perf: Provide generic perf_sample_data initialization
authorPeter Zijlstra <a.p.zijlstra@chello.nl>
Wed, 3 Mar 2010 14:55:04 +0000 (15:55 +0100)
committerIngo Molnar <mingo@elte.hu>
Wed, 10 Mar 2010 12:22:23 +0000 (13:22 +0100)
commitdc1d628a67a8f042e711ea5accc0beedc3ef0092
tree728f72a5f9a8368b225890a95ea947c1c8cda301
parent548b84166917d6f5e2296123b85ad24aecd3801d
perf: Provide generic perf_sample_data initialization

This makes it easier to extend perf_sample_data and fixes a bug on arm
and sparc, which failed to set ->raw to NULL, which can cause crashes
when combined with PERF_SAMPLE_RAW.

It also optimizes PowerPC and tracepoint, because the struct
initialization is forced to zero out the whole structure.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Jean Pihet <jpihet@mvista.com>
Reviewed-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Jamie Iles <jamie.iles@picochip.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: stable@kernel.org
LKML-Reference: <20100304140100.315416040@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/arm/kernel/perf_event.c
arch/powerpc/kernel/perf_event.c
arch/sparc/kernel/perf_event.c
arch/x86/kernel/cpu/perf_event.c
arch/x86/kernel/cpu/perf_event_intel.c
include/linux/perf_event.h
kernel/perf_event.c