linux/ceph/cls_lock_client.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #ifndef _LINUX_CEPH_CLS_LOCK_CLIENT_H
0003 #define _LINUX_CEPH_CLS_LOCK_CLIENT_H
0004
0005 #include <linux/ceph/osd_client.h>
0006
0007 enum ceph_cls_lock_type {
0008     CEPH_CLS_LOCK_NONE = 0,
0009     CEPH_CLS_LOCK_EXCLUSIVE = 1,
0010     CEPH_CLS_LOCK_SHARED = 2,
0011 };
0012
0013 struct ceph_locker_id {
0014     struct ceph_entity_name name;   /* locker's client name */
0015     char *cookie;           /* locker's cookie */
0016 };
0017
0018 struct ceph_locker_info {
0019     struct ceph_entity_addr addr;   /* locker's address */
0020 };
0021
0022 struct ceph_locker {
0023     struct ceph_locker_id id;
0024     struct ceph_locker_info info;
0025 };
0026
0027 int ceph_cls_lock(struct ceph_osd_client *osdc,
0028           struct ceph_object_id *oid,
0029           struct ceph_object_locator *oloc,
0030           char *lock_name, u8 type, char *cookie,
0031           char *tag, char *desc, u8 flags);
0032 int ceph_cls_unlock(struct ceph_osd_client *osdc,
0033             struct ceph_object_id *oid,
0034             struct ceph_object_locator *oloc,
0035             char *lock_name, char *cookie);
0036 int ceph_cls_break_lock(struct ceph_osd_client *osdc,
0037             struct ceph_object_id *oid,
0038             struct ceph_object_locator *oloc,
0039             char *lock_name, char *cookie,
0040             struct ceph_entity_name *locker);
0041 int ceph_cls_set_cookie(struct ceph_osd_client *osdc,
0042             struct ceph_object_id *oid,
0043             struct ceph_object_locator *oloc,
0044             char *lock_name, u8 type, char *old_cookie,
0045             char *tag, char *new_cookie);
0046
0047 void ceph_free_lockers(struct ceph_locker *lockers, u32 num_lockers);
0048
0049 int ceph_cls_lock_info(struct ceph_osd_client *osdc,
0050                struct ceph_object_id *oid,
0051                struct ceph_object_locator *oloc,
0052                char *lock_name, u8 *type, char **tag,
0053                struct ceph_locker **lockers, u32 *num_lockers);
0054
0055 int ceph_cls_assert_locked(struct ceph_osd_request *req, int which,
0056                char *lock_name, u8 type, char *cookie, char *tag);
0057
0058 #endif