diff options
| -rw-r--r-- | fs/dcache.c | 8 | ||||
| -rw-r--r-- | fs/seq_file.c | 10 |
2 files changed, 14 insertions, 4 deletions
diff --git a/fs/dcache.c b/fs/dcache.c index c231a639c2a..bdb3f50248a 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -1908,7 +1908,8 @@ static int prepend_name(char **buffer, int *buflen, struct qstr *name) * Convert a dentry into an ASCII path name. If the entry has been deleted * the string " (deleted)" is appended. Note that this is ambiguous. * - * Returns the buffer or an error code if the path was too long. + * Returns a pointer into the buffer or an error code if the + * path was too long. * * "buflen" should be positive. Caller holds the dcache_lock. * @@ -1984,7 +1985,10 @@ Elong: * Convert a dentry into an ASCII path name. If the entry has been deleted * the string " (deleted)" is appended. Note that this is ambiguous. * - * Returns the buffer or an error code if the path was too long. + * Returns a pointer into the buffer or an error code if the path was + * too long. Note: Callers should use the returned pointer, not the passed + * in buffer, to use the name! The implementation often starts at an offset + * into the buffer, and may leave 0 bytes at the start. * * "buflen" should be positive. */ diff --git a/fs/seq_file.c b/fs/seq_file.c index 16c211558c2..99d8b8cfc9b 100644 --- a/fs/seq_file.c +++ b/fs/seq_file.c @@ -389,8 +389,14 @@ char *mangle_path(char *s, char *p, char *esc) } EXPORT_SYMBOL(mangle_path); -/* - * return the absolute path of 'dentry' residing in mount 'mnt'. +/** + * seq_path - seq_file interface to print a pathname + * @m: the seq_file handle + * @path: the struct path to print + * @esc: set of characters to escape in the output + * + * return the absolute path of 'path', as represented by the + * dentry / mnt pair in the path parameter. */ int seq_path(struct seq_file *m, struct path *path, char *esc) { |