path: root/kernel/irq/internals.h
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authorChristoph Hellwig <hch@lst.de>2016-07-04 17:39:27 +0900
committerThomas Gleixner <tglx@linutronix.de>2016-07-04 12:25:14 +0200
commit5e385a6ef31fbbf2acbda770aecc2bc2ff933d17 (patch)
tree2845d6e1d4633d50683a07d0c2bebafc990c7b2a /kernel/irq/internals.h
parent0972fa57f53525ffa6ced12d703750fc2791e3ce (diff)
genirq: Add a helper to spread an affinity mask for MSI/MSI-X vectors
This is lifted from the blk-mq code and adopted to use the affinity mask concept just introduced in the irq handling code. It tries to keep the algorithm the same as the one current used by blk-mq, but improvements like assining vectors on a per-node basis instead of just per sibling are possible with this simple move and refactoring. Signed-off-by: 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/1467621574-8277-7-git-send-email-hch@lst.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/irq/internals.h')
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