Re: [PATCH] virtio_blk: Add support for lifetime feature

From: Stefan Hajnoczi
Date: Wed Apr 14 2021 - 04:44:50 EST


On Mon, Apr 12, 2021 at 10:42:17AM +0100, Christoph Hellwig wrote:
> A note to the virtio committee: eMMC is the worst of all the currently
> active storage standards by a large margin. It defines very strange
> ad-hoc interfaces that expose very specific internals and often provides
> very poor abstractions. It would be great it you could reach out to the
> wider storage community before taking bad ideas from the eMMC standard
> and putting it into virtio.

As Michael mentioned, there is still time to change the virtio-blk spec
since this feature hasn't been released yet.

Why exactly is exposing eMMC-style lifetime information problematic?

Can you and Enrico discuss the use case to figure out an alternative
interface?

Thanks,
Stefan

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