diff mbox series

[v2,6/8] block/bdev: enable large folio support for large logical block sizes

Message ID 20250204231209.429356-7-mcgrof@kernel.org (mailing list archive)
State New
Headers show
Series enable bs > ps for block devices | expand

Commit Message

Luis Chamberlain Feb. 4, 2025, 11:12 p.m. UTC 
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.

Signed-off-by: Hannes Reinecke <hare@suse.de>
---
 block/bdev.c | 3 +++
 1 file changed, 3 insertions(+)

Comments

Matthew Wilcox Feb. 17, 2025, 9:59 p.m. UTC | #1 
On Tue, Feb 04, 2025 at 03:12:07PM -0800, Luis Chamberlain wrote:
> 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.
> 
> Signed-off-by: Hannes Reinecke <hare@suse.de>

Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
diff mbox series

Patch

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;