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genirq/cpuhotplug: Remove irq disabling logic

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This is called from stop_machine() with interrupts disabled. No point in
disabling them some more.

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/20170619235445.198042748@linutronix.de
This commit is contained in:
Thomas Gleixner 2017-06-20 01:37:25 +02:00
parent 137221df69
commit 0dd945ff46
1 changed files with 4 additions and 8 deletions
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12
kernel/irq/cpuhotplug.c
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@ -59,11 +59,8 @@ static bool migrate_one_irq(struct irq_desc *desc)
*/
void irq_migrate_all_off_this_cpu(void)
{
unsigned int irq;
struct irq_desc *desc;
unsigned long flags;
local_irq_save(flags);
unsigned int irq;
for_each_active_irq(irq) {
bool affinity_broken;
@ -73,10 +70,9 @@ void irq_migrate_all_off_this_cpu(void)
affinity_broken = migrate_one_irq(desc);
raw_spin_unlock(&desc->lock);
if (affinity_broken)
pr_warn_ratelimited("IRQ%u no longer affine to CPU%u\n",
if (affinity_broken) {
pr_warn_ratelimited("IRQ %u: no longer affine to CPU%u\n",
irq, smp_processor_id());
}
}
local_irq_restore(flags);
}