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tracing: update documentation of snapshot utility

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Now, "snapshot" file returns success on a reset of snapshot buffer
even if the buffer wasn't allocated, instead of returning EINVAL.
This patch updates snapshot desctiption according to the change.

Link: http://lkml.kernel.org/r/51399409.4090207@hitachi.com

Signed-off-by: Hiraku Toyooka <hiraku.toyooka.gu@hitachi.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Hiraku Toyooka
2013-03-08 16:32:25 +09:00
committed by Steven Rostedt
parent c9960e4854
commit 1abccd7419
1 changed files with 1 additions and 1 deletions
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Documentation/trace/ftrace.txt
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@@ -1873,7 +1873,7 @@ feature:
status\input | 0 | 1 | else | status\input | 0 | 1 | else |
--------------+------------+------------+------------+ --------------+------------+------------+------------+
not allocated |(do nothing)| alloc+swap | EINVAL | not allocated |(do nothing)| alloc+swap |(do nothing)|
--------------+------------+------------+------------+ --------------+------------+------------+------------+
allocated | free | swap | clear | allocated | free | swap | clear |
--------------+------------+------------+------------+ --------------+------------+------------+------------+