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| author | Ingo Molnar <mingo@elte.hu> | 2007-07-09 18:51:58 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2007-07-09 18:51:58 +0200 |
| commit | 1df21055e34b6a68d62cf0c524b9e52deebd7ead (patch) | |
| tree | b3611a364b289340d6b5016eba9f53a37b6b1de2 | |
| parent | 4da1ce6d9c7e2a6d9236bf4dcfd33cf506082794 (diff) | |
| download | linux-1df21055e34b6a68d62cf0c524b9e52deebd7ead.tar.bz2 | |
sched: add init_idle_bootup_task()
add the init_idle_bootup_task() callback to the bootup thread,
unused at the moment. (CFS will use it to switch the scheduling
class of the boot thread to the idle class)
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | include/linux/sched.h | 1 | ||||
| -rw-r--r-- | init/main.c | 5 | ||||
| -rw-r--r-- | kernel/sched.c | 5 |
3 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 4b912e753ca0..61a111fe2b7a 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -195,6 +195,7 @@ struct task_struct; extern void sched_init(void); extern void sched_init_smp(void); extern void init_idle(struct task_struct *idle, int cpu); +extern void init_idle_bootup_task(struct task_struct *idle); extern cpumask_t nohz_cpu_mask; #if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ) diff --git a/init/main.c b/init/main.c index eb8bdbae4fc7..0eb1c7463fe4 100644 --- a/init/main.c +++ b/init/main.c @@ -436,15 +436,16 @@ static void noinline __init_refok rest_init(void) /* * The boot idle thread must execute schedule() - * at least one to get things moving: + * at least once to get things moving: */ + init_idle_bootup_task(current); preempt_enable_no_resched(); schedule(); preempt_disable(); /* Call into cpu_idle with preempt disabled */ cpu_idle(); -} +} /* Check for early params. */ static int __init do_early_param(char *param, char *val) diff --git a/kernel/sched.c b/kernel/sched.c index 7090982350d3..ac4d26241d1e 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -5018,6 +5018,11 @@ void show_state_filter(unsigned long state_filter) debug_show_all_locks(); } +void __cpuinit init_idle_bootup_task(struct task_struct *idle) +{ + /* nothing yet */ +} + /** * init_idle - set up an idle thread for a given CPU * @idle: task in question |