linux-kernel - [PATCH 0/2] blk-mq: support physical CPU hotplug

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Date:   Fri, 12 Jan 2018 10:53:04 +0800
From:   Ming Lei <ming.lei@...hat.com>
To:     Jens Axboe <axboe@...com>, linux-block@...r.kernel.org,
        Christoph Hellwig <hch@...radead.org>
Cc:     Christian Borntraeger <borntraeger@...ibm.com>,
        Stefan Haberland <sth@...ux.vnet.ibm.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org, Ming Lei <ming.lei@...hat.com>
Subject: [PATCH 0/2] blk-mq: support physical CPU hotplug

Hi,

This two patches support physical CPU hotplug, so that we can make blk-mq
scale well when new physical CPU is added or removed, and this use case
is normal for VM world.

Also this patchset fixes the following warning reported by Christian
Borntraeger:

	https://marc.info/?l=linux-block&m=151092973417143&w=2

Christoph Hellwig (2):
  genirq/affinity: assign vectors to all possible CPUs
  blk-mq: simplify queue mapping & schedule with each possisble CPU

 block/blk-mq.c        | 19 ++++++++-----------
 kernel/irq/affinity.c | 30 +++++++++++++++---------------
 2 files changed, 23 insertions(+), 26 deletions(-)

-- 
2.9.5