Unverified Commit a30561a9 authored by Christian Brauner's avatar Christian Brauner
Browse files

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: default avatarDarrick J. Wong <djwong@kernel.org>
Reviewed-by: default avatarJan Kara <jack@suse.cz>
Signed-off-by: default avatarChristian Brauner <brauner@kernel.org>
parent fbcb8f39

include/linux/blkdev.h

+10 −0
Original line number Diff line number Diff line
@@ -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;