linux-sg2042/kernel/events
Michael Ellerman 724b6daa13 perf: Fix perf_event_for_each() to use sibling
In perf_event_for_each() we call a function on an event, and then
iterate over the siblings of the event.

However we don't call the function on the siblings, we call it
repeatedly on the original event - it seems "obvious" that we should
be calling it with sibling as the argument.

It looks like this broke in commit 75f937f24b ("Fix ctx->mutex
vs counter->mutex inversion").

The only effect of the bug is that the PERF_IOC_FLAG_GROUP parameter
to the ioctls doesn't work.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1334109253-31329-1-git-send-email-michael@ellerman.id.au
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-04-26 13:51:31 +02:00
..
Makefile perf: Carve out callchain functionality 2011-11-14 13:31:26 +01:00
callchain.c perf: Don't call release_callchain_buffers() if allocation fails 2012-01-21 09:33:41 +01:00
core.c perf: Fix perf_event_for_each() to use sibling 2012-04-26 13:51:31 +02:00
hw_breakpoint.c perf: Disable PERF_SAMPLE_BRANCH_* when not supported 2012-03-05 14:55:42 +01:00
internal.h Merge branch 'perf/urgent' into perf/core 2011-12-06 06:43:49 +01:00
ring_buffer.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-01-08 13:21:22 -08:00