[Nouveau] dev_pagemap related cleanups

[Dan Williams]

On Thu, Jun 13, 2019 at 1:18 PM Logan Gunthorpe <logang at deltatee.com> wrote:
>
>
>
> On 2019-06-13 12:27 p.m., Dan Williams wrote:
> > On Thu, Jun 13, 2019 at 2:43 AM Christoph Hellwig <hch at lst.de> wrote:
> >>
> >> Hi Dan, Jérôme and Jason,
> >>
> >> below is a series that cleans up the dev_pagemap interface so that
> >> it is more easily usable, which removes the need to wrap it in hmm
> >> and thus allowing to kill a lot of code
> >>
> >> Diffstat:
> >>
> >>  22 files changed, 245 insertions(+), 802 deletions(-)
> >
> > Hooray!
> >
> >> Git tree:
> >>
> >>     git://git.infradead.org/users/hch/misc.git hmm-devmem-cleanup
> >
> > I just realized this collides with the dev_pagemap release rework in
> > Andrew's tree (commit ids below are from next.git and are not stable)
> >
> > 4422ee8476f0 mm/devm_memremap_pages: fix final page put race
> > 771f0714d0dc PCI/P2PDMA: track pgmap references per resource, not globally
> > af37085de906 lib/genalloc: introduce chunk owners
> > e0047ff8aa77 PCI/P2PDMA: fix the gen_pool_add_virt() failure path
> > 0315d47d6ae9 mm/devm_memremap_pages: introduce devm_memunmap_pages
> > 216475c7eaa8 drivers/base/devres: introduce devm_release_action()
> >
> > CONFLICT (content): Merge conflict in tools/testing/nvdimm/test/iomap.c
> > CONFLICT (content): Merge conflict in mm/hmm.c
> > CONFLICT (content): Merge conflict in kernel/memremap.c
> > CONFLICT (content): Merge conflict in include/linux/memremap.h
> > CONFLICT (content): Merge conflict in drivers/pci/p2pdma.c
> > CONFLICT (content): Merge conflict in drivers/nvdimm/pmem.c
> > CONFLICT (content): Merge conflict in drivers/dax/device.c
> > CONFLICT (content): Merge conflict in drivers/dax/dax-private.h
> >
> > Perhaps we should pull those out and resend them through hmm.git?
>
> Hmm, I've been waiting for those patches to get in for a little while now ;(

Unless Andrew was going to submit as v5.2-rc fixes I think I should
rebase / submit them on current hmm.git and then throw these cleanups
from Christoph on top?