ipv4: use seqlock for nh_exceptions

[platform/adaptation/renesas_rcar/renesas_kernel.git] / include / net / ip_fib.h

diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index 5697ace..2daf096 100644 (file)
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -18,6 +18,7 @@
 
 #include <net/flow.h>
 #include <linux/seq_file.h>
+#include <linux/rcupdate.h>
 #include <net/fib_rules.h>
 #include <net/inetpeer.h>
 
@@ -46,6 +47,22 @@ struct fib_config {
 
 struct fib_info;
 
+struct fib_nh_exception {
+       struct fib_nh_exception __rcu   *fnhe_next;
+       __be32                          fnhe_daddr;
+       u32                             fnhe_pmtu;
+       __be32                          fnhe_gw;
+       unsigned long                   fnhe_expires;
+       unsigned long                   fnhe_stamp;
+};
+
+struct fnhe_hash_bucket {
+       struct fib_nh_exception __rcu   *chain;
+};
+
+#define FNHE_HASH_SIZE         2048
+#define FNHE_RECLAIM_DEPTH     5
+
 struct fib_nh {
        struct net_device       *nh_dev;
        struct hlist_node       nh_hash;
@@ -63,6 +80,7 @@ struct fib_nh {
        __be32                  nh_gw;
        __be32                  nh_saddr;
        int                     nh_saddr_genid;
+       struct fnhe_hash_bucket *nh_exceptions;
 };
 
 /*