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From: Christoph Hellwig <hch@lst.de>
To: "Dan Williams" <dan.j.williams@intel.com>,
	"Jérôme Glisse" <jglisse@redhat.com>,
	"Jason Gunthorpe" <jgg@mellanox.com>,
	"Ben Skeggs" <bskeggs@redhat.com>
Cc: linux-mm@kvack.org, nouveau@lists.freedesktop.org,
	dri-devel@lists.freedesktop.org, linux-nvdimm@lists.01.org,
	linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: dev_pagemap related cleanups v3
Date: Wed, 26 Jun 2019 14:26:59 +0200	[thread overview]
Message-ID: <20190626122724.13313-1-hch@lst.de> (raw)

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

Note: this series is on top of Linux 5.2-rc5 and has some minor
conflicts with the hmm tree that are easy to resolve.

Diffstat summary:

 32 files changed, 361 insertions(+), 1012 deletions(-)

Git tree:

    git://git.infradead.org/users/hch/misc.git hmm-devmem-cleanup.3

Gitweb:

    http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/hmm-devmem-cleanup.3


Changes since v2:
 - fix nvdimm kunit build
 - add a new memory type for device dax
 - fix a few issues in intermediate patches that didn't show up in the end
   result
 - incorporate feedback from Michal Hocko, including killing of
   the DEVICE_PUBLIC memory type entirely

Changes since v1:
 - rebase
 - also switch p2pdma to the internal refcount
 - add type checking for pgmap->type
 - rename the migrate method to migrate_to_ram
 - cleanup the altmap_valid flag
 - various tidbits from the reviews

WARNING: multiple messages have this Message-ID
From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
To: "Dan Williams"
	<dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	"Jérôme Glisse" <jglisse-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	"Jason Gunthorpe" <jgg-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
	"Ben Skeggs" <bskeggs-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org,
	linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
	linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org,
	nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: dev_pagemap related cleanups v3
Date: Wed, 26 Jun 2019 14:26:59 +0200	[thread overview]
Message-ID: <20190626122724.13313-1-hch@lst.de> (raw)

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

Note: this series is on top of Linux 5.2-rc5 and has some minor
conflicts with the hmm tree that are easy to resolve.

Diffstat summary:

 32 files changed, 361 insertions(+), 1012 deletions(-)

Git tree:

    git://git.infradead.org/users/hch/misc.git hmm-devmem-cleanup.3

Gitweb:

    http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/hmm-devmem-cleanup.3


Changes since v2:
 - fix nvdimm kunit build
 - add a new memory type for device dax
 - fix a few issues in intermediate patches that didn't show up in the end
   result
 - incorporate feedback from Michal Hocko, including killing of
   the DEVICE_PUBLIC memory type entirely

Changes since v1:
 - rebase
 - also switch p2pdma to the internal refcount
 - add type checking for pgmap->type
 - rename the migrate method to migrate_to_ram
 - cleanup the altmap_valid flag
 - various tidbits from the reviews
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             reply	other threads:[~2019-06-26 12:26 UTC|newest]

