Merge branch 'core/percpu' into stackprotector

[net-next-2.6.git] / init / main.c

diff --git a/init/main.c b/init/main.c
index 07da4dea50c3f86b60beb3202450b1444b83dcc6..bfe4fb0c98428bdb4cfc9fb4b2a6cbb1084a0da1 100644 (file)
--- a/init/main.c
+++ b/init/main.c
@@ -51,7 +51,6 @@
 #include <linux/rmap.h>
 #include <linux/mempolicy.h>
 #include <linux/key.h>
-#include <linux/unwind.h>
 #include <linux/buffer_head.h>
 #include <linux/page_cgroup.h>
 #include <linux/debug_locks.h>
@@ -64,6 +63,7 @@
 #include <linux/signal.h>
 #include <linux/idr.h>
 #include <linux/ftrace.h>
+#include <linux/async.h>
 #include <trace/boot.h>
 
 #include <asm/io.h>
@@ -76,15 +76,6 @@
 #include <asm/smp.h>
 #endif
 
-/*
- * This is one of the first .c files built. Error out early if we have compiler
- * trouble.
- */
-
-#if __GNUC__ == 4 && __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ == 0
-#warning gcc-4.1.0 is known to miscompile the kernel.  A different compiler version is recommended.
-#endif
-
 static int kernel_init(void *);
 
 extern void init_IRQ(void);
@@ -118,7 +109,7 @@ EXPORT_SYMBOL(system_state);
 
 extern void time_init(void);
 /* Default late time init is NULL. archs can override this later. */
-void (*late_time_init)(void);
+void (*__initdata late_time_init)(void);
 extern void softirq_init(void);
 
 /* Untouched command line saved by arch-specific code. */
@@ -381,12 +372,7 @@ EXPORT_SYMBOL(nr_cpu_ids);
 /* An arch may set nr_cpu_ids earlier if needed, so this would be redundant */
 static void __init setup_nr_cpu_ids(void)
 {
-       int cpu, highest_cpu = 0;
-
-       for_each_possible_cpu(cpu)
-               highest_cpu = cpu;
-
-       nr_cpu_ids = highest_cpu + 1;
+       nr_cpu_ids = find_last_bit(cpumask_bits(cpu_possible_mask),NR_CPUS) + 1;
 }
 
 #ifndef CONFIG_HAVE_SETUP_PER_CPU_AREA
@@ -462,7 +448,7 @@ static void __init setup_command_line(char *command_line)
  * gcc-3.4 accidentally inlines this function, so use noinline.
  */
 
-static void noinline __init_refok rest_init(void)
+static noinline void __init_refok rest_init(void)
        __releases(kernel_lock)
 {
        int pid;
@@ -528,9 +514,9 @@ static void __init boot_cpu_init(void)
 {
        int cpu = smp_processor_id();
        /* Mark the boot cpu "present", "online" etc for SMP and UP case */
-       cpu_set(cpu, cpu_online_map);
-       cpu_set(cpu, cpu_present_map);
-       cpu_set(cpu, cpu_possible_map);
+       set_cpu_online(cpu, true);
+       set_cpu_present(cpu, true);
+       set_cpu_possible(cpu, true);
 }
 
 void __init __weak smp_setup_processor_id(void)
@@ -541,15 +527,6 @@ void __init __weak thread_info_cache_init(void)
 {
 }
 
-void __init __weak arch_early_irq_init(void)
-{
-}
-
-void __init __weak early_irq_init(void)
-{
-       arch_early_irq_init();
-}
-
 asmlinkage void __init start_kernel(void)
 {
        char * command_line;
@@ -561,7 +538,6 @@ asmlinkage void __init start_kernel(void)
         * Need to run as early as possible, to initialize the
         * lockdep hash:
         */
-       unwind_init();
        lockdep_init();
        debug_objects_early_init();
 
@@ -589,7 +565,6 @@ asmlinkage void __init start_kernel(void)
        setup_arch(&command_line);
        mm_init_owner(&init_mm, &init_task);
        setup_command_line(command_line);
-       unwind_setup();
        setup_per_cpu_areas();
        setup_nr_cpu_ids();
        smp_prepare_boot_cpu(); /* arch-specific boot-cpu hooks */
@@ -632,7 +607,8 @@ asmlinkage void __init start_kernel(void)
        sched_clock_init();
        profile_init();
        if (!irqs_disabled())
-               printk("start_kernel(): bug: interrupts were enabled early\n");
+               printk(KERN_CRIT "start_kernel(): bug: interrupts were "
+                                "enabled early\n");
        early_boot_irqs_on();
        local_irq_enable();
 
@@ -717,7 +693,7 @@ asmlinkage void __init start_kernel(void)
        rest_init();
 }
 
-static int initcall_debug;
+int initcall_debug;
 core_param(initcall_debug, initcall_debug, bool, 0644);
 
 int do_one_initcall(initcall_t fn)
@@ -816,8 +792,10 @@ static void run_init_process(char *init_filename)
 /* This is a non __init function. Force it to be noinline otherwise gcc
  * makes it inline to init() and it becomes part of init.text section
  */
-static int noinline init_post(void)
+static noinline int init_post(void)
 {
+       /* need to finish all async __init code before freeing the memory */
+       async_synchronize_full();
        free_initmem();
        unlock_kernel();
        mark_rodata_ro();