Commit 008630c1 authored by Yan's avatar Yan Committed by Chris Mason
Browse files

Properly delete csum item in btrfs_truncate_in_trans. 



When 'item_end' is equal to 'inode->i_size',   'found_type' is updated
and current item is skipped. This behavior is correct for extent item,
but incorrect for csum item. For example, there is a csum item with
'offset == 0'. When deleting the inode,  'inode->i_size' is set to 0,
so the csum item isn't deleted.

Signed-off-by: default avatarChris Mason <chris.mason@oracle.com>
parent 34a38218

fs/btrfs/inode.c

+2 −1
Original line number Diff line number Diff line
@@ -611,13 +611,14 @@ static int btrfs_truncate_in_trans(struct btrfs_trans_handle *trans, 
				item_end += btrfs_file_extent_inline_len(leaf,

									 item);

			}

			item_end--;

		}

		if (found_type == BTRFS_CSUM_ITEM_KEY) {

			ret = btrfs_csum_truncate(trans, root, path,

						  inode->i_size);

			BUG_ON(ret);

		}

		if (item_end <= inode->i_size) {

		if (item_end < inode->i_size) {

			if (found_type == BTRFS_DIR_ITEM_KEY) {

				found_type = BTRFS_INODE_ITEM_KEY;

			} else if (found_type == BTRFS_EXTENT_ITEM_KEY) {