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-rw-r--r--init/main.c22
1 files changed, 13 insertions, 9 deletions
diff --git a/init/main.c b/init/main.c
index 9fc795fe4b3b..8a914b758e5d 100644
--- a/init/main.c
+++ b/init/main.c
@@ -51,7 +51,7 @@
#include <linux/mempolicy.h>
#include <linux/key.h>
#include <linux/buffer_head.h>
-#include <linux/page_cgroup.h>
+#include <linux/page_ext.h>
#include <linux/debug_locks.h>
#include <linux/debugobjects.h>
#include <linux/lockdep.h>
@@ -487,10 +487,10 @@ void __init __weak thread_info_cache_init(void)
static void __init mm_init(void)
{
/*
- * page_cgroup requires contiguous pages,
+ * page_ext requires contiguous pages,
* bigger than MAX_ORDER unless SPARSEMEM.
*/
- page_cgroup_init_flatmem();
+ page_ext_init_flatmem();
mem_init();
kmem_cache_init();
percpu_init_late();
@@ -502,13 +502,13 @@ asmlinkage __visible void __init start_kernel(void)
{
char *command_line;
char *after_dashes;
- extern const struct kernel_param __start___param[], __stop___param[];
/*
* Need to run as early as possible, to initialize the
* lockdep hash:
*/
lockdep_init();
+ set_task_stack_end_magic(&init_task);
smp_setup_processor_id();
debug_objects_early_init();
@@ -545,7 +545,7 @@ asmlinkage __visible void __init start_kernel(void)
static_command_line, __start___param,
__stop___param - __start___param,
-1, -1, &unknown_bootoption);
- if (after_dashes)
+ if (!IS_ERR_OR_NULL(after_dashes))
parse_args("Setting init args", after_dashes, NULL, 0, -1, -1,
set_init_arg);
@@ -578,13 +578,13 @@ asmlinkage __visible void __init start_kernel(void)
local_irq_disable();
idr_init_cache();
rcu_init();
- tick_nohz_init();
context_tracking_init();
radix_tree_init();
/* init some links before init_ISA_irqs() */
early_irq_init();
init_IRQ();
tick_init();
+ rcu_init_nohz();
init_timers();
hrtimers_init();
softirq_init();
@@ -628,7 +628,7 @@ asmlinkage __visible void __init start_kernel(void)
initrd_start = 0;
}
#endif
- page_cgroup_init();
+ page_ext_init();
debug_objects_mem_init();
kmemleak_init();
setup_per_cpu_pageset();
@@ -844,7 +844,6 @@ static char *initcall_level_names[] __initdata = {
static void __init do_initcall_level(int level)
{
- extern const struct kernel_param __start___param[], __stop___param[];
initcall_t *fn;
strcpy(initcall_command_line, saved_command_line);
@@ -961,8 +960,13 @@ static int __ref kernel_init(void *unused)
ret = run_init_process(execute_command);
if (!ret)
return 0;
+#ifndef CONFIG_INIT_FALLBACK
+ panic("Requested init %s failed (error %d).",
+ execute_command, ret);
+#else
pr_err("Failed to execute %s (error %d). Attempting defaults...\n",
- execute_command, ret);
+ execute_command, ret);
+#endif
}
if (!try_to_run_init_process("/sbin/init") ||
!try_to_run_init_process("/etc/init") ||