[PATCH 02/15] kernfs: use lookup_one_len_unlocked()

From: Al Viro
Date: Fri Apr 15 2016 - 20:55:59 EST


From: Al Viro <viro@xxxxxxxxxxxxxxxxxx>

Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
---
fs/kernfs/mount.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/fs/kernfs/mount.c b/fs/kernfs/mount.c
index b67dbcc..e006d30 100644
--- a/fs/kernfs/mount.c
+++ b/fs/kernfs/mount.c
@@ -120,9 +120,8 @@ struct dentry *kernfs_node_dentry(struct kernfs_node *kn,
kntmp = find_next_ancestor(kn, knparent);
if (WARN_ON(!kntmp))
return ERR_PTR(-EINVAL);
- mutex_lock(&d_inode(dentry)->i_mutex);
- dtmp = lookup_one_len(kntmp->name, dentry, strlen(kntmp->name));
- mutex_unlock(&d_inode(dentry)->i_mutex);
+ dtmp = lookup_one_len_unlocked(kntmp->name, dentry,
+ strlen(kntmp->name));
dput(dentry);
if (IS_ERR(dtmp))
return dtmp;
--
2.8.0.rc3