linux/kernel/events
Robert Richter fd0d000b2c perf: Pass last sampling period to perf_sample_data_init()
We always need to pass the last sample period to
perf_sample_data_init(), otherwise the event distribution will be
wrong. Thus, modifiyng the function interface with the required period
as argument. So basically a pattern like this:

        perf_sample_data_init(&data, ~0ULL);
        data.period = event->hw.last_period;

will now be like that:

        perf_sample_data_init(&data, ~0ULL, event->hw.last_period);

Avoids unininitialized data.period and simplifies code.

Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1333390758-10893-3-git-send-email-robert.richter@amd.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09 15:23:12 +02:00
..
Makefile perf: Carve out callchain functionality 2011-11-14 13:31:26 +01:00
callchain.c perf: Don't call release_callchain_buffers() if allocation fails 2012-01-21 09:33:41 +01:00
core.c perf: Pass last sampling period to perf_sample_data_init() 2012-05-09 15:23:12 +02:00
hw_breakpoint.c perf: Disable PERF_SAMPLE_BRANCH_* when not supported 2012-03-05 14:55:42 +01:00
internal.h Merge branch 'perf/urgent' into perf/core 2011-12-06 06:43:49 +01:00
ring_buffer.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-01-08 13:21:22 -08:00