xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

tracing/ftrace: replace none tracer by nop tracer

Browse Source 
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>
This commit is contained in:
Frédéric Weisbecker
2008-09-21 20:16:30 +02:00
committed by Ingo Molnar
parent 2a3a4f669d
commit 43a15386c4
3 changed files with 12 additions and 46 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
kernel/trace/trace_nop.c
View File

@@ -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);