oom: kill all threads that share mm with killed task
oom_kill_task() calls __oom_kill_task() to OOM kill a selected task. When finding other threads that share an mm with that task, we need to kill those individual threads and not the same one. (Bug introduced by f2a2a710) Acked-by: NWilliam Irwin <bill.irwin@oracle.com> Acked-by: NChristoph Lameter <clameter@engr.sgi.com> Cc: Nick Piggin <npiggin@suse.de> Cc: Andrew Morton <akpm@osdl.org> Cc: Andi Kleen <ak@suse.de> Signed-off-by: NDavid Rientjes <rientjes@google.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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