diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst
index a51bc1e9ef40d9df8496d19cf052c4178ac73b1f..19c4e78666ff4bf5e3acaf7047d09763c60c14ab 100644
--- a/Documentation/admin-guide/cgroup-v2.rst
+++ b/Documentation/admin-guide/cgroup-v2.rst
@@ -177,6 +177,15 @@ cgroup v2 currently supports the following mount options.
ignored on non-init namespace mounts. Please refer to the
Delegation section for details.
+ memory_localevents
+
+ Only populate memory.events with data for the current cgroup,
+ and not any subtrees. This is legacy behaviour, the default
+ behaviour without this option is to include subtree counts.
+ This option is system wide and can only be set on mount or
+ modified through remount from the init namespace. The mount
+ option is ignored on non-init namespace mounts.
+
Organizing Processes and Threads
--------------------------------
diff --git a/Documentation/core-api/flexible-arrays.rst b/Documentation/core-api/flexible-arrays.rst
deleted file mode 100644
index b6b85a1b518ed5c6fd38a25f74fa967c3666125c..0000000000000000000000000000000000000000
--- a/Documentation/core-api/flexible-arrays.rst
+++ /dev/null
@@ -1,130 +0,0 @@
-
-===================================
-Using flexible arrays in the kernel
-===================================
-
-Large contiguous memory allocations can be unreliable in the Linux kernel.
-Kernel programmers will sometimes respond to this problem by allocating
-pages with :c:func:`vmalloc()`. This solution not ideal, though. On 32-bit
-systems, memory from vmalloc() must be mapped into a relatively small address
-space; it's easy to run out. On SMP systems, the page table changes required
-by vmalloc() allocations can require expensive cross-processor interrupts on
-all CPUs. And, on all systems, use of space in the vmalloc() range increases
-pressure on the translation lookaside buffer (TLB), reducing the performance
-of the system.
-
-In many cases, the need for memory from vmalloc() can be eliminated by piecing
-together an array from smaller parts; the flexible array library exists to make
-this task easier.
-
-A flexible array holds an arbitrary (within limits) number of fixed-sized
-objects, accessed via an integer index. Sparse arrays are handled
-reasonably well. Only single-page allocations are made, so memory
-allocation failures should be relatively rare. The down sides are that the
-arrays cannot be indexed directly, individual object size cannot exceed the
-system page size, and putting data into a flexible array requires a copy
-operation. It's also worth noting that flexible arrays do no internal
-locking at all; if concurrent access to an array is possible, then the
-caller must arrange for appropriate mutual exclusion.
-
-The creation of a flexible array is done with :c:func:`flex_array_alloc()`::
-
- #include <linux/flex_array.h>
-
- struct flex_array *flex_array_alloc(int element_size,
- unsigned int total,
- gfp_t flags);
-
-The individual object size is provided by ``element_size``, while total is the
-maximum number of objects which can be stored in the array. The flags
-argument is passed directly to the internal memory allocation calls. With
-the current code, using flags to ask for high memory is likely to lead to
-notably unpleasant side effects.
-
-It is also possible to define flexible arrays at compile time with::
-
- DEFINE_FLEX_ARRAY(name, element_size, total);
-
-This macro will result in a definition of an array with the given name; the
-element size and total will be checked for validity at compile time.
-
-Storing data into a flexible array is accomplished with a call to
-:c:func:`flex_array_put()`::
-
- int flex_array_put(struct flex_array *array, unsigned int element_nr,
- void *src, gfp_t flags);
-
-This call will copy the data from src into the array, in the position
-indicated by ``element_nr`` (which must be less than the maximum specified when
-the array was created). If any memory allocations must be performed, flags
-will be used. The return value is zero on success, a negative error code
-otherwise.
-
-There might possibly be a need to store data into a flexible array while
-running in some sort of atomic context; in this situation, sleeping in the
-memory allocator would be a bad thing. That can be avoided by using
-``GFP_ATOMIC`` for the flags value, but, often, there is a better way. The
-trick is to ensure that any needed memory allocations are done before
-entering atomic context, using :c:func:`flex_array_prealloc()`::
-
- int flex_array_prealloc(struct flex_array *array, unsigned int start,
- unsigned int nr_elements, gfp_t flags);
-
-This function will ensure that memory for the elements indexed in the range
-defined by ``start`` and ``nr_elements`` has been allocated. Thereafter, a
-``flex_array_put()`` call on an element in that range is guaranteed not to
-block.
-
-Getting data back out of the array is done with :c:func:`flex_array_get()`::
-
- void *flex_array_get(struct flex_array *fa, unsigned int element_nr);
-
-The return value is a pointer to the data element, or NULL if that
-particular element has never been allocated.
-
-Note that it is possible to get back a valid pointer for an element which
-has never been stored in the array. Memory for array elements is allocated
-one page at a time; a single allocation could provide memory for several
-adjacent elements. Flexible array elements are normally initialized to the
-value ``FLEX_ARRAY_FREE`` (defined as 0x6c in <linux/poison.h>), so errors
-involving that number probably result from use of unstored array entries.
-Note that, if array elements are allocated with ``__GFP_ZERO``, they will be
-initialized to zero and this poisoning will not happen.
-
-Individual elements in the array can be cleared with
-:c:func:`flex_array_clear()`::
-
- int flex_array_clear(struct flex_array *array, unsigned int element_nr);
-
-This function will set the given element to ``FLEX_ARRAY_FREE`` and return
-zero. If storage for the indicated element is not allocated for the array,
-``flex_array_clear()`` will return ``-EINVAL`` instead. Note that clearing an
-element does not release the storage associated with it; to reduce the
-allocated size of an array, call :c:func:`flex_array_shrink()`::
-
- int flex_array_shrink(struct flex_array *array);
-
-The return value will be the number of pages of memory actually freed.
-This function works by scanning the array for pages containing nothing but
-``FLEX_ARRAY_FREE`` bytes, so (1) it can be expensive, and (2) it will not work
-if the array's pages are allocated with ``__GFP_ZERO``.
-
-It is possible to remove all elements of an array with a call to
-:c:func:`flex_array_free_parts()`::
-
- void flex_array_free_parts(struct flex_array *array);
-
-This call frees all elements, but leaves the array itself in place.
-Freeing the entire array is done with :c:func:`flex_array_free()`::
-
- void flex_array_free(struct flex_array *array);
-
-As of this writing, there are no users of flexible arrays in the mainline
-kernel. The functions described here are also not exported to modules;
-that will probably be fixed when somebody comes up with a need for it.
-
-
-Flexible array functions
-------------------------
-
-.. kernel-doc:: include/linux/flex_array.h
diff --git a/Documentation/core-api/generic-radix-tree.rst b/Documentation/core-api/generic-radix-tree.rst
new file mode 100644
index 0000000000000000000000000000000000000000..ed42839ae42f3a633a5916d76264746cacfcff7a
--- /dev/null
+++ b/Documentation/core-api/generic-radix-tree.rst
@@ -0,0 +1,12 @@
+=================================
+Generic radix trees/sparse arrays
+=================================
+
+.. kernel-doc:: include/linux/generic-radix-tree.h
+ :doc: Generic radix trees/sparse arrays
+
+generic radix tree functions
+----------------------------
+
+.. kernel-doc:: include/linux/generic-radix-tree.h
+ :functions:
diff --git a/Documentation/core-api/index.rst b/Documentation/core-api/index.rst
index 3adee82be311e61e231857ae788bce06b5b87ef8..6870baffef82d470de7cc699a7599e075d3f71b5 100644
--- a/Documentation/core-api/index.rst
+++ b/Documentation/core-api/index.rst
@@ -28,6 +28,7 @@ Core utilities
errseq
printk-formats
circular-buffers
+ generic-radix-tree
memory-allocation
mm-api
gfp_mask-from-fs-io
diff --git a/Documentation/flexible-arrays.txt b/Documentation/flexible-arrays.txt
deleted file mode 100644
index a0f2989dd8040fa409d69eb95c631125ec293a82..0000000000000000000000000000000000000000
--- a/Documentation/flexible-arrays.txt
+++ /dev/null
@@ -1,123 +0,0 @@
-===================================
-Using flexible arrays in the kernel
-===================================
-
-:Updated: Last updated for 2.6.32
-:Author: Jonathan Corbet <corbet@lwn.net>
-
-Large contiguous memory allocations can be unreliable in the Linux kernel.
-Kernel programmers will sometimes respond to this problem by allocating
-pages with vmalloc(). This solution not ideal, though. On 32-bit systems,
-memory from vmalloc() must be mapped into a relatively small address space;
-it's easy to run out. On SMP systems, the page table changes required by
-vmalloc() allocations can require expensive cross-processor interrupts on
-all CPUs. And, on all systems, use of space in the vmalloc() range
-increases pressure on the translation lookaside buffer (TLB), reducing the
-performance of the system.
-
-In many cases, the need for memory from vmalloc() can be eliminated by
-piecing together an array from smaller parts; the flexible array library
-exists to make this task easier.
-
-A flexible array holds an arbitrary (within limits) number of fixed-sized
-objects, accessed via an integer index. Sparse arrays are handled
-reasonably well. Only single-page allocations are made, so memory
-allocation failures should be relatively rare. The down sides are that the
-arrays cannot be indexed directly, individual object size cannot exceed the
-system page size, and putting data into a flexible array requires a copy
-operation. It's also worth noting that flexible arrays do no internal
-locking at all; if concurrent access to an array is possible, then the
-caller must arrange for appropriate mutual exclusion.
-
-The creation of a flexible array is done with::
-
- #include <linux/flex_array.h>
-
- struct flex_array *flex_array_alloc(int element_size,
- unsigned int total,
- gfp_t flags);
-
-The individual object size is provided by element_size, while total is the
-maximum number of objects which can be stored in the array. The flags
-argument is passed directly to the internal memory allocation calls. With
-the current code, using flags to ask for high memory is likely to lead to
-notably unpleasant side effects.
-
-It is also possible to define flexible arrays at compile time with::
-
- DEFINE_FLEX_ARRAY(name, element_size, total);
-
-This macro will result in a definition of an array with the given name; the
-element size and total will be checked for validity at compile time.
-
-Storing data into a flexible array is accomplished with a call to::
-
- int flex_array_put(struct flex_array *array, unsigned int element_nr,
- void *src, gfp_t flags);
-
-This call will copy the data from src into the array, in the position
-indicated by element_nr (which must be less than the maximum specified when
-the array was created). If any memory allocations must be performed, flags
-will be used. The return value is zero on success, a negative error code
-otherwise.
-
-There might possibly be a need to store data into a flexible array while
-running in some sort of atomic context; in this situation, sleeping in the
-memory allocator would be a bad thing. That can be avoided by using
-GFP_ATOMIC for the flags value, but, often, there is a better way. The
-trick is to ensure that any needed memory allocations are done before
-entering atomic context, using::
-
- int flex_array_prealloc(struct flex_array *array, unsigned int start,
- unsigned int nr_elements, gfp_t flags);
-
-This function will ensure that memory for the elements indexed in the range
-defined by start and nr_elements has been allocated. Thereafter, a
-flex_array_put() call on an element in that range is guaranteed not to
-block.
-
-Getting data back out of the array is done with::
-
- void *flex_array_get(struct flex_array *fa, unsigned int element_nr);
-
-The return value is a pointer to the data element, or NULL if that
-particular element has never been allocated.
-
-Note that it is possible to get back a valid pointer for an element which
-has never been stored in the array. Memory for array elements is allocated
-one page at a time; a single allocation could provide memory for several
-adjacent elements. Flexible array elements are normally initialized to the
-value FLEX_ARRAY_FREE (defined as 0x6c in <linux/poison.h>), so errors
-involving that number probably result from use of unstored array entries.
-Note that, if array elements are allocated with __GFP_ZERO, they will be
-initialized to zero and this poisoning will not happen.
-
-Individual elements in the array can be cleared with::
-
- int flex_array_clear(struct flex_array *array, unsigned int element_nr);
-
-This function will set the given element to FLEX_ARRAY_FREE and return
-zero. If storage for the indicated element is not allocated for the array,
-flex_array_clear() will return -EINVAL instead. Note that clearing an
-element does not release the storage associated with it; to reduce the
-allocated size of an array, call::
-
- int flex_array_shrink(struct flex_array *array);
-
-The return value will be the number of pages of memory actually freed.
-This function works by scanning the array for pages containing nothing but
-FLEX_ARRAY_FREE bytes, so (1) it can be expensive, and (2) it will not work
-if the array's pages are allocated with __GFP_ZERO.
-
-It is possible to remove all elements of an array with a call to::
-
- void flex_array_free_parts(struct flex_array *array);
-
-This call frees all elements, but leaves the array itself in place.
-Freeing the entire array is done with::
-
- void flex_array_free(struct flex_array *array);
-
-As of this writing, there are no users of flexible arrays in the mainline
-kernel. The functions described here are also not exported to modules;
-that will probably be fixed when somebody comes up with a need for it.
diff --git a/MAINTAINERS b/MAINTAINERS
index a770dc7903219d72c59e9ced8053bd060d8cb319..1e64279f338abdc9de6fe5be53a9683decda6e12 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1920,10 +1920,11 @@ F: drivers/usb/host/ehci-w90x900.c
F: drivers/video/fbdev/nuc900fb.c
ARM/OPENMOKO NEO FREERUNNER (GTA02) MACHINE SUPPORT
-M: Nelson Castillo <arhuaco@freaks-unidos.net>
L: openmoko-kernel@lists.openmoko.org (subscribers-only)
W: http://wiki.openmoko.org/wiki/Neo_FreeRunner
-S: Supported
+S: Orphan
+F: arch/arm/mach-s3c24xx/mach-gta02.c
+F: arch/arm/mach-s3c24xx/gta02.h
ARM/Orion SoC/Technologic Systems TS-78xx platform support
M: Alexander Clouter <alex@digriz.org.uk>
diff --git a/arch/alpha/kernel/core_cia.c b/arch/alpha/kernel/core_cia.c
index 867e8730b0c5c4819a19983efa19522a0984f760..f489170201c345f7b56b17b8d8732f84d4e154c4 100644
--- a/arch/alpha/kernel/core_cia.c
+++ b/arch/alpha/kernel/core_cia.c
@@ -331,7 +331,10 @@ cia_prepare_tbia_workaround(int window)
long i;
/* Use minimal 1K map. */
- ppte = memblock_alloc_from(CIA_BROKEN_TBIA_SIZE, 32768, 0);
+ ppte = memblock_alloc(CIA_BROKEN_TBIA_SIZE, 32768);
+ if (!ppte)
+ panic("%s: Failed to allocate %u bytes align=0x%x\n",
+ __func__, CIA_BROKEN_TBIA_SIZE, 32768);
pte = (virt_to_phys(ppte) >> (PAGE_SHIFT - 1)) | 1;
for (i = 0; i < CIA_BROKEN_TBIA_SIZE / sizeof(unsigned long); ++i)
diff --git a/arch/alpha/kernel/core_marvel.c b/arch/alpha/kernel/core_marvel.c
index c1d0c18c71ca4c7d8523094d4ba4568418754336..1db9d0eb292211882aa6eb350024c7966415d9b7 100644
--- a/arch/alpha/kernel/core_marvel.c
+++ b/arch/alpha/kernel/core_marvel.c
@@ -83,6 +83,9 @@ mk_resource_name(int pe, int port, char *str)
sprintf(tmp, "PCI %s PE %d PORT %d", str, pe, port);
name = memblock_alloc(strlen(tmp) + 1, SMP_CACHE_BYTES);
+ if (!name)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ strlen(tmp) + 1);
strcpy(name, tmp);
return name;
@@ -118,6 +121,9 @@ alloc_io7(unsigned int pe)
}
io7 = memblock_alloc(sizeof(*io7), SMP_CACHE_BYTES);
+ if (!io7)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ sizeof(*io7));
io7->pe = pe;
raw_spin_lock_init(&io7->irq_lock);
diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c
index 091cff3c68fd47cfa860761eade0587b8df43408..ae82061edae995dc1ee2d9f711c9a1e604915849 100644
--- a/arch/alpha/kernel/pci-noop.c
+++ b/arch/alpha/kernel/pci-noop.c
@@ -34,6 +34,9 @@ alloc_pci_controller(void)
struct pci_controller *hose;
hose = memblock_alloc(sizeof(*hose), SMP_CACHE_BYTES);
+ if (!hose)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ sizeof(*hose));
*hose_tail = hose;
hose_tail = &hose->next;
@@ -44,7 +47,13 @@ alloc_pci_controller(void)
struct resource * __init
alloc_resource(void)
{
- return memblock_alloc(sizeof(struct resource), SMP_CACHE_BYTES);
+ void *ptr = memblock_alloc(sizeof(struct resource), SMP_CACHE_BYTES);
+
+ if (!ptr)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ sizeof(struct resource));
+
+ return ptr;
}
SYSCALL_DEFINE3(pciconfig_iobase, long, which, unsigned long, bus,
@@ -54,7 +63,7 @@ SYSCALL_DEFINE3(pciconfig_iobase, long, which, unsigned long, bus,
/* from hose or from bus.devfn */
if (which & IOBASE_FROM_HOSE) {
- for (hose = hose_head; hose; hose = hose->next)
+ for (hose = hose_head; hose; hose = hose->next)
if (hose->index == bus)
break;
if (!hose)
diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
index 97098127df8389e70a3e74e243728d090744b87e..64fbfb0763b292975ce8fa47d1e2b2bc17be29bb 100644
--- a/arch/alpha/kernel/pci.c
+++ b/arch/alpha/kernel/pci.c
@@ -393,6 +393,9 @@ alloc_pci_controller(void)
struct pci_controller *hose;
hose = memblock_alloc(sizeof(*hose), SMP_CACHE_BYTES);
+ if (!hose)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ sizeof(*hose));
*hose_tail = hose;
hose_tail = &hose->next;
@@ -403,7 +406,13 @@ alloc_pci_controller(void)
struct resource * __init
alloc_resource(void)
{
- return memblock_alloc(sizeof(struct resource), SMP_CACHE_BYTES);
+ void *ptr = memblock_alloc(sizeof(struct resource), SMP_CACHE_BYTES);
+
+ if (!ptr)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ sizeof(struct resource));
+
+ return ptr;
}
diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c
index aa0f50d0f8237f73ec921239a509f51a6d20e167..3034d6d936d215240ceea3a300d78696800c429e 100644
--- a/arch/alpha/kernel/pci_iommu.c
+++ b/arch/alpha/kernel/pci_iommu.c
@@ -80,6 +80,9 @@ iommu_arena_new_node(int nid, struct pci_controller *hose, dma_addr_t base,
" falling back to system-wide allocation\n",
__func__, nid);
arena = memblock_alloc(sizeof(*arena), SMP_CACHE_BYTES);
+ if (!arena)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ sizeof(*arena));
}
arena->ptes = memblock_alloc_node(sizeof(*arena), align, nid);
@@ -87,13 +90,22 @@ iommu_arena_new_node(int nid, struct pci_controller *hose, dma_addr_t base,
printk("%s: couldn't allocate arena ptes from node %d\n"
" falling back to system-wide allocation\n",
__func__, nid);
- arena->ptes = memblock_alloc_from(mem_size, align, 0);
+ arena->ptes = memblock_alloc(mem_size, align);
+ if (!arena->ptes)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, mem_size, align);
}
#else /* CONFIG_DISCONTIGMEM */
arena = memblock_alloc(sizeof(*arena), SMP_CACHE_BYTES);
- arena->ptes = memblock_alloc_from(mem_size, align, 0);
+ if (!arena)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ sizeof(*arena));
+ arena->ptes = memblock_alloc(mem_size, align);
+ if (!arena->ptes)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, mem_size, align);
#endif /* CONFIG_DISCONTIGMEM */
diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c
index 4b5b1b244f86a108bdda89f33316e84c77950df3..5d4c76a77a9f3edd9d8769f91c9425bb293bbbbe 100644
--- a/arch/alpha/kernel/setup.c
+++ b/arch/alpha/kernel/setup.c
@@ -293,7 +293,7 @@ move_initrd(unsigned long mem_limit)
unsigned long size;
size = initrd_end - initrd_start;
- start = memblock_alloc_from(PAGE_ALIGN(size), PAGE_SIZE, 0);
+ start = memblock_alloc(PAGE_ALIGN(size), PAGE_SIZE);
if (!start || __pa(start) + size > mem_limit) {
initrd_start = initrd_end = 0;
return NULL;
diff --git a/arch/arc/kernel/unwind.c b/arch/arc/kernel/unwind.c
index d34f69eb1a955f593925d3f6e187206cdaa3ff20..271e9fafa4796ba18cc4ffb158cfc5d9aebbf3a4 100644
--- a/arch/arc/kernel/unwind.c
+++ b/arch/arc/kernel/unwind.c
@@ -181,8 +181,7 @@ static void init_unwind_hdr(struct unwind_table *table,
*/
static void *__init unw_hdr_alloc_early(unsigned long sz)
{
- return memblock_alloc_from_nopanic(sz, sizeof(unsigned int),
- MAX_DMA_ADDRESS);
+ return memblock_alloc_from(sz, sizeof(unsigned int), MAX_DMA_ADDRESS);
}
static void *unw_hdr_alloc(unsigned long sz)
diff --git a/arch/arc/mm/highmem.c b/arch/arc/mm/highmem.c
index 48e70015181048640e083e4c1f8b1deb9a02b95d..11f57e2ced8aae639f48acca52d8423dcb6cee3c 100644
--- a/arch/arc/mm/highmem.c
+++ b/arch/arc/mm/highmem.c
@@ -124,6 +124,10 @@ static noinline pte_t * __init alloc_kmap_pgtable(unsigned long kvaddr)
pmd_k = pmd_offset(pud_k, kvaddr);
pte_k = (pte_t *)memblock_alloc_low(PAGE_SIZE, PAGE_SIZE);
+ if (!pte_k)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
+
pmd_populate_kernel(&init_mm, pmd_k, pte_k);
return pte_k;
}
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 375b13f7e780663eddb3f04e632751064a6b5bfd..5d78b6ac0429a86bb8756d7ec56a60060f9f1c95 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -867,6 +867,9 @@ static void __init request_standard_resources(const struct machine_desc *mdesc)
boot_alias_start = phys_to_idmap(start);
if (arm_has_idmap_alias() && boot_alias_start != IDMAP_INVALID_ADDR) {
res = memblock_alloc(sizeof(*res), SMP_CACHE_BYTES);
+ if (!res)
+ panic("%s: Failed to allocate %zu bytes\n",
+ __func__, sizeof(*res));
res->name = "System RAM (boot alias)";
res->start = boot_alias_start;
res->end = phys_to_idmap(end);
@@ -875,6 +878,9 @@ static void __init request_standard_resources(const struct machine_desc *mdesc)
}
res = memblock_alloc(sizeof(*res), SMP_CACHE_BYTES);
+ if (!res)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ sizeof(*res));
res->name = "System RAM";
res->start = start;
res->end = end;
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index a6b0805b7977200521a73b341798c912fc8ec681..c2daabbe0af05da23a469efe0ea2ed1a6eb2eb7b 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -205,7 +205,11 @@ phys_addr_t __init arm_memblock_steal(phys_addr_t size, phys_addr_t align)
BUG_ON(!arm_memblock_steal_permitted);
- phys = memblock_alloc_base(size, align, MEMBLOCK_ALLOC_ANYWHERE);
+ phys = memblock_phys_alloc(size, align);
+ if (!phys)
+ panic("Failed to steal %pa bytes at %pS\n",
+ &size, (void *)_RET_IP_);
+
memblock_free(phys, size);
memblock_remove(phys, size);
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index f5cc1ccfea3db97ac5e72867c034e79b797fbe92..f3ce34113f8925ddb886dc03aa4558baef874e4c 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -719,16 +719,15 @@ EXPORT_SYMBOL(phys_mem_access_prot);
#define vectors_base() (vectors_high() ? 0xffff0000 : 0)
-static void __init *early_alloc_aligned(unsigned long sz, unsigned long align)
-{
- void *ptr = __va(memblock_phys_alloc(sz, align));
- memset(ptr, 0, sz);
- return ptr;
-}
-
static void __init *early_alloc(unsigned long sz)
{
- return early_alloc_aligned(sz, sz);
+ void *ptr = memblock_alloc(sz, sz);
+
+ if (!ptr)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, sz, sz);
+
+ return ptr;
}
static void *__init late_alloc(unsigned long sz)
@@ -1000,7 +999,10 @@ void __init iotable_init(struct map_desc *io_desc, int nr)
if (!nr)
return;
- svm = early_alloc_aligned(sizeof(*svm) * nr, __alignof__(*svm));
+ svm = memblock_alloc(sizeof(*svm) * nr, __alignof__(*svm));
+ if (!svm)
+ panic("%s: Failed to allocate %zu bytes align=0x%zx\n",
+ __func__, sizeof(*svm) * nr, __alignof__(*svm));
for (md = io_desc; nr; md++, nr--) {
create_mapping(md);
@@ -1022,7 +1024,10 @@ void __init vm_reserve_area_early(unsigned long addr, unsigned long size,
struct vm_struct *vm;
struct static_vm *svm;
- svm = early_alloc_aligned(sizeof(*svm), __alignof__(*svm));
+ svm = memblock_alloc(sizeof(*svm), __alignof__(*svm));
+ if (!svm)
+ panic("%s: Failed to allocate %zu bytes align=0x%zx\n",
+ __func__, sizeof(*svm), __alignof__(*svm));
vm = &svm->vm;
vm->addr = (void *)addr;
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 834b321a88f881d0badc700acc97cf42f381ba18..f8482fe5a190f47937ee188aa7ff3cbf67bcf2a2 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -208,6 +208,7 @@ static void __init request_standard_resources(void)
struct memblock_region *region;
struct resource *res;
unsigned long i = 0;
+ size_t res_size;
kernel_code.start = __pa_symbol(_text);
kernel_code.end = __pa_symbol(__init_begin - 1);
@@ -215,9 +216,10 @@ static void __init request_standard_resources(void)
kernel_data.end = __pa_symbol(_end - 1);
num_standard_resources = memblock.memory.cnt;
- standard_resources = memblock_alloc_low(num_standard_resources *
- sizeof(*standard_resources),
- SMP_CACHE_BYTES);
+ res_size = num_standard_resources * sizeof(*standard_resources);
+ standard_resources = memblock_alloc_low(res_size, SMP_CACHE_BYTES);
+ if (!standard_resources)
+ panic("%s: Failed to allocate %zu bytes\n", __func__, res_size);
for_each_memblock(memory, region) {
res = &standard_resources[i++];
diff --git a/arch/arm64/mm/kasan_init.c b/arch/arm64/mm/kasan_init.c
index f37a86d2a69da5d8a93a53f43b5a9d075c6ba2a4..296de39ddee5966f25f0394cd617a9b84fc6a5f0 100644
--- a/arch/arm64/mm/kasan_init.c
+++ b/arch/arm64/mm/kasan_init.c
@@ -40,6 +40,11 @@ static phys_addr_t __init kasan_alloc_zeroed_page(int node)
void *p = memblock_alloc_try_nid(PAGE_SIZE, PAGE_SIZE,
__pa(MAX_DMA_ADDRESS),
MEMBLOCK_ALLOC_KASAN, node);
+ if (!p)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx nid=%d from=%llx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE, node,
+ __pa(MAX_DMA_ADDRESS));
+
return __pa(p);
}
@@ -48,6 +53,11 @@ static phys_addr_t __init kasan_alloc_raw_page(int node)
void *p = memblock_alloc_try_nid_raw(PAGE_SIZE, PAGE_SIZE,
__pa(MAX_DMA_ADDRESS),
MEMBLOCK_ALLOC_KASAN, node);
+ if (!p)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx nid=%d from=%llx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE, node,
+ __pa(MAX_DMA_ADDRESS));
+
return __pa(p);
}
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 402b6495ff5815644e60d65679acd40a17ee8fbe..e97f018ff740f8a1cea437aa88a652882412928b 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -103,6 +103,8 @@ static phys_addr_t __init early_pgtable_alloc(void)
void *ptr;
phys = memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE);
+ if (!phys)
+ panic("Failed to allocate page table page\n");
/*
* The FIX_{PGD,PUD,PMD} slots may be in active use, but the FIX_PTE
diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index 7a0a555b366af0aa8c56a801cf9f5ecdbd070112..06a6f264f2ddf27f1274802882f9cedb77e043d4 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -237,6 +237,10 @@ static void __init setup_node_data(int nid, u64 start_pfn, u64 end_pfn)
pr_info("Initmem setup node %d [<memory-less node>]\n", nid);
nd_pa = memblock_phys_alloc_try_nid(nd_size, SMP_CACHE_BYTES, nid);
+ if (!nd_pa)
+ panic("Cannot allocate %zu bytes for node %d data\n",
+ nd_size, nid);
+
nd = __va(nd_pa);
/* report and initialize */
diff --git a/arch/c6x/mm/dma-coherent.c b/arch/c6x/mm/dma-coherent.c
index 75b79571732c12861f7ab4c734fc1f2d20ca341e..0d3701bc88f603a1c43f2366d6578010735db873 100644
--- a/arch/c6x/mm/dma-coherent.c
+++ b/arch/c6x/mm/dma-coherent.c
@@ -121,8 +121,6 @@ void arch_dma_free(struct device *dev, size_t size, void *vaddr,
*/
void __init coherent_mem_init(phys_addr_t start, u32 size)
{
- phys_addr_t bitmap_phys;
-
if (!size)
return;
@@ -138,11 +136,12 @@ void __init coherent_mem_init(phys_addr_t start, u32 size)
if (dma_size & (PAGE_SIZE - 1))
++dma_pages;
- bitmap_phys = memblock_phys_alloc(BITS_TO_LONGS(dma_pages) * sizeof(long),
- sizeof(long));
-
- dma_bitmap = phys_to_virt(bitmap_phys);
- memset(dma_bitmap, 0, dma_pages * PAGE_SIZE);
+ dma_bitmap = memblock_alloc(BITS_TO_LONGS(dma_pages) * sizeof(long),
+ sizeof(long));
+ if (!dma_bitmap)
+ panic("%s: Failed to allocate %zu bytes align=0x%zx\n",
+ __func__, BITS_TO_LONGS(dma_pages) * sizeof(long),
+ sizeof(long));
}
static void c6x_dma_sync(struct device *dev, phys_addr_t paddr, size_t size,
diff --git a/arch/c6x/mm/init.c b/arch/c6x/mm/init.c
index af5ada0520bea716b306209448e3235deb830ac6..fe582c3a1794143baff4a686e85f2b24d526fe4a 100644
--- a/arch/c6x/mm/init.c
+++ b/arch/c6x/mm/init.c
@@ -40,7 +40,9 @@ void __init paging_init(void)
empty_zero_page = (unsigned long) memblock_alloc(PAGE_SIZE,
PAGE_SIZE);
- memset((void *)empty_zero_page, 0, PAGE_SIZE);
+ if (!empty_zero_page)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
/*
* Set up user data space
diff --git a/arch/csky/mm/highmem.c b/arch/csky/mm/highmem.c
index 53b1bfa4c462e798aa3753d4d4d838639d4f6cf4..3317b774f6dc145eae07b562689d975404279bb9 100644
--- a/arch/csky/mm/highmem.c
+++ b/arch/csky/mm/highmem.c
@@ -141,6 +141,11 @@ static void __init fixrange_init(unsigned long start, unsigned long end,
for (; (k < PTRS_PER_PMD) && (vaddr != end); pmd++, k++) {
if (pmd_none(*pmd)) {
pte = (pte_t *) memblock_alloc_low(PAGE_SIZE, PAGE_SIZE);
+ if (!pte)
+ panic("%s: Failed to allocate %lu bytes align=%lx\n",
+ __func__, PAGE_SIZE,
+ PAGE_SIZE);
+
set_pmd(pmd, __pmd(__pa(pte)));
BUG_ON(pte != pte_offset_kernel(pmd, 0));
}
diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c
index 6519252ac4dbd7669ca5ebc95930e91773d4f397..0f04a5e9aa4f393226d7b1c287d2111826d944ec 100644
--- a/arch/h8300/mm/init.c
+++ b/arch/h8300/mm/init.c
@@ -68,7 +68,9 @@ void __init paging_init(void)
* to a couple of allocated pages.
*/
empty_zero_page = (unsigned long)memblock_alloc(PAGE_SIZE, PAGE_SIZE);
- memset((void *)empty_zero_page, 0, PAGE_SIZE);
+ if (!empty_zero_page)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
/*
* Set up SFC/DFC registers (user data space).
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 91bd1e129379db09a7cc0ac60c41d5d94d04fc70..5cabb3fd159ffecd62b71d501338b635f332199c 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -359,11 +359,6 @@ typedef struct ia64_state_log_s
static ia64_state_log_t ia64_state_log[IA64_MAX_LOG_TYPES];
-#define IA64_LOG_ALLOCATE(it, size) \
- {ia64_state_log[it].isl_log[IA64_LOG_CURR_INDEX(it)] = \
- (ia64_err_rec_t *)memblock_alloc(size, SMP_CACHE_BYTES); \
- ia64_state_log[it].isl_log[IA64_LOG_NEXT_INDEX(it)] = \
- (ia64_err_rec_t *)memblock_alloc(size, SMP_CACHE_BYTES);}
#define IA64_LOG_LOCK_INIT(it) spin_lock_init(&ia64_state_log[it].isl_lock)
#define IA64_LOG_LOCK(it) spin_lock_irqsave(&ia64_state_log[it].isl_lock, s)
#define IA64_LOG_UNLOCK(it) spin_unlock_irqrestore(&ia64_state_log[it].isl_lock,s)
@@ -378,6 +373,19 @@ static ia64_state_log_t ia64_state_log[IA64_MAX_LOG_TYPES];
#define IA64_LOG_CURR_BUFFER(it) (void *)((ia64_state_log[it].isl_log[IA64_LOG_CURR_INDEX(it)]))
#define IA64_LOG_COUNT(it) ia64_state_log[it].isl_count
+static inline void ia64_log_allocate(int it, u64 size)
+{
+ ia64_state_log[it].isl_log[IA64_LOG_CURR_INDEX(it)] =
+ (ia64_err_rec_t *)memblock_alloc(size, SMP_CACHE_BYTES);
+ if (!ia64_state_log[it].isl_log[IA64_LOG_CURR_INDEX(it)])
+ panic("%s: Failed to allocate %llu bytes\n", __func__, size);
+
+ ia64_state_log[it].isl_log[IA64_LOG_NEXT_INDEX(it)] =
+ (ia64_err_rec_t *)memblock_alloc(size, SMP_CACHE_BYTES);
+ if (!ia64_state_log[it].isl_log[IA64_LOG_NEXT_INDEX(it)])
+ panic("%s: Failed to allocate %llu bytes\n", __func__, size);
+}
+
/*
* ia64_log_init
* Reset the OS ia64 log buffer
@@ -399,9 +407,7 @@ ia64_log_init(int sal_info_type)
return;
// set up OS data structures to hold error info
- IA64_LOG_ALLOCATE(sal_info_type, max_size);
- memset(IA64_LOG_CURR_BUFFER(sal_info_type), 0, max_size);
- memset(IA64_LOG_NEXT_BUFFER(sal_info_type), 0, max_size);
+ ia64_log_allocate(sal_info_type, max_size);
}
/*
@@ -1835,8 +1841,7 @@ format_mca_init_stack(void *mca_data, unsigned long offset,
/* Caller prevents this from being called after init */
static void * __ref mca_bootmem(void)
{
- return memblock_alloc_from(sizeof(struct ia64_mca_cpu),
- KERNEL_STACK_SIZE, 0);
+ return memblock_alloc(sizeof(struct ia64_mca_cpu), KERNEL_STACK_SIZE);
}
/* Do per-CPU MCA-related initialization. */
diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c
index 6e447234205c6f94fe5b6d2d276c0eca22c0b9dd..d29fb6b9fa331030fbdad1247d09cb7e77b2317c 100644
--- a/arch/ia64/mm/contig.c
+++ b/arch/ia64/mm/contig.c
@@ -84,9 +84,13 @@ void *per_cpu_init(void)
static inline void
alloc_per_cpu_data(void)
{
- cpu_data = memblock_alloc_from(PERCPU_PAGE_SIZE * num_possible_cpus(),
- PERCPU_PAGE_SIZE,
+ size_t size = PERCPU_PAGE_SIZE * num_possible_cpus();
+
+ cpu_data = memblock_alloc_from(size, PERCPU_PAGE_SIZE,
__pa(MAX_DMA_ADDRESS));
+ if (!cpu_data)
+ panic("%s: Failed to allocate %lu bytes align=%lx from=%lx\n",
+ __func__, size, PERCPU_PAGE_SIZE, __pa(MAX_DMA_ADDRESS));
}
/**
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index f9c36750c6a47feeb6190060a71817fe851dc464..05490dd073e6c3f44cc69f77a305da83e7abc818 100644
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -454,6 +454,10 @@ static void __init *memory_less_node_alloc(int nid, unsigned long pernodesize)
__pa(MAX_DMA_ADDRESS),
MEMBLOCK_ALLOC_ACCESSIBLE,
bestnode);
+ if (!ptr)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx nid=%d from=%lx\n",
+ __func__, pernodesize, PERCPU_PAGE_SIZE, bestnode,
+ __pa(MAX_DMA_ADDRESS));
return ptr;
}
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 29d841525ca1fef5adf33247fa3e9ebebbda4fa0..e49200e31750d1a78a98ab33bb5b8982de6b1cc1 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -444,23 +444,45 @@ int __init create_mem_map_page_table(u64 start, u64 end, void *arg)
for (address = start_page; address < end_page; address += PAGE_SIZE) {
pgd = pgd_offset_k(address);
- if (pgd_none(*pgd))
- pgd_populate(&init_mm, pgd, memblock_alloc_node(PAGE_SIZE, PAGE_SIZE, node));
+ if (pgd_none(*pgd)) {
+ pud = memblock_alloc_node(PAGE_SIZE, PAGE_SIZE, node);
+ if (!pud)
+ goto err_alloc;
+ pgd_populate(&init_mm, pgd, pud);
+ }
pud = pud_offset(pgd, address);
- if (pud_none(*pud))
- pud_populate(&init_mm, pud, memblock_alloc_node(PAGE_SIZE, PAGE_SIZE, node));
+ if (pud_none(*pud)) {
+ pmd = memblock_alloc_node(PAGE_SIZE, PAGE_SIZE, node);
+ if (!pmd)
+ goto err_alloc;
+ pud_populate(&init_mm, pud, pmd);
+ }
pmd = pmd_offset(pud, address);
- if (pmd_none(*pmd))
- pmd_populate_kernel(&init_mm, pmd, memblock_alloc_node(PAGE_SIZE, PAGE_SIZE, node));
+ if (pmd_none(*pmd)) {
+ pte = memblock_alloc_node(PAGE_SIZE, PAGE_SIZE, node);
+ if (!pte)
+ goto err_alloc;
+ pmd_populate_kernel(&init_mm, pmd, pte);
+ }
pte = pte_offset_kernel(pmd, address);
- if (pte_none(*pte))
- set_pte(pte, pfn_pte(__pa(memblock_alloc_node(PAGE_SIZE, PAGE_SIZE, node)) >> PAGE_SHIFT,
+ if (pte_none(*pte)) {
+ void *page = memblock_alloc_node(PAGE_SIZE, PAGE_SIZE,
+ node);
+ if (!page)
+ goto err_alloc;
+ set_pte(pte, pfn_pte(__pa(page) >> PAGE_SHIFT,
PAGE_KERNEL));
+ }
}
return 0;
+
+err_alloc:
+ panic("%s: Failed to allocate %lu bytes align=0x%lx nid=%d\n",
+ __func__, PAGE_SIZE, PAGE_SIZE, node);
+ return -ENOMEM;
}
struct memmap_init_callback_data {
diff --git a/arch/ia64/mm/tlb.c b/arch/ia64/mm/tlb.c
index 9340bcb4f29c4ee0f0fa9868ae0571efff635d4a..5fc89aabdce1f8be105e8cb1e1805218cf9f77d9 100644
--- a/arch/ia64/mm/tlb.c
+++ b/arch/ia64/mm/tlb.c
@@ -61,8 +61,14 @@ mmu_context_init (void)
{
ia64_ctx.bitmap = memblock_alloc((ia64_ctx.max_ctx + 1) >> 3,
SMP_CACHE_BYTES);
+ if (!ia64_ctx.bitmap)
+ panic("%s: Failed to allocate %u bytes\n", __func__,
+ (ia64_ctx.max_ctx + 1) >> 3);
ia64_ctx.flushmap = memblock_alloc((ia64_ctx.max_ctx + 1) >> 3,
SMP_CACHE_BYTES);
+ if (!ia64_ctx.flushmap)
+ panic("%s: Failed to allocate %u bytes\n", __func__,
+ (ia64_ctx.max_ctx + 1) >> 3);
}
/*
diff --git a/arch/ia64/sn/kernel/io_common.c b/arch/ia64/sn/kernel/io_common.c
index 8df13d0d96fa30f25ec94040715c3e93978e1d00..d46847323ef6a64ee02c0f4aca2ed494e1c534c9 100644
--- a/arch/ia64/sn/kernel/io_common.c
+++ b/arch/ia64/sn/kernel/io_common.c
@@ -394,6 +394,9 @@ void __init hubdev_init_node(nodepda_t * npda, cnodeid_t node)
hubdev_info = (struct hubdev_info *)memblock_alloc_node(size,
SMP_CACHE_BYTES,
node);
+ if (!hubdev_info)
+ panic("%s: Failed to allocate %d bytes align=0x%x nid=%d\n",
+ __func__, size, SMP_CACHE_BYTES, node);
npda->pdinfo = (void *)hubdev_info;
}
diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c
index a6d40a2c5bffcc5b19a66311a832a5522af278de..e6a5049ef5031bcc702a4ba5a937618033221409 100644
--- a/arch/ia64/sn/kernel/setup.c
+++ b/arch/ia64/sn/kernel/setup.c
@@ -513,6 +513,10 @@ static void __init sn_init_pdas(char **cmdline_p)
nodepdaindr[cnode] =
memblock_alloc_node(sizeof(nodepda_t), SMP_CACHE_BYTES,
cnode);
+ if (!nodepdaindr[cnode])
+ panic("%s: Failed to allocate %lu bytes align=0x%x nid=%d\n",
+ __func__, sizeof(nodepda_t), SMP_CACHE_BYTES,
+ cnode);
memset(nodepdaindr[cnode]->phys_cpuid, -1,
sizeof(nodepdaindr[cnode]->phys_cpuid));
spin_lock_init(&nodepdaindr[cnode]->ptc_lock);
@@ -521,9 +525,15 @@ static void __init sn_init_pdas(char **cmdline_p)
/*
* Allocate & initialize nodepda for TIOs. For now, put them on node 0.
