Re: dev_pagemap related cleanups

Logan Gunthorpe
2019-06-13T20:17:49Z

On 2019-06-13 12:27 p.m., Dan Williams wrote:
> On Thu, Jun 13, 2019 at 2:43 AM Christoph Hellwig <hch@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 ;(

Logan