Messages in this thread Patch in this message | | | From | Gregory Haskins <> | Subject | [PATCH 2/5] RT - fix reschedule IPI | Date | Tue, 09 Oct 2007 10:25:54 -0400 |
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From: Mike Kravetz <kravetz@us.ibm.com>
x86_64 based RESCHED_IPIs fail to set the reschedule flag
Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Gregory Haskins <ghaskins@novell.com> ---
arch/x86_64/kernel/smp.c | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/x86_64/kernel/smp.c b/arch/x86_64/kernel/smp.c index a5bf746..3ce6cad 100644 --- a/arch/x86_64/kernel/smp.c +++ b/arch/x86_64/kernel/smp.c @@ -505,13 +505,13 @@ void smp_send_stop(void) } /* - * Reschedule call back. Nothing to do, - * all the work is done automatically when - * we return from the interrupt. + * Reschedule call back. Trigger a reschedule pass so that + * RT-overload balancing can pass tasks around. */ asmlinkage void smp_reschedule_interrupt(void) { ack_APIC_irq(); + set_tsk_need_resched(current); } asmlinkage void smp_call_function_interrupt(void) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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