[PATCH net-next 3/3] rxrpc: Allow multiple client connections to the same peer
From: David Howells <dhowells@redhat.com>
Date: 2020-09-08 20:51:33
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Subsystem:
networking [general], rxrpc sockets (af_rxrpc), the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, David Howells, Marc Dionne, Linus Torvalds
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@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;