*/
- for (cnode = num_online_nodes(); cnode < num_cnodes; cnode++)
+ for (cnode = num_online_nodes(); cnode < num_cnodes; cnode++) {
nodepdaindr[cnode] =
memblock_alloc_node(sizeof(nodepda_t), SMP_CACHE_BYTES, 0);
+ if (!nodepdaindr[cnode])
+ panic("%s: Failed to allocate %lu bytes align=0x%x nid=%d\n",
+ __func__, sizeof(nodepda_t), SMP_CACHE_BYTES,
+ cnode);
+ }
+
/*
* Now copy the array of nodepda pointers to each nodepda.
diff --git a/arch/m68k/atari/stram.c b/arch/m68k/atari/stram.c
index 6ffc204eb07dec522ac8e6eae286c86948590ed1..6152f9f631d2a8f2f97a34578672e65af4227ae3 100644
--- a/arch/m68k/atari/stram.c
+++ b/arch/m68k/atari/stram.c
@@ -97,6 +97,10 @@ void __init atari_stram_reserve_pages(void *start_mem)
pr_debug("atari_stram pool: kernel in ST-RAM, using alloc_bootmem!\n");
stram_pool.start = (resource_size_t)memblock_alloc_low(pool_size,
PAGE_SIZE);
+ if (!stram_pool.start)
+ panic("%s: Failed to allocate %lu bytes align=%lx\n",
+ __func__, pool_size, PAGE_SIZE);
+
stram_pool.end = stram_pool.start + pool_size - 1;
request_resource(&iomem_resource, &stram_pool);
stram_virt_offset = 0;
diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c
index 933c33e76a4831a2148115025009e2ed57d34341..8868a4c9adaefb3914f0c775a4205504d391ec87 100644
--- a/arch/m68k/mm/init.c
+++ b/arch/m68k/mm/init.c
@@ -94,6 +94,9 @@ void __init paging_init(void)
high_memory = (void *) end_mem;
empty_zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+ if (!empty_zero_page)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
/*
* Set up SFC/DFC registers (user data space).
diff --git a/arch/m68k/mm/mcfmmu.c b/arch/m68k/mm/mcfmmu.c
index 0de4999a3810db9441b44251da67d537af90f682..6cb1e41d58d0088c01658b7564f1fe691f5211ad 100644
--- a/arch/m68k/mm/mcfmmu.c
+++ b/arch/m68k/mm/mcfmmu.c
@@ -44,7 +44,9 @@ void __init paging_init(void)
int i;
empty_zero_page = (void *) memblock_alloc(PAGE_SIZE, PAGE_SIZE);
- memset((void *) empty_zero_page, 0, PAGE_SIZE);
+ if (!empty_zero_page)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
pg_dir = swapper_pg_dir;
memset(swapper_pg_dir, 0, sizeof(swapper_pg_dir));
@@ -52,6 +54,9 @@ void __init paging_init(void)
size = num_pages * sizeof(pte_t);
size = (size + PAGE_SIZE) & ~(PAGE_SIZE-1);
next_pgtable = (unsigned long) memblock_alloc(size, PAGE_SIZE);
+ if (!next_pgtable)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, size, PAGE_SIZE);
bootmem_end = (next_pgtable + size + PAGE_SIZE) & PAGE_MASK;
pg_dir += PAGE_OFFSET >> PGDIR_SHIFT;
diff --git a/arch/m68k/mm/motorola.c b/arch/m68k/mm/motorola.c
index 3f3d0bf360910c0d45095a0ef51db604afe5b02b..356601bf96d947d8115beb6747976d721b440f8a 100644
--- a/arch/m68k/mm/motorola.c
+++ b/arch/m68k/mm/motorola.c
@@ -55,6 +55,9 @@ static pte_t * __init kernel_page_table(void)
pte_t *ptablep;
ptablep = (pte_t *)memblock_alloc_low(PAGE_SIZE, PAGE_SIZE);
+ if (!ptablep)
+ panic("%s: Failed to allocate %lu bytes align=%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
clear_page(ptablep);
__flush_page_to_ram(ptablep);
@@ -96,6 +99,9 @@ static pmd_t * __init kernel_ptr_table(void)
if (((unsigned long)last_pgtable & ~PAGE_MASK) == 0) {
last_pgtable = (pmd_t *)memblock_alloc_low(PAGE_SIZE,
PAGE_SIZE);
+ if (!last_pgtable)
+ panic("%s: Failed to allocate %lu bytes align=%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
clear_page(last_pgtable);
__flush_page_to_ram(last_pgtable);
@@ -278,6 +284,9 @@ void __init paging_init(void)
* to a couple of allocated pages
*/
empty_zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+ if (!empty_zero_page)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
/*
* Set up SFC/DFC registers
diff --git a/arch/m68k/mm/sun3mmu.c b/arch/m68k/mm/sun3mmu.c
index f736db48a2e1bad63ae15d0a1b30b86542b47d59..eca1c46bb90abff694a901e8c593461f90c24ca1 100644
--- a/arch/m68k/mm/sun3mmu.c
+++ b/arch/m68k/mm/sun3mmu.c
@@ -46,6 +46,9 @@ void __init paging_init(void)
unsigned long size;
empty_zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+ if (!empty_zero_page)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
address = PAGE_OFFSET;
pg_dir = swapper_pg_dir;
@@ -56,6 +59,9 @@ void __init paging_init(void)
size = (size + PAGE_SIZE) & ~(PAGE_SIZE-1);
next_pgtable = (unsigned long)memblock_alloc(size, PAGE_SIZE);
+ if (!next_pgtable)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, size, PAGE_SIZE);
bootmem_end = (next_pgtable + size + PAGE_SIZE) & PAGE_MASK;
/* Map whole memory from PAGE_OFFSET (0x0E000000) */
diff --git a/arch/m68k/sun3/sun3dvma.c b/arch/m68k/sun3/sun3dvma.c
index 4d64711d3d47410cead0940360885ccf22617cae..399f3d06125fe963fe7984273202cdcc55741715 100644
--- a/arch/m68k/sun3/sun3dvma.c
+++ b/arch/m68k/sun3/sun3dvma.c
@@ -269,6 +269,9 @@ void __init dvma_init(void)
iommu_use = memblock_alloc(IOMMU_TOTAL_ENTRIES * sizeof(unsigned long),
SMP_CACHE_BYTES);
+ if (!iommu_use)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ IOMMU_TOTAL_ENTRIES * sizeof(unsigned long));
dvma_unmap_iommu(DVMA_START, DVMA_SIZE);
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index b17fd8aafd64aabd3c667c81394a81ab6f3b8583..7e97d44f653801ddd8972320988aa376c8ccc2b3 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -363,8 +363,9 @@ void __init *early_get_page(void)
* Mem start + kernel_tlb -> here is limit
* because of mem mapping from head.S
*/
- return __va(memblock_alloc_base(PAGE_SIZE, PAGE_SIZE,
- memory_start + kernel_tlb));
+ return memblock_alloc_try_nid_raw(PAGE_SIZE, PAGE_SIZE,
+ MEMBLOCK_LOW_LIMIT, memory_start + kernel_tlb,
+ NUMA_NO_NODE);
}
#endif /* CONFIG_MMU */
@@ -373,12 +374,14 @@ void * __ref zalloc_maybe_bootmem(size_t size, gfp_t mask)
{
void *p;
- if (mem_init_done)
+ if (mem_init_done) {
p = kzalloc(size, mask);
- else {
+ } else {
p = memblock_alloc(size, SMP_CACHE_BYTES);
- if (p)
- memset(p, 0, size);
+ if (!p)
+ panic("%s: Failed to allocate %zu bytes\n",
+ __func__, size);
}
+
return p;
}
diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c
index e8eb60ed99f2a8f877b0cdf2bc673e1ee643f40b..11d5a4e90736a6747dd0e88226543dadac136395 100644
--- a/arch/mips/cavium-octeon/dma-octeon.c
+++ b/arch/mips/cavium-octeon/dma-octeon.c
@@ -245,6 +245,9 @@ void __init plat_swiotlb_setup(void)
swiotlbsize = swiotlb_nslabs << IO_TLB_SHIFT;
octeon_swiotlb = memblock_alloc_low(swiotlbsize, PAGE_SIZE);
+ if (!octeon_swiotlb)
+ panic("%s: Failed to allocate %zu bytes align=%lx\n",
+ __func__, swiotlbsize, PAGE_SIZE);
if (swiotlb_init_with_tbl(octeon_swiotlb, swiotlb_nslabs, 1) == -ENOMEM)
panic("Cannot allocate SWIOTLB buffer");
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 5151532ad9590b522171bae0d41d88fd66af43fb..8d1dc6c71173bbddb837eaeb891c8387613864ba 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -919,6 +919,9 @@ static void __init resource_init(void)
end = HIGHMEM_START - 1;
res = memblock_alloc(sizeof(struct resource), SMP_CACHE_BYTES);
+ if (!res)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ sizeof(struct resource));
res->start = start;
res->end = end;
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 995249be64f182afb9d8622ecf12d6c258a074ae..d7b9c54e97f6c30386459a50cc3e9d82adc2bfa3 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -2293,7 +2293,10 @@ void __init trap_init(void)
phys_addr_t ebase_pa;
ebase = (unsigned long)
- memblock_alloc_from(size, 1 << fls(size), 0);
+ memblock_alloc(size, 1 << fls(size));
+ if (!ebase)
+ panic("%s: Failed to allocate %lu bytes align=0x%x\n",
+ __func__, size, 1 << fls(size));
/*
* Try to ensure ebase resides in KSeg0 if possible.
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index c3b45e248806a045e48ed251c20d28cff31efc09..bbb196ad5f26b08e07b7e808dd905e0818f6bef8 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -252,6 +252,11 @@ void __init fixrange_init(unsigned long start, unsigned long end,
if (pmd_none(*pmd)) {
pte = (pte_t *) memblock_alloc_low(PAGE_SIZE,
PAGE_SIZE);
+ if (!pte)
+ panic("%s: Failed to allocate %lu bytes align=%lx\n",
+ __func__, PAGE_SIZE,
+ PAGE_SIZE);
+
set_pmd(pmd, __pmd((unsigned long)pte));
BUG_ON(pte != pte_offset_kernel(pmd, 0));
}
diff --git a/arch/nds32/mm/init.c b/arch/nds32/mm/init.c
index 253f79fc7196162fbf2cc05d7041da68fa87e934..1d03633f89a9f3e7b953db45001cec2839c25deb 100644
--- a/arch/nds32/mm/init.c
+++ b/arch/nds32/mm/init.c
@@ -78,8 +78,10 @@ static void __init map_ram(void)
}
/* Alloc one page for holding PTE's... */
- pte = (pte_t *) __va(memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE));
- memset(pte, 0, PAGE_SIZE);
+ pte = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+ if (!pte)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
set_pmd(pme, __pmd(__pa(pte) + _PAGE_KERNEL_TABLE));
/* Fill the newly allocated page with PTE'S */
@@ -111,8 +113,10 @@ static void __init fixedrange_init(void)
pgd = swapper_pg_dir + pgd_index(vaddr);
pud = pud_offset(pgd, vaddr);
pmd = pmd_offset(pud, vaddr);
- fixmap_pmd_p = (pmd_t *) __va(memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE));
- memset(fixmap_pmd_p, 0, PAGE_SIZE);
+ fixmap_pmd_p = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+ if (!fixmap_pmd_p)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
set_pmd(pmd, __pmd(__pa(fixmap_pmd_p) + _PAGE_KERNEL_TABLE));
#ifdef CONFIG_HIGHMEM
@@ -124,8 +128,10 @@ static void __init fixedrange_init(void)
pgd = swapper_pg_dir + pgd_index(vaddr);
pud = pud_offset(pgd, vaddr);
pmd = pmd_offset(pud, vaddr);
- pte = (pte_t *) __va(memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE));
- memset(pte, 0, PAGE_SIZE);
+ pte = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+ if (!pte)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
set_pmd(pmd, __pmd(__pa(pte) + _PAGE_KERNEL_TABLE));
pkmap_page_table = pte;
#endif /* CONFIG_HIGHMEM */
@@ -150,8 +156,10 @@ void __init paging_init(void)
fixedrange_init();
/* allocate space for empty_zero_page */
- zero_page = __va(memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE));
- memset(zero_page, 0, PAGE_SIZE);
+ zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+ if (!zero_page)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
zone_sizes_init();
empty_zero_page = virt_to_page(zero_page);
diff --git a/arch/nios2/mm/fault.c b/arch/nios2/mm/fault.c
index cf76fa3f457bd2385cc9d0a6f6baffd73a388d5c..6a2e716b959f7e9e8e962e5c901e0770bca22485 100644
--- a/arch/nios2/mm/fault.c
+++ b/arch/nios2/mm/fault.c
@@ -24,7 +24,6 @@
#include <linux/mm.h>
#include <linux/extable.h>
#include <linux/uaccess.h>
-#include <linux/ptrace.h>
#include <asm/mmu_context.h>
#include <asm/traps.h>
diff --git a/arch/openrisc/mm/init.c b/arch/openrisc/mm/init.c
index d157310eb377a7d574a03a386641b2fae46027cb..caeb4184e8a6bb030f93b647e0cbd076b8918a48 100644
--- a/arch/openrisc/mm/init.c
+++ b/arch/openrisc/mm/init.c
@@ -105,7 +105,10 @@ static void __init map_ram(void)
}
/* Alloc one page for holding PTE's... */
- pte = (pte_t *) __va(memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE));
+ pte = memblock_alloc_raw(PAGE_SIZE, PAGE_SIZE);
+ if (!pte)
+ panic("%s: Failed to allocate page for PTEs\n",
+ __func__);
set_pmd(pme, __pmd(_KERNPG_TABLE + __pa(pte)));
/* Fill the newly allocated page with PTE'S */
diff --git a/arch/openrisc/mm/ioremap.c b/arch/openrisc/mm/ioremap.c
index 270d1c9bc0d66966cc1aa64e7f63d0d67cfe5c8f..a8509950dbbc8da4e7d10ed0b14b8bfdc5ab2ab2 100644
--- a/arch/openrisc/mm/ioremap.c
+++ b/arch/openrisc/mm/ioremap.c
@@ -123,12 +123,13 @@ pte_t __ref *pte_alloc_one_kernel(struct mm_struct *mm)
pte_t *pte;
if (likely(mem_init_done)) {
- pte = (pte_t *) __get_free_page(GFP_KERNEL);
+ pte = (pte_t *)get_zeroed_page(GFP_KERNEL);
} else {
- pte = (pte_t *) __va(memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE));
+ pte = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+ if (!pte)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
}
- if (pte)
- clear_page(pte);
return pte;
}
diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c
index e49bd5efcfe66b5092f241bca00a2688ce5ac396..c66fd3ce64780601f08d4353186fee18f0ebfca1 100644
--- a/arch/powerpc/kernel/dt_cpu_ftrs.c
+++ b/arch/powerpc/kernel/dt_cpu_ftrs.c
@@ -810,7 +810,6 @@ static int __init process_cpufeatures_node(unsigned long node,
int len;
f = &dt_cpu_features[i];
- memset(f, 0, sizeof(struct dt_cpu_feature));
f->node = node;
@@ -1005,7 +1004,12 @@ static int __init dt_cpu_ftrs_scan_callback(unsigned long node, const char
/* Count and allocate space for cpu features */
of_scan_flat_dt_subnodes(node, count_cpufeatures_subnodes,
&nr_dt_cpu_features);
- dt_cpu_features = __va(memblock_phys_alloc(sizeof(struct dt_cpu_feature) * nr_dt_cpu_features, PAGE_SIZE));
+ dt_cpu_features = memblock_alloc(sizeof(struct dt_cpu_feature) * nr_dt_cpu_features, PAGE_SIZE);
+ if (!dt_cpu_features)
+ panic("%s: Failed to allocate %zu bytes align=0x%lx\n",
+ __func__,
+ sizeof(struct dt_cpu_feature) * nr_dt_cpu_features,
+ PAGE_SIZE);
cpufeatures_setup_start(isa);
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
index b8480127793dbc8f261e2254822336764741dacc..e7382abee86849f136a6337eedf58a417dba6ea9 100644
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -28,7 +28,7 @@
static void *__init alloc_paca_data(unsigned long size, unsigned long align,
unsigned long limit, int cpu)
{
- unsigned long pa;
+ void *ptr;
int nid;
/*
@@ -43,17 +43,15 @@ static void *__init alloc_paca_data(unsigned long size, unsigned long align,
nid = early_cpu_to_node(cpu);
}
- pa = memblock_alloc_base_nid(size, align, limit, nid, MEMBLOCK_NONE);
- if (!pa) {
- pa = memblock_alloc_base(size, align, limit);
- if (!pa)
- panic("cannot allocate paca data");
- }
+ ptr = memblock_alloc_try_nid(size, align, MEMBLOCK_LOW_LIMIT,
+ limit, nid);
+ if (!ptr)
+ panic("cannot allocate paca data");
if (cpu == boot_cpuid)
memblock_set_bottom_up(false);
- return __va(pa);
+ return ptr;
}
#ifdef CONFIG_PPC_PSERIES
@@ -119,7 +117,6 @@ static struct slb_shadow * __init new_slb_shadow(int cpu, unsigned long limit)
}
s = alloc_paca_data(sizeof(*s), L1_CACHE_BYTES, limit, cpu);
- memset(s, 0, sizeof(*s));
s->persistent = cpu_to_be32(SLB_NUM_BOLTED);
s->buffer_length = cpu_to_be32(sizeof(*s));
@@ -199,7 +196,11 @@ void __init allocate_paca_ptrs(void)
paca_nr_cpu_ids = nr_cpu_ids;
paca_ptrs_size = sizeof(struct paca_struct *) * nr_cpu_ids;
- paca_ptrs = __va(memblock_phys_alloc(paca_ptrs_size, SMP_CACHE_BYTES));
+ paca_ptrs = memblock_alloc_raw(paca_ptrs_size, SMP_CACHE_BYTES);
+ if (!paca_ptrs)
+ panic("Failed to allocate %d bytes for paca pointers\n",
+ paca_ptrs_size);
+
memset(paca_ptrs, 0x88, paca_ptrs_size);
}
@@ -223,7 +224,6 @@ void __init allocate_paca(int cpu)
paca = alloc_paca_data(sizeof(struct paca_struct), L1_CACHE_BYTES,
limit, cpu);
paca_ptrs[cpu] = paca;
- memset(paca, 0, sizeof(struct paca_struct));
initialise_paca(paca, cpu);
#ifdef CONFIG_PPC_PSERIES
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index d3f04f2d824944d9947993b00fa8aec0bb0fdf08..0417fda13636aef01b6f962d56e48b683a6b0282 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -205,6 +205,9 @@ pci_create_OF_bus_map(void)
of_prop = memblock_alloc(sizeof(struct property) + 256,
SMP_CACHE_BYTES);
+ if (!of_prop)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ sizeof(struct property) + 256);
dn = of_find_node_by_path("/");
if (dn) {
memset(of_prop, -1, sizeof(struct property) + 256);
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index e97aaf201d67ab27f4effd1315c20372cf618662..c0ed4fa0b9d36d0f36a8cb15734580ece98edd35 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -127,7 +127,10 @@ static void __init move_device_tree(void)
if ((memory_limit && (start + size) > PHYSICAL_START + memory_limit) ||
!memblock_is_memory(start + size - 1) ||
overlaps_crashkernel(start, size) || overlaps_initrd(start, size)) {
- p = __va(memblock_phys_alloc(size, PAGE_SIZE));
+ p = memblock_alloc_raw(size, PAGE_SIZE);
+ if (!p)
+ panic("Failed to allocate %lu bytes to move device tree\n",
+ size);
memcpy(p, initial_boot_params, size);
initial_boot_params = p;
DBG("Moved device tree to 0x%px\n", p);
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index de35bd8f047fc315e29058223e71bc731bafc6e7..fbc676160adf76f2f007a91685678faf9cad8a54 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -1187,7 +1187,11 @@ void __init rtas_initialize(void)
ibm_suspend_me_token = rtas_token("ibm,suspend-me");
}
#endif
- rtas_rmo_buf = memblock_alloc_base(RTAS_RMOBUF_MAX, PAGE_SIZE, rtas_region);
+ rtas_rmo_buf = memblock_phys_alloc_range(RTAS_RMOBUF_MAX, PAGE_SIZE,
+ 0, rtas_region);
+ if (!rtas_rmo_buf)
+ panic("ERROR: RTAS: Failed to allocate %lx bytes below %pa\n",
+ PAGE_SIZE, &rtas_region);
#ifdef CONFIG_RTAS_ERROR_LOGGING
rtas_last_error_token = rtas_token("rtas-last-error");
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index e7534f306c8e02c389700c7c7c03c27d161cbb82..2e5dfb6e0823999d967eadfb9b569d396192f910 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -459,8 +459,11 @@ void __init smp_setup_cpu_maps(void)
DBG("smp_setup_cpu_maps()\n");
- cpu_to_phys_id = __va(memblock_phys_alloc(nr_cpu_ids * sizeof(u32), __alignof__(u32)));
- memset(cpu_to_phys_id, 0, nr_cpu_ids * sizeof(u32));
+ cpu_to_phys_id = memblock_alloc(nr_cpu_ids * sizeof(u32),
+ __alignof__(u32));
+ if (!cpu_to_phys_id)
+ panic("%s: Failed to allocate %zu bytes align=0x%zx\n",
+ __func__, nr_cpu_ids * sizeof(u32), __alignof__(u32));
for_each_node_by_type(dn, "cpu") {
const __be32 *intserv;
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index daa361fc6a24595b9f583a44c01f68e2b61b89f2..ba404dd9ce1d88809e0a6e70f0decc286caf576a 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -902,8 +902,13 @@ static void __ref init_fallback_flush(void)
* hardware prefetch runoff. We don't have a recipe for load patterns to
* reliably avoid the prefetcher.
*/
- l1d_flush_fallback_area = __va(memblock_alloc_base(l1d_size * 2, l1d_size, limit));
- memset(l1d_flush_fallback_area, 0, l1d_size * 2);
+ l1d_flush_fallback_area = memblock_alloc_try_nid(l1d_size * 2,
+ l1d_size, MEMBLOCK_LOW_LIMIT,
+ limit, NUMA_NO_NODE);
+ if (!l1d_flush_fallback_area)
+ panic("%s: Failed to allocate %llu bytes align=0x%llx max_addr=%pa\n",
+ __func__, l1d_size * 2, l1d_size, &limit);
+
for_each_possible_cpu(cpu) {
struct paca_struct *paca = paca_ptrs[cpu];
diff --git a/arch/powerpc/lib/alloc.c b/arch/powerpc/lib/alloc.c
index dedf88a76f58cc81c0de00bbb6e8e96420f78094..ce180870bd52f700a71ecb09ac65d1d5040baf36 100644
--- a/arch/powerpc/lib/alloc.c
+++ b/arch/powerpc/lib/alloc.c
@@ -15,6 +15,9 @@ void * __ref zalloc_maybe_bootmem(size_t size, gfp_t mask)
p = kzalloc(size, mask);
else {
p = memblock_alloc(size, SMP_CACHE_BYTES);
+ if (!p)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ size);
}
return p;
}
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index 4aa0797000f7fcab00d75c93e393915c81aa4841..0a4f939a8161e810585a95faae113e8e37354bc1 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -882,8 +882,12 @@ static void __init htab_initialize(void)
}
#endif /* CONFIG_PPC_CELL */
- table = memblock_alloc_base(htab_size_bytes, htab_size_bytes,
- limit);
+ table = memblock_phys_alloc_range(htab_size_bytes,
+ htab_size_bytes,
+ 0, limit);
+ if (!table)
+ panic("ERROR: Failed to allocate %pa bytes below %pa\n",
+ &htab_size_bytes, &limit);
DBG("Hash table allocated at %lx, size: %lx\n", table,
htab_size_bytes);
@@ -908,9 +912,12 @@ static void __init htab_initialize(void)
#ifdef CONFIG_DEBUG_PAGEALLOC
if (debug_pagealloc_enabled()) {
linear_map_hash_count = memblock_end_of_DRAM() >> PAGE_SHIFT;
- linear_map_hash_slots = __va(memblock_alloc_base(
- linear_map_hash_count, 1, ppc64_rma_size));
- memset(linear_map_hash_slots, 0, linear_map_hash_count);
+ linear_map_hash_slots = memblock_alloc_try_nid(
+ linear_map_hash_count, 1, MEMBLOCK_LOW_LIMIT,
+ ppc64_rma_size, NUMA_NO_NODE);
+ if (!linear_map_hash_slots)
+ panic("%s: Failed to allocate %lu bytes max_addr=%pa\n",
+ __func__, linear_map_hash_count, &ppc64_rma_size);
}
#endif /* CONFIG_DEBUG_PAGEALLOC */
diff --git a/arch/powerpc/mm/mmu_context_nohash.c b/arch/powerpc/mm/mmu_context_nohash.c
index 22d71a58167f55bb69e7c98819925c61ff565b1d..1945c5f19f5efb312084664a5531161d92005f4e 100644
--- a/arch/powerpc/mm/mmu_context_nohash.c
+++ b/arch/powerpc/mm/mmu_context_nohash.c
@@ -461,10 +461,19 @@ void __init mmu_context_init(void)
* Allocate the maps used by context management
*/
context_map = memblock_alloc(CTX_MAP_SIZE, SMP_CACHE_BYTES);
+ if (!context_map)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ CTX_MAP_SIZE);
context_mm = memblock_alloc(sizeof(void *) * (LAST_CONTEXT + 1),
SMP_CACHE_BYTES);
+ if (!context_mm)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ sizeof(void *) * (LAST_CONTEXT + 1));
#ifdef CONFIG_SMP
stale_map[boot_cpuid] = memblock_alloc(CTX_MAP_SIZE, SMP_CACHE_BYTES);
+ if (!stale_map[boot_cpuid])
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ CTX_MAP_SIZE);
cpuhp_setup_state_nocalls(CPUHP_POWERPC_MMU_CTX_PREPARE,
"powerpc/mmu/ctx:prepare",
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index ac49e4158e50880ee5bdc86af956f728b533f250..f976676004ad048606e396ebe9b395dcb28835d0 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -788,6 +788,10 @@ static void __init setup_node_data(int nid, u64 start_pfn, u64 end_pfn)
int tnid;
nd_pa = memblock_phys_alloc_try_nid(nd_size, SMP_CACHE_BYTES, nid);
+ if (!nd_pa)
+ panic("Cannot allocate %zu bytes for node %d data\n",
+ nd_size, nid);
+
nd = __va(nd_pa);
/* report and initialize */
diff --git a/arch/powerpc/mm/pgtable-book3e.c b/arch/powerpc/mm/pgtable-book3e.c
index e0ccf36714b2330e2d93ff38d9ab443222a30b7e..1032ef7aaf62a551b28de439332d451d8f807158 100644
--- a/arch/powerpc/mm/pgtable-book3e.c
+++ b/arch/powerpc/mm/pgtable-book3e.c
@@ -57,12 +57,16 @@ void vmemmap_remove_mapping(unsigned long start,
static __ref void *early_alloc_pgtable(unsigned long size)
{
- void *pt;
+ void *ptr;
- pt = __va(memblock_alloc_base(size, size, __pa(MAX_DMA_ADDRESS)));
- memset(pt, 0, size);
+ ptr = memblock_alloc_try_nid(size, size, MEMBLOCK_LOW_LIMIT,
+ __pa(MAX_DMA_ADDRESS), NUMA_NO_NODE);
- return pt;
+ if (!ptr)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx max_addr=%lx\n",
+ __func__, size, size, __pa(MAX_DMA_ADDRESS));
+
+ return ptr;
}
/*
diff --git a/arch/powerpc/mm/pgtable-book3s64.c b/arch/powerpc/mm/pgtable-book3s64.c
index e7da590c7a786f5325f17f7e1abc6cb112bebf80..a4341aba0af4dab36898cb5f62c1f8ae629c70b6 100644
--- a/arch/powerpc/mm/pgtable-book3s64.c
+++ b/arch/powerpc/mm/pgtable-book3s64.c
@@ -195,11 +195,11 @@ void __init mmu_partition_table_init(void)
unsigned long ptcr;
BUILD_BUG_ON_MSG((PATB_SIZE_SHIFT > 36), "Partition table size too large.");
- partition_tb = __va(memblock_alloc_base(patb_size, patb_size,
- MEMBLOCK_ALLOC_ANYWHERE));
-
/* Initialize the Partition Table with no entries */
- memset((void *)partition_tb, 0, patb_size);
+ partition_tb = memblock_alloc(patb_size, patb_size);
+ if (!partition_tb)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, patb_size, patb_size);
/*
* update partition table control register,
diff --git a/arch/powerpc/mm/pgtable-radix.c b/arch/powerpc/mm/pgtable-radix.c
index dced3cd241c2920d68ae1cda6919a4195e840a85..154472a28c77b953bbf75996c3cdb017172d79a1 100644
--- a/arch/powerpc/mm/pgtable-radix.c
+++ b/arch/powerpc/mm/pgtable-radix.c
@@ -51,26 +51,22 @@ static int native_register_process_table(unsigned long base, unsigned long pg_sz
static __ref void *early_alloc_pgtable(unsigned long size, int nid,
unsigned long region_start, unsigned long region_end)
{
- unsigned long pa = 0;
- void *pt;
+ phys_addr_t min_addr = MEMBLOCK_LOW_LIMIT;
+ phys_addr_t max_addr = MEMBLOCK_ALLOC_ANYWHERE;
+ void *ptr;
- if (region_start || region_end) /* has region hint */
- pa = memblock_alloc_range(size, size, region_start, region_end,
- MEMBLOCK_NONE);
- else if (nid != -1) /* has node hint */
- pa = memblock_alloc_base_nid(size, size,
- MEMBLOCK_ALLOC_ANYWHERE,
- nid, MEMBLOCK_NONE);
+ if (region_start)
+ min_addr = region_start;
+ if (region_end)
+ max_addr = region_end;
- if (!pa)
- pa = memblock_alloc_base(size, size, MEMBLOCK_ALLOC_ANYWHERE);
+ ptr = memblock_alloc_try_nid(size, size, min_addr, max_addr, nid);
- BUG_ON(!pa);
+ if (!ptr)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx nid=%d from=%pa max_addr=%pa\n",
+ __func__, size, size, nid, &min_addr, &max_addr);
- pt = __va(pa);
- memset(pt, 0, size);
-
- return pt;
+ return ptr;
}
static int early_map_kernel_page(unsigned long ea, unsigned long pa,
diff --git a/arch/powerpc/mm/ppc_mmu_32.c b/arch/powerpc/mm/ppc_mmu_32.c
index 2d5b0d50fb311cb61fe195b8ace851677a7a4f61..f29d2f118b444aa6b060bcfa6fab6fb0bf321949 100644
--- a/arch/powerpc/mm/ppc_mmu_32.c
+++ b/arch/powerpc/mm/ppc_mmu_32.c
@@ -339,8 +339,10 @@ void __init MMU_init_hw(void)
* Find some memory for the hash table.
*/
if ( ppc_md.progress ) ppc_md.progress("hash:find piece", 0x322);
- Hash = __va(memblock_phys_alloc(Hash_size, Hash_size));
- memset(Hash, 0, Hash_size);
+ Hash = memblock_alloc(Hash_size, Hash_size);
+ if (!Hash)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, Hash_size, Hash_size);
_SDR1 = __pa(Hash) | SDR1_LOW_BITS;
Hash_end = (struct hash_pte *) ((unsigned long)Hash + Hash_size);
diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c
index bbeb6a1b03938fa73fc03096307aa2bef89f9bd1..044c6089462c02739b8241d659906342811ab447 100644
--- a/arch/powerpc/platforms/pasemi/iommu.c
+++ b/arch/powerpc/platforms/pasemi/iommu.c
@@ -208,7 +208,12 @@ static int __init iob_init(struct device_node *dn)
pr_debug(" -> %s\n", __func__);
/* For 2G space, 8x64 pages (2^21 bytes) is max total l2 size */
- iob_l2_base = (u32 *)__va(memblock_alloc_base(1UL<<21, 1UL<<21, 0x80000000));
+ iob_l2_base = memblock_alloc_try_nid_raw(1UL << 21, 1UL << 21,
+ MEMBLOCK_LOW_LIMIT, 0x80000000,
+ NUMA_NO_NODE);
+ if (!iob_l2_base)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx max_addr=%x\n",
+ __func__, 1UL << 21, 1UL << 21, 0x80000000);
pr_info("IOBMAP L2 allocated at: %p\n", iob_l2_base);
@@ -269,4 +274,3 @@ void __init iommu_init_early_pasemi(void)
pasemi_pci_controller_ops.dma_bus_setup = pci_dma_bus_setup_pasemi;
set_pci_dma_ops(&dma_iommu_ops);
}
-
diff --git a/arch/powerpc/platforms/powermac/nvram.c b/arch/powerpc/platforms/powermac/nvram.c
index 9360cdc408c18078b1cab9c512964fbd5e748fc8..86989c5779c2c4abc0e724c8213460d1d5484e62 100644
--- a/arch/powerpc/platforms/powermac/nvram.c
+++ b/arch/powerpc/platforms/powermac/nvram.c
@@ -519,6 +519,9 @@ static int __init core99_nvram_setup(struct device_node *dp, unsigned long addr)
return -EINVAL;
}
nvram_image = memblock_alloc(NVRAM_SIZE, SMP_CACHE_BYTES);
+ if (!nvram_image)
+ panic("%s: Failed to allocate %u bytes\n", __func__,
+ NVRAM_SIZE);
nvram_data = ioremap(addr, NVRAM_SIZE*2);
nvram_naddrs = 1; /* Make sure we get the correct case */
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 2ca3ba95f8aaf1e4e50ddf8518edea390ed7b757..2b0eca104f86a2649b96df900068e3b334d28d1d 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -170,8 +170,10 @@ int __init early_init_dt_scan_recoverable_ranges(unsigned long node,
/*
* Allocate a buffer to hold the MC recoverable ranges.
*/
- mc_recoverable_range =__va(memblock_phys_alloc(size, __alignof__(u64)));
- memset(mc_recoverable_range, 0, size);
+ mc_recoverable_range = memblock_alloc(size, __alignof__(u64));
+ if (!mc_recoverable_range)
+ panic("%s: Failed to allocate %u bytes align=0x%lx\n",
+ __func__, size, __alignof__(u64));
for (i = 0; i < mc_recoverable_range_len; i++) {
mc_recoverable_range[i].start_addr =
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index fa6af52b5219f309a3451589a341fecb3c83edf5..3ead4c237ed0ec9254035f133b9e70fec9951b29 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -3657,6 +3657,9 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
pr_debug(" PHB-ID : 0x%016llx\n", phb_id);
phb = memblock_alloc(sizeof(*phb), SMP_CACHE_BYTES);
+ if (!phb)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ sizeof(*phb));
/* Allocate PCI controller */
phb->hose = hose = pcibios_alloc_controller(np);
@@ -3703,6 +3706,9 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
phb->diag_data_size = PNV_PCI_DIAG_BUF_SIZE;
phb->diag_data = memblock_alloc(phb->diag_data_size, SMP_CACHE_BYTES);
+ if (!phb->diag_data)
+ panic("%s: Failed to allocate %u bytes\n", __func__,
+ phb->diag_data_size);
/* Parse 32-bit and IO ranges (if any) */
pci_process_bridge_OF_ranges(hose, np, !hose->global_number);
@@ -3762,6 +3768,8 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
pemap_off = size;
size += phb->ioda.total_pe_num * sizeof(struct pnv_ioda_pe);
aux = memblock_alloc(size, SMP_CACHE_BYTES);
+ if (!aux)
+ panic("%s: Failed to allocate %lu bytes\n", __func__, size);
phb->ioda.pe_alloc = aux;
phb->ioda.m64_segmap = aux + m64map_off;
phb->ioda.m32_segmap = aux + m32map_off;
diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c
index 658bfab3350b928493ce0bf2b435bc2d602923cd..4ce5458eb0f8909128b60b9c1deb8934d5815897 100644
--- a/arch/powerpc/platforms/ps3/setup.c
+++ b/arch/powerpc/platforms/ps3/setup.c
@@ -127,6 +127,9 @@ static void __init prealloc(struct ps3_prealloc *p)
return;
p->address = memblock_alloc(p->size, p->align);
+ if (!p->address)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, p->size, p->align);
printk(KERN_INFO "%s: %lu bytes at %p\n", p->name, p->size,
p->address);
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 41f62ca27c63563b8ef00db4cdd9af0bbb69628f..e4f0dfd4ae33458f6a4a9450b3df9c42c55a26c1 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -130,8 +130,13 @@ static void __init fwnmi_init(void)
* It will be used in real mode mce handler, hence it needs to be
* below RMA.
