xfs: use new extent lookup helpers in xfs_reflink_cancel_cow_blocks

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c
index d3cfae8..4e07da3 100644 (file)
--- a/fs/xfs/xfs_reflink.c
+++ b/fs/xfs/xfs_reflink.c
@@ -492,18 +492,15 @@ xfs_reflink_cancel_cow_blocks(
        xfs_fileoff_t                   end_fsb)
 {
        struct xfs_ifork                *ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK);
-       struct xfs_bmbt_irec            got, prev, del;
+       struct xfs_bmbt_irec            got, del;
        xfs_extnum_t                    idx;
        xfs_fsblock_t                   firstfsb;
        struct xfs_defer_ops            dfops;
-       int                             error = 0, eof = 0;
+       int                             error = 0;
 
        if (!xfs_is_reflink_inode(ip))
                return 0;
-
-       xfs_bmap_search_extents(ip, offset_fsb, XFS_COW_FORK, &eof, &idx,
-                       &got, &prev);
-       if (eof)
+       if (!xfs_iext_lookup_extent(ip, ifp, offset_fsb, &idx, &got))
                return 0;
 
        while (got.br_startoff < end_fsb) {
@@ -546,9 +543,8 @@ xfs_reflink_cancel_cow_blocks(
                        xfs_bmap_del_extent_cow(ip, &idx, &got, &del);
                }
 
-               if (++idx >= xfs_iext_count(ifp))
+               if (!xfs_iext_get_extent(ifp, ++idx, &got))
                        break;
-               xfs_bmbt_get_all(xfs_iext_get_ext(ifp, idx), &got);
        }
 
        /* clear tag if cow fork is emptied */