[PATCH 01/10] bfs: handle set_blocksize failures

Christoph Hellwig <[email protected]> Mon, 11 May 2026 09:16:46 +0200
Newsgroups dev.linux.lists.ntfs3,org.kernel.vger.linux-fsdevel
Message-ID <[email protected]>
bfs uses buffer_heads, which don't handle block size > PAGE_SIZE well.
Without this, mounting will hit the

	BUG_ON(offset >= folio_size(folio));

in folio_set_bh on the first __bread_gfp call.

Signed-off-by: Christoph Hellwig <[email protected]>
---
 fs/bfs/inode.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c
index 19e49c8cf750..9c3e90390824 100644
--- a/fs/bfs/inode.c
+++ b/fs/bfs/inode.c
@@ -346,7 +346,8 @@ static int bfs_fill_super(struct super_block *s, struct fs_context *fc)
 	s->s_time_min = 0;
 	s->s_time_max = U32_MAX;
 
-	sb_set_blocksize(s, BFS_BSIZE);
+	if (!sb_set_blocksize(s, BFS_BSIZE))
+		goto out;
 
 	sbh = sb_bread(s, 0);
 	if (!sbh)
-- 
2.53.0