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authorIngo Molnar <mingo@elte.hu>2009-01-18 18:37:14 +0100
committerIngo Molnar <mingo@elte.hu>2009-01-18 18:37:14 +0100
commitb2b062b8163391c42b3219d466ca1ac9742b9c7b (patch)
treef3f920c09b8de694b1bc1d4b878cfd2b0b98c913 /init/main.c
parentMerge branch 'linus' into stackprotector (diff)
parentMerge branch 'tj-percpu' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc into core/percpu (diff)
downloadlinux-dev-b2b062b8163391c42b3219d466ca1ac9742b9c7b.tar.xz
linux-dev-b2b062b8163391c42b3219d466ca1ac9742b9c7b.zip
Merge branch 'core/percpu' into stackprotector
Conflicts: arch/x86/include/asm/pda.h arch/x86/include/asm/system.h Also, moved include/asm-x86/stackprotector.h to arch/x86/include/asm. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'init/main.c')
-rw-r--r--init/main.c48
1 files changed, 13 insertions, 35 deletions
diff --git a/init/main.c b/init/main.c
index 07da4dea50c3..bfe4fb0c9842 100644
--- 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();