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| author | Peter Zijlstra <peterz@infradead.org> | 2013-11-27 13:54:38 +0000 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-12-17 15:21:33 +0100 |
| commit | bad7192b842c83e580747ca57104dd51fe08c223 (patch) | |
| tree | 5a73fe2fc627384fa6ab621cc59433dc922f1155 /mm/slab_common.c | |
| parent | 7fd565e27547c913b83b46d94662103be81a88ec (diff) | |
| download | op-kernel-dev-bad7192b842c83e580747ca57104dd51fe08c223.zip op-kernel-dev-bad7192b842c83e580747ca57104dd51fe08c223.tar.gz | |
perf: Fix PERF_EVENT_IOC_PERIOD to force-reset the period
Vince Weaver reports that, on all architectures apart from ARM,
PERF_EVENT_IOC_PERIOD doesn't actually update the period until the next
event fires. This is counter-intuitive behaviour and is better dealt
with in the core code.
This patch ensures that the period is forcefully reset when dealing with
such a request in the core code. A subsequent patch removes the
equivalent hack from the ARM back-end.
Reported-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Link: http://lkml.kernel.org/r/1385560479-11014-1-git-send-email-will.deacon@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/slab_common.c')
0 files changed, 0 insertions, 0 deletions
