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(parent: f67218c) | patch
perf_events: Undo some recursion damage
authorPeter Zijlstra <a.p.zijlstra@chello.nl>
Mon, 23 Nov 2009 10:37:29 +0000 (11:37 +0100)
committerIngo Molnar <mingo@elte.hu>
Mon, 23 Nov 2009 10:49:57 +0000 (11:49 +0100)
commit4ed7c92d68a5387ba5f7030dc76eab03558e27f5
tree38d758819c41261275c2dbd6f64976f824c5fd27tree | snapshot
parentf67218c3e93abaf0f480bb94b53d234853ffe4decommit | 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 | blob | history
include/trace/ftrace.h diff | blob | history
kernel/perf_event.c diff | blob | history
kernel/trace/trace_kprobe.c diff | blob | history
kernel/trace/trace_syscalls.c diff | blob | history
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