From: Li Zefan <lizf@cn.fujitsu.com>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
Ingo Molnar <mingo@elte.hu>, LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH 3/3] function-graph: Allow writing the same val to set_graph_function
Date: Wed, 04 Nov 2009 13:15:53 +0800 [thread overview]
Message-ID: <4AF10E09.6090203@cn.fujitsu.com> (raw)
In-Reply-To: <4AF10DD9.4020902@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.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.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 b1acfb1..13f256a 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();
--
1.6.3
next prev parent reply other threads:[~2009-11-04 5:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-04 5:15 [PATCH 1/3] ftrace: Return EINVAL when writing invalid val to set_ftrace_filter Li Zefan
2009-11-04 5:15 ` [PATCH 2/3] ftrace: Call trace_parser_clear() properly Li Zefan
2009-11-04 5:15 ` Li Zefan [this message]
-- strict thread matches above, loose matches on Subject: below --
2009-11-03 0:55 [PATCH 1/3] ftrace: Fix unmatching locking in ftrace_regex_write() Li Zefan
2009-11-03 0:57 ` [PATCH 3/3] function-graph: Allow writing the same val to set_graph_function Li Zefan
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