From df849a1529c106f7460e51479ca78fe07b07dc8c Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Fri, 30 Jun 2006 01:55:38 -0700 Subject: [PATCH] [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: Christoph Lameter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/arm/mm/mm-armv.c | 2 +- arch/i386/mm/pgtable.c | 3 ++- arch/um/kernel/skas/mmu.c | 2 +- drivers/base/node.c | 2 ++ fs/proc/proc_misc.c | 4 ++-- include/linux/mmzone.h | 1 + include/linux/vmstat.h | 3 +-- mm/memory.c | 4 ++-- mm/page_alloc.c | 2 +- mm/vmstat.c | 2 +- 10 files changed, 14 insertions(+), 11 deletions(-) diff --git a/arch/arm/mm/mm-armv.c b/arch/arm/mm/mm-armv.c index 95273de4f772..931be1798122 100644 --- a/arch/arm/mm/mm-armv.c +++ b/arch/arm/mm/mm-armv.c @@ -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); diff --git a/arch/i386/mm/pgtable.c b/arch/i386/mm/pgtable.c index 73ac3599a0ea..0bb1e5c13442 100644 --- a/arch/i386/mm/pgtable.c +++ b/arch/i386/mm/pgtable.c @@ -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)); } /* diff --git a/arch/um/kernel/skas/mmu.c b/arch/um/kernel/skas/mmu.c index c5c9885a8297..624ca238d1fd 100644 --- a/arch/um/kernel/skas/mmu.c +++ b/arch/um/kernel/skas/mmu.c @@ -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 diff --git a/drivers/base/node.c b/drivers/base/node.c index db116a8791c8..c22fb67ec50c 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -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; diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c index 16aaf7187bb3..0eae68f84210 100644 --- a/fs/proc/proc_misc.c +++ b/fs/proc/proc_misc.c @@ -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 diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 67e03fc8533e..15adb435f240 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -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 { diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index 4b97381a2937..56220441d7c9 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -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() diff --git a/mm/memory.c b/mm/memory.c index 247b5c312b9b..1a78791590fa 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -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); diff --git a/mm/page_alloc.c b/mm/page_alloc.c index a38a11cfb483..ed3f2a7b4071 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -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; diff --git a/mm/vmstat.c b/mm/vmstat.c index dc9e69209223..292a35fe56c9 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -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",