+struct dlm_hooks {
+ void *dlm_handle; /* dlm lib related */
+
+ dlm_lshandle_t (*create_lockspace)(const char *name,
+ unsigned int mode);
+ int (*release_lockspace)(const char *name, dlm_lshandle_t ls,
+ int force);
+ int (*ls_lock)(dlm_lshandle_t lockspace, uint32_t mode,
+ struct dlm_lksb *lksb, uint32_t flags,
+ const void *name, unsigned int namelen,
+ uint32_t parent, void (*astaddr) (void *astarg),
+ void *astarg, void (*bastaddr) (void *astarg),
+ void *range);
+ int (*ls_unlock)(dlm_lshandle_t lockspace, uint32_t lkid,
+ uint32_t flags, struct dlm_lksb *lksb,
+ void *astarg);
+ int (*ls_get_fd)(dlm_lshandle_t ls);
+ int (*dispatch)(int fd);
+};
+
+extern int get_cluster_name(char **name);
+extern int is_clustered(struct supertype *st);
+extern int cluster_get_dlmlock(struct supertype *st, int *lockid);
+extern int cluster_release_dlmlock(struct supertype *st, int lockid);
+extern void set_dlm_hooks(void);
+