Enable large folio support when the logical block size is larger
than PAGE_SIZE.
Signed-off-by: Hannes Reinecke <hare@xxxxxxx>
---
block/bdev.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/block/bdev.c b/block/bdev.c
index adbcf7af0b56..d5198743401a 100644
--- a/block/bdev.c
+++ b/block/bdev.c
@@ -133,6 +133,9 @@ static void set_init_blocksize(struct block_device *bdev)
bsize <<= 1;
}
bdev->bd_inode->i_blkbits = blksize_bits(bsize);
+ if (bsize > PAGE_SIZE)
+ mapping_set_folio_orders(bdev->bd_inode->i_mapping,
+ get_order(bsize), MAX_ORDER);
}
int set_blocksize(struct block_device *bdev, int size)
@@ -149,6 +152,9 @@ int set_blocksize(struct block_device *bdev, int size)
if (bdev->bd_inode->i_blkbits != blksize_bits(size)) {
sync_blockdev(bdev);
bdev->bd_inode->i_blkbits = blksize_bits(size);
+ if (size > PAGE_SIZE)
+ mapping_set_folio_orders(bdev->bd_inode->i_mapping,
+ get_order(size), MAX_ORDER);
kill_bdev(bdev);
}
return 0;
@@ -425,6 +431,11 @@ void bdev_set_nr_sectors(struct block_device *bdev, sector_t sectors)
void bdev_add(struct block_device *bdev, dev_t dev)
{
+ unsigned int bsize = bdev_logical_block_size(bdev);
+
+ if (bsize > PAGE_SIZE)
+ mapping_set_folio_orders(bdev->bd_inode->i_mapping,
+ get_order(bsize), MAX_ORDER);
bdev->bd_dev = dev;
bdev->bd_inode->i_rdev = dev;
bdev->bd_inode->i_ino = dev;
--
2.35.3
