diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/namei.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/namei.c b/fs/namei.c index 0f02359ce685..14c73edca9ce 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -479,6 +479,14 @@ static int nameidata_dentry_drop_rcu(struct nameidata *nd, struct dentry *dentry struct fs_struct *fs = current->fs; struct dentry *parent = nd->path.dentry; + /* + * It can be possible to revalidate the dentry that we started + * the path walk with. force_reval_path may also revalidate the + * dentry already committed to the nameidata. + */ + if (unlikely(parent == dentry)) + return nameidata_drop_rcu(nd); + BUG_ON(!(nd->flags & LOOKUP_RCU)); if (nd->root.mnt) { spin_lock(&fs->lock); |