btrfs: remove redundant name and name_len parameters to create_subvol

The passed dentry already contains the name.

Reviewed-by: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 777801902511e8f756780b6a321d9b6341425b96..4a015579a46ec516e5426f2c2dd8794a209f89e2 100644 (file)
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -546,9 +546,10 @@ int __pure btrfs_is_empty_uuid(u8 *uuid)
 
 static noinline int create_subvol(struct user_namespace *mnt_userns,
                                  struct inode *dir, struct dentry *dentry,
-                                 const char *name, int namelen,
                                  struct btrfs_qgroup_inherit *inherit)
 {
+       const char *name = dentry->d_name.name;
+       int namelen = dentry->d_name.len;
        struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb);
        struct btrfs_trans_handle *trans;
        struct btrfs_key key;
@@ -980,7 +981,7 @@ static noinline int btrfs_mksubvol(const struct path *parent,
        if (snap_src)
                error = create_snapshot(snap_src, dir, dentry, readonly, inherit);
        else
-               error = create_subvol(mnt_userns, dir, dentry, name, namelen, inherit);
+               error = create_subvol(mnt_userns, dir, dentry, inherit);
 
        if (!error)
                fsnotify_mkdir(dir, dentry);