*/
- mce_data_buf = __va(memblock_alloc_base(RTAS_ERROR_LOG_MAX * nr_cpus,
- RTAS_ERROR_LOG_MAX, ppc64_rma_size));
+ mce_data_buf = memblock_alloc_try_nid_raw(RTAS_ERROR_LOG_MAX * nr_cpus,
+ RTAS_ERROR_LOG_MAX, MEMBLOCK_LOW_LIMIT,
+ ppc64_rma_size, NUMA_NO_NODE);
+ if (!mce_data_buf)
+ panic("Failed to allocate %d bytes below %pa for MCE buffer\n",
+ RTAS_ERROR_LOG_MAX * nr_cpus, &ppc64_rma_size);
+
for_each_possible_cpu(i) {
paca_ptrs[i]->mce_data_buf = mce_data_buf +
(RTAS_ERROR_LOG_MAX * i);
@@ -140,8 +145,13 @@ static void __init fwnmi_init(void)
#ifdef CONFIG_PPC_BOOK3S_64
/* Allocate per cpu slb area to save old slb contents during MCE */
size = sizeof(struct slb_entry) * mmu_slb_size * nr_cpus;
- slb_ptr = __va(memblock_alloc_base(size, sizeof(struct slb_entry),
- ppc64_rma_size));
+ slb_ptr = memblock_alloc_try_nid_raw(size, sizeof(struct slb_entry),
+ MEMBLOCK_LOW_LIMIT, ppc64_rma_size,
+ NUMA_NO_NODE);
+ if (!slb_ptr)
+ panic("Failed to allocate %zu bytes below %pa for slb area\n",
+ size, &ppc64_rma_size);
+
for_each_possible_cpu(i)
paca_ptrs[i]->mce_faulty_slbs = slb_ptr + (mmu_slb_size * i);
#endif
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index 809797dbe16908869f4de34b1b899e55da9a248b..2a751795ec1eb2dcdfbcd40c9ff4a1bd6624deb7 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -251,8 +251,11 @@ static void allocate_dart(void)
* 16MB (1 << 24) alignment. We allocate a full 16Mb chuck since we
* will blow up an entire large page anyway in the kernel mapping.
*/
- dart_tablebase = __va(memblock_alloc_base(1UL<<24,
- 1UL<<24, 0x80000000L));
+ dart_tablebase = memblock_alloc_try_nid_raw(SZ_16M, SZ_16M,
+ MEMBLOCK_LOW_LIMIT, SZ_2G,
+ NUMA_NO_NODE);
+ if (!dart_tablebase)
+ panic("Failed to allocate 16MB below 2GB for DART table\n");
/* There is no point scanning the DART space for leaks*/
kmemleak_no_scan((void *)dart_tablebase);
@@ -262,6 +265,9 @@ static void allocate_dart(void)
* prefetching into invalid pages and corrupting data
*/
tmp = memblock_phys_alloc(DART_PAGE_SIZE, DART_PAGE_SIZE);
+ if (!tmp)
+ panic("DART: table allocation failed\n");
+
dart_emptyval = DARTMAP_VALID | ((tmp >> DART_PAGE_SHIFT) &
DARTMAP_RPNMASK);
diff --git a/arch/powerpc/sysdev/msi_bitmap.c b/arch/powerpc/sysdev/msi_bitmap.c
index d45450f6666a9966e63eb15c74ed5cb89a9ff98c..51a679a1c40355819360ea985adb29c4a317f0cb 100644
--- a/arch/powerpc/sysdev/msi_bitmap.c
+++ b/arch/powerpc/sysdev/msi_bitmap.c
@@ -129,6 +129,9 @@ int __ref msi_bitmap_alloc(struct msi_bitmap *bmp, unsigned int irq_count,
bmp->bitmap = kzalloc(size, GFP_KERNEL);
else {
bmp->bitmap = memblock_alloc(size, SMP_CACHE_BYTES);
+ if (!bmp->bitmap)
+ panic("%s: Failed to allocate %u bytes\n", __func__,
+ size);
/* the bitmap won't be freed from memblock allocator */
kmemleak_not_leak(bmp->bitmap);
}
diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c
index 97eae387186875ea834c635d0608e49658bf355a..f96a5857bbfde04d4ed7fe59b0d0900c7a916a1c 100644
--- a/arch/s390/kernel/crash_dump.c
+++ b/arch/s390/kernel/crash_dump.c
@@ -61,6 +61,9 @@ struct save_area * __init save_area_alloc(bool is_boot_cpu)
struct save_area *sa;
sa = (void *) memblock_phys_alloc(sizeof(*sa), 8);
+ if (!sa)
+ panic("Failed to allocate save area\n");
+
if (is_boot_cpu)
list_add(&sa->list, &dump_save_areas);
else
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 12934e8fbb9194ca51c6b775e8339088c281a3c4..2c642af526ce83658504e50b7d95700086589bd2 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -378,6 +378,10 @@ static void __init setup_lowcore_dat_off(void)
*/
BUILD_BUG_ON(sizeof(struct lowcore) != LC_PAGES * PAGE_SIZE);
lc = memblock_alloc_low(sizeof(*lc), sizeof(*lc));
+ if (!lc)
+ panic("%s: Failed to allocate %zu bytes align=%zx\n",
+ __func__, sizeof(*lc), sizeof(*lc));
+
lc->restart_psw.mask = PSW_KERNEL_BITS;
lc->restart_psw.addr = (unsigned long) restart_int_handler;
lc->external_new_psw.mask = PSW_KERNEL_BITS | PSW_MASK_MCHECK;
@@ -419,6 +423,9 @@ static void __init setup_lowcore_dat_off(void)
* all CPUs in cast *one* of them does a PSW restart.
*/
restart_stack = memblock_alloc(THREAD_SIZE, THREAD_SIZE);
+ if (!restart_stack)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, THREAD_SIZE, THREAD_SIZE);
restart_stack += STACK_INIT_OFFSET;
/*
@@ -495,6 +502,9 @@ static void __init setup_resources(void)
for_each_memblock(memory, reg) {
res = memblock_alloc(sizeof(*res), 8);
+ if (!res)
+ panic("%s: Failed to allocate %zu bytes align=0x%x\n",
+ __func__, sizeof(*res), 8);
res->flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM;
res->name = "System RAM";
@@ -509,6 +519,9 @@ static void __init setup_resources(void)
continue;
if (std_res->end > res->end) {
sub_res = memblock_alloc(sizeof(*sub_res), 8);
+ if (!sub_res)
+ panic("%s: Failed to allocate %zu bytes align=0x%x\n",
+ __func__, sizeof(*sub_res), 8);
*sub_res = *std_res;
sub_res->end = res->end;
std_res->start = res->end + 1;
@@ -966,6 +979,9 @@ static void __init setup_randomness(void)
vmms = (struct sysinfo_3_2_2 *) memblock_phys_alloc(PAGE_SIZE,
PAGE_SIZE);
+ if (!vmms)
+ panic("Failed to allocate memory for sysinfo structure\n");
+
if (stsi(vmms, 3, 2, 2) == 0 && vmms->count)
add_device_randomness(&vmms->vm, sizeof(vmms->vm[0]) * vmms->count);
memblock_free((unsigned long) vmms, PAGE_SIZE);
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index b198ece2aad63d70f58b2acde1c280ce5534cf7a..3fe1c77c361b98a9a4443bf1a2941f486d024030 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -656,7 +656,11 @@ void __init smp_save_dump_cpus(void)
/* No previous system present, normal boot. */
return;
/* Allocate a page as dumping area for the store status sigps */
- page = memblock_alloc_base(PAGE_SIZE, PAGE_SIZE, 1UL << 31);
+ page = memblock_phys_alloc_range(PAGE_SIZE, PAGE_SIZE, 0, 1UL << 31);
+ if (!page)
+ panic("ERROR: Failed to allocate %lx bytes below %lx\n",
+ PAGE_SIZE, 1UL << 31);
+
/* Set multi-threading state to the previous system. */
pcpu_set_smt(sclp.mtid_prev);
boot_cpu_addr = stap();
@@ -766,6 +770,9 @@ void __init smp_detect_cpus(void)
/* Get CPU information */
info = memblock_alloc(sizeof(*info), 8);
+ if (!info)
+ panic("%s: Failed to allocate %zu bytes align=0x%x\n",
+ __func__, sizeof(*info), 8);
smp_get_core_info(info, 1);
/* Find boot CPU type */
if (sclp.has_core_type) {
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 8992b04c0adea6329299e30c4aaf8013a94b2de1..8964a3f60aadbb1fdc5d7c884acd44d565c72265 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -520,6 +520,9 @@ static void __init alloc_masks(struct sysinfo_15_1_x *info,
nr_masks = max(nr_masks, 1);
for (i = 0; i < nr_masks; i++) {
mask->next = memblock_alloc(sizeof(*mask->next), 8);
+ if (!mask->next)
+ panic("%s: Failed to allocate %zu bytes align=0x%x\n",
+ __func__, sizeof(*mask->next), 8);
mask = mask->next;
}
}
@@ -538,6 +541,9 @@ void __init topology_init_early(void)
if (!MACHINE_HAS_TOPOLOGY)
goto out;
tl_info = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+ if (!tl_info)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
info = tl_info;
store_topology(info);
pr_info("The CPU configuration topology of the machine is: %d %d %d %d %d %d / %d\n",
diff --git a/arch/s390/numa/mode_emu.c b/arch/s390/numa/mode_emu.c
index bfba273c32c01ae70497f4cf32c1c8a28b17179a..71a12a4f49069624a85c5fb78a0f5c4241ba3b85 100644
--- a/arch/s390/numa/mode_emu.c
+++ b/arch/s390/numa/mode_emu.c
@@ -313,6 +313,9 @@ static void __ref create_core_to_node_map(void)
int i;
emu_cores = memblock_alloc(sizeof(*emu_cores), 8);
+ if (!emu_cores)
+ panic("%s: Failed to allocate %zu bytes align=0x%x\n",
+ __func__, sizeof(*emu_cores), 8);
for (i = 0; i < ARRAY_SIZE(emu_cores->to_node_id); i++)
emu_cores->to_node_id[i] = NODE_ID_FREE;
}
diff --git a/arch/s390/numa/numa.c b/arch/s390/numa/numa.c
index d31bde0870d894bdc2cd3a3006d966924d1d5c1c..8eb9e9743f5d8d4d85bf62c8a7bfebce8c248259 100644
--- a/arch/s390/numa/numa.c
+++ b/arch/s390/numa/numa.c
@@ -57,18 +57,6 @@ EXPORT_SYMBOL(__node_distance);
int numa_debug_enabled;
-/*
- * alloc_node_data() - Allocate node data
- */
-static __init pg_data_t *alloc_node_data(void)
-{
- pg_data_t *res;
-
- res = (pg_data_t *) memblock_phys_alloc(sizeof(pg_data_t), 8);
- memset(res, 0, sizeof(pg_data_t));
- return res;
-}
-
/*
* numa_setup_memory() - Assign bootmem to nodes
*
@@ -104,8 +92,12 @@ static void __init numa_setup_memory(void)
} while (cur_base < end_of_dram);
/* Allocate and fill out node_data */
- for (nid = 0; nid < MAX_NUMNODES; nid++)
- NODE_DATA(nid) = alloc_node_data();
+ for (nid = 0; nid < MAX_NUMNODES; nid++) {
+ NODE_DATA(nid) = memblock_alloc(sizeof(pg_data_t), 8);
+ if (!NODE_DATA(nid))
+ panic("%s: Failed to allocate %zu bytes align=0x%x\n",
+ __func__, sizeof(pg_data_t), 8);
+ }
for_each_online_node(nid) {
unsigned long start_pfn, end_pfn;
diff --git a/arch/sh/boards/mach-ap325rxa/setup.c b/arch/sh/boards/mach-ap325rxa/setup.c
index 7899b4f51fdddddfc61adc227453b358e0b444ed..8301a4378f502cdcf8ce87da797013708dab32ce 100644
--- a/arch/sh/boards/mach-ap325rxa/setup.c
+++ b/arch/sh/boards/mach-ap325rxa/setup.c
@@ -556,7 +556,10 @@ static void __init ap325rxa_mv_mem_reserve(void)
phys_addr_t phys;
phys_addr_t size = CEU_BUFFER_MEMORY_SIZE;
- phys = memblock_alloc_base(size, PAGE_SIZE, MEMBLOCK_ALLOC_ANYWHERE);
+ phys = memblock_phys_alloc(size, PAGE_SIZE);
+ if (!phys)
+ panic("Failed to allocate CEU memory\n");
+
memblock_free(phys, size);
memblock_remove(phys, size);
diff --git a/arch/sh/boards/mach-ecovec24/setup.c b/arch/sh/boards/mach-ecovec24/setup.c
index 3c59019c4695ec99543192d3348109d11b0792c3..34e5414c556391469ed7a72119a653109f570e6b 100644
--- a/arch/sh/boards/mach-ecovec24/setup.c
+++ b/arch/sh/boards/mach-ecovec24/setup.c
@@ -1476,12 +1476,18 @@ static void __init ecovec_mv_mem_reserve(void)
phys_addr_t phys;
phys_addr_t size = CEU_BUFFER_MEMORY_SIZE;
- phys = memblock_alloc_base(size, PAGE_SIZE, MEMBLOCK_ALLOC_ANYWHERE);
+ phys = memblock_phys_alloc(size, PAGE_SIZE);
+ if (!phys)
+ panic("Failed to allocate CEU0 memory\n");
+
memblock_free(phys, size);
memblock_remove(phys, size);
ceu0_dma_membase = phys;
- phys = memblock_alloc_base(size, PAGE_SIZE, MEMBLOCK_ALLOC_ANYWHERE);
+ phys = memblock_phys_alloc(size, PAGE_SIZE);
+ if (!phys)
+ panic("Failed to allocate CEU1 memory\n");
+
memblock_free(phys, size);
memblock_remove(phys, size);
ceu1_dma_membase = phys;
diff --git a/arch/sh/boards/mach-kfr2r09/setup.c b/arch/sh/boards/mach-kfr2r09/setup.c
index b8bf67c86eab60438fce39b687f6fd1b29b91195..1cf9a47ac90ed7fcb1580e5cb4526d980d3d918f 100644
--- a/arch/sh/boards/mach-kfr2r09/setup.c
+++ b/arch/sh/boards/mach-kfr2r09/setup.c
@@ -630,7 +630,10 @@ static void __init kfr2r09_mv_mem_reserve(void)
phys_addr_t phys;
phys_addr_t size = CEU_BUFFER_MEMORY_SIZE;
- phys = memblock_alloc_base(size, PAGE_SIZE, MEMBLOCK_ALLOC_ANYWHERE);
+ phys = memblock_phys_alloc(size, PAGE_SIZE);
+ if (!phys)
+ panic("Failed to allocate CEU memory\n");
+
memblock_free(phys, size);
memblock_remove(phys, size);
diff --git a/arch/sh/boards/mach-migor/setup.c b/arch/sh/boards/mach-migor/setup.c
index 03579faa4ce3efd88cb566577b3bd16ad51a7e1f..90702740f207c783f1a50b2c90ea22ab728da0a1 100644
--- a/arch/sh/boards/mach-migor/setup.c
+++ b/arch/sh/boards/mach-migor/setup.c
@@ -630,7 +630,10 @@ static void __init migor_mv_mem_reserve(void)
phys_addr_t phys;
phys_addr_t size = CEU_BUFFER_MEMORY_SIZE;
- phys = memblock_alloc_base(size, PAGE_SIZE, MEMBLOCK_ALLOC_ANYWHERE);
+ phys = memblock_phys_alloc(size, PAGE_SIZE);
+ if (!phys)
+ panic("Failed to allocate CEU memory\n");
+
memblock_free(phys, size);
memblock_remove(phys, size);
diff --git a/arch/sh/boards/mach-se/7724/setup.c b/arch/sh/boards/mach-se/7724/setup.c
index 13c2d3ce78f4ffde8b547ff3f0dd9a27bf747f55..3674064816c73c7e6ee371f607d1b5b5f88bfbc9 100644
--- a/arch/sh/boards/mach-se/7724/setup.c
+++ b/arch/sh/boards/mach-se/7724/setup.c
@@ -963,12 +963,18 @@ static void __init ms7724se_mv_mem_reserve(void)
phys_addr_t phys;
phys_addr_t size = CEU_BUFFER_MEMORY_SIZE;
- phys = memblock_alloc_base(size, PAGE_SIZE, MEMBLOCK_ALLOC_ANYWHERE);
+ phys = memblock_phys_alloc(size, PAGE_SIZE);
+ if (!phys)
+ panic("Failed to allocate CEU0 memory\n");
+
memblock_free(phys, size);
memblock_remove(phys, size);
ceu0_dma_membase = phys;
- phys = memblock_alloc_base(size, PAGE_SIZE, MEMBLOCK_ALLOC_ANYWHERE);
+ phys = memblock_phys_alloc(size, PAGE_SIZE);
+ if (!phys)
+ panic("Failed to allocate CEU1 memory\n");
+
memblock_free(phys, size);
memblock_remove(phys, size);
ceu1_dma_membase = phys;
diff --git a/arch/sh/kernel/machine_kexec.c b/arch/sh/kernel/machine_kexec.c
index b9f9f1a5afdc1a2d71f61dce066f39e4cf11fc87..63d63a36f6f29e8299fa8625374daf52cfe8a33c 100644
--- a/arch/sh/kernel/machine_kexec.c
+++ b/arch/sh/kernel/machine_kexec.c
@@ -168,7 +168,8 @@ void __init reserve_crashkernel(void)
crash_size = PAGE_ALIGN(resource_size(&crashk_res));
if (!crashk_res.start) {
unsigned long max = memblock_end_of_DRAM() - memory_limit;
- crashk_res.start = __memblock_alloc_base(crash_size, PAGE_SIZE, max);
+ crashk_res.start = memblock_phys_alloc_range(crash_size,
+ PAGE_SIZE, 0, max);
if (!crashk_res.start) {
pr_err("crashkernel allocation failed\n");
goto disable;
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index a8e5c0e00fcaef3d85a0ce595db38fbe36c46532..70621324db4128f5f805f80a3b58f1360fe2d527 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -128,6 +128,9 @@ static pmd_t * __init one_md_table_init(pud_t *pud)
pmd_t *pmd;
pmd = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+ if (!pmd)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
pud_populate(&init_mm, pud, pmd);
BUG_ON(pmd != pmd_offset(pud, 0));
}
@@ -141,6 +144,9 @@ static pte_t * __init one_page_table_init(pmd_t *pmd)
pte_t *pte;
pte = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+ if (!pte)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
pmd_populate_kernel(&init_mm, pmd, pte);
BUG_ON(pte != pte_offset_kernel(pmd, 0));
}
@@ -192,24 +198,16 @@ void __init page_table_range_init(unsigned long start, unsigned long end,
void __init allocate_pgdat(unsigned int nid)
{
unsigned long start_pfn, end_pfn;
-#ifdef CONFIG_NEED_MULTIPLE_NODES
- unsigned long phys;
-#endif
get_pfn_range_for_nid(nid, &start_pfn, &end_pfn);
#ifdef CONFIG_NEED_MULTIPLE_NODES
- phys = __memblock_alloc_base(sizeof(struct pglist_data),
- SMP_CACHE_BYTES, end_pfn << PAGE_SHIFT);
- /* Retry with all of system memory */
- if (!phys)
- phys = __memblock_alloc_base(sizeof(struct pglist_data),
- SMP_CACHE_BYTES, memblock_end_of_DRAM());
- if (!phys)
+ NODE_DATA(nid) = memblock_alloc_try_nid(
+ sizeof(struct pglist_data),
+ SMP_CACHE_BYTES, MEMBLOCK_LOW_LIMIT,
+ MEMBLOCK_ALLOC_ACCESSIBLE, nid);
+ if (!NODE_DATA(nid))
panic("Can't allocate pgdat for node %d\n", nid);
-
- NODE_DATA(nid) = __va(phys);
- memset(NODE_DATA(nid), 0, sizeof(struct pglist_data));
#endif
NODE_DATA(nid)->node_start_pfn = start_pfn;
diff --git a/arch/sh/mm/numa.c b/arch/sh/mm/numa.c
index 830e8b3684e4248417464934b8634e4d303f4a16..f7e4439deb17629b3071359df114b8b7772c460a 100644
--- a/arch/sh/mm/numa.c
+++ b/arch/sh/mm/numa.c
@@ -41,9 +41,12 @@ void __init setup_bootmem_node(int nid, unsigned long start, unsigned long end)
__add_active_range(nid, start_pfn, end_pfn);
/* Node-local pgdat */
- NODE_DATA(nid) = __va(memblock_alloc_base(sizeof(struct pglist_data),
- SMP_CACHE_BYTES, end));
- memset(NODE_DATA(nid), 0, sizeof(struct pglist_data));
+ NODE_DATA(nid) = memblock_alloc_node(sizeof(struct pglist_data),
+ SMP_CACHE_BYTES, nid);
+ if (!NODE_DATA(nid))
+ panic("%s: Failed to allocate %zu bytes align=0x%x nid=%d\n",
+ __func__, sizeof(struct pglist_data), SMP_CACHE_BYTES,
+ nid);
NODE_DATA(nid)->node_start_pfn = start_pfn;
NODE_DATA(nid)->node_spanned_pages = end_pfn - start_pfn;
diff --git a/arch/sparc/kernel/prom_32.c b/arch/sparc/kernel/prom_32.c
index 42d7f2a7da6d080d138c931a1589b39e95735415..869b16c96157e52f238304031e47bd2c64e6153d 100644
--- a/arch/sparc/kernel/prom_32.c
+++ b/arch/sparc/kernel/prom_32.c
@@ -32,9 +32,9 @@ void * __init prom_early_alloc(unsigned long size)
{
void *ret;
- ret = memblock_alloc_from(size, SMP_CACHE_BYTES, 0UL);
- if (ret != NULL)
- memset(ret, 0, size);
+ ret = memblock_alloc(size, SMP_CACHE_BYTES);
+ if (!ret)
+ panic("%s: Failed to allocate %lu bytes\n", __func__, size);
prom_early_allocated += size;
diff --git a/arch/sparc/kernel/prom_64.c b/arch/sparc/kernel/prom_64.c
index e897a4ded3a1d860c5b606587d7b9249e8ea53a4..c50ff1fee0e638b6f68671f8f7b0e5be0499caa4 100644
--- a/arch/sparc/kernel/prom_64.c
+++ b/arch/sparc/kernel/prom_64.c
@@ -34,16 +34,13 @@
void * __init prom_early_alloc(unsigned long size)
{
- unsigned long paddr = memblock_phys_alloc(size, SMP_CACHE_BYTES);
- void *ret;
+ void *ret = memblock_alloc(size, SMP_CACHE_BYTES);
- if (!paddr) {
+ if (!ret) {
prom_printf("prom_early_alloc(%lu) failed\n", size);
prom_halt();
}
- ret = __va(paddr);
- memset(ret, 0, size);
prom_early_allocated += size;
return ret;
diff --git a/arch/sparc/kernel/setup_64.c b/arch/sparc/kernel/setup_64.c
index 51c4d12c085338c9a293c3374256d9dccbe2aa44..fd2182a5c32db11414e690c66dfd7c2455bfc6e1 100644
--- a/arch/sparc/kernel/setup_64.c
+++ b/arch/sparc/kernel/setup_64.c
@@ -624,8 +624,14 @@ void __init alloc_irqstack_bootmem(void)
softirq_stack[i] = memblock_alloc_node(THREAD_SIZE,
THREAD_SIZE, node);
+ if (!softirq_stack[i])
+ panic("%s: Failed to allocate %lu bytes align=%lx nid=%d\n",
+ __func__, THREAD_SIZE, THREAD_SIZE, node);
hardirq_stack[i] = memblock_alloc_node(THREAD_SIZE,
THREAD_SIZE, node);
+ if (!hardirq_stack[i])
+ panic("%s: Failed to allocate %lu bytes align=%lx nid=%d\n",
+ __func__, THREAD_SIZE, THREAD_SIZE, node);
}
}
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index f45d876983f152fbda3ecab15e2a4a37be82c40e..a8275fea4b70c02019718fb0dfe93df1f6e12e6d 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -1628,6 +1628,8 @@ static void __init pcpu_populate_pte(unsigned long addr)
pud_t *new;
new = memblock_alloc_from(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE);
+ if (!new)
+ goto err_alloc;
pgd_populate(&init_mm, pgd, new);
}
@@ -1636,6 +1638,8 @@ static void __init pcpu_populate_pte(unsigned long addr)
pmd_t *new;
new = memblock_alloc_from(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE);
+ if (!new)
+ goto err_alloc;
pud_populate(&init_mm, pud, new);
}
@@ -1644,8 +1648,16 @@ static void __init pcpu_populate_pte(unsigned long addr)
pte_t *new;
new = memblock_alloc_from(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE);
+ if (!new)
+ goto err_alloc;
pmd_populate_kernel(&init_mm, pmd, new);
}
+
+ return;
+
+err_alloc:
+ panic("%s: Failed to allocate %lu bytes align=%lx from=%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE, PAGE_SIZE);
}
void __init setup_per_cpu_areas(void)
diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c
index d900952bfc5f3b0da140e722025f9aea21bfcef4..a8ff29821bdbc44466481b310fdedf3729c50047 100644
--- a/arch/sparc/mm/init_32.c
+++ b/arch/sparc/mm/init_32.c
@@ -264,7 +264,7 @@ void __init mem_init(void)
i = last_valid_pfn >> ((20 - PAGE_SHIFT) + 5);
i += 1;
sparc_valid_addr_bitmap = (unsigned long *)
- memblock_alloc_from(i << 2, SMP_CACHE_BYTES, 0UL);
+ memblock_alloc(i << 2, SMP_CACHE_BYTES);
if (sparc_valid_addr_bitmap == NULL) {
prom_printf("mem_init: Cannot alloc valid_addr_bitmap.\n");
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 9e6bd868ba6f1403b5a985a06ab8b5270c2acc8b..f2d70ff7a28427a2b83d82a7c075c17d2a62f123 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -1089,16 +1089,13 @@ static void __init allocate_node_data(int nid)
struct pglist_data *p;
unsigned long start_pfn, end_pfn;
#ifdef CONFIG_NEED_MULTIPLE_NODES
- unsigned long paddr;
- paddr = memblock_phys_alloc_try_nid(sizeof(struct pglist_data),
- SMP_CACHE_BYTES, nid);
- if (!paddr) {
+ NODE_DATA(nid) = memblock_alloc_node(sizeof(struct pglist_data),
+ SMP_CACHE_BYTES, nid);
+ if (!NODE_DATA(nid)) {
prom_printf("Cannot allocate pglist_data for nid[%d]\n", nid);
prom_halt();
}
- NODE_DATA(nid) = __va(paddr);
- memset(NODE_DATA(nid), 0, sizeof(struct pglist_data));
NODE_DATA(nid)->node_id = nid;
#endif
@@ -1812,6 +1809,8 @@ static unsigned long __ref kernel_map_range(unsigned long pstart,
new = memblock_alloc_from(PAGE_SIZE, PAGE_SIZE,
PAGE_SIZE);
+ if (!new)
+ goto err_alloc;
alloc_bytes += PAGE_SIZE;
pgd_populate(&init_mm, pgd, new);
}
@@ -1825,6 +1824,8 @@ static unsigned long __ref kernel_map_range(unsigned long pstart,
}
new = memblock_alloc_from(PAGE_SIZE, PAGE_SIZE,
PAGE_SIZE);
+ if (!new)
+ goto err_alloc;
alloc_bytes += PAGE_SIZE;
pud_populate(&init_mm, pud, new);
}
@@ -1839,6 +1840,8 @@ static unsigned long __ref kernel_map_range(unsigned long pstart,
}
new = memblock_alloc_from(PAGE_SIZE, PAGE_SIZE,
PAGE_SIZE);
+ if (!new)
+ goto err_alloc;
alloc_bytes += PAGE_SIZE;
pmd_populate_kernel(&init_mm, pmd, new);
}
@@ -1858,6 +1861,11 @@ static unsigned long __ref kernel_map_range(unsigned long pstart,
}
return alloc_bytes;
+
+err_alloc:
+ panic("%s: Failed to allocate %lu bytes align=%lx from=%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE, PAGE_SIZE);
+ return -ENOMEM;
}
static void __init flush_all_kernel_tsbs(void)
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index b609362e846fcce0ceceba0795598cad03358ec7..aaebbc00d26236c01688ebc50dde58fb2921ef24 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -303,13 +303,19 @@ static void __init srmmu_nocache_init(void)
bitmap_bits = srmmu_nocache_size >> SRMMU_NOCACHE_BITMAP_SHIFT;
- srmmu_nocache_pool = memblock_alloc_from(srmmu_nocache_size,
- SRMMU_NOCACHE_ALIGN_MAX, 0UL);
+ srmmu_nocache_pool = memblock_alloc(srmmu_nocache_size,
+ SRMMU_NOCACHE_ALIGN_MAX);
+ if (!srmmu_nocache_pool)
+ panic("%s: Failed to allocate %lu bytes align=0x%x\n",
+ __func__, srmmu_nocache_size, SRMMU_NOCACHE_ALIGN_MAX);
memset(srmmu_nocache_pool, 0, srmmu_nocache_size);
srmmu_nocache_bitmap =
- memblock_alloc_from(BITS_TO_LONGS(bitmap_bits) * sizeof(long),
- SMP_CACHE_BYTES, 0UL);
+ memblock_alloc(BITS_TO_LONGS(bitmap_bits) * sizeof(long),
+ SMP_CACHE_BYTES);
+ if (!srmmu_nocache_bitmap)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ BITS_TO_LONGS(bitmap_bits) * sizeof(long));
bit_map_init(&srmmu_nocache_map, srmmu_nocache_bitmap, bitmap_bits);
srmmu_swapper_pg_dir = __srmmu_get_nocache(SRMMU_PGD_TABLE_SIZE, SRMMU_PGD_TABLE_SIZE);
@@ -467,7 +473,9 @@ static void __init sparc_context_init(int numctx)
unsigned long size;
size = numctx * sizeof(struct ctx_list);
- ctx_list_pool = memblock_alloc_from(size, SMP_CACHE_BYTES, 0UL);
+ ctx_list_pool = memblock_alloc(size, SMP_CACHE_BYTES);
+ if (!ctx_list_pool)
+ panic("%s: Failed to allocate %lu bytes\n", __func__, size);
for (ctx = 0; ctx < numctx; ctx++) {
struct ctx_list *clist;
diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c
index d80cfb1d943077c5551bd9c1a60528cf7eec4c62..6e5be5fb4143695379ae4fc218971d23446d0b2f 100644
--- a/arch/um/drivers/net_kern.c
+++ b/arch/um/drivers/net_kern.c
@@ -649,6 +649,9 @@ static int __init eth_setup(char *str)
}
new = memblock_alloc(sizeof(*new), SMP_CACHE_BYTES);
+ if (!new)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ sizeof(*new));
INIT_LIST_HEAD(&new->list);
new->index = n;
diff --git a/arch/um/drivers/vector_kern.c b/arch/um/drivers/vector_kern.c
index 046fa9ea0ccc7dae2ee80381c224916700e612d1..596e7056f37607229afa47e280f01ede39b42412 100644
--- a/arch/um/drivers/vector_kern.c
+++ b/arch/um/drivers/vector_kern.c
@@ -1576,6 +1576,9 @@ static int __init vector_setup(char *str)
return 1;
}
new = memblock_alloc(sizeof(*new), SMP_CACHE_BYTES);
+ if (!new)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ sizeof(*new));
INIT_LIST_HEAD(&new->list);
new->unit = n;
new->arguments = str;
diff --git a/arch/um/kernel/initrd.c b/arch/um/kernel/initrd.c
index ce169ea87e6189e6ca025a41711638ab5ff9d483..1dcd310cb34d04417e2696d1bcecf54a3e6031d4 100644
--- a/arch/um/kernel/initrd.c
+++ b/arch/um/kernel/initrd.c
@@ -37,6 +37,8 @@ int __init read_initrd(void)
}
area = memblock_alloc(size, SMP_CACHE_BYTES);
+ if (!area)
+ panic("%s: Failed to allocate %llu bytes\n", __func__, size);
if (load_initrd(initrd, area, size) == -1)
return 0;
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index 799b571a8f884b9356b3ea9f6c849c51337e3f0d..99aa11bf53d108d9bb5878d70e7b762b07334b1d 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -66,6 +66,10 @@ static void __init one_page_table_init(pmd_t *pmd)
if (pmd_none(*pmd)) {
pte_t *pte = (pte_t *) memblock_alloc_low(PAGE_SIZE,
PAGE_SIZE);
+ if (!pte)
+ panic("%s: Failed to allocate %lu bytes align=%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
+
set_pmd(pmd, __pmd(_KERNPG_TABLE +
(unsigned long) __pa(pte)));
if (pte != pte_offset_kernel(pmd, 0))
@@ -77,6 +81,10 @@ static void __init one_md_table_init(pud_t *pud)
{
#ifdef CONFIG_3_LEVEL_PGTABLES
pmd_t *pmd_table = (pmd_t *) memblock_alloc_low(PAGE_SIZE, PAGE_SIZE);
+ if (!pmd_table)
+ panic("%s: Failed to allocate %lu bytes align=%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
+
set_pud(pud, __pud(_KERNPG_TABLE + (unsigned long) __pa(pmd_table)));
if (pmd_table != pmd_offset(pud, 0))
BUG();
@@ -126,6 +134,10 @@ static void __init fixaddr_user_init( void)
fixrange_init( FIXADDR_USER_START, FIXADDR_USER_END, swapper_pg_dir);
v = (unsigned long) memblock_alloc_low(size, PAGE_SIZE);
+ if (!v)
+ panic("%s: Failed to allocate %lu bytes align=%lx\n",
+ __func__, size, PAGE_SIZE);
+
memcpy((void *) v , (void *) FIXADDR_USER_START, size);
p = __pa(v);
for ( ; size > 0; size -= PAGE_SIZE, vaddr += PAGE_SIZE,
@@ -146,6 +158,10 @@ void __init paging_init(void)
empty_zero_page = (unsigned long *) memblock_alloc_low(PAGE_SIZE,
PAGE_SIZE);
+ if (!empty_zero_page)
+ panic("%s: Failed to allocate %lu bytes align=%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
+
for (i = 0; i < ARRAY_SIZE(zones_size); i++)
zones_size[i] = 0;
diff --git a/arch/unicore32/kernel/setup.c b/arch/unicore32/kernel/setup.c
index 4b0cb68c355ac0458653613be25571f557393e04..d3239cf2e83753c4388c150e22bb44521ac60895 100644
--- a/arch/unicore32/kernel/setup.c
+++ b/arch/unicore32/kernel/setup.c
@@ -207,6 +207,10 @@ request_standard_resources(struct meminfo *mi)
continue;
res = memblock_alloc_low(sizeof(*res), SMP_CACHE_BYTES);
+ if (!res)
+ panic("%s: Failed to allocate %zu bytes align=%x\n",
+ __func__, sizeof(*res), SMP_CACHE_BYTES);
+
res->name = "System RAM";
res->start = mi->bank[i].start;
res->end = mi->bank[i].start + mi->bank[i].size - 1;
diff --git a/arch/unicore32/mm/init.c b/arch/unicore32/mm/init.c
index 85ef2c62409034ffef4fe79e3fffca0fc5d4d73e..74b6a2e29809a8b0253bc5ac5561f943809f2d42 100644
--- a/arch/unicore32/mm/init.c
+++ b/arch/unicore32/mm/init.c
@@ -274,30 +274,6 @@ void __init mem_init(void)
memblock_free_all();
mem_init_print_info(NULL);
- printk(KERN_NOTICE "Virtual kernel memory layout:\n"
- " vector : 0x%08lx - 0x%08lx (%4ld kB)\n"
- " vmalloc : 0x%08lx - 0x%08lx (%4ld MB)\n"
- " lowmem : 0x%08lx - 0x%08lx (%4ld MB)\n"
- " modules : 0x%08lx - 0x%08lx (%4ld MB)\n"
- " .init : 0x%p" " - 0x%p" " (%4d kB)\n"
- " .text : 0x%p" " - 0x%p" " (%4d kB)\n"
- " .data : 0x%p" " - 0x%p" " (%4d kB)\n",
-
- VECTORS_BASE, VECTORS_BASE + PAGE_SIZE,
- DIV_ROUND_UP(PAGE_SIZE, SZ_1K),
- VMALLOC_START, VMALLOC_END,
- DIV_ROUND_UP((VMALLOC_END - VMALLOC_START), SZ_1M),
- PAGE_OFFSET, (unsigned long)high_memory,
- DIV_ROUND_UP(((unsigned long)high_memory - PAGE_OFFSET), SZ_1M),
- MODULES_VADDR, MODULES_END,
- DIV_ROUND_UP((MODULES_END - MODULES_VADDR), SZ_1M),
-
- __init_begin, __init_end,
- DIV_ROUND_UP((__init_end - __init_begin), SZ_1K),
- _stext, _etext,
- DIV_ROUND_UP((_etext - _stext), SZ_1K),
- _sdata, _edata,
- DIV_ROUND_UP((_edata - _sdata), SZ_1K));
BUILD_BUG_ON(TASK_SIZE > MODULES_VADDR);
BUG_ON(TASK_SIZE > MODULES_VADDR);
diff --git a/arch/unicore32/mm/mmu.c b/arch/unicore32/mm/mmu.c
index 040a8c279761d827a7546960552061ce40cb875c..aa2060beb40840d91b9023fce78f116f26c8952d 100644
--- a/arch/unicore32/mm/mmu.c
+++ b/arch/unicore32/mm/mmu.c
@@ -141,18 +141,17 @@ static void __init build_mem_type_table(void)
#define vectors_base() (vectors_high() ? 0xffff0000 : 0)
-static void __init *early_alloc(unsigned long sz)
-{
- void *ptr = __va(memblock_phys_alloc(sz, sz));
- memset(ptr, 0, sz);
- return ptr;
-}
-
static pte_t * __init early_pte_alloc(pmd_t *pmd, unsigned long addr,
unsigned long prot)
{
if (pmd_none(*pmd)) {
- pte_t *pte = early_alloc(PTRS_PER_PTE * sizeof(pte_t));
+ size_t size = PTRS_PER_PTE * sizeof(pte_t);
+ pte_t *pte = memblock_alloc(size, size);
+
+ if (!pte)
+ panic("%s: Failed to allocate %zu bytes align=%zx\n",
+ __func__, size, size);
+
__pmd_populate(pmd, __pa(pte) | prot);
}
BUG_ON(pmd_bad(*pmd));
@@ -354,7 +353,10 @@ static void __init devicemaps_init(void)
/*
* Allocate the vector page early.
