From owner-svn-src-all@freebsd.org Thu Jan 23 01:47:44 2020 Return-Path: Delivered-To: svn-src-all@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 2BF7B227371; Thu, 23 Jan 2020 01:47:44 +0000 (UTC) (envelope-from glebius@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 4834sX0PGpz3Mhn; Thu, 23 Jan 2020 01:47:44 +0000 (UTC) (envelope-from glebius@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 0901E7094; Thu, 23 Jan 2020 01:47:44 +0000 (UTC) (envelope-from glebius@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 00N1lhVR042267; Thu, 23 Jan 2020 01:47:43 GMT (envelope-from glebius@FreeBSD.org) Received: (from glebius@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 00N1lh9g042266; Thu, 23 Jan 2020 01:47:43 GMT (envelope-from glebius@FreeBSD.org) Message-Id: <202001230147.00N1lh9g042266@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: glebius set sender to glebius@FreeBSD.org using -f From: Gleb Smirnoff Date: Thu, 23 Jan 2020 01:47:43 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r357012 - head/sys/net X-SVN-Group: head X-SVN-Commit-Author: glebius X-SVN-Commit-Paths: head/sys/net X-SVN-Commit-Revision: 357012 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 23 Jan 2020 01:47:44 -0000 Author: glebius Date: Thu Jan 23 01:47:43 2020 New Revision: 357012 URL: https://svnweb.freebsd.org/changeset/base/357012 Log: Stop entering the network epoch in ether_input(), unless driver is marked with IFF_NEEDSEPOCH. Modified: head/sys/net/if_ethersubr.c Modified: head/sys/net/if_ethersubr.c ============================================================================== --- head/sys/net/if_ethersubr.c Thu Jan 23 01:46:05 2020 (r357011) +++ head/sys/net/if_ethersubr.c Thu Jan 23 01:47:43 2020 (r357012) @@ -809,7 +809,8 @@ ether_input(struct ifnet *ifp, struct mbuf *m) * them up. This allows the drivers to amortize the receive lock. */ CURVNET_SET_QUIET(ifp->if_vnet); - NET_EPOCH_ENTER(et); + if (__predict_false(ifp->if_flags & IFF_NEEDSEPOCH)) + NET_EPOCH_ENTER(et); while (m) { mn = m->m_nextpkt; m->m_nextpkt = NULL; @@ -824,7 +825,8 @@ ether_input(struct ifnet *ifp, struct mbuf *m) netisr_dispatch(NETISR_ETHER, m); m = mn; } - NET_EPOCH_EXIT(et); + if (__predict_false(ifp->if_flags & IFF_NEEDSEPOCH)) + NET_EPOCH_EXIT(et); CURVNET_RESTORE(); }