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authorThomas Gleixner <tglx@linutronix.de>2007-02-16 01:27:24 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-16 08:13:56 -0800
commit950f4427c2ddc921164088a20f01304cf231437c (patch)
tree8fd3fb1ad045a47dbd2c6ac238c6ff1c1c5aa6c6 /arch
parentb463fc60730bea6cdd73fec6edc6ec4658d47d37 (diff)
[PATCH] Add irq flag to disable balancing for an interrupt
Add a flag so we can prevent the irq balancing of an interrupt. Move the bits, so we have room for more :) Necessary for the ability to setup clocksources more flexible (e.g. use the different HPET channels per CPU) Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: john stultz <johnstul@us.ibm.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/i386/kernel/io_apic.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c
index e30ccedad0b..c76be111092 100644
--- a/arch/i386/kernel/io_apic.c
+++ b/arch/i386/kernel/io_apic.c
@@ -482,8 +482,8 @@ static void do_irq_balance(void)
package_index = CPU_TO_PACKAGEINDEX(i);
for (j = 0; j < NR_IRQS; j++) {
unsigned long value_now, delta;
- /* Is this an active IRQ? */
- if (!irq_desc[j].action)
+ /* Is this an active IRQ or balancing disabled ? */
+ if (!irq_desc[j].action || irq_balancing_disabled(j))
continue;
if ( package_index == i )
IRQ_DELTA(package_index,j) = 0;