FAILED: Patch "xfs: fix remote xattr valuelblk check" failed to apply to 5.15-stable tree

[Sasha Levin <sashal@kernel.org>]

The patch below does not apply to the 5.15-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

Thanks,
Sasha

------------------ original commit in Linus's tree ------------------

From bd3138e8912c9db182eac5fed1337645a98b7a4f Mon Sep 17 00:00:00 2001
From: "Darrick J. Wong" <djwong@kernel.org>
Date: Fri, 23 Jan 2026 09:27:33 -0800
Subject: [PATCH] xfs: fix remote xattr valuelblk check

In debugging other problems with generic/753, it turns out that it's
possible for the system go to down in the middle of a remote xattr set
operation such that the leaf block entry is marked incomplete and
valueblk is set to zero.  Make this no longer a failure.

Cc: <stable@vger.kernel.org> # v4.15
Fixes: 13791d3b833428 ("xfs: scrub extended attribute leaf space")
Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
 fs/xfs/scrub/attr.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/xfs/scrub/attr.c b/fs/xfs/scrub/attr.c
index a397c50b77943..c3c122ea2d322 100644
--- a/fs/xfs/scrub/attr.c
+++ b/fs/xfs/scrub/attr.c
@@ -338,7 +338,10 @@ xchk_xattr_entry(
 		rentry = xfs_attr3_leaf_name_remote(leaf, idx);
 		namesize = xfs_attr_leaf_entsize_remote(rentry->namelen);
 		name_end = (char *)rentry + namesize;
-		if (rentry->namelen == 0 || rentry->valueblk == 0)
+		if (rentry->namelen == 0)
+			xchk_da_set_corrupt(ds, level);
+		if (rentry->valueblk == 0 &&
+		    !(ent->flags & XFS_ATTR_INCOMPLETE))
 			xchk_da_set_corrupt(ds, level);
 	}
 	if (name_end > buf_end)
-- 
2.51.0