diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2012-06-05 15:30:31 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-06-06 17:22:26 +0200 |
| commit | 5a425294ee7d4ab5a374248e85838dfd450caf75 (patch) | |
| tree | 107d193d769524b6cdb405073cba0b7f39208305 /tools/perf/scripts/python/sched-migration.py | |
| parent | 778b032d96909690c19d84f8d17c13be65ed6f8e (diff) | |
perf/x86: Fix Intel shared extra MSR allocation
Zheng Yan reported that event group validation can wreck event state
when Intel extra_reg allocation changes event state.
Validation shouldn't change any persistent state. Cloning events in
validate_{event,group}() isn't really pretty either, so add a few
special cases to avoid modifying the event state.
The code is restructured to minimize the special case impact.
Reported-by: Zheng Yan <zheng.z.yan@linux.intel.com>
Acked-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1338903031.28282.175.camel@twins
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/sched-migration.py')
0 files changed, 0 insertions, 0 deletions