oom: do not dump task state for non thread group leaders
authorDavid Rientjes <rientjes@google.com>
Thu, 6 Nov 2008 20:53:29 +0000 (12:53 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 6 Nov 2008 23:41:18 +0000 (15:41 -0800)
commitb4416d2bea007f07f2e74cdc4cb64042ec996c83
treea7b8250e3ab4f9de7c55a5b502238767aff90665
parent953a64798d82ee5467da2bdc0e467ef874fbc208
oom: do not dump task state for non thread group leaders

When /proc/sys/vm/oom_dump_tasks is enabled, it's only necessary to dump
task state information for thread group leaders.  The kernel log gets
quickly overwhelmed on machines with a massive number of threads by
dumping non-thread group leaders.

Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
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