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befs: handle set_blocksize failures

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befs uses buffer_heads, which don't handle block size > PAGE_SIZE well.
Without this, mounting we 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/20260511071701.2456211-6-hch@lst.de
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
This commit is contained in:
Christoph Hellwig 2026-05-11 09:16:50 +02:00 committed by Christian Brauner
parent 05107f5602
commit 7597d42a25
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1 changed files with 2 additions and 1 deletions
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3
fs/befs/linuxvfs.c
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@ -860,7 +860,8 @@ befs_fill_super(struct super_block *sb, struct fs_context *fc)
*/
sb->s_magic = BEFS_SUPER_MAGIC;
/* Set real blocksize of fs */
sb_set_blocksize(sb, (ulong) befs_sb->block_size);
if (!sb_set_blocksize(sb, (ulong) befs_sb->block_size))
goto unacquire_priv_sbp;
sb->s_op = &befs_sops;
sb->s_export_op = &befs_export_operations;
sb->s_time_min = 0;