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Commit 2074b1d9 authored by Kim Phillips's avatar Kim Phillips Committed by Benjamin Herrenschmidt
Browse files

powerpc: Fix irq distribution 



setting CONFIG_IRQ_ALL_CPUS distributes IRQs to CPUs only when
the number of online CPUs equals NR_CPUS.  See commit
280ff974 "sparc64: fix and
optimize irq distribution" for more details.

Using the online mask fixes IRQ-to-CPU distribution on systems
that boot with less than NR_CPUS.

Signed-off-by: default avatarKim Phillips <kim.phillips@freescale.com>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 6749ef0b

arch/powerpc/kernel/irq.c

+1 −1
Original line number Diff line number Diff line
@@ -587,7 +587,7 @@ int irq_choose_cpu(const struct cpumask *mask) 
{

	int cpuid;



	if (cpumask_equal(mask, cpu_all_mask)) {

	if (cpumask_equal(mask, cpu_online_mask)) {

		static int irq_rover;

		static DEFINE_RAW_SPINLOCK(irq_rover_lock);

		unsigned long flags;