Commit 1c6fe946 authored Oct 26, 2005 by Magnus Damm Committed by Linus Torvalds Oct 26, 2005

[PATCH] NUMA: broken per cpu pageset counters



The NUMA counters in struct per_cpu_pageset (linux/mmzone.h) are never
cleared today.  This works ok for CPU 0 on NUMA machines because
boot_pageset[] is already zero, but for other CPU:s this results in
uninitialized counters.

Signed-off-by: Magnus Damm <magnus@valinux.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent 8712e553

mm/page_alloc.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1750,6 +1750,8 @@ inline void setup_pageset(struct per_cpu_pageset *p, unsigned long batch)
		{
		struct per_cpu_pages *pcp;

		memset(p, 0, sizeof(*p));

		pcp = &p->pcp[0]; /* hot */
		pcp->count = 0;
		pcp->low = 2 * batch;