linux-kernel - Re: add a not device managed memremap

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Date:   Fri, 16 Aug 2019 12:40:30 +0000
From:   Jason Gunthorpe <jgg@...lanox.com>
To:     Christoph Hellwig <hch@....de>
CC:     Dan Williams <dan.j.williams@...el.com>,
        Bharata B Rao <bharata@...ux.ibm.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-nvdimm@...ts.01.org" <linux-nvdimm@...ts.01.org>
Subject: Re: add a not device managed memremap_pages v2

On Fri, Aug 16, 2019 at 02:36:07PM +0200, Christoph Hellwig wrote:
> > > Changes since v1:
> > >  - don't overload devm_request_free_mem_region
> > >  - export the memremap_pages and munmap_pages as kvmppc can be a module
> > 
> > What tree do we want this to go through? Dan are you running a pgmap
> > tree still? Do we know of any conflicts?
> 
> The last changes in this area went through the hmm tree.  There are
> now known conflicts, and the kvmppc drivers that needs this already
> has a dependency on the hmm tree for the migrate_vma_* changes.

OK by me, Dan can you ack or review? Thanks

Jason