[PATCH net-next 3/3] rxrpc: Allow multiple client connections to the same peer

[David Howells]

Allow the number of parallel connections to a machine to be expanded from a
single connection to a maximum of four.  This allows up to 16 calls to be
in progress at the same time to any particular peer instead of 4.

Signed-off-by: David Howells <dhowells at redhat.com>
---

 net/rxrpc/conn_client.c |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/rxrpc/conn_client.c b/net/rxrpc/conn_client.c
index 8b41c87b3333..0e4e1879c24d 100644
--- a/net/rxrpc/conn_client.c
+++ b/net/rxrpc/conn_client.c
@@ -486,6 +486,12 @@ static void rxrpc_maybe_add_conn(struct rxrpc_bundle *bundle, gfp_t gfp)
 	if (!usable)
 		goto alloc_conn;
 
+	if (!bundle->avail_chans &&
+	    !bundle->try_upgrade &&
+	    !list_empty(&bundle->waiting_calls) &&
+	    usable < ARRAY_SIZE(bundle->conns))
+		goto alloc_conn;
+
 	spin_unlock(&bundle->channel_lock);
 	_leave("");
 	return;