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Commit 8447b360 authored by Jack Steiner's avatar Jack Steiner Committed by Ingo Molnar
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x86, UV: Fix target_cpus() in x2apic_uv_x.c 



target_cpu() should initially target all cpus, not just cpu 0.
Otherwise systems with lots of disks can exhaust the interrupt
vectors on cpu 0 if a large number of disks are discovered
before the irq balancer is running.

Note: UV code only...

Signed-off-by: default avatarJack Steiner <steiner@sgi.com>
LKML-Reference: <20100311184328.GA21433@sgi.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent d6dd6921

arch/x86/kernel/apic/x2apic_uv_x.c

+1 −3
Original line number Diff line number Diff line
@@ -114,11 +114,9 @@ EXPORT_SYMBOL_GPL(uv_possible_blades); 
unsigned long sn_rtc_cycles_per_second;

EXPORT_SYMBOL(sn_rtc_cycles_per_second);



/* Start with all IRQs pointing to boot CPU.  IRQ balancing will shift them. */



static const struct cpumask *uv_target_cpus(void)

{

	return cpumask_of(0);

	return cpu_online_mask;

}



static void uv_vector_allocation_domain(int cpu, struct cpumask *retmask)