MN10300: Make cpu_relax() invoke barrier()

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

diff --git a/init/main.c b/init/main.c
index 99ce94930b09302f7af89f75c07d7daa6a7ef668..ddada7acf363c9b4dda58913a3080da6462e4b09 100644 (file)
--- a/init/main.c
+++ b/init/main.c
@@ -52,12 +52,14 @@
 #include <linux/unwind.h>
 #include <linux/buffer_head.h>
 #include <linux/debug_locks.h>
+#include <linux/debugobjects.h>
 #include <linux/lockdep.h>
 #include <linux/pid_namespace.h>
 #include <linux/device.h>
 #include <linux/kthread.h>
 #include <linux/sched.h>
 #include <linux/signal.h>
+#include <linux/idr.h>
 
 #include <asm/io.h>
 #include <asm/bugs.h>
@@ -359,10 +361,31 @@ static void __init smp_init(void)
 #endif
 
 static inline void setup_per_cpu_areas(void) { }
+static inline void setup_nr_cpu_ids(void) { }
 static inline void smp_prepare_cpus(unsigned int maxcpus) { }
 
 #else
 
+#if NR_CPUS > BITS_PER_LONG
+cpumask_t cpu_mask_all __read_mostly = CPU_MASK_ALL;
+EXPORT_SYMBOL(cpu_mask_all);
+#endif
+
+/* Setup number of possible processor ids */
+int nr_cpu_ids __read_mostly = NR_CPUS;
+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;
+}
+
 #ifndef CONFIG_HAVE_SETUP_PER_CPU_AREA
 unsigned long __per_cpu_offset[NR_CPUS] __read_mostly;
 
@@ -437,7 +460,7 @@ static void noinline __init_refok rest_init(void)
        kernel_thread(kernel_init, NULL, CLONE_FS | CLONE_SIGHAND);
        numa_default_policy();
        pid = kernel_thread(kthreadd, NULL, CLONE_FS | CLONE_FILES);
-       kthreadd_task = find_task_by_pid(pid);
+       kthreadd_task = find_task_by_pid_ns(pid, &init_pid_ns);
        unlock_kernel();
 
        /*
@@ -500,7 +523,11 @@ static void __init boot_cpu_init(void)
        cpu_set(cpu, cpu_possible_map);
 }
 
-void __init __attribute__((weak)) smp_setup_processor_id(void)
+void __init __weak smp_setup_processor_id(void)
+{
+}
+
+void __init __weak thread_info_cache_init(void)
 {
 }
 
@@ -517,6 +544,7 @@ asmlinkage void __init start_kernel(void)
         */
        unwind_init();
        lockdep_init();
+       debug_objects_early_init();
        cgroup_init_early();
 
        local_irq_disable();
@@ -534,9 +562,11 @@ asmlinkage void __init start_kernel(void)
        printk(KERN_NOTICE);
        printk(linux_banner);
        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 */
 
        /*
@@ -572,6 +602,7 @@ asmlinkage void __init start_kernel(void)
        softirq_init();
        timekeeping_init();
        time_init();
+       sched_clock_init();
        profile_init();
        if (!irqs_disabled())
                printk("start_kernel(): bug: interrupts were enabled early\n");
@@ -610,6 +641,8 @@ asmlinkage void __init start_kernel(void)
        enable_debug_pagealloc();
        cpu_hotplug_init();
        kmem_cache_init();
+       debug_objects_mem_init();
+       idr_init_cache();
        setup_per_cpu_pageset();
        numa_policy_init();
        if (late_time_init)
@@ -623,6 +656,7 @@ asmlinkage void __init start_kernel(void)
        if (efi_enabled)
                efi_enter_virtual_mode();
 #endif
+       thread_info_cache_init();
        fork_init(num_physpages);
        proc_caches_init();
        buffer_init();
@@ -673,10 +707,8 @@ static void __init do_initcalls(void)
                int result;
 
                if (initcall_debug) {
-                       printk("Calling initcall 0x%p", *call);
-                       print_fn_descriptor_symbol(": %s()",
+                       print_fn_descriptor_symbol("calling  %s()\n",
                                        (unsigned long) *call);
-                       printk("\n");
                        t0 = ktime_get();
                }
 
@@ -686,15 +718,10 @@ static void __init do_initcalls(void)
                        t1 = ktime_get();
                        delta = ktime_sub(t1, t0);
 
-                       printk("initcall 0x%p", *call);
-                       print_fn_descriptor_symbol(": %s()",
+                       print_fn_descriptor_symbol("initcall %s()",
                                        (unsigned long) *call);
-                       printk(" returned %d.\n", result);
-
-                       printk("initcall 0x%p ran for %Ld msecs: ",
-                               *call, (unsigned long long)delta.tv64 >> 20);
-                       print_fn_descriptor_symbol("%s()\n",
-                               (unsigned long) *call);
+                       printk(" returned %d after %Ld msecs\n", result,
+                               (unsigned long long) delta.tv64 >> 20);
                }
 
                if (result && result != -ENODEV && initcall_debug) {
@@ -710,10 +737,9 @@ static void __init do_initcalls(void)
                        local_irq_enable();
                }
                if (msg) {
-                       printk(KERN_WARNING "initcall at 0x%p", *call);
-                       print_fn_descriptor_symbol(": %s()",
+                       print_fn_descriptor_symbol(KERN_WARNING "initcall %s()",
                                        (unsigned long) *call);
-                       printk(": returned with %s\n", msg);
+                       printk(" returned with %s\n", msg);
                }
        }
 
@@ -780,6 +806,8 @@ static int noinline init_post(void)
        (void) sys_dup(0);
        (void) sys_dup(0);
 
+       current->signal->flags |= SIGNAL_UNKILLABLE;
+
        if (ramdisk_execute_command) {
                run_init_process(ramdisk_execute_command);
                printk(KERN_WARNING "Failed to execute %s\n",
@@ -811,7 +839,7 @@ static int __init kernel_init(void * unused)
        /*
         * init can run on any cpu.
         */
-       set_cpus_allowed(current, CPU_MASK_ALL);
+       set_cpus_allowed_ptr(current, CPU_MASK_ALL_PTR);
        /*
         * Tell the world that we're going to be the grim
         * reaper of innocent orphaned children.