1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _LINUX_CEPH_CLS_LOCK_CLIENT_H
3 #define _LINUX_CEPH_CLS_LOCK_CLIENT_H
4
5 #include <linux/ceph/osd_client.h>
6
7 enum ceph_cls_lock_type {
8 CEPH_CLS_LOCK_NONE = 0,
9 CEPH_CLS_LOCK_EXCLUSIVE = 1,
10 CEPH_CLS_LOCK_SHARED = 2,
11 };
12
13 struct ceph_locker_id {
14 struct ceph_entity_name name; /* locker's client name */
15 char *cookie; /* locker's cookie */
16 };
17
18 struct ceph_locker_info {
19 struct ceph_entity_addr addr; /* locker's address */
20 };
21
22 struct ceph_locker {
23 struct ceph_locker_id id;
24 struct ceph_locker_info info;
25 };
26
27 int ceph_cls_lock(struct ceph_osd_client *osdc,
28 struct ceph_object_id *oid,
29 struct ceph_object_locator *oloc,
30 char *lock_name, u8 type, char *cookie,
31 char *tag, char *desc, u8 flags);
32 int ceph_cls_unlock(struct ceph_osd_client *osdc,
33 struct ceph_object_id *oid,
34 struct ceph_object_locator *oloc,
35 char *lock_name, char *cookie);
36 int ceph_cls_break_lock(struct ceph_osd_client *osdc,
37 struct ceph_object_id *oid,
38 struct ceph_object_locator *oloc,
39 char *lock_name, char *cookie,
40 struct ceph_entity_name *locker);
41 int ceph_cls_set_cookie(struct ceph_osd_client *osdc,
42 struct ceph_object_id *oid,
43 struct ceph_object_locator *oloc,
44 char *lock_name, u8 type, char *old_cookie,
45 char *tag, char *new_cookie);
46
47 void ceph_free_lockers(struct ceph_locker *lockers, u32 num_lockers);
48
49 int ceph_cls_lock_info(struct ceph_osd_client *osdc,
50 struct ceph_object_id *oid,
51 struct ceph_object_locator *oloc,
52 char *lock_name, u8 *type, char **tag,
53 struct ceph_locker **lockers, u32 *num_lockers);
54
55 int ceph_cls_assert_locked(struct ceph_osd_request *req, int which,
56 char *lock_name, u8 type, char *cookie, char *tag);
57
58 #endif
59
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