From patchwork Wed May 20 19:54:56 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11561271 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D60CE1391 for ; Wed, 20 May 2020 19:58:03 +0000 (UTC) Received: from userp2130.oracle.com (userp2130.oracle.com [156.151.31.86]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B3292207D8 for ; Wed, 20 May 2020 19:58:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B3292207D8 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=ocfs2-devel-bounces@oss.oracle.com Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 04KJvHXJ144988; Wed, 20 May 2020 19:57:24 GMT Received: from userp3030.oracle.com (userp3030.oracle.com [156.151.31.80]) by userp2130.oracle.com with ESMTP id 3127krd5n4-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 20 May 2020 19:57:24 +0000 Received: from pps.filterd (userp3030.oracle.com [127.0.0.1]) by userp3030.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 04KJmgfc072113; Wed, 20 May 2020 19:57:24 GMT Received: from oss.oracle.com (oss-old-reserved.oracle.com [137.254.22.2]) by userp3030.oracle.com with ESMTP id 314gm7pehg-1 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO); Wed, 20 May 2020 19:57:24 +0000 Received: from localhost ([127.0.0.1] helo=lb-oss.oracle.com) by oss.oracle.com with esmtp (Exim 4.63) (envelope-from ) id 1jbUqB-0000dI-DD; Wed, 20 May 2020 12:57:23 -0700 Received: from aserp3020.oracle.com ([141.146.126.70]) by oss.oracle.com with esmtp (Exim 4.63) (envelope-from ) id 1jbUpi-0000DL-VI; Wed, 20 May 2020 12:56:54 -0700 Received: from pps.filterd (aserp3020.oracle.com [127.0.0.1]) by aserp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 04KJnNb6144435; Wed, 20 May 2020 19:56:54 GMT Received: from userp2040.oracle.com (userp2040.oracle.com [156.151.31.90]) by aserp3020.oracle.com with ESMTP id 312t38mad7-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 20 May 2020 19:56:54 +0000 Received: from pps.filterd (userp2040.oracle.com [127.0.0.1]) by userp2040.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 04KJWaqG005145; Wed, 20 May 2020 19:56:53 GMT Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by userp2040.oracle.com with ESMTP id 314w4n85yk-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Wed, 20 May 2020 19:56:53 +0000 Received: from [2001:4bb8:188:1506:c70:4a89:bc61:2] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jbUoy-0002xc-2U; Wed, 20 May 2020 19:56:08 +0000 From: Christoph Hellwig To: "David S. Miller" , Jakub Kicinski Date: Wed, 20 May 2020 21:54:56 +0200 Message-Id: <20200520195509.2215098-21-hch@lst.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200520195509.2215098-1-hch@lst.de> References: <20200520195509.2215098-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-PDR: PASS X-Source-IP: 198.137.202.133 X-ServerName: bombadil.infradead.org X-Proofpoint-SPF-Result: None X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9627 signatures=668686 X-Proofpoint-Spam-Details: rule=tap_notspam policy=tap score=0 priorityscore=0 mlxscore=0 mlxlogscore=999 spamscore=0 lowpriorityscore=0 clxscore=237 suspectscore=0 phishscore=0 impostorscore=0 malwarescore=0 bulkscore=0 cotscore=-2147483648 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2005200155 X-Spam: Clean X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 bulkscore=0 spamscore=0 mlxlogscore=999 phishscore=0 mlxscore=0 malwarescore=0 suspectscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2005200156 Cc: Marcelo Ricardo Leitner , Eric Dumazet , linux-nvme@lists.infradead.org, linux-sctp@vger.kernel.org, target-devel@vger.kernel.org, linux-afs@lists.infradead.org, drbd-dev@lists.linbit.com, linux-cifs@vger.kernel.org, rds-devel@oss.oracle.com, Sagi Grimberg , linux-rdma@vger.kernel.org, cluster-devel@redhat.com, Alexey Kuznetsov , ceph-devel@vger.kernel.org, linux-nfs@vger.kernel.org, Neil Horman , Hideaki YOSHIFUJI , netdev@vger.kernel.org, Vlad Yasevich , linux-kernel@vger.kernel.org, Jon Maloy , Ying Xue , ocfs2-devel@oss.oracle.com Subject: [Ocfs2-devel] [PATCH 20/33] ipv4: add ip_sock_set_tos X-BeenThere: ocfs2-devel@oss.oracle.com X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: ocfs2-devel-bounces@oss.oracle.com Errors-To: ocfs2-devel-bounces@oss.oracle.com