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authorPeter Zijlstra <peterz@infradead.org>2014-05-21 17:32:19 +0200
committerIngo Molnar <mingo@kernel.org>2014-06-06 07:54:02 +0200
commite041e328c4b41e1db79bfe5ba9992c2ed771ad19 (patch)
tree88f8689160ae586c728e6ef665cc4c580c116ba9 /include/uapi
parent22c91aa23547a4363fd2a9ffddde95c899ac8aa0 (diff)
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perf: Fix perf_event_comm() vs. exec() assumption
perf_event_comm() assumes that set_task_comm() is only called on exec(), and in particular that its only called on current. Neither are true, as Dave reported a WARN triggered by set_task_comm() being called on !current. Separate the exec() hook from the comm hook. Reported-by: Dave Jones <davej@redhat.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: linux-fsdevel@vger.kernel.org Cc: linux-kernel@vger.kernel.org Link: http://lkml.kernel.org/r/20140521153219.GH5226@laptop.programming.kicks-ass.net [ Build fix. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
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