| commit | 6d2661ede5f20f968422e790af3334908c3bc857 | |
| author | David Rientjes <rientjes@google.com> | |
| Thu, 28 May 2009 21:34:19 +0000 (28 14:34 -0700) | ||
| committer | Linus Torvalds <torvalds@linux-foundation.org> | |
| Fri, 29 May 2009 15:40:01 +0000 (29 08:40 -0700) | ||
| tree | 2e002d883eee9be5c52d844a7b0c3354338d8995 | treesnapshot (tar.gz zip) |
| parent | 681a1b4032d72f4ad6d4beed751bc65574572746 | commitdiff |
oom: fix possible oom_dump_tasks NULL pointer
When /proc/sys/vm/oom_dump_tasks is enabled, it is possible to get a NULL
pointer for tasks that have detached mm's since task_lock() is not held
during the tasklist scan. Add the task_lock().
Acked-by: Nick Piggin <npiggin@suse.de>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When /proc/sys/vm/oom_dump_tasks is enabled, it is possible to get a NULL
pointer for tasks that have detached mm's since task_lock() is not held
during the tasklist scan. Add the task_lock().
Acked-by: Nick Piggin <npiggin@suse.de>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| mm/oom_kill.c | diffblobblamehistory |