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Commit 7261009c authored by Yan's avatar Yan Committed by Chris Mason
Browse files

btrfs_drop_extents: handle BTRFS_INODE_REF_KEY types 


It's possible "key.type == BTRFS_INODE_REF_KEY" and "key.offset >= end".

Signed-off-by: default avatarChris Mason <chris.mason@oracle.com>
parent 068fe39f

fs/btrfs/file.c

+4 −3
Original line number Original line Diff line number Diff line
@@ -507,11 +507,12 @@ int btrfs_drop_extents(struct btrfs_trans_handle *trans, 
		slot = path->slots[0];

		slot = path->slots[0];

		ret = 0;

		ret = 0;

		btrfs_item_key_to_cpu(leaf, &key, slot);

		btrfs_item_key_to_cpu(leaf, &key, slot);



		if (btrfs_key_type(&key) == BTRFS_EXTENT_DATA_KEY &&

		if (key.offset >= end || key.objectid != inode->i_ino) {

		    key.offset >= end) {

			goto out;

			goto out;

		}

		}

		if (btrfs_key_type(&key) > BTRFS_EXTENT_DATA_KEY) {

		if (btrfs_key_type(&key) > BTRFS_EXTENT_DATA_KEY ||

		    key.objectid != inode->i_ino) {

			goto out;

			goto out;

		}

		}

		if (recow) {

		if (recow) {