diff options
| author | Andy Lutomirski <[email protected]> | 2017-03-16 12:59:40 -0700 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2017-03-17 08:28:26 +0100 |
| commit | 4b07372a32c0c1505a7634ad7e607d83340ef645 (patch) | |
| tree | 3af5756c3cfe90f9f994356941b5435312168f70 /drivers/gpu/drm/amd/amdgpu/amdgpu_test.c | |
| parent | 5dc855d44c2ad960a86f593c60461f1ae1566b6d (diff) | |
x86/perf: Clarify why x86_pmu_event_mapped() isn't racy
Naively, it looks racy, but ->mmap_sem saves it. Add a comment and a
lockdep assertion.
Signed-off-by: Andy Lutomirski <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Vince Weaver <[email protected]>
Link: http://lkml.kernel.org/r/03a1e629063899168dfc4707f3bb6e581e21f5c6.1489694270.git.luto@kernel.org
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_test.c')
0 files changed, 0 insertions, 0 deletions