Messages in this thread | | | Subject | Re: [PATCH 4/5] mm: Only IPI CPUs to drain local pages if they exist | From | Peter Zijlstra <> | Date | Mon, 26 Sep 2011 09:28:34 +0200 |
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On Sun, 2011-09-25 at 11:54 +0300, Gilad Ben-Yossef wrote: > +static inline void inc_pcp_count(int cpu, struct per_cpu_pages *pcp, int count) > +{ > + if (unlikely(!total_cpu_pcp_count))
if (unlikely(!__this_cpu_read(total_cpu_pco_count))
> + cpumask_set_cpu(cpu, cpus_with_pcp); > + > + total_cpu_pcp_count += count;
__this_cpu_add(total_cpu_pcp_count, count);
> + pcp->count += count; > +} > + > +static inline void dec_pcp_count(int cpu, struct per_cpu_pages *pcp, int count) > +{ > + pcp->count -= count; > + total_cpu_pcp_count -= count;
__this_cpu_sub(total_cpu_pcp_count, count);
> + > + if (unlikely(!total_cpu_pcp_count))
if (unlikely(!__this_cpu_read(total_cpu_pcp_count))
> + cpumask_clear_cpu(cpu, cpus_with_pcp); > +}
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