]> git.openfabrics.org - ~shefty/rdma-dev.git/commit
memcontrol: move oom task exclusion to tasklist scan
authorDavid Rientjes <rientjes@google.com>
Thu, 7 Feb 2008 08:14:06 +0000 (00:14 -0800)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Thu, 7 Feb 2008 16:42:19 +0000 (08:42 -0800)
commit4c4a22148909e4c003562ea7ffe0a06e26919e3c
treefa8b7d00e89f0eb4cdb4394dbc74d898810519aa
parent4c6bc8dd5a0932f2c0b30a5f0a124464b7f614d0
memcontrol: move oom task exclusion to tasklist scan

Creates a helper function to return non-zero if a task is a member of a
memory controller:

int task_in_mem_cgroup(const struct task_struct *task,
       const struct mem_cgroup *mem);

When the OOM killer is constrained by the memory controller, the exclusion
of tasks that are not a member of that controller was previously misplaced
and appeared in the badness scoring function.  It should be excluded
during the tasklist scan in select_bad_process() instead.

[akpm@linux-foundation.org: build fix]
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Balbir Singh <balbir@linux.vnet.ibm.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>
include/linux/memcontrol.h
mm/memcontrol.c
mm/oom_kill.c