[PATCH v3] nvme: enable FDP support

Christoph Hellwig hch at lst.de
Tue Jul 2 08:36:31 PDT 2024


On Tue, Jul 02, 2024 at 09:15:06AM -0600, Keith Busch wrote:
> My first concern for applying something like this is what kind of
> maintenance burdens does this create, or any potential harm to users who
> don't subscribe to the feature? Nothing here looks alarming to me, and
> there is a clear demand to be able to access these features like this.
> Maybe it works out for some workloads, maybe it doesn't, but I don't see
> a need to block this at this point.

We're just abusing the interface, and giving how badly designed and
intentionally Linux-hostile it was I see no point.

If Samsung and Meta care enough about good Linux I/O temperature hint
support we'll get what we want in the technical working group, please
help working on that!



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