diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/namei.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/fs/namei.c b/fs/namei.c index a5ed0d070a20..0cccb24ac0b7 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -651,7 +651,6 @@ static bool legitimize_links(struct nameidata *nd) */ static int unlazy_walk(struct nameidata *nd, struct dentry *dentry, unsigned seq) { - struct fs_struct *fs = current->fs; struct dentry *parent = nd->path.dentry; BUG_ON(!(nd->flags & LOOKUP_RCU)); @@ -691,13 +690,11 @@ static int unlazy_walk(struct nameidata *nd, struct dentry *dentry, unsigned seq * still valid and get it if required. */ if (nd->root.mnt && !(nd->flags & LOOKUP_ROOT)) { - spin_lock(&fs->lock); - if (unlikely(!path_equal(&nd->root, &fs->root))) { - spin_unlock(&fs->lock); - goto drop_dentry; + if (unlikely(!legitimize_path(nd, &nd->root, nd->root_seq))) { + rcu_read_unlock(); + dput(dentry); + return -ECHILD; } - path_get(&nd->root); - spin_unlock(&fs->lock); } rcu_read_unlock(); |