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isofs: handle set_blocksize failures

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isofs 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/20260511071701.2456211-8-hch@lst.de
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
This commit is contained in:
Christoph Hellwig
2026-05-21 13:39:35 +02:00
committed by Christian Brauner
parent 0861182af5
commit 25ef4c4d9f
1 changed files with 2 additions and 1 deletions
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fs/isofs/inode.c
+2 -1
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@@ -818,7 +818,8 @@ root_found:
* entries. By forcing the blocksize in this way, we ensure
* that we will never be required to do this.
*/
sb_set_blocksize(s, orig_zonesize);
if (!sb_set_blocksize(s, orig_zonesize))
goto out_freesbi;
sbi->s_nls_iocharset = NULL;