Re: [PATCH] nvme: honor the volatile write cache enable state

[Keith Busch]

On Wed, Oct 28, 2026 at 06:08:17PM +0100, Erwan Velu wrote:
> Le mer. 28 oct. 2026 à 17:08, Keith Busch <kbusch@xxxxxxxxxx> a écrit :
> [...]
> > > Considering the performance impact for these type of device,s would you be
> > > open to a backport to stable once merged ?
> >
> > Not sure when a performance improvement is stable worthy. I'm more
> > concerned that doing this is going to expose corruption, but it's what
> > the device is asking for, so fine to introduce it, but stable is
> > questionable.
> If we consider this dangerous for this device, should we add a quirk
> for some devices that could be seen as lying?

Let's just assume spec complaince for now until proven otherwise.
When/if a device is discovered to be quirky on this feature, we can
introduce handling to ignore WCE.