linux-kernel - [PATCH RFC v3 12/21] xfs: Only free full extents for forcealign

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Date: Mon, 29 Apr 2024 17:47:37 +0000
From: John Garry <john.g.garry@...cle.com>
To: david@...morbit.com, djwong@...nel.org, hch@....de,
        viro@...iv.linux.org.uk, brauner@...nel.org, jack@...e.cz,
        chandan.babu@...cle.com, willy@...radead.org
Cc: axboe@...nel.dk, martin.petersen@...cle.com, linux-kernel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, tytso@....edu, jbongio@...gle.com,
        ojaswin@...ux.ibm.com, ritesh.list@...il.com, mcgrof@...nel.org,
        p.raghav@...sung.com, linux-xfs@...r.kernel.org,
        catherine.hoang@...cle.com, John Garry <john.g.garry@...cle.com>
Subject: [PATCH RFC v3 12/21] xfs: Only free full extents for forcealign

Like we already do for rtvol, only free full extents for forcealign in
xfs_free_file_space().

Signed-off-by: John Garry <john.g.garry@...cle.com>
---
 fs/xfs/xfs_bmap_util.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index f26d1570b9bd..1dd45dfb2811 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c
@@ -847,8 +847,11 @@ xfs_free_file_space(
 	startoffset_fsb = XFS_B_TO_FSB(mp, offset);
 	endoffset_fsb = XFS_B_TO_FSBT(mp, offset + len);
 
-	/* We can only free complete realtime extents. */
-	if (XFS_IS_REALTIME_INODE(ip) && mp->m_sb.sb_rextsize > 1) {
+	/* Free only complete extents. */
+	if (xfs_inode_has_forcealign(ip) && ip->i_extsize > 1) {
+		startoffset_fsb = roundup_64(startoffset_fsb, ip->i_extsize);
+		endoffset_fsb = rounddown_64(endoffset_fsb, ip->i_extsize);
+	} else if (XFS_IS_REALTIME_INODE(ip) && mp->m_sb.sb_rextsize > 1) {
 		startoffset_fsb = xfs_rtb_roundup_rtx(mp, startoffset_fsb);
 		endoffset_fsb = xfs_rtb_rounddown_rtx(mp, endoffset_fsb);
 	}
-- 
2.31.1