From owner-svn-src-stable@freebsd.org Wed Aug 14 23:05:57 2019 Return-Path: Delivered-To: svn-src-stable@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id EB590BEB96; Wed, 14 Aug 2019 23:05:57 +0000 (UTC) (envelope-from jhb@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4684v95Y9hz47QP; Wed, 14 Aug 2019 23:05:57 +0000 (UTC) (envelope-from jhb@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 9FFF474CA; Wed, 14 Aug 2019 23:05:57 +0000 (UTC) (envelope-from jhb@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x7EN5vie070144; Wed, 14 Aug 2019 23:05:57 GMT (envelope-from jhb@FreeBSD.org) Received: (from jhb@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x7EN5vZW070143; Wed, 14 Aug 2019 23:05:57 GMT (envelope-from jhb@FreeBSD.org) Message-Id: <201908142305.x7EN5vZW070143@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: jhb set sender to jhb@FreeBSD.org using -f From: John Baldwin Date: Wed, 14 Aug 2019 23:05:57 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r351057 - in stable: 11/sys/netinet 12/sys/netinet X-SVN-Group: stable-12 X-SVN-Commit-Author: jhb X-SVN-Commit-Paths: in stable: 11/sys/netinet 12/sys/netinet X-SVN-Commit-Revision: 351057 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 14 Aug 2019 23:05:58 -0000 Author: jhb Date: Wed Aug 14 23:05:57 2019 New Revision: 351057 URL: https://svnweb.freebsd.org/changeset/base/351057 Log: MFC 346360: Push down INP_WLOCK slightly in tcp_ctloutput. The inp lock is not needed for testing the V6 flag as that flag is set once when the inp is created and never changes. For non-TCP socket options the lock is immediately dropped after checking that flag. This just pushes the lock down to only be acquired for TCP socket options. This isn't a hot-path, more a cosmetic cleanup I noticed while reading the code. Modified: stable/12/sys/netinet/tcp_usrreq.c Directory Properties: stable/12/ (props changed) Changes in other areas also in this revision: Modified: stable/11/sys/netinet/tcp_usrreq.c Directory Properties: stable/11/ (props changed) Modified: stable/12/sys/netinet/tcp_usrreq.c ============================================================================== --- stable/12/sys/netinet/tcp_usrreq.c Wed Aug 14 22:35:11 2019 (r351056) +++ stable/12/sys/netinet/tcp_usrreq.c Wed Aug 14 23:05:57 2019 (r351057) @@ -1578,11 +1578,9 @@ tcp_ctloutput(struct socket *so, struct sockopt *sopt) error = 0; inp = sotoinpcb(so); KASSERT(inp != NULL, ("tcp_ctloutput: inp == NULL")); - INP_WLOCK(inp); if (sopt->sopt_level != IPPROTO_TCP) { #ifdef INET6 if (inp->inp_vflag & INP_IPV6PROTO) { - INP_WUNLOCK(inp); error = ip6_ctloutput(so, sopt); /* * In case of the IPV6_USE_MIN_MTU socket option, @@ -1627,12 +1625,12 @@ tcp_ctloutput(struct socket *so, struct sockopt *sopt) #endif #ifdef INET { - INP_WUNLOCK(inp); error = ip_ctloutput(so, sopt); } #endif return (error); } + INP_WLOCK(inp); if (inp->inp_flags & (INP_TIMEWAIT | INP_DROPPED)) { INP_WUNLOCK(inp); return (ECONNRESET);