[PATCH v2 08/13] xfs: Do not free EOF blocks for forcealign

John Garry
2024-07-05T16:25:29Z

For when forcealign is enabled, we want the EOF to be aligned as well, so
do not free EOF blocks.

Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: John Garry <john.g.garry@oracle.com>
---
fs/xfs/xfs_bmap_util.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index fe2e2c930975..b9f8093ae78c 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c
@@ -537,8 +537,13 @@ xfs_can_free_eofblocks(
* forever.
*/
end_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)XFS_ISIZE(ip));
- if (xfs_inode_has_bigrtalloc(ip))
+
+ /* Only try to free beyond the allocation unit that crosses EOF */
+ if (xfs_inode_has_forcealign(ip))
+ end_fsb = roundup_64(end_fsb, ip->i_extsize);
+ else if (xfs_inode_has_bigrtalloc(ip))
end_fsb = xfs_rtb_roundup_rtx(mp, end_fsb);
+
last_fsb = XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes);
if (last_fsb <= end_fsb)
return false;
--
2.31.1