For forcealign enabled, the allocation unit size is in ip->i_extsize, and this must never be zero. Signed-off-by: John Garry <john.g.garry@xxxxxxxxxx> --- fs/xfs/xfs_inode.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index 994fb7e184d9..cd07b15478ac 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -4299,6 +4299,8 @@ xfs_inode_alloc_unitsize( { unsigned int blocks = 1; + if (xfs_inode_has_forcealign(ip)) + return ip->i_extsize; if (XFS_IS_REALTIME_INODE(ip)) blocks = ip->i_mount->m_sb.sb_rextsize; -- 2.31.1