Use random32() in net/ipv4/multipath

index b8c289f..6448e6c 100644
@@ -33,6 +33,7 @@
 #include <linux/module.h>
 #include <linux/mroute.h>
 #include <linux/init.h>
+#include <linux/random.h>
 #include <net/ip.h>
 #include <net/protocol.h>
 #include <linux/skbuff.h>

@@ -49,21 +50,6 @@
 
 #define MULTIPATH_MAX_CANDIDATES 40
 
-/* interface to random number generation */
-static unsigned int RANDOM_SEED = 93186752;
-
-static inline unsigned int random(unsigned int ubound)
-{
-	static unsigned int a = 1588635695,
-		q = 2,
-		r = 1117695901;
-
-	RANDOM_SEED = a*(RANDOM_SEED % q) - r*(RANDOM_SEED / q);
-
-	return RANDOM_SEED % ubound;
-}
-
-
 static void random_select_route(const struct flowi *flp,
 				struct rtable *first,
 				struct rtable **rp)

@@ -85,7 +71,7 @@ static void random_select_route(const struct flowi *flp,
 	if (candidate_count > 1) {
 		unsigned char i = 0;
 		unsigned char candidate_no = (unsigned char)
-			random(candidate_count);
+			(random32() % candidate_count);
 
 		/* find chosen candidate and adjust GC data for all candidates
 		 * to ensure they stay in cache

index 92b0482..d6115a3 100644
@@ -33,6 +33,7 @@
 #include <linux/module.h>
 #include <linux/mroute.h>
 #include <linux/init.h>
+#include <linux/random.h>
 #include <net/ip.h>
 #include <net/protocol.h>
 #include <linux/skbuff.h>

@@ -85,18 +86,6 @@ struct multipath_route {
 /* state: primarily weight per route information */
 static struct multipath_bucket state[MULTIPATH_STATE_SIZE];
 
-/* interface to random number generation */
-static unsigned int RANDOM_SEED = 93186752;
-
-static inline unsigned int random(unsigned int ubound)
-{
-	static unsigned int a = 1588635695,
-		q = 2,
-		r = 1117695901;
-	RANDOM_SEED = a*(RANDOM_SEED % q) - r*(RANDOM_SEED / q);
-	return RANDOM_SEED % ubound;
-}
-
 static unsigned char __multipath_lookup_weight(const struct flowi *fl,
 					       const struct rtable *rt)
 {

@@ -194,7 +183,7 @@ static void wrandom_select_route(const struct flowi *flp,
 
 	/* choose a weighted random candidate */
 	decision = first;
-	selector = random(power);
+	selector = random32() % power;
 	last_power = 0;
 
 	/* select candidate, adjust GC data and cleanup local state */

@@ -242,6 +242,8 @@ struct tcp_sock {
  *	See RFC793 and RFC1122. The RFC writes these in capitals.
  */
  	u32	rcv_nxt;	/* What we want to receive next 	*/
+	u32	copied_seq;	/* Head of yet unread data		*/
+	u32	rcv_wup;	/* rcv_nxt on last window update sent	*/
  	u32	snd_nxt;	/* Next sequence we send		*/
 
  	u32	snd_una;	/* First byte we want an ack for	*/

@@ -307,10 +309,8 @@ struct tcp_sock {
 	struct sk_buff_head	out_of_order_queue; /* Out of order segments go here */
 
  	u32	rcv_wnd;	/* Current receiver window		*/
-	u32	rcv_wup;	/* rcv_nxt on last window update sent	*/
 	u32	write_seq;	/* Tail(+1) of data held in tcp send buffer */
 	u32	pushed_seq;	/* Last pushed seq, required to talk to windows */
-	u32	copied_seq;	/* Head of yet unread data		*/
 
