LU-3527 nodemap: add NID range management

[fs/lustre-release.git] / lustre / nodemap / nodemap_internal.h

diff --git a/lustre/nodemap/nodemap_internal.h b/lustre/nodemap/nodemap_internal.h
index 77dbb27..7e55136 100644 (file)
--- a/lustre/nodemap/nodemap_internal.h
+++ b/lustre/nodemap/nodemap_internal.h
@@ -28,6 +28,7 @@
 #define _NODEMAP_INTERNAL_H
 
 #include <lustre_nodemap.h>
+#include <interval_tree.h>
 
 #define MODULE_STRING "nodemap"
 
@@ -43,8 +44,29 @@ extern struct proc_dir_entry *proc_lustre_nodemap_root;
 /* flag if nodemap is active */
 extern bool nodemap_idmap_active;
 
+struct lu_nid_range {
+       /* unique id set my mgs */
+       unsigned int             rn_id;
+       /* lu_nodemap containing this range */
+       struct lu_nodemap       *rn_nodemap;
+       /* list for nodemap */
+       struct list_head         rn_list;
+       /* nid interval tree */
+       struct interval_node     rn_node;
+};
+
 int nodemap_procfs_init(void);
 int lprocfs_nodemap_register(const char *name, bool is_default_nodemap,
                             struct lu_nodemap *nodemap);
+struct lu_nid_range *range_create(lnet_nid_t min, lnet_nid_t max,
+                                 struct lu_nodemap *nodemap);
+void range_destroy(struct lu_nid_range *range);
+int range_insert(struct lu_nid_range *data);
+void range_delete(struct lu_nid_range *data);
+struct lu_nid_range *range_search(lnet_nid_t nid);
+struct lu_nid_range *range_find(lnet_nid_t start_nid, lnet_nid_t end_nid);
+int range_parse_nidstring(char *range_string, lnet_nid_t *start_nid,
+                         lnet_nid_t *end_nid);
+void range_init_tree(void);
 int nodemap_cleanup_nodemaps(void);
 #endif  /* _NODEMAP_INTERNAL_H */