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| author | Peter Zijlstra <peterz@infradead.org> | 2016-02-24 20:45:51 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-02-25 10:44:29 +0300 |
| commit | 0da4cf3e0a68c97ef811569804616a811f786729 (patch) | |
| tree | 89499f67352a9c6f56b41c3ae444c15b7da4c88e /fs/xfs/xfs_bmap_util.c | |
| parent | a096309bc4677f60caa8e93fcc613a55073c51d4 (diff) | |
| download | linux-0da4cf3e0a68c97ef811569804616a811f786729.tar.xz | |
perf: Robustify task_function_call()
Since there is no serialization between task_function_call() doing
task_curr() and the other CPU doing context switches, we could end
up not sending an IPI even if we had to.
And I'm not sure I still buy my own argument we're OK.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: dvyukov@google.com
Cc: eranian@google.com
Cc: oleg@redhat.com
Cc: panand@redhat.com
Cc: sasha.levin@oracle.com
Cc: vince@deater.net
Link: http://lkml.kernel.org/r/20160224174948.340031200@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'fs/xfs/xfs_bmap_util.c')
0 files changed, 0 insertions, 0 deletions