[SCTP]: Add RCU synchronization around sctp_localaddr_list

[powerpc.git] / include / net / sctp / structs.h

diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index c0d5848..a89e361 100644 (file)
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -207,6 +207,9 @@ extern struct sctp_globals {
         * It is a list of sctp_sockaddr_entry.
         */
        struct list_head local_addr_list;
+
+       /* Lock that protects the local_addr_list writers */
+       spinlock_t addr_list_lock;
        
        /* Flag to indicate if addip is enabled. */
        int addip_enable;
@@ -242,6 +245,7 @@ extern struct sctp_globals {
 #define sctp_port_alloc_lock           (sctp_globals.port_alloc_lock)
 #define sctp_port_hashtable            (sctp_globals.port_hashtable)
 #define sctp_local_addr_list           (sctp_globals.local_addr_list)
+#define sctp_local_addr_lock           (sctp_globals.addr_list_lock)
 #define sctp_addip_enable              (sctp_globals.addip_enable)
 #define sctp_prsctp_enable             (sctp_globals.prsctp_enable)
 
@@ -737,8 +741,10 @@ const union sctp_addr *sctp_source(const struct sctp_chunk *chunk);
 /* This is a structure for holding either an IPv6 or an IPv4 address.  */
 struct sctp_sockaddr_entry {
        struct list_head list;
+       struct rcu_head rcu;
        union sctp_addr a;
        __u8 use_as_src;
+       __u8 valid;
 };
 
 typedef struct sctp_chunk *(sctp_packet_phandler_t)(struct sctp_association *);