[PATCH v1 00/12] MEMORY_DEVICE_COHERENT for CPU-accessible coherent device memory

[Felix Kuehling]

Am 2021-10-12 um 3:11 p.m. schrieb Matthew Wilcox:
> On Tue, Oct 12, 2021 at 11:39:57AM -0700, Andrew Morton wrote:
>> Because I must ask: if this feature is for one single computer which
>> presumably has a custom kernel, why add it to mainline Linux?
> I think in particular patch 2 deserves to be merged because it removes
> a ton of cruft from every call to put_page() (at least if you're using
> a distro config).  It makes me nervous, but I think it's the right
> thing to do.  It may well need more fixups after it has been merged,
> but that's life.

Maybe we should split the first two patches into a separate series, and
get it merged first, while the more controversial stuff is still under
review?

Thanks,
  Felix