Commit 4ab8671c authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Dave Chinner
Browse files

xfs: use new extent lookup helpers in xfs_reflink_end_cow 



Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarBrian Foster <bfoster@redhat.com>
Signed-off-by: default avatarDave Chinner <david@fromorbit.com>
parent df5ab1b5

fs/xfs/xfs_reflink.c

+6 −10
Original line number Diff line number Diff line
@@ -614,13 +614,13 @@ xfs_reflink_end_cow( 
	xfs_off_t			count)

{

	struct xfs_ifork		*ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK);

	struct xfs_bmbt_irec		got, prev, del;

	struct xfs_bmbt_irec		got, del;

	struct xfs_trans		*tp;

	xfs_fileoff_t			offset_fsb;

	xfs_fileoff_t			end_fsb;

	xfs_fsblock_t			firstfsb;

	struct xfs_defer_ops		dfops;

	int				error, eof = 0;

	int				error;

	unsigned int			resblks;

	xfs_filblks_t			rlen;

	xfs_extnum_t			idx;
@@ -644,13 +644,11 @@ xfs_reflink_end_cow( 
	xfs_ilock(ip, XFS_ILOCK_EXCL);

	xfs_trans_ijoin(tp, ip, 0);



	xfs_bmap_search_extents(ip, end_fsb - 1, XFS_COW_FORK, &eof, &idx,

			&got, &prev);



	/* If there is a hole at end_fsb - 1 go to the previous extent */

	if (eof || got.br_startoff > end_fsb) {

	if (!xfs_iext_lookup_extent(ip, ifp, end_fsb - 1, &idx, &got) ||

	    got.br_startoff > end_fsb) {

		ASSERT(idx > 0);

		xfs_bmbt_get_all(xfs_iext_get_ext(ifp, --idx), &got);

		xfs_iext_get_extent(ifp, --idx, &got);

	}



	/* Walk backwards until we're out of the I/O range... */
@@ -698,11 +696,9 @@ xfs_reflink_end_cow( 
		error = xfs_defer_finish(&tp, &dfops, ip);

		if (error)

			goto out_defer;



next_extent:

		if (idx < 0)

		if (!xfs_iext_get_extent(ifp, idx, &got))

			break;

		xfs_bmbt_get_all(xfs_iext_get_ext(ifp, idx), &got);

	}



	error = xfs_trans_commit(tp);