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authorJoshua N Pritikin <jpritikin@pobox.com>2007-05-07 01:49:07 +0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-07 23:12:51 +0400
commit9a82782f8f58219d0c6dc5f0211ce301adf6c6f4 (patch)
tree0caef745a8ef3f96b3e2444d00a5180669e5c469 /mm/oom_kill.c
parent3d67f2d7c0fb28b0eb6a6aa100b190526a971ad9 (diff)
downloadlinux-9a82782f8f58219d0c6dc5f0211ce301adf6c6f4.tar.xz
allow oom_adj of saintly processes
If the badness of a process is zero then oom_adj>0 has no effect. This patch makes sure that the oom_adj shift actually increases badness points appropriately. Signed-off-by: Joshua N. Pritikin <jpritikin@pobox.com> Cc: Andrea Arcangeli <andrea@novell.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/oom_kill.c')
-rw-r--r--mm/oom_kill.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 3791edfffeeb..a35e7a8ebd7e 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -147,9 +147,11 @@ unsigned long badness(struct task_struct *p, unsigned long uptime)
* Adjust the score by oomkilladj.
*/
if (p->oomkilladj) {
- if (p->oomkilladj > 0)
+ if (p->oomkilladj > 0) {
+ if (!points)
+ points = 1;
points <<= p->oomkilladj;
- else
+ } else
points >>= -(p->oomkilladj);
}