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authorIngo Molnar <mingo@elte.hu>2011-02-16 13:27:18 +0100
committerIngo Molnar <mingo@elte.hu>2011-02-16 13:27:23 +0100
commitb00560f2d4de69bb12f66f9605985b516df98d77 (patch)
tree0c92fc994125dc3ddb635842715be29d8b16808b /kernel/trace
parentbf1af3a809506645b9130755b713b008da14737f (diff)
parent4fe757dd48a9e95e1a071291f15dda5421dacb66 (diff)
Merge branch 'perf/urgent' into perf/core
Merge reason: we need to queue up dependent patch Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/blktrace.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 153562d0b93c..d95721f33702 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -138,6 +138,13 @@ void __trace_note_message(struct blk_trace *bt, const char *fmt, ...)
!blk_tracer_enabled))
return;
+ /*
+ * If the BLK_TC_NOTIFY action mask isn't set, don't send any note
+ * message to the trace.
+ */
+ if (!(bt->act_mask & BLK_TC_NOTIFY))
+ return;
+
local_irq_save(flags);
buf = per_cpu_ptr(bt->msg_data, smp_processor_id());
va_start(args, fmt);