*/
- vectors = early_alloc(PAGE_SIZE);
+ vectors = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+ if (!vectors)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
for (addr = VMALLOC_END; addr; addr += PGDIR_SIZE)
pmd_clear(pmd_off_k(addr));
@@ -431,7 +433,10 @@ void __init paging_init(void)
top_pmd = pmd_off_k(0xffff0000);
/* allocate the zero page. */
- zero_page = early_alloc(PAGE_SIZE);
+ zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+ if (!zero_page)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
bootmem_init();
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 2624de16cd7abd3d3443d411abc5fb57919e5f70..8dcbf68907146512a839da60817c6b292c135e47 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -935,6 +935,9 @@ static int __init acpi_parse_hpet(struct acpi_table_header *table)
#define HPET_RESOURCE_NAME_SIZE 9
hpet_res = memblock_alloc(sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE,
SMP_CACHE_BYTES);
+ if (!hpet_res)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE);
hpet_res->name = (void *)&hpet_res[1];
hpet_res->flags = IORESOURCE_MEM;
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 264e3221d9233eaf0505338ae6f21c365540f1d6..53aa234a6803f295aa7d24fc81e17c38dd99b216 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2581,6 +2581,8 @@ static struct resource * __init ioapic_setup_resources(void)
n *= nr_ioapics;
mem = memblock_alloc(n, SMP_CACHE_BYTES);
+ if (!mem)
+ panic("%s: Failed to allocate %lu bytes\n", __func__, n);
res = (void *)mem;
mem += sizeof(struct resource) * nr_ioapics;
@@ -2625,6 +2627,9 @@ void __init io_apic_init_mappings(void)
#endif
ioapic_phys = (unsigned long)memblock_alloc(PAGE_SIZE,
PAGE_SIZE);
+ if (!ioapic_phys)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
ioapic_phys = __pa(ioapic_phys);
}
set_fixmap_nocache(idx, ioapic_phys);
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 666e4af145a25dd6be6113269259c45d6aa4a895..2879e234e1936f76e59383d56ee5c26b58ce6b53 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -776,7 +776,7 @@ u64 __init e820__memblock_alloc_reserved(u64 size, u64 align)
{
u64 addr;
- addr = __memblock_alloc_base(size, align, MEMBLOCK_ALLOC_ACCESSIBLE);
+ addr = memblock_phys_alloc(size, align);
if (addr) {
e820__range_update_kexec(addr, size, E820_TYPE_RAM, E820_TYPE_RESERVED);
pr_info("update e820_table_kexec for e820__memblock_alloc_reserved()\n");
@@ -1097,6 +1097,9 @@ void __init e820__reserve_resources(void)
res = memblock_alloc(sizeof(*res) * e820_table->nr_entries,
SMP_CACHE_BYTES);
+ if (!res)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ sizeof(*res) * e820_table->nr_entries);
e820_res = res;
for (i = 0; i < e820_table->nr_entries; i++) {
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index 13af08827eefc61e4252f7ffc6cc014f661e1f27..4bf46575568a237678eb4a710d885cd4e033d07f 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -106,22 +106,22 @@ static void * __init pcpu_alloc_bootmem(unsigned int cpu, unsigned long size,
void *ptr;
if (!node_online(node) || !NODE_DATA(node)) {
- ptr = memblock_alloc_from_nopanic(size, align, goal);
+ ptr = memblock_alloc_from(size, align, goal);
pr_info("cpu %d has no node %d or node-local memory\n",
cpu, node);
pr_debug("per cpu data for cpu%d %lu bytes at %016lx\n",
cpu, size, __pa(ptr));
} else {
- ptr = memblock_alloc_try_nid_nopanic(size, align, goal,
- MEMBLOCK_ALLOC_ACCESSIBLE,
- node);
+ ptr = memblock_alloc_try_nid(size, align, goal,
+ MEMBLOCK_ALLOC_ACCESSIBLE,
+ node);
pr_debug("per cpu data for cpu%d %lu bytes on node%d at %016lx\n",
cpu, size, node, __pa(ptr));
}
return ptr;
#else
- return memblock_alloc_from_nopanic(size, align, goal);
+ return memblock_alloc_from(size, align, goal);
#endif
}
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 9d5c75f0229567c49b1237a33b4c27a21cee3d68..667f1da36208e93434178e07356abe764dd02dcc 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -1031,7 +1031,7 @@ bad_area_access_error(struct pt_regs *regs, unsigned long error_code,
static void
do_sigbus(struct pt_regs *regs, unsigned long error_code, unsigned long address,
- unsigned int fault)
+ vm_fault_t fault)
{
struct task_struct *tsk = current;
diff --git a/arch/x86/mm/kasan_init_64.c b/arch/x86/mm/kasan_init_64.c
index 462fde83b515e60c8b83aea1fa57827eccd09f22..8dc0fc0b1382b6cde08e2774449b39b0607a1a64 100644
--- a/arch/x86/mm/kasan_init_64.c
+++ b/arch/x86/mm/kasan_init_64.c
@@ -24,14 +24,16 @@ extern struct range pfn_mapped[E820_MAX_ENTRIES];
static p4d_t tmp_p4d_table[MAX_PTRS_PER_P4D] __initdata __aligned(PAGE_SIZE);
-static __init void *early_alloc(size_t size, int nid, bool panic)
+static __init void *early_alloc(size_t size, int nid, bool should_panic)
{
- if (panic)
- return memblock_alloc_try_nid(size, size,
- __pa(MAX_DMA_ADDRESS), MEMBLOCK_ALLOC_ACCESSIBLE, nid);
- else
- return memblock_alloc_try_nid_nopanic(size, size,
+ void *ptr = memblock_alloc_try_nid(size, size,
__pa(MAX_DMA_ADDRESS), MEMBLOCK_ALLOC_ACCESSIBLE, nid);
+
+ if (!ptr && should_panic)
+ panic("%pS: Failed to allocate page, nid=%d from=%lx\n",
+ (void *)_RET_IP_, nid, __pa(MAX_DMA_ADDRESS));
+
+ return ptr;
}
static void __init kasan_populate_pmd(pmd_t *pmd, unsigned long addr,
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index 12c1b7a83ed7b03145ed487e1fbe54a8f60c78cd..dfb6c4df639ab14f647a3efa4b25c2b8449aa0d7 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -195,15 +195,11 @@ static void __init alloc_node_data(int nid)
* Allocate node data. Try node-local memory and then any node.
* Never allocate in DMA zone.
*/
- nd_pa = memblock_phys_alloc_nid(nd_size, SMP_CACHE_BYTES, nid);
+ nd_pa = memblock_phys_alloc_try_nid(nd_size, SMP_CACHE_BYTES, nid);
if (!nd_pa) {
- nd_pa = __memblock_alloc_base(nd_size, SMP_CACHE_BYTES,
- MEMBLOCK_ALLOC_ACCESSIBLE);
- if (!nd_pa) {
- pr_err("Cannot find %zu bytes in any node (initial node: %d)\n",
- nd_size, nid);
- return;
- }
+ pr_err("Cannot find %zu bytes in any node (initial node: %d)\n",
+ nd_size, nid);
+ return;
}
nd = __va(nd_pa);
diff --git a/arch/x86/platform/olpc/olpc_dt.c b/arch/x86/platform/olpc/olpc_dt.c
index b4ab779f1d47aa0bc634a5eecf18fbcf79e67d9f..ac9e7bf49b6670216f9220979a261603304cc311 100644
--- a/arch/x86/platform/olpc/olpc_dt.c
+++ b/arch/x86/platform/olpc/olpc_dt.c
@@ -141,6 +141,9 @@ void * __init prom_early_alloc(unsigned long size)
* wasted bootmem) and hand off chunks of it to callers.
*/
res = memblock_alloc(chunk_size, SMP_CACHE_BYTES);
+ if (!res)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ chunk_size);
BUG_ON(!res);
prom_early_allocated += chunk_size;
memset(res, 0, chunk_size);
diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
index 055e37e43541ed17d11cf4a194085b7fc3a3192c..95ce9b5be41124cb6f48db15d433a069fc76f69d 100644
--- a/arch/x86/xen/p2m.c
+++ b/arch/x86/xen/p2m.c
@@ -181,8 +181,15 @@ static void p2m_init_identity(unsigned long *p2m, unsigned long pfn)
static void * __ref alloc_p2m_page(void)
{
- if (unlikely(!slab_is_available()))
- return memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+ if (unlikely(!slab_is_available())) {
+ void *ptr = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+
+ if (!ptr)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
+
+ return ptr;
+ }
return (void *)__get_free_page(GFP_KERNEL);
}
diff --git a/arch/xtensa/mm/kasan_init.c b/arch/xtensa/mm/kasan_init.c
index 1734cda6bc4ae5f51f3b44ebfe63fb21fe0c2ecb..af7152560bc3ff3fd6a1d6bb0c194193057004f2 100644
--- a/arch/xtensa/mm/kasan_init.c
+++ b/arch/xtensa/mm/kasan_init.c
@@ -45,6 +45,10 @@ static void __init populate(void *start, void *end)
pmd_t *pmd = pmd_offset(pgd, vaddr);
pte_t *pte = memblock_alloc(n_pages * sizeof(pte_t), PAGE_SIZE);
+ if (!pte)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, n_pages * sizeof(pte_t), PAGE_SIZE);
+
pr_debug("%s: %p - %p\n", __func__, start, end);
for (i = j = 0; i < n_pmds; ++i) {
@@ -52,8 +56,10 @@ static void __init populate(void *start, void *end)
for (k = 0; k < PTRS_PER_PTE; ++k, ++j) {
phys_addr_t phys =
- memblock_alloc_base(PAGE_SIZE, PAGE_SIZE,
- MEMBLOCK_ALLOC_ANYWHERE);
+ memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE);
+
+ if (!phys)
+ panic("Failed to allocate page table page\n");
set_pte(pte + j, pfn_pte(PHYS_PFN(phys), PAGE_KERNEL));
}
diff --git a/arch/xtensa/mm/mmu.c b/arch/xtensa/mm/mmu.c
index a4dcfd39bc5c1c54f170e83c405f51980a8e84f4..2fb7d117222840da05f44cf7eed39348d27502e5 100644
--- a/arch/xtensa/mm/mmu.c
+++ b/arch/xtensa/mm/mmu.c
@@ -32,6 +32,9 @@ static void * __init init_pmd(unsigned long vaddr, unsigned long n_pages)
__func__, vaddr, n_pages);
pte = memblock_alloc_low(n_pages * sizeof(pte_t), PAGE_SIZE);
+ if (!pte)
+ panic("%s: Failed to allocate %zu bytes align=%lx\n",
+ __func__, n_pages * sizeof(pte_t), PAGE_SIZE);
for (i = 0; i < n_pages; ++i)
pte_clear(NULL, 0, pte + i);
diff --git a/block/blk-core.c b/block/blk-core.c
index 6b78ec56a4f2daef624edb1bb025a76aa3520b52..4673ebe4225534dc9965089ba76ad127963dcb0f 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -500,8 +500,7 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id)
if (!q->stats)
goto fail_stats;
- q->backing_dev_info->ra_pages =
- (VM_MAX_READAHEAD * 1024) / PAGE_SIZE;
+ q->backing_dev_info->ra_pages = VM_READAHEAD_PAGES;
q->backing_dev_info->capabilities = BDI_CAP_CGROUP_WRITEBACK;
q->backing_dev_info->name = "block";
q->node = node_id;
diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c
index ff164a33f67d0b7b7a89a128412ad063bd3ccfdb..ba17cc5bd04bfeb61f5d797da31f11ccec8b3088 100644
--- a/drivers/clk/ti/clk.c
+++ b/drivers/clk/ti/clk.c
@@ -356,6 +356,9 @@ void __init omap2_clk_legacy_provider_init(int index, void __iomem *mem)
struct clk_iomap *io;
io = memblock_alloc(sizeof(*io), SMP_CACHE_BYTES);
+ if (!io)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ sizeof(*io));
io->mem = mem;
diff --git a/drivers/firmware/memmap.c b/drivers/firmware/memmap.c
index ec4fd253a4e92aa0375d10d8fd70873ed54f9f26..d168c87c7d3085655d1fd627a6b65b792129cb03 100644
--- a/drivers/firmware/memmap.c
+++ b/drivers/firmware/memmap.c
@@ -333,7 +333,7 @@ int __init firmware_map_add_early(u64 start, u64 end, const char *type)
{
struct firmware_map_entry *entry;
- entry = memblock_alloc_nopanic(sizeof(struct firmware_map_entry),
+ entry = memblock_alloc(sizeof(struct firmware_map_entry),
SMP_CACHE_BYTES);
if (WARN_ON(!entry))
return -ENOMEM;
diff --git a/drivers/gpu/drm/nouveau/nouveau_dmem.c b/drivers/gpu/drm/nouveau/nouveau_dmem.c
index 8be7a83ced9b5351e194c0bf0b98abc39df50eb3..aa9fec80492d167f720a07ee58f8e0196d858c3a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_dmem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_dmem.c
@@ -261,7 +261,7 @@ static const struct migrate_vma_ops nouveau_dmem_fault_migrate_ops = {
.finalize_and_map = nouveau_dmem_fault_finalize_and_map,
};
-static int
+static vm_fault_t
nouveau_dmem_fault(struct hmm_devmem *devmem,
struct vm_area_struct *vma,
unsigned long addr,
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index 0a0b8e1f4236f701640a5c0e7c9056c0c3c88d01..6a844125cf2d83107dbfdb7d8adfc42e6b2d16c4 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -485,7 +485,7 @@ int __init smu_init (void)
* SMU based G5s need some memory below 2Gb. Thankfully this is
* called at a time where memblock is still available.
*/
- smu_cmdbuf_abs = memblock_alloc_base(4096, 4096, 0x80000000UL);
+ smu_cmdbuf_abs = memblock_phys_alloc_range(4096, 4096, 0, 0x80000000UL);
if (smu_cmdbuf_abs == 0) {
printk(KERN_ERR "SMU: Command buffer allocation failed !\n");
ret = -EINVAL;
@@ -493,6 +493,9 @@ int __init smu_init (void)
}
smu = memblock_alloc(sizeof(struct smu_device), SMP_CACHE_BYTES);
+ if (!smu)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ sizeof(struct smu_device));
spin_lock_init(&smu->lock);
INIT_LIST_HEAD(&smu->cmd_list);
diff --git a/drivers/md/raid5-ppl.c b/drivers/md/raid5-ppl.c
index 3a7c363265893ade48ae5b3f929b039b0673bcdb..0b096ddc9c1e62cd6f5bc0ba050dee8fa4936017 100644
--- a/drivers/md/raid5-ppl.c
+++ b/drivers/md/raid5-ppl.c
@@ -16,7 +16,6 @@
#include <linux/blkdev.h>
#include <linux/slab.h>
#include <linux/crc32c.h>
-#include <linux/flex_array.h>
#include <linux/async_tx.h>
#include <linux/raid/md_p.h>
#include "md.h"
@@ -165,7 +164,7 @@ ops_run_partial_parity(struct stripe_head *sh, struct raid5_percpu *percpu,
struct dma_async_tx_descriptor *tx)
{
int disks = sh->disks;
- struct page **srcs = flex_array_get(percpu->scribble, 0);
+ struct page **srcs = percpu->scribble;
int count = 0, pd_idx = sh->pd_idx, i;
struct async_submit_ctl submit;
@@ -196,8 +195,7 @@ ops_run_partial_parity(struct stripe_head *sh, struct raid5_percpu *percpu,
}
init_async_submit(&submit, ASYNC_TX_FENCE|ASYNC_TX_XOR_ZERO_DST, tx,
- NULL, sh, flex_array_get(percpu->scribble, 0)
- + sizeof(struct page *) * (sh->disks + 2));
+ NULL, sh, (void *) (srcs + sh->disks + 2));
if (count == 1)
tx = async_memcpy(sh->ppl_page, srcs[0], 0, 0, PAGE_SIZE,
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index cecea901ab8c5f666a7eb7ea4c345323efcbff1a..77ffd09be486da312dd0e3d02067672ad69ee340 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -54,7 +54,6 @@
#include <linux/slab.h>
#include <linux/ratelimit.h>
#include <linux/nodemask.h>
-#include <linux/flex_array.h>
#include <trace/events/block.h>
#include <linux/list_sort.h>
@@ -1394,22 +1393,16 @@ static void ops_complete_compute(void *stripe_head_ref)
}
/* return a pointer to the address conversion region of the scribble buffer */
-static addr_conv_t *to_addr_conv(struct stripe_head *sh,
- struct raid5_percpu *percpu, int i)
+static struct page **to_addr_page(struct raid5_percpu *percpu, int i)
{
- void *addr;
-
- addr = flex_array_get(percpu->scribble, i);
- return addr + sizeof(struct page *) * (sh->disks + 2);
+ return percpu->scribble + i * percpu->scribble_obj_size;
}
/* return a pointer to the address conversion region of the scribble buffer */
-static struct page **to_addr_page(struct raid5_percpu *percpu, int i)
+static addr_conv_t *to_addr_conv(struct stripe_head *sh,
+ struct raid5_percpu *percpu, int i)
{
- void *addr;
-
- addr = flex_array_get(percpu->scribble, i);
- return addr;
+ return (void *) (to_addr_page(percpu, i) + sh->disks + 2);
}
static struct dma_async_tx_descriptor *
@@ -2238,21 +2231,23 @@ static int grow_stripes(struct r5conf *conf, int num)
* calculate over all devices (not just the data blocks), using zeros in place
* of the P and Q blocks.
*/
-static struct flex_array *scribble_alloc(int num, int cnt, gfp_t flags)
+static int scribble_alloc(struct raid5_percpu *percpu,
+ int num, int cnt, gfp_t flags)
{
- struct flex_array *ret;
- size_t len;
+ size_t obj_size =
+ sizeof(struct page *) * (num+2) +
+ sizeof(addr_conv_t) * (num+2);
+ void *scribble;
- len = sizeof(struct page *) * (num+2) + sizeof(addr_conv_t) * (num+2);
- ret = flex_array_alloc(len, cnt, flags);
- if (!ret)
- return NULL;
- /* always prealloc all elements, so no locking is required */
- if (flex_array_prealloc(ret, 0, cnt, flags)) {
- flex_array_free(ret);
- return NULL;
- }
- return ret;
+ scribble = kvmalloc_array(cnt, obj_size, flags);
+ if (!scribble)
+ return -ENOMEM;
+
+ kvfree(percpu->scribble);
+
+ percpu->scribble = scribble;
+ percpu->scribble_obj_size = obj_size;
+ return 0;
}
static int resize_chunks(struct r5conf *conf, int new_disks, int new_sectors)
@@ -2270,23 +2265,18 @@ static int resize_chunks(struct r5conf *conf, int new_disks, int new_sectors)
return 0;
mddev_suspend(conf->mddev);
get_online_cpus();
+
for_each_present_cpu(cpu) {
struct raid5_percpu *percpu;
- struct flex_array *scribble;
percpu = per_cpu_ptr(conf->percpu, cpu);
- scribble = scribble_alloc(new_disks,
- new_sectors / STRIPE_SECTORS,
- GFP_NOIO);
-
- if (scribble) {
- flex_array_free(percpu->scribble);
- percpu->scribble = scribble;
- } else {
- err = -ENOMEM;
+ err = scribble_alloc(percpu, new_disks,
+ new_sectors / STRIPE_SECTORS,
+ GFP_NOIO);
+ if (err)
break;
- }
}
+
put_online_cpus();
mddev_resume(conf->mddev);
if (!err) {
@@ -6742,25 +6732,26 @@ raid5_size(struct mddev *mddev, sector_t sectors, int raid_disks)
static void free_scratch_buffer(struct r5conf *conf, struct raid5_percpu *percpu)
{
safe_put_page(percpu->spare_page);
- if (percpu->scribble)
- flex_array_free(percpu->scribble);
percpu->spare_page = NULL;
+ kvfree(percpu->scribble);
percpu->scribble = NULL;
}
static int alloc_scratch_buffer(struct r5conf *conf, struct raid5_percpu *percpu)
{
- if (conf->level == 6 && !percpu->spare_page)
+ if (conf->level == 6 && !percpu->spare_page) {
percpu->spare_page = alloc_page(GFP_KERNEL);
- if (!percpu->scribble)
- percpu->scribble = scribble_alloc(max(conf->raid_disks,
- conf->previous_raid_disks),
- max(conf->chunk_sectors,
- conf->prev_chunk_sectors)
- / STRIPE_SECTORS,
- GFP_KERNEL);
-
- if (!percpu->scribble || (conf->level == 6 && !percpu->spare_page)) {
+ if (!percpu->spare_page)
+ return -ENOMEM;
+ }
+
+ if (scribble_alloc(percpu,
+ max(conf->raid_disks,
+ conf->previous_raid_disks),
+ max(conf->chunk_sectors,
+ conf->prev_chunk_sectors)
+ / STRIPE_SECTORS,
+ GFP_KERNEL)) {
free_scratch_buffer(conf, percpu);
return -ENOMEM;
}
diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h
index 8474c224127bf3f47266e8570458945230626692..cf991f13403eb224ec7f467f4f57874e21ba4c89 100644
--- a/drivers/md/raid5.h
+++ b/drivers/md/raid5.h
@@ -638,10 +638,11 @@ struct r5conf {
/* per cpu variables */
struct raid5_percpu {
struct page *spare_page; /* Used when checking P/Q in raid6 */
- struct flex_array *scribble; /* space for constructing buffer
- * lists and performing address
- * conversions
- */
+ void *scribble; /* space for constructing buffer
+ * lists and performing address
+ * conversions
+ */
+ int scribble_obj_size;
} __percpu *percpu;
int scribble_disks;
int scribble_sectors;
diff --git a/drivers/media/platform/sti/delta/delta-ipc.c b/drivers/media/platform/sti/delta/delta-ipc.c
index a4603d573c34a72289452350fb2eda7b039dccfb..bd1bbbeedec373332404013fb1cd0be03240a859 100644
--- a/drivers/media/platform/sti/delta/delta-ipc.c
+++ b/drivers/media/platform/sti/delta/delta-ipc.c
@@ -175,8 +175,8 @@ int delta_ipc_open(struct delta_ctx *pctx, const char *name,
msg.ipc_buf_size = ipc_buf_size;
msg.ipc_buf_paddr = ctx->ipc_buf->paddr;
- memcpy(msg.name, name, sizeof(msg.name));
- msg.name[sizeof(msg.name) - 1] = 0;
+ memset(msg.name, 0, sizeof(msg.name));
+ strcpy(msg.name, name);
msg.param_size = param->size;
memcpy(ctx->ipc_buf->vaddr, param->data, msg.param_size);
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 9cc1461aac7dd0a6d073571111bdad94f9902655..4734223ab7022f8cd1b3cc484f0538df0785dac8 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -1181,7 +1181,13 @@ int __init __weak early_init_dt_reserve_memory_arch(phys_addr_t base,
static void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
{
- return memblock_alloc(size, align);
+ void *ptr = memblock_alloc(size, align);
+
+ if (!ptr)
+ panic("%s: Failed to allocate %llu bytes align=0x%llx\n",
+ __func__, size, align);
+
+ return ptr;
}
bool __init early_init_dt_verify(void *params)
diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c
index e773063c6de95cf5310868548df4801fbeac6344..6a36bc0b3d6414e556a9b253f71ac3119252233f 100644
--- a/drivers/of/of_reserved_mem.c
+++ b/drivers/of/of_reserved_mem.c
@@ -31,28 +31,18 @@ static int __init early_init_dt_alloc_reserved_memory_arch(phys_addr_t size,
phys_addr_t *res_base)
{
phys_addr_t base;
- /*
- * We use __memblock_alloc_base() because memblock_alloc_base()
- * panic()s on allocation failure.
- */
+
end = !end ? MEMBLOCK_ALLOC_ANYWHERE : end;
align = !align ? SMP_CACHE_BYTES : align;
- base = __memblock_alloc_base(size, align, end);
+ base = memblock_find_in_range(start, end, size, align);
if (!base)
return -ENOMEM;
- /*
- * Check if the allocated region fits in to start..end window
- */
- if (base < start) {
- memblock_free(base, size);
- return -ENOMEM;
- }
-
*res_base = base;
if (nomap)
return memblock_remove(base, size);
- return 0;
+
+ return memblock_reserve(base, size);
}
/**
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 66037511f2d707ae0d0f2392cfcf5e607500c4df..cccde756b51097d4c762b6e41ea1770d5118466e 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -2241,7 +2241,13 @@ static struct device_node *overlay_base_root;
static void * __init dt_alloc_memory(u64 size, u64 align)
{
- return memblock_alloc(size, align);
+ void *ptr = memblock_alloc(size, align);
+
+ if (!ptr)
+ panic("%s: Failed to allocate %llu bytes align=0x%llx\n",
+ __func__, size, align);
+
+ return ptr;
}
/*
diff --git a/drivers/pinctrl/pxa/pinctrl-pxa2xx.c b/drivers/pinctrl/pxa/pinctrl-pxa2xx.c
index 6cf0006d4c8df4837e512ac1e81a32f7d709969e..1da64a99e4f7f0f991131f01cbe00f24b5197a37 100644
--- a/drivers/pinctrl/pxa/pinctrl-pxa2xx.c
+++ b/drivers/pinctrl/pxa/pinctrl-pxa2xx.c
@@ -14,6 +14,7 @@
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/module.h>
+#include <linux/pinctrl/machine.h>
#include <linux/pinctrl/pinconf.h>
#include <linux/pinctrl/pinconf-generic.h>
#include <linux/pinctrl/pinmux.h>
diff --git a/drivers/usb/early/xhci-dbc.c b/drivers/usb/early/xhci-dbc.c
index d2652dccc69975b6733fa597863561dc5bb92dc0..c9cfb100ecdca4e2d75800340cf8b90ee418f2fe 100644
--- a/drivers/usb/early/xhci-dbc.c
+++ b/drivers/usb/early/xhci-dbc.c
@@ -94,7 +94,7 @@ static void * __init xdbc_get_page(dma_addr_t *dma_addr)
{
void *virt;
- virt = memblock_alloc_nopanic(PAGE_SIZE, PAGE_SIZE);
+ virt = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
if (!virt)
return NULL;
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index bb7888429be6b98dec9cd7fcfd13f9827a515d05..877baf2a94f4070a345923e05467cf9e320a8b2c 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -214,10 +214,13 @@ int __ref xen_swiotlb_init(int verbose, bool early)
/*
* Get IO TLB memory from any location.
*/
- if (early)
+ if (early) {
xen_io_tlb_start = memblock_alloc(PAGE_ALIGN(bytes),
PAGE_SIZE);
- else {
+ if (!xen_io_tlb_start)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, PAGE_ALIGN(bytes), PAGE_SIZE);
+ } else {
#define SLABS_PER_PAGE (1 << (PAGE_SHIFT - IO_TLB_SHIFT))
#define IO_TLB_MIN_SLABS ((1<<20) >> IO_TLB_SHIFT)
while ((SLABS_PER_PAGE << order) > IO_TLB_MIN_SLABS) {
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index eeab9953af896fa034d9b61e2088cab28eee0882..d13d35cf69c0e416c04694915215984fb1d09308 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -92,7 +92,7 @@ v9fs_fill_super(struct super_block *sb, struct v9fs_session_info *v9ses,
return ret;
if (v9ses->cache)
- sb->s_bdi->ra_pages = (VM_MAX_READAHEAD * 1024)/PAGE_SIZE;
+ sb->s_bdi->ra_pages = VM_READAHEAD_PAGES;
sb->s_flags |= SB_ACTIVE | SB_DIRSYNC;
if (!v9ses->cache)
diff --git a/fs/afs/super.c b/fs/afs/super.c
index a07af1ab488de5ea7ec74c77612c8d7cbc57e817..5adf012b8e27bfa737b33c987445c9e9ee46c19f 100644
--- a/fs/afs/super.c
+++ b/fs/afs/super.c
@@ -414,7 +414,7 @@ static int afs_fill_super(struct super_block *sb, struct afs_fs_context *ctx)
ret = super_setup_bdi(sb);
if (ret)
return ret;
- sb->s_bdi->ra_pages = VM_MAX_READAHEAD * 1024 / PAGE_SIZE;
+ sb->s_bdi->ra_pages = VM_READAHEAD_PAGES;
/* allocate the root inode and dentry */
if (as->dyn_root) {
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 0f0f081181d3e6975c43c4b26ead48e9de382187..45c0704e5b1d783739ff440f51f92308d76fda11 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2974,7 +2974,7 @@ int open_ctree(struct super_block *sb,
sb->s_bdi->congested_fn = btrfs_congested_fn;
sb->s_bdi->congested_data = fs_info;
sb->s_bdi->capabilities |= BDI_CAP_CGROUP_WRITEBACK;
- sb->s_bdi->ra_pages = VM_MAX_READAHEAD * SZ_1K / PAGE_SIZE;
+ sb->s_bdi->ra_pages = VM_READAHEAD_PAGES;
sb->s_bdi->ra_pages *= btrfs_super_num_devices(disk_super);
sb->s_bdi->ra_pages = max(sb->s_bdi->ra_pages, SZ_4M / PAGE_SIZE);
diff --git a/fs/fs_parser.c b/fs/fs_parser.c
index 842e8f749db64eb6ee17297e1039bb7e2c4ea2b7..570d71043acf982976d3098cf5e4beaee7532241 100644
--- a/fs/fs_parser.c
+++ b/fs/fs_parser.c
@@ -410,7 +410,7 @@ bool fs_validate_description(const struct fs_parameter_description *desc)
for (param = desc->specs; param->name; param++) {
if (param->opt == e->opt &&
param->type != fs_param_is_enum) {
- pr_err("VALIDATE %s: e[%lu] enum val for %s\n",
+ pr_err("VALIDATE %s: e[%tu] enum val for %s\n",
name, e - desc->enums, param->name);
good = false;
}
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 1b3f3b67d9f0270382b8b498b500b78d7797859c..ec5d9953dfb6413fe5f8d507c58e965911a2a4c3 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -1014,7 +1014,7 @@ static int fuse_bdi_init(struct fuse_conn *fc, struct super_block *sb)
if (err)
return err;
- sb->s_bdi->ra_pages = (VM_MAX_READAHEAD * 1024) / PAGE_SIZE;
+ sb->s_bdi->ra_pages = VM_READAHEAD_PAGES;
/* fuse does it's own writeback accounting */
sb->s_bdi->capabilities = BDI_CAP_NO_ACCT_WB | BDI_CAP_STRICTLIMIT;
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 8832679d09b1449b2e9e4df567a32d7dfbbb36a3..e2bd77da5e21b9420be4599434769d435faa96c8 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -923,7 +923,7 @@ static void io_async_list_note(int rw, struct io_kiocb *req, size_t len)
/* Use 8x RA size as a decent limiter for both reads/writes */
max_pages = filp->f_ra.ra_pages;
if (!max_pages)
- max_pages = VM_MAX_READAHEAD >> (PAGE_SHIFT - 10);
+ max_pages = VM_READAHEAD_PAGES;
max_pages *= 8;
/* If max pages are exceeded, reset the state */
diff --git a/fs/proc/base.c b/fs/proc/base.c
index e89bdc2b3821c8f831ee1d843e18c3e7e4e69b89..ddef482f133406737e09e5df4966aea9b6ec06aa 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -59,6 +59,7 @@
#include <linux/capability.h>
#include <linux/file.h>
#include <linux/fdtable.h>
+#include <linux/generic-radix-tree.h>
#include <linux/string.h>
#include <linux/seq_file.h>
#include <linux/namei.h>
@@ -92,7 +93,6 @@
#include <linux/sched/coredump.h>
#include <linux/sched/debug.h>
#include <linux/sched/stat.h>
-#include <linux/flex_array.h>
#include <linux/posix-timers.h>
#include <trace/events/oom.h>
#include "internal.h"
@@ -2142,11 +2142,12 @@ proc_map_files_readdir(struct file *file, struct dir_context *ctx)
struct task_struct *task;
struct mm_struct *mm;
unsigned long nr_files, pos, i;
- struct flex_array *fa = NULL;
- struct map_files_info info;
+ GENRADIX(struct map_files_info) fa;
struct map_files_info *p;
int ret;
+ genradix_init(&fa);
+
ret = -ENOENT;
task = get_proc_task(file_inode(file));
if (!task)
@@ -2178,35 +2179,22 @@ proc_map_files_readdir(struct file *file, struct dir_context *ctx)
*/
for (vma = mm->mmap, pos = 2; vma; vma = vma->vm_next) {
- if (vma->vm_file && ++pos > ctx->pos)
- nr_files++;
- }
+ if (!vma->vm_file)
+ continue;
+ if (++pos <= ctx->pos)
+ continue;
- if (nr_files) {
- fa = flex_array_alloc(sizeof(info), nr_files,
- GFP_KERNEL);
- if (!fa || flex_array_prealloc(fa, 0, nr_files,
- GFP_KERNEL)) {
+ p = genradix_ptr_alloc(&fa, nr_files++, GFP_KERNEL);
+ if (!p) {
ret = -ENOMEM;
- if (fa)
- flex_array_free(fa);
up_read(&mm->mmap_sem);
mmput(mm);
goto out_put_task;
}
- for (i = 0, vma = mm->mmap, pos = 2; vma;
- vma = vma->vm_next) {
- if (!vma->vm_file)
- continue;
- if (++pos <= ctx->pos)
- continue;
- info.start = vma->vm_start;
- info.end = vma->vm_end;
- info.mode = vma->vm_file->f_mode;
- if (flex_array_put(fa, i++, &info, GFP_KERNEL))
- BUG();
- }
+ p->start = vma->vm_start;
+ p->end = vma->vm_end;
+ p->mode = vma->vm_file->f_mode;
}
up_read(&mm->mmap_sem);
mmput(mm);
@@ -2215,7 +2203,7 @@ proc_map_files_readdir(struct file *file, struct dir_context *ctx)
char buf[4 * sizeof(long) + 2]; /* max: %lx-%lx\0 */
unsigned int len;
- p = flex_array_get(fa, i);
+ p = genradix_ptr(&fa, i);
len = snprintf(buf, sizeof(buf), "%lx-%lx", p->start, p->end);
if (!proc_fill_cache(file, ctx,
buf, len,
@@ -2225,12 +2213,11 @@ proc_map_files_readdir(struct file *file, struct dir_context *ctx)
break;
ctx->pos++;
}
- if (fa)
- flex_array_free(fa);
out_put_task:
put_task_struct(task);
out:
+ genradix_free(&fa);
return ret;
}
@@ -2459,11 +2446,10 @@ static struct dentry *proc_pident_instantiate(struct dentry *dentry,
static struct dentry *proc_pident_lookup(struct inode *dir,
struct dentry *dentry,
- const struct pid_entry *ents,
- unsigned int nents)
+ const struct pid_entry *p,
+ const struct pid_entry *end)
{
struct task_struct *task = get_proc_task(dir);
- const struct pid_entry *p, *last;
struct dentry *res = ERR_PTR(-ENOENT);
if (!task)
@@ -2473,8 +2459,7 @@ static struct dentry *proc_pident_lookup(struct inode *dir,
* Yes, it does not scale. And it should not. Don't add
* new entries into /proc/<tgid>/ without very good reasons.
*/
- last = &ents[nents];
- for (p = ents; p < last; p++) {
+ for (; p < end; p++) {
if (p->len != dentry->d_name.len)
continue;
if (!memcmp(dentry->d_name.name, p->name, p->len)) {
@@ -2610,7 +2595,7 @@ static struct dentry *proc_##LSM##_attr_dir_lookup(struct inode *dir, \
{ \
return proc_pident_lookup(dir, dentry, \
LSM##_attr_dir_stuff, \
- ARRAY_SIZE(LSM##_attr_dir_stuff)); \
+ LSM##_attr_dir_stuff + ARRAY_SIZE(LSM##_attr_dir_stuff)); \
} \
\
static const struct inode_operations proc_##LSM##_attr_dir_inode_ops = { \
@@ -2655,7 +2640,8 @@ static struct dentry *proc_attr_dir_lookup(struct inode *dir,
struct dentry *dentry, unsigned int flags)
{
return proc_pident_lookup(dir, dentry,
- attr_dir_stuff, ARRAY_SIZE(attr_dir_stuff));
+ attr_dir_stuff,
+ attr_dir_stuff + ARRAY_SIZE(attr_dir_stuff));
}
static const struct inode_operations proc_attr_dir_inode_operations = {
@@ -3100,7 +3086,8 @@ struct pid *tgid_pidfd_to_pid(const struct file *file)
static struct dentry *proc_tgid_base_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
{
return proc_pident_lookup(dir, dentry,
- tgid_base_stuff, ARRAY_SIZE(tgid_base_stuff));
+ tgid_base_stuff,
+ tgid_base_stuff + ARRAY_SIZE(tgid_base_stuff));
}
static const struct inode_operations proc_tgid_base_inode_operations = {
@@ -3472,7 +3459,8 @@ static int proc_tid_base_readdir(struct file *file, struct dir_context *ctx)
static struct dentry *proc_tid_base_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
{
return proc_pident_lookup(dir, dentry,
- tid_base_stuff, ARRAY_SIZE(tid_base_stuff));
+ tid_base_stuff,
+ tid_base_stuff + ARRAY_SIZE(tid_base_stuff));
}
static const struct file_operations proc_tid_base_operations = {
diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
index 1c70803e9f77056873e18aad6e1f3ce7195a25a1..53669fdd5fad9fcd35175b0b5e55502f05722090 100644
--- a/include/linux/cgroup-defs.h
+++ b/include/linux/cgroup-defs.h
@@ -83,6 +83,11 @@ enum {
* Enable cpuset controller in v1 cgroup to use v2 behavior.
*/
CGRP_ROOT_CPUSET_V2_MODE = (1 << 4),
+
+ /*
+ * Enable legacy local memory.events.
+ */
+ CGRP_ROOT_MEMORY_LOCAL_EVENTS = (1 << 5),
};
/* cftype->flags */
diff --git a/include/linux/flex_array.h b/include/linux/flex_array.h
deleted file mode 100644
index b94fa61b51fb30d290b357e18dce124068679afb..0000000000000000000000000000000000000000
--- a/include/linux/flex_array.h
+++ /dev/null
@@ -1,149 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _FLEX_ARRAY_H
-#define _FLEX_ARRAY_H
-
-#include <linux/types.h>
-#include <linux/reciprocal_div.h>
-#include <asm/page.h>
-
-#define FLEX_ARRAY_PART_SIZE PAGE_SIZE
-#define FLEX_ARRAY_BASE_SIZE PAGE_SIZE
-
-struct flex_array_part;
-
-/*
- * This is meant to replace cases where an array-like
- * structure has gotten too big to fit into kmalloc()
- * and the developer is getting tempted to use
- * vmalloc().
- */
-
-struct flex_array {
- union {
- struct {
- int element_size;
- int total_nr_elements;
- int elems_per_part;
- struct reciprocal_value reciprocal_elems;
- struct flex_array_part *parts[];
- };
- /*
- * This little trick makes sure that
- * sizeof(flex_array) == PAGE_SIZE
- */
- char padding[FLEX_ARRAY_BASE_SIZE];
- };
-};
-
-/* Number of bytes left in base struct flex_array, excluding metadata */
-#define FLEX_ARRAY_BASE_BYTES_LEFT \
- (FLEX_ARRAY_BASE_SIZE - offsetof(struct flex_array, parts))
-
-/* Number of pointers in base to struct flex_array_part pages */
-#define FLEX_ARRAY_NR_BASE_PTRS \
- (FLEX_ARRAY_BASE_BYTES_LEFT / sizeof(struct flex_array_part *))
-
-/* Number of elements of size that fit in struct flex_array_part */
-#define FLEX_ARRAY_ELEMENTS_PER_PART(size) \
- (FLEX_ARRAY_PART_SIZE / size)
-
-/*
- * Defines a statically allocated flex array and ensures its parameters are
- * valid.
- */
-#define DEFINE_FLEX_ARRAY(__arrayname, __element_size, __total) \
- struct flex_array __arrayname = { { { \
- .element_size = (__element_size), \
- .total_nr_elements = (__total), \
- } } }; \
- static inline void __arrayname##_invalid_parameter(void) \
- { \
- BUILD_BUG_ON((__total) > FLEX_ARRAY_NR_BASE_PTRS * \
- FLEX_ARRAY_ELEMENTS_PER_PART(__element_size)); \
- }
-
-/**
- * flex_array_alloc() - Creates a flexible array.
- * @element_size: individual object size.
- * @total: maximum number of objects which can be stored.
- * @flags: GFP flags
- *
- * Return: Returns an object of structure flex_array.
