diff options
Diffstat (limited to 'debian/patches-rt/0070-genirq-Disable-irqpoll-on-rt.patch')
| -rw-r--r-- | debian/patches-rt/0070-genirq-Disable-irqpoll-on-rt.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/debian/patches-rt/0070-genirq-Disable-irqpoll-on-rt.patch b/debian/patches-rt/0070-genirq-Disable-irqpoll-on-rt.patch new file mode 100644 index 000000000..1bb671732 --- /dev/null +++ b/debian/patches-rt/0070-genirq-Disable-irqpoll-on-rt.patch @@ -0,0 +1,43 @@ +From 9e5ed96dec7a2d9bf3359966eec008c2434610d6 Mon Sep 17 00:00:00 2001 +From: Ingo Molnar <mingo@elte.hu> +Date: Fri, 3 Jul 2009 08:29:57 -0500 +Subject: [PATCH 070/347] genirq: Disable irqpoll on -rt +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.246-rt110.tar.xz + +Creates long latencies for no value + +Signed-off-by: Ingo Molnar <mingo@elte.hu> +Signed-off-by: Thomas Gleixner <tglx@linutronix.de> +--- + kernel/irq/spurious.c | 8 ++++++++ + 1 file changed, 8 insertions(+) + +diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c +index d867d6ddafdd..cd12ee86c01e 100644 +--- a/kernel/irq/spurious.c ++++ b/kernel/irq/spurious.c +@@ -442,6 +442,10 @@ 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"); +@@ -454,6 +458,10 @@ 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"); +-- +2.36.1 + |