diff --git a/[refs] b/[refs] index def7ece364a1..241b9b656d44 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: f75ba3ade8a4599d67040a9493d75a864e7b329c +refs/heads/master: 051d381259eb57d6074d02a6ba6e90e744f1a29f diff --git a/trunk/fs/namei.c b/trunk/fs/namei.c index 98dc2e134362..22f6e8d16aa8 100644 --- a/trunk/fs/namei.c +++ b/trunk/fs/namei.c @@ -546,6 +546,22 @@ struct path { struct dentry *dentry; }; +static inline void dput_path(struct path *path, struct nameidata *nd) +{ + dput(path->dentry); + if (path->mnt != nd->mnt) + mntput(path->mnt); +} + +static inline void path_to_nameidata(struct path *path, struct nameidata *nd) +{ + dput(nd->dentry); + if (nd->mnt != path->mnt) + mntput(nd->mnt); + nd->mnt = path->mnt; + nd->dentry = path->dentry; +} + static __always_inline int __do_follow_link(struct path *path, struct nameidata *nd) { int error; @@ -555,8 +571,11 @@ static __always_inline int __do_follow_link(struct path *path, struct nameidata touch_atime(path->mnt, dentry); nd_set_link(nd, NULL); - if (path->mnt == nd->mnt) - mntget(path->mnt); + if (path->mnt != nd->mnt) { + path_to_nameidata(path, nd); + dget(dentry); + } + mntget(path->mnt); cookie = dentry->d_inode->i_op->follow_link(dentry, nd); error = PTR_ERR(cookie); if (!IS_ERR(cookie)) { @@ -573,22 +592,6 @@ static __always_inline int __do_follow_link(struct path *path, struct nameidata return error; } -static inline void dput_path(struct path *path, struct nameidata *nd) -{ - dput(path->dentry); - if (path->mnt != nd->mnt) - mntput(path->mnt); -} - -static inline void path_to_nameidata(struct path *path, struct nameidata *nd) -{ - dput(nd->dentry); - if (nd->mnt != path->mnt) - mntput(nd->mnt); - nd->mnt = path->mnt; - nd->dentry = path->dentry; -} - /* * This limits recursive symlink follows to 8, while * limiting consecutive symlinks to 40.