1 files changed, 1 insertions, 6 deletions

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index bc2f6ffff3cf..9df50fa8a078 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -424,7 +424,7 @@ static noinline int create_subvol(struct btrfs_root *root,
         uuid_le_gen(&new_uuid);
         memcpy(root_item.uuid, new_uuid.b, BTRFS_UUID_SIZE);
         root_item.otime.sec = cpu_to_le64(cur_time.tv_sec);
-        root_item.otime.nsec = cpu_to_le64(cur_time.tv_nsec);
+        root_item.otime.nsec = cpu_to_le32(cur_time.tv_nsec);
         root_item.ctime = root_item.otime;
         btrfs_set_root_ctransid(&root_item, trans->transid);
         btrfs_set_root_otransid(&root_item, trans->transid);
@@ -664,10 +664,6 @@ static noinline int btrfs_mksubvol(struct path *parent,
         struct dentry *dentry;
         int error;
 
-        error = mnt_want_write(parent->mnt);
-        if (error)
-                return error;
-
         mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT);
 
         dentry = lookup_one_len(name, parent->dentry, namelen);
@@ -703,7 +699,6 @@ out_dput:
         dput(dentry);
 out_unlock:
         mutex_unlock(&dir->i_mutex);
-        mnt_drop_write(parent->mnt);
         return error;
 }