Re: [syzbot] [rds?] WARNING in rds_conn_connect_if_down

[Edward Adam Davis <eadavis@qq.com>]

please test mp capable for rds

#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

diff --git a/net/rds/rdma.c b/net/rds/rdma.c
index fba82d36593a..7fe1a79bd63d 100644
--- a/net/rds/rdma.c
+++ b/net/rds/rdma.c
@@ -301,6 +301,10 @@ static int __rds_rdma_map(struct rds_sock *rs, struct rds_get_mr_args *args,
 			kfree(sg);
 		}
 		ret = PTR_ERR(trans_private);
+		printk("ret: %d, %s\n", ret, __func__);
+		/* Trigger connection so that its ready for the next retry */
+		if (ret == -ENODEV)
+			rds_conn_connect_if_down(cp->cp_conn);
 		goto out;
 	}
 
diff --git a/net/rds/send.c b/net/rds/send.c
index 5e57a1581dc6..9efda3283753 100644
--- a/net/rds/send.c
+++ b/net/rds/send.c
@@ -1314,9 +1314,6 @@ int rds_sendmsg(struct socket *sock, struct msghdr *msg, size_t payload_len)
 	/* Parse any control messages the user may have included. */
 	ret = rds_cmsg_send(rs, rm, msg, &allocated_mr, &vct);
 	if (ret) {
-		/* Trigger connection so that its ready for the next retry */
-		if (ret ==  -EAGAIN)
-			rds_conn_connect_if_down(conn);
 		goto out;
 	}