ceph: add d_drop for some error cases in ceph_mknod()

When file num exceeds quota limit or fails from ceph_per_init_acls()
should call d_drop to drop dentry from cache as well.

Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

1 files changed, 5 insertions, 3 deletions

diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 036ac0f3a393..4b6a49fd2a61 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -827,12 +827,14 @@ static int ceph_mknod(struct inode *dir, struct dentry *dentry,
         if (ceph_snap(dir) != CEPH_NOSNAP)
                 return -EROFS;
 
-        if (ceph_quota_is_max_files_exceeded(dir))
-                return -EDQUOT;
+        if (ceph_quota_is_max_files_exceeded(dir)) {
+                err = -EDQUOT;
+                goto out;
+        }
 
         err = ceph_pre_init_acls(dir, &mode, &acls);
         if (err < 0)
-                return err;
+                goto out;
 
         dout("mknod in dir %p dentry %p mode 0%ho rdev %d\n",
              dir, dentry, mode, rdev);