btrfs: pass btrfs_inode to btrfs_inode_by_name

The function is for internal interfaces so we should use the
btrfs_inode.
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/inode.c

@@ -5565,12 +5565,12 @@ void btrfs_evict_inode(struct inode *inode)
  * If no dir entries were found, returns -ENOENT.
  * If found a corrupted location in dir entry, returns -EUCLEAN.
  */
-static int btrfs_inode_by_name(struct inode *dir, struct dentry *dentry,
+static int btrfs_inode_by_name(struct btrfs_inode *dir, struct dentry *dentry,
 			       struct btrfs_key *location, u8 *type)
 {
 	struct btrfs_dir_item *di;
 	struct btrfs_path *path;
-	struct btrfs_root *root = BTRFS_I(dir)->root;
+	struct btrfs_root *root = dir->root;
 	int ret = 0;
 	struct fscrypt_name fname;
 
@@ -5578,13 +5578,13 @@ static int btrfs_inode_by_name(struct inode *dir, struct dentry *dentry,
 	if (!path)
 		return -ENOMEM;
 
-	ret = fscrypt_setup_filename(dir, &dentry->d_name, 1, &fname);
+	ret = fscrypt_setup_filename(&dir->vfs_inode, &dentry->d_name, 1, &fname);
 	if (ret)
 		goto out;
 
 	/* This needs to handle no-key deletions later on */
 
-	di = btrfs_lookup_dir_item(NULL, root, path, btrfs_ino(BTRFS_I(dir)),
+	di = btrfs_lookup_dir_item(NULL, root, path, btrfs_ino(dir),
 				   &fname.disk_name, 0);
 	if (IS_ERR_OR_NULL(di)) {
 		ret = di ? PTR_ERR(di) : -ENOENT;
@@ -5597,7 +5597,7 @@ static int btrfs_inode_by_name(struct inode *dir, struct dentry *dentry,
 		ret = -EUCLEAN;
 		btrfs_warn(root->fs_info,
 "%s gets something invalid in DIR_ITEM (name %s, directory ino %llu, location(%llu %u %llu))",
-			   __func__, fname.disk_name.name, btrfs_ino(BTRFS_I(dir)),
+			   __func__, fname.disk_name.name, btrfs_ino(dir),
 			   location->objectid, location->type, location->offset);
 	}
 	if (!ret)
@@ -5881,7 +5881,7 @@ struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry)
 	if (dentry->d_name.len > BTRFS_NAME_LEN)
 		return ERR_PTR(-ENAMETOOLONG);
 
-	ret = btrfs_inode_by_name(dir, dentry, &location, &di_type);
+	ret = btrfs_inode_by_name(BTRFS_I(dir), dentry, &location, &di_type);
 	if (ret < 0)
 		return ERR_PTR(ret);