[PATCH v3 6/8] block/bdev: enable large folio support for large logical block sizes
From: Luis Chamberlain <mcgrof@kernel.org>
Date: 2025-02-21 22:38:30
Also in:
linux-fsdevel, linux-mm, linux-xfs
Subsystem:
block layer, the rest · Maintainers:
Jens Axboe, Linus Torvalds
From: Hannes Reinecke <hare@suse.de> 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> --- block/bdev.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/block/bdev.c b/block/bdev.c
index 9d73a8fbf7f9..8aadf1f23cb4 100644
--- a/block/bdev.c
+++ b/block/bdev.c@@ -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;
--
2.47.2