From a30561a9be69d446d8d542a4f9735fe5ca9573df Mon Sep 17 00:00:00 2001 From: Christian Brauner Date: Tue, 24 Oct 2023 15:01:10 +0200 Subject: bdev: add freeze and thaw holder operations Add block device freeze and thaw holder operations. Follow-up patches will implement block device freeze and thaw based on stuct blk_holder_ops. Link: https://lore.kernel.org/r/20231024-vfs-super-freeze-v2-4-599c19f4faac@kernel.org Reviewed-by: Darrick J. Wong Reviewed-by: Jan Kara Signed-off-by: Christian Brauner --- include/linux/blkdev.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include') diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 7a3da7f44afb..1bc776335ff8 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1468,6 +1468,16 @@ struct blk_holder_ops { * Sync the file system mounted on the block device. */ void (*sync)(struct block_device *bdev); + + /* + * Freeze the file system mounted on the block device. + */ + int (*freeze)(struct block_device *bdev); + + /* + * Thaw the file system mounted on the block device. + */ + int (*thaw)(struct block_device *bdev); }; extern const struct blk_holder_ops fs_holder_ops; -- cgit