Commit 1c6fe946 authored by Magnus Damm's avatar Magnus Damm Committed by Linus Torvalds

[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: default avatarMagnus Damm <magnus@valinux.co.jp>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 8712e553
...@@ -1750,6 +1750,8 @@ inline void setup_pageset(struct per_cpu_pageset *p, unsigned long batch) ...@@ -1750,6 +1750,8 @@ inline void setup_pageset(struct per_cpu_pageset *p, unsigned long batch)
{ {
struct per_cpu_pages *pcp; struct per_cpu_pages *pcp;
memset(p, 0, sizeof(*p));
pcp = &p->pcp[0]; /* hot */ pcp = &p->pcp[0]; /* hot */
pcp->count = 0; pcp->count = 0;
pcp->low = 2 * batch; pcp->low = 2 * batch;
......
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