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authorSteven Rostedt <srostedt@redhat.com>2009-06-01 15:16:05 -0400
committerSteven Rostedt <rostedt@goodmis.org>2009-06-01 23:26:02 -0400
commit112f38a7e36e9d688b389507136bf3af3e6d159b (patch)
treee63fd02a143c57b5a786351e4f2643f2104e2346 /kernel/trace
parent1d080d6c3141623c92caaebe20e847cb99ccbb60 (diff)
tracing: make trace pipe recognize latency format flag
The trace_pipe did not recognize the latency format flag and would produce different output than the trace file. The problem was partly due that the trace flags in the iterator was not set as well as the trace_pipe zeros out part of the iterator (including the flags) to be able to use the same routines as the trace file. trace_flags of the iterator should not cause any problems when not zeroed out by for trace_pipe. Reported-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/trace.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index a3a8a87d7e9..cae34c69752 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -2826,6 +2826,9 @@ static int tracing_open_pipe(struct inode *inode, struct file *filp)
/* trace pipe does not show start of buffer */
cpumask_setall(iter->started);
+ if (trace_flags & TRACE_ITER_LATENCY_FMT)
+ iter->iter_flags |= TRACE_FILE_LAT_FMT;
+
iter->cpu_file = cpu_file;
iter->tr = &global_trace;
mutex_init(&iter->mutex);