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ntfs3: handle set_blocksize failures

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ntfs3 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/20260511071701.2456211-10-hch@lst.de
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
This commit is contained in:
Christoph Hellwig
2026-05-11 09:16:54 +02:00
committed by Christian Brauner
parent 38a03dc2bc
commit 24f7d1824b
1 changed files with 6 additions and 2 deletions
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8
fs/ntfs3/super.c
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@@ -1174,7 +1174,10 @@ static int ntfs_init_from_boot(struct super_block *sb, u32 sector_size,
rec->total = cpu_to_le32(sbi->record_size);
((struct ATTRIB *)Add2Ptr(rec, ao))->type = ATTR_END;
sb_set_blocksize(sb, min_t(u32, sbi->cluster_size, PAGE_SIZE));
if (!sb_set_blocksize(sb, min_t(u32, sbi->cluster_size, PAGE_SIZE))) {
err = -EINVAL;
goto out;
}
sbi->block_mask = sb->s_blocksize - 1;
sbi->blocks_per_cluster = sbi->cluster_size >> sb->s_blocksize_bits;
@@ -1225,7 +1228,8 @@ static int ntfs_init_from_boot(struct super_block *sb, u32 sector_size,
/*
* Try alternative boot (last sector)
*/
sb_set_blocksize(sb, block_size);
if (!sb_set_blocksize(sb, block_size))
return -EINVAL;
hint = "Alternative boot";
dev_size = dev_size0; /* restore original size. */
goto read_boot;