Date: Sat, 30 Apr 2011 22:33:11 +0000 (UTC) From: Attilio Rao <attilio@FreeBSD.org> To: src-committers@freebsd.org, svn-src-projects@freebsd.org Subject: svn commit: r221279 - projects/largeSMP/sys/dev/hwpmc Message-ID: <201104302233.p3UMXBtr065201@svn.freebsd.org>
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Author: attilio Date: Sat Apr 30 22:33:11 2011 New Revision: 221279 URL: http://svn.freebsd.org/changeset/base/221279 Log: Remove unnecessary usage of memory barriers when dealing with pmc_cpumask. Discussed with: fabient Modified: projects/largeSMP/sys/dev/hwpmc/hwpmc_mod.c Modified: projects/largeSMP/sys/dev/hwpmc/hwpmc_mod.c ============================================================================== --- projects/largeSMP/sys/dev/hwpmc/hwpmc_mod.c Sat Apr 30 22:30:18 2011 (r221278) +++ projects/largeSMP/sys/dev/hwpmc/hwpmc_mod.c Sat Apr 30 22:33:11 2011 (r221279) @@ -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); + atomic_store_int(&pmc_cpumask, 0); pmc_intr = NULL; sx_xlock(&pmc_sx);
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