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ftrace: make filtered functions effective on setting 

Impact: set filtered functions at time the filter is set

It can be confusing when the set_filter_functions is set (or cleared)
and the functions being recorded by the dynamic tracer does not
match.

This patch causes the code to be updated if the function tracer is
enabled and the filter is changed.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
5bit-waveforms
Steven Rostedt 2008-11-15 16:31:41 -05:00 committed by Ingo Molnar
parent 982c350b9e
commit ee02a2e5c8
1 changed files with 1 additions and 1 deletions
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2
kernel/trace/ftrace.c
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@ -1194,7 +1194,7 @@ ftrace_regex_release(struct inode *inode, struct file *file, int enable)
mutex_lock(&ftrace_sysctl_lock);
mutex_lock(&ftrace_start_lock);
if (iter->filtered && ftrace_start_up && ftrace_enabled)
if (ftrace_start_up && ftrace_enabled)
ftrace_run_update_code(FTRACE_ENABLE_CALLS);
mutex_unlock(&ftrace_start_lock);
mutex_unlock(&ftrace_sysctl_lock);