openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

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 <jeremy.fitzhardinge@citrix.com>
This commit is contained in:
Jeremy Fitzhardinge 2009-06-08 03:14:59 -07:00
parent 83c21bedf6
commit 8e13d697fe
1 changed files with 5 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
arch/x86/kernel/apic/io_apic.c
View File

@ -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;