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Message-ID: <20141216033757.GA2461@altlinux.org>
Date: Tue, 16 Dec 2014 06:37:57 +0300
From: "Dmitry V. Levin" <ldv@...linux.org>
To: Jonathan Corbet <corbet@....net>
Cc: Steven Rostedt <rostedt@...dmis.org>,
Joe Perches <joe@...ches.com>,
Steven Whitehouse <swhiteho@...hat.com>,
Fabian Frederick <fabf@...net.be>,
Rob Jones <rob.jones@...ethink.co.uk>,
linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [RESEND v4 PATCH] Documentation: update seq_file
Date: Wed, 17 Oct 2012 20:29:22 +0400
Update descriptions of seq_path() and seq_path_root():
starting with commit v3.2-rc4-1-g02125a8, seq_path_root() no longer
changes the value of root;
starting with commit v3.2-rc7-104-g8c9379e, some arguments of seq_path()
and seq_path_root() are const.
Signed-off-by: Dmitry V. Levin <ldv@...linux.org>
Acked-by: Rob Landley <rob@...dley.net>
---
Documentation/filesystems/seq_file.txt | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/Documentation/filesystems/seq_file.txt b/Documentation/filesystems/seq_file.txt
index b797ed3..9de4303 100644
--- a/Documentation/filesystems/seq_file.txt
+++ b/Documentation/filesystems/seq_file.txt
@@ -194,16 +194,16 @@ which is in the string esc will be represented in octal form in the output.
There are also a pair of functions for printing filenames:
- int seq_path(struct seq_file *m, struct path *path, char *esc);
- int seq_path_root(struct seq_file *m, struct path *path,
- struct path *root, char *esc)
+ int seq_path(struct seq_file *m, const struct path *path,
+ const char *esc);
+ int seq_path_root(struct seq_file *m, const struct path *path,
+ const struct path *root, const char *esc)
Here, path indicates the file of interest, and esc is a set of characters
which should be escaped in the output. A call to seq_path() will output
the path relative to the current process's filesystem root. If a different
-root is desired, it can be used with seq_path_root(). Note that, if it
-turns out that path cannot be reached from root, the value of root will be
-changed in seq_file_root() to a root which *does* work.
+root is desired, it can be used with seq_path_root(). If it turns out that
+path cannot be reached from root, seq_path_root() returns SEQ_SKIP.
A function producing complicated output may want to check
bool seq_has_overflowed(struct seq_file *m);
--
ldv
--
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