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block/bdev: enable large folio support for large logical block sizes

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Call mapping_set_folio_min_order() when modifying the logical block
size to ensure folios are allocated with the correct size.

Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20250221223823.1680616-7-mcgrof@kernel.org
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Hannes Reinecke 2025-02-21 14:38:21 -08:00 committed by Christian Brauner
parent e59e97d42b
commit 3c20917120
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1 changed files with 3 additions and 0 deletions
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block/bdev.c
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@ -148,6 +148,8 @@ static void set_init_blocksize(struct block_device *bdev)
bsize <<= 1;
}
BD_INODE(bdev)->i_blkbits = blksize_bits(bsize);
mapping_set_folio_min_order(BD_INODE(bdev)->i_mapping,
get_order(bsize));
}
int set_blocksize(struct file *file, int size)
@ -169,6 +171,7 @@ int set_blocksize(struct file *file, int size)
if (inode->i_blkbits != blksize_bits(size)) {
sync_blockdev(bdev);
inode->i_blkbits = blksize_bits(size);
mapping_set_folio_min_order(inode->i_mapping, get_order(size));
kill_bdev(bdev);
}
return 0;