include/linux/ceph/cls_lock_client.h

   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