rds: Protect __rds_send_complete() with correct lock

Commit ad31046 ("rds: Add per peer RDS socket send buffer")
incorrectly changed the lock guarding __rds_send_complete from rs_lock
to rs_snd_lock. This leads to list corruption in
rds_rdma_send_complete().

Fixed by restoring said hunks.

Orabug: 30694458

Fixes: ad31046 ("rds: Add per peer RDS socket send buffer")

Signed-off-by: Håkon Bugge <[email protected]>
Tested-by: Jun Yang <[email protected]>
Reviewed-by: Ka-Cheong Poon <[email protected]>
Signed-off-by: Somasundaram Krishnasamy <[email protected]>

Orabug: 30820081

UEK5 => UEK6

(cherry picked from commit c575a18)
cherry-pick-repo=UEK/production/linux-uek.git

Signed-off-by: Gerd Rausch <[email protected]>
Reviewed-by: Sharon Liu <[email protected]>

Orabug: 33590097

UEK6 => UEK7

(cherry picked from commit 99e0dcf)
cherry-pick-repo=UEK/production/linux-uek.git

Signed-off-by: Gerd Rausch <[email protected]>
Reviewed-by: William Kucharski <[email protected]>

Author: Hakon-Bugge

net/rds/send.c

@@ -961,9 +961,9 @@ void rds_send_drop_to(struct rds_sock *rs, struct sockaddr_in6 *dest)
 		 */
 		spin_lock_irqsave(&rm->m_rs_lock, flags);
 
-		spin_lock(&rs->rs_snd_lock);
+		spin_lock(&rs->rs_lock);
 		__rds_send_complete(rs, rm, RDS_RDMA_SEND_CANCELED);
-		spin_unlock(&rs->rs_snd_lock);
+		spin_unlock(&rs->rs_lock);
 
 		rm->m_rs = NULL;
 		spin_unlock_irqrestore(&rm->m_rs_lock, flags);
@@ -1002,9 +1002,9 @@ void rds_send_drop_to(struct rds_sock *rs, struct sockaddr_in6 *dest)
 		 */
 		spin_lock_irqsave(&rm->m_rs_lock, flags);
 
-		spin_lock(&rs->rs_snd_lock);
+		spin_lock(&rs->rs_lock);
 		__rds_send_complete(rs, rm, RDS_RDMA_SEND_CANCELED);
-		spin_unlock(&rs->rs_snd_lock);
+		spin_unlock(&rs->rs_lock);
 
 		rm->m_rs = NULL;
 		spin_unlock_irqrestore(&rm->m_rs_lock, flags);