linux

iv/linux

History

Knut Petersen 723478c8a4 perf: Enforce 1 as lower limit for perf_event_max_sample_rate

/proc/sys/kernel/perf_event_max_sample_rate will accept
negative values as well as 0.

Negative values are unreasonable, and 0 causes a
divide by zero exception in perf_proc_update_handler.

This patch enforces a lower limit of 1.

Signed-off-by: Knut Petersen <Knut_Petersen@t-online.de>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/5242DB0C.4070005@t-online.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>

2013-10-04 10:06:07 +02:00

callchain.c

perf: Roll back callchain buffer refcount under the callchain mutex

2013-08-16 17:55:50 +02:00

core.c

perf: Enforce 1 as lower limit for perf_event_max_sample_rate

2013-10-04 10:06:07 +02:00

hw_breakpoint.c

hw_breakpoint: Introduce "struct bp_cpuinfo"

2013-06-20 17:58:57 +02:00

internal.h

perf: Fix mmap() accounting hole