header cleaning: don't include smp_lock.h when not used

[GitHub/MotorolaMobilityLLC/kernel-slsi.git] / arch / i386 / kernel / smp.c

diff --git a/arch/i386/kernel/smp.c b/arch/i386/kernel/smp.c
index f8667109db1c6b5deaa9afd21973ebcf099e30d3..93f202a855fa43e4ea3b831513015545b5287afc 100644 (file)
--- a/arch/i386/kernel/smp.c
+++ b/arch/i386/kernel/smp.c
@@ -13,7 +13,6 @@
 #include <linux/mm.h>
 #include <linux/delay.h>
 #include <linux/spinlock.h>
-#include <linux/smp_lock.h>
 #include <linux/kernel_stat.h>
 #include <linux/mc146818rtc.h>
 #include <linux/cache.h>
@@ -359,10 +358,12 @@ void native_flush_tlb_others(const cpumask_t *cpumaskp, struct mm_struct *mm,
        BUG_ON(cpu_isset(smp_processor_id(), cpumask));
        BUG_ON(!mm);
 
+#ifdef CONFIG_HOTPLUG_CPU
        /* If a CPU which we ran on has gone down, OK. */
        cpus_and(cpumask, cpumask, cpu_online_map);
-       if (cpus_empty(cpumask))
+       if (unlikely(cpus_empty(cpumask)))
                return;
+#endif
 
        /*
         * i'm not happy about this global shared spinlock in the
@@ -373,17 +374,7 @@ void native_flush_tlb_others(const cpumask_t *cpumaskp, struct mm_struct *mm,
        
        flush_mm = mm;
        flush_va = va;
-#if NR_CPUS <= BITS_PER_LONG
-       atomic_set_mask(cpumask, &flush_cpumask);
-#else
-       {
-               int k;
-               unsigned long *flush_mask = (unsigned long *)&flush_cpumask;
-               unsigned long *cpu_mask = (unsigned long *)&cpumask;
-               for (k = 0; k < BITS_TO_LONGS(NR_CPUS); ++k)
-                       atomic_set_mask(cpu_mask[k], &flush_mask[k]);
-       }
-#endif
+       cpus_or(flush_cpumask, cpumask, flush_cpumask);
        /*
         * We have to send the IPI only to
         * CPUs affected.