Stephane Eranian a4a108e8d7 perf: Fix interrupt handler timing harness ...

commit e5302920da upstream.

This patch fixes a serious bug in:

  14c63f17b1 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>
Cc: Weng Meiling <wengmeiling.weng@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2014-06-11 12:03:27 -07:00

..

callchain.c

perf: Add attribute to filter out callchains

2012-08-10 12:40:57 -03:00

core.c

perf: Fix interrupt handler timing harness

2014-06-11 12:03:27 -07:00

hw_breakpoint.c

hw_breakpoint: Use cpu_possible_mask in {reserve,release}_bp_slot()

2013-06-20 17:57:01 +02:00

internal.h

perf: Fix mmap() accounting hole

2013-06-19 12:44:13 +02:00

Makefile

uprobes: Move to kernel/events/

2012-02-22 11:08:00 +01:00

ring_buffer.c

perf: Fix perf ring buffer memory ordering

2013-11-20 12:27:47 -08:00

uprobes.c

uprobes: Fix utask->depth accounting in handle_trampoline()

2013-09-26 17:18:27 -07:00