From: Hannes Reinecke <hare@xxxxxxx>
Call mapping_set_folio_min_order() when modifying the logical block
size to ensure folios are allocated with the correct size.
Signed-off-by: Hannes Reinecke <hare@xxxxxxx>
---
block/bdev.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/block/bdev.c b/block/bdev.c
index 738e3c8457e7..167d82b46781 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)
@@ -170,6 +172,7 @@ 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;
--
2.43.0
