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| author | Will Deacon <will.deacon@arm.com> | 2011-07-01 14:38:12 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-07-05 12:37:23 +0100 |
| commit | f4f38430c94c38187db73a2cf3892cc8b12a2713 (patch) | |
| tree | e8101e5202bfe600f928f3f2400dfd5afa4b54f6 /MAINTAINERS | |
| parent | 178783622ce0fd629fad21b33b8f8f56b64c5e45 (diff) | |
| download | kernel_samsung_smdk4412-f4f38430c94c38187db73a2cf3892cc8b12a2713.zip kernel_samsung_smdk4412-f4f38430c94c38187db73a2cf3892cc8b12a2713.tar.gz kernel_samsung_smdk4412-f4f38430c94c38187db73a2cf3892cc8b12a2713.tar.bz2 | |
ARM: 6989/1: perf: do not start the PMU when no events are present
armpmu_enable can be called in situations where no events are present
(for example, from the event rotation tick after a profiled task has
exited). In this case, we currently start the PMU anyway which may
leave it active inevitably without any events being monitored.
This patch adds a simple check to the enabling code so that we avoid
starting the PMU when no events are present.
Cc: <stable@kernel.org>
Reported-by: Ashwin Chaugle <ashwinc@codeaurora.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'MAINTAINERS')
0 files changed, 0 insertions, 0 deletions