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genirq: disable irqpoll on -rt 

Creates long latencies for no value

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Ingo Molnar 2009-07-03 08:29:57 -05:00 committed by Alibek Omarov
parent 2153be5a12
commit 3e7ef5208f
1 changed files with 8 additions and 0 deletions
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8
kernel/irq/spurious.c
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@ -444,6 +444,10 @@ MODULE_PARM_DESC(noirqdebug, "Disable irq lockup detection when true");
static int __init irqfixup_setup(char *str)
{
#ifdef CONFIG_PREEMPT_RT_BASE
pr_warn("irqfixup boot option not supported w/ CONFIG_PREEMPT_RT_BASE\n");
return 1;
#endif
irqfixup = 1;
printk(KERN_WARNING "Misrouted IRQ fixup support enabled.\n");
printk(KERN_WARNING "This may impact system performance.\n");
@ -456,6 +460,10 @@ module_param(irqfixup, int, 0644);
static int __init irqpoll_setup(char *str)
{
#ifdef CONFIG_PREEMPT_RT_BASE
pr_warn("irqpoll boot option not supported w/ CONFIG_PREEMPT_RT_BASE\n");
return 1;
#endif
irqfixup = 2;
printk(KERN_WARNING "Misrouted IRQ fixup and polling support "
"enabled\n");