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
7enum ceph_cls_lock_type {
8	CEPH_CLS_LOCK_NONE = 0,
9	CEPH_CLS_LOCK_EXCLUSIVE = 1,
10	CEPH_CLS_LOCK_SHARED = 2,
11};
12
13struct ceph_locker_id {
14	struct ceph_entity_name name;	/* locker's client name */
15	char *cookie;			/* locker's cookie */
16};
17
18struct ceph_locker_info {
19	struct ceph_entity_addr addr;	/* locker's address */
20};
21
22struct ceph_locker {
23	struct ceph_locker_id id;
24	struct ceph_locker_info info;
25};
26
27int 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);
32int 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);
36int 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);
41int 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
47void ceph_free_lockers(struct ceph_locker *lockers, u32 num_lockers);
48
49int 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
55int 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