X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9627 signatures=668686 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0 mlxlogscore=999 adultscore=0 phishscore=0 mlxscore=0 spamscore=0 suspectscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2005200156 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9627 signatures=668686 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 phishscore=0 spamscore=0 bulkscore=0 clxscore=1034 priorityscore=1501 mlxscore=0 impostorscore=0 suspectscore=0 mlxlogscore=999 malwarescore=0 cotscore=-2147483648 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2005200157 Add a helper to directly set the IP_TOS sockopt from kernel space without going through a fake uaccess. Signed-off-by: Christoph Hellwig Acked-by: Sagi Grimberg --- drivers/nvme/host/tcp.c | 14 +++----------- drivers/nvme/target/tcp.c | 10 ++-------- include/net/ip.h | 2 ++ net/ipv4/ip_sockglue.c | 30 +++++++++++++++++++++--------- 4 files changed, 28 insertions(+), 28 deletions(-) diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c index 2872584f52f63..4c972d8abf317 100644 --- a/drivers/nvme/host/tcp.c +++ b/drivers/nvme/host/tcp.c @@ -1313,7 +1313,7 @@ static int nvme_tcp_alloc_queue(struct nvme_ctrl *nctrl, { struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(nctrl); struct nvme_tcp_queue *queue = &ctrl->queues[qid]; - int ret, opt, rcv_pdu_size; + int ret, rcv_pdu_size; queue->ctrl = ctrl; INIT_LIST_HEAD(&queue->send_list); @@ -1352,16 +1352,8 @@ static int nvme_tcp_alloc_queue(struct nvme_ctrl *nctrl, sock_set_priority(queue->sock->sk, so_priority); /* Set socket type of service */ - if (nctrl->opts->tos >= 0) { - opt = nctrl->opts->tos; - ret = kernel_setsockopt(queue->sock, SOL_IP, IP_TOS, - (char *)&opt, sizeof(opt)); - if (ret) { - dev_err(nctrl->device, - "failed to set IP_TOS sock opt %d\n", ret); - goto err_sock; - } - } + if (nctrl->opts->tos >= 0) + ip_sock_set_tos(queue->sock->sk, nctrl->opts->tos); queue->sock->sk->sk_allocation = GFP_ATOMIC; nvme_tcp_set_queue_io_cpu(queue); diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c index 55bc4c3c0a74a..4546049a96b37 100644 --- a/drivers/nvme/target/tcp.c +++ b/drivers/nvme/target/tcp.c @@ -1452,14 +1452,8 @@ static int nvmet_tcp_set_queue_sock(struct nvmet_tcp_queue *queue) sock_set_priority(sock->sk, so_priority); /* Set socket type of service */ - if (inet->rcv_tos > 0) { - int tos = inet->rcv_tos; - - ret = kernel_setsockopt(sock, SOL_IP, IP_TOS, - (char *)&tos, sizeof(tos)); - if (ret) - return ret; - } + if (inet->rcv_tos > 0) + ip_sock_set_tos(sock->sk, inet->rcv_tos); write_lock_bh(&sock->sk->sk_callback_lock); sock->sk->sk_user_data = queue; diff --git a/include/net/ip.h b/include/net/ip.h index 5b317c9f4470a..2fc52e26fa88b 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -765,4 +765,6 @@ static inline bool inetdev_valid_mtu(unsigned int mtu) return likely(mtu >= IPV4_MIN_MTU); } +void ip_sock_set_tos(struct sock *sk, int val); + #endif /* _IP_H */ diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c index 8206047d70b6b..1733ac78c21aa 100644 --- a/net/ipv4/ip_sockglue.c +++ b/net/ipv4/ip_sockglue.c @@ -560,6 +560,26 @@ int ip_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len) return err; } +static void __ip_sock_set_tos(struct sock *sk, int val) +{ + if (sk->sk_type == SOCK_STREAM) { + val &= ~INET_ECN_MASK; + val |= inet_sk(sk)->tos & INET_ECN_MASK; + } + if (inet_sk(sk)->tos != val) { + inet_sk(sk)->tos = val; + sk->sk_priority = rt_tos2priority(val); + sk_dst_reset(sk); + } +} + +void ip_sock_set_tos(struct sock *sk, int val) +{ + lock_sock(sk); + __ip_sock_set_tos(sk, val); + release_sock(sk); +} +EXPORT_SYMBOL(ip_sock_set_tos); /* * Socket option code for IP. This is the end of the line after any @@ -743,15 +763,7 @@ static int do_ip_setsockopt(struct sock *sk, int level, inet->cmsg_flags &= ~IP_CMSG_RECVFRAGSIZE; break; case IP_TOS: /* This sets both TOS and Precedence */ - if (sk->sk_type == SOCK_STREAM) { - val &= ~INET_ECN_MASK; - val |= inet->tos & INET_ECN_MASK; - } - if (inet->tos != val) { - inet->tos = val; - sk->sk_priority = rt_tos2priority(val); - sk_dst_reset(sk); - } + __ip_sock_set_tos(sk, val); break; case IP_TTL: if (optlen < 1)