From: Dmitry V. Levin Date: Wed, 17 Oct 2012 16:29:22 +0000 (+0400) Subject: Documentation: update seq_file X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=380945365d3824e7c62deb17930453acdcb65eaa;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git Documentation: update seq_file 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 Acked-by: Rob Landley Signed-off-by: Jonathan Corbet --- diff --git a/Documentation/filesystems/seq_file.txt b/Documentation/filesystems/seq_file.txt index b797ed38de46..9de4303201e1 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);