LXR linux/include/linux/ceph/cls_lock

   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