From: Ming Lei <ming.lei@canonical.com>
Date: Thu, 26 Jun 2014 09:41:48 +0000 (+0800)
Subject: block: virtio-blk: support multi virt queues per virtio-blk device
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~74^2~62
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6a27b656fc0210e976db362e1368c56db05c8f08;p=pandora-kernel.git

block: virtio-blk: support multi virt queues per virtio-blk device

Firstly this patch supports more than one virtual queues for virtio-blk
device.

Secondly this patch maps the virtual queue to blk-mq's hardware queue.

With this approach, both scalability and performance can be improved.

Signed-off-by: Ming Lei <ming.lei@canonical.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---

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