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qnx4: handle set_blocksize failures

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qnx4 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 <hch@lst.de>
Link: https://patch.msgid.link/20260511071701.2456211-4-hch@lst.de
Acked-by: Anders Larsen <al@alarsen.net>
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
This commit is contained in:
Christoph Hellwig
2026-05-11 09:16:48 +02:00
committed by Christian Brauner
parent a405996f23
commit c7d911ea1c
1 changed files with 2 additions and 1 deletions
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3
fs/qnx4/inode.c
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@@ -202,7 +202,8 @@ static int qnx4_fill_super(struct super_block *s, struct fs_context *fc)
return -ENOMEM;
s->s_fs_info = qs;
sb_set_blocksize(s, QNX4_BLOCK_SIZE);
if (!sb_set_blocksize(s, QNX4_BLOCK_SIZE))
return -EINVAL;
s->s_op = &qnx4_sops;
s->s_magic = QNX4_SUPER_MAGIC;