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-rw-r--r--init/main.c85
1 files changed, 61 insertions, 24 deletions
diff --git a/init/main.c b/init/main.c
index d721dad05dd7..2c5ade79eb81 100644
--- a/init/main.c
+++ b/init/main.c
@@ -24,6 +24,7 @@
#include <linux/smp_lock.h>
#include <linux/initrd.h>
#include <linux/bootmem.h>
+#include <linux/acpi.h>
#include <linux/tty.h>
#include <linux/gfp.h>
#include <linux/percpu.h>
@@ -56,6 +57,7 @@
#include <linux/debug_locks.h>
#include <linux/debugobjects.h>
#include <linux/lockdep.h>
+#include <linux/kmemleak.h>
#include <linux/pid_namespace.h>
#include <linux/device.h>
#include <linux/kthread.h>
@@ -64,6 +66,8 @@
#include <linux/idr.h>
#include <linux/ftrace.h>
#include <linux/async.h>
+#include <linux/kmemcheck.h>
+#include <linux/kmemtrace.h>
#include <trace/boot.h>
#include <asm/io.h>
@@ -71,7 +75,6 @@
#include <asm/setup.h>
#include <asm/sections.h>
#include <asm/cacheflush.h>
-#include <trace/kmemtrace.h>
#ifdef CONFIG_X86_LOCAL_APIC
#include <asm/smp.h>
@@ -86,11 +89,6 @@ extern void sbus_init(void);
extern void prio_tree_init(void);
extern void radix_tree_init(void);
extern void free_initmem(void);
-#ifdef CONFIG_ACPI
-extern void acpi_early_init(void);
-#else
-static inline void acpi_early_init(void) { }
-#endif
#ifndef CONFIG_DEBUG_RODATA
static inline void mark_rodata_ro(void) { }
#endif
@@ -533,6 +531,22 @@ void __init __weak thread_info_cache_init(void)
{
}
+/*
+ * Set up kernel memory allocators
+ */
+static void __init mm_init(void)
+{
+ /*
+ * page_cgroup requires countinous pages as memmap
+ * and it's bigger than MAX_ORDER unless SPARSEMEM.
+ */
+ page_cgroup_init_flatmem();
+ mem_init();
+ kmem_cache_init();
+ pgtable_cache_init();
+ vmalloc_init();
+}
+
asmlinkage void __init start_kernel(void)
{
char * command_line;
@@ -574,6 +588,23 @@ asmlinkage void __init start_kernel(void)
setup_nr_cpu_ids();
smp_prepare_boot_cpu(); /* arch-specific boot-cpu hooks */
+ build_all_zonelists();
+ page_alloc_init();
+
+ printk(KERN_NOTICE "Kernel command line: %s\n", boot_command_line);
+ parse_early_param();
+ parse_args("Booting kernel", static_command_line, __start___param,
+ __stop___param - __start___param,
+ &unknown_bootoption);
+ /*
+ * These use large bootmem allocations and must precede
+ * kmem_cache_init()
+ */
+ pidhash_init();
+ vfs_caches_init_early();
+ sort_main_extable();
+ trap_init();
+ mm_init();
/*
* Set up the scheduler prior starting any interrupts (such as the
* timer interrupt). Full topology setup happens at smp_init()
@@ -585,25 +616,16 @@ asmlinkage void __init start_kernel(void)
* fragile until we cpu_idle() for the first time.
*/
preempt_disable();
- build_all_zonelists();
- page_alloc_init();
- printk(KERN_NOTICE "Kernel command line: %s\n", boot_command_line);
- parse_early_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();
/* init some links before init_ISA_irqs() */
early_irq_init();
init_IRQ();
- pidhash_init();
+ prio_tree_init();
init_timers();
hrtimers_init();
softirq_init();
@@ -617,6 +639,11 @@ asmlinkage void __init start_kernel(void)
early_boot_irqs_on();
local_irq_enable();
+ /* Interrupts are enabled now so all GFP allocations are safe. */
+ set_gfp_allowed_mask(__GFP_BITS_MASK);
+
+ kmem_cache_init_late();
+
/*
* HACK ALERT! This is early. We're enabling the console before
* we've done PCI setups etc, and console_init() must be aware of
@@ -645,15 +672,10 @@ asmlinkage void __init start_kernel(void)
initrd_start = 0;
}
#endif
- vmalloc_init();
- vfs_caches_init_early();
- cpuset_init_early();
page_cgroup_init();
- mem_init();
enable_debug_pagealloc();
- cpu_hotplug_init();
- kmem_cache_init();
kmemtrace_init();
+ kmemleak_init();
debug_objects_mem_init();
idr_init_cache();
setup_per_cpu_pageset();
@@ -662,8 +684,6 @@ asmlinkage void __init start_kernel(void)
late_time_init();
calibrate_delay();
pidmap_init();
- pgtable_cache_init();
- prio_tree_init();
anon_vma_init();
#ifdef CONFIG_X86
if (efi_enabled)
@@ -699,6 +719,17 @@ asmlinkage void __init start_kernel(void)
rest_init();
}
+/* Call all constructor functions linked into the kernel. */
+static void __init do_ctors(void)
+{
+#ifdef CONFIG_CONSTRUCTORS
+ ctor_fn_t *call = (ctor_fn_t *) __ctors_start;
+
+ for (; call < (ctor_fn_t *) __ctors_end; call++)
+ (*call)();
+#endif
+}
+
int initcall_debug;
core_param(initcall_debug, initcall_debug, bool, 0644);
@@ -779,6 +810,7 @@ static void __init do_basic_setup(void)
usermodehelper_init();
driver_init();
init_irq_proc();
+ do_ctors();
do_initcalls();
}
@@ -846,6 +878,11 @@ static noinline int init_post(void)
static int __init kernel_init(void * unused)
{
lock_kernel();
+
+ /*
+ * init can allocate pages on any node
+ */
+ set_mems_allowed(node_possible_map);
/*
* init can run on any cpu.
*/