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authorChristoph Hellwig <hch@lst.de>2017-11-03 10:34:39 -0700
committerDarrick J. Wong <darrick.wong@oracle.com>2017-11-06 11:53:38 -0800
commit41d196f439509fd8b09364ca1ba48194cccc6d6e (patch)
tree99c609c8596448c9ffda8f4b72b1476e2def2cb7 /fs/xfs/libxfs
parent0d045540ed57e68b9ddcf5c325279a7e5ede7bbf (diff)
downloadlinux-41d196f439509fd8b09364ca1ba48194cccc6d6e.tar.bz2
xfs: treat idx as a cursor in xfs_bmap_add_extent_hole_delay
Stop poking before and after the index and just increment or decrement it while doing our operations on it to prepare for a new extent list implementation. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs/libxfs')
-rw-r--r--fs/xfs/libxfs/xfs_bmap.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index c0216e9e2af8..e2d8cbd054fe 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -2584,7 +2584,6 @@ xfs_bmap_add_extent_hole_delay(
* on the left and on the right.
* Merge all three into a single extent record.
*/
- --*idx;
temp = left.br_blockcount + new->br_blockcount +
right.br_blockcount;
@@ -2595,9 +2594,10 @@ xfs_bmap_add_extent_hole_delay(
oldlen);
left.br_startblock = nullstartblock(newlen);
left.br_blockcount = temp;
- xfs_iext_update_extent(ip, state, *idx, &left);
- xfs_iext_remove(ip, *idx + 1, 1, state);
+ xfs_iext_remove(ip, *idx, 1, state);
+ --*idx;
+ xfs_iext_update_extent(ip, state, *idx, &left);
break;
case BMAP_LEFT_CONTIG:
@@ -2606,7 +2606,6 @@ xfs_bmap_add_extent_hole_delay(
* on the left.
* Merge the new allocation with the left neighbor.
*/
- --*idx;
temp = left.br_blockcount + new->br_blockcount;
oldlen = startblockval(left.br_startblock) +
@@ -2615,6 +2614,8 @@ xfs_bmap_add_extent_hole_delay(
oldlen);
left.br_blockcount = temp;
left.br_startblock = nullstartblock(newlen);
+
+ --*idx;
xfs_iext_update_extent(ip, state, *idx, &left);
break;