diff options
Diffstat (limited to 'drivers/block/nbd.c')
| -rw-r--r-- | drivers/block/nbd.c | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 43cff01a5a67..3ff4054d6834 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -784,6 +784,7 @@ static void recv_work(struct work_struct *work) struct nbd_device *nbd = args->nbd; struct nbd_config *config = nbd->config; struct nbd_cmd *cmd; + struct request *rq; while (1) { cmd = nbd_read_stat(nbd, args->index); @@ -796,7 +797,9 @@ static void recv_work(struct work_struct *work) break; } - blk_mq_complete_request(blk_mq_rq_from_pdu(cmd)); + rq = blk_mq_rq_from_pdu(cmd); + if (likely(!blk_should_fake_timeout(rq->q))) + blk_mq_complete_request(rq); } atomic_dec(&config->recv_threads); wake_up(&config->recv_wq); @@ -1033,25 +1036,26 @@ static int nbd_add_socket(struct nbd_device *nbd, unsigned long arg, test_bit(NBD_RT_BOUND, &config->runtime_flags))) { dev_err(disk_to_dev(nbd->disk), "Device being setup by another task"); - sockfd_put(sock); - return -EBUSY; + err = -EBUSY; + goto put_socket; + } + + nsock = kzalloc(sizeof(*nsock), GFP_KERNEL); + if (!nsock) { + err = -ENOMEM; + goto put_socket; } socks = krealloc(config->socks, (config->num_connections + 1) * sizeof(struct nbd_sock *), GFP_KERNEL); if (!socks) { - sockfd_put(sock); - return -ENOMEM; + kfree(nsock); + err = -ENOMEM; + goto put_socket; } config->socks = socks; - nsock = kzalloc(sizeof(struct nbd_sock), GFP_KERNEL); - if (!nsock) { - sockfd_put(sock); - return -ENOMEM; - } - nsock->fallback_index = -1; nsock->dead = false; mutex_init(&nsock->tx_lock); @@ -1063,6 +1067,10 @@ static int nbd_add_socket(struct nbd_device *nbd, unsigned long arg, atomic_inc(&config->live_connections); return 0; + +put_socket: + sockfd_put(sock); + return err; } static int nbd_reconnect_socket(struct nbd_device *nbd, unsigned long arg) |