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Document seq_path_root() 

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Jonathan Corbet 2008-04-25 11:56:37 -06:00
parent 0fe8a3ce73
commit 9f4def9ae4
1 changed files with 8 additions and 2 deletions
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10
Documentation/filesystems/seq_file.txt
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@ -187,12 +187,18 @@ The first two output a single character and a string, just like one would
expect. seq_escape() is like seq_puts(), except that any character in s
which is in the string esc will be represented in octal form in the output.
There is also a function for printing filenames:
There is 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)
Here, path indicates the file of interest, and esc is a set of characters
which should be escaped in the output.
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.
Making it all work