- */
-struct flex_array *flex_array_alloc(int element_size, unsigned int total,
- gfp_t flags);
-
-/**
- * flex_array_prealloc() - Ensures that memory for the elements indexed in the
- * range defined by start and nr_elements has been allocated.
- * @fa: array to allocate memory to.
- * @start: start address
- * @nr_elements: number of elements to be allocated.
- * @flags: GFP flags
- *
- */
-int flex_array_prealloc(struct flex_array *fa, unsigned int start,
- unsigned int nr_elements, gfp_t flags);
-
-/**
- * flex_array_free() - Removes all elements of a flexible array.
- * @fa: array to be freed.
- */
-void flex_array_free(struct flex_array *fa);
-
-/**
- * flex_array_free_parts() - Removes all elements of a flexible array, but
- * leaves the array itself in place.
- * @fa: array to be emptied.
- */
-void flex_array_free_parts(struct flex_array *fa);
-
-/**
- * flex_array_put() - Stores data into a flexible array.
- * @fa: array where element is to be stored.
- * @element_nr: position to copy, must be less than the maximum specified when
- * the array was created.
- * @src: data source to be copied into the array.
- * @flags: GFP flags
- *
- * Return: Returns zero on success, a negative error code otherwise.
- */
-int flex_array_put(struct flex_array *fa, unsigned int element_nr, void *src,
- gfp_t flags);
-
-/**
- * flex_array_clear() - Clears an individual element in the array, sets the
- * given element to FLEX_ARRAY_FREE.
- * @element_nr: element position to clear.
- * @fa: array to which element to be cleared belongs.
- *
- * Return: Returns zero on success, -EINVAL otherwise.
- */
-int flex_array_clear(struct flex_array *fa, unsigned int element_nr);
-
-/**
- * flex_array_get() - Retrieves data into a flexible array.
- *
- * @element_nr: Element position to retrieve data from.
- * @fa: array from which data is to be retrieved.
- *
- * Return: Returns a pointer to the data element, or NULL if that
- * particular element has never been allocated.
- */
-void *flex_array_get(struct flex_array *fa, unsigned int element_nr);
-
-/**
- * flex_array_shrink() - Reduces the allocated size of an array.
- * @fa: array to shrink.
- *
- * Return: Returns number of pages of memory actually freed.
- *
- */
-int flex_array_shrink(struct flex_array *fa);
-
-#define flex_array_put_ptr(fa, nr, src, gfp) \
- flex_array_put(fa, nr, (void *)&(src), gfp)
-
-void *flex_array_get_ptr(struct flex_array *fa, unsigned int element_nr);
-
-#endif /* _FLEX_ARRAY_H */
diff --git a/include/linux/generic-radix-tree.h b/include/linux/generic-radix-tree.h
new file mode 100644
index 0000000000000000000000000000000000000000..3a91130a4fbd54040301f7da2baf4a242b14ab67
--- /dev/null
+++ b/include/linux/generic-radix-tree.h
@@ -0,0 +1,231 @@
+#ifndef _LINUX_GENERIC_RADIX_TREE_H
+#define _LINUX_GENERIC_RADIX_TREE_H
+
+/**
+ * DOC: Generic radix trees/sparse arrays:
+ *
+ * Very simple and minimalistic, supporting arbitrary size entries up to
+ * PAGE_SIZE.
+ *
+ * A genradix is defined with the type it will store, like so:
+ *
+ * static GENRADIX(struct foo) foo_genradix;
+ *
+ * The main operations are:
+ *
+ * - genradix_init(radix) - initialize an empty genradix
+ *
+ * - genradix_free(radix) - free all memory owned by the genradix and
+ * reinitialize it
+ *
+ * - genradix_ptr(radix, idx) - gets a pointer to the entry at idx, returning
+ * NULL if that entry does not exist
+ *
+ * - genradix_ptr_alloc(radix, idx, gfp) - gets a pointer to an entry,
+ * allocating it if necessary
+ *
+ * - genradix_for_each(radix, iter, p) - iterate over each entry in a genradix
+ *
+ * The radix tree allocates one page of entries at a time, so entries may exist
+ * that were never explicitly allocated - they will be initialized to all
+ * zeroes.
+ *
+ * Internally, a genradix is just a radix tree of pages, and indexing works in
+ * terms of byte offsets. The wrappers in this header file use sizeof on the
+ * type the radix contains to calculate a byte offset from the index - see
+ * __idx_to_offset.
+ */
+
+#include <asm/page.h>
+#include <linux/bug.h>
+#include <linux/kernel.h>
+#include <linux/log2.h>
+
+struct genradix_root;
+
+struct __genradix {
+ struct genradix_root __rcu *root;
+};
+
+/*
+ * NOTE: currently, sizeof(_type) must not be larger than PAGE_SIZE:
+ */
+
+#define __GENRADIX_INITIALIZER \
+ { \
+ .tree = { \
+ .root = NULL, \
+ } \
+ }
+
+/*
+ * We use a 0 size array to stash the type we're storing without taking any
+ * space at runtime - then the various accessor macros can use typeof() to get
+ * to it for casts/sizeof - we also force the alignment so that storing a type
+ * with a ridiculous alignment doesn't blow up the alignment or size of the
+ * genradix.
+ */
+
+#define GENRADIX(_type) \
+struct { \
+ struct __genradix tree; \
+ _type type[0] __aligned(1); \
+}
+
+#define DEFINE_GENRADIX(_name, _type) \
+ GENRADIX(_type) _name = __GENRADIX_INITIALIZER
+
+/**
+ * genradix_init - initialize a genradix
+ * @_radix: genradix to initialize
+ *
+ * Does not fail
+ */
+#define genradix_init(_radix) \
+do { \
+ *(_radix) = (typeof(*_radix)) __GENRADIX_INITIALIZER; \
+} while (0)
+
+void __genradix_free(struct __genradix *);
+
+/**
+ * genradix_free: free all memory owned by a genradix
+ * @_radix: the genradix to free
+ *
+ * After freeing, @_radix will be reinitialized and empty
+ */
+#define genradix_free(_radix) __genradix_free(&(_radix)->tree)
+
+static inline size_t __idx_to_offset(size_t idx, size_t obj_size)
+{
+ if (__builtin_constant_p(obj_size))
+ BUILD_BUG_ON(obj_size > PAGE_SIZE);
+ else
+ BUG_ON(obj_size > PAGE_SIZE);
+
+ if (!is_power_of_2(obj_size)) {
+ size_t objs_per_page = PAGE_SIZE / obj_size;
+
+ return (idx / objs_per_page) * PAGE_SIZE +
+ (idx % objs_per_page) * obj_size;
+ } else {
+ return idx * obj_size;
+ }
+}
+
+#define __genradix_cast(_radix) (typeof((_radix)->type[0]) *)
+#define __genradix_obj_size(_radix) sizeof((_radix)->type[0])
+#define __genradix_idx_to_offset(_radix, _idx) \
+ __idx_to_offset(_idx, __genradix_obj_size(_radix))
+
+void *__genradix_ptr(struct __genradix *, size_t);
+
+/**
+ * genradix_ptr - get a pointer to a genradix entry
+ * @_radix: genradix to access
+ * @_idx: index to fetch
+ *
+ * Returns a pointer to entry at @_idx, or NULL if that entry does not exist.
+ */
+#define genradix_ptr(_radix, _idx) \
+ (__genradix_cast(_radix) \
+ __genradix_ptr(&(_radix)->tree, \
+ __genradix_idx_to_offset(_radix, _idx)))
+
+void *__genradix_ptr_alloc(struct __genradix *, size_t, gfp_t);
+
+/**
+ * genradix_ptr_alloc - get a pointer to a genradix entry, allocating it
+ * if necessary
+ * @_radix: genradix to access
+ * @_idx: index to fetch
+ * @_gfp: gfp mask
+ *
+ * Returns a pointer to entry at @_idx, or NULL on allocation failure
+ */
+#define genradix_ptr_alloc(_radix, _idx, _gfp) \
+ (__genradix_cast(_radix) \
+ __genradix_ptr_alloc(&(_radix)->tree, \
+ __genradix_idx_to_offset(_radix, _idx), \
+ _gfp))
+
+struct genradix_iter {
+ size_t offset;
+ size_t pos;
+};
+
+/**
+ * genradix_iter_init - initialize a genradix_iter
+ * @_radix: genradix that will be iterated over
+ * @_idx: index to start iterating from
+ */
+#define genradix_iter_init(_radix, _idx) \
+ ((struct genradix_iter) { \
+ .pos = (_idx), \
+ .offset = __genradix_idx_to_offset((_radix), (_idx)),\
+ })
+
+void *__genradix_iter_peek(struct genradix_iter *, struct __genradix *, size_t);
+
+/**
+ * genradix_iter_peek - get first entry at or above iterator's current
+ * position
+ * @_iter: a genradix_iter
+ * @_radix: genradix being iterated over
+ *
+ * If no more entries exist at or above @_iter's current position, returns NULL
+ */
+#define genradix_iter_peek(_iter, _radix) \
+ (__genradix_cast(_radix) \
+ __genradix_iter_peek(_iter, &(_radix)->tree, \
+ PAGE_SIZE / __genradix_obj_size(_radix)))
+
+static inline void __genradix_iter_advance(struct genradix_iter *iter,
+ size_t obj_size)
+{
+ iter->offset += obj_size;
+
+ if (!is_power_of_2(obj_size) &&
+ (iter->offset & (PAGE_SIZE - 1)) + obj_size > PAGE_SIZE)
+ iter->offset = round_up(iter->offset, PAGE_SIZE);
+
+ iter->pos++;
+}
+
+#define genradix_iter_advance(_iter, _radix) \
+ __genradix_iter_advance(_iter, __genradix_obj_size(_radix))
+
+#define genradix_for_each_from(_radix, _iter, _p, _start) \
+ for (_iter = genradix_iter_init(_radix, _start); \
+ (_p = genradix_iter_peek(&_iter, _radix)) != NULL; \
+ genradix_iter_advance(&_iter, _radix))
+
+/**
+ * genradix_for_each - iterate over entry in a genradix
+ * @_radix: genradix to iterate over
+ * @_iter: a genradix_iter to track current position
+ * @_p: pointer to genradix entry type
+ *
+ * On every iteration, @_p will point to the current entry, and @_iter.pos
+ * will be the current entry's index.
+ */
+#define genradix_for_each(_radix, _iter, _p) \
+ genradix_for_each_from(_radix, _iter, _p, 0)
+
+int __genradix_prealloc(struct __genradix *, size_t, gfp_t);
+
+/**
+ * genradix_prealloc - preallocate entries in a generic radix tree
+ * @_radix: genradix to preallocate
+ * @_nr: number of entries to preallocate
+ * @_gfp: gfp mask
+ *
+ * Returns 0 on success, -ENOMEM on failure
+ */
+#define genradix_prealloc(_radix, _nr, _gfp) \
+ __genradix_prealloc(&(_radix)->tree, \
+ __genradix_idx_to_offset(_radix, _nr + 1),\
+ _gfp)
+
+
+#endif /* _LINUX_GENERIC_RADIX_TREE_H */
diff --git a/include/linux/hmm.h b/include/linux/hmm.h
index 4a1454e3efbadf0dbf0af5d5d56ce25d9cfc1a2c..7aadf18b29cbdf910efa5dad1e8b3822f7ca5b5c 100644
--- a/include/linux/hmm.h
+++ b/include/linux/hmm.h
@@ -704,7 +704,7 @@ struct hmm_devmem_ops {
* Note that mmap semaphore is held in read mode at least when this
* callback occurs, hence the vma is valid upon callback entry.
*/
- int (*fault)(struct hmm_devmem *devmem,
+ vm_fault_t (*fault)(struct hmm_devmem *devmem,
struct vm_area_struct *vma,
unsigned long addr,
const struct page *page,
@@ -747,7 +747,7 @@ struct hmm_devmem_ops {
* chunk, as an optimization. It must, however, prioritize the faulting address
* over all the others.
*/
-typedef int (*dev_page_fault_t)(struct vm_area_struct *vma,
+typedef vm_fault_t (*dev_page_fault_t)(struct vm_area_struct *vma,
unsigned long addr,
const struct page *page,
unsigned int flags,
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index eb9ac119a8751d3fb6906f658f00155da11ef7f0..47e3c0612592aa957c7610d55d392296cde66fed 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -108,9 +108,6 @@ void memblock_discard(void);
#define memblock_dbg(fmt, ...) \
if (memblock_debug) printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
-phys_addr_t memblock_find_in_range_node(phys_addr_t size, phys_addr_t align,
- phys_addr_t start, phys_addr_t end,
- int nid, enum memblock_flags flags);
phys_addr_t memblock_find_in_range(phys_addr_t start, phys_addr_t end,
phys_addr_t size, phys_addr_t align);
void memblock_allow_resize(void);
@@ -127,7 +124,6 @@ int memblock_clear_hotplug(phys_addr_t base, phys_addr_t size);
int memblock_mark_mirror(phys_addr_t base, phys_addr_t size);
int memblock_mark_nomap(phys_addr_t base, phys_addr_t size);
int memblock_clear_nomap(phys_addr_t base, phys_addr_t size);
-enum memblock_flags choose_memblock_flags(void);
unsigned long memblock_free_all(void);
void reset_node_managed_pages(pg_data_t *pgdat);
@@ -318,18 +314,6 @@ void __next_mem_pfn_range_in_zone(u64 *idx, struct zone *zone,
for_each_mem_range_rev(i, &memblock.memory, &memblock.reserved, \
nid, flags, p_start, p_end, p_nid)
-static inline void memblock_set_region_flags(struct memblock_region *r,
- enum memblock_flags flags)
-{
- r->flags |= flags;
-}
-
-static inline void memblock_clear_region_flags(struct memblock_region *r,
- enum memblock_flags flags)
-{
- r->flags &= ~flags;
-}
-
#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
int memblock_set_node(phys_addr_t base, phys_addr_t size,
struct memblock_type *type, int nid);
@@ -366,17 +350,20 @@ static inline int memblock_get_region_node(const struct memblock_region *r)
#define ARCH_LOW_ADDRESS_LIMIT 0xffffffffUL
#endif
-phys_addr_t memblock_phys_alloc_nid(phys_addr_t size, phys_addr_t align, int nid);
+phys_addr_t memblock_phys_alloc_range(phys_addr_t size, phys_addr_t align,
+ phys_addr_t start, phys_addr_t end);
phys_addr_t memblock_phys_alloc_try_nid(phys_addr_t size, phys_addr_t align, int nid);
-phys_addr_t memblock_phys_alloc(phys_addr_t size, phys_addr_t align);
+static inline phys_addr_t memblock_phys_alloc(phys_addr_t size,
+ phys_addr_t align)
+{
+ return memblock_phys_alloc_range(size, align, 0,
+ MEMBLOCK_ALLOC_ACCESSIBLE);
+}
void *memblock_alloc_try_nid_raw(phys_addr_t size, phys_addr_t align,
phys_addr_t min_addr, phys_addr_t max_addr,
int nid);
-void *memblock_alloc_try_nid_nopanic(phys_addr_t size, phys_addr_t align,
- phys_addr_t min_addr, phys_addr_t max_addr,
- int nid);
void *memblock_alloc_try_nid(phys_addr_t size, phys_addr_t align,
phys_addr_t min_addr, phys_addr_t max_addr,
int nid);
@@ -403,36 +390,12 @@ static inline void * __init memblock_alloc_from(phys_addr_t size,
MEMBLOCK_ALLOC_ACCESSIBLE, NUMA_NO_NODE);
}
-static inline void * __init memblock_alloc_nopanic(phys_addr_t size,
- phys_addr_t align)
-{
- return memblock_alloc_try_nid_nopanic(size, align, MEMBLOCK_LOW_LIMIT,
- MEMBLOCK_ALLOC_ACCESSIBLE,
- NUMA_NO_NODE);
-}
-
static inline void * __init memblock_alloc_low(phys_addr_t size,
phys_addr_t align)
{
return memblock_alloc_try_nid(size, align, MEMBLOCK_LOW_LIMIT,
ARCH_LOW_ADDRESS_LIMIT, NUMA_NO_NODE);
}
-static inline void * __init memblock_alloc_low_nopanic(phys_addr_t size,
- phys_addr_t align)
-{
- return memblock_alloc_try_nid_nopanic(size, align, MEMBLOCK_LOW_LIMIT,
- ARCH_LOW_ADDRESS_LIMIT,
- NUMA_NO_NODE);
-}
-
-static inline void * __init memblock_alloc_from_nopanic(phys_addr_t size,
- phys_addr_t align,
- phys_addr_t min_addr)
-{
- return memblock_alloc_try_nid_nopanic(size, align, min_addr,
- MEMBLOCK_ALLOC_ACCESSIBLE,
- NUMA_NO_NODE);
-}
static inline void * __init memblock_alloc_node(phys_addr_t size,
phys_addr_t align, int nid)
@@ -441,14 +404,6 @@ static inline void * __init memblock_alloc_node(phys_addr_t size,
MEMBLOCK_ALLOC_ACCESSIBLE, nid);
}
-static inline void * __init memblock_alloc_node_nopanic(phys_addr_t size,
- int nid)
-{
- return memblock_alloc_try_nid_nopanic(size, SMP_CACHE_BYTES,
- MEMBLOCK_LOW_LIMIT,
- MEMBLOCK_ALLOC_ACCESSIBLE, nid);
-}
-
static inline void __init memblock_free_early(phys_addr_t base,
phys_addr_t size)
{
@@ -484,16 +439,6 @@ static inline bool memblock_bottom_up(void)
return memblock.bottom_up;
}
-phys_addr_t __init memblock_alloc_range(phys_addr_t size, phys_addr_t align,
- phys_addr_t start, phys_addr_t end,
- enum memblock_flags flags);
-phys_addr_t memblock_alloc_base_nid(phys_addr_t size,
- phys_addr_t align, phys_addr_t max_addr,
- int nid, enum memblock_flags flags);
-phys_addr_t memblock_alloc_base(phys_addr_t size, phys_addr_t align,
- phys_addr_t max_addr);
-phys_addr_t __memblock_alloc_base(phys_addr_t size, phys_addr_t align,
- phys_addr_t max_addr);
phys_addr_t memblock_phys_mem_size(void);
phys_addr_t memblock_reserved_size(void);
phys_addr_t memblock_mem_size(unsigned long limit_pfn);
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 1803abfd7c00f7bc53f5d5f01df78a9f30b8df33..5342679476642eba2022f67813b29ce2e80becd0 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -94,8 +94,8 @@ enum mem_cgroup_events_target {
MEM_CGROUP_NTARGETS,
};
-struct mem_cgroup_stat_cpu {
- long count[MEMCG_NR_STAT];
+struct memcg_vmstats_percpu {
+ long stat[MEMCG_NR_STAT];
unsigned long events[NR_VM_EVENT_ITEMS];
unsigned long nr_page_events;
unsigned long targets[MEM_CGROUP_NTARGETS];
@@ -274,12 +274,12 @@ struct mem_cgroup {
struct task_struct *move_lock_task;
/* memory.stat */
- struct mem_cgroup_stat_cpu __percpu *stat_cpu;
+ struct memcg_vmstats_percpu __percpu *vmstats_percpu;
MEMCG_PADDING(_pad2_);
- atomic_long_t stat[MEMCG_NR_STAT];
- atomic_long_t events[NR_VM_EVENT_ITEMS];
+ atomic_long_t vmstats[MEMCG_NR_STAT];
+ atomic_long_t vmevents[NR_VM_EVENT_ITEMS];
atomic_long_t memory_events[MEMCG_NR_MEMORY_EVENTS];
unsigned long socket_pressure;
@@ -585,7 +585,7 @@ void unlock_page_memcg(struct page *page);
static inline unsigned long memcg_page_state(struct mem_cgroup *memcg,
int idx)
{
- long x = atomic_long_read(&memcg->stat[idx]);
+ long x = atomic_long_read(&memcg->vmstats[idx]);
#ifdef CONFIG_SMP
if (x < 0)
x = 0;
@@ -602,12 +602,12 @@ static inline void __mod_memcg_state(struct mem_cgroup *memcg,
if (mem_cgroup_disabled())
return;
- x = val + __this_cpu_read(memcg->stat_cpu->count[idx]);
+ x = val + __this_cpu_read(memcg->vmstats_percpu->stat[idx]);
if (unlikely(abs(x) > MEMCG_CHARGE_BATCH)) {
- atomic_long_add(x, &memcg->stat[idx]);
+ atomic_long_add(x, &memcg->vmstats[idx]);
x = 0;
}
- __this_cpu_write(memcg->stat_cpu->count[idx], x);
+ __this_cpu_write(memcg->vmstats_percpu->stat[idx], x);
}
/* idx can be of type enum memcg_stat_item or node_stat_item */
@@ -745,12 +745,12 @@ static inline void __count_memcg_events(struct mem_cgroup *memcg,
if (mem_cgroup_disabled())
return;
- x = count + __this_cpu_read(memcg->stat_cpu->events[idx]);
+ x = count + __this_cpu_read(memcg->vmstats_percpu->events[idx]);
if (unlikely(x > MEMCG_CHARGE_BATCH)) {
- atomic_long_add(x, &memcg->events[idx]);
+ atomic_long_add(x, &memcg->vmevents[idx]);
x = 0;
}
- __this_cpu_write(memcg->stat_cpu->events[idx], x);
+ __this_cpu_write(memcg->vmstats_percpu->events[idx], x);
}
static inline void count_memcg_events(struct mem_cgroup *memcg,
@@ -789,8 +789,14 @@ static inline void count_memcg_event_mm(struct mm_struct *mm,
static inline void memcg_memory_event(struct mem_cgroup *memcg,
enum memcg_memory_event event)
{
- atomic_long_inc(&memcg->memory_events[event]);
- cgroup_file_notify(&memcg->events_file);
+ do {
+ atomic_long_inc(&memcg->memory_events[event]);
+ cgroup_file_notify(&memcg->events_file);
+
+ if (cgrp_dfl_root.flags & CGRP_ROOT_MEMORY_LOCAL_EVENTS)
+ break;
+ } while ((memcg = parent_mem_cgroup(memcg)) &&
+ !mem_cgroup_is_root(memcg));
}
static inline void memcg_memory_event_mm(struct mm_struct *mm,
diff --git a/include/linux/mm.h b/include/linux/mm.h
index b4bc886016c907cb61ef2e52064a356666d8de86..2d483dbdffc004fc1862ee959f877c7619a3424e 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -26,6 +26,7 @@
#include <linux/page_ref.h>
#include <linux/memremap.h>
#include <linux/overflow.h>
+#include <linux/sizes.h>
struct mempolicy;
struct anon_vma;
@@ -1361,52 +1362,6 @@ static inline void clear_page_pfmemalloc(struct page *page)
page->index = 0;
}
-/*
- * Different kinds of faults, as returned by handle_mm_fault().
- * Used to decide whether a process gets delivered SIGBUS or
- * just gets major/minor fault counters bumped up.
- */
-
-#define VM_FAULT_OOM 0x0001
-#define VM_FAULT_SIGBUS 0x0002
-#define VM_FAULT_MAJOR 0x0004
-#define VM_FAULT_WRITE 0x0008 /* Special case for get_user_pages */
-#define VM_FAULT_HWPOISON 0x0010 /* Hit poisoned small page */
-#define VM_FAULT_HWPOISON_LARGE 0x0020 /* Hit poisoned large page. Index encoded in upper bits */
-#define VM_FAULT_SIGSEGV 0x0040
-
-#define VM_FAULT_NOPAGE 0x0100 /* ->fault installed the pte, not return page */
-#define VM_FAULT_LOCKED 0x0200 /* ->fault locked the returned page */
-#define VM_FAULT_RETRY 0x0400 /* ->fault blocked, must retry */
-#define VM_FAULT_FALLBACK 0x0800 /* huge page fault failed, fall back to small */
-#define VM_FAULT_DONE_COW 0x1000 /* ->fault has fully handled COW */
-#define VM_FAULT_NEEDDSYNC 0x2000 /* ->fault did not modify page tables
- * and needs fsync() to complete (for
- * synchronous page faults in DAX) */
-
-#define VM_FAULT_ERROR (VM_FAULT_OOM | VM_FAULT_SIGBUS | VM_FAULT_SIGSEGV | \
- VM_FAULT_HWPOISON | VM_FAULT_HWPOISON_LARGE | \
- VM_FAULT_FALLBACK)
-
-#define VM_FAULT_RESULT_TRACE \
- { VM_FAULT_OOM, "OOM" }, \
- { VM_FAULT_SIGBUS, "SIGBUS" }, \
- { VM_FAULT_MAJOR, "MAJOR" }, \
- { VM_FAULT_WRITE, "WRITE" }, \
- { VM_FAULT_HWPOISON, "HWPOISON" }, \
- { VM_FAULT_HWPOISON_LARGE, "HWPOISON_LARGE" }, \
- { VM_FAULT_SIGSEGV, "SIGSEGV" }, \
- { VM_FAULT_NOPAGE, "NOPAGE" }, \
- { VM_FAULT_LOCKED, "LOCKED" }, \
- { VM_FAULT_RETRY, "RETRY" }, \
- { VM_FAULT_FALLBACK, "FALLBACK" }, \
- { VM_FAULT_DONE_COW, "DONE_COW" }, \
- { VM_FAULT_NEEDDSYNC, "NEEDDSYNC" }
-
-/* Encode hstate index for a hwpoisoned large page */
-#define VM_FAULT_SET_HINDEX(x) ((x) << 12)
-#define VM_FAULT_GET_HINDEX(x) (((x) >> 12) & 0xf)
-
/*
* Can be called by the pagefault handler when it gets a VM_FAULT_OOM.
*/
@@ -2487,8 +2442,7 @@ int __must_check write_one_page(struct page *page);
void task_dirty_inc(struct task_struct *tsk);
/* readahead.c */
-#define VM_MAX_READAHEAD 128 /* kbytes */
-#define VM_MIN_READAHEAD 16 /* kbytes (includes current page) */
+#define VM_READAHEAD_PAGES (SZ_128K / PAGE_SIZE)
int force_page_cache_readahead(struct address_space *mapping, struct file *filp,
pgoff_t offset, unsigned long nr_to_read);
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 0ded25d7722e13bb86b4973cd307e2f40083b904..9b9dd8350e26c5aa230e779ee165eb7f7f61afba 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -22,7 +22,6 @@
#endif
#define AT_VECTOR_SIZE (2*(AT_VECTOR_SIZE_ARCH + AT_VECTOR_SIZE_BASE + 1))
-typedef int vm_fault_t;
struct address_space;
struct mem_cgroup;
@@ -624,6 +623,78 @@ static inline bool mm_tlb_flush_nested(struct mm_struct *mm)
struct vm_fault;
+/**
+ * typedef vm_fault_t - Return type for page fault handlers.
+ *
+ * Page fault handlers return a bitmask of %VM_FAULT values.
+ */
+typedef __bitwise unsigned int vm_fault_t;
+
+/**
+ * enum vm_fault_reason - Page fault handlers return a bitmask of
+ * these values to tell the core VM what happened when handling the
+ * fault. Used to decide whether a process gets delivered SIGBUS or
+ * just gets major/minor fault counters bumped up.
+ *
+ * @VM_FAULT_OOM: Out Of Memory
+ * @VM_FAULT_SIGBUS: Bad access
+ * @VM_FAULT_MAJOR: Page read from storage
+ * @VM_FAULT_WRITE: Special case for get_user_pages
+ * @VM_FAULT_HWPOISON: Hit poisoned small page
+ * @VM_FAULT_HWPOISON_LARGE: Hit poisoned large page. Index encoded
+ * in upper bits
+ * @VM_FAULT_SIGSEGV: segmentation fault
+ * @VM_FAULT_NOPAGE: ->fault installed the pte, not return page
+ * @VM_FAULT_LOCKED: ->fault locked the returned page
+ * @VM_FAULT_RETRY: ->fault blocked, must retry
+ * @VM_FAULT_FALLBACK: huge page fault failed, fall back to small
+ * @VM_FAULT_DONE_COW: ->fault has fully handled COW
+ * @VM_FAULT_NEEDDSYNC: ->fault did not modify page tables and needs
+ * fsync() to complete (for synchronous page faults
+ * in DAX)
+ * @VM_FAULT_HINDEX_MASK: mask HINDEX value
+ *
+ */
+enum vm_fault_reason {
+ VM_FAULT_OOM = (__force vm_fault_t)0x000001,
+ VM_FAULT_SIGBUS = (__force vm_fault_t)0x000002,
+ VM_FAULT_MAJOR = (__force vm_fault_t)0x000004,
+ VM_FAULT_WRITE = (__force vm_fault_t)0x000008,
+ VM_FAULT_HWPOISON = (__force vm_fault_t)0x000010,
+ VM_FAULT_HWPOISON_LARGE = (__force vm_fault_t)0x000020,
+ VM_FAULT_SIGSEGV = (__force vm_fault_t)0x000040,
+ VM_FAULT_NOPAGE = (__force vm_fault_t)0x000100,
+ VM_FAULT_LOCKED = (__force vm_fault_t)0x000200,
+ VM_FAULT_RETRY = (__force vm_fault_t)0x000400,
+ VM_FAULT_FALLBACK = (__force vm_fault_t)0x000800,
+ VM_FAULT_DONE_COW = (__force vm_fault_t)0x001000,
+ VM_FAULT_NEEDDSYNC = (__force vm_fault_t)0x002000,
+ VM_FAULT_HINDEX_MASK = (__force vm_fault_t)0x0f0000,
+};
+
+/* Encode hstate index for a hwpoisoned large page */
+#define VM_FAULT_SET_HINDEX(x) ((__force vm_fault_t)((x) << 16))
+#define VM_FAULT_GET_HINDEX(x) (((x) >> 16) & 0xf)
+
+#define VM_FAULT_ERROR (VM_FAULT_OOM | VM_FAULT_SIGBUS | \
+ VM_FAULT_SIGSEGV | VM_FAULT_HWPOISON | \
+ VM_FAULT_HWPOISON_LARGE | VM_FAULT_FALLBACK)
+
+#define VM_FAULT_RESULT_TRACE \
+ { VM_FAULT_OOM, "OOM" }, \
+ { VM_FAULT_SIGBUS, "SIGBUS" }, \
+ { VM_FAULT_MAJOR, "MAJOR" }, \
+ { VM_FAULT_WRITE, "WRITE" }, \
+ { VM_FAULT_HWPOISON, "HWPOISON" }, \
+ { VM_FAULT_HWPOISON_LARGE, "HWPOISON_LARGE" }, \
+ { VM_FAULT_SIGSEGV, "SIGSEGV" }, \
+ { VM_FAULT_NOPAGE, "NOPAGE" }, \
+ { VM_FAULT_LOCKED, "LOCKED" }, \
+ { VM_FAULT_RETRY, "RETRY" }, \
+ { VM_FAULT_FALLBACK, "FALLBACK" }, \
+ { VM_FAULT_DONE_COW, "DONE_COW" }, \
+ { VM_FAULT_NEEDDSYNC, "NEEDDSYNC" }
+
struct vm_special_mapping {
const char *name; /* The name, e.g. "[vdso]". */
diff --git a/include/linux/poison.h b/include/linux/poison.h
index 5046bad0c1c5e6c9418d3f10e7d15ff2004abe99..d6d980a681c7fbfdf4f5740694e99fe5f0b08fde 100644
--- a/include/linux/poison.h
+++ b/include/linux/poison.h
@@ -83,9 +83,6 @@
#define MUTEX_DEBUG_FREE 0x22
#define MUTEX_POISON_WW_CTX ((void *) 0x500 + POISON_POINTER_DELTA)
-/********** lib/flex_array.c **********/
-#define FLEX_ARRAY_FREE 0x6c /* for use-after-free poisoning */
-
/********** security/ **********/
#define KEY_DESTROY 0xbd
diff --git a/include/linux/relay.h b/include/linux/relay.h
index e1bdf01a86e2a25bd158def8d731bae43c6c6ae5..c759f96e39c18e7beeca4f8e2eca00f9ab68bca0 100644
--- a/include/linux/relay.h
+++ b/include/linux/relay.h
@@ -66,7 +66,7 @@ struct rchan
struct kref kref; /* channel refcount */
void *private_data; /* for user-defined data */
size_t last_toobig; /* tried to log event > subbuf size */
- struct rchan_buf ** __percpu buf; /* per-cpu channel buffers */
+ struct rchan_buf * __percpu *buf; /* per-cpu channel buffers */
int is_global; /* One global buffer ? */
struct list_head list; /* for channel list */
struct dentry *parent; /* parent dentry passed to open */
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
index e412c092c1e821edd18f0c9dc0ed734ced5d6234..38a0f0785323759dcf9c0dcdc8b0a897600c61e4 100644
--- a/include/linux/sched/signal.h
+++ b/include/linux/sched/signal.h
@@ -271,17 +271,18 @@ static inline int signal_group_exit(const struct signal_struct *sig)
extern void flush_signals(struct task_struct *);
extern void ignore_signals(struct task_struct *);
extern void flush_signal_handlers(struct task_struct *, int force_default);
-extern int dequeue_signal(struct task_struct *tsk, sigset_t *mask, kernel_siginfo_t *info);
+extern int dequeue_signal(struct task_struct *task,
+ sigset_t *mask, kernel_siginfo_t *info);
static inline int kernel_dequeue_signal(void)
{
- struct task_struct *tsk = current;
+ struct task_struct *task = current;
kernel_siginfo_t __info;
int ret;
- spin_lock_irq(&tsk->sighand->siglock);
- ret = dequeue_signal(tsk, &tsk->blocked, &__info);
- spin_unlock_irq(&tsk->sighand->siglock);
+ spin_lock_irq(&task->sighand->siglock);
+ ret = dequeue_signal(task, &task->blocked, &__info);
+ spin_unlock_irq(&task->sighand->siglock);
return ret;
}
@@ -419,18 +420,18 @@ static inline void set_restore_sigmask(void)
WARN_ON(!test_thread_flag(TIF_SIGPENDING));
}
-static inline void clear_tsk_restore_sigmask(struct task_struct *tsk)
+static inline void clear_tsk_restore_sigmask(struct task_struct *task)
{
- clear_tsk_thread_flag(tsk, TIF_RESTORE_SIGMASK);
+ clear_tsk_thread_flag(task, TIF_RESTORE_SIGMASK);
}
static inline void clear_restore_sigmask(void)
{
clear_thread_flag(TIF_RESTORE_SIGMASK);
}
-static inline bool test_tsk_restore_sigmask(struct task_struct *tsk)
+static inline bool test_tsk_restore_sigmask(struct task_struct *task)
{
- return test_tsk_thread_flag(tsk, TIF_RESTORE_SIGMASK);
+ return test_tsk_thread_flag(task, TIF_RESTORE_SIGMASK);
}
static inline bool test_restore_sigmask(void)
{
@@ -449,9 +450,9 @@ static inline void set_restore_sigmask(void)
current->restore_sigmask = true;
WARN_ON(!test_thread_flag(TIF_SIGPENDING));
}
-static inline void clear_tsk_restore_sigmask(struct task_struct *tsk)
+static inline void clear_tsk_restore_sigmask(struct task_struct *task)
{
- tsk->restore_sigmask = false;
+ task->restore_sigmask = false;
}
static inline void clear_restore_sigmask(void)
{
@@ -461,9 +462,9 @@ static inline bool test_restore_sigmask(void)
{
return current->restore_sigmask;
}
-static inline bool test_tsk_restore_sigmask(struct task_struct *tsk)
+static inline bool test_tsk_restore_sigmask(struct task_struct *task)
{
- return tsk->restore_sigmask;
+ return task->restore_sigmask;
}
static inline bool test_and_clear_restore_sigmask(void)
{
@@ -617,9 +618,9 @@ static inline struct pid *task_session(struct task_struct *task)
return task->signal->pids[PIDTYPE_SID];
}
-static inline int get_nr_threads(struct task_struct *tsk)
+static inline int get_nr_threads(struct task_struct *task)
{
- return tsk->signal->nr_threads;
+ return task->signal->nr_threads;
}
static inline bool thread_group_leader(struct task_struct *p)
@@ -658,35 +659,35 @@ static inline int thread_group_empty(struct task_struct *p)
#define delay_group_leader(p) \
(thread_group_leader(p) && !thread_group_empty(p))
-extern struct sighand_struct *__lock_task_sighand(struct task_struct *tsk,
+extern struct sighand_struct *__lock_task_sighand(struct task_struct *task,
unsigned long *flags);
-static inline struct sighand_struct *lock_task_sighand(struct task_struct *tsk,
+static inline struct sighand_struct *lock_task_sighand(struct task_struct *task,
unsigned long *flags)
{
struct sighand_struct *ret;
- ret = __lock_task_sighand(tsk, flags);
- (void)__cond_lock(&tsk->sighand->siglock, ret);
+ ret = __lock_task_sighand(task, flags);
+ (void)__cond_lock(&task->sighand->siglock, ret);
return ret;
}
-static inline void unlock_task_sighand(struct task_struct *tsk,
+static inline void unlock_task_sighand(struct task_struct *task,
unsigned long *flags)
{
- spin_unlock_irqrestore(&tsk->sighand->siglock, *flags);
+ spin_unlock_irqrestore(&task->sighand->siglock, *flags);
}
-static inline unsigned long task_rlimit(const struct task_struct *tsk,
+static inline unsigned long task_rlimit(const struct task_struct *task,
unsigned int limit)
{
- return READ_ONCE(tsk->signal->rlim[limit].rlim_cur);
+ return READ_ONCE(task->signal->rlim[limit].rlim_cur);
}
-static inline unsigned long task_rlimit_max(const struct task_struct *tsk,
+static inline unsigned long task_rlimit_max(const struct task_struct *task,
unsigned int limit)
{
- return READ_ONCE(tsk->signal->rlim[limit].rlim_max);
+ return READ_ONCE(task->signal->rlim[limit].rlim_max);
}
static inline unsigned long rlimit(unsigned int limit)
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 58e4b23cecf4352378379f6e2c859d54a00ea17b..140fd836a396735100dee7660b5ece5485cc2a15 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -48,6 +48,7 @@
#define __sctp_structs_h__
#include <linux/ktime.h>
+#include <linux/generic-radix-tree.h>
#include <linux/rhashtable-types.h>
#include <linux/socket.h> /* linux/in.h needs this!! */
#include <linux/in.h> /* We get struct sockaddr_in. */
@@ -57,7 +58,6 @@
#include <linux/atomic.h> /* This gets us atomic counters. */
#include <linux/skbuff.h> /* We need sk_buff_head. */
#include <linux/workqueue.h> /* We need tq_struct. */
-#include <linux/flex_array.h> /* We need flex_array. */
#include <linux/sctp.h> /* We need sctp* header structs. */
#include <net/sctp/auth.h> /* We need auth specific structs */
#include <net/ip.h> /* For inet_skb_parm */
@@ -1449,8 +1449,9 @@ struct sctp_stream_in {
};
struct sctp_stream {
- struct flex_array *out;
- struct flex_array *in;
+ GENRADIX(struct sctp_stream_out) out;
+ GENRADIX(struct sctp_stream_in) in;
+
__u16 outcnt;
__u16 incnt;
/* Current stream being sent, if any */
@@ -1473,17 +1474,17 @@ struct sctp_stream {
};
static inline struct sctp_stream_out *sctp_stream_out(
- const struct sctp_stream *stream,
+ struct sctp_stream *stream,
__u16 sid)
{
- return flex_array_get(stream->out, sid);
+ return genradix_ptr(&stream->out, sid);
}
static inline struct sctp_stream_in *sctp_stream_in(
- const struct sctp_stream *stream,
+ struct sctp_stream *stream,
__u16 sid)
{
- return flex_array_get(stream->in, sid);
+ return genradix_ptr(&stream->in, sid);
}
#define SCTP_SO(s, i) sctp_stream_out((s), (i))
diff --git a/init/main.c b/init/main.c
index c86a1c8f19f40be9508b7b979959bc57a47e70ce..598e278b46f743d777e6f9375ac1c932896ef99c 100644
--- a/init/main.c
+++ b/init/main.c
@@ -373,12 +373,20 @@ static inline void smp_prepare_cpus(unsigned int maxcpus) { }
*/
static void __init setup_command_line(char *command_line)
{
- saved_command_line =
- memblock_alloc(strlen(boot_command_line) + 1, SMP_CACHE_BYTES);
- initcall_command_line =
- memblock_alloc(strlen(boot_command_line) + 1, SMP_CACHE_BYTES);
- static_command_line = memblock_alloc(strlen(command_line) + 1,
- SMP_CACHE_BYTES);
+ size_t len = strlen(boot_command_line) + 1;
+
+ saved_command_line = memblock_alloc(len, SMP_CACHE_BYTES);
+ if (!saved_command_line)
+ panic("%s: Failed to allocate %zu bytes\n", __func__, len);
+
+ initcall_command_line = memblock_alloc(len, SMP_CACHE_BYTES);
+ if (!initcall_command_line)
+ panic("%s: Failed to allocate %zu bytes\n", __func__, len);
+
+ static_command_line = memblock_alloc(len, SMP_CACHE_BYTES);
+ if (!static_command_line)
+ panic("%s: Failed to allocate %zu bytes\n", __func__, len);
+
strcpy(saved_command_line, boot_command_line);
strcpy(static_command_line, command_line);
}
@@ -770,8 +778,14 @@ static int __init initcall_blacklist(char *str)
pr_debug("blacklisting initcall %s\n", str_entry);
entry = memblock_alloc(sizeof(*entry),
SMP_CACHE_BYTES);
+ if (!entry)
+ panic("%s: Failed to allocate %zu bytes\n",
+ __func__, sizeof(*entry));
entry->buf = memblock_alloc(strlen(str_entry) + 1,
SMP_CACHE_BYTES);
+ if (!entry->buf)
+ panic("%s: Failed to allocate %zu bytes\n",
+ __func__, strlen(str_entry) + 1);
strcpy(entry->buf, str_entry);
list_add(&entry->next, &blacklisted_initcalls);
}
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index 7adc9ac7c41353beb5f758fc63a5299f37f26b11..88db41950f167c2bc3775b8e6b0d4d1026c23d9a 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -1775,11 +1775,13 @@ int cgroup_show_path(struct seq_file *sf, struct kernfs_node *kf_node,
enum cgroup2_param {
Opt_nsdelegate,
+ Opt_memory_localevents,
nr__cgroup2_params
};
static const struct fs_parameter_spec cgroup2_param_specs[] = {
- fsparam_flag ("nsdelegate", Opt_nsdelegate),
+ fsparam_flag("nsdelegate", Opt_nsdelegate),
+ fsparam_flag("memory_localevents", Opt_memory_localevents),
{}
};
@@ -1802,6 +1804,9 @@ static int cgroup2_parse_param(struct fs_context *fc, struct fs_parameter *param
case Opt_nsdelegate:
ctx->flags |= CGRP_ROOT_NS_DELEGATE;
return 0;
+ case Opt_memory_localevents:
+ ctx->flags |= CGRP_ROOT_MEMORY_LOCAL_EVENTS;
+ return 0;
}
return -EINVAL;
}
@@ -1813,6 +1818,11 @@ static void apply_cgroup_root_flags(unsigned int root_flags)
cgrp_dfl_root.flags |= CGRP_ROOT_NS_DELEGATE;
else
cgrp_dfl_root.flags &= ~CGRP_ROOT_NS_DELEGATE;
+
+ if (root_flags & CGRP_ROOT_MEMORY_LOCAL_EVENTS)
+ cgrp_dfl_root.flags |= CGRP_ROOT_MEMORY_LOCAL_EVENTS;
+ else
+ cgrp_dfl_root.flags &= ~CGRP_ROOT_MEMORY_LOCAL_EVENTS;
}
}
@@ -1820,6 +1830,8 @@ static int cgroup_show_options(struct seq_file *seq, struct kernfs_root *kf_root
{
if (cgrp_dfl_root.flags & CGRP_ROOT_NS_DELEGATE)
seq_puts(seq, ",nsdelegate");
+ if (cgrp_dfl_root.flags & CGRP_ROOT_MEMORY_LOCAL_EVENTS)
+ seq_puts(seq, ",memory_localevents");
return 0;
}
@@ -6207,7 +6219,7 @@ static struct kobj_attribute cgroup_delegate_attr = __ATTR_RO(delegate);
static ssize_t features_show(struct kobject *kobj, struct kobj_attribute *attr,
char *buf)
{
- return snprintf(buf, PAGE_SIZE, "nsdelegate\n");
+ return snprintf(buf, PAGE_SIZE, "nsdelegate\nmemory_localevents\n");
}
static struct kobj_attribute cgroup_features_attr = __ATTR_RO(features);
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
index 0f1228945be51f43eb1913ac6f67d6f4aae467a8..12059b78b631453e70ff0711bfc2c63f51eb114d 100644
--- a/kernel/dma/swiotlb.c
+++ b/kernel/dma/swiotlb.c
@@ -199,6 +199,7 @@ void __init swiotlb_update_mem_attributes(void)
int __init swiotlb_init_with_tbl(char *tlb, unsigned long nslabs, int verbose)
{
unsigned long i, bytes;
+ size_t alloc_size;
bytes = nslabs << IO_TLB_SHIFT;
@@ -211,12 +212,18 @@ int __init swiotlb_init_with_tbl(char *tlb, unsigned long nslabs, int verbose)
* to find contiguous free memory regions of size up to IO_TLB_SEGSIZE
* between io_tlb_start and io_tlb_end.
