Messages in this thread Patch in this message | | | Date | Mon, 14 Dec 2009 09:46:48 GMT | From | tip-bot for Li Zefan <> | Subject | [tip:tracing/urgent] function-graph: Allow writing the same val to set_graph_function |
| |
Commit-ID: 91baf6285be7282cfa487de92f836c50749dffb9 Gitweb: http://git.kernel.org/tip/91baf6285be7282cfa487de92f836c50749dffb9 Author: Li Zefan <lizf@cn.fujitsu.com> AuthorDate: Tue, 8 Dec 2009 11:15:45 +0800 Committer: Frederic Weisbecker <fweisbec@gmail.com> CommitDate: Sun, 13 Dec 2009 18:37:26 +0100
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> --- 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 ff8aecd..7968762 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();
| |