genirq: Introduce IRQD_AFFINITY_MANAGED flag

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Interupts marked with this flag are excluded from user space interrupt
affinity changes. Contrary to the IRQ_NO_BALANCING flag, the kernel internal
affinity mechanism is not blocked.

This flag will be used for multi-queue device interrupts.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: linux-block@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: linux-nvme@lists.infradead.org
Cc: axboe@fb.com
Cc: agordeev@redhat.com
Link: http://lkml.kernel.org/r/1467621574-8277-3-git-send-email-hch@lst.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

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This commit is contained in:

Thomas Gleixner 2016-07-04 17:39:23 +09:00

parent b6140914fd

commit 9c2555835b

4 changed files with 28 additions and 4 deletions

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7

include/linux/irq.h

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2

kernel/irq/internals.h

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21

kernel/irq/manage.c

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2

kernel/irq/proc.c

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