1
linux/include/trace
Frederic Weisbecker ce71b9df88 tracing: Use the perf recursion protection from trace event
When we commit a trace to perf, we first check if we are
recursing in the same buffer so that we don't mess-up the buffer
with a recursing trace. But later on, we do the same check from
perf to avoid commit recursion. The recursion check is desired
early before we touch the buffer but we want to do this check
only once.

Then export the recursion protection from perf and use it from
the trace events before submitting a trace.

v2: Put appropriate Reported-by tag

Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Jason Baron <jbaron@redhat.com>
LKML-Reference: <1258864015-10579-1-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-22 09:03:42 +01:00
..
events tracing: Rename 'lockdep' event subsystem into 'lock' 2009-11-13 10:48:27 +01:00
boot.h tracing/fastboot: include missing headers 2008-12-12 09:26:13 +01:00
define_trace.h tracing: Undef TRACE_EVENT_FN between trace events headers inclusion 2009-08-27 18:32:54 +02:00
ftrace.h tracing: Use the perf recursion protection from trace event 2009-11-22 09:03:42 +01:00
power.h tracing: replace TP<var> with TP_<var> 2009-03-10 00:35:04 -04:00
syscall.h Merge branch 'perf/core' into perf/probes 2009-10-23 08:23:20 +02:00