diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index 5b9864c8582e..6108612182e2 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -676,8 +676,17 @@ xfs_file_dio_write_aligned(
 	struct xfs_zone_alloc_ctx *ac)
 {
 	unsigned int		iolock = XFS_IOLOCK_SHARED;
+	unsigned int		dio_flags = 0;
 	ssize_t			ret;
 
+	/*
+	 * For always COW inodes, each bio must be aligned to the file system
+	 * block size and not just the device sector size because we need to
+	 * allocate a block-aligned amount of space for each write.
+	 */
+	if (xfs_is_always_cow_inode(ip))
+		dio_flags |= IOMAP_DIO_FSBLOCK_ALIGNED;
+
 	ret = xfs_ilock_iocb_for_write(iocb, &iolock);
 	if (ret)
 		return ret;
@@ -695,7 +704,7 @@ xfs_file_dio_write_aligned(
 		iolock = XFS_IOLOCK_SHARED;
 	}
 	trace_xfs_file_direct_write(iocb, from);
-	ret = iomap_dio_rw(iocb, from, ops, dops, 0, ac, 0);
+	ret = iomap_dio_rw(iocb, from, ops, dops, dio_flags, ac, 0);
 out_unlock:
 	xfs_iunlock(ip, iolock);
 	return ret;
@@ -892,15 +901,7 @@ xfs_file_dio_write(
 	if ((iocb->ki_pos | count) & target->bt_logical_sectormask)
 		return -EINVAL;
 
-	/*
-	 * For always COW inodes we also must check the alignment of each
-	 * individual iovec segment, as they could end up with different
-	 * I/Os due to the way bio_iov_iter_get_pages works, and we'd
-	 * then overwrite an already written block.
-	 */
-	if (((iocb->ki_pos | count) & ip->i_mount->m_blockmask) ||
-	    (xfs_is_always_cow_inode(ip) &&
-	     (iov_iter_alignment(from) & ip->i_mount->m_blockmask)))
+	if ((iocb->ki_pos | count) & ip->i_mount->m_blockmask)
 		return xfs_file_dio_write_unaligned(ip, iocb, from);
 	if (xfs_is_zoned_inode(ip))
 		return xfs_file_dio_write_zoned(ip, iocb, from);