tree 106512f307e2aa0a89f92c01598d5fa75903af47
parent 8a49542c0554af7d0073aac0ee73ee65b807ef34
author Peter Zijlstra <a.p.zijlstra@chello.nl> 1274437869 +0200
committer Ingo Molnar <mingo@elte.hu> 1275288369 +0200

perf_events, trace: Fix probe unregister race

tracepoint_probe_unregister() does not synchronize against the probe
callbacks, so do that explicitly. This properly serializes the callbacks
and the free of the data used therein.

Also, use this_cpu_ptr() where possible.

Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1274438476.1674.1702.camel@laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>