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xen/events: Add support for effective affinity mask

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Update the effective affinity mask when an interrupt was successfully
targeted to a CPU.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Christoph Hellwig <hch@lst.de>
Link: http://lkml.kernel.org/r/20170619235446.799944725@linutronix.de
This commit is contained in:
Thomas Gleixner 2017-06-20 01:37:45 +02:00
parent 0e24f7c9f6
commit ef1c2cc885
1 changed files with 5 additions and 1 deletions
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6
drivers/xen/events/events_base.c
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@ -1343,8 +1343,12 @@ static int set_affinity_irq(struct irq_data *data, const struct cpumask *dest,
bool force) bool force)
{ {
unsigned tcpu = cpumask_first_and(dest, cpu_online_mask); unsigned tcpu = cpumask_first_and(dest, cpu_online_mask);
int ret = rebind_irq_to_cpu(data->irq, tcpu);
return rebind_irq_to_cpu(data->irq, tcpu); if (!ret)
irq_data_update_effective_affinity(data, cpumask_of(tcpu));
return ret;
} }
static void enable_dynirq(struct irq_data *data) static void enable_dynirq(struct irq_data *data)