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ftrace: make filtered functions effective on setting 

Impact: fix filter selection to apply when 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>
This commit is contained in:
Steven Rostedt 2008-11-18 23:57:14 -05:00 committed by Steven Rostedt
parent f10ed36ec1
commit 8204327831
1 changed files with 1 additions and 1 deletions
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2
kernel/trace/ftrace.c
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@ -1189,7 +1189,7 @@ 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 && ftrace_enabled)
if (ftrace_start && ftrace_enabled)
ftrace_run_update_code(FTRACE_ENABLE_CALLS);
mutex_unlock(&ftrace_start_lock);
mutex_unlock(&ftrace_sysctl_lock);