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authorNick Piggin <npiggin@suse.de>2006-09-26 02:31:29 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-26 11:48:48 -0400
commit50ec3bbffbe8a96347c54832d48110a5bc9e9ff8 (patch)
tree3941902b1c68525472ea3a502e76faa7fe675cd1 /kernel/compat.c
parent7887a3da753e1ba8244556cc9a2b38c815bfe256 (diff)
[PATCH] oom: handle current exiting
If current *is* exiting, it should actually be allowed to access reserved memory rather than OOM kill something else. Can't do this via a straight check in page_alloc.c because that would allow multiple tasks to use up reserves. Instead cause current to OOM-kill itself which will mark it as TIF_MEMDIE. The current procedure of simply aborting the OOM-kill if a task is exiting can lead to OOM deadlocks. In the case of killing a PF_EXITING task, don't make a lot of noise about it. This becomes more important in future patches, where we can "kill" OOM_DISABLE tasks. Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/compat.c')
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