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| author | Al Viro <viro@zeniv.linux.org.uk> | 2015-05-03 21:27:36 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2015-05-10 22:20:08 -0400 |
| commit | 8eff733a45c98f17f254a313859f3b3ed9fc12dc (patch) | |
| tree | 1838dc350ad4a869e6aee82a00d7c9378e228bf1 /fs/namei.c | |
| parent | 939724df56db970bdbaf8abcdc975c51482aba9b (diff) | |
| download | lwn-8eff733a45c98f17f254a313859f3b3ed9fc12dc.tar.gz lwn-8eff733a45c98f17f254a313859f3b3ed9fc12dc.zip | |
link_path_walk: end of nd->depth massage
get rid of orig_depth - we only use it on error exit to tell whether
to stop doing put_link() when depth reaches 0 (call from path_init())
or when it reaches 1 (call from trailing_symlink()). However, in
the latter case the caller would immediately follow with one more
put_link(). Just keep doing it until the depth reaches zero (and
simplify trailing_symlink() as the result).
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/namei.c')
| -rw-r--r-- | fs/namei.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/fs/namei.c b/fs/namei.c index 6febe251b242..d12b16c13f0c 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -1759,7 +1759,6 @@ static inline u64 hash_name(const char *name) static int link_path_walk(const char *name, struct nameidata *nd) { int err; - int orig_depth = nd->depth; while (*name=='/') name++; @@ -1868,7 +1867,7 @@ Walked: } terminate_walk(nd); Err: - while (unlikely(nd->depth > orig_depth)) + while (unlikely(nd->depth)) put_link(nd); return err; OK: @@ -2017,10 +2016,7 @@ static int trailing_symlink(struct nameidata *nd) } nd->inode = nd->path.dentry->d_inode; nd->stack[0].name = NULL; - error = link_path_walk(s, nd); - if (unlikely(error)) - put_link(nd); - return error; + return link_path_walk(s, nd); } static inline int lookup_last(struct nameidata *nd) |