Messages in this thread Patch in this message | | | From | Frederic Weisbecker <> | Subject | [PATCH 06/13] function-graph: Allow writing the same val to set_graph_function | Date | Sun, 13 Dec 2009 14:08:07 +0100 |
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From: Li Zefan <lizf@cn.fujitsu.com>
# 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(); -- 1.6.2.3
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