From owner-svn-src-stable-8@FreeBSD.ORG Sun May 29 02:09:09 2011 Return-Path: Delivered-To: svn-src-stable-8@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B012C106566B; Sun, 29 May 2011 02:09:09 +0000 (UTC) (envelope-from attilio@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c]) by mx1.freebsd.org (Postfix) with ESMTP id A03E18FC0A; Sun, 29 May 2011 02:09:09 +0000 (UTC) Received: from svn.freebsd.org (localhost [127.0.0.1]) by svn.freebsd.org (8.14.4/8.14.4) with ESMTP id p4T299Z9009968; Sun, 29 May 2011 02:09:09 GMT (envelope-from attilio@svn.freebsd.org) Received: (from attilio@localhost) by svn.freebsd.org (8.14.4/8.14.4/Submit) id p4T299nS009966; Sun, 29 May 2011 02:09:09 GMT (envelope-from attilio@svn.freebsd.org) Message-Id: <201105290209.p4T299nS009966@svn.freebsd.org> From: Attilio Rao Date: Sun, 29 May 2011 02:09:09 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org X-SVN-Group: stable-8 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: Subject: svn commit: r222436 - stable/8/sys/dev/hwpmc X-BeenThere: svn-src-stable-8@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SVN commit messages for only the 8-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 29 May 2011 02:09:09 -0000 Author: attilio Date: Sun May 29 02:09:09 2011 New Revision: 222436 URL: http://svn.freebsd.org/changeset/base/222436 Log: MFC r222002: Do not use memory barrier when is not necessary. Modified: stable/8/sys/dev/hwpmc/hwpmc_mod.c Directory Properties: stable/8/sys/ (props changed) stable/8/sys/amd64/include/xen/ (props changed) stable/8/sys/cddl/contrib/opensolaris/ (props changed) stable/8/sys/contrib/dev/acpica/ (props changed) stable/8/sys/contrib/pf/ (props changed) Modified: stable/8/sys/dev/hwpmc/hwpmc_mod.c ============================================================================== --- stable/8/sys/dev/hwpmc/hwpmc_mod.c Sun May 29 00:59:38 2011 (r222435) +++ stable/8/sys/dev/hwpmc/hwpmc_mod.c Sun May 29 02:09:09 2011 (r222436) @@ -4083,7 +4083,7 @@ pmc_process_interrupt(int cpu, struct pm done: /* mark CPU as needing processing */ - atomic_set_rel_int(&pmc_cpumask, (1 << cpu)); + atomic_set_int(&pmc_cpumask, (1 << cpu)); return (error); } @@ -4193,7 +4193,7 @@ pmc_process_samples(int cpu) break; if (ps->ps_nsamples == PMC_SAMPLE_INUSE) { /* Need a rescan at a later time. */ - atomic_set_rel_int(&pmc_cpumask, (1 << cpu)); + atomic_set_int(&pmc_cpumask, (1 << cpu)); break; } @@ -4782,7 +4782,7 @@ pmc_cleanup(void) PMCDBG(MOD,INI,0, "%s", "cleanup"); /* switch off sampling */ - atomic_store_rel_int(&pmc_cpumask, 0); + pmc_cpumask = 0; pmc_intr = NULL; sx_xlock(&pmc_sx);