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authorPaul Jackson <pj@sgi.com>2005-09-07 02:18:13 +0400
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-08 03:57:40 +0400
commitef08e3b4981aebf2ba9bd7025ef7210e8eec07ce (patch)
tree3b5386e011c87dde384115c8eb0d6961c2536025 /CREDITS
parent9bf2229f8817677127a60c177aefce1badd22d7b (diff)
downloadlinux-ef08e3b4981aebf2ba9bd7025ef7210e8eec07ce.tar.xz
[PATCH] cpusets: confine oom_killer to mem_exclusive cpuset
Now the real motivation for this cpuset mem_exclusive patch series seems trivial. This patch keeps a task in or under one mem_exclusive cpuset from provoking an oom kill of a task under a non-overlapping mem_exclusive cpuset. Since only interrupt and GFP_ATOMIC allocations are allowed to escape mem_exclusive containment, there is little to gain from oom killing a task under a non-overlapping mem_exclusive cpuset, as almost all kernel and user memory allocation must come from disjoint memory nodes. This patch enables configuring a system so that a runaway job under one mem_exclusive cpuset cannot cause the killing of a job in another such cpuset that might be using very high compute and memory resources for a prolonged time. Signed-off-by: Paul Jackson <pj@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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