1. 25 Oct, 2016 2 commits
    • Lorenzo Stoakes's avatar
      mm: unexport __get_user_pages() · 0d731759
      Lorenzo Stoakes authored
      
      
      This patch unexports the low-level __get_user_pages() function.
      
      Recent refactoring of the get_user_pages* functions allow flags to be
      passed through get_user_pages() which eliminates the need for access to
      this function from its one user, kvm.
      
      We can see that the two calls to get_user_pages() which replace
      __get_user_pages() in kvm_main.c are equivalent by examining their call
      stacks:
      
        get_user_page_nowait():
          get_user_pages(start, 1, flags, page, NULL)
          __get_user_pages_locked(current, current->mm, start, 1, page, NULL, NULL,
      			    false, flags | FOLL_TOUCH)
          __get_user_pages(current, current->mm, start, 1,
      		     flags | FOLL_TOUCH | FOLL_GET, page, NULL, NULL)
      
        check_user_page_hwpoison():
          get_user_pages(addr, 1, flags, NULL, NULL)
          __get_user_pages_locked(current, current->mm, addr, 1, NULL, NULL, NULL,
      			    false, flags | FOLL_TOUCH)
          __get_user_pages(current, current->mm, addr, 1, flags | FOLL_TOUCH, NULL,
      		     NULL, NULL)
      Signed-off-by: default avatarLorenzo Stoakes <lstoakes@gmail.com>
      Acked-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
      Acked-by: default avatarMichal Hocko <mhocko@suse.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      0d731759
    • Linus Torvalds's avatar
      proc: don't use FOLL_FORCE for reading cmdline and environment · 272ddc8b
      Linus Torvalds authored
      
      
      Now that Lorenzo cleaned things up and made the FOLL_FORCE users
      explicit, it becomes obvious how some of them don't really need
      FOLL_FORCE at all.
      
      So remove FOLL_FORCE from the proc code that reads the command line and
      arguments from user space.
      
      The mem_rw() function actually does want FOLL_FORCE, because gdd (and
      possibly many other debuggers) use it as a much more convenient version
      of PTRACE_PEEKDATA, but we should consider making the FOLL_FORCE part
      conditional on actually being a ptracer.  This does not actually do
      that, just moves adds a comment to that effect and moves the gup_flags
      settings next to each other.
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      272ddc8b
  2. 24 Oct, 2016 1 commit
  3. 23 Oct, 2016 5 commits
    • Linus Torvalds's avatar
      Merge tag 'upstream-4.9-rc2' of git://git.infradead.org/linux-ubifs · 5ff93abc
      Linus Torvalds authored
      Pull UBI[FS] fixes from Richard Weinberger:
       "This contains fixes for issues in both UBI and UBIFS:
      
         - Fallout from the merge window, refactoring UBI code introduced some
           issues.
      
         - Fixes for an UBIFS readdir bug which can cause getdents() to busy
           loop for ever and a bug in the UBIFS xattr code"
      
      * tag 'upstream-4.9-rc2' of git://git.infradead.org/linux-ubifs:
        ubifs: Abort readdir upon error
        UBI: Fix crash in try_recover_peb()
        ubi: fix swapped arguments to call to ubi_alloc_aeb
        ubifs: Fix xattr_names length in exit paths
        ubifs: Rename ubifs_rename2
      5ff93abc
    • Linus Torvalds's avatar
      Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 · c761923c
      Linus Torvalds authored
      Pull ext4 fixes from Ted Ts'o:
       "A few bug fixes and add some missing KERN_CONT annotations"
      
      * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
        ext4: add missing KERN_CONT to a few more debugging uses
        fscrypto: lock inode while setting encryption policy
        ext4: correct endianness conversion in __xattr_check_inode()
        fscrypto: make XTS tweak initialization endian-independent
        ext4: do not advertise encryption support when disabled
        jbd2: fix incorrect unlock on j_list_lock
        ext4: super.c: Update logging style using KERN_CONT
      c761923c
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending · a55da8a0
      Linus Torvalds authored
      Pull SCSI target fixes from Nicholas Bellinger:
       "Here are the outstanding target-pending fixes for v4.9-rc2.
      
