[PATCH v2 4/7] xfs: truncate transaction does not modify the inobt

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The truncate transaction does not ever modify the inode btree, but
includes an associated log reservation. Update
xfs_calc_itruncate_reservation() to remove the reservation
associated with inobt updates.

Signed-off-by: Brian Foster <bfoster@xxxxxxxxxx>
---
 fs/xfs/libxfs/xfs_trans_resv.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/fs/xfs/libxfs/xfs_trans_resv.c b/fs/xfs/libxfs/xfs_trans_resv.c
index 173b1bc13ffe..037a1295d289 100644
--- a/fs/xfs/libxfs/xfs_trans_resv.c
+++ b/fs/xfs/libxfs/xfs_trans_resv.c
@@ -232,8 +232,6 @@ xfs_calc_write_reservation(
  *    the super block to reflect the freed blocks: sector size
  *    worst case split in allocation btrees per extent assuming 4 extents:
  *		4 exts * 2 trees * (2 * max depth - 1) * block size
- *    the inode btree: max depth * blocksize
- *    the allocation btrees: 2 trees * (max depth - 1) * block size
  */
 STATIC uint
 xfs_calc_itruncate_reservation(
@@ -245,12 +243,7 @@ xfs_calc_itruncate_reservation(
 				      XFS_FSB_TO_B(mp, 1))),
 		    (xfs_calc_buf_res(9, mp->m_sb.sb_sectsize) +
 		     xfs_calc_buf_res(xfs_allocfree_log_count(mp, 4),
-				      XFS_FSB_TO_B(mp, 1)) +
-		    xfs_calc_buf_res(5, 0) +
-		    xfs_calc_buf_res(xfs_allocfree_log_count(mp, 1),
-				     XFS_FSB_TO_B(mp, 1)) +
-		    xfs_calc_buf_res(2 + mp->m_ialloc_blks +
-				     mp->m_in_maxlevels, 0)));
+				      XFS_FSB_TO_B(mp, 1))));
 }
 
 /*
-- 
2.13.6

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