Commit df849a15 authored by Christoph Lameter's avatar Christoph Lameter Committed by Linus Torvalds

[PATCH] zoned vm counters: conversion of nr_pagetables to per zone counter

Conversion of nr_page_table_pages to a per zone counter

[akpm@osdl.org: bugfix]
Signed-off-by: default avatarChristoph Lameter <clameter@sgi.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 9a865ffa
......@@ -227,7 +227,7 @@ void free_pgd_slow(pgd_t *pgd)
pte = pmd_page(*pmd);
pmd_clear(pmd);
dec_page_state(nr_page_table_pages);
dec_zone_page_state(virt_to_page((unsigned long *)pgd), NR_PAGETABLE);
pte_lock_deinit(pte);
pte_free(pte);
pmd_free(pmd);
......
......@@ -63,7 +63,8 @@ void show_mem(void)
printk(KERN_INFO "%lu pages writeback\n", ps.nr_writeback);
printk(KERN_INFO "%lu pages mapped\n", global_page_state(NR_FILE_MAPPED));
printk(KERN_INFO "%lu pages slab\n", global_page_state(NR_SLAB));
printk(KERN_INFO "%lu pages pagetables\n", ps.nr_page_table_pages);
printk(KERN_INFO "%lu pages pagetables\n",
global_page_state(NR_PAGETABLE));
}
/*
......
......@@ -152,7 +152,7 @@ void destroy_context_skas(struct mm_struct *mm)
free_page(mmu->id.stack);
pte_lock_deinit(virt_to_page(mmu->last_page_table));
pte_free_kernel((pte_t *) mmu->last_page_table);
dec_page_state(nr_page_table_pages);
dec_zone_page_state(virt_to_page(mmu->last_page_table), NR_PAGETABLE);
#ifdef CONFIG_3_LEVEL_PGTABLES
pmd_free((pmd_t *) mmu->last_pmd);
#endif
......
......@@ -70,6 +70,7 @@ static ssize_t node_read_meminfo(struct sys_device * dev, char * buf)
"Node %d FilePages: %8lu kB\n"
"Node %d Mapped: %8lu kB\n"
"Node %d AnonPages: %8lu kB\n"
"Node %d PageTables: %8lu kB\n"
"Node %d Slab: %8lu kB\n",
nid, K(i.totalram),
nid, K(i.freeram),
......@@ -85,6 +86,7 @@ static ssize_t node_read_meminfo(struct sys_device * dev, char * buf)
nid, K(node_page_state(nid, NR_FILE_PAGES)),
nid, K(node_page_state(nid, NR_FILE_MAPPED)),
nid, K(node_page_state(nid, NR_ANON_PAGES)),
nid, K(node_page_state(nid, NR_PAGETABLE)),
nid, K(node_page_state(nid, NR_SLAB)));
n += hugetlb_report_node_meminfo(nid, buf + n);
return n;
......
......@@ -171,9 +171,9 @@ static int meminfo_read_proc(char *page, char **start, off_t off,
"AnonPages: %8lu kB\n"
"Mapped: %8lu kB\n"
"Slab: %8lu kB\n"
"PageTables: %8lu kB\n"
"CommitLimit: %8lu kB\n"
"Committed_AS: %8lu kB\n"
"PageTables: %8lu kB\n"
"VmallocTotal: %8lu kB\n"
"VmallocUsed: %8lu kB\n"
"VmallocChunk: %8lu kB\n",
......@@ -195,9 +195,9 @@ static int meminfo_read_proc(char *page, char **start, off_t off,
K(global_page_state(NR_ANON_PAGES)),
K(global_page_state(NR_FILE_MAPPED)),
K(global_page_state(NR_SLAB)),
K(global_page_state(NR_PAGETABLE)),
K(allowed),
K(committed),
K(ps.nr_page_table_pages),
(unsigned long)VMALLOC_TOTAL >> 10,
vmi.used >> 10,
vmi.largest_chunk >> 10
......
......@@ -52,6 +52,7 @@ enum zone_stat_item {
only modified from process context */
NR_FILE_PAGES,
NR_SLAB, /* Pages used by slab allocator */
NR_PAGETABLE, /* used for pagetables */
NR_VM_ZONE_STAT_ITEMS };
struct per_cpu_pages {
......
......@@ -25,8 +25,7 @@ struct page_state {
unsigned long nr_dirty; /* Dirty writeable pages */
unsigned long nr_writeback; /* Pages under writeback */
unsigned long nr_unstable; /* NFS unstable pages */
unsigned long nr_page_table_pages;/* Pages used for pagetables */
#define GET_PAGE_STATE_LAST nr_page_table_pages
#define GET_PAGE_STATE_LAST nr_unstable
/*
* The below are zeroed by get_page_state(). Use get_full_page_state()
......
......@@ -126,7 +126,7 @@ static void free_pte_range(struct mmu_gather *tlb, pmd_t *pmd)
pmd_clear(pmd);
pte_lock_deinit(page);
pte_free_tlb(tlb, page);
dec_page_state(nr_page_table_pages);
dec_zone_page_state(page, NR_PAGETABLE);
tlb->mm->nr_ptes--;
}
......@@ -311,7 +311,7 @@ int __pte_alloc(struct mm_struct *mm, pmd_t *pmd, unsigned long address)
pte_free(new);
} else {
mm->nr_ptes++;
inc_page_state(nr_page_table_pages);
inc_zone_page_state(new, NR_PAGETABLE);
pmd_populate(mm, pmd, new);
}
spin_unlock(&mm->page_table_lock);
......
......@@ -1320,7 +1320,7 @@ void show_free_areas(void)
nr_free_pages(),
global_page_state(NR_SLAB),
global_page_state(NR_FILE_MAPPED),
ps.nr_page_table_pages);
global_page_state(NR_PAGETABLE));
for_each_zone(zone) {
int i;
......
......@@ -399,12 +399,12 @@ static char *vmstat_text[] = {
"nr_mapped",
"nr_file_pages",
"nr_slab",
"nr_page_table_pages",
/* Page state */
"nr_dirty",
"nr_writeback",
"nr_unstable",
"nr_page_table_pages",
"pgpgin",
"pgpgout",
......
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