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| author | Steven Rostedt (Red Hat) <rostedt@goodmis.org> | 2015-05-28 20:21:34 +0300 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2015-05-28 23:47:39 +0300 |
| commit | 3c6296f716ebef704b76070d90567ab4faa8462c (patch) | |
| tree | fc9a587239395d5dc882c8f17756ba6aa29ba838 /include/linux/kernel.h | |
| parent | 289a5a25c5d0949e4d9b9ca4f334b6af5a83e090 (diff) | |
| download | linux-3c6296f716ebef704b76070d90567ab4faa8462c.tar.xz | |
ring-buffer: Remove useless unused tracing_off_permanent()
The tracing_off_permanent() call is a way to disable all ring_buffers.
Nothing uses it and nothing should use it, as tracing_off() and
friends are better, as they disable the ring buffers related to
tracing. The tracing_off_permanent() even disabled non tracing
ring buffers. This is a bit drastic, and was added to handle NMIs
doing outputs that could corrupt the ring buffer when only tracing
used them. It is now obsolete and adds a little overhead, it should
be removed.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'include/linux/kernel.h')
| -rw-r--r-- | include/linux/kernel.h | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 3a5b48e52a9e..d948718a83d7 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -532,12 +532,6 @@ bool mac_pton(const char *s, u8 *mac); * * Most likely, you want to use tracing_on/tracing_off. */ -#ifdef CONFIG_RING_BUFFER -/* trace_off_permanent stops recording with no way to bring it back */ -void tracing_off_permanent(void); -#else -static inline void tracing_off_permanent(void) { } -#endif enum ftrace_dump_mode { DUMP_NONE, |