Re: [PATCH 0/5] RFC: ->make_request support for virtio-blk

From: Christoph Hellwig
Date: Wed Oct 05 2011 - 17:53:41 EST

On Wed, Oct 05, 2011 at 04:31:16PM -0400, Vivek Goyal wrote:
> So you no longer believe that request queue overhead can be brought
> down to mangeable levels for these fast devices. And instead go for
> bio based drivers and give up on merging and implement own FLUSH/FUA
> machinery.

Not in a reasonable time frame. Having a common interface is still the
grand plan, but the virtio performance issues are hurting people so
badly that we need a fix soon.

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