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x86, UV: Fix target_cpus() in x2apic_uv_x.c

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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: Jack Steiner <steiner@sgi.com>
LKML-Reference: <20100311184328.GA21433@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Jack Steiner 2010-03-11 12:43:29 -06:00 committed by Ingo Molnar
parent d6dd692168
commit 8447b360a3
1 changed files with 1 additions and 3 deletions
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arch/x86/kernel/apic/x2apic_uv_x.c
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@ -114,11 +114,9 @@ EXPORT_SYMBOL_GPL(uv_possible_blades);
unsigned long sn_rtc_cycles_per_second; unsigned long sn_rtc_cycles_per_second;
EXPORT_SYMBOL(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) 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) static void uv_vector_allocation_domain(int cpu, struct cpumask *retmask)