[POWERPC] spufs: bind_context sets SPU_STATE_RUNNABLE

[powerpc.git] / init / main.c

diff --git a/init/main.c b/init/main.c
index 985c9ed..4e9e92b 100644 (file)
--- a/init/main.c
+++ b/init/main.c
@@ -50,6 +50,8 @@
 #include <linux/buffer_head.h>
 #include <linux/debug_locks.h>
 #include <linux/lockdep.h>
+#include <linux/pid_namespace.h>
+#include <linux/device.h>
 
 #include <asm/io.h>
 #include <asm/bugs.h>
@@ -74,6 +76,10 @@
 #error Sorry, your GCC is too old. It builds incorrect kernels.
 #endif
 
+#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 init(void *);
 
 extern void init_IRQ(void);
@@ -87,8 +93,6 @@ extern void pidmap_init(void);
 extern void prio_tree_init(void);
 extern void radix_tree_init(void);
 extern void free_initmem(void);
-extern void populate_rootfs(void);
-extern void driver_init(void);
 extern void prepare_namespace(void);
 #ifdef CONFIG_ACPI
 extern void acpi_early_init(void);
@@ -117,8 +121,12 @@ extern void time_init(void);
 void (*late_time_init)(void);
 extern void softirq_init(void);
 
-/* Untouched command line (eg. for /proc) saved by arch-specific code. */
-char saved_command_line[COMMAND_LINE_SIZE];
+/* Untouched command line saved by arch-specific code. */
+char __initdata boot_command_line[COMMAND_LINE_SIZE];
+/* Untouched saved command line (eg. for /proc) */
+char *saved_command_line;
+/* Command line for parameter parsing */
+static char *static_command_line;
 
 static char *execute_command;
 static char *ramdisk_execute_command;
@@ -391,15 +399,24 @@ 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);
-#if 0
-       /* Get other processors into their bootup holding patterns. */
-
-       smp_commence();
-#endif
 }
 
 #endif
 
+/*
+ * We need to store the untouched command line for future reference.
+ * We also need to store the touched command line since the parameter
+ * parsing is performed in place, and we should allow a component to
+ * store reference of name/value for future reference.
+ */
+static void __init setup_command_line(char *command_line)
+{
+       saved_command_line = alloc_bootmem(strlen (boot_command_line)+1);
+       static_command_line = alloc_bootmem(strlen (command_line)+1);
+       strcpy (saved_command_line, boot_command_line);
+       strcpy (static_command_line, command_line);
+}
+
 /*
  * We need to finalize in a non-__init function or else race conditions
  * between the root thread and the init thread may cause start_kernel to
@@ -454,7 +471,7 @@ void __init parse_early_param(void)
                return;
 
        /* All fall through to do_early_param. */
-       strlcpy(tmp_cmdline, saved_command_line, COMMAND_LINE_SIZE);
+       strlcpy(tmp_cmdline, boot_command_line, COMMAND_LINE_SIZE);
        parse_args("early options", tmp_cmdline, NULL, 0, do_early_param);
        done = 1;
 }
@@ -504,6 +521,7 @@ asmlinkage void __init start_kernel(void)
        printk(KERN_NOTICE);
        printk(linux_banner);
        setup_arch(&command_line);
+       setup_command_line(command_line);
        unwind_setup();
        setup_per_cpu_areas();
        smp_prepare_boot_cpu(); /* arch-specific boot-cpu hooks */
@@ -521,11 +539,16 @@ asmlinkage void __init start_kernel(void)
        preempt_disable();
        build_all_zonelists();
        page_alloc_init();
-       printk(KERN_NOTICE "Kernel command line: %s\n", saved_command_line);
+       printk(KERN_NOTICE "Kernel command line: %s\n", boot_command_line);
        parse_early_param();
-       parse_args("Booting kernel", command_line, __start___param,
+       parse_args("Booting kernel", static_command_line, __start___param,
                   __stop___param - __start___param,
                   &unknown_bootoption);
+       if (!irqs_disabled()) {
+               printk(KERN_WARNING "start_kernel(): bug: interrupts were "
+                               "enabled *very* early, fixing it\n");
+               local_irq_disable();
+       }
        sort_main_extable();
        trap_init();
        rcu_init();
@@ -620,8 +643,6 @@ static int __init initcall_debug_setup(char *str)
 }
 __setup("initcall_debug", initcall_debug_setup);
 
-struct task_struct *child_reaper = &init_task;
-
 extern initcall_t __initcall_start[], __initcall_end[];
 
 static void __init do_initcalls(void)
@@ -688,7 +709,7 @@ static void __init do_basic_setup(void)
        do_initcalls();
 }
 
-static void do_pre_smp_initcalls(void)
+static void __init do_pre_smp_initcalls(void)
 {
        extern int spawn_ksoftirqd(void);
 #ifdef CONFIG_SMP
@@ -721,7 +742,7 @@ static int init(void * unused)
         * assumptions about where in the task array this
         * can be found.
         */
-       child_reaper = current;
+       init_pid_ns.child_reaper = current;
 
        cad_pid = task_pid(current);
 
@@ -734,12 +755,6 @@ static int init(void * unused)
 
        cpuset_init_smp();
 
-       /*
-        * Do this before initcalls, because some drivers want to access
-        * firmware files.
-        */
-       populate_rootfs();
-
        do_basic_setup();
 
        /*