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| author | Ingo Molnar <mingo@elte.hu> | 2011-02-16 13:27:18 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-02-16 13:27:23 +0100 |
| commit | b00560f2d4de69bb12f66f9605985b516df98d77 (patch) | |
| tree | 0c92fc994125dc3ddb635842715be29d8b16808b /kernel/trace | |
| parent | bf1af3a809506645b9130755b713b008da14737f (diff) | |
| parent | 4fe757dd48a9e95e1a071291f15dda5421dacb66 (diff) | |
| download | linux-b00560f2d4de69bb12f66f9605985b516df98d77.tar.bz2 | |
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.c | 7 |
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); |