tracing: Enable records during the module load

Browse source

I was debuging some module using "function" and "function_graph"
tracers and noticed, that if you load module after you enabled
tracing, the module's hooks will convert only to NOP instructions.

The attached patch enables modules' hooks if there's function trace
allready on, thus allowing to trace module functions.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <20091013203425.896285120@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

...

This commit is contained in:

Jiri Olsa 2009-10-13 16:33:53 -04:00 • committed by Ingo Molnar

parent 756d17ee7e

commit 5cb084bb1f

1 changed files with 30 additions and 8 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

38

kernel/trace/ftrace.c

View file