Peter Zijlstra 00a2916f7f perf: Fix running time accounting ... A recent fix to the shadow timestamp inadvertly broke the running time accounting. We must not update the running timestamp if we fail to schedule the event, the event will not have ran. This can (and did) result in negative total runtime because the stopped timestamp was before the running timestamp (we 'started' but never stopped the event -- because it never really started we didn't have to stop it either). Reported-and-Tested-by: Vince Weaver <vincent.weaver@maine.edu> Fixes: 72f669c008 ("perf: Update shadow timestamp before add event") Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: stable@vger.kernel.org # 4.1 Cc: Shaohua Li <shli@fb.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>		2015-07-27 13:52:19 +02:00
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callchain.c	Merge branch 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2014-10-15 07:48:18 +02:00
core.c	perf: Fix running time accounting	2015-07-27 13:52:19 +02:00
hw_breakpoint.c	perf: Remove type specific target pointers	2015-03-23 10:58:04 +01:00
internal.h	perf: Fix AUX buffer refcounting	2015-07-06 14:08:30 +02:00
Makefile	ftrace: allow architectures to specify ftrace compile options	2015-01-29 09:19:19 +01:00
ring_buffer.c	perf: Fix AUX buffer refcounting	2015-07-06 14:08:30 +02:00
uprobes.c	Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux	2014-12-15 15:52:01 -08:00