diff options
| author | Will Deacon <will.deacon@arm.com> | 2014-02-11 18:08:41 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-06-11 12:03:27 -0700 |
| commit | c318d7b4db9b4f47e0e29c24f4cac6f5e0644dc1 (patch) | |
| tree | e12b1e6d87b36168dd1c56c0db569951fa0b634d /block/blk-core.c | |
| parent | 02f98e3e36da106338b7c732fed516420fb20e2a (diff) | |
ARM: perf: hook up perf_sample_event_took around pmu irq handling
commit 5f5092e72cc25a6a5785308270e0085b2b2772cc upstream.
Since we indirect all of our PMU IRQ handling through a dispatcher, it's
trivial to hook up perf_sample_event_took to prevent applications such
as oprofile from generating interrupt storms due to an unrealisticly
low sample period.
Reported-by: Robert Richter <rric@kernel.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Cc: Weng Meiling <wengmeiling.weng@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'block/blk-core.c')
0 files changed, 0 insertions, 0 deletions