From patchwork Wed May 13 06:26:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11545061 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 85A79139A for ; Wed, 13 May 2020 06:32:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6E88D206F5 for ; Wed, 13 May 2020 06:32:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="qenFgteX" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729940AbgEMG2R (ORCPT ); Wed, 13 May 2020 02:28:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46038 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729904AbgEMG2P (ORCPT ); Wed, 13 May 2020 02:28:15 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0D2A9C061A0E; Tue, 12 May 2020 23:28:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=IEh9ZmFO5wqxAq2bKvDDXMAdX0GdkIAJdFHyY8t97p8=; b=qenFgteXPMvirhjEH2enSeyV21 f4E+NEvJ9QbgSFZvZtp0iTzaa7y5uByORVHVlIdzeIIzXe0Ihnv/g3E7oECj48+tEcP3LFhD+pc+G kx7ymBLjEMXF4lv+JFUYt1209tyklN+RSCRGczbQ6UQZQDJAEF5N9RPwO/lOhOImcXhAdT8/AvfnT OsbwRKlVoMX5plFMUr1gR6Lc+o5xj2eH05lulOd6vsIHm27b0ut4FsvtP0SllvJ5YyhokrX2XmnFg OxmWWt/8cLwAa6uKDTD6mJOgvYQyhtc00TsCmkFESx0Fqqh4Mg/74QFEdFbI1/qdqIWt9YvlHn09W 58MCTq0Q==; Received: from [2001:4bb8:180:9d3f:c70:4a89:bc61:2] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jYkrF-0003zu-13; Wed, 13 May 2020 06:27:09 +0000 From: Christoph Hellwig To: "David S. Miller" , Jakub Kicinski Cc: Eric Dumazet , Alexey Kuznetsov , Hideaki YOSHIFUJI , Vlad Yasevich , Neil Horman , Marcelo Ricardo Leitner , Jon Maloy , Ying Xue , drbd-dev@lists.linbit.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, linux-nvme@lists.infradead.org, target-devel@vger.kernel.org, linux-afs@lists.infradead.org, linux-cifs@vger.kernel.org, cluster-devel@redhat.com, ocfs2-devel@oss.oracle.com, netdev@vger.kernel.org, linux-sctp@vger.kernel.org, ceph-devel@vger.kernel.org, rds-devel@oss.oracle.com, linux-nfs@vger.kernel.org Subject: [PATCH 06/33] net: add sock_set_timestamps Date: Wed, 13 May 2020 08:26:21 +0200 Message-Id: <20200513062649.2100053-7-hch@lst.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200513062649.2100053-1-hch@lst.de> References: <20200513062649.2100053-1-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 Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org Add a helper to directly set the SO_TIMESTAMP* sockopts from kernel space without going through a fake uaccess. Signed-off-by: Christoph Hellwig Reviewed-by: David Howells --- include/net/sock.h | 1 + net/core/sock.c | 47 +++++++++++++++++++++++++--------------- net/rxrpc/local_object.c | 8 +------ 3 files changed, 31 insertions(+), 25 deletions(-) diff --git a/include/net/sock.h b/include/net/sock.h index b63ea15362065..cf8a30e0168de 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -2692,5 +2692,6 @@ void sock_set_linger(struct sock *sk, bool onoff, unsigned int linger); void sock_set_priority(struct sock *sk, u32 priority); void sock_set_sndtimeo(struct sock *sk, unsigned int secs); int sock_bindtoindex(struct sock *sk, int ifindex); +void sock_set_timestamps(struct sock *sk, bool val, bool new, bool ns); #endif /* _SOCK_H */ diff --git a/net/core/sock.c b/net/core/sock.c index 4b7439308caec..1589f242ecc7e 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -772,6 +772,28 @@ void sock_set_sndtimeo(struct sock *sk, unsigned int secs) } EXPORT_SYMBOL(sock_set_sndtimeo); +static void __sock_set_timestamps(struct sock *sk, bool val, bool new, bool ns) +{ + if (val) { + sock_valbool_flag(sk, SOCK_TSTAMP_NEW, new); + sock_valbool_flag(sk, SOCK_RCVTSTAMPNS, ns); + sock_set_flag(sk, SOCK_RCVTSTAMP); + sock_enable_timestamp(sk, SOCK_TIMESTAMP); + } else { + sock_reset_flag(sk, SOCK_RCVTSTAMP); + sock_reset_flag(sk, SOCK_RCVTSTAMPNS); + sock_reset_flag(sk, SOCK_TSTAMP_NEW); + } +} + +void sock_set_timestamps(struct sock *sk, bool val, bool new, bool ns) +{ + lock_sock(sk); + __sock_set_timestamps(sk, val, new, ns); + release_sock(sk); +} +EXPORT_SYMBOL(sock_set_timestamps); + /* * This is meant for all protocols to use and covers goings on * at the socket level. Everything here is generic. @@ -953,28 +975,17 @@ int sock_setsockopt(struct socket *sock, int level, int optname, break; case SO_TIMESTAMP_OLD: + __sock_set_timestamps(sk, valbool, false, false); + break; case SO_TIMESTAMP_NEW: + __sock_set_timestamps(sk, valbool, true, false); + break; case SO_TIMESTAMPNS_OLD: + __sock_set_timestamps(sk, valbool, false, true); + break; case SO_TIMESTAMPNS_NEW: - if (valbool) { - if (optname == SO_TIMESTAMP_NEW || optname == SO_TIMESTAMPNS_NEW) - sock_set_flag(sk, SOCK_TSTAMP_NEW); - else - sock_reset_flag(sk, SOCK_TSTAMP_NEW); - - if (optname == SO_TIMESTAMP_OLD || optname == SO_TIMESTAMP_NEW) - sock_reset_flag(sk, SOCK_RCVTSTAMPNS); - else - sock_set_flag(sk, SOCK_RCVTSTAMPNS); - sock_set_flag(sk, SOCK_RCVTSTAMP); - sock_enable_timestamp(sk, SOCK_TIMESTAMP); - } else { - sock_reset_flag(sk, SOCK_RCVTSTAMP); - sock_reset_flag(sk, SOCK_RCVTSTAMPNS); - sock_reset_flag(sk, SOCK_TSTAMP_NEW); - } + __sock_set_timestamps(sk, valbool, true, true); break; - case SO_TIMESTAMPING_NEW: sock_set_flag(sk, SOCK_TSTAMP_NEW); /* fall through */ diff --git a/net/rxrpc/local_object.c b/net/rxrpc/local_object.c index 01135e54d95d2..562ea36c96b0f 100644 --- a/net/rxrpc/local_object.c +++ b/net/rxrpc/local_object.c @@ -189,13 +189,7 @@ static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net) } /* We want receive timestamps. */ - opt = 1; - ret = kernel_setsockopt(local->socket, SOL_SOCKET, SO_TIMESTAMPNS_OLD, - (char *)&opt, sizeof(opt)); - if (ret < 0) { - _debug("setsockopt failed"); - goto error; - } + sock_set_timestamps(local->socket->sk, true, false, true); break; default: