1 files changed, 15 insertions, 10 deletions

diff --git a/init/main.c b/init/main.c
index f287ca5862b9..cb81ed116f62 100644
--- 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
 
 /*
@@ -318,6 +318,10 @@ static int __init unknown_bootoption(char *param, char *val)
         return 0;
 }
 
+#ifdef CONFIG_DEBUG_PAGEALLOC
+int __read_mostly debug_pagealloc_enabled = 0;
+#endif
+
 static int __init init_setup(char *str)
 {
         unsigned int i;
@@ -363,7 +367,7 @@ static inline void smp_prepare_cpus(unsigned int maxcpus) { }
 
 #else
 
-#ifdef __GENERIC_PER_CPU
+#ifndef CONFIG_HAVE_SETUP_PER_CPU_AREA
 unsigned long __per_cpu_offset[NR_CPUS] __read_mostly;
 
 EXPORT_SYMBOL(__per_cpu_offset);
@@ -384,7 +388,7 @@ static void __init setup_per_cpu_areas(void)
                 ptr += size;
         }
 }
-#endif /* !__GENERIC_PER_CPU */
+#endif /* CONFIG_HAVE_SETUP_PER_CPU_AREA */
 
 /* Called by boot processor to activate the rest. */
 static void __init smp_init(void)
@@ -393,7 +397,7 @@ 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 +405,7 @@ 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
@@ -552,6 +556,7 @@ asmlinkage void __init start_kernel(void)
         preempt_disable();
         build_all_zonelists();
         page_alloc_init();
+        enable_debug_pagealloc();
         printk(KERN_NOTICE "Kernel command line: %s\n", boot_command_line);
         parse_early_param();
         parse_args("Booting kernel", static_command_line, __start___param,
@@ -824,7 +829,7 @@ 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();