linux-kernel - [PATCH v3 10/21] xfs: Update xfs_is_falloc

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Date: Mon, 29 Apr 2024 17:47:35 +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 v3 10/21] xfs: Update xfs_is_falloc_aligned() mask for forcealign

For when forcealign is enabled, we want the alignment mask to cover an
aligned extent, similar to rtvol.

Signed-off-by: John Garry <john.g.garry@...cle.com>
---
 fs/xfs/xfs_file.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index 632653e00906..e81e01e6b22b 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -61,7 +61,10 @@ xfs_is_falloc_aligned(
 		}
 		mask = XFS_FSB_TO_B(mp, mp->m_sb.sb_rextsize) - 1;
 	} else {
-		mask = mp->m_sb.sb_blocksize - 1;
+		if (xfs_inode_has_forcealign(ip) && ip->i_extsize > 1)
+			mask = (mp->m_sb.sb_blocksize * ip->i_extsize) - 1;
+		else
+			mask = mp->m_sb.sb_blocksize - 1;
 	}
 
 	return !((pos | len) & mask);
-- 
2.31.1