*/
- io_tlb_list = memblock_alloc(
- PAGE_ALIGN(io_tlb_nslabs * sizeof(int)),
- PAGE_SIZE);
- io_tlb_orig_addr = memblock_alloc(
- PAGE_ALIGN(io_tlb_nslabs * sizeof(phys_addr_t)),
- PAGE_SIZE);
+ alloc_size = PAGE_ALIGN(io_tlb_nslabs * sizeof(int));
+ io_tlb_list = memblock_alloc(alloc_size, PAGE_SIZE);
+ if (!io_tlb_list)
+ panic("%s: Failed to allocate %zu bytes align=0x%lx\n",
+ __func__, alloc_size, PAGE_SIZE);
+
+ alloc_size = PAGE_ALIGN(io_tlb_nslabs * sizeof(phys_addr_t));
+ io_tlb_orig_addr = memblock_alloc(alloc_size, PAGE_SIZE);
+ if (!io_tlb_orig_addr)
+ panic("%s: Failed to allocate %zu bytes align=0x%lx\n",
+ __func__, alloc_size, PAGE_SIZE);
+
for (i = 0; i < io_tlb_nslabs; i++) {
io_tlb_list[i] = IO_TLB_SEGSIZE - OFFSET(i, IO_TLB_SEGSIZE);
io_tlb_orig_addr[i] = INVALID_PHYS_ADDR;
@@ -249,7 +256,7 @@ swiotlb_init(int verbose)
bytes = io_tlb_nslabs << IO_TLB_SHIFT;
/* Get IO TLB memory from the low pages */
- vstart = memblock_alloc_low_nopanic(PAGE_ALIGN(bytes), PAGE_SIZE);
+ vstart = memblock_alloc_low(PAGE_ALIGN(bytes), PAGE_SIZE);
if (vstart && !swiotlb_init_with_tbl(vstart, io_tlb_nslabs, verbose))
return;
diff --git a/kernel/fork.c b/kernel/fork.c
index 97d1a29babe29f5ac30bc4024b70964141d9d35b..3c516c6f7ce4a40bc4807e1815b931743ed24584 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -77,7 +77,6 @@
#include <linux/blkdev.h>
#include <linux/fs_struct.h>
#include <linux/magic.h>
-#include <linux/sched/mm.h>
#include <linux/perf_event.h>
#include <linux/posix-timers.h>
#include <linux/user-return-notifier.h>
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 4802b039b89f54f60d458405a7db128ff1c09648..f08a1e4ee1d4559ea7dd17f094a5f0e029dcf7fc 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -965,6 +965,9 @@ void __init __register_nosave_region(unsigned long start_pfn,
/* This allocation cannot fail */
region = memblock_alloc(sizeof(struct nosave_region),
SMP_CACHE_BYTES);
+ if (!region)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ sizeof(struct nosave_region));
}
region->start_pfn = start_pfn;
region->end_pfn = end_pfn;
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 30c7422fc092392561758d2d30706b2165327edc..dc30f7a5ecddedfcdf40c37fdcca4d1e7ceceac4 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -1145,14 +1145,7 @@ void __init setup_log_buf(int early)
if (!new_log_buf_len)
return;
- if (early) {
- new_log_buf =
- memblock_alloc(new_log_buf_len, LOG_ALIGN);
- } else {
- new_log_buf = memblock_alloc_nopanic(new_log_buf_len,
- LOG_ALIGN);
- }
-
+ new_log_buf = memblock_alloc(new_log_buf_len, LOG_ALIGN);
if (unlikely(!new_log_buf)) {
pr_err("log_buf_len: %lu bytes not available\n",
new_log_buf_len);
diff --git a/lib/Makefile b/lib/Makefile
index 647517940b298ccb72e732499b226ba0d044fe63..4e066120a0d6be50ed8161b87d6297095d12cbf9 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -35,10 +35,11 @@ obj-y += lockref.o
obj-y += bcd.o div64.o sort.o parser.o debug_locks.o random32.o \
bust_spinlocks.o kasprintf.o bitmap.o scatterlist.o \
- gcd.o lcm.o list_sort.o uuid.o flex_array.o iov_iter.o clz_ctz.o \
+ gcd.o lcm.o list_sort.o uuid.o iov_iter.o clz_ctz.o \
bsearch.o find_bit.o llist.o memweight.o kfifo.o \
percpu-refcount.o rhashtable.o reciprocal_div.o \
- once.o refcount.o usercopy.o errseq.o bucket_locks.o
+ once.o refcount.o usercopy.o errseq.o bucket_locks.o \
+ generic-radix-tree.o
obj-$(CONFIG_STRING_SELFTEST) += test_string.o
obj-y += string_helpers.o
obj-$(CONFIG_TEST_STRING_HELPERS) += test-string_helpers.o
diff --git a/lib/cpumask.c b/lib/cpumask.c
index 087a3e9a0202bd4ee0c6c03afb6137d284d4a671..0cb672eb107cef6eeb42c5e76ad3fcd5d22de23a 100644
--- a/lib/cpumask.c
+++ b/lib/cpumask.c
@@ -165,6 +165,9 @@ EXPORT_SYMBOL(zalloc_cpumask_var);
void __init alloc_bootmem_cpumask_var(cpumask_var_t *mask)
{
*mask = memblock_alloc(cpumask_size(), SMP_CACHE_BYTES);
+ if (!*mask)
+ panic("%s: Failed to allocate %u bytes\n", __func__,
+ cpumask_size());
}
/**
diff --git a/lib/flex_array.c b/lib/flex_array.c
deleted file mode 100644
index 2eed22fa507c7cb0756d7ef643f8a3454eb455ec..0000000000000000000000000000000000000000
--- a/lib/flex_array.c
+++ /dev/null
@@ -1,398 +0,0 @@
-/*
- * Flexible array managed in PAGE_SIZE parts
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright IBM Corporation, 2009
- *
- * Author: Dave Hansen <dave@linux.vnet.ibm.com>
- */
-
-#include <linux/flex_array.h>
-#include <linux/slab.h>
-#include <linux/stddef.h>
-#include <linux/export.h>
-#include <linux/reciprocal_div.h>
-
-struct flex_array_part {
- char elements[FLEX_ARRAY_PART_SIZE];
-};
-
-/*
- * If a user requests an allocation which is small
- * enough, we may simply use the space in the
- * flex_array->parts[] array to store the user
- * data.
- */
-static inline int elements_fit_in_base(struct flex_array *fa)
-{
- int data_size = fa->element_size * fa->total_nr_elements;
- if (data_size <= FLEX_ARRAY_BASE_BYTES_LEFT)
- return 1;
- return 0;
-}
-
-/**
- * flex_array_alloc - allocate a new flexible array
- * @element_size: the size of individual elements in the array
- * @total: total number of elements that this should hold
- * @flags: page allocation flags to use for base array
- *
- * Note: all locking must be provided by the caller.
- *
- * @total is used to size internal structures. If the user ever
- * accesses any array indexes >=@total, it will produce errors.
- *
- * The maximum number of elements is defined as: the number of
- * elements that can be stored in a page times the number of
- * page pointers that we can fit in the base structure or (using
- * integer math):
- *
- * (PAGE_SIZE/element_size) * (PAGE_SIZE-8)/sizeof(void *)
- *
- * Here's a table showing example capacities. Note that the maximum
- * index that the get/put() functions is just nr_objects-1. This
- * basically means that you get 4MB of storage on 32-bit and 2MB on
- * 64-bit.
- *
- *
- * Element size | Objects | Objects |
- * PAGE_SIZE=4k | 32-bit | 64-bit |
- * ---------------------------------|
- * 1 bytes | 4177920 | 2088960 |
- * 2 bytes | 2088960 | 1044480 |
- * 3 bytes | 1392300 | 696150 |
- * 4 bytes | 1044480 | 522240 |
- * 32 bytes | 130560 | 65408 |
- * 33 bytes | 126480 | 63240 |
- * 2048 bytes | 2040 | 1020 |
- * 2049 bytes | 1020 | 510 |
- * void * | 1044480 | 261120 |
- *
- * Since 64-bit pointers are twice the size, we lose half the
- * capacity in the base structure. Also note that no effort is made
- * to efficiently pack objects across page boundaries.
- */
-struct flex_array *flex_array_alloc(int element_size, unsigned int total,
- gfp_t flags)
-{
- struct flex_array *ret;
- int elems_per_part = 0;
- int max_size = 0;
- struct reciprocal_value reciprocal_elems = { 0 };
-
- if (element_size) {
- elems_per_part = FLEX_ARRAY_ELEMENTS_PER_PART(element_size);
- reciprocal_elems = reciprocal_value(elems_per_part);
- max_size = FLEX_ARRAY_NR_BASE_PTRS * elems_per_part;
- }
-
- /* max_size will end up 0 if element_size > PAGE_SIZE */
- if (total > max_size)
- return NULL;
- ret = kzalloc(sizeof(struct flex_array), flags);
- if (!ret)
- return NULL;
- ret->element_size = element_size;
- ret->total_nr_elements = total;
- ret->elems_per_part = elems_per_part;
- ret->reciprocal_elems = reciprocal_elems;
- if (elements_fit_in_base(ret) && !(flags & __GFP_ZERO))
- memset(&ret->parts[0], FLEX_ARRAY_FREE,
- FLEX_ARRAY_BASE_BYTES_LEFT);
- return ret;
-}
-EXPORT_SYMBOL(flex_array_alloc);
-
-static int fa_element_to_part_nr(struct flex_array *fa,
- unsigned int element_nr)
-{
- /*
- * if element_size == 0 we don't get here, so we never touch
- * the zeroed fa->reciprocal_elems, which would yield invalid
- * results
- */
- return reciprocal_divide(element_nr, fa->reciprocal_elems);
-}
-
-/**
- * flex_array_free_parts - just free the second-level pages
- * @fa: the flex array from which to free parts
- *
- * This is to be used in cases where the base 'struct flex_array'
- * has been statically allocated and should not be free.
- */
-void flex_array_free_parts(struct flex_array *fa)
-{
- int part_nr;
-
- if (elements_fit_in_base(fa))
- return;
- for (part_nr = 0; part_nr < FLEX_ARRAY_NR_BASE_PTRS; part_nr++)
- kfree(fa->parts[part_nr]);
-}
-EXPORT_SYMBOL(flex_array_free_parts);
-
-void flex_array_free(struct flex_array *fa)
-{
- flex_array_free_parts(fa);
- kfree(fa);
-}
-EXPORT_SYMBOL(flex_array_free);
-
-static unsigned int index_inside_part(struct flex_array *fa,
- unsigned int element_nr,
- unsigned int part_nr)
-{
- unsigned int part_offset;
-
- part_offset = element_nr - part_nr * fa->elems_per_part;
- return part_offset * fa->element_size;
-}
-
-static struct flex_array_part *
-__fa_get_part(struct flex_array *fa, int part_nr, gfp_t flags)
-{
- struct flex_array_part *part = fa->parts[part_nr];
- if (!part) {
- part = kmalloc(sizeof(struct flex_array_part), flags);
- if (!part)
- return NULL;
- if (!(flags & __GFP_ZERO))
- memset(part, FLEX_ARRAY_FREE,
- sizeof(struct flex_array_part));
- fa->parts[part_nr] = part;
- }
- return part;
-}
-
-/**
- * flex_array_put - copy data into the array at @element_nr
- * @fa: the flex array to copy data into
- * @element_nr: index of the position in which to insert
- * the new element.
- * @src: address of data to copy into the array
- * @flags: page allocation flags to use for array expansion
- *
- *
- * Note that this *copies* the contents of @src into
- * the array. If you are trying to store an array of
- * pointers, make sure to pass in &ptr instead of ptr.
- * You may instead wish to use the flex_array_put_ptr()
- * helper function.
- *
- * Locking must be provided by the caller.
- */
-int flex_array_put(struct flex_array *fa, unsigned int element_nr, void *src,
- gfp_t flags)
-{
- int part_nr = 0;
- struct flex_array_part *part;
- void *dst;
-
- if (element_nr >= fa->total_nr_elements)
- return -ENOSPC;
- if (!fa->element_size)
- return 0;
- if (elements_fit_in_base(fa))
- part = (struct flex_array_part *)&fa->parts[0];
- else {
- part_nr = fa_element_to_part_nr(fa, element_nr);
- part = __fa_get_part(fa, part_nr, flags);
- if (!part)
- return -ENOMEM;
- }
- dst = &part->elements[index_inside_part(fa, element_nr, part_nr)];
- memcpy(dst, src, fa->element_size);
- return 0;
-}
-EXPORT_SYMBOL(flex_array_put);
-
-/**
- * flex_array_clear - clear element in array at @element_nr
- * @fa: the flex array of the element.
- * @element_nr: index of the position to clear.
- *
- * Locking must be provided by the caller.
- */
-int flex_array_clear(struct flex_array *fa, unsigned int element_nr)
-{
- int part_nr = 0;
- struct flex_array_part *part;
- void *dst;
-
- if (element_nr >= fa->total_nr_elements)
- return -ENOSPC;
- if (!fa->element_size)
- return 0;
- if (elements_fit_in_base(fa))
- part = (struct flex_array_part *)&fa->parts[0];
- else {
- part_nr = fa_element_to_part_nr(fa, element_nr);
- part = fa->parts[part_nr];
- if (!part)
- return -EINVAL;
- }
- dst = &part->elements[index_inside_part(fa, element_nr, part_nr)];
- memset(dst, FLEX_ARRAY_FREE, fa->element_size);
- return 0;
-}
-EXPORT_SYMBOL(flex_array_clear);
-
-/**
- * flex_array_prealloc - guarantee that array space exists
- * @fa: the flex array for which to preallocate parts
- * @start: index of first array element for which space is allocated
- * @nr_elements: number of elements for which space is allocated
- * @flags: page allocation flags
- *
- * This will guarantee that no future calls to flex_array_put()
- * will allocate memory. It can be used if you are expecting to
- * be holding a lock or in some atomic context while writing
- * data into the array.
- *
- * Locking must be provided by the caller.
- */
-int flex_array_prealloc(struct flex_array *fa, unsigned int start,
- unsigned int nr_elements, gfp_t flags)
-{
- int start_part;
- int end_part;
- int part_nr;
- unsigned int end;
- struct flex_array_part *part;
-
- if (!start && !nr_elements)
- return 0;
- if (start >= fa->total_nr_elements)
- return -ENOSPC;
- if (!nr_elements)
- return 0;
-
- end = start + nr_elements - 1;
-
- if (end >= fa->total_nr_elements)
- return -ENOSPC;
- if (!fa->element_size)
- return 0;
- if (elements_fit_in_base(fa))
- return 0;
- start_part = fa_element_to_part_nr(fa, start);
- end_part = fa_element_to_part_nr(fa, end);
- for (part_nr = start_part; part_nr <= end_part; part_nr++) {
- part = __fa_get_part(fa, part_nr, flags);
- if (!part)
- return -ENOMEM;
- }
- return 0;
-}
-EXPORT_SYMBOL(flex_array_prealloc);
-
-/**
- * flex_array_get - pull data back out of the array
- * @fa: the flex array from which to extract data
- * @element_nr: index of the element to fetch from the array
- *
- * Returns a pointer to the data at index @element_nr. Note
- * that this is a copy of the data that was passed in. If you
- * are using this to store pointers, you'll get back &ptr. You
- * may instead wish to use the flex_array_get_ptr helper.
- *
- * Locking must be provided by the caller.
- */
-void *flex_array_get(struct flex_array *fa, unsigned int element_nr)
-{
- int part_nr = 0;
- struct flex_array_part *part;
-
- if (!fa->element_size)
- return NULL;
- if (element_nr >= fa->total_nr_elements)
- return NULL;
- if (elements_fit_in_base(fa))
- part = (struct flex_array_part *)&fa->parts[0];
- else {
- part_nr = fa_element_to_part_nr(fa, element_nr);
- part = fa->parts[part_nr];
- if (!part)
- return NULL;
- }
- return &part->elements[index_inside_part(fa, element_nr, part_nr)];
-}
-EXPORT_SYMBOL(flex_array_get);
-
-/**
- * flex_array_get_ptr - pull a ptr back out of the array
- * @fa: the flex array from which to extract data
- * @element_nr: index of the element to fetch from the array
- *
- * Returns the pointer placed in the flex array at element_nr using
- * flex_array_put_ptr(). This function should not be called if the
- * element in question was not set using the _put_ptr() helper.
- */
-void *flex_array_get_ptr(struct flex_array *fa, unsigned int element_nr)
-{
- void **tmp;
-
- tmp = flex_array_get(fa, element_nr);
- if (!tmp)
- return NULL;
-
- return *tmp;
-}
-EXPORT_SYMBOL(flex_array_get_ptr);
-
-static int part_is_free(struct flex_array_part *part)
-{
- int i;
-
- for (i = 0; i < sizeof(struct flex_array_part); i++)
- if (part->elements[i] != FLEX_ARRAY_FREE)
- return 0;
- return 1;
-}
-
-/**
- * flex_array_shrink - free unused second-level pages
- * @fa: the flex array to shrink
- *
- * Frees all second-level pages that consist solely of unused
- * elements. Returns the number of pages freed.
- *
- * Locking must be provided by the caller.
- */
-int flex_array_shrink(struct flex_array *fa)
-{
- struct flex_array_part *part;
- int part_nr;
- int ret = 0;
-
- if (!fa->total_nr_elements || !fa->element_size)
- return 0;
- if (elements_fit_in_base(fa))
- return ret;
- for (part_nr = 0; part_nr < FLEX_ARRAY_NR_BASE_PTRS; part_nr++) {
- part = fa->parts[part_nr];
- if (!part)
- continue;
- if (part_is_free(part)) {
- fa->parts[part_nr] = NULL;
- kfree(part);
- ret++;
- }
- }
- return ret;
-}
-EXPORT_SYMBOL(flex_array_shrink);
diff --git a/lib/generic-radix-tree.c b/lib/generic-radix-tree.c
new file mode 100644
index 0000000000000000000000000000000000000000..a7bafc413730c5e4551ef044b2c8c47b59df5628
--- /dev/null
+++ b/lib/generic-radix-tree.c
@@ -0,0 +1,217 @@
+
+#include <linux/export.h>
+#include <linux/generic-radix-tree.h>
+#include <linux/gfp.h>
+
+#define GENRADIX_ARY (PAGE_SIZE / sizeof(struct genradix_node *))
+#define GENRADIX_ARY_SHIFT ilog2(GENRADIX_ARY)
+
+struct genradix_node {
+ union {
+ /* Interior node: */
+ struct genradix_node *children[GENRADIX_ARY];
+
+ /* Leaf: */
+ u8 data[PAGE_SIZE];
+ };
+};
+
+static inline int genradix_depth_shift(unsigned depth)
+{
+ return PAGE_SHIFT + GENRADIX_ARY_SHIFT * depth;
+}
+
+/*
+ * Returns size (of data, in bytes) that a tree of a given depth holds:
+ */
+static inline size_t genradix_depth_size(unsigned depth)
+{
+ return 1UL << genradix_depth_shift(depth);
+}
+
+/* depth that's needed for a genradix that can address up to ULONG_MAX: */
+#define GENRADIX_MAX_DEPTH \
+ DIV_ROUND_UP(BITS_PER_LONG - PAGE_SHIFT, GENRADIX_ARY_SHIFT)
+
+#define GENRADIX_DEPTH_MASK \
+ ((unsigned long) (roundup_pow_of_two(GENRADIX_MAX_DEPTH + 1) - 1))
+
+unsigned genradix_root_to_depth(struct genradix_root *r)
+{
+ return (unsigned long) r & GENRADIX_DEPTH_MASK;
+}
+
+struct genradix_node *genradix_root_to_node(struct genradix_root *r)
+{
+ return (void *) ((unsigned long) r & ~GENRADIX_DEPTH_MASK);
+}
+
+/*
+ * Returns pointer to the specified byte @offset within @radix, or NULL if not
+ * allocated
+ */
+void *__genradix_ptr(struct __genradix *radix, size_t offset)
+{
+ struct genradix_root *r = READ_ONCE(radix->root);
+ struct genradix_node *n = genradix_root_to_node(r);
+ unsigned level = genradix_root_to_depth(r);
+
+ if (ilog2(offset) >= genradix_depth_shift(level))
+ return NULL;
+
+ while (1) {
+ if (!n)
+ return NULL;
+ if (!level)
+ break;
+
+ level--;
+
+ n = n->children[offset >> genradix_depth_shift(level)];
+ offset &= genradix_depth_size(level) - 1;
+ }
+
+ return &n->data[offset];
+}
+EXPORT_SYMBOL(__genradix_ptr);
+
+/*
+ * Returns pointer to the specified byte @offset within @radix, allocating it if
+ * necessary - newly allocated slots are always zeroed out:
+ */
+void *__genradix_ptr_alloc(struct __genradix *radix, size_t offset,
+ gfp_t gfp_mask)
+{
+ struct genradix_root *v = READ_ONCE(radix->root);
+ struct genradix_node *n, *new_node = NULL;
+ unsigned level;
+
+ /* Increase tree depth if necessary: */
+ while (1) {
+ struct genradix_root *r = v, *new_root;
+
+ n = genradix_root_to_node(r);
+ level = genradix_root_to_depth(r);
+
+ if (n && ilog2(offset) < genradix_depth_shift(level))
+ break;
+
+ if (!new_node) {
+ new_node = (void *)
+ __get_free_page(gfp_mask|__GFP_ZERO);
+ if (!new_node)
+ return NULL;
+ }
+
+ new_node->children[0] = n;
+ new_root = ((struct genradix_root *)
+ ((unsigned long) new_node | (n ? level + 1 : 0)));
+
+ if ((v = cmpxchg_release(&radix->root, r, new_root)) == r) {
+ v = new_root;
+ new_node = NULL;
+ }
+ }
+
+ while (level--) {
+ struct genradix_node **p =
+ &n->children[offset >> genradix_depth_shift(level)];
+ offset &= genradix_depth_size(level) - 1;
+
+ n = READ_ONCE(*p);
+ if (!n) {
+ if (!new_node) {
+ new_node = (void *)
+ __get_free_page(gfp_mask|__GFP_ZERO);
+ if (!new_node)
+ return NULL;
+ }
+
+ if (!(n = cmpxchg_release(p, NULL, new_node)))
+ swap(n, new_node);
+ }
+ }
+
+ if (new_node)
+ free_page((unsigned long) new_node);
+
+ return &n->data[offset];
+}
+EXPORT_SYMBOL(__genradix_ptr_alloc);
+
+void *__genradix_iter_peek(struct genradix_iter *iter,
+ struct __genradix *radix,
+ size_t objs_per_page)
+{
+ struct genradix_root *r;
+ struct genradix_node *n;
+ unsigned level, i;
+restart:
+ r = READ_ONCE(radix->root);
+ if (!r)
+ return NULL;
+
+ n = genradix_root_to_node(r);
+ level = genradix_root_to_depth(r);
+
+ if (ilog2(iter->offset) >= genradix_depth_shift(level))
+ return NULL;
+
+ while (level) {
+ level--;
+
+ i = (iter->offset >> genradix_depth_shift(level)) &
+ (GENRADIX_ARY - 1);
+
+ while (!n->children[i]) {
+ i++;
+ iter->offset = round_down(iter->offset +
+ genradix_depth_size(level),
+ genradix_depth_size(level));
+ iter->pos = (iter->offset >> PAGE_SHIFT) *
+ objs_per_page;
+ if (i == GENRADIX_ARY)
+ goto restart;
+ }
+
+ n = n->children[i];
+ }
+
+ return &n->data[iter->offset & (PAGE_SIZE - 1)];
+}
+EXPORT_SYMBOL(__genradix_iter_peek);
+
+static void genradix_free_recurse(struct genradix_node *n, unsigned level)
+{
+ if (level) {
+ unsigned i;
+
+ for (i = 0; i < GENRADIX_ARY; i++)
+ if (n->children[i])
+ genradix_free_recurse(n->children[i], level - 1);
+ }
+
+ free_page((unsigned long) n);
+}
+
+int __genradix_prealloc(struct __genradix *radix, size_t size,
+ gfp_t gfp_mask)
+{
+ size_t offset;
+
+ for (offset = 0; offset < size; offset += PAGE_SIZE)
+ if (!__genradix_ptr_alloc(radix, offset, gfp_mask))
+ return -ENOMEM;
+
+ return 0;
+}
+EXPORT_SYMBOL(__genradix_prealloc);
+
+void __genradix_free(struct __genradix *radix)
+{
+ struct genradix_root *r = xchg(&radix->root, NULL);
+
+ genradix_free_recurse(genradix_root_to_node(r),
+ genradix_root_to_depth(r));
+}
+EXPORT_SYMBOL(__genradix_free);
diff --git a/mm/cma.c b/mm/cma.c
index f4f3a8a57d8623aa4bdbb71ddb232a33a6493378..bb2d333ffcb3128db361fbe6053818e5db677170 100644
--- a/mm/cma.c
+++ b/mm/cma.c
@@ -327,16 +327,14 @@ int __init cma_declare_contiguous(phys_addr_t base,
* memory in case of failure.
*/
if (base < highmem_start && limit > highmem_start) {
- addr = memblock_alloc_range(size, alignment,
- highmem_start, limit,
- MEMBLOCK_NONE);
+ addr = memblock_phys_alloc_range(size, alignment,
+ highmem_start, limit);
limit = highmem_start;
}
if (!addr) {
- addr = memblock_alloc_range(size, alignment, base,
- limit,
- MEMBLOCK_NONE);
+ addr = memblock_phys_alloc_range(size, alignment, base,
+ limit);
if (!addr) {
ret = -ENOMEM;
goto err;
diff --git a/mm/hmm.c b/mm/hmm.c
index 89ebeefd034999cf557b81ab2739c651c6c68530..3c9781037918036a1fc1cdf64ab55041611d78ad 100644
--- a/mm/hmm.c
+++ b/mm/hmm.c
@@ -1371,7 +1371,7 @@ static void hmm_devmem_ref_kill(struct percpu_ref *ref)
percpu_ref_kill(ref);
}
-static int hmm_devmem_fault(struct vm_area_struct *vma,
+static vm_fault_t hmm_devmem_fault(struct vm_area_struct *vma,
unsigned long addr,
const struct page *page,
unsigned int flags,
diff --git a/mm/kasan/init.c b/mm/kasan/init.c
index 45a1b5e38e1e2415ad39113a6504ead9fa949dbc..af907d8da9f592a4c1b5e3bf73d6759a4f312790 100644
--- a/mm/kasan/init.c
+++ b/mm/kasan/init.c
@@ -83,8 +83,14 @@ static inline bool kasan_early_shadow_page_entry(pte_t pte)
static __init void *early_alloc(size_t size, int node)
{
- return memblock_alloc_try_nid(size, size, __pa(MAX_DMA_ADDRESS),
- MEMBLOCK_ALLOC_ACCESSIBLE, node);
+ void *ptr = memblock_alloc_try_nid(size, size, __pa(MAX_DMA_ADDRESS),
+ MEMBLOCK_ALLOC_ACCESSIBLE, node);
+
+ if (!ptr)
+ panic("%s: Failed to allocate %zu bytes align=%zx nid=%d from=%llx\n",
+ __func__, size, size, node, (u64)__pa(MAX_DMA_ADDRESS));
+
+ return ptr;
}
static void __ref zero_pte_populate(pmd_t *pmd, unsigned long addr,
diff --git a/mm/memblock.c b/mm/memblock.c
index 224816f809729f65d5f5e2df98fd881e5d1302df..28fa8926d9f8e9d4b790212e71c637c6b9f43fcf 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -76,8 +76,19 @@
* :c:func:`memblock_set_node`. The :c:func:`memblock_add_node`
* performs such an assignment directly.
*
- * Once memblock is setup the memory can be allocated using either
- * memblock or bootmem APIs.
+ * Once memblock is setup the memory can be allocated using one of the
+ * API variants:
+ *
+ * * :c:func:`memblock_phys_alloc*` - these functions return the
+ * **physical** address of the allocated memory
+ * * :c:func:`memblock_alloc*` - these functions return the **virtual**
+ * address of the allocated memory.
+ *
+ * Note, that both API variants use implict assumptions about allowed
+ * memory ranges and the fallback methods. Consult the documentation
+ * of :c:func:`memblock_alloc_internal` and
+ * :c:func:`memblock_alloc_range_nid` functions for more elaboarte
+ * description.
*
* As the system boot progresses, the architecture specific
* :c:func:`mem_init` function frees all the memory to the buddy page
@@ -132,7 +143,7 @@ static int memblock_can_resize __initdata_memblock;
static int memblock_memory_in_slab __initdata_memblock = 0;
static int memblock_reserved_in_slab __initdata_memblock = 0;
-enum memblock_flags __init_memblock choose_memblock_flags(void)
+static enum memblock_flags __init_memblock choose_memblock_flags(void)
{
return system_has_some_mirror ? MEMBLOCK_MIRROR : MEMBLOCK_NONE;
}
@@ -261,7 +272,7 @@ __memblock_find_range_top_down(phys_addr_t start, phys_addr_t end,
* Return:
* Found address on success, 0 on failure.
*/
-phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t size,
+static phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t size,
phys_addr_t align, phys_addr_t start,
phys_addr_t end, int nid,
enum memblock_flags flags)
@@ -435,17 +446,7 @@ static int __init_memblock memblock_double_array(struct memblock_type *type,
else
in_slab = &memblock_reserved_in_slab;
- /* Try to find some space for it.
- *
- * WARNING: We assume that either slab_is_available() and we use it or
- * we use MEMBLOCK for allocations. That means that this is unsafe to
- * use when bootmem is currently active (unless bootmem itself is
- * implemented on top of MEMBLOCK which isn't the case yet)
- *
- * This should however not be an issue for now, as we currently only
- * call into MEMBLOCK while it's still active, or much later when slab
- * is active for memory hotplug operations
- */
+ /* Try to find some space for it */
if (use_slab) {
new_array = kmalloc(new_size, GFP_KERNEL);
addr = new_array ? __pa(new_array) : 0;
@@ -858,11 +859,14 @@ static int __init_memblock memblock_setclr_flag(phys_addr_t base,
if (ret)
return ret;
- for (i = start_rgn; i < end_rgn; i++)
+ for (i = start_rgn; i < end_rgn; i++) {
+ struct memblock_region *r = &type->regions[i];
+
if (set)
- memblock_set_region_flags(&type->regions[i], flag);
+ r->flags |= flag;
else
- memblock_clear_region_flags(&type->regions[i], flag);
+ r->flags &= ~flag;
+ }
memblock_merge_regions(type);
return 0;
@@ -962,8 +966,31 @@ void __init_memblock __next_reserved_mem_region(u64 *idx,
*idx = ULLONG_MAX;
}
+static bool should_skip_region(struct memblock_region *m, int nid, int flags)
+{
+ int m_nid = memblock_get_region_node(m);
+
+ /* only memory regions are associated with nodes, check it */
+ if (nid != NUMA_NO_NODE && nid != m_nid)
+ return true;
+
+ /* skip hotpluggable memory regions if needed */
+ if (movable_node_is_enabled() && memblock_is_hotpluggable(m))
+ return true;
+
+ /* if we want mirror memory skip non-mirror memory regions */
+ if ((flags & MEMBLOCK_MIRROR) && !memblock_is_mirror(m))
+ return true;
+
+ /* skip nomap memory unless we were asked for it explicitly */
+ if (!(flags & MEMBLOCK_NOMAP) && memblock_is_nomap(m))
+ return true;
+
+ return false;
+}
+
/**
- * __next__mem_range - next function for for_each_free_mem_range() etc.
+ * __next_mem_range - next function for for_each_free_mem_range() etc.
* @idx: pointer to u64 loop variable
* @nid: node selector, %NUMA_NO_NODE for all nodes
* @flags: pick from blocks based on memory attributes
@@ -1009,20 +1036,7 @@ void __init_memblock __next_mem_range(u64 *idx, int nid,
phys_addr_t m_end = m->base + m->size;
int m_nid = memblock_get_region_node(m);
- /* only memory regions are associated with nodes, check it */
- if (nid != NUMA_NO_NODE && nid != m_nid)
- continue;
-
- /* skip hotpluggable memory regions if needed */
- if (movable_node_is_enabled() && memblock_is_hotpluggable(m))
- continue;
-
- /* if we want mirror memory skip non-mirror memory regions */
- if ((flags & MEMBLOCK_MIRROR) && !memblock_is_mirror(m))
- continue;
-
- /* skip nomap memory unless we were asked for it explicitly */
- if (!(flags & MEMBLOCK_NOMAP) && memblock_is_nomap(m))
+ if (should_skip_region(m, nid, flags))
continue;
if (!type_b) {
@@ -1126,20 +1140,7 @@ void __init_memblock __next_mem_range_rev(u64 *idx, int nid,
phys_addr_t m_end = m->base + m->size;
int m_nid = memblock_get_region_node(m);
- /* only memory regions are associated with nodes, check it */
- if (nid != NUMA_NO_NODE && nid != m_nid)
- continue;
-
- /* skip hotpluggable memory regions if needed */
- if (movable_node_is_enabled() && memblock_is_hotpluggable(m))
- continue;
-
- /* if we want mirror memory skip non-mirror memory regions */
- if ((flags & MEMBLOCK_MIRROR) && !memblock_is_mirror(m))
- continue;
-
- /* skip nomap memory unless we were asked for it explicitly */
- if (!(flags & MEMBLOCK_NOMAP) && memblock_is_nomap(m))
+ if (should_skip_region(m, nid, flags))
continue;
if (!type_b) {
@@ -1319,94 +1320,123 @@ __next_mem_pfn_range_in_zone(u64 *idx, struct zone *zone,
#endif /* CONFIG_DEFERRED_STRUCT_PAGE_INIT */
+/**
+ * memblock_alloc_range_nid - allocate boot memory block
+ * @size: size of memory block to be allocated in bytes
+ * @align: alignment of the region and block's size
+ * @start: the lower bound of the memory region to allocate (phys address)
+ * @end: the upper bound of the memory region to allocate (phys address)
+ * @nid: nid of the free area to find, %NUMA_NO_NODE for any node
+ *
+ * The allocation is performed from memory region limited by
+ * memblock.current_limit if @max_addr == %MEMBLOCK_ALLOC_ACCESSIBLE.
