[IPV4] route cache: Introduce rt_genid for smooth cache invalidation

[net-next-2.6.git] / include / linux / sysctl.h

diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 4f5047df8a9efbf6672c31883222f902f5ee6c8b..bf4ae4e138f747d79c2903b7a09771f5145112c4 100644 (file)
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -440,8 +440,8 @@ enum
 
 enum {
        NET_IPV4_ROUTE_FLUSH=1,
-       NET_IPV4_ROUTE_MIN_DELAY=2,
-       NET_IPV4_ROUTE_MAX_DELAY=3,
+       NET_IPV4_ROUTE_MIN_DELAY=2, /* obsolete since 2.6.25 */
+       NET_IPV4_ROUTE_MAX_DELAY=3, /* obsolete since 2.6.25 */
        NET_IPV4_ROUTE_GC_THRESH=4,
        NET_IPV4_ROUTE_MAX_SIZE=5,
        NET_IPV4_ROUTE_GC_MIN_INTERVAL=6,
@@ -945,7 +945,10 @@ enum
 
 /* For the /proc/sys support */
 struct ctl_table;
+struct nsproxy;
 extern struct ctl_table_header *sysctl_head_next(struct ctl_table_header *prev);
+extern struct ctl_table_header *__sysctl_head_next(struct nsproxy *namespaces,
+                                               struct ctl_table_header *prev);
 extern void sysctl_head_finish(struct ctl_table_header *prev);
 extern int sysctl_perm(struct ctl_table *table, int op);
 
@@ -1049,6 +1052,13 @@ struct ctl_table
        void *extra2;
 };
 
+struct ctl_table_root {
+       struct list_head root_list;
+       struct list_head header_list;
+       struct list_head *(*lookup)(struct ctl_table_root *root,
+                                          struct nsproxy *namespaces);
+};
+
 /* struct ctl_table_header is used to maintain dynamic lists of
    struct ctl_table trees. */
 struct ctl_table_header
@@ -1057,12 +1067,26 @@ struct ctl_table_header
        struct list_head ctl_entry;
        int used;
        struct completion *unregistering;
+       struct ctl_table *ctl_table_arg;
+       struct ctl_table_root *root;
+};
+
+/* struct ctl_path describes where in the hierarchy a table is added */
+struct ctl_path {
+       const char *procname;
+       int ctl_name;
 };
 
+void register_sysctl_root(struct ctl_table_root *root);
+struct ctl_table_header *__register_sysctl_paths(
+       struct ctl_table_root *root, struct nsproxy *namespaces,
+       const struct ctl_path *path, struct ctl_table *table);
 struct ctl_table_header *register_sysctl_table(struct ctl_table * table);
+struct ctl_table_header *register_sysctl_paths(const struct ctl_path *path,
+                                               struct ctl_table *table);
 
 void unregister_sysctl_table(struct ctl_table_header * table);
-int sysctl_check_table(struct ctl_table *table);
+int sysctl_check_table(struct nsproxy *namespaces, struct ctl_table *table);
 
 #else /* __KERNEL__ */