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| author |   Frédéric Weisbecker <fweisbec@gmail.com> | 2008-09-21 20:16:30 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2008-10-14 10:38:09 +0200 |
| commit | 43a15386c4faf913f7d70a47748c266d6210cd6e (patch) | |
| tree | 2af766a34661123bd520fb30b1f83fbff1e65dab /kernel/trace/trace.h | |
| parent | tracing/ftrace: tracing engine depends on Nop Tracer (diff) | |
| download | linux-dev-43a15386c4faf913f7d70a47748c266d6210cd6e.tar.xz linux-dev-43a15386c4faf913f7d70a47748c266d6210cd6e.zip | |
tracing/ftrace: replace none tracer by nop tracer
Replace "none" tracer by the recently created "nop" tracer.
Both are pretty similar except that nop accepts TRACE_PRINT
or TRACE_SPECIAL entries.
And as a consequence, changing the size of the ring buffer now
requires that tracing has already been disabled.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Steven Noonan <steven@uplinklabs.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/trace/trace.h')
| -rw-r--r-- | kernel/trace/trace.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index c8c687088b4d..cb2c3fb7dd54 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -369,4 +369,6 @@ enum trace_iterator_flags { TRACE_ITER_PRINTK = 0x400, }; +extern struct tracer nop_trace; + #endif /* _LINUX_KERNEL_TRACE_H */ |