1 files changed, 19 insertions, 7 deletions

diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index 7a37369f8ea3..caaff5f5f39f 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -57,7 +57,15 @@ struct ip_options {
         unsigned char   __data[0];
 };
 
-#define optlength(opt) (sizeof(struct ip_options) + opt->optlen)
+struct ip_options_rcu {
+        struct rcu_head rcu;
+        struct ip_options opt;
+};
+
+struct ip_options_data {
+        struct ip_options_rcu   opt;
+        char                    data[40];
+};
 
 struct inet_request_sock {
         struct request_sock     req;
@@ -78,7 +86,7 @@ struct inet_request_sock {
                                 acked      : 1,
                                 no_srccheck: 1;
         kmemcheck_bitfield_end(flags);
-        struct ip_options       *opt;
+        struct ip_options_rcu   *opt;
 };
 
 static inline struct inet_request_sock *inet_rsk(const struct request_sock *sk)
@@ -88,17 +96,21 @@ static inline struct inet_request_sock *inet_rsk(const struct request_sock *sk)
 
 struct inet_cork {
         unsigned int            flags;
-        unsigned int            fragsize;
+        __be32                  addr;
         struct ip_options       *opt;
+        unsigned int            fragsize;
         struct dst_entry        *dst;
         int                     length; /* Total length of all frames */
-        __be32                  addr;
-        struct flowi            fl;
         struct page             *page;
         u32                     off;
         u8                      tx_flags;
 };
 
+struct inet_cork_full {
+        struct inet_cork        base;
+        struct flowi            fl;
+};
+
 struct ip_mc_socklist;
 struct ipv6_pinfo;
 struct rtable;
@@ -140,7 +152,7 @@ struct inet_sock {
         __be16                  inet_sport;
         __u16                   inet_id;
 
-        struct ip_options       *opt;
+        struct ip_options_rcu __rcu     *inet_opt;
         __u8                    tos;
         __u8                    min_ttl;
         __u8                    mc_ttl;
@@ -156,7 +168,7 @@ struct inet_sock {
         int                     mc_index;
         __be32                  mc_addr;
         struct ip_mc_socklist __rcu     *mc_list;
-        struct inet_cork        cork;
+        struct inet_cork_full   cork;
 };
 
 #define IPCORK_OPT      1       /* ip-options has been held in ipcork.opt */