From 347ce434d57da80fd5809c0c836f206a50999c26 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Fri, 30 Jun 2006 01:55:35 -0700 Subject: [PATCH] zoned vm counters: conversion of nr_pagecache to per zone counter Currently a single atomic variable is used to establish the size of the page cache in the whole machine. The zoned VM counters have the same method of implementation as the nr_pagecache code but also allow the determination of the pagecache size per zone. Remove the special implementation for nr_pagecache and make it a zoned counter named NR_FILE_PAGES. Updates of the page cache counters are always performed with interrupts off. We can therefore use the __ variant here. Signed-off-by: Christoph Lameter Cc: Trond Myklebust Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/vmstat.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) (limited to 'mm/vmstat.c') diff --git a/mm/vmstat.c b/mm/vmstat.c index 4800091c129a..f16b33eb6d5c 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -20,12 +20,6 @@ */ DEFINE_PER_CPU(struct page_state, page_states) = {0}; -atomic_t nr_pagecache = ATOMIC_INIT(0); -EXPORT_SYMBOL(nr_pagecache); -#ifdef CONFIG_SMP -DEFINE_PER_CPU(long, nr_pagecache_local) = 0; -#endif - static void __get_page_state(struct page_state *ret, int nr, cpumask_t *cpumask) { unsigned cpu; @@ -402,6 +396,7 @@ struct seq_operations fragmentation_op = { static char *vmstat_text[] = { /* Zoned VM counters */ "nr_mapped", + "nr_file_pages", /* Page state */ "nr_dirty", -- cgit v1.2.3