Date: Sun, 29 May 2011 02:09:09 +0000 (UTC) From: Attilio Rao <attilio@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r222436 - stable/8/sys/dev/hwpmc Message-ID: <201105290209.p4T299nS009966@svn.freebsd.org>
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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);
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