K.Prasad 500ad2d8b0 perf/hwpb: Invoke __perf_event_disable() if interrupts are already disabled ... While debugging a warning message on PowerPC while using hardware breakpoints, it was discovered that when perf_event_disable is invoked through hw_breakpoint_handler function with interrupts disabled, a subsequent IPI in the code path would trigger a WARN_ON_ONCE message in smp_call_function_single function. This patch calls __perf_event_disable() when interrupts are already disabled, instead of perf_event_disable(). Reported-by: Edjunior Barbosa Machado <emachado@linux.vnet.ibm.com> Signed-off-by: K.Prasad <Prasad.Krishnan@gmail.com> [naveen.n.rao@linux.vnet.ibm.com: v3: Check to make sure we target current task] Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20120802081635.5811.17737.stgit@localhost.localdomain [ Fixed build error on MIPS. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>		2012-09-04 17:29:53 +02:00
..
Makefile	uprobes: Move to kernel/events/	2012-02-22 11:08:00 +01:00
callchain.c	perf/trace: Add ability to set a target task for events	2012-07-31 17:02:05 +02:00
core.c	perf/hwpb: Invoke __perf_event_disable() if interrupts are already disabled	2012-09-04 17:29:53 +02:00
hw_breakpoint.c	perf/hwpb: Invoke __perf_event_disable() if interrupts are already disabled	2012-09-04 17:29:53 +02:00
internal.h	perf/trace: Add ability to set a target task for events	2012-07-31 17:02:05 +02:00
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
uprobes.c	uprobes: __replace_page() needs munlock_vma_page()	2012-07-30 11:27:25 +02:00