x86: optimize lock prefix switching to run less frequently

[linux-2.6-omap-h63xx.git] / init / main.c

diff --git a/init/main.c b/init/main.c
index 3f8aba291ed31d098a8a5ae73904125bb5828be5..5843fe9967034050f59c0fcc3888e78b66f2374b 100644 (file)
--- a/init/main.c
+++ b/init/main.c
@@ -128,7 +128,7 @@ static char *ramdisk_execute_command;
 
 #ifdef CONFIG_SMP
 /* Setup configured maximum number of CPUs to activate */
-static unsigned int __initdata max_cpus = NR_CPUS;
+unsigned int __initdata setup_max_cpus = NR_CPUS;
 
 /*
  * Setup routine for controlling SMP activation
@@ -146,7 +146,7 @@ static inline void disable_ioapic_setup(void) {};
 
 static int __init nosmp(char *str)
 {
-       max_cpus = 0;
+       setup_max_cpus = 0;
        disable_ioapic_setup();
        return 0;
 }
@@ -155,8 +155,8 @@ early_param("nosmp", nosmp);
 
 static int __init maxcpus(char *str)
 {
-       get_option(&str, &max_cpus);
-       if (max_cpus == 0)
+       get_option(&str, &setup_max_cpus);
+       if (setup_max_cpus == 0)
                disable_ioapic_setup();
 
        return 0;
@@ -164,7 +164,7 @@ static int __init maxcpus(char *str)
 
 early_param("maxcpus", maxcpus);
 #else
-#define max_cpus NR_CPUS
+#define setup_max_cpus NR_CPUS
 #endif
 
 /*
@@ -393,7 +393,7 @@ static void __init smp_init(void)
 
        /* FIXME: This should be done in userspace --RR */
        for_each_present_cpu(cpu) {
-               if (num_online_cpus() >= max_cpus)
+               if (num_online_cpus() >= setup_max_cpus)
                        break;
                if (!cpu_online(cpu))
                        cpu_up(cpu);
@@ -401,7 +401,7 @@ static void __init smp_init(void)
 
        /* Any cleanup work */
        printk(KERN_INFO "Brought up %ld CPUs\n", (long)num_online_cpus());
-       smp_cpus_done(max_cpus);
+       smp_cpus_done(setup_max_cpus);
 }
 
 #endif
@@ -824,7 +824,7 @@ static int __init kernel_init(void * unused)
        __set_special_pids(1, 1);
        cad_pid = task_pid(current);
 
-       smp_prepare_cpus(max_cpus);
+       smp_prepare_cpus(setup_max_cpus);
 
        do_pre_smp_initcalls();