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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_nop.c
parent2a3a4f669df2164288d11406d11d5e4933bf5e53 (diff)
downloadop-kernel-dev-43a15386c4faf913f7d70a47748c266d6210cd6e.zip
op-kernel-dev-43a15386c4faf913f7d70a47748c266d6210cd6e.tar.gz
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_nop.c')
-rw-r--r--kernel/trace/trace_nop.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/kernel/trace/trace_nop.c b/kernel/trace/trace_nop.c
index 9fb02c1..16c9ba0 100644
--- a/kernel/trace/trace_nop.c
+++ b/kernel/trace/trace_nop.c
@@ -51,7 +51,7 @@ static void nop_trace_ctrl_update(struct trace_array *tr)
stop_nop_trace(tr);
}
-static struct tracer nop_trace __read_mostly =
+struct tracer nop_trace __read_mostly =
{
.name = "nop",
.init = nop_trace_init,
@@ -62,8 +62,3 @@ static struct tracer nop_trace __read_mostly =
#endif
};
-__init static int init_nop_trace(void)
-{
- return register_tracer(&nop_trace);
-}
-device_initcall(init_nop_trace);
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