        This includes:
      
         - Fix v4.1.y+ reference leak regression with concurrent TMR
           ABORT_TASK + session shutdown. (Vaibhav Tandon)
      
         - Enable tcm_fc w/ SCF_USE_CPUID to avoid host exchange timeouts
           (Hannes)
      
         - target/user error sense handling fixes. (Andy + MNC + HCH)
      
         - Fix iscsi-target NOP_OUT error path iscsi_cmd descriptor leak
           (Varun)
      
         - Two EXTENDED_COPY SCSI status fixes for ESX VAAI (Dinesh Israni +
           Nixon Vincent)
      
         - Revert a v4.8 residual overflow change, that breaks sg_inq with
           small allocation lengths.
      
        There are a number of folks stress testing the v4.1.y regression fix
        in their environments, and more folks doing iser-target I/O stress
        testing atop recent v4.x.y code.
      
        There is also one v4.2.y+ RCU conversion regression related to
        explicit NodeACL configfs changes, that is still being tracked down"
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
        target/tcm_fc: use CPU affinity for responses
        target/tcm_fc: Update debugging statements to match libfc usage
        target/tcm_fc: return detailed error in ft_sess_create()
        target/tcm_fc: print command pointer in debug message
        target: fix potential race window in target_sess_cmd_list_waiting()
        Revert "target: Fix residual overflow handling in target_complete_cmd_with_length"
        target: Don't override EXTENDED_COPY xcopy_pt_cmd SCSI status code
        target: Make EXTENDED_COPY 0xe4 failure return COPY TARGET DEVICE NOT REACHABLE
        target: Re-add missing SCF_ACK_KREF assignment in v4.1.y
        iscsi-target: fix iscsi cmd leak
        iscsi-target: fix spelling mistake "Unsolicitied" -> "Unsolicited"
        target/user: Fix comments to not refer to data ring
        target/user: Return an error if cmd data size is too large
        target/user: Use sense_reason_t in tcmu_queue_cmd_ring
      a55da8a0
    • Linus Torvalds's avatar
      Merge tag 'hwmon-for-linus-v4.9-rc2' of... · e6995f22
      Linus Torvalds authored
      Merge tag 'hwmon-for-linus-v4.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
      
      Pull hwmon fixes from Guenter Roeck:
       "Couple of hwmon fixes:
      
        Fix a potential ERR_PTR dereference in max31790 driver, and handle
        temperature readings below 0 in adm9240 driver"
      
      * tag 'hwmon-for-linus-v4.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
        hwmon: (max31790) potential ERR_PTR dereference
        hwmon: (adm9240) handle temperature readings below 0
      e6995f22
    • Linus Torvalds's avatar
      Merge tag 'for-linus-4.9-2' of git://git.code.sf.net/p/openipmi/linux-ipmi · 5766e9d2
      Linus Torvalds authored
      Pull IPMI updates from Corey Minyard:
       "A small bug fix and a new driver for acting as an IPMI device.
      
        I was on vacation during the merge window (a long vacation) but this
        is a bug fix that should go in and a new driver that shouldn't hurt
        anything.
      
        This has been in linux-next for a month or so"
      
      * tag 'for-linus-4.9-2' of git://git.code.sf.net/p/openipmi/linux-ipmi:
        ipmi: fix crash on reading version from proc after unregisted bmc
        ipmi/bt-bmc: remove redundant return value check of platform_get_resource()
        ipmi/bt-bmc: add a dependency on ARCH_ASPEED
        ipmi: Fix ioremap error handling in bt-bmc
        ipmi: add an Aspeed BT IPMI BMC driver
      5766e9d2
  4. 22 Oct, 2016 9 commits
    • Linus Torvalds's avatar
      Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 0c2b6dc4
      Linus Torvalds authored
      Pull timer updates from Thomas Gleixner:
       "This updates contains:
      
