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authorChristoph Lameter <clameter@engr.sgi.com>2006-03-24 03:15:59 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-24 07:33:22 -0800
commit0b1303fcf23678ee1785841fb0c770a35cd0833c (patch)
tree78b90c2766f8468b39363bd4525ebaa9b192aa8f
parent95c3832272fc77ea3e31f6382f82ba17be985cc7 (diff)
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[PATCH] cpusets: only wakeup kswapd for zones in the current cpuset
If we get under some memory pressure in a cpuset (we only scan zones that are in the cpuset for memory) then kswapd is woken up for all zones. This patch only wakes up kswapd in zones that are part of the current cpuset. Signed-off-by: Christoph Lameter <clameter@sgi.com> Acked-by: Paul Jackson <pj@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--mm/page_alloc.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index b7f14a4..a5c3f8b 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -943,7 +943,8 @@ restart:
goto got_pg;
do {
- wakeup_kswapd(*z, order);
+ if (cpuset_zone_allowed(*z, gfp_mask))
+ wakeup_kswapd(*z, order);
} while (*(++z));
/*