1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef LINUX_PR_H 2 #ifndef LINUX_PR_H
3 #define LINUX_PR_H 3 #define LINUX_PR_H
4 4
5 #include <uapi/linux/pr.h> 5 #include <uapi/linux/pr.h>
6 6
7 struct pr_keys { <<
8 u32 generation; <<
9 u32 num_keys; <<
10 u64 keys[]; <<
11 }; <<
12 <<
13 struct pr_held_reservation { <<
14 u64 key; <<
15 u32 generation; <<
16 enum pr_type type; <<
17 }; <<
18 <<
19 struct pr_ops { 7 struct pr_ops {
20 int (*pr_register)(struct block_device 8 int (*pr_register)(struct block_device *bdev, u64 old_key, u64 new_key,
21 u32 flags); 9 u32 flags);
22 int (*pr_reserve)(struct block_device 10 int (*pr_reserve)(struct block_device *bdev, u64 key,
23 enum pr_type type, u32 11 enum pr_type type, u32 flags);
24 int (*pr_release)(struct block_device 12 int (*pr_release)(struct block_device *bdev, u64 key,
25 enum pr_type type); 13 enum pr_type type);
26 int (*pr_preempt)(struct block_device 14 int (*pr_preempt)(struct block_device *bdev, u64 old_key, u64 new_key,
27 enum pr_type type, boo 15 enum pr_type type, bool abort);
28 int (*pr_clear)(struct block_device *b 16 int (*pr_clear)(struct block_device *bdev, u64 key);
29 /* <<
30 * pr_read_keys - Read the registered <<
31 * pr_keys->keys array. The keys array <<
32 * end of the pr_keys struct, and pr_k <<
33 * number of keys the array can hold. <<
34 * in the array, success will still be <<
35 * will reflect the total number of ke <<
36 * caller can retry with a larger arra <<
37 */ <<
38 int (*pr_read_keys)(struct block_devic <<
39 struct pr_keys *keys_i <<
40 int (*pr_read_reservation)(struct bloc <<
41 struct pr_held_reserva <<
42 }; 17 };
43 18
44 #endif /* LINUX_PR_H */ 19 #endif /* LINUX_PR_H */
45 20
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