blktrace: Don't output messages if NOTIFY isn't set.

[pandora-kernel.git] / kernel / trace / blktrace.c

diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 153562d..d95721f 100644 (file)
--- 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);