+ *
+ * If the specified node can not hold the requested memory the
+ * allocation falls back to any node in the system
+ *
+ * For systems with memory mirroring, the allocation is attempted first
+ * from the regions with mirroring enabled and then retried from any
+ * memory region.
+ *
+ * In addition, function sets the min_count to 0 using kmemleak_alloc_phys for
+ * allocated boot memory block, so that it is never reported as leaks.
+ *
+ * Return:
+ * Physical address of allocated memory block on success, %0 on failure.
+ */
static phys_addr_t __init memblock_alloc_range_nid(phys_addr_t size,
phys_addr_t align, phys_addr_t start,
- phys_addr_t end, int nid,
- enum memblock_flags flags)
+ phys_addr_t end, int nid)
{
+ enum memblock_flags flags = choose_memblock_flags();
phys_addr_t found;
+ if (WARN_ONCE(nid == MAX_NUMNODES, "Usage of MAX_NUMNODES is deprecated. Use NUMA_NO_NODE instead\n"))
+ nid = NUMA_NO_NODE;
+
if (!align) {
/* Can't use WARNs this early in boot on powerpc */
dump_stack();
align = SMP_CACHE_BYTES;
}
+ if (end > memblock.current_limit)
+ end = memblock.current_limit;
+
+again:
found = memblock_find_in_range_node(size, align, start, end, nid,
flags);
- if (found && !memblock_reserve(found, size)) {
- /*
- * The min_count is set to 0 so that memblock allocations are
- * never reported as leaks.
- */
- kmemleak_alloc_phys(found, size, 0, 0);
- return found;
- }
- return 0;
-}
-
-phys_addr_t __init memblock_alloc_range(phys_addr_t size, phys_addr_t align,
- phys_addr_t start, phys_addr_t end,
- enum memblock_flags flags)
-{
- return memblock_alloc_range_nid(size, align, start, end, NUMA_NO_NODE,
- flags);
-}
-
-phys_addr_t __init memblock_alloc_base_nid(phys_addr_t size,
- phys_addr_t align, phys_addr_t max_addr,
- int nid, enum memblock_flags flags)
-{
- return memblock_alloc_range_nid(size, align, 0, max_addr, nid, flags);
-}
-
-phys_addr_t __init memblock_phys_alloc_nid(phys_addr_t size, phys_addr_t align, int nid)
-{
- enum memblock_flags flags = choose_memblock_flags();
- phys_addr_t ret;
+ if (found && !memblock_reserve(found, size))
+ goto done;
-again:
- ret = memblock_alloc_base_nid(size, align, MEMBLOCK_ALLOC_ACCESSIBLE,
- nid, flags);
+ if (nid != NUMA_NO_NODE) {
+ found = memblock_find_in_range_node(size, align, start,
+ end, NUMA_NO_NODE,
+ flags);
+ if (found && !memblock_reserve(found, size))
+ goto done;
+ }
- if (!ret && (flags & MEMBLOCK_MIRROR)) {
+ if (flags & MEMBLOCK_MIRROR) {
flags &= ~MEMBLOCK_MIRROR;
+ pr_warn("Could not allocate %pap bytes of mirrored memory\n",
+ &size);
goto again;
}
- return ret;
-}
-
-phys_addr_t __init __memblock_alloc_base(phys_addr_t size, phys_addr_t align, phys_addr_t max_addr)
-{
- return memblock_alloc_base_nid(size, align, max_addr, NUMA_NO_NODE,
- MEMBLOCK_NONE);
-}
-phys_addr_t __init memblock_alloc_base(phys_addr_t size, phys_addr_t align, phys_addr_t max_addr)
-{
- phys_addr_t alloc;
-
- alloc = __memblock_alloc_base(size, align, max_addr);
+ return 0;
- if (alloc == 0)
- panic("ERROR: Failed to allocate %pa bytes below %pa.\n",
- &size, &max_addr);
+done:
+ /* Skip kmemleak for kasan_init() due to high volume. */
+ if (end != MEMBLOCK_ALLOC_KASAN)
+ /*
+ * The min_count is set to 0 so that memblock allocated
+ * blocks are never reported as leaks. This is because many
+ * of these blocks are only referred via the physical
+ * address which is not looked up by kmemleak.
+ */
+ kmemleak_alloc_phys(found, size, 0, 0);
- return alloc;
+ return found;
}
-phys_addr_t __init memblock_phys_alloc(phys_addr_t size, phys_addr_t align)
+/**
+ * memblock_phys_alloc_range - allocate a memory block inside specified range
+ * @size: size of memory block to be allocated in bytes
+ * @align: alignment of the region and block's size
+ * @start: the lower bound of the memory region to allocate (physical address)
+ * @end: the upper bound of the memory region to allocate (physical address)
+ *
+ * Allocate @size bytes in the between @start and @end.
+ *
+ * Return: physical address of the allocated memory block on success,
+ * %0 on failure.
+ */
+phys_addr_t __init memblock_phys_alloc_range(phys_addr_t size,
+ phys_addr_t align,
+ phys_addr_t start,
+ phys_addr_t end)
{
- return memblock_alloc_base(size, align, MEMBLOCK_ALLOC_ACCESSIBLE);
+ return memblock_alloc_range_nid(size, align, start, end, NUMA_NO_NODE);
}
+/**
+ * memblock_phys_alloc_try_nid - allocate a memory block from specified MUMA node
+ * @size: size of memory block to be allocated in bytes
+ * @align: alignment of the region and block's size
+ * @nid: nid of the free area to find, %NUMA_NO_NODE for any node
+ *
+ * Allocates memory block from the specified NUMA node. If the node
+ * has no available memory, attempts to allocated from any node in the
+ * system.
+ *
+ * Return: physical address of the allocated memory block on success,
+ * %0 on failure.
+ */
phys_addr_t __init memblock_phys_alloc_try_nid(phys_addr_t size, phys_addr_t align, int nid)
{
- phys_addr_t res = memblock_phys_alloc_nid(size, align, nid);
-
- if (res)
- return res;
- return memblock_alloc_base(size, align, MEMBLOCK_ALLOC_ACCESSIBLE);
+ return memblock_alloc_range_nid(size, align, 0,
+ MEMBLOCK_ALLOC_ACCESSIBLE, nid);
}
/**
@@ -1417,19 +1447,13 @@ phys_addr_t __init memblock_phys_alloc_try_nid(phys_addr_t size, phys_addr_t ali
* @max_addr: the upper bound of the memory region to allocate (phys address)
* @nid: nid of the free area to find, %NUMA_NO_NODE for any node
*
- * The @min_addr limit is dropped if it can not be satisfied and the allocation
- * will fall back to memory below @min_addr. Also, allocation may fall back
- * to any node in the system if the specified node can not
- * hold the requested memory.
+ * Allocates memory block using memblock_alloc_range_nid() and
+ * converts the returned physical address to virtual.
*
- * The allocation is performed from memory region limited by
- * memblock.current_limit if @max_addr == %MEMBLOCK_ALLOC_ACCESSIBLE.
- *
- * The phys address of allocated boot memory block is converted to virtual and
- * allocated memory is reset to 0.
- *
- * In addition, function sets the min_count to 0 using kmemleak_alloc for
- * allocated boot memory block, so that it is never reported as leaks.
+ * The @min_addr limit is dropped if it can not be satisfied and the allocation
+ * will fall back to memory below @min_addr. Other constraints, such
+ * as node and mirrored memory will be handled again in
+ * memblock_alloc_range_nid().
*
* Return:
* Virtual address of allocated memory block on success, NULL on failure.
@@ -1440,11 +1464,6 @@ static void * __init memblock_alloc_internal(
int nid)
{
phys_addr_t alloc;
- void *ptr;
- enum memblock_flags flags = choose_memblock_flags();
-
- if (WARN_ONCE(nid == MAX_NUMNODES, "Usage of MAX_NUMNODES is deprecated. Use NUMA_NO_NODE instead\n"))
- nid = NUMA_NO_NODE;
/*
* Detect any accidental use of these APIs after slab is ready, as at
@@ -1454,54 +1473,16 @@ static void * __init memblock_alloc_internal(
if (WARN_ON_ONCE(slab_is_available()))
return kzalloc_node(size, GFP_NOWAIT, nid);
- if (!align) {
- dump_stack();
- align = SMP_CACHE_BYTES;
- }
+ alloc = memblock_alloc_range_nid(size, align, min_addr, max_addr, nid);
- if (max_addr > memblock.current_limit)
- max_addr = memblock.current_limit;
-again:
- alloc = memblock_find_in_range_node(size, align, min_addr, max_addr,
- nid, flags);
- if (alloc && !memblock_reserve(alloc, size))
- goto done;
+ /* retry allocation without lower limit */
+ if (!alloc && min_addr)
+ alloc = memblock_alloc_range_nid(size, align, 0, max_addr, nid);
- if (nid != NUMA_NO_NODE) {
- alloc = memblock_find_in_range_node(size, align, min_addr,
- max_addr, NUMA_NO_NODE,
- flags);
- if (alloc && !memblock_reserve(alloc, size))
- goto done;
- }
-
- if (min_addr) {
- min_addr = 0;
- goto again;
- }
+ if (!alloc)
+ return NULL;
- if (flags & MEMBLOCK_MIRROR) {
- flags &= ~MEMBLOCK_MIRROR;
- pr_warn("Could not allocate %pap bytes of mirrored memory\n",
- &size);
- goto again;
- }
-
- return NULL;
-done:
- ptr = phys_to_virt(alloc);
-
- /* Skip kmemleak for kasan_init() due to high volume. */
- if (max_addr != MEMBLOCK_ALLOC_KASAN)
- /*
- * The min_count is set to 0 so that bootmem allocated
- * blocks are never reported as leaks. This is because many
- * of these blocks are only referred via the physical
- * address which is not looked up by kmemleak.
- */
- kmemleak_alloc(ptr, size, 0, 0);
-
- return ptr;
+ return phys_to_virt(alloc);
}
/**
@@ -1543,7 +1524,7 @@ void * __init memblock_alloc_try_nid_raw(
}
/**
- * memblock_alloc_try_nid_nopanic - allocate boot memory block
+ * memblock_alloc_try_nid - allocate boot memory block
* @size: size of memory block to be allocated in bytes
* @align: alignment of the region and block's size
* @min_addr: the lower bound of the memory region from where the allocation
@@ -1559,42 +1540,6 @@ void * __init memblock_alloc_try_nid_raw(
* Return:
* Virtual address of allocated memory block on success, NULL on failure.
*/
-void * __init memblock_alloc_try_nid_nopanic(
- phys_addr_t size, phys_addr_t align,
- phys_addr_t min_addr, phys_addr_t max_addr,
- int nid)
-{
- void *ptr;
-
- memblock_dbg("%s: %llu bytes align=0x%llx nid=%d from=%pa max_addr=%pa %pF\n",
- __func__, (u64)size, (u64)align, nid, &min_addr,
- &max_addr, (void *)_RET_IP_);
-
- ptr = memblock_alloc_internal(size, align,
- min_addr, max_addr, nid);
- if (ptr)
- memset(ptr, 0, size);
- return ptr;
-}
-
-/**
- * memblock_alloc_try_nid - allocate boot memory block with panicking
- * @size: size of memory block to be allocated in bytes
- * @align: alignment of the region and block's size
- * @min_addr: the lower bound of the memory region from where the allocation
- * is preferred (phys address)
- * @max_addr: the upper bound of the memory region from where the allocation
- * is preferred (phys address), or %MEMBLOCK_ALLOC_ACCESSIBLE to
- * allocate only from memory limited by memblock.current_limit value
- * @nid: nid of the free area to find, %NUMA_NO_NODE for any node
- *
- * Public panicking version of memblock_alloc_try_nid_nopanic()
- * which provides debug information (including caller info), if enabled,
- * and panics if the request can not be satisfied.
- *
- * Return:
- * Virtual address of allocated memory block on success, NULL on failure.
- */
void * __init memblock_alloc_try_nid(
phys_addr_t size, phys_addr_t align,
phys_addr_t min_addr, phys_addr_t max_addr,
@@ -1607,24 +1552,20 @@ void * __init memblock_alloc_try_nid(
&max_addr, (void *)_RET_IP_);
ptr = memblock_alloc_internal(size, align,
min_addr, max_addr, nid);
- if (ptr) {
+ if (ptr)
memset(ptr, 0, size);
- return ptr;
- }
- panic("%s: Failed to allocate %llu bytes align=0x%llx nid=%d from=%pa max_addr=%pa\n",
- __func__, (u64)size, (u64)align, nid, &min_addr, &max_addr);
- return NULL;
+ return ptr;
}
/**
- * __memblock_free_late - free bootmem block pages directly to buddy allocator
+ * __memblock_free_late - free pages directly to buddy allocator
* @base: phys starting address of the boot memory block
* @size: size of the boot memory block in bytes
*
- * This is only useful when the bootmem allocator has already been torn
+ * This is only useful when the memblock allocator has already been torn
* down, but we are still initializing the system. Pages are released directly
- * to the buddy allocator, no bootmem metadata is updated because it is gone.
+ * to the buddy allocator.
*/
void __init __memblock_free_late(phys_addr_t base, phys_addr_t size)
{
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index b828e5314be380f878fce81dbd9932d0a6201faf..17859721a26310f060a2cb11a2ff01a33d97332f 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -690,7 +690,7 @@ mem_cgroup_largest_soft_limit_node(struct mem_cgroup_tree_per_node *mctz)
static unsigned long memcg_sum_events(struct mem_cgroup *memcg,
int event)
{
- return atomic_long_read(&memcg->events[event]);
+ return atomic_long_read(&memcg->vmevents[event]);
}
static void mem_cgroup_charge_statistics(struct mem_cgroup *memcg,
@@ -722,7 +722,7 @@ static void mem_cgroup_charge_statistics(struct mem_cgroup *memcg,
nr_pages = -nr_pages; /* for event */
}
- __this_cpu_add(memcg->stat_cpu->nr_page_events, nr_pages);
+ __this_cpu_add(memcg->vmstats_percpu->nr_page_events, nr_pages);
}
unsigned long mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg,
@@ -758,8 +758,8 @@ static bool mem_cgroup_event_ratelimit(struct mem_cgroup *memcg,
{
unsigned long val, next;
- val = __this_cpu_read(memcg->stat_cpu->nr_page_events);
- next = __this_cpu_read(memcg->stat_cpu->targets[target]);
+ val = __this_cpu_read(memcg->vmstats_percpu->nr_page_events);
+ next = __this_cpu_read(memcg->vmstats_percpu->targets[target]);
/* from time_after() in jiffies.h */
if ((long)(next - val) < 0) {
switch (target) {
@@ -775,7 +775,7 @@ static bool mem_cgroup_event_ratelimit(struct mem_cgroup *memcg,
default:
break;
}
- __this_cpu_write(memcg->stat_cpu->targets[target], next);
+ __this_cpu_write(memcg->vmstats_percpu->targets[target], next);
return true;
}
return false;
@@ -2117,9 +2117,9 @@ static int memcg_hotplug_cpu_dead(unsigned int cpu)
int nid;
long x;
- x = this_cpu_xchg(memcg->stat_cpu->count[i], 0);
+ x = this_cpu_xchg(memcg->vmstats_percpu->stat[i], 0);
if (x)
- atomic_long_add(x, &memcg->stat[i]);
+ atomic_long_add(x, &memcg->vmstats[i]);
if (i >= NR_VM_NODE_STAT_ITEMS)
continue;
@@ -2137,9 +2137,9 @@ static int memcg_hotplug_cpu_dead(unsigned int cpu)
for (i = 0; i < NR_VM_EVENT_ITEMS; i++) {
long x;
- x = this_cpu_xchg(memcg->stat_cpu->events[i], 0);
+ x = this_cpu_xchg(memcg->vmstats_percpu->events[i], 0);
if (x)
- atomic_long_add(x, &memcg->events[i]);
+ atomic_long_add(x, &memcg->vmevents[i]);
}
}
@@ -2979,30 +2979,34 @@ static int mem_cgroup_hierarchy_write(struct cgroup_subsys_state *css,
return retval;
}
-struct accumulated_stats {
- unsigned long stat[MEMCG_NR_STAT];
- unsigned long events[NR_VM_EVENT_ITEMS];
+struct accumulated_vmstats {
+ unsigned long vmstats[MEMCG_NR_STAT];
+ unsigned long vmevents[NR_VM_EVENT_ITEMS];
unsigned long lru_pages[NR_LRU_LISTS];
- const unsigned int *stats_array;
- const unsigned int *events_array;
- int stats_size;
- int events_size;
+
+ /* overrides for v1 */
+ const unsigned int *vmstats_array;
+ const unsigned int *vmevents_array;
+
+ int vmstats_size;
+ int vmevents_size;
};
-static void accumulate_memcg_tree(struct mem_cgroup *memcg,
- struct accumulated_stats *acc)
+static void accumulate_vmstats(struct mem_cgroup *memcg,
+ struct accumulated_vmstats *acc)
{
struct mem_cgroup *mi;
int i;
for_each_mem_cgroup_tree(mi, memcg) {
- for (i = 0; i < acc->stats_size; i++)
- acc->stat[i] += memcg_page_state(mi,
- acc->stats_array ? acc->stats_array[i] : i);
+ for (i = 0; i < acc->vmstats_size; i++)
+ acc->vmstats[i] += memcg_page_state(mi,
+ acc->vmstats_array ? acc->vmstats_array[i] : i);
- for (i = 0; i < acc->events_size; i++)
- acc->events[i] += memcg_sum_events(mi,
- acc->events_array ? acc->events_array[i] : i);
+ for (i = 0; i < acc->vmevents_size; i++)
+ acc->vmevents[i] += memcg_sum_events(mi,
+ acc->vmevents_array
+ ? acc->vmevents_array[i] : i);
for (i = 0; i < NR_LRU_LISTS; i++)
acc->lru_pages[i] +=
@@ -3417,7 +3421,7 @@ static int memcg_stat_show(struct seq_file *m, void *v)
unsigned long memory, memsw;
struct mem_cgroup *mi;
unsigned int i;
- struct accumulated_stats acc;
+ struct accumulated_vmstats acc;
BUILD_BUG_ON(ARRAY_SIZE(memcg1_stat_names) != ARRAY_SIZE(memcg1_stats));
BUILD_BUG_ON(ARRAY_SIZE(mem_cgroup_lru_names) != NR_LRU_LISTS);
@@ -3451,22 +3455,22 @@ static int memcg_stat_show(struct seq_file *m, void *v)
(u64)memsw * PAGE_SIZE);
memset(&acc, 0, sizeof(acc));
- acc.stats_size = ARRAY_SIZE(memcg1_stats);
- acc.stats_array = memcg1_stats;
- acc.events_size = ARRAY_SIZE(memcg1_events);
- acc.events_array = memcg1_events;
- accumulate_memcg_tree(memcg, &acc);
+ acc.vmstats_size = ARRAY_SIZE(memcg1_stats);
+ acc.vmstats_array = memcg1_stats;
+ acc.vmevents_size = ARRAY_SIZE(memcg1_events);
+ acc.vmevents_array = memcg1_events;
+ accumulate_vmstats(memcg, &acc);
for (i = 0; i < ARRAY_SIZE(memcg1_stats); i++) {
if (memcg1_stats[i] == MEMCG_SWAP && !do_memsw_account())
continue;
seq_printf(m, "total_%s %llu\n", memcg1_stat_names[i],
- (u64)acc.stat[i] * PAGE_SIZE);
+ (u64)acc.vmstats[i] * PAGE_SIZE);
}
for (i = 0; i < ARRAY_SIZE(memcg1_events); i++)
seq_printf(m, "total_%s %llu\n", memcg1_event_names[i],
- (u64)acc.events[i]);
+ (u64)acc.vmevents[i]);
for (i = 0; i < NR_LRU_LISTS; i++)
seq_printf(m, "total_%s %llu\n", mem_cgroup_lru_names[i],
@@ -4431,7 +4435,7 @@ static void __mem_cgroup_free(struct mem_cgroup *memcg)
for_each_node(node)
free_mem_cgroup_per_node_info(memcg, node);
- free_percpu(memcg->stat_cpu);
+ free_percpu(memcg->vmstats_percpu);
kfree(memcg);
}
@@ -4460,8 +4464,8 @@ static struct mem_cgroup *mem_cgroup_alloc(void)
if (memcg->id.id < 0)
goto fail;
- memcg->stat_cpu = alloc_percpu(struct mem_cgroup_stat_cpu);
- if (!memcg->stat_cpu)
+ memcg->vmstats_percpu = alloc_percpu(struct memcg_vmstats_percpu);
+ if (!memcg->vmstats_percpu)
goto fail;
for_each_node(node)
@@ -5547,7 +5551,7 @@ static int memory_events_show(struct seq_file *m, void *v)
static int memory_stat_show(struct seq_file *m, void *v)
{
struct mem_cgroup *memcg = mem_cgroup_from_seq(m);
- struct accumulated_stats acc;
+ struct accumulated_vmstats acc;
int i;
/*
@@ -5562,30 +5566,30 @@ static int memory_stat_show(struct seq_file *m, void *v)
*/
memset(&acc, 0, sizeof(acc));
- acc.stats_size = MEMCG_NR_STAT;
- acc.events_size = NR_VM_EVENT_ITEMS;
- accumulate_memcg_tree(memcg, &acc);
+ acc.vmstats_size = MEMCG_NR_STAT;
+ acc.vmevents_size = NR_VM_EVENT_ITEMS;
+ accumulate_vmstats(memcg, &acc);
seq_printf(m, "anon %llu\n",
- (u64)acc.stat[MEMCG_RSS] * PAGE_SIZE);
+ (u64)acc.vmstats[MEMCG_RSS] * PAGE_SIZE);
seq_printf(m, "file %llu\n",
- (u64)acc.stat[MEMCG_CACHE] * PAGE_SIZE);
+ (u64)acc.vmstats[MEMCG_CACHE] * PAGE_SIZE);
seq_printf(m, "kernel_stack %llu\n",
- (u64)acc.stat[MEMCG_KERNEL_STACK_KB] * 1024);
+ (u64)acc.vmstats[MEMCG_KERNEL_STACK_KB] * 1024);
seq_printf(m, "slab %llu\n",
- (u64)(acc.stat[NR_SLAB_RECLAIMABLE] +
- acc.stat[NR_SLAB_UNRECLAIMABLE]) * PAGE_SIZE);
+ (u64)(acc.vmstats[NR_SLAB_RECLAIMABLE] +
+ acc.vmstats[NR_SLAB_UNRECLAIMABLE]) * PAGE_SIZE);
seq_printf(m, "sock %llu\n",
- (u64)acc.stat[MEMCG_SOCK] * PAGE_SIZE);
+ (u64)acc.vmstats[MEMCG_SOCK] * PAGE_SIZE);
seq_printf(m, "shmem %llu\n",
- (u64)acc.stat[NR_SHMEM] * PAGE_SIZE);
+ (u64)acc.vmstats[NR_SHMEM] * PAGE_SIZE);
seq_printf(m, "file_mapped %llu\n",
- (u64)acc.stat[NR_FILE_MAPPED] * PAGE_SIZE);
+ (u64)acc.vmstats[NR_FILE_MAPPED] * PAGE_SIZE);
seq_printf(m, "file_dirty %llu\n",
- (u64)acc.stat[NR_FILE_DIRTY] * PAGE_SIZE);
+ (u64)acc.vmstats[NR_FILE_DIRTY] * PAGE_SIZE);
seq_printf(m, "file_writeback %llu\n",
- (u64)acc.stat[NR_WRITEBACK] * PAGE_SIZE);
+ (u64)acc.vmstats[NR_WRITEBACK] * PAGE_SIZE);
/*
* TODO: We should eventually replace our own MEMCG_RSS_HUGE counter
@@ -5594,43 +5598,43 @@ static int memory_stat_show(struct seq_file *m, void *v)
* where the page->mem_cgroup is set up and stable.
*/
seq_printf(m, "anon_thp %llu\n",
- (u64)acc.stat[MEMCG_RSS_HUGE] * PAGE_SIZE);
+ (u64)acc.vmstats[MEMCG_RSS_HUGE] * PAGE_SIZE);
for (i = 0; i < NR_LRU_LISTS; i++)
seq_printf(m, "%s %llu\n", mem_cgroup_lru_names[i],
(u64)acc.lru_pages[i] * PAGE_SIZE);
seq_printf(m, "slab_reclaimable %llu\n",
- (u64)acc.stat[NR_SLAB_RECLAIMABLE] * PAGE_SIZE);
+ (u64)acc.vmstats[NR_SLAB_RECLAIMABLE] * PAGE_SIZE);
seq_printf(m, "slab_unreclaimable %llu\n",
- (u64)acc.stat[NR_SLAB_UNRECLAIMABLE] * PAGE_SIZE);
+ (u64)acc.vmstats[NR_SLAB_UNRECLAIMABLE] * PAGE_SIZE);
/* Accumulated memory events */
- seq_printf(m, "pgfault %lu\n", acc.events[PGFAULT]);
- seq_printf(m, "pgmajfault %lu\n", acc.events[PGMAJFAULT]);
+ seq_printf(m, "pgfault %lu\n", acc.vmevents[PGFAULT]);
+ seq_printf(m, "pgmajfault %lu\n", acc.vmevents[PGMAJFAULT]);
seq_printf(m, "workingset_refault %lu\n",
- acc.stat[WORKINGSET_REFAULT]);
+ acc.vmstats[WORKINGSET_REFAULT]);
seq_printf(m, "workingset_activate %lu\n",
- acc.stat[WORKINGSET_ACTIVATE]);
+ acc.vmstats[WORKINGSET_ACTIVATE]);
seq_printf(m, "workingset_nodereclaim %lu\n",
- acc.stat[WORKINGSET_NODERECLAIM]);
-
- seq_printf(m, "pgrefill %lu\n", acc.events[PGREFILL]);
- seq_printf(m, "pgscan %lu\n", acc.events[PGSCAN_KSWAPD] +
- acc.events[PGSCAN_DIRECT]);
- seq_printf(m, "pgsteal %lu\n", acc.events[PGSTEAL_KSWAPD] +
- acc.events[PGSTEAL_DIRECT]);
- seq_printf(m, "pgactivate %lu\n", acc.events[PGACTIVATE]);
- seq_printf(m, "pgdeactivate %lu\n", acc.events[PGDEACTIVATE]);
- seq_printf(m, "pglazyfree %lu\n", acc.events[PGLAZYFREE]);
- seq_printf(m, "pglazyfreed %lu\n", acc.events[PGLAZYFREED]);
+ acc.vmstats[WORKINGSET_NODERECLAIM]);
+
+ seq_printf(m, "pgrefill %lu\n", acc.vmevents[PGREFILL]);
+ seq_printf(m, "pgscan %lu\n", acc.vmevents[PGSCAN_KSWAPD] +
+ acc.vmevents[PGSCAN_DIRECT]);
+ seq_printf(m, "pgsteal %lu\n", acc.vmevents[PGSTEAL_KSWAPD] +
+ acc.vmevents[PGSTEAL_DIRECT]);
+ seq_printf(m, "pgactivate %lu\n", acc.vmevents[PGACTIVATE]);
+ seq_printf(m, "pgdeactivate %lu\n", acc.vmevents[PGDEACTIVATE]);
+ seq_printf(m, "pglazyfree %lu\n", acc.vmevents[PGLAZYFREE]);
+ seq_printf(m, "pglazyfreed %lu\n", acc.vmevents[PGLAZYFREED]);
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
- seq_printf(m, "thp_fault_alloc %lu\n", acc.events[THP_FAULT_ALLOC]);
+ seq_printf(m, "thp_fault_alloc %lu\n", acc.vmevents[THP_FAULT_ALLOC]);
seq_printf(m, "thp_collapse_alloc %lu\n",
- acc.events[THP_COLLAPSE_ALLOC]);
+ acc.vmevents[THP_COLLAPSE_ALLOC]);
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
return 0;
@@ -6066,7 +6070,7 @@ static void uncharge_batch(const struct uncharge_gather *ug)
__mod_memcg_state(ug->memcg, MEMCG_RSS_HUGE, -ug->nr_huge);
__mod_memcg_state(ug->memcg, NR_SHMEM, -ug->nr_shmem);
__count_memcg_events(ug->memcg, PGPGOUT, ug->pgpgout);
- __this_cpu_add(ug->memcg->stat_cpu->nr_page_events, nr_pages);
+ __this_cpu_add(ug->memcg->vmstats_percpu->nr_page_events, nr_pages);
memcg_check_events(ug->memcg, ug->dummy_page);
local_irq_restore(flags);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 0b469fcbd262ef6149cf921b1c23e1ea46d982fc..993ee46d3124f80cdc528e1ef9f411c2c6ce9d13 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6557,8 +6557,8 @@ static void __ref setup_usemap(struct pglist_data *pgdat,
zone->pageblock_flags = NULL;
if (usemapsize) {
zone->pageblock_flags =
- memblock_alloc_node_nopanic(usemapsize,
- pgdat->node_id);
+ memblock_alloc_node(usemapsize, SMP_CACHE_BYTES,
+ pgdat->node_id);
if (!zone->pageblock_flags)
panic("Failed to allocate %ld bytes for zone %s pageblock flags on node %d\n",
usemapsize, zone->name, pgdat->node_id);
@@ -6791,7 +6791,8 @@ static void __ref alloc_node_mem_map(struct pglist_data *pgdat)
end = pgdat_end_pfn(pgdat);
end = ALIGN(end, MAX_ORDER_NR_PAGES);
size = (end - start) * sizeof(struct page);
- map = memblock_alloc_node_nopanic(size, pgdat->node_id);
+ map = memblock_alloc_node(size, SMP_CACHE_BYTES,
+ pgdat->node_id);
if (!map)
panic("Failed to allocate %ld bytes for node %d memory map\n",
size, pgdat->node_id);
@@ -8071,8 +8072,7 @@ void *__init alloc_large_system_hash(const char *tablename,
size = bucketsize << log2qty;
if (flags & HASH_EARLY) {
if (flags & HASH_ZERO)
- table = memblock_alloc_nopanic(size,
- SMP_CACHE_BYTES);
+ table = memblock_alloc(size, SMP_CACHE_BYTES);
else
table = memblock_alloc_raw(size,
SMP_CACHE_BYTES);
diff --git a/mm/page_ext.c b/mm/page_ext.c
index ab4244920e0f83ac71134d9a3de2c9b2888faaea..d8f1aca4ad43696aa8f368c335a04c69918b77ef 100644
--- a/mm/page_ext.c
+++ b/mm/page_ext.c
@@ -161,7 +161,7 @@ static int __init alloc_node_page_ext(int nid)
table_size = get_entry_size() * nr_pages;
- base = memblock_alloc_try_nid_nopanic(
+ base = memblock_alloc_try_nid(
table_size, PAGE_SIZE, __pa(MAX_DMA_ADDRESS),
MEMBLOCK_ALLOC_ACCESSIBLE, nid);
if (!base)
diff --git a/mm/percpu.c b/mm/percpu.c
index c5c750781628d7a793488dc8fd7d62019932bf90..2e6fc8d552c96d58f615be2fd3addadefd01f5c0 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1086,6 +1086,7 @@ static struct pcpu_chunk * __init pcpu_alloc_first_chunk(unsigned long tmp_addr,
struct pcpu_chunk *chunk;
unsigned long aligned_addr, lcm_align;
int start_offset, offset_bits, region_size, region_bits;
+ size_t alloc_size;
/* region calculations */
aligned_addr = tmp_addr & PAGE_MASK;
@@ -1101,9 +1102,12 @@ static struct pcpu_chunk * __init pcpu_alloc_first_chunk(unsigned long tmp_addr,
region_size = ALIGN(start_offset + map_size, lcm_align);
/* allocate chunk */
- chunk = memblock_alloc(sizeof(struct pcpu_chunk) +
- BITS_TO_LONGS(region_size >> PAGE_SHIFT),
- SMP_CACHE_BYTES);
+ alloc_size = sizeof(struct pcpu_chunk) +
+ BITS_TO_LONGS(region_size >> PAGE_SHIFT);
+ chunk = memblock_alloc(alloc_size, SMP_CACHE_BYTES);
+ if (!chunk)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ alloc_size);
INIT_LIST_HEAD(&chunk->list);
@@ -1114,12 +1118,25 @@ static struct pcpu_chunk * __init pcpu_alloc_first_chunk(unsigned long tmp_addr,
chunk->nr_pages = region_size >> PAGE_SHIFT;
region_bits = pcpu_chunk_map_bits(chunk);
- chunk->alloc_map = memblock_alloc(BITS_TO_LONGS(region_bits) * sizeof(chunk->alloc_map[0]),
- SMP_CACHE_BYTES);
- chunk->bound_map = memblock_alloc(BITS_TO_LONGS(region_bits + 1) * sizeof(chunk->bound_map[0]),
- SMP_CACHE_BYTES);
- chunk->md_blocks = memblock_alloc(pcpu_chunk_nr_blocks(chunk) * sizeof(chunk->md_blocks[0]),
- SMP_CACHE_BYTES);
+ alloc_size = BITS_TO_LONGS(region_bits) * sizeof(chunk->alloc_map[0]);
+ chunk->alloc_map = memblock_alloc(alloc_size, SMP_CACHE_BYTES);
+ if (!chunk->alloc_map)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ alloc_size);
+
+ alloc_size =
+ BITS_TO_LONGS(region_bits + 1) * sizeof(chunk->bound_map[0]);
+ chunk->bound_map = memblock_alloc(alloc_size, SMP_CACHE_BYTES);
+ if (!chunk->bound_map)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ alloc_size);
+
+ alloc_size = pcpu_chunk_nr_blocks(chunk) * sizeof(chunk->md_blocks[0]);
+ chunk->md_blocks = memblock_alloc(alloc_size, SMP_CACHE_BYTES);
+ if (!chunk->md_blocks)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ alloc_size);
+
pcpu_init_md_blocks(chunk);
/* manage populated page bitmap */
@@ -1888,7 +1905,7 @@ struct pcpu_alloc_info * __init pcpu_alloc_alloc_info(int nr_groups,
__alignof__(ai->groups[0].cpu_map[0]));
ai_size = base_size + nr_units * sizeof(ai->groups[0].cpu_map[0]);
- ptr = memblock_alloc_nopanic(PFN_ALIGN(ai_size), PAGE_SIZE);
+ ptr = memblock_alloc(PFN_ALIGN(ai_size), PAGE_SIZE);
if (!ptr)
return NULL;
ai = ptr;
@@ -2044,6 +2061,7 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai,
int group, unit, i;
int map_size;
unsigned long tmp_addr;
+ size_t alloc_size;
#define PCPU_SETUP_BUG_ON(cond) do { \
if (unlikely(cond)) { \
@@ -2075,14 +2093,29 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai,
PCPU_SETUP_BUG_ON(pcpu_verify_alloc_info(ai) < 0);
/* process group information and build config tables accordingly */
- group_offsets = memblock_alloc(ai->nr_groups * sizeof(group_offsets[0]),
- SMP_CACHE_BYTES);
- group_sizes = memblock_alloc(ai->nr_groups * sizeof(group_sizes[0]),
- SMP_CACHE_BYTES);
- unit_map = memblock_alloc(nr_cpu_ids * sizeof(unit_map[0]),
- SMP_CACHE_BYTES);
- unit_off = memblock_alloc(nr_cpu_ids * sizeof(unit_off[0]),
- SMP_CACHE_BYTES);
+ alloc_size = ai->nr_groups * sizeof(group_offsets[0]);
+ group_offsets = memblock_alloc(alloc_size, SMP_CACHE_BYTES);
+ if (!group_offsets)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ alloc_size);
+
+ alloc_size = ai->nr_groups * sizeof(group_sizes[0]);
+ group_sizes = memblock_alloc(alloc_size, SMP_CACHE_BYTES);
+ if (!group_sizes)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ alloc_size);
+
+ alloc_size = nr_cpu_ids * sizeof(unit_map[0]);
+ unit_map = memblock_alloc(alloc_size, SMP_CACHE_BYTES);
+ if (!unit_map)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ alloc_size);
+
+ alloc_size = nr_cpu_ids * sizeof(unit_off[0]);
+ unit_off = memblock_alloc(alloc_size, SMP_CACHE_BYTES);
+ if (!unit_off)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ alloc_size);
for (cpu = 0; cpu < nr_cpu_ids; cpu++)
unit_map[cpu] = UINT_MAX;
@@ -2148,6 +2181,9 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai,
pcpu_nr_slots = __pcpu_size_to_slot(pcpu_unit_size) + 2;
pcpu_slot = memblock_alloc(pcpu_nr_slots * sizeof(pcpu_slot[0]),
SMP_CACHE_BYTES);
+ if (!pcpu_slot)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ pcpu_nr_slots * sizeof(pcpu_slot[0]));
for (i = 0; i < pcpu_nr_slots; i++)
INIT_LIST_HEAD(&pcpu_slot[i]);
@@ -2460,7 +2496,7 @@ int __init pcpu_embed_first_chunk(size_t reserved_size, size_t dyn_size,
size_sum = ai->static_size + ai->reserved_size + ai->dyn_size;
areas_size = PFN_ALIGN(ai->nr_groups * sizeof(void *));
- areas = memblock_alloc_nopanic(areas_size, SMP_CACHE_BYTES);
+ areas = memblock_alloc(areas_size, SMP_CACHE_BYTES);
if (!areas) {
rc = -ENOMEM;
goto out_free;
@@ -2602,6 +2638,9 @@ int __init pcpu_page_first_chunk(size_t reserved_size,
pages_size = PFN_ALIGN(unit_pages * num_possible_cpus() *
sizeof(pages[0]));
pages = memblock_alloc(pages_size, SMP_CACHE_BYTES);
+ if (!pages)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ pages_size);
/* allocate pages */
j = 0;
@@ -2690,8 +2729,7 @@ EXPORT_SYMBOL(__per_cpu_offset);
static void * __init pcpu_dfl_fc_alloc(unsigned int cpu, size_t size,
size_t align)
{
- return memblock_alloc_from_nopanic(
- size, align, __pa(MAX_DMA_ADDRESS));
+ return memblock_alloc_from(size, align, __pa(MAX_DMA_ADDRESS));
}
static void __init pcpu_dfl_fc_free(void *ptr, size_t size)
@@ -2739,9 +2777,7 @@ void __init setup_per_cpu_areas(void)
void *fc;
ai = pcpu_alloc_alloc_info(1, 1);
- fc = memblock_alloc_from_nopanic(unit_size,
- PAGE_SIZE,
- __pa(MAX_DMA_ADDRESS));
+ fc = memblock_alloc_from(unit_size, PAGE_SIZE, __pa(MAX_DMA_ADDRESS));
if (!ai || !fc)
panic("Failed to allocate memory for percpu areas.");
/* kmemleak tracks the percpu allocations separately */
diff --git a/mm/sparse.c b/mm/sparse.c
index 77a0554fa5bd3ea12fb78fd47eccce42603f474b..69904aa6165bf13b89a44d6abf84609fea2076ba 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -65,11 +65,15 @@ static noinline struct mem_section __ref *sparse_index_alloc(int nid)
unsigned long array_size = SECTIONS_PER_ROOT *
sizeof(struct mem_section);
- if (slab_is_available())
+ if (slab_is_available()) {
section = kzalloc_node(array_size, GFP_KERNEL, nid);
- else
+ } else {
section = memblock_alloc_node(array_size, SMP_CACHE_BYTES,
nid);
+ if (!section)
+ panic("%s: Failed to allocate %lu bytes nid=%d\n",
+ __func__, array_size, nid);
+ }
return section;
}
@@ -218,6 +222,9 @@ void __init memory_present(int nid, unsigned long start, unsigned long end)
size = sizeof(struct mem_section*) * NR_SECTION_ROOTS;
align = 1 << (INTERNODE_CACHE_SHIFT);
mem_section = memblock_alloc(size, align);
+ if (!mem_section)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, size, align);
}
#endif
@@ -323,9 +330,7 @@ sparse_early_usemaps_alloc_pgdat_section(struct pglist_data *pgdat,
limit = goal + (1UL << PA_SECTION_SHIFT);
nid = early_pfn_to_nid(goal >> PAGE_SHIFT);
again:
- p = memblock_alloc_try_nid_nopanic(size,
- SMP_CACHE_BYTES, goal, limit,
- nid);
+ p = memblock_alloc_try_nid(size, SMP_CACHE_BYTES, goal, limit, nid);
if (!p && limit) {
limit = 0;
goto again;
@@ -379,7 +384,7 @@ static unsigned long * __init
sparse_early_usemaps_alloc_pgdat_section(struct pglist_data *pgdat,
unsigned long size)
{
- return memblock_alloc_node_nopanic(size, pgdat->node_id);
+ return memblock_alloc_node(size, SMP_CACHE_BYTES, pgdat->node_id);
}
static void __init check_usemap_section_nr(int nid, unsigned long *usemap)
@@ -404,13 +409,18 @@ struct page __init *sparse_mem_map_populate(unsigned long pnum, int nid,
{
unsigned long size = section_map_size();
struct page *map = sparse_buffer_alloc(size);
+ phys_addr_t addr = __pa(MAX_DMA_ADDRESS);
if (map)
return map;
map = memblock_alloc_try_nid(size,
- PAGE_SIZE, __pa(MAX_DMA_ADDRESS),
+ PAGE_SIZE, addr,
MEMBLOCK_ALLOC_ACCESSIBLE, nid);
+ if (!map)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx nid=%d from=%pa\n",
+ __func__, size, PAGE_SIZE, nid, &addr);
+
return map;
}
#endif /* !CONFIG_SPARSEMEM_VMEMMAP */
@@ -420,10 +430,11 @@ static void *sparsemap_buf_end __meminitdata;
static void __init sparse_buffer_init(unsigned long size, int nid)
{
+ phys_addr_t addr = __pa(MAX_DMA_ADDRESS);
WARN_ON(sparsemap_buf); /* forgot to call sparse_buffer_fini()? */
sparsemap_buf =
memblock_alloc_try_nid_raw(size, PAGE_SIZE,
- __pa(MAX_DMA_ADDRESS),
+ addr,
MEMBLOCK_ALLOC_ACCESSIBLE, nid);
sparsemap_buf_end = sparsemap_buf + size;
}
diff --git a/net/openvswitch/flow.h b/net/openvswitch/flow.h
index ba01fc4270bdcebc12743e5f32625fc14d9e9a0a..5b8e5bd7457b4b418c4131d5e87e54e4614d351e 100644
--- a/net/openvswitch/flow.h
+++ b/net/openvswitch/flow.h
@@ -30,7 +30,6 @@
#include <linux/in6.h>
#include <linux/jiffies.h>
#include <linux/time.h>
-#include <linux/flex_array.h>
#include <linux/cpumask.h>
#include <net/inet_ecn.h>
#include <net/ip_tunnels.h>
diff --git a/net/openvswitch/flow_netlink.h b/net/openvswitch/flow_netlink.h
index 6657606b2b4767fe5c2fa4b2c362bc834c806f93..66f9553758a5ad5681246c2199f42f82246dd36d 100644
--- a/net/openvswitch/flow_netlink.h
+++ b/net/openvswitch/flow_netlink.h
@@ -30,7 +30,6 @@
#include <linux/in6.h>
#include <linux/jiffies.h>
#include <linux/time.h>
-#include <linux/flex_array.h>
#include <net/inet_ecn.h>
#include <net/ip_tunnels.h>
diff --git a/net/openvswitch/flow_table.c b/net/openvswitch/flow_table.c
index 80ea2a71852e57b26936f3563527c066c4bc3312..cfb0098c9a016abf8b4e9329818210aef83f4aa8 100644
--- a/net/openvswitch/flow_table.c
+++ b/net/openvswitch/flow_table.c
@@ -111,29 +111,6 @@ int ovs_flow_tbl_count(const struct flow_table *table)
return table->count;
}
-static struct flex_array *alloc_buckets(unsigned int n_buckets)
-{
- struct flex_array *buckets;
- int i, err;
-
- buckets = flex_array_alloc(sizeof(struct hlist_head),
- n_buckets, GFP_KERNEL);
- if (!buckets)
- return NULL;
-
- err = flex_array_prealloc(buckets, 0, n_buckets, GFP_KERNEL);
- if (err) {
- flex_array_free(buckets);
- return NULL;
- }
-
- for (i = 0; i < n_buckets; i++)
- INIT_HLIST_HEAD((struct hlist_head *)
- flex_array_get(buckets, i));
-
- return buckets;
-}
-
static void flow_free(struct sw_flow *flow)
{
int cpu;
@@ -168,31 +145,30 @@ void ovs_flow_free(struct sw_flow *flow, bool deferred)
flow_free(flow);
}
-static void free_buckets(struct flex_array *buckets)
-{
- flex_array_free(buckets);
-}
-
-
static void __table_instance_destroy(struct table_instance *ti)
{
- free_buckets(ti->buckets);
+ kvfree(ti->buckets);
kfree(ti);
}
static struct table_instance *table_instance_alloc(int new_size)
{
struct table_instance *ti = kmalloc(sizeof(*ti), GFP_KERNEL);
+ int i;
if (!ti)
return NULL;
- ti->buckets = alloc_buckets(new_size);
-
+ ti->buckets = kvmalloc_array(new_size, sizeof(struct hlist_head),
+ GFP_KERNEL);
if (!ti->buckets) {
kfree(ti);
return NULL;
}
+
+ for (i = 0; i < new_size; i++)
+ INIT_HLIST_HEAD(&ti->buckets[i]);
+
ti->n_buckets = new_size;
ti->node_ver = 0;
ti->keep_flows = false;
@@ -249,7 +225,7 @@ static void table_instance_destroy(struct table_instance *ti,
for (i = 0; i < ti->n_buckets; i++) {
struct sw_flow *flow;
- struct hlist_head *head = flex_array_get(ti->buckets, i);
+ struct hlist_head *head = &ti->buckets[i];
struct hlist_node *n;
int ver = ti->node_ver;
int ufid_ver = ufid_ti->node_ver;
@@ -294,7 +270,7 @@ struct sw_flow *ovs_flow_tbl_dump_next(struct table_instance *ti,
ver = ti->node_ver;
while (*bucket < ti->n_buckets) {
i = 0;
- head = flex_array_get(ti->buckets, *bucket);
+ head = &ti->buckets[*bucket];
hlist_for_each_entry_rcu(flow, head, flow_table.node[ver]) {
if (i < *last) {
i++;
@@ -313,8 +289,7 @@ struct sw_flow *ovs_flow_tbl_dump_next(struct table_instance *ti,
static struct hlist_head *find_bucket(struct table_instance *ti, u32 hash)
{
hash = jhash_1word(hash, ti->hash_seed);
- return flex_array_get(ti->buckets,
- (hash & (ti->n_buckets - 1)));
+ return &ti->buckets[hash & (ti->n_buckets - 1)];
}
static void table_instance_insert(struct table_instance *ti,
@@ -347,9 +322,7 @@ static void flow_table_copy_flows(struct table_instance *old,
/* Insert in new table. */
for (i = 0; i < old->n_buckets; i++) {
struct sw_flow *flow;
- struct hlist_head *head;
-
- head = flex_array_get(old->buckets, i);
+ struct hlist_head *head = &old->buckets[i];
if (ufid)
hlist_for_each_entry(flow, head,
diff --git a/net/openvswitch/flow_table.h b/net/openvswitch/flow_table.h
index 2dd9900f533df364fb5fb7b1772b9805b28092cc..de5ec6cf51744701e6f954c9264472e45f916a05 100644
--- a/net/openvswitch/flow_table.h
+++ b/net/openvswitch/flow_table.h
@@ -29,7 +29,6 @@
#include <linux/in6.h>
#include <linux/jiffies.h>
#include <linux/time.h>
-#include <linux/flex_array.h>
#include <net/inet_ecn.h>
#include <net/ip_tunnels.h>
@@ -37,7 +36,7 @@
#include "flow.h"
struct table_instance {
- struct flex_array *buckets;
+ struct hlist_head *buckets;
unsigned int n_buckets;
struct rcu_head rcu;
int node_ver;
diff --git a/net/sctp/stream.c b/net/sctp/stream.c
index 2936ed17bf9ef8ce30046d148a249b80a341d59f..2c7bffe1f9a6aad68fd05ff5f3d229265640180d 100644
--- a/net/sctp/stream.c
+++ b/net/sctp/stream.c
@@ -37,66 +37,6 @@
#include <net/sctp/sm.h>
#include <net/sctp/stream_sched.h>
-static struct flex_array *fa_alloc(size_t elem_size, size_t elem_count,
- gfp_t gfp)
-{
- struct flex_array *result;
- int err;
-
- result = flex_array_alloc(elem_size, elem_count, gfp);
- if (result) {
- err = flex_array_prealloc(result, 0, elem_count, gfp);
- if (err) {
- flex_array_free(result);
- result = NULL;
- }
- }
-
- return result;
-}
-
-static void fa_free(struct flex_array *fa)
-{
- if (fa)
- flex_array_free(fa);
-}
-
-static void fa_copy(struct flex_array *fa, struct flex_array *from,
- size_t index, size_t count)
-{
- void *elem;
-
- while (count--) {
- elem = flex_array_get(from, index);
- flex_array_put(fa, index, elem, 0);
- index++;
- }
-}
-
-static void fa_zero(struct flex_array *fa, size_t index, size_t count)
-{
- void *elem;
-
- while (count--) {
- elem = flex_array_get(fa, index);
- memset(elem, 0, fa->element_size);
- index++;
- }
-}
-
-static size_t fa_index(struct flex_array *fa, void *elem, size_t count)
-{
- size_t index = 0;
-
- while (count--) {
- if (elem == flex_array_get(fa, index))
- break;
- index++;
- }
-
- return index;
-}
-
/* Migrates chunks from stream queues to new stream queues if needed,
* but not across associations. Also, removes those chunks to streams
* higher than the new max.
