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authorStephane Eranian <eranian@google.com>2013-07-05 00:30:11 +0200
committerIngo Molnar <mingo@kernel.org>2013-07-05 08:54:43 +0200
commite5302920da9ef23f9d19d4e9ac85704cc25bee7a (patch)
treebea762940dbb32ec98e99de896ad3a6d450cc025 /fs
parent100ac5331519866afa9b000b10642b00cb6d03dd (diff)
downloadop-kernel-dev-e5302920da9ef23f9d19d4e9ac85704cc25bee7a.zip
op-kernel-dev-e5302920da9ef23f9d19d4e9ac85704cc25bee7a.tar.gz
perf: Fix interrupt handler timing harness
This patch fixes a serious bug in: 14c63f17b1fd perf: Drop sample rate when sampling is too slow There was an misunderstanding on the API of the do_div() macro. It returns the remainder of the division and this was not what the function expected leading to disabling the interrupt latency watchdog. This patch also remove a duplicate assignment in perf_sample_event_took(). Signed-off-by: Stephane Eranian <eranian@google.com> Cc: peterz@infradead.org Cc: dave.hansen@linux.intel.com Cc: ak@linux.intel.com Cc: jolsa@redhat.com Link: http://lkml.kernel.org/r/20130704223010.GA30625@quad Signed-off-by: Ingo Molnar <mingo@kernel.org>
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