diff options
| author |   Thomas Gleixner <tglx@linutronix.de> | 2007-02-16 01:27:24 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-16 08:13:56 -0800 |
| commit | 950f4427c2ddc921164088a20f01304cf231437c (patch) | |
| tree | 8fd3fb1ad045a47dbd2c6ac238c6ff1c1c5aa6c6 /arch/i386/kernel | |
| parent | [PATCH] vmi-versus-hrtimers (diff) | |
| download | linux-dev-950f4427c2ddc921164088a20f01304cf231437c.tar.xz linux-dev-950f4427c2ddc921164088a20f01304cf231437c.zip | |
[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/i386/kernel')
| -rw-r--r-- | arch/i386/kernel/io_apic.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c index e30ccedad0b9..c76be1110922 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; |