Document seq_path_root()
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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@ -187,12 +187,18 @@ The first two output a single character and a string, just like one would
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expect. seq_escape() is like seq_puts(), except that any character in s
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expect. seq_escape() is like seq_puts(), except that any character in s
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which is in the string esc will be represented in octal form in the output.
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which is in the string esc will be represented in octal form in the output.
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There is also a function for printing filenames:
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There is also a pair of functions for printing filenames:
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int seq_path(struct seq_file *m, struct path *path, char *esc);
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int seq_path(struct seq_file *m, struct path *path, char *esc);
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int seq_path_root(struct seq_file *m, struct path *path,
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struct path *root, char *esc)
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Here, path indicates the file of interest, and esc is a set of characters
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Here, path indicates the file of interest, and esc is a set of characters
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which should be escaped in the output.
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which should be escaped in the output. A call to seq_path() will output
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the path relative to the current process's filesystem root. If a different
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root is desired, it can be used with seq_path_root(). Note that, if it
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turns out that path cannot be reached from root, the value of root will be
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changed in seq_file_root() to a root which *does* work.
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Making it all work
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Making it all work
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