From: Miaohe Lin <linmiaohe@huawei.com>
To: Christoph Hellwig <hch@lst.de>
Cc: "Felix Kuehling" <Felix.Kuehling@amd.com>,
"Alex Deucher" <alexander.deucher@amd.com>,
"Christian König" <christian.koenig@amd.com>,
"Pan, Xinhui" <Xinhui.Pan@amd.com>,
"Ben Skeggs" <bskeggs@redhat.com>,
"Karol Herbst" <kherbst@redhat.com>,
"Lyude Paul" <lyude@redhat.com>, "Jason Gunthorpe" <jgg@ziepe.ca>,
"Alistair Popple" <apopple@nvidia.com>,
"Logan Gunthorpe" <logang@deltatee.com>,
"Ralph Campbell" <rcampbell@nvidia.com>,
linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org,
dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org,
nvdimm@lists.linux.dev, linux-mm@kvack.org,
"Andrew Morton" <akpm@linux-foundation.org>,
"Dan Williams" <dan.j.williams@intel.com>
Subject: Re: start sorting out the ZONE_DEVICE refcount mess
Date: Tue, 8 Feb 2022 11:03:32 +0800 [thread overview]
Message-ID: <8efd8321-8f0b-e5c3-8837-b0fe62f36c14@huawei.com> (raw)
In-Reply-To: <20220207063249.1833066-1-hch@lst.de>
On 2022/2/7 14:32, Christoph Hellwig wrote:
> Hi all,
>
> this series removes the offset by one refcount for ZONE_DEVICE pages
> that are freed back to the driver owning them, which is just device
> private ones for now, but also the planned device coherent pages
> and the ehanced p2p ones pending.
>
Many thanks for doing this, I remember the hard time when I read the relevant code. :)
> It does not address the fsdax pages yet, which will be attacked in a
> follow on series.
>
> Diffstat:
> arch/arm64/mm/mmu.c | 1
> arch/powerpc/kvm/book3s_hv_uvmem.c | 1
> drivers/gpu/drm/amd/amdkfd/kfd_migrate.c | 2
> drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 1
> drivers/gpu/drm/drm_cache.c | 2
> drivers/gpu/drm/nouveau/nouveau_dmem.c | 3 -
> drivers/gpu/drm/nouveau/nouveau_svm.c | 1
> drivers/infiniband/core/rw.c | 1
> drivers/nvdimm/pmem.h | 1
> drivers/nvme/host/pci.c | 1
> drivers/nvme/target/io-cmd-bdev.c | 1
> fs/Kconfig | 2
> fs/fuse/virtio_fs.c | 1
> include/linux/hmm.h | 9 ----
> include/linux/memremap.h | 22 +++++++++-
> include/linux/mm.h | 59 ++++-------------------------
> lib/test_hmm.c | 4 +
> mm/Kconfig | 4 -
> mm/internal.h | 2
> mm/memcontrol.c | 11 +----
> mm/memremap.c | 63 ++++++++++++++++---------------
> mm/migrate.c | 6 --
> mm/swap.c | 49 ++----------------------
> 23 files changed, 90 insertions(+), 157 deletions(-)
>
> .
