Subject: linux-next: build failure after merge of the btrfs tree

From: Stephen Rothwell <[email-masked]>
Date: Thu, 18 Dec 2025 09:26:55 +1100

Hi all,

After merging the btrfs tree, today's linux-next build (powerpc
ppc64_defconfig) failed like this:

In file included from fs/btrfs/disk-io.h:12,
                 from fs/btrfs/super.c:34:
fs/btrfs/bio.h:100:14: error: duplicate member 'can_use_append'
  100 |         bool can_use_append;
      |              ^~~~~~~~~~~~~~

(and several others similar)

Caused by commits

  a9e53c29f361 ("btrfs: shrink the size of btrfs_bio")
  009334649b08 ("btrfs: zoned: don't zone append to conventional zone")

interacting with commit

  ad93f92010a1 ("btrfs: zoned: don't zone append to conventional zone")

from the btrfs-fixes tree.

I applied the following merge fix patch for today, but please clean up
your trees.

From: Stephen Rothwell <[email-masked]>
Date: Thu, 18 Dec 2025 09:21:11 +1100
Subject: [PATCH] fix up for "btrfs: shrink the size of btrfs_bio"

interacting with commit

  ad93f92010a1 ("btrfs: zoned: don't zone append to conventional zone")

from the btrfs-fixes tree.

Signed-off-by: Stephen Rothwell <[email-masked]>
---
 fs/btrfs/bio.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/fs/btrfs/bio.h b/fs/btrfs/bio.h
index 4d0f416a8be0..157cdfa2f78a 100644
--- a/fs/btrfs/bio.h
+++ b/fs/btrfs/bio.h
@@ -96,9 +96,6 @@ struct btrfs_bio {
 	/* Whether the bio is written using zone append. */
 	bool can_use_append:1;
 
-	/* Whether the bio is written using zone append. */
-	bool can_use_append;
-
 	/*
 	 * This member must come last, bio_alloc_bioset will allocate enough
 	 * bytes for entire btrfs_bio but relies on bio being last.
-- 
2.52.0

-- 
Cheers,
Stephen Rothwell