Author: attilio
Date: Mon May 16 23:35:14 2011
New Revision: 222002
URL: http://svn.freebsd.org/changeset/base/222002
Log:
Merge r221279,221280 from largeSMP project:
pmc_mask doesn't need to use memory barriers.
Reviewed by: fabient
Tested by: several
MFC after: 1 week
Modified:
head/sys/dev/hwpmc/hwpmc_mod.c
Modified: head/sys/dev/hwpmc/hwpmc_mod.c
==============================================================================
--- head/sys/dev/hwpmc/hwpmc_mod.c Mon May 16 23:20:12 2011
(r222001)
+++ head/sys/dev/hwpmc/hwpmc_mod.c Mon May 16 23:35:14 2011
(r222002)
@@ -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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