>
WARNING: multiple messages have this Message-ID (diff)
From: Miaohe Lin <linmiaohe@huawei.com>
To: Christoph Hellwig <hch@lst.de>
Cc: nvdimm@lists.linux.dev, "Ralph Campbell" <rcampbell@nvidia.com>,
"Alistair Popple" <apopple@nvidia.com>,
dri-devel@lists.freedesktop.org,
"Karol Herbst" <kherbst@redhat.com>,
linux-mm@kvack.org, nouveau@lists.freedesktop.org,
"Felix Kuehling" <Felix.Kuehling@amd.com>,
"Pan, Xinhui" <Xinhui.Pan@amd.com>,
"Dan Williams" <dan.j.williams@intel.com>,
linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org,
"Jason Gunthorpe" <jgg@ziepe.ca>,
"Ben Skeggs" <bskeggs@redhat.com>,
"Alex Deucher" <alexander.deucher@amd.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Logan Gunthorpe" <logang@deltatee.com>,
"Christian König" <christian.koenig@amd.com>
Subject: Re: start sorting out the ZONE_DEVICE refcount mess
Date: Tue, 8 Feb 2022 11:03:32 +0800 [thread overview]
Message-ID: <8efd8321-8f0b-e5c3-8837-b0fe62f36c14@huawei.com> (raw)
In-Reply-To: <20220207063249.1833066-1-hch@lst.de>
On 2022/2/7 14:32, Christoph Hellwig wrote:
> Hi all,
>
> this series removes the offset by one refcount for ZONE_DEVICE pages
> that are freed back to the driver owning them, which is just device
> private ones for now, but also the planned device coherent pages
> and the ehanced p2p ones pending.
>
Many thanks for doing this, I remember the hard time when I read the relevant code. :)
> It does not address the fsdax pages yet, which will be attacked in a
> follow on series.
>
> Diffstat:
> arch/arm64/mm/mmu.c | 1
> arch/powerpc/kvm/book3s_hv_uvmem.c | 1
> drivers/gpu/drm/amd/amdkfd/kfd_migrate.c | 2
> drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 1
> drivers/gpu/drm/drm_cache.c | 2
> drivers/gpu/drm/nouveau/nouveau_dmem.c | 3 -
> drivers/gpu/drm/nouveau/nouveau_svm.c | 1
> drivers/infiniband/core/rw.c | 1
> drivers/nvdimm/pmem.h | 1
> drivers/nvme/host/pci.c | 1
> drivers/nvme/target/io-cmd-bdev.c | 1
> fs/Kconfig | 2
> fs/fuse/virtio_fs.c | 1
> include/linux/hmm.h | 9 ----
> include/linux/memremap.h | 22 +++++++++-
> include/linux/mm.h | 59 ++++-------------------------
> lib/test_hmm.c | 4 +
> mm/Kconfig | 4 -
> mm/internal.h | 2
> mm/memcontrol.c | 11 +----
> mm/memremap.c | 63 ++++++++++++++++---------------
> mm/migrate.c | 6 --
> mm/swap.c | 49 ++----------------------
> 23 files changed, 90 insertions(+), 157 deletions(-)
>
> .
>
WARNING: multiple messages have this Message-ID (diff)
From: Miaohe Lin <linmiaohe@huawei.com>
To: Christoph Hellwig <hch@lst.de>
Cc: nvdimm@lists.linux.dev, "Ralph Campbell" <rcampbell@nvidia.com>,
"Alistair Popple" <apopple@nvidia.com>,
dri-devel@lists.freedesktop.org, linux-mm@kvack.org,
nouveau@lists.freedesktop.org,
"Felix Kuehling" <Felix.Kuehling@amd.com>,
"Pan, Xinhui" <Xinhui.Pan@amd.com>,
"Dan Williams" <dan.j.williams@intel.com>,
linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org,
"Jason Gunthorpe" <jgg@ziepe.ca>,
"Ben Skeggs" <bskeggs@redhat.com>,
"Alex Deucher" <alexander.deucher@amd.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Logan Gunthorpe" <logang@deltatee.com>,
"Christian König" <christian.koenig@amd.com>
Subject: Re: [Nouveau] start sorting out the ZONE_DEVICE refcount mess
Date: Tue, 8 Feb 2022 11:03:32 +0800 [thread overview]
Message-ID: <8efd8321-8f0b-e5c3-8837-b0fe62f36c14@huawei.com> (raw)
In-Reply-To: <20220207063249.1833066-1-hch@lst.de>
On 2022/2/7 14:32, Christoph Hellwig wrote:
> Hi all,
>
> this series removes the offset by one refcount for ZONE_DEVICE pages
> that are freed back to the driver owning them, which is just device
> private ones for now, but also the planned device coherent pages
> and the ehanced p2p ones pending.
