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

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- Allows reclaim to access counter without looping over processor counts.

- Allows accurate statistics on how many pages are used in a zone by
  the slab. This may become useful to balance slab allocations over
  various zones.

[akpm@osdl.org: bugfix]
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Christoph Lameter 2006-06-30 01:55:38 -07:00 • committed by Linus Torvalds
parent 34aa1330f9
commit 9a865ffa34
9 changed files with 10 additions and 12 deletions
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3
include/linux/vmstat.h
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@ -26,8 +26,7 @@ struct page_state {
unsigned long nr_writeback; /* Pages under writeback */
unsigned long nr_unstable; /* NFS unstable pages */
unsigned long nr_page_table_pages;/* Pages used for pagetables */
unsigned long nr_slab; /* In slab */
#define GET_PAGE_STATE_LAST nr_slab
#define GET_PAGE_STATE_LAST nr_page_table_pages
/*
* The below are zeroed by get_page_state(). Use get_full_page_state()