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hpfs: handle set_blocksize failures

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hpfs 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/20260511071701.2456211-3-hch@lst.de
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
This commit is contained in:
Christoph Hellwig 2026-05-11 09:16:47 +02:00 committed by Christian Brauner
parent 2430e33809
commit a405996f23
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GPG Key ID: 91C61BC06578DCA2
1 changed files with 2 additions and 1 deletions
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3
fs/hpfs/super.c
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@ -523,7 +523,8 @@ static int hpfs_fill_super(struct super_block *s, struct fs_context *fc)
hpfs_lock(s);
/*sbi->sb_mounting = 1;*/
sb_set_blocksize(s, 512);
if (!sb_set_blocksize(s, 512))
goto bail0;
sbi->sb_fs_size = -1;
if (!(bootblock = hpfs_map_sector(s, 0, &bh0, 0))) goto bail1;
if (!(superblock = hpfs_map_sector(s, 16, &bh1, 1))) goto bail2;