Subject: zoned vm counters: conversion of nr_pagetable to per zone counter From: Christoph Lameter Conversion of nr_page_table_pages to a per zone counter Signed-off-by: Christoph Lameter Signed-off-by: Andrew Morton Index: linux-2.6.17-mm1/arch/i386/mm/pgtable.c =================================================================== --- linux-2.6.17-mm1.orig/arch/i386/mm/pgtable.c 2006-06-22 08:23:00.263168234 -0700 +++ linux-2.6.17-mm1/arch/i386/mm/pgtable.c 2006-06-22 08:37:08.449894359 -0700 @@ -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)); } /* Index: linux-2.6.17-mm1/fs/proc/proc_misc.c =================================================================== --- linux-2.6.17-mm1.orig/fs/proc/proc_misc.c 2006-06-22 08:23:00.265121238 -0700 +++ linux-2.6.17-mm1/fs/proc/proc_misc.c 2006-06-22 08:37:08.450870861 -0700 @@ -171,9 +171,9 @@ static int meminfo_read_proc(char *page, "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, 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 Index: linux-2.6.17-mm1/include/linux/mmzone.h =================================================================== --- linux-2.6.17-mm1.orig/include/linux/mmzone.h 2006-06-22 08:23:00.266097740 -0700 +++ linux-2.6.17-mm1/include/linux/mmzone.h 2006-06-22 08:37:08.451847363 -0700 @@ -53,6 +53,7 @@ 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 { Index: linux-2.6.17-mm1/mm/memory.c =================================================================== --- linux-2.6.17-mm1.orig/mm/memory.c 2006-06-17 18:49:35.000000000 -0700 +++ linux-2.6.17-mm1/mm/memory.c 2006-06-22 08:37:08.452823865 -0700 @@ -126,7 +126,7 @@ static void free_pte_range(struct mmu_ga 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, pm 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); Index: linux-2.6.17-mm1/mm/page_alloc.c =================================================================== --- linux-2.6.17-mm1.orig/mm/page_alloc.c 2006-06-22 08:23:00.267074242 -0700 +++ linux-2.6.17-mm1/mm/page_alloc.c 2006-06-22 08:37:08.454776869 -0700 @@ -1315,7 +1315,7 @@ 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; Index: linux-2.6.17-mm1/drivers/base/node.c =================================================================== --- linux-2.6.17-mm1.orig/drivers/base/node.c 2006-06-22 08:23:00.264144736 -0700 +++ linux-2.6.17-mm1/drivers/base/node.c 2006-06-22 08:37:08.455753371 -0700 @@ -69,6 +69,7 @@ static ssize_t node_read_meminfo(struct "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), @@ -84,6 +85,7 @@ static ssize_t node_read_meminfo(struct 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; Index: linux-2.6.17-mm1/arch/um/kernel/skas/mmu.c =================================================================== --- linux-2.6.17-mm1.orig/arch/um/kernel/skas/mmu.c 2006-06-17 18:49:35.000000000 -0700 +++ linux-2.6.17-mm1/arch/um/kernel/skas/mmu.c 2006-06-22 08:37:08.456729873 -0700 @@ -152,7 +152,7 @@ void destroy_context_skas(struct mm_stru 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 Index: linux-2.6.17-mm1/arch/arm/mm/mm-armv.c =================================================================== --- linux-2.6.17-mm1.orig/arch/arm/mm/mm-armv.c 2006-06-17 18:49:35.000000000 -0700 +++ linux-2.6.17-mm1/arch/arm/mm/mm-armv.c 2006-06-22 08:37:08.456729873 -0700 @@ -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); Index: linux-2.6.17-mm1/mm/vmstat.c =================================================================== --- linux-2.6.17-mm1.orig/mm/vmstat.c 2006-06-22 08:23:00.270003748 -0700 +++ linux-2.6.17-mm1/mm/vmstat.c 2006-06-22 08:37:08.457706375 -0700 @@ -461,12 +461,12 @@ 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", Index: linux-2.6.17-mm1/include/linux/vmstat.h =================================================================== --- linux-2.6.17-mm1.orig/include/linux/vmstat.h 2006-06-22 08:23:17.482805961 -0700 +++ linux-2.6.17-mm1/include/linux/vmstat.h 2006-06-22 08:37:27.048350906 -0700 @@ -24,8 +24,7 @@ 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()