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

Documentation: ftrace: Module globbing usage

Browse Source 
Link: http://lkml.kernel.org/r/1443545176-3215-5-git-send-email-0x7f454c46@gmail.com

Signed-off-by: Dmitry Safonov <0x7f454c46@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Dmitry Safonov
2015-09-29 19:46:16 +03:00
committed by Steven Rostedt
parent 0b507e1ed1
commit b86d9371be
1 changed files with 17 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
Documentation/trace/ftrace.txt
View File

@@ -2437,6 +2437,23 @@ The following commands are supported:
echo '!writeback*:mod:ext3' >> set_ftrace_filter echo '!writeback*:mod:ext3' >> set_ftrace_filter
Mod command supports module globbing. Disable tracing for all
functions except a specific module:
echo '!*:mod:!ext3' >> set_ftrace_filter
Disable tracing for all modules, but still trace kernel:
echo '!*:mod:*' >> set_ftrace_filter
Enable filter only for kernel:
echo '*write*:mod:!*' >> set_ftrace_filter
Enable filter for module globbing:
echo '*write*:mod:*snd*' >> set_ftrace_filter
- traceon/traceoff - traceon/traceoff
These commands turn tracing on and off when the specified These commands turn tracing on and off when the specified
functions are hit. The parameter determines how many times the functions are hit. The parameter determines how many times the