diff options
Diffstat (limited to 'net/rxrpc/io_thread.c')
| -rw-r--r-- | net/rxrpc/io_thread.c | 51 |
1 files changed, 50 insertions, 1 deletions
diff --git a/net/rxrpc/io_thread.c b/net/rxrpc/io_thread.c index d2aaad5afa1d..0b3e096e3d50 100644 --- a/net/rxrpc/io_thread.c +++ b/net/rxrpc/io_thread.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0-or-later /* RxRPC packet reception * - * Copyright (C) 2007, 2016 Red Hat, Inc. All Rights Reserved. + * Copyright (C) 2007, 2016, 2022 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) */ @@ -368,3 +368,52 @@ reject_packet: _leave(" [badmsg]"); return 0; } + +/* + * I/O and event handling thread. + */ +int rxrpc_io_thread(void *data) +{ + struct sk_buff_head rx_queue; + struct rxrpc_local *local = data; + struct sk_buff *skb; + + skb_queue_head_init(&rx_queue); + + set_user_nice(current, MIN_NICE); + + for (;;) { + rxrpc_inc_stat(local->rxnet, stat_io_loop); + + /* Process received packets and errors. */ + if ((skb = __skb_dequeue(&rx_queue))) { + // TODO: Input packet + rxrpc_free_skb(skb, rxrpc_skb_put_input); + continue; + } + + if (!skb_queue_empty(&local->rx_queue)) { + spin_lock_irq(&local->rx_queue.lock); + skb_queue_splice_tail_init(&local->rx_queue, &rx_queue); + spin_unlock_irq(&local->rx_queue.lock); + continue; + } + + set_current_state(TASK_INTERRUPTIBLE); + if (!skb_queue_empty(&local->rx_queue)) { + __set_current_state(TASK_RUNNING); + continue; + } + + if (kthread_should_stop()) + break; + schedule(); + } + + __set_current_state(TASK_RUNNING); + rxrpc_see_local(local, rxrpc_local_stop); + rxrpc_destroy_local(local); + local->io_thread = NULL; + rxrpc_see_local(local, rxrpc_local_stopped); + return 0; +} |