         - A revert which addresses a boot failure on ARM Sun5i platforms
      
         - A new clocksource driver, which has been delayed beyond rc1 due to
           an interrupt driver issue which was unearthed by this driver. The
           debugging of that issue and the discussion about the proper
           solution made this driver miss the merge window. There is no point
           in delaying it for a full cycle as it completes the basic mainline
           support for the new JCore platform and does not create any risk
           outside of that platform"
      
      * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        Revert "clocksource/drivers/timer_sun5i: Replace code by clocksource_mmio_init"
        clocksource: Add J-Core timer/clocksource driver
        of: Add J-Core timer bindings
      0c2b6dc4
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 3e9679a3
      Linus Torvalds authored
      Pull x86 fixes from Ingo Molnar:
       "Three fixes, a hw-enablement and a cross-arch fix/enablement change:
      
         - SGI/UV fix for older platforms
      
         - x32 signal handling fix
      
         - older x86 platform bootup APIC fix
      
         - AVX512-4VNNIW (Neural Network Instructions) and AVX512-4FMAPS
           (Multiply Accumulation Single precision instructions) enablement.
      
         - move thread_info back into x86 specific code, to make life easier
           for other architectures trying to make use of
           CONFIG_THREAD_INFO_IN_TASK_STRUCT=y"
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/boot/smp: Don't try to poke disabled/non-existent APIC
        sched/core, x86: Make struct thread_info arch specific again
        x86/signal: Remove bogus user_64bit_mode() check from sigaction_compat_abi()
        x86/platform/UV: Fix support for EFI_OLD_MEMMAP after BIOS callback updates
        x86/cpufeature: Add AVX512_4VNNIW and AVX512_4FMAPS features
        x86/vmware: Skip timer_irq_works() check on VMware
      3e9679a3
    • Linus Torvalds's avatar
      Merge branch 'mm-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 86c5bf71
      Linus Torvalds authored
      Pull vmap stack fixes from Ingo Molnar:
       "This is fallout from CONFIG_HAVE_ARCH_VMAP_STACK=y on x86: stack
        accesses that used to be just somewhat questionable are now totally
        buggy.
      
        These changes try to do it without breaking the ABI: the fields are
        left there, they are just reporting zero, or reporting narrower
        information (the maps file change)"
      
      * 'mm-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        mm: Change vm_is_stack_for_task() to vm_is_stack_for_current()
        fs/proc: Stop trying to report thread stacks
        fs/proc: Stop reporting eip and esp in /proc/PID/stat
        mm/numa: Remove duplicated include from mprotect.c
      86c5bf71
    • Linus Torvalds's avatar
      Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · bfb7bfef
      Linus Torvalds authored
      Pull irq fixes from Ingo Molnar:
       "Mostly irqchip driver fixes, plus a symbol export"
      
      * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        kernel/irq: Export irq_set_parent()
        irqchip/gic: Add missing \n to CPU IF adjustment message
        irqchip/jcore: Don't show Kconfig menu item for driver
        irqchip/eznps: Drop pointless static qualifier in nps400_of_init()
        irqchip/gic-v3-its: Fix entry size mask for GITS_BASER
        irqchip/gic-v3-its: Fix 64bit GIC{R,ITS}_TYPER accesses
      bfb7bfef
    • Linus Torvalds's avatar
      Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 90e01058
      Linus Torvalds authored
      Pull EFI fixes from Ingo Molnar:
       "Add Ard Biesheuvel as EFI co-maintainer, plus fix an ARM build bug
        with older toolchains"
      
      * 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        efi/arm: Fix absolute relocation detection for older toolchains
        MAINTAINERS: Add myself as EFI maintainer
      90e01058
    • Ville Syrjälä's avatar
      x86/boot/smp: Don't try to poke disabled/non-existent APIC · ff856051
      Ville Syrjälä authored
      
      
      Apparently trying to poke a disabled or non-existent APIC
      leads to a box that doesn't even boot. Let's not do that.
      