Thread overview: 139+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-26 12:26 Christoph Hellwig [this message]
2019-06-26 12:26 ` dev_pagemap related cleanups v3 Christoph Hellwig
2019-06-26 12:27 ` [PATCH 01/25] mm: remove the unused ARCH_HAS_HMM_DEVICE Kconfig option Christoph Hellwig
2019-06-26 12:27 ` [PATCH 02/25] mm: remove the struct hmm_device infrastructure Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27 ` [PATCH 03/25] mm: remove hmm_devmem_add_resource Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-27 16:18   ` Jason Gunthorpe
2019-06-27 16:54     ` Christoph Hellwig
2019-06-27 16:54       ` Christoph Hellwig
2019-06-26 12:27 ` [PATCH 04/25] mm: remove MEMORY_DEVICE_PUBLIC support Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 16:00   ` Dan Williams
2019-06-26 16:00     ` Dan Williams
2019-06-26 17:14     ` Ira Weiny
2019-06-26 17:14       ` Ira Weiny
2019-06-26 17:14       ` Ira Weiny
2019-06-26 18:49       ` Ira Weiny
2019-06-26 18:49         ` Ira Weiny
2019-06-26 18:49         ` Ira Weiny
2019-06-26 12:27 ` [PATCH 05/25] mm: don't clear ->mapping in hmm_devmem_free Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27 ` [PATCH 06/25] mm: export alloc_pages_vma Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:36   ` Michal Hocko
2019-06-26 12:36     ` Michal Hocko
2019-06-26 12:27 ` [PATCH 07/25] mm: factor out a devm_request_free_mem_region helper Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27 ` [PATCH 08/25] memremap: validate the pagemap type passed to devm_memremap_pages Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 18:01   ` Ira Weiny
2019-06-26 18:01     ` Ira Weiny
2019-06-26 12:27 ` [PATCH 09/25] memremap: move dev_pagemap callbacks into a separate structure Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27 ` [PATCH 10/25] memremap: pass a struct dev_pagemap to ->kill and ->cleanup Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27 ` [PATCH 11/25] memremap: lift the devmap_enable manipulation into devm_memremap_pages Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 19:04   ` Ira Weiny
2019-06-26 19:04     ` Ira Weiny
2019-06-26 19:04     ` Ira Weiny
2019-06-27  8:50     ` Christoph Hellwig
2019-06-27  8:50       ` Christoph Hellwig
2019-06-26 12:27 ` [PATCH 12/25] memremap: add a migrate_to_ram method to struct dev_pagemap_ops Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-27 16:29   ` Jason Gunthorpe
2019-06-27 16:29     ` Jason Gunthorpe
2019-06-27 16:53     ` Christoph Hellwig
2019-06-27 16:53       ` Christoph Hellwig
2019-06-26 12:27 ` [PATCH 13/25] memremap: remove the data field in struct dev_pagemap Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27 ` [PATCH 14/25] memremap: replace the altmap_valid field with a PGMAP_ALTMAP_VALID flag Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 21:13   ` Ira Weiny
2019-06-26 21:13     ` Ira Weiny
2019-06-26 12:27 ` [PATCH 15/25] memremap: provide an optional internal refcount in struct dev_pagemap Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 21:47   ` Ira Weiny
2019-06-26 21:47     ` Ira Weiny
2019-06-27  8:51     ` Christoph Hellwig
2019-06-27  8:51       ` Christoph Hellwig
2019-06-26 12:27 ` [PATCH 16/25] device-dax: use the dev_pagemap internal refcount Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 21:48   ` Ira Weiny
2019-06-26 21:48     ` Ira Weiny
2019-06-26 21:48     ` Ira Weiny
2019-06-28 15:38   ` Jason Gunthorpe
2019-06-28 16:27     ` Dan Williams
2019-06-28 16:27       ` Dan Williams
2019-06-28 17:02       ` Jason Gunthorpe
2019-06-28 17:02         ` Jason Gunthorpe
2019-06-28 17:08         ` Dan Williams
2019-06-28 17:10           ` Dan Williams
2019-06-28 17:10             ` Dan Williams
2019-06-28 18:29             ` Jason Gunthorpe
2019-06-28 18:29               ` Jason Gunthorpe
2019-06-28 18:44               ` Dan Williams
2019-06-28 18:51                 ` Christoph Hellwig
2019-06-28 18:51                   ` Christoph Hellwig
2019-06-28 18:59                   ` Dan Williams
2019-06-28 18:59                     ` Dan Williams
2019-06-28 19:02                     ` Christoph Hellwig
2019-06-28 19:02                       ` Christoph Hellwig
2019-06-28 19:14                       ` Dan Williams
2019-06-28 19:14                         ` Dan Williams
2019-06-28 19:14                         ` Dan Williams
2019-07-02 22:35                         ` Andrew Morton
2019-07-02 22:35                           ` Andrew Morton
2019-07-02 22:35                           ` Andrew Morton
2019-06-26 12:27 ` [PATCH 17/25] PCI/P2PDMA: " Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 21:49   ` Ira Weiny
2019-06-26 21:49     ` Ira Weiny
2019-06-26 21:49     ` Ira Weiny
2019-06-27 18:49   ` Logan Gunthorpe
2019-06-26 12:27 ` [PATCH 18/25] nouveau: use alloc_page_vma directly Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27 ` [PATCH 19/25] nouveau: use devm_memremap_pages directly Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27 ` [PATCH 20/25] mm: remove hmm_vma_alloc_locked_page Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-27 16:26   ` Jason Gunthorpe
2019-06-26 12:27 ` [PATCH 21/25] mm: remove hmm_devmem_add Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27 ` [PATCH 22/25] mm: simplify ZONE_DEVICE page private data Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27 ` [PATCH 23/25] mm: sort out the DEVICE_PRIVATE Kconfig mess Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 21:36   ` Ira Weiny
2019-06-26 21:36     ` Ira Weiny
2019-06-26 12:27 ` [PATCH 24/25] mm: remove the HMM config option Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 21:38   ` Ira Weiny
2019-06-26 21:38     ` Ira Weiny
2019-06-26 21:38     ` Ira Weiny
2019-06-27 16:29   ` Jason Gunthorpe
2019-06-26 12:27 ` [PATCH 25/25] mm: don't select MIGRATE_VMA_HELPER from HMM_MIRROR Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig
2019-06-26 12:27   ` Christoph Hellwig

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