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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2010-10-15 09:40:29 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-10-18 17:58:51 (GMT) |
| commit | 74c3337c2fc6389d3a57a622a936036b6db6b2e8 (patch) | |
| tree | d87232b7cc19eef0f1fe0a0bb167868513819b31 /drivers/dio/dio-driver.c | |
| parent | e360adbe29241a0194e10e20595360dd7b98a2b3 (diff) | |
| download | linux-fsl-qoriq-74c3337c2fc6389d3a57a622a936036b6db6b2e8.tar.xz | |
perf: Fix group moving
Matt found we trigger the WARN_ON_ONCE() in perf_group_attach() when we take
the move_group path in perf_event_open().
Since we cannot de-construct the group (we rely on it to move the events), we
have to simply ignore the double attach. The group state is context invariant
and doesn't need changing.
Reported-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1287135757.29097.1368.camel@twins>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/dio/dio-driver.c')
0 files changed, 0 insertions, 0 deletions