From patchwork Wed May 20 19:54:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11561431 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 E25A260D for ; Wed, 20 May 2020 20:00:31 +0000 (UTC) Received: from userp2120.oracle.com (userp2120.oracle.com [156.151.31.85]) (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 B7ACC207F9 for ; Wed, 20 May 2020 20:00:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B7ACC207F9 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 (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 04KJvR3V163282; Wed, 20 May 2020 20:00:11 GMT Received: from userp3020.oracle.com (userp3020.oracle.com [156.151.31.79]) by userp2120.oracle.com with ESMTP id 31501rbnuq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 20 May 2020 20:00:10 +0000 Received: from pps.filterd (userp3020.oracle.com [127.0.0.1]) by userp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 04KJxDOh089704; Wed, 20 May 2020 20:00:10 GMT Received: from oss.oracle.com (oss-old-reserved.oracle.com [137.254.22.2]) by userp3020.oracle.com with ESMTP id 315020whv2-1 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO); Wed, 20 May 2020 20:00:10 +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 1jbUpo-0000GQ-9V; Wed, 20 May 2020 12:57:00 -0700 Received: from aserp3020.oracle.com ([141.146.126.70]) by oss.oracle.com with esmtp (Exim 4.63) (envelope-from ) id 1jbUp0-00005p-6u; Wed, 20 May 2020 12:56:10 -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 04KJnNrA144427; Wed, 20 May 2020 19:56:10 GMT Received: from userp2040.oracle.com (userp2040.oracle.com [156.151.31.90]) by aserp3020.oracle.com with ESMTP id 312t38m8jq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 20 May 2020 19:56:10 +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 04KJWaDg005154; Wed, 20 May 2020 19:56:09 GMT Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by userp2040.oracle.com with ESMTP id 314w4n85kb-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Wed, 20 May 2020 19:56:08 +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 1jbUoG-00023x-Po; Wed, 20 May 2020 19:55:25 +0000 From: Christoph Hellwig To: "David S. Miller" , Jakub Kicinski Date: Wed, 20 May 2020 21:54:41 +0200 Message-Id: <20200520195509.2215098-6-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=236 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 05/33] net: add sock_set_priority 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 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 bulkscore=0 suspectscore=0 phishscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2005200157 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9627 signatures=668686 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 lowpriorityscore=0 spamscore=0 mlxlogscore=999 clxscore=1034 priorityscore=1501 cotscore=-2147483648 impostorscore=0 bulkscore=0 adultscore=0 malwarescore=0 phishscore=0 mlxscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2005200157 Add a helper to directly set the SO_PRIORITY sockopt from kernel space without going through a fake uaccess. Signed-off-by: Christoph Hellwig Acked-by: Sagi Grimberg --- drivers/nvme/host/tcp.c | 12 ++---------- drivers/nvme/target/tcp.c | 18 ++++-------------- include/net/sock.h | 1 + net/core/sock.c | 8 ++++++++ 4 files changed, 15 insertions(+), 24 deletions(-) diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c index e72d87482eb78..a307972d33a02 100644 --- a/drivers/nvme/host/tcp.c +++ b/drivers/nvme/host/tcp.c @@ -1362,16 +1362,8 @@ static int nvme_tcp_alloc_queue(struct nvme_ctrl *nctrl, */ sock_no_linger(queue->sock->sk); - if (so_priority > 0) { - ret = kernel_setsockopt(queue->sock, SOL_SOCKET, SO_PRIORITY, - (char *)&so_priority, sizeof(so_priority)); - if (ret) { - dev_err(ctrl->ctrl.device, - "failed to set SO_PRIORITY sock opt, ret %d\n", - ret); - goto err_sock; - } - } + if (so_priority > 0) + sock_set_priority(queue->sock->sk, so_priority); /* Set socket type of service */ if (nctrl->opts->tos >= 0) { diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c index e0801494b097f..f3088156d01da 100644 --- a/drivers/nvme/target/tcp.c +++ b/drivers/nvme/target/tcp.c @@ -1448,12 +1448,8 @@ static int nvmet_tcp_set_queue_sock(struct nvmet_tcp_queue *queue) */ sock_no_linger(sock->sk); - if (so_priority > 0) { - ret = kernel_setsockopt(sock, SOL_SOCKET, SO_PRIORITY, - (char *)&so_priority, sizeof(so_priority)); - if (ret) - return ret; - } + if (so_priority > 0) + sock_set_priority(sock->sk, so_priority); /* Set socket type of service */ if (inet->rcv_tos > 0) { @@ -1638,14 +1634,8 @@ static int nvmet_tcp_add_port(struct nvmet_port *nport) goto err_sock; } - if (so_priority > 0) { - ret = kernel_setsockopt(port->sock, SOL_SOCKET, SO_PRIORITY, - (char *)&so_priority, sizeof(so_priority)); - if (ret) { - pr_err("failed to set SO_PRIORITY sock opt %d\n", ret); - goto err_sock; - } - } + if (so_priority > 0) + sock_set_priority(port->sock->sk, so_priority); ret = kernel_bind(port->sock, (struct sockaddr *)&port->addr, sizeof(port->addr)); diff --git a/include/net/sock.h b/include/net/sock.h index 6ed00bf009bbe..a3a43141a4be2 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -2689,6 +2689,7 @@ static inline bool sk_dev_equal_l3scope(struct sock *sk, int dif) void sock_def_readable(struct sock *sk); void sock_no_linger(struct sock *sk); +void sock_set_priority(struct sock *sk, u32 priority); void sock_set_reuseaddr(struct sock *sk); #endif /* _SOCK_H */ diff --git a/net/core/sock.c b/net/core/sock.c index f0f09524911c8..ceda1a9248b3e 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -729,6 +729,14 @@ void sock_no_linger(struct sock *sk) } EXPORT_SYMBOL(sock_no_linger); +void sock_set_priority(struct sock *sk, u32 priority) +{ + lock_sock(sk); + sk->sk_priority = priority; + release_sock(sk); +} +EXPORT_SYMBOL(sock_set_priority); + /* * This is meant for all protocols to use and covers goings on * at the socket level. Everything here is generic.