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authorEduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>2008-07-25 19:45:11 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-26 12:00:04 -0700
commit7babe8db99d305340cf4828ce1f5a1481d5622ef (patch)
treefdac7a084646bb6d125ebc62b0b75806e45d1025 /kernel
parentc2147a5092cfe13dbf3210e54e8a622015edeecc (diff)
downloadlinux-7babe8db99d305340cf4828ce1f5a1481d5622ef.tar.bz2
Full conversion to early_initcall() interface, remove old interface
A previous patch added the early_initcall(), to allow a cleaner hooking of pre-SMP initcalls. Now we remove the older interface, converting all existing users to the new one. [akpm@linux-foundation.org: cleanups] [akpm@linux-foundation.org: build fix] [kosaki.motohiro@jp.fujitsu.com: warning fix] [kosaki.motohiro@jp.fujitsu.com: warning fix] Signed-off-by: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> Cc: Tom Zanussi <tzanussi@gmail.com> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/sched.c5
-rw-r--r--kernel/smp.c4
-rw-r--r--kernel/softirq.c3
-rw-r--r--kernel/softlockup.c25
4 files changed, 31 insertions, 6 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index 0047bd9b96aa..fde1a1026359 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -6389,7 +6389,7 @@ static struct notifier_block __cpuinitdata migration_notifier = {
.priority = 10
};
-void __init migration_init(void)
+static int __init migration_init(void)
{
void *cpu = (void *)(long)smp_processor_id();
int err;
@@ -6399,7 +6399,10 @@ void __init migration_init(void)
BUG_ON(err == NOTIFY_BAD);
migration_call(&migration_notifier, CPU_ONLINE, cpu);
register_cpu_notifier(&migration_notifier);
+
+ return err;
}
+early_initcall(migration_init);
#endif
#ifdef CONFIG_SMP
diff --git a/kernel/smp.c b/kernel/smp.c
index 462c785ca1ee..96fc7c0edc59 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -33,7 +33,7 @@ struct call_single_queue {
spinlock_t lock;
};
-void __cpuinit init_call_single_data(void)
+static int __cpuinit init_call_single_data(void)
{
int i;
@@ -43,7 +43,9 @@ void __cpuinit init_call_single_data(void)
spin_lock_init(&q->lock);
INIT_LIST_HEAD(&q->list);
}
+ return 0;
}
+early_initcall(init_call_single_data);
static void csd_flag_wait(struct call_single_data *data)
{
diff --git a/kernel/softirq.c b/kernel/softirq.c
index f6b03d56c2bf..c506f266a6b9 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -630,7 +630,7 @@ static struct notifier_block __cpuinitdata cpu_nfb = {
.notifier_call = cpu_callback
};
-__init int spawn_ksoftirqd(void)
+static __init int spawn_ksoftirqd(void)
{
void *cpu = (void *)(long)smp_processor_id();
int err = cpu_callback(&cpu_nfb, CPU_UP_PREPARE, cpu);
@@ -640,6 +640,7 @@ __init int spawn_ksoftirqd(void)
register_cpu_notifier(&cpu_nfb);
return 0;
}
+early_initcall(spawn_ksoftirqd);
#ifdef CONFIG_SMP
/*
diff --git a/kernel/softlockup.c b/kernel/softlockup.c
index 7bd8d1aadd5d..b75b492fbfcf 100644
--- a/kernel/softlockup.c
+++ b/kernel/softlockup.c
@@ -338,14 +338,33 @@ static struct notifier_block __cpuinitdata cpu_nfb = {
.notifier_call = cpu_callback
};
-__init void spawn_softlockup_task(void)
+static int __initdata nosoftlockup;
+
+static int __init nosoftlockup_setup(char *str)
+{
+ nosoftlockup = 1;
+ return 1;
+}
+__setup("nosoftlockup", nosoftlockup_setup);
+
+static int __init spawn_softlockup_task(void)
{
void *cpu = (void *)(long)smp_processor_id();
- int err = cpu_callback(&cpu_nfb, CPU_UP_PREPARE, cpu);
+ int err;
- BUG_ON(err == NOTIFY_BAD);
+ if (nosoftlockup)
+ return 0;
+
+ err = cpu_callback(&cpu_nfb, CPU_UP_PREPARE, cpu);
+ if (err == NOTIFY_BAD) {
+ BUG();
+ return 1;
+ }
cpu_callback(&cpu_nfb, CPU_ONLINE, cpu);
register_cpu_notifier(&cpu_nfb);
atomic_notifier_chain_register(&panic_notifier_list, &panic_block);
+
+ return 0;
}
+early_initcall(spawn_softlockup_task);