From 2430e3380936df0b648af720cae624eef035a2d1 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 11 May 2026 09:16:46 +0200 Subject: [PATCH] bfs: handle set_blocksize failures 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 Link: https://patch.msgid.link/20260511071701.2456211-2-hch@lst.de Signed-off-by: Christian Brauner (Amutable) --- 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)