From 409e07e5198b8e3323e9ae5cb7e5f45d48b12d66 Mon Sep 17 00:00:00 2001
From: "Darrick J. Wong" <djwong@kernel.org>
Date: Mon, 22 Apr 2024 10:01:13 -0700
Subject: [PATCH] xfs: xfs_bmap_finish_one should map unwritten extents
 properly

Source kernel commit: 6c8127e93e3ac9c2cf6a13b885dd2d057b7e7d50

The deferred bmap work state and the log item can transmit unwritten
state, so the XFS_BMAP_MAP handler must map in extents with that
unwritten state.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
---
 libxfs/xfs_bmap.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libxfs/xfs_bmap.c b/libxfs/xfs_bmap.c
index f09ec3df..70476c54 100644
--- a/libxfs/xfs_bmap.c
+++ b/libxfs/xfs_bmap.c
@@ -6239,6 +6239,8 @@ xfs_bmap_finish_one(
 
 	switch (bi->bi_type) {
 	case XFS_BMAP_MAP:
+		if (bi->bi_bmap.br_state == XFS_EXT_UNWRITTEN)
+			flags |= XFS_BMAPI_PREALLOC;
 		error = xfs_bmapi_remap(tp, bi->bi_owner, bmap->br_startoff,
 				bmap->br_blockcount, bmap->br_startblock,
 				flags);
-- 
2.47.3