4ed7c92d68a5387ba5f7030dc76eab03558e27f5 - arm/linux

commit	4ed7c92d68a5387ba5f7030dc76eab03558e27f5	[log] [tgz]
author	Peter Zijlstra <a.p.zijlstra@chello.nl>	Mon Nov 23 11:37:29 2009 +0100
committer	Ingo Molnar <mingo@elte.hu>	Mon Nov 23 11:49:57 2009 +0100
tree	38d758819c41261275c2dbd6f64976f824c5fd27
parent	f67218c3e93abaf0f480bb94b53d234853ffe4de [diff]

perf_events: Undo some recursion damage

Make perf_swevent_get_recursion_context return a context number
and disable preemption.

This could be used to remove the IRQ disable from the trace bit
and index the per-cpu buffer with.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <20091123103819.993226816@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

include/linux/perf_event.h[diff]
include/trace/ftrace.h[diff]
kernel/perf_event.c[diff]
kernel/trace/trace_kprobe.c[diff]
kernel/trace/trace_syscalls.c[diff]

5 files changed

tree: 38d758819c41261275c2dbd6f64976f824c5fd27