From: Darrick J. Wong <djwong@kernel.org>
Date: Thu, 22 Feb 2024 20:45:00 +0000 (-0800)
Subject: xfs: xfs_bmap_finish_one should map unwritten extents properly
X-Git-Tag: v6.9-rc1~129^2~8^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=6c8127e93e3ac9c2cf6a13b885dd2d057b7e7d50;p=thirdparty%2Flinux.git

xfs: xfs_bmap_finish_one should map unwritten extents properly

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>
---

diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index 8d62fd626be51..d78e02a3b4d62 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -6245,6 +6245,8 @@ 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);