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| author | Steven Rostedt (Red Hat) <rostedt@goodmis.org> | 2014-04-29 23:54:37 +0200 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2014-04-30 14:40:05 +0200 |
| commit | b1169cc69ba96b124df820904a6d3eb775491d7f (patch) | |
| tree | 95927d3a0c262c94def2d76b7f591e9d8ad46385 /kernel/trace/trace_functions.c | |
| parent | tracing: Break out of tracing_wait_pipe() before wait_pipe() is called (diff) | |
| download | linux-b1169cc69ba96b124df820904a6d3eb775491d7f.tar.xz linux-b1169cc69ba96b124df820904a6d3eb775491d7f.zip | |
tracing: Remove mock up poll wait function
Now that the ring buffer has a built in way to wake up readers
when there's data, using irq_work such that it is safe to do it
in any context. But it was still using the old "poor man's"
wait polling that checks every 1/10 of a second to see if it
should wake up a waiter. This makes the latency for a wake up
excruciatingly long. No need to do that anymore.
Completely remove the different wait_poll types from the tracers
and have them all use the default one now.
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_functions.c')
| -rw-r--r-- | kernel/trace/trace_functions.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/kernel/trace/trace_functions.c b/kernel/trace/trace_functions.c index 2d9482b8f26a..57f0ec962d2c 100644 --- a/kernel/trace/trace_functions.c +++ b/kernel/trace/trace_functions.c @@ -252,7 +252,6 @@ static struct tracer function_trace __tracer_data = .init = function_trace_init, .reset = function_trace_reset, .start = function_trace_start, - .wait_pipe = poll_wait_pipe, .flags = &func_flags, .set_flag = func_set_flag, .allow_instances = true, |