LU-4931 ladvise: Add feature of giving file access advices

[fs/lustre-release.git] / lustre / include / lustre_nodemap.h

diff --git a/lustre/include/lustre_nodemap.h b/lustre/include/lustre_nodemap.h
index 221f8d7..e5b26f7 100644 (file)
--- a/lustre/include/lustre_nodemap.h
+++ b/lustre/include/lustre_nodemap.h
@@ -27,8 +27,9 @@
 #ifndef _LUSTRE_NODEMAP_H
 #define _LUSTRE_NODEMAP_H
 
+#include <lustre/lustre_idl.h>
+
 #define LUSTRE_NODEMAP_NAME "nodemap"
-#define LUSTRE_NODEMAP_NAME_LENGTH 16
 
 #define LUSTRE_NODEMAP_DEFAULT_ID 0
 
@@ -47,6 +48,12 @@ enum nodemap_tree_type {
        NODEMAP_CLIENT_TO_FS,
 };
 
+struct nodemap_pde {
+       char                     npe_name[LUSTRE_NODEMAP_NAME_LENGTH + 1];
+       struct proc_dir_entry   *npe_proc_entry;
+       struct list_head         npe_list_member;
+};
+
 /** The nodemap id 0 will be the default nodemap. It will have a configuration
  * set by the MGS, but no ranges will be allowed as all NIDs that do not map
  * will be added to the default nodemap
@@ -57,10 +64,7 @@ struct lu_nodemap {
        char                     nm_name[LUSTRE_NODEMAP_NAME_LENGTH + 1];
        /* flags to govern nodemap behavior */
        bool                     nmf_trust_client_ids:1,
-                                nmf_allow_root_access:1,
-                                nmf_block_lookups:1,
-                                nmf_hmac_required:1,
-                                nmf_encryption_required:1;
+                                nmf_allow_root_access:1;
        /* unique ID set by MGS */
        unsigned int             nm_id;
        /* nodemap ref counter */
@@ -81,16 +85,24 @@ struct lu_nodemap {
        struct rb_root           nm_fs_to_client_gidmap;
        /* GID map keyed by remote UID */
        struct rb_root           nm_client_to_fs_gidmap;
-       /* proc directory entry */
-       struct proc_dir_entry   *nm_proc_entry;
        /* attached client members of this nodemap */
        struct mutex             nm_member_list_lock;
        struct list_head         nm_member_list;
        /* access by nodemap name */
        struct hlist_node        nm_hash;
+       struct nodemap_pde      *nm_pde_data;
 
-       /* used when unloading nodemaps */
-       struct list_head         nm_list;
+       /* used when loading/unloading nodemaps */
+       struct list_head         nm_list;
+};
+
+/* Store handles to local MGC storage to save config locally. In future
+ * versions of nodemap, mgc will receive the config directly and so this might
+ * not be needed.
+ */
+struct nm_config_file {
+       struct dt_object        *ncf_obj;
+       struct list_head        ncf_list;
 };
 
 void nodemap_activate(const bool value);
@@ -119,4 +131,8 @@ ssize_t nodemap_map_acl(struct lu_nodemap *nodemap, void *buf, size_t size,
 void nodemap_test_nid(lnet_nid_t nid, char *name_buf, size_t name_len);
 __u32 nodemap_test_id(lnet_nid_t nid, enum nodemap_id_type idtype,
                      __u32 client_id);
+struct nm_config_file *nm_config_file_register(const struct lu_env *env,
+                                              struct dt_object *obj);
+void nm_config_file_deregister(const struct lu_env *env,
+                              struct nm_config_file *ncf);
 #endif /* _LUSTRE_NODEMAP_H */