diff options
Diffstat (limited to 'net/rxrpc/conn_service.c')
| -rw-r--r-- | net/rxrpc/conn_service.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/net/rxrpc/conn_service.c b/net/rxrpc/conn_service.c index 316a92107fee..189338a60457 100644 --- a/net/rxrpc/conn_service.c +++ b/net/rxrpc/conn_service.c @@ -119,6 +119,30 @@ replace_old_connection: } /* + * Preallocate a service connection. The connection is placed on the proc and + * reap lists so that we don't have to get the lock from BH context. + */ +struct rxrpc_connection *rxrpc_prealloc_service_connection(gfp_t gfp) +{ + struct rxrpc_connection *conn = rxrpc_alloc_connection(gfp); + + if (conn) { + /* We maintain an extra ref on the connection whilst it is on + * the rxrpc_connections list. + */ + conn->state = RXRPC_CONN_SERVICE_PREALLOC; + atomic_set(&conn->usage, 2); + + write_lock(&rxrpc_connection_lock); + list_add_tail(&conn->link, &rxrpc_connections); + list_add_tail(&conn->proc_link, &rxrpc_connection_proc_list); + write_unlock(&rxrpc_connection_lock); + } + + return conn; +} + +/* * get a record of an incoming connection */ struct rxrpc_connection *rxrpc_incoming_connection(struct rxrpc_local *local, |