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genirq/cpuhotplug: Add support for cleaning up move in progress

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In order to move x86 to the generic hotplug migration code, add support for
cleaning up move in progress bits.

On architectures which have this x86 specific (mis)feature not enabled,
this is optimized out by the compiler.

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/20170619235445.525817311@linutronix.de
This commit is contained in:
Thomas Gleixner 2017-06-20 01:37:29 +02:00
parent 91f26cb4cd
commit f0383c24b4
4 changed files with 37 additions and 4 deletions
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2
include/linux/irq.h
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@ -491,10 +491,12 @@ extern void irq_migrate_all_off_this_cpu(void);
#if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_PENDING_IRQ)
void irq_move_irq(struct irq_data *data);
void irq_move_masked_irq(struct irq_data *data);
void irq_force_complete_move(struct irq_desc *desc);
bool irq_fixup_move_pending(struct irq_desc *desc, bool force_clear);
#else
static inline void irq_move_irq(struct irq_data *data) { }
static inline void irq_move_masked_irq(struct irq_data *data) { }
static inline void irq_force_complete_move(struct irq_desc *desc) { }
static inline bool irq_fixup_move_pending(struct irq_desc *desc, bool fclear)
{
return false;