Re: [PATCH v4 0/1] Use HMM for ODP v4

Jason Gunthorpe
2019-05-22T23:57:41Z

On Wed, May 22, 2019 at 01:48:52PM -0400, Jerome Glisse wrote:

> > > So attached is a rebase on top of 5.2-rc1, i have tested with pingpong
> > > (prefetch and not and different sizes). Seems to work ok.
> >
> > Urk, it already doesn't apply to the rdma tree :(
> >
> > The conflicts are a little more extensive than I'd prefer to handle..
> > Can I ask you to rebase it on top of this branch please:
> >
> > https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git/log/?h=wip/jgg-for-next
> >
> > Specifically it conflicts with this patch:
> >
> > https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git/commit/?h=wip/jgg-for-next&id=d2183c6f1958e6b6dfdde279f4cee04280710e34

There is at least one more serious blocker here:

config ARCH_HAS_HMM_MIRROR
bool
default y
depends on (X86_64 || PPC64)
depends on MMU && 64BIT

I can't loose ARM64 support for ODP by merging this, that is too
serious of a regression.

Can you fix it?

Thanks,
Jason