diff options
| author | Li Zefan <lizf@cn.fujitsu.com> | 2009-12-08 11:15:45 +0800 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2009-12-13 18:37:26 +0100 |
| commit | 91baf6285be7282cfa487de92f836c50749dffb9 (patch) | |
| tree | 766544ebcc24fecf177eba5bd8be475cf3516eef /kernel/trace/ftrace.c | |
| parent | 313254a9400d388b46150c0f355e216418a2f598 (diff) | |
function-graph: Allow writing the same val to set_graph_function
# echo 'do_open' > set_graph_function
# echo 'do_open' >> set_graph_function
bash: echo: write error: Invalid argument
Make it valid to write the same value to set_graph_function,
which is consistent with set_ftrace_filter interface.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
LKML-reference: <4B1DC4E1.1060303@cn.fujitsu.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'kernel/trace/ftrace.c')
| -rw-r--r-- | kernel/trace/ftrace.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index ff8aecdc6dd6..7968762c8167 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -2552,10 +2552,9 @@ ftrace_set_func(unsigned long *array, int *idx, char *buffer) exists = true; break; } - if (!exists) { + if (!exists) array[(*idx)++] = rec->ip; - found = 1; - } + found = 1; } } while_for_each_ftrace_rec(); |