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authorFrédéric Weisbecker <fweisbec@gmail.com>2008-09-21 20:16:30 +0200
committerIngo Molnar <mingo@elte.hu>2008-10-14 10:38:09 +0200
commit43a15386c4faf913f7d70a47748c266d6210cd6e (patch)
tree2af766a34661123bd520fb30b1f83fbff1e65dab /kernel/trace/trace.h
parent2a3a4f669df2164288d11406d11d5e4933bf5e53 (diff)
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.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index c8c687088b4..cb2c3fb7dd5 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 */