      No real clue if this is the right fix, but at least my
      P3 machine boots again.
      Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Borislav Petkov <bp@suse.de>
      Cc: Brian Gerst <brgerst@gmail.com>
      Cc: Denys Vlasenko <dvlasenk@redhat.com>
      Cc: Eric Biederman <ebiederm@xmission.com>
      Cc: H. Peter Anvin <hpa@zytor.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Josh Poimboeuf <jpoimboe@redhat.com>
      Cc: Juergen Gross <jgross@suse.com>
      Cc: Len Brown <len.brown@intel.com>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Prarit Bhargava <prarit@redhat.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: dyoung@redhat.com
      Cc: kexec@lists.infradead.org
      Cc: stable@vger.kernel.org
      Fixes: 2a51fe08 ("arch/x86: Handle non enumerated CPU after physical hotplug")
      Link: http://lkml.kernel.org/r/1477102684-5092-1-git-send-email-ville.syrjala@linux.intel.com
      
      Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
      ff856051
    • Linus Torvalds's avatar
      Merge tag 'powerpc-4.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · dcd4693c
      Linus Torvalds authored
      Pull powerpc fixes from Michael Ellerman:
       "Fixes marked for stable:
         - Prevent unlikely crash in copro_calculate_slb() (Frederic Barrat)
         - cxl: Prevent adapter reset if an active context exists (Vaibhav Jain)
      
        Fixes for code merged this cycle:
         - Fix boot on systems with uncompressed kernel image (Heiner Kallweit)
         - Drop dump_numa_memory_topology() (Michael Ellerman)
         - Fix numa topology console print (Aneesh Kumar K.V)
         - Ignore the pkey system calls for now (Stephen Rothwell)"
      
      * tag 'powerpc-4.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        powerpc: Ignore the pkey system calls for now
        powerpc: Fix numa topology console print
        powerpc/mm: Drop dump_numa_memory_topology()
        cxl: Prevent adapter reset if an active context exists
        powerpc/boot: Fix boot on systems with uncompressed kernel image
        powerpc/mm: Prevent unlikely crash in copro_calculate_slb()
      dcd4693c
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · a23b27ae
      Linus Torvalds authored
      Pull KVM fixes from Radim Krčmář:
       "ARM:
         - avoid livelock when walking guest page tables
         - fix HYP mode static keys without CC_HAVE_ASM_GOTO
      
        MIPS:
         - fix a build error without TRACEPOINTS_ENABLED
      
        s390:
         - reject a malformed userspace configuration
      
        x86:
         - suppress a warning without CONFIG_CPU_FREQ
         - initialize whole irq_eoi array"
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
        arm/arm64: KVM: Map the BSS at HYP
        arm64: KVM: Take S1 walks into account when determining S2 write faults
        KVM: s390: reject invalid modes for runtime instrumentation
        kvm: x86: memset whole irq_eoi
        kvm/x86: Fix unused variable warning in kvm_timer_init()
        KVM: MIPS: Add missing uaccess.h include
      a23b27ae
    • Linus Torvalds's avatar
      Merge tag 'nfs-for-4.9-2' of git://git.linux-nfs.org/projects/anna/linux-nfs · 02593ac6
      Linus Torvalds authored
      Pull NFS client bugfixes from Anna Schumaker:
       "Just two bugfixes this time:
      
        Stable bugfix:
         - Fix last_write_offset incorrectly set to page boundary
      
        Other bugfix:
         - Fix missing-braces warning"
      
      * tag 'nfs-for-4.9-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
        nfs4: fix missing-braces warning
        pnfs/blocklayout: fix last_write_offset incorrectly set to page boundary
      02593ac6
  5. 21 Oct, 2016 21 commits
  6. 20 Oct, 2016 2 commits