xref: /linux/drivers/md/md-cluster.h (revision a1ff5a7d78a036d6c2178ee5acd6ba4946243800)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 
3 
4 #ifndef _MD_CLUSTER_H
5 #define _MD_CLUSTER_H
6 
7 #include "md.h"
8 
9 struct mddev;
10 struct md_rdev;
11 
12 struct md_cluster_operations {
13 	int (*join)(struct mddev *mddev, int nodes);
14 	int (*leave)(struct mddev *mddev);
15 	int (*slot_number)(struct mddev *mddev);
16 	int (*resync_info_update)(struct mddev *mddev, sector_t lo, sector_t hi);
17 	int (*resync_start_notify)(struct mddev *mddev);
18 	int (*resync_status_get)(struct mddev *mddev);
19 	void (*resync_info_get)(struct mddev *mddev, sector_t *lo, sector_t *hi);
20 	int (*metadata_update_start)(struct mddev *mddev);
21 	int (*metadata_update_finish)(struct mddev *mddev);
22 	void (*metadata_update_cancel)(struct mddev *mddev);
23 	int (*resync_start)(struct mddev *mddev);
24 	int (*resync_finish)(struct mddev *mddev);
25 	int (*area_resyncing)(struct mddev *mddev, int direction, sector_t lo, sector_t hi);
26 	int (*add_new_disk)(struct mddev *mddev, struct md_rdev *rdev);
27 	void (*add_new_disk_cancel)(struct mddev *mddev);
28 	int (*new_disk_ack)(struct mddev *mddev, bool ack);
29 	int (*remove_disk)(struct mddev *mddev, struct md_rdev *rdev);
30 	void (*load_bitmaps)(struct mddev *mddev, int total_slots);
31 	int (*gather_bitmaps)(struct md_rdev *rdev);
32 	int (*resize_bitmaps)(struct mddev *mddev, sector_t newsize, sector_t oldsize);
33 	int (*lock_all_bitmaps)(struct mddev *mddev);
34 	void (*unlock_all_bitmaps)(struct mddev *mddev);
35 	void (*update_size)(struct mddev *mddev, sector_t old_dev_sectors);
36 };
37 
38 #endif /* _MD_CLUSTER_H */
39