Unverified Commit 3c209171 authored by Hannes Reinecke's avatar Hannes Reinecke Committed by Christian Brauner
Browse files

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



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

Reviewed-by: default avatarLuis Chamberlain <mcgrof@kernel.org>
Reviewed-by: default avatar"Matthew Wilcox (Oracle)" <willy@infradead.org>
Signed-off-by: default avatarHannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20250221223823.1680616-7-mcgrof@kernel.org


Reviewed-by: default avatarJohn Garry <john.g.garry@oracle.com>
Reviewed-by: default avatarHannes Reinecke <hare@suse.de>
Signed-off-by: default avatarChristian Brauner <brauner@kernel.org>
parent e59e97d4

block/bdev.c

+3 −0
Original line number Diff line number Diff line
@@ -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;