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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2012-10-02 15:41:23 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-10-01 08:55:48 -0700 |
| commit | 0f722a400afccaa0fac2ff010ba337ba428bd78b (patch) | |
| tree | 8f13d73a6c195a7c66df3486810b93ddbe1a24af /fs | |
| parent | 38770b82bdd3523d92596a0807d3751bb7d25224 (diff) | |
| download | kernel_samsung_tuna-0f722a400afccaa0fac2ff010ba337ba428bd78b.zip kernel_samsung_tuna-0f722a400afccaa0fac2ff010ba337ba428bd78b.tar.gz kernel_samsung_tuna-0f722a400afccaa0fac2ff010ba337ba428bd78b.tar.bz2 | |
perf: Fix perf_cgroup_switch for sw-events
commit 95cf59ea72331d0093010543b8951bb43f262cac upstream.
Jiri reported that he could trigger the WARN_ON_ONCE() in
perf_cgroup_switch() using sw-events. This is because sw-events share
a cpuctx with multiple PMUs.
Use the ->unique_pmu pointer to limit the pmu iteration to unique
cpuctx instances.
Reported-and-Tested-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-so7wi2zf3jjzrwcutm2mkz0j@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Li Zefan <lizefan@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions