On Mon, 2012-06-04 at 23:40 +0800, Asias He wrote:
> All blk requests are processed in notify_vq() which is in the context of
> ioeventfd thread: ioeventfd__thread(). The processing in notify_vq() may
> take a long time to complete and all devices share the single ioeventfd
> thead, so this might block other device's notify_vq() being called and
> starve other devices.

We're using native vectored AIO for for processing blk requests, so I'm
not certain if theres any point in giving the blk device it's own thread
for handling that.

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