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authorIngo Molnar <mingo@elte.hu>2008-12-31 08:31:57 +0100
committerIngo Molnar <mingo@elte.hu>2008-12-31 08:31:57 +0100
commita9de18eb761f7c1c860964b2e5addc1a35c7e861 (patch)
tree886e75fdfd09690cd262ca69cb7f5d1d42b48602 /init/main.c
parentb2aaf8f74cdc84a9182f6cabf198b7763bcb9d40 (diff)
parent6a94cb73064c952255336cc57731904174b2c58f (diff)
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Merge branch 'linus' into stackprotector
Conflicts: arch/x86/include/asm/pda.h kernel/fork.c
Diffstat (limited to 'init/main.c')
-rw-r--r--init/main.c65
1 files changed, 42 insertions, 23 deletions
diff --git a/init/main.c b/init/main.c
index 6aaff34..07da4de 100644
--- a/init/main.c
+++ b/init/main.c
@@ -28,6 +28,7 @@
#include <linux/gfp.h>
#include <linux/percpu.h>
#include <linux/kmod.h>
+#include <linux/vmalloc.h>
#include <linux/kernel_stat.h>
#include <linux/start_kernel.h>
#include <linux/security.h>
@@ -52,6 +53,7 @@
#include <linux/key.h>
#include <linux/unwind.h>
#include <linux/buffer_head.h>
+#include <linux/page_cgroup.h>
#include <linux/debug_locks.h>
#include <linux/debugobjects.h>
#include <linux/lockdep.h>
@@ -61,6 +63,8 @@
#include <linux/sched.h>
#include <linux/signal.h>
#include <linux/idr.h>
+#include <linux/ftrace.h>
+#include <trace/boot.h>
#include <asm/io.h>
#include <asm/bugs.h>
@@ -537,6 +541,15 @@ 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;
@@ -607,6 +620,8 @@ asmlinkage void __init start_kernel(void)
sort_main_extable();
trap_init();
rcu_init();
+ /* init some links before init_ISA_irqs() */
+ early_irq_init();
init_IRQ();
pidhash_init();
init_timers();
@@ -649,8 +664,10 @@ 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();
@@ -671,10 +688,10 @@ asmlinkage void __init start_kernel(void)
efi_enter_virtual_mode();
#endif
thread_info_cache_init();
+ cred_init();
fork_init(num_physpages);
proc_caches_init();
buffer_init();
- unnamed_dev_init();
key_init();
security_init();
vfs_caches_init(num_physpages);
@@ -694,46 +711,47 @@ asmlinkage void __init start_kernel(void)
acpi_early_init(); /* before LAPIC and SMP init */
+ ftrace_init();
+
/* Do the rest non-__init'ed, we're now alive */
rest_init();
}
static int initcall_debug;
-
-static int __init initcall_debug_setup(char *str)
-{
- initcall_debug = 1;
- return 1;
-}
-__setup("initcall_debug", initcall_debug_setup);
+core_param(initcall_debug, initcall_debug, bool, 0644);
int do_one_initcall(initcall_t fn)
{
int count = preempt_count();
- ktime_t t0, t1, delta;
+ ktime_t calltime, delta, rettime;
char msgbuf[64];
- int result;
+ struct boot_trace_call call;
+ struct boot_trace_ret ret;
if (initcall_debug) {
- printk("calling %pF @ %i\n", fn, task_pid_nr(current));
- t0 = ktime_get();
+ call.caller = task_pid_nr(current);
+ printk("calling %pF @ %i\n", fn, call.caller);
+ calltime = ktime_get();
+ trace_boot_call(&call, fn);
+ enable_boot_trace();
}
- result = fn();
+ ret.result = fn();
if (initcall_debug) {
- t1 = ktime_get();
- delta = ktime_sub(t1, t0);
-
- printk("initcall %pF returned %d after %Ld msecs\n",
- fn, result,
- (unsigned long long) delta.tv64 >> 20);
+ disable_boot_trace();
+ rettime = ktime_get();
+ delta = ktime_sub(rettime, calltime);
+ ret.duration = (unsigned long long) ktime_to_ns(delta) >> 10;
+ trace_boot_ret(&ret, fn);
+ printk("initcall %pF returned %d after %Ld usecs\n", fn,
+ ret.result, ret.duration);
}
msgbuf[0] = 0;
- if (result && result != -ENODEV && initcall_debug)
- sprintf(msgbuf, "error code %d ", result);
+ if (ret.result && ret.result != -ENODEV && initcall_debug)
+ sprintf(msgbuf, "error code %d ", ret.result);
if (preempt_count() != count) {
strlcat(msgbuf, "preemption imbalance ", sizeof(msgbuf));
@@ -747,7 +765,7 @@ int do_one_initcall(initcall_t fn)
printk("initcall %pF returned with %s\n", fn, msgbuf);
}
- return result;
+ return ret.result;
}
@@ -774,7 +792,6 @@ static void __init do_initcalls(void)
static void __init do_basic_setup(void)
{
rcu_init_sched(); /* needed by module_init stage. */
- /* drivers will send hotplug events */
init_workqueues();
usermodehelper_init();
driver_init();
@@ -862,6 +879,7 @@ static int __init kernel_init(void * unused)
smp_prepare_cpus(setup_max_cpus);
do_pre_smp_initcalls();
+ start_boot_trace();
smp_init();
sched_init_smp();
@@ -888,6 +906,7 @@ static int __init kernel_init(void * unused)
* we're essentially up and running. Get rid of the
* initmem segments and start the user-mode stuff..
*/
+
init_post();
return 0;
}