Messages in this thread Patch in this message | | | Date | Mon, 4 Jun 2012 17:15:30 +0200 (CEST) | From | Thomas Gleixner <> | Subject | [GIT pull] smp updates for 3.5 |
| |
Linus,
please pull the latest smp-hotplug-for-linus git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git smp-hotplug-for-linus
Thanks,
tglx
------------------> Srivatsa S. Bhat (2): smpboot, idle: Optimize calls to smp_processor_id() in idle_threads_init() smpboot, idle: Fix comment mismatch over idle_threads_init()
kernel/smpboot.c | 17 +++++++++++------ 1 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/kernel/smpboot.c b/kernel/smpboot.c index e1a797e..98f60c5 100644 --- a/kernel/smpboot.c +++ b/kernel/smpboot.c @@ -31,6 +31,12 @@ void __init idle_thread_set_boot_cpu(void) per_cpu(idle_threads, smp_processor_id()) = current; } +/** + * idle_init - Initialize the idle thread for a cpu + * @cpu: The cpu for which the idle thread should be initialized + * + * Creates the thread if it does not exist. + */ static inline void idle_init(unsigned int cpu) { struct task_struct *tsk = per_cpu(idle_threads, cpu); @@ -45,17 +51,16 @@ static inline void idle_init(unsigned int cpu) } /** - * idle_thread_init - Initialize the idle thread for a cpu - * @cpu: The cpu for which the idle thread should be initialized - * - * Creates the thread if it does not exist. + * idle_threads_init - Initialize idle threads for all cpus */ void __init idle_threads_init(void) { - unsigned int cpu; + unsigned int cpu, boot_cpu; + + boot_cpu = smp_processor_id(); for_each_possible_cpu(cpu) { - if (cpu != smp_processor_id()) + if (cpu != boot_cpu) idle_init(cpu); } }
| |