| From b4a6ae6437a9853d451aefc835382963a36b267b Mon Sep 17 00:00:00 2001 |
| From: Thomas Gleixner <tglx@linutronix.de> |
| Date: Tue, 21 Jul 2009 16:07:37 +0200 |
| Subject: [PATCH 080/274] genirq: Disable random call on preempt-rt |
| |
| The random call introduces high latencies and is almost |
| unused. Disable it for -rt. |
| |
| Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
| --- |
| kernel/irq/handle.c | 3 +++ |
| 1 file changed, 3 insertions(+) |
| |
| diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c |
| index 131ca17..311c4e6 100644 |
| --- a/kernel/irq/handle.c |
| +++ b/kernel/irq/handle.c |
| @@ -172,7 +172,10 @@ handle_irq_event_percpu(struct irq_desc *desc, struct irqaction *action) |
| action = action->next; |
| } while (action); |
| |
| +#ifndef CONFIG_PREEMPT_RT_FULL |
| + /* FIXME: Can we unbreak that ? */ |
| add_interrupt_randomness(irq, flags); |
| +#endif |
| |
| if (!noirqdebug) |
| note_interrupt(irq, desc, retval); |
| -- |
| 1.7.10.4 |
| |
