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ftrace: Update filter when tracing enabled in set_ftrace_filter()

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commit 072126f452 upstream.

Currently, if set_ftrace_filter() is called when the ftrace_ops is
active, the function filters will not be updated. They will only be updated
when tracing is disabled and re-enabled.

Update the functions immediately during set_ftrace_filter().

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Steven Rostedt
2011-07-13 15:08:31 -04:00
committed by Greg Kroah-Hartman
parent f935e6192f
commit 2ffe3ccf80
1 changed files with 4 additions and 0 deletions
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4
kernel/trace/ftrace.c
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@@ -2901,6 +2901,10 @@ ftrace_set_regex(struct ftrace_ops *ops, unsigned char *buf, int len,
mutex_lock(&ftrace_lock);
ret = ftrace_hash_move(ops, enable, orig_hash, hash);
if (!ret && ops->flags & FTRACE_OPS_FL_ENABLED
&& ftrace_enabled)
ftrace_run_update_code(FTRACE_ENABLE_CALLS);
mutex_unlock(&ftrace_lock);
mutex_unlock(&ftrace_regex_lock);