xfs: use xfs_iext_*_extent helpers in xfs_bmap_split_extent_at

This abstracts the function away from details of the low-level extent
list implementation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

1 files changed, 4 insertions, 16 deletions

diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index 88beac28258e..9b877024c804 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -6253,7 +6253,6 @@ xfs_bmap_split_extent_at(
 {
         int                             whichfork = XFS_DATA_FORK;
         struct xfs_btree_cur            *cur = NULL;
-        struct xfs_bmbt_rec_host        *gotp;
         struct xfs_bmbt_irec            got;
         struct xfs_bmbt_irec            new; /* split extent */
         struct xfs_mount                *mp = ip->i_mount;
@@ -6285,21 +6284,10 @@ xfs_bmap_split_extent_at(
         }
 
         /*
-         * gotp can be null in 2 cases: 1) if there are no extents
-         * or 2) split_fsb lies in a hole beyond which there are
-         * no extents. Either way, we are done.
+         * If there are not extents, or split_fsb lies in a hole we are done.
          */
-        gotp = xfs_iext_bno_to_ext(ifp, split_fsb, &current_ext);
-        if (!gotp)
-                return 0;
-
-        xfs_bmbt_get_all(gotp, &got);
-
-        /*
-         * Check split_fsb lies in a hole or the start boundary offset
-         * of the extent.
-         */
-        if (got.br_startoff >= split_fsb)
+        if (!xfs_iext_lookup_extent(ip, ifp, split_fsb, &current_ext, &got) ||
+            got.br_startoff >= split_fsb)
                 return 0;
 
         gotblkcnt = split_fsb - got.br_startoff;
@@ -6322,8 +6310,8 @@ xfs_bmap_split_extent_at(
                 XFS_WANT_CORRUPTED_GOTO(mp, i == 1, del_cursor);
         }
 
-        xfs_bmbt_set_blockcount(gotp, gotblkcnt);
         got.br_blockcount = gotblkcnt;
+        xfs_iext_update_extent(ifp, current_ext, &got);
 
         logflags = XFS_ILOG_CORE;
         if (cur) {