@@ -153,53 +93,32 @@ static void sctp_stream_outq_migrate(struct sctp_stream *stream,
static int sctp_stream_alloc_out(struct sctp_stream *stream, __u16 outcnt,
gfp_t gfp)
{
- struct flex_array *out;
- size_t elem_size = sizeof(struct sctp_stream_out);
-
- out = fa_alloc(elem_size, outcnt, gfp);
- if (!out)
- return -ENOMEM;
-
- if (stream->out) {
- fa_copy(out, stream->out, 0, min(outcnt, stream->outcnt));
- if (stream->out_curr) {
- size_t index = fa_index(stream->out, stream->out_curr,
- stream->outcnt);
-
- BUG_ON(index == stream->outcnt);
- stream->out_curr = flex_array_get(out, index);
- }
- fa_free(stream->out);
- }
+ int ret;
- if (outcnt > stream->outcnt)
- fa_zero(out, stream->outcnt, (outcnt - stream->outcnt));
+ if (outcnt <= stream->outcnt)
+ return 0;
- stream->out = out;
+ ret = genradix_prealloc(&stream->out, outcnt, gfp);
+ if (ret)
+ return ret;
+ stream->outcnt = outcnt;
return 0;
}
static int sctp_stream_alloc_in(struct sctp_stream *stream, __u16 incnt,
gfp_t gfp)
{
- struct flex_array *in;
- size_t elem_size = sizeof(struct sctp_stream_in);
-
- in = fa_alloc(elem_size, incnt, gfp);
- if (!in)
- return -ENOMEM;
-
- if (stream->in) {
- fa_copy(in, stream->in, 0, min(incnt, stream->incnt));
- fa_free(stream->in);
- }
+ int ret;
- if (incnt > stream->incnt)
- fa_zero(in, stream->incnt, (incnt - stream->incnt));
+ if (incnt <= stream->incnt)
+ return 0;
- stream->in = in;
+ ret = genradix_prealloc(&stream->in, incnt, gfp);
+ if (ret)
+ return ret;
+ stream->incnt = incnt;
return 0;
}
@@ -226,7 +145,6 @@ int sctp_stream_init(struct sctp_stream *stream, __u16 outcnt, __u16 incnt,
if (ret)
goto out;
- stream->outcnt = outcnt;
for (i = 0; i < stream->outcnt; i++)
SCTP_SO(stream, i)->state = SCTP_STREAM_OPEN;
@@ -240,14 +158,11 @@ int sctp_stream_init(struct sctp_stream *stream, __u16 outcnt, __u16 incnt,
ret = sctp_stream_alloc_in(stream, incnt, gfp);
if (ret) {
sched->free(stream);
- fa_free(stream->out);
- stream->out = NULL;
+ genradix_free(&stream->out);
stream->outcnt = 0;
goto out;
}
- stream->incnt = incnt;
-
out:
return ret;
}
@@ -272,8 +187,8 @@ void sctp_stream_free(struct sctp_stream *stream)
sched->free(stream);
for (i = 0; i < stream->outcnt; i++)
kfree(SCTP_SO(stream, i)->ext);
- fa_free(stream->out);
- fa_free(stream->in);
+ genradix_free(&stream->out);
+ genradix_free(&stream->in);
}
void sctp_stream_clear(struct sctp_stream *stream)
@@ -304,8 +219,8 @@ void sctp_stream_update(struct sctp_stream *stream, struct sctp_stream *new)
sched->sched_all(stream);
- new->out = NULL;
- new->in = NULL;
+ new->out.tree.root = NULL;
+ new->in.tree.root = NULL;
new->outcnt = 0;
new->incnt = 0;
}
@@ -557,8 +472,6 @@ int sctp_send_add_streams(struct sctp_association *asoc,
goto out;
}
- stream->outcnt = outcnt;
-
asoc->strreset_outstanding = !!out + !!in;
out:
diff --git a/net/sctp/stream_interleave.c b/net/sctp/stream_interleave.c
index a6bf215794661db08ab7373c2a34b402e1605b2d..102c6fefe38c93be2760ca7df0adfe62bead1313 100644
--- a/net/sctp/stream_interleave.c
+++ b/net/sctp/stream_interleave.c
@@ -101,7 +101,7 @@ static void sctp_chunk_assign_mid(struct sctp_chunk *chunk)
static bool sctp_validate_data(struct sctp_chunk *chunk)
{
- const struct sctp_stream *stream;
+ struct sctp_stream *stream;
__u16 sid, ssn;
if (chunk->chunk_hdr->type != SCTP_CID_DATA)
diff --git a/samples/mic/mpssd/mpssd.h b/samples/mic/mpssd/mpssd.h
index 8bd64944aacce33f0be119e4c9e770ae81d13c77..82d3b519f0e7979b46c42b2fcf69c15c8d0e3fcf 100644
--- a/samples/mic/mpssd/mpssd.h
+++ b/samples/mic/mpssd/mpssd.h
@@ -37,21 +37,18 @@
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/stat.h>
-#include <sys/types.h>
#include <sys/mman.h>
#include <sys/utsname.h>
#include <sys/wait.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
-#include <pthread.h>
#include <signal.h>
#include <limits.h>
#include <syslog.h>
#include <getopt.h>
#include <net/if.h>
#include <linux/if_tun.h>
-#include <linux/if_tun.h>
#include <linux/virtio_ids.h>
#define MICSYSFSDIR "/sys/class/mic"
diff --git a/scripts/atomic/gen-atomics.sh b/scripts/atomic/gen-atomics.sh
index 27400b0cd732e2f37733e321dee5742c8cdf6721..000dc6437893baa133224c1d9922e97433c573f4 100644
--- a/scripts/atomic/gen-atomics.sh
+++ b/scripts/atomic/gen-atomics.sh
@@ -13,7 +13,7 @@ gen-atomic-long.sh asm-generic/atomic-long.h
gen-atomic-fallback.sh linux/atomic-fallback.h
EOF
while read script header; do
- ${ATOMICDIR}/${script} ${ATOMICTBL} > ${LINUXDIR}/include/${header}
+ /bin/sh ${ATOMICDIR}/${script} ${ATOMICTBL} > ${LINUXDIR}/include/${header}
HASH="$(sha1sum ${LINUXDIR}/include/${header})"
HASH="${HASH%% *}"
printf "// %s\n" "${HASH}" >> ${LINUXDIR}/include/${header}
diff --git a/security/selinux/ss/avtab.c b/security/selinux/ss/avtab.c
index c0417cf17feeee9bf5a94876553b02ac3119cb59..8c5800750fa85ba4ac329f70e52b8ced05e13ad7 100644
--- a/security/selinux/ss/avtab.c
+++ b/security/selinux/ss/avtab.c
@@ -93,12 +93,10 @@ avtab_insert_node(struct avtab *h, int hvalue,
newnode->next = prev->next;
prev->next = newnode;
} else {
- newnode->next = flex_array_get_ptr(h->htable, hvalue);
- if (flex_array_put_ptr(h->htable, hvalue, newnode,
- GFP_KERNEL|__GFP_ZERO)) {
- kmem_cache_free(avtab_node_cachep, newnode);
- return NULL;
- }
+ struct avtab_node **n = &h->htable[hvalue];
+
+ newnode->next = *n;
+ *n = newnode;
}
h->nel++;
@@ -111,11 +109,11 @@ static int avtab_insert(struct avtab *h, struct avtab_key *key, struct avtab_dat
struct avtab_node *prev, *cur, *newnode;
u16 specified = key->specified & ~(AVTAB_ENABLED|AVTAB_ENABLED_OLD);
- if (!h || !h->htable)
+ if (!h)
return -EINVAL;
hvalue = avtab_hash(key, h->mask);
- for (prev = NULL, cur = flex_array_get_ptr(h->htable, hvalue);
+ for (prev = NULL, cur = h->htable[hvalue];
cur;
prev = cur, cur = cur->next) {
if (key->source_type == cur->key.source_type &&
@@ -156,10 +154,10 @@ avtab_insert_nonunique(struct avtab *h, struct avtab_key *key, struct avtab_datu
struct avtab_node *prev, *cur;
u16 specified = key->specified & ~(AVTAB_ENABLED|AVTAB_ENABLED_OLD);
- if (!h || !h->htable)
+ if (!h)
return NULL;
hvalue = avtab_hash(key, h->mask);
- for (prev = NULL, cur = flex_array_get_ptr(h->htable, hvalue);
+ for (prev = NULL, cur = h->htable[hvalue];
cur;
prev = cur, cur = cur->next) {
if (key->source_type == cur->key.source_type &&
@@ -186,11 +184,11 @@ struct avtab_datum *avtab_search(struct avtab *h, struct avtab_key *key)
struct avtab_node *cur;
u16 specified = key->specified & ~(AVTAB_ENABLED|AVTAB_ENABLED_OLD);
- if (!h || !h->htable)
+ if (!h)
return NULL;
hvalue = avtab_hash(key, h->mask);
- for (cur = flex_array_get_ptr(h->htable, hvalue); cur;
+ for (cur = h->htable[hvalue]; cur;
cur = cur->next) {
if (key->source_type == cur->key.source_type &&
key->target_type == cur->key.target_type &&
@@ -222,11 +220,11 @@ avtab_search_node(struct avtab *h, struct avtab_key *key)
struct avtab_node *cur;
u16 specified = key->specified & ~(AVTAB_ENABLED|AVTAB_ENABLED_OLD);
- if (!h || !h->htable)
+ if (!h)
return NULL;
hvalue = avtab_hash(key, h->mask);
- for (cur = flex_array_get_ptr(h->htable, hvalue); cur;
+ for (cur = h->htable[hvalue]; cur;
cur = cur->next) {
if (key->source_type == cur->key.source_type &&
key->target_type == cur->key.target_type &&
@@ -281,11 +279,11 @@ void avtab_destroy(struct avtab *h)
int i;
struct avtab_node *cur, *temp;
- if (!h || !h->htable)
+ if (!h)
return;
for (i = 0; i < h->nslot; i++) {
- cur = flex_array_get_ptr(h->htable, i);
+ cur = h->htable[i];
while (cur) {
temp = cur;
cur = cur->next;
@@ -295,7 +293,7 @@ void avtab_destroy(struct avtab *h)
kmem_cache_free(avtab_node_cachep, temp);
}
}
- flex_array_free(h->htable);
+ kvfree(h->htable);
h->htable = NULL;
h->nslot = 0;
h->mask = 0;
@@ -303,6 +301,7 @@ void avtab_destroy(struct avtab *h)
int avtab_init(struct avtab *h)
{
+ kvfree(h->htable);
h->htable = NULL;
h->nel = 0;
return 0;
@@ -329,8 +328,7 @@ int avtab_alloc(struct avtab *h, u32 nrules)
nslot = MAX_AVTAB_HASH_BUCKETS;
mask = nslot - 1;
- h->htable = flex_array_alloc(sizeof(struct avtab_node *), nslot,
- GFP_KERNEL | __GFP_ZERO);
+ h->htable = kvcalloc(nslot, sizeof(void *), GFP_KERNEL);
if (!h->htable)
return -ENOMEM;
@@ -353,7 +351,7 @@ void avtab_hash_eval(struct avtab *h, char *tag)
max_chain_len = 0;
chain2_len_sum = 0;
for (i = 0; i < h->nslot; i++) {
- cur = flex_array_get_ptr(h->htable, i);
+ cur = h->htable[i];
if (cur) {
slots_used++;
chain_len = 0;
@@ -646,7 +644,7 @@ int avtab_write(struct policydb *p, struct avtab *a, void *fp)
return rc;
for (i = 0; i < a->nslot; i++) {
- for (cur = flex_array_get_ptr(a->htable, i); cur;
+ for (cur = a->htable[i]; cur;
cur = cur->next) {
rc = avtab_write_item(p, cur, fp);
if (rc)
diff --git a/security/selinux/ss/avtab.h b/security/selinux/ss/avtab.h
index 0d652fad5319743528d27eb20263325e147cf570..de16673b2314a9bcf93673dea1a42f224aa50600 100644
--- a/security/selinux/ss/avtab.h
+++ b/security/selinux/ss/avtab.h
@@ -24,7 +24,6 @@
#define _SS_AVTAB_H_
#include "security.h"
-#include <linux/flex_array.h>
struct avtab_key {
u16 source_type; /* source type */
@@ -84,11 +83,10 @@ struct avtab_node {
};
struct avtab {
- struct flex_array *htable;
+ struct avtab_node **htable;
u32 nel; /* number of elements */
u32 nslot; /* number of hash slots */
u32 mask; /* mask to compute hash func */
-
};
int avtab_init(struct avtab *);
diff --git a/security/selinux/ss/conditional.c b/security/selinux/ss/conditional.c
index f49e522e932d43e35fcc903e6e4cffed12c83ed0..3bbb6034520905f4cb8080d206b528cc3de06d40 100644
--- a/security/selinux/ss/conditional.c
+++ b/security/selinux/ss/conditional.c
@@ -195,7 +195,6 @@ int cond_index_bool(void *key, void *datum, void *datap)
{
struct policydb *p;
struct cond_bool_datum *booldatum;
- struct flex_array *fa;
booldatum = datum;
p = datap;
@@ -203,10 +202,7 @@ int cond_index_bool(void *key, void *datum, void *datap)
if (!booldatum->value || booldatum->value > p->p_bools.nprim)
return -EINVAL;
- fa = p->sym_val_to_name[SYM_BOOLS];
- if (flex_array_put_ptr(fa, booldatum->value - 1, key,
- GFP_KERNEL | __GFP_ZERO))
- BUG();
+ p->sym_val_to_name[SYM_BOOLS][booldatum->value - 1] = key;
p->bool_val_to_struct[booldatum->value - 1] = booldatum;
return 0;
diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
index c1c31e33657ae6d6b9f6247a4c7ac29f6026bc4d..6b576e58872550b991e9ae941999f9a3ffb968b7 100644
--- a/security/selinux/ss/policydb.c
+++ b/security/selinux/ss/policydb.c
@@ -36,7 +36,6 @@
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/audit.h>
-#include <linux/flex_array.h>
#include "security.h"
#include "policydb.h"
@@ -341,17 +340,14 @@ static int common_index(void *key, void *datum, void *datap)
{
struct policydb *p;
struct common_datum *comdatum;
- struct flex_array *fa;
comdatum = datum;
p = datap;
if (!comdatum->value || comdatum->value > p->p_commons.nprim)
return -EINVAL;
- fa = p->sym_val_to_name[SYM_COMMONS];
- if (flex_array_put_ptr(fa, comdatum->value - 1, key,
- GFP_KERNEL | __GFP_ZERO))
- BUG();
+ p->sym_val_to_name[SYM_COMMONS][comdatum->value - 1] = key;
+
return 0;
}
@@ -359,16 +355,13 @@ static int class_index(void *key, void *datum, void *datap)
{
struct policydb *p;
struct class_datum *cladatum;
- struct flex_array *fa;
cladatum = datum;
p = datap;
if (!cladatum->value || cladatum->value > p->p_classes.nprim)
return -EINVAL;
- fa = p->sym_val_to_name[SYM_CLASSES];
- if (flex_array_put_ptr(fa, cladatum->value - 1, key,
- GFP_KERNEL | __GFP_ZERO))
- BUG();
+
+ p->sym_val_to_name[SYM_CLASSES][cladatum->value - 1] = key;
p->class_val_to_struct[cladatum->value - 1] = cladatum;
return 0;
}
@@ -377,7 +370,6 @@ static int role_index(void *key, void *datum, void *datap)
{
struct policydb *p;
struct role_datum *role;
- struct flex_array *fa;
role = datum;
p = datap;
@@ -386,10 +378,7 @@ static int role_index(void *key, void *datum, void *datap)
|| role->bounds > p->p_roles.nprim)
return -EINVAL;
- fa = p->sym_val_to_name[SYM_ROLES];
- if (flex_array_put_ptr(fa, role->value - 1, key,
- GFP_KERNEL | __GFP_ZERO))
- BUG();
+ p->sym_val_to_name[SYM_ROLES][role->value - 1] = key;
p->role_val_to_struct[role->value - 1] = role;
return 0;
}
@@ -398,7 +387,6 @@ static int type_index(void *key, void *datum, void *datap)
{
struct policydb *p;
struct type_datum *typdatum;
- struct flex_array *fa;
typdatum = datum;
p = datap;
@@ -408,15 +396,8 @@ static int type_index(void *key, void *datum, void *datap)
|| typdatum->value > p->p_types.nprim
|| typdatum->bounds > p->p_types.nprim)
return -EINVAL;
- fa = p->sym_val_to_name[SYM_TYPES];
- if (flex_array_put_ptr(fa, typdatum->value - 1, key,
- GFP_KERNEL | __GFP_ZERO))
- BUG();
-
- fa = p->type_val_to_struct_array;
- if (flex_array_put_ptr(fa, typdatum->value - 1, typdatum,
- GFP_KERNEL | __GFP_ZERO))
- BUG();
+ p->sym_val_to_name[SYM_TYPES][typdatum->value - 1] = key;
+ p->type_val_to_struct_array[typdatum->value - 1] = typdatum;
}
return 0;
@@ -426,7 +407,6 @@ static int user_index(void *key, void *datum, void *datap)
{
struct policydb *p;
struct user_datum *usrdatum;
- struct flex_array *fa;
usrdatum = datum;
p = datap;
@@ -435,10 +415,7 @@ static int user_index(void *key, void *datum, void *datap)
|| usrdatum->bounds > p->p_users.nprim)
return -EINVAL;
- fa = p->sym_val_to_name[SYM_USERS];
- if (flex_array_put_ptr(fa, usrdatum->value - 1, key,
- GFP_KERNEL | __GFP_ZERO))
- BUG();
+ p->sym_val_to_name[SYM_USERS][usrdatum->value - 1] = key;
p->user_val_to_struct[usrdatum->value - 1] = usrdatum;
return 0;
}
@@ -447,7 +424,6 @@ static int sens_index(void *key, void *datum, void *datap)
{
struct policydb *p;
struct level_datum *levdatum;
- struct flex_array *fa;
levdatum = datum;
p = datap;
@@ -456,10 +432,8 @@ static int sens_index(void *key, void *datum, void *datap)
if (!levdatum->level->sens ||
levdatum->level->sens > p->p_levels.nprim)
return -EINVAL;
- fa = p->sym_val_to_name[SYM_LEVELS];
- if (flex_array_put_ptr(fa, levdatum->level->sens - 1, key,
- GFP_KERNEL | __GFP_ZERO))
- BUG();
+
+ p->sym_val_to_name[SYM_LEVELS][levdatum->level->sens - 1] = key;
}
return 0;
@@ -469,7 +443,6 @@ static int cat_index(void *key, void *datum, void *datap)
{
struct policydb *p;
struct cat_datum *catdatum;
- struct flex_array *fa;
catdatum = datum;
p = datap;
@@ -477,10 +450,8 @@ static int cat_index(void *key, void *datum, void *datap)
if (!catdatum->isalias) {
if (!catdatum->value || catdatum->value > p->p_cats.nprim)
return -EINVAL;
- fa = p->sym_val_to_name[SYM_CATS];
- if (flex_array_put_ptr(fa, catdatum->value - 1, key,
- GFP_KERNEL | __GFP_ZERO))
- BUG();
+
+ p->sym_val_to_name[SYM_CATS][catdatum->value - 1] = key;
}
return 0;
@@ -568,35 +539,23 @@ static int policydb_index(struct policydb *p)
if (!p->user_val_to_struct)
return -ENOMEM;
- /* Yes, I want the sizeof the pointer, not the structure */
- p->type_val_to_struct_array = flex_array_alloc(sizeof(struct type_datum *),
- p->p_types.nprim,
- GFP_KERNEL | __GFP_ZERO);
+ p->type_val_to_struct_array = kvcalloc(p->p_types.nprim,
+ sizeof(*p->type_val_to_struct_array),
+ GFP_KERNEL);
if (!p->type_val_to_struct_array)
return -ENOMEM;
- rc = flex_array_prealloc(p->type_val_to_struct_array, 0,
- p->p_types.nprim, GFP_KERNEL | __GFP_ZERO);
- if (rc)
- goto out;
-
rc = cond_init_bool_indexes(p);
if (rc)
goto out;
for (i = 0; i < SYM_NUM; i++) {
- p->sym_val_to_name[i] = flex_array_alloc(sizeof(char *),
- p->symtab[i].nprim,
- GFP_KERNEL | __GFP_ZERO);
+ p->sym_val_to_name[i] = kvcalloc(p->symtab[i].nprim,
+ sizeof(char *),
+ GFP_KERNEL);
if (!p->sym_val_to_name[i])
return -ENOMEM;
- rc = flex_array_prealloc(p->sym_val_to_name[i],
- 0, p->symtab[i].nprim,
- GFP_KERNEL | __GFP_ZERO);
- if (rc)
- goto out;
-
rc = hashtab_map(p->symtab[i].table, index_f[i], p);
if (rc)
goto out;
@@ -810,16 +769,13 @@ void policydb_destroy(struct policydb *p)
hashtab_destroy(p->symtab[i].table);
}
- for (i = 0; i < SYM_NUM; i++) {
- if (p->sym_val_to_name[i])
- flex_array_free(p->sym_val_to_name[i]);
- }
+ for (i = 0; i < SYM_NUM; i++)
+ kvfree(p->sym_val_to_name[i]);
kfree(p->class_val_to_struct);
kfree(p->role_val_to_struct);
kfree(p->user_val_to_struct);
- if (p->type_val_to_struct_array)
- flex_array_free(p->type_val_to_struct_array);
+ kvfree(p->type_val_to_struct_array);
avtab_destroy(&p->te_avtab);
@@ -872,17 +828,9 @@ void policydb_destroy(struct policydb *p)
hashtab_map(p->range_tr, range_tr_destroy, NULL);
hashtab_destroy(p->range_tr);
- if (p->type_attr_map_array) {
- for (i = 0; i < p->p_types.nprim; i++) {
- struct ebitmap *e;
-
- e = flex_array_get(p->type_attr_map_array, i);
- if (!e)
- continue;
- ebitmap_destroy(e);
- }
- flex_array_free(p->type_attr_map_array);
- }
+ for (i = 0; i < p->p_types.nprim; i++)
+ ebitmap_destroy(&p->type_attr_map_array[i]);
+ kvfree(p->type_attr_map_array);
ebitmap_destroy(&p->filename_trans_ttypes);
ebitmap_destroy(&p->policycaps);
@@ -1770,8 +1718,7 @@ static int type_bounds_sanity_check(void *key, void *datum, void *datap)
return -EINVAL;
}
- upper = flex_array_get_ptr(p->type_val_to_struct_array,
- upper->bounds - 1);
+ upper = p->type_val_to_struct_array[upper->bounds - 1];
BUG_ON(!upper);
if (upper->attribute) {
@@ -2543,23 +2490,15 @@ int policydb_read(struct policydb *p, void *fp)
if (rc)
goto bad;
- rc = -ENOMEM;
- p->type_attr_map_array = flex_array_alloc(sizeof(struct ebitmap),
- p->p_types.nprim,
- GFP_KERNEL | __GFP_ZERO);
+ p->type_attr_map_array = kvcalloc(p->p_types.nprim,
+ sizeof(*p->type_attr_map_array),
+ GFP_KERNEL);
if (!p->type_attr_map_array)
goto bad;
- /* preallocate so we don't have to worry about the put ever failing */
- rc = flex_array_prealloc(p->type_attr_map_array, 0, p->p_types.nprim,
- GFP_KERNEL | __GFP_ZERO);
- if (rc)
- goto bad;
-
for (i = 0; i < p->p_types.nprim; i++) {
- struct ebitmap *e = flex_array_get(p->type_attr_map_array, i);
+ struct ebitmap *e = &p->type_attr_map_array[i];
- BUG_ON(!e);
ebitmap_init(e);
if (p->policyvers >= POLICYDB_VERSION_AVTAB) {
rc = ebitmap_read(e, fp);
@@ -3554,9 +3493,8 @@ int policydb_write(struct policydb *p, void *fp)
return rc;
for (i = 0; i < p->p_types.nprim; i++) {
- struct ebitmap *e = flex_array_get(p->type_attr_map_array, i);
+ struct ebitmap *e = &p->type_attr_map_array[i];
- BUG_ON(!e);
rc = ebitmap_write(e, fp);
if (rc)
return rc;
diff --git a/security/selinux/ss/policydb.h b/security/selinux/ss/policydb.h
index 215f8f30ac5a5dcfa5126c8357da7cebf9639a1b..27039149ff0ae17610b31a2690a98197449020b0 100644
--- a/security/selinux/ss/policydb.h
+++ b/security/selinux/ss/policydb.h
@@ -24,8 +24,6 @@
#ifndef _SS_POLICYDB_H_
#define _SS_POLICYDB_H_
-#include <linux/flex_array.h>
-
#include "symtab.h"
#include "avtab.h"
#include "sidtab.h"
@@ -251,13 +249,13 @@ struct policydb {
#define p_cats symtab[SYM_CATS]
/* symbol names indexed by (value - 1) */
- struct flex_array *sym_val_to_name[SYM_NUM];
+ char **sym_val_to_name[SYM_NUM];
/* class, role, and user attributes indexed by (value - 1) */
struct class_datum **class_val_to_struct;
struct role_datum **role_val_to_struct;
struct user_datum **user_val_to_struct;
- struct flex_array *type_val_to_struct_array;
+ struct type_datum **type_val_to_struct_array;
/* type enforcement access vectors and transitions */
struct avtab te_avtab;
@@ -294,7 +292,7 @@ struct policydb {
struct hashtab *range_tr;
/* type -> attribute reverse mapping */
- struct flex_array *type_attr_map_array;
+ struct ebitmap *type_attr_map_array;
struct ebitmap policycaps;
@@ -369,9 +367,7 @@ static inline int put_entry(const void *buf, size_t bytes, int num, struct polic
static inline char *sym_name(struct policydb *p, unsigned int sym_num, unsigned int element_nr)
{
- struct flex_array *fa = p->sym_val_to_name[sym_num];
-
- return flex_array_get_ptr(fa, element_nr);
+ return p->sym_val_to_name[sym_num][element_nr];
}
extern u16 string_to_security_class(struct policydb *p, const char *name);
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index 1269e2be3c2d9ff1b03f21376c7354e2cb354b0c..ec62918521b1706ed0216d7eb2c2575e6640970f 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -49,7 +49,6 @@
#include <linux/sched.h>
#include <linux/audit.h>
#include <linux/mutex.h>
-#include <linux/flex_array.h>
#include <linux/vmalloc.h>
#include <net/netlabel.h>
@@ -545,15 +544,13 @@ static void type_attribute_bounds_av(struct policydb *policydb,
struct type_datum *target;
u32 masked = 0;
- source = flex_array_get_ptr(policydb->type_val_to_struct_array,
- scontext->type - 1);
+ source = policydb->type_val_to_struct_array[scontext->type - 1];
BUG_ON(!source);
if (!source->bounds)
return;
- target = flex_array_get_ptr(policydb->type_val_to_struct_array,
- tcontext->type - 1);
+ target = policydb->type_val_to_struct_array[tcontext->type - 1];
BUG_ON(!target);
memset(&lo_avd, 0, sizeof(lo_avd));
@@ -653,11 +650,9 @@ static void context_struct_compute_av(struct policydb *policydb,
*/
avkey.target_class = tclass;
avkey.specified = AVTAB_AV | AVTAB_XPERMS;
- sattr = flex_array_get(policydb->type_attr_map_array,
- scontext->type - 1);
+ sattr = &policydb->type_attr_map_array[scontext->type - 1];
BUG_ON(!sattr);
- tattr = flex_array_get(policydb->type_attr_map_array,
- tcontext->type - 1);
+ tattr = &policydb->type_attr_map_array[tcontext->type - 1];
BUG_ON(!tattr);
ebitmap_for_each_positive_bit(sattr, snode, i) {
ebitmap_for_each_positive_bit(tattr, tnode, j) {
@@ -900,8 +895,7 @@ int security_bounded_transition(struct selinux_state *state,
index = new_context->type;
while (true) {
- type = flex_array_get_ptr(policydb->type_val_to_struct_array,
- index - 1);
+ type = policydb->type_val_to_struct_array[index - 1];
BUG_ON(!type);
/* not bounded anymore */
@@ -1064,11 +1058,9 @@ void security_compute_xperms_decision(struct selinux_state *state,
avkey.target_class = tclass;
avkey.specified = AVTAB_XPERMS;
- sattr = flex_array_get(policydb->type_attr_map_array,
- scontext->type - 1);
+ sattr = &policydb->type_attr_map_array[scontext->type - 1];
BUG_ON(!sattr);
- tattr = flex_array_get(policydb->type_attr_map_array,
- tcontext->type - 1);
+ tattr = &policydb->type_attr_map_array[tcontext->type - 1];
BUG_ON(!tattr);
ebitmap_for_each_positive_bit(sattr, snode, i) {
ebitmap_for_each_positive_bit(tattr, tnode, j) {
diff --git a/tools/include/linux/poison.h b/tools/include/linux/poison.h
index 9fdcd3eaac3b3b92ead5246b324aa42d68c6dbdb..d2972576910778a2a73898c456a83c6ede2cd577 100644
--- a/tools/include/linux/poison.h
+++ b/tools/include/linux/poison.h
@@ -87,9 +87,6 @@
#define MUTEX_DEBUG_INIT 0x11
#define MUTEX_DEBUG_FREE 0x22
-/********** lib/flex_array.c **********/
-#define FLEX_ARRAY_FREE 0x6c /* for use-after-free poisoning */
-
/********** security/ **********/
#define KEY_DESTROY 0xbd