From: Jeremy Fitzhardinge Date: Mon, 8 Jun 2009 10:14:59 +0000 (-0700) Subject: x86/ioapic.c: move lost comment to what seems like appropriate place X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=8e13d697febc1ba17e70ed88789255c8bc25aa41;p=linux-beck.git x86/ioapic.c: move lost comment to what seems like appropriate place The comment got separated from its subject, so move it to what appears to be the right place, and update to describe the current structure. Signed-off-by: Jeremy Fitzhardinge --- diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index ec52e0c045c4..a097a773bc76 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -116,13 +116,6 @@ static int __init parse_noapic(char *str) } early_param("noapic", parse_noapic); -/* - * This is performance-critical, we want to do it O(1) - * - * the indexing order of this array favors 1:1 mappings - * between pins and IRQs. - */ - struct irq_pin_list { int apic, pin; struct irq_pin_list *next; @@ -137,6 +130,11 @@ static struct irq_pin_list *get_one_free_irq_2_pin(int node) return pin; } +/* + * This is performance-critical, we want to do it O(1) + * + * Most irqs are mapped 1:1 with pins. + */ struct irq_cfg { struct irq_pin_list *irq_2_pin; cpumask_var_t domain;