 /*	SACKs data	*/
 	struct tcp_sack_block duplicate_sack[1]; /* D-SACK block */

@@ -242,6 +242,8 @@ struct tcp_sock {
  *	See RFC793 and RFC1122. The RFC writes these in capitals.
  */
  	u32	rcv_nxt;	/* What we want to receive next 	*/
+	u32	copied_seq;	/* Head of yet unread data		*/
+	u32	rcv_wup;	/* rcv_nxt on last window update sent	*/
  	u32	snd_nxt;	/* Next sequence we send		*/
 
  	u32	snd_una;	/* First byte we want an ack for	*/

@@ -307,10 +309,8 @@ struct tcp_sock {
 	struct sk_buff_head	out_of_order_queue; /* Out of order segments go here */
 
  	u32	rcv_wnd;	/* Current receiver window		*/
-	u32	rcv_wup;	/* rcv_nxt on last window update sent	*/
 	u32	write_seq;	/* Tail(+1) of data held in tcp send buffer */
 	u32	pushed_seq;	/* Last pushed seq, required to talk to windows */
-	u32	copied_seq;	/* Head of yet unread data		*/
 
 /*	SACKs data	*/
 	struct tcp_sack_block duplicate_sack[1]; /* D-SACK block */

@@ -387,8 +387,8 @@ struct sock *tcp_create_openreq_child(st
 		/* Now setup tcp_sock */
 		newtp = tcp_sk(newsk);
 		newtp->pred_flags = 0;
-		newtp->rcv_nxt = treq->rcv_isn + 1;
-		newtp->snd_nxt = newtp->snd_una = newtp->snd_sml = treq->snt_isn + 1;
+		newtp->rcv_wup = newtp->copied_seq = newtp->rcv_nxt = treq->rcv_isn + 1;
+		newtp->snd_sml = newtp->snd_una = newtp->snd_nxt = treq->snt_isn + 1;
 
 		tcp_prequeue_init(newtp);
 

@@ -422,10 +422,8 @@ struct sock *tcp_create_openreq_child(st
 		tcp_set_ca_state(newsk, TCP_CA_Open);
 		tcp_init_xmit_timers(newsk);
 		skb_queue_head_init(&newtp->out_of_order_queue);
-		newtp->rcv_wup = treq->rcv_isn + 1;
 		newtp->write_seq = treq->snt_isn + 1;
 		newtp->pushed_seq = newtp->write_seq;
-		newtp->copied_seq = treq->rcv_isn + 1;
 
 		newtp->rx_opt.saw_tstamp = 0;
 

@@ -202,6 +202,15 @@ struct sock {
 	unsigned short		sk_type;
 	int			sk_rcvbuf;
 	socket_lock_t		sk_lock;
+	/*
+	 * The backlog queue is special, it is always used with
+	 * the per-socket spinlock held and requires low latency
+	 * access. Therefore we special case it's implementation.
+	 */
+	struct {
+		struct sk_buff *head;
+		struct sk_buff *tail;
+	} sk_backlog;
 	wait_queue_head_t	*sk_sleep;
 	struct dst_entry	*sk_dst_cache;
 	struct xfrm_policy	*sk_policy[2];

@@ -221,15 +230,6 @@ struct sock {
 	int			sk_rcvlowat;
 	unsigned long 		sk_flags;
 	unsigned long	        sk_lingertime;
-	/*
-	 * The backlog queue is special, it is always used with
-	 * the per-socket spinlock held and requires low latency
-	 * access. Therefore we special case it's implementation.
-	 */
-	struct {
-		struct sk_buff *head;
-		struct sk_buff *tail;
-	} sk_backlog;
 	struct sk_buff_head	sk_error_queue;
 	struct proto		*sk_prot_creator;
 	rwlock_t		sk_callback_lock;

@@ -904,6 +904,7 @@ struct sock *sk_clone(const struct sock 
 		sk_node_init(&newsk->sk_node);
 		sock_lock_init(newsk);
 		bh_lock_sock(newsk);
+		newsk->sk_backlog.head	= newsk->sk_backlog.tail = NULL;
 
 		atomic_set(&newsk->sk_rmem_alloc, 0);
 		atomic_set(&newsk->sk_wmem_alloc, 0);

@@ -923,7 +924,6 @@ struct sock *sk_clone(const struct sock 
 		newsk->sk_wmem_queued	= 0;
 		newsk->sk_forward_alloc = 0;
 		newsk->sk_send_head	= NULL;
-		newsk->sk_backlog.head	= newsk->sk_backlog.tail = NULL;
 		newsk->sk_userlocks	= sk->sk_userlocks & ~SOCK_BINDPORT_LOCK;
 
 		sock_reset_flag(newsk, SOCK_DONE);