From 8402752ecf829f67527072151fa680292a519193 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 22 Apr 2015 10:30:08 -0400 Subject: namei: simplify the callers of follow_managed() now that it gets nameidata, no reason to have setting LOOKUP_JUMPED on mountpoint crossing and calling path_put_conditional() on failures done in every caller. Signed-off-by: Al Viro --- fs/namei.c | 32 ++++++++++---------------------- 1 file changed, 10 insertions(+), 22 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 699e093f52b5..b57400ca6a0f 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -1118,7 +1118,11 @@ static int follow_managed(struct path *path, struct nameidata *nd) mntput(path->mnt); if (ret == -EISDIR) ret = 0; - return ret < 0 ? ret : need_mntput; + if (need_mntput) + nd->flags |= LOOKUP_JUMPED; + if (unlikely(ret < 0)) + path_put_conditional(path, nd); + return ret; } int follow_down_one(struct path *path) @@ -1494,14 +1498,9 @@ unlazy: path->mnt = mnt; path->dentry = dentry; err = follow_managed(path, nd); - if (unlikely(err < 0)) { - path_put_conditional(path, nd); - return err; - } - if (err) - nd->flags |= LOOKUP_JUMPED; - *inode = path->dentry->d_inode; - return 0; + if (likely(!err)) + *inode = path->dentry->d_inode; + return err; need_lookup: return 1; @@ -1511,7 +1510,6 @@ need_lookup: static int lookup_slow(struct nameidata *nd, struct path *path) { struct dentry *dentry, *parent; - int err; parent = nd->path.dentry; BUG_ON(nd->inode != parent->d_inode); @@ -1523,14 +1521,7 @@ static int lookup_slow(struct nameidata *nd, struct path *path) return PTR_ERR(dentry); path->mnt = nd->path.mnt; path->dentry = dentry; - err = follow_managed(path, nd); - if (unlikely(err < 0)) { - path_put_conditional(path, nd); - return err; - } - if (err) - nd->flags |= LOOKUP_JUMPED; - return 0; + return follow_managed(path, nd); } static inline int may_lookup(struct nameidata *nd) @@ -3098,10 +3089,7 @@ retry_lookup: error = follow_managed(&path, nd); if (error < 0) - goto exit_dput; - - if (error) - nd->flags |= LOOKUP_JUMPED; + goto out; BUG_ON(nd->flags & LOOKUP_RCU); inode = path.dentry->d_inode; -- cgit v1.2.3-70-g09d2