[PATCH v3] virtio_blk: add VIRTIO_BLK_F_LIFETIME feature support

[Alvaro Karsz]

Hi,

> Is this based on some spec? Because it looks pretty odd to me. There
> can be a pretty wide range of two/three/etc level cells with wildly
> different ranges of durability. And there's really not a lot of slc
> for generic devices these days, if any.

Yes, this is based on the virtio spec
https://docs.oasis-open.org/virtio/virtio/v1.2/csd01/virtio-v1.2-csd01.html
section  5.2.6