>
Many thanks for doing this, I remember the hard time when I read the relevant code. :)
> It does not address the fsdax pages yet, which will be attacked in a
> follow on series.
>
> Diffstat:
> arch/arm64/mm/mmu.c | 1
> arch/powerpc/kvm/book3s_hv_uvmem.c | 1
> drivers/gpu/drm/amd/amdkfd/kfd_migrate.c | 2
> drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 1
> drivers/gpu/drm/drm_cache.c | 2
> drivers/gpu/drm/nouveau/nouveau_dmem.c | 3 -
> drivers/gpu/drm/nouveau/nouveau_svm.c | 1
> drivers/infiniband/core/rw.c | 1
> drivers/nvdimm/pmem.h | 1
> drivers/nvme/host/pci.c | 1
> drivers/nvme/target/io-cmd-bdev.c | 1
> fs/Kconfig | 2
> fs/fuse/virtio_fs.c | 1
> include/linux/hmm.h | 9 ----
> include/linux/memremap.h | 22 +++++++++-
> include/linux/mm.h | 59 ++++-------------------------
> lib/test_hmm.c | 4 +
> mm/Kconfig | 4 -
> mm/internal.h | 2
> mm/memcontrol.c | 11 +----
> mm/memremap.c | 63 ++++++++++++++++---------------
> mm/migrate.c | 6 --
> mm/swap.c | 49 ++----------------------
> 23 files changed, 90 insertions(+), 157 deletions(-)
>
> .
>
next prev parent reply other threads:[~2022-02-08 3:22 UTC|newest]
Thread overview: 141+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-07 6:32 start sorting out the ZONE_DEVICE refcount mess Christoph Hellwig
2022-02-07 6:32 ` Christoph Hellwig
2022-02-07 6:32 ` [Nouveau] " Christoph Hellwig
2022-02-07 6:32 ` [PATCH 1/8] mm: remove a pointless CONFIG_ZONE_DEVICE check in memremap_pages Christoph Hellwig
2022-02-07 6:32 ` Christoph Hellwig
2022-02-07 6:32 ` [Nouveau] " Christoph Hellwig
2022-02-07 18:08 ` Dan Williams
2022-02-07 18:08 ` Dan Williams
2022-02-07 18:08 ` [Nouveau] " Dan Williams
2022-02-07 19:22 ` Jason Gunthorpe
2022-02-07 19:22 ` Jason Gunthorpe
2022-02-07 19:22 ` [Nouveau] " Jason Gunthorpe
2022-02-08 7:17 ` Chaitanya Kulkarni
2022-02-08 7:17 ` [Nouveau] " Chaitanya Kulkarni
2022-02-08 7:17 ` Chaitanya Kulkarni
2022-02-08 8:06 ` Muchun Song
2022-02-08 8:06 ` [Nouveau] " Muchun Song
2022-02-08 8:06 ` Muchun Song
2022-02-07 6:32 ` [PATCH 2/8] mm: remove the __KERNEL__ guard from <linux/mm.h> Christoph Hellwig
2022-02-07 6:32 ` Christoph Hellwig
2022-02-07 6:32 ` [Nouveau] " Christoph Hellwig
2022-02-07 18:08 ` Dan Williams
2022-02-07 18:08 ` Dan Williams
2022-02-07 18:08 ` [Nouveau] " Dan Williams
2022-02-07 19:26 ` Jason Gunthorpe
2022-02-07 19:26 ` [Nouveau] " Jason Gunthorpe
2022-02-07 19:26 ` Jason Gunthorpe
2022-02-08 7:21 ` Chaitanya Kulkarni
2022-02-08 7:21 ` [Nouveau] " Chaitanya Kulkarni
2022-02-08 7:21 ` Chaitanya Kulkarni
2022-02-08 8:07 ` Muchun Song
2022-02-08 8:07 ` [Nouveau] " Muchun Song
2022-02-08 8:07 ` Muchun Song
2022-02-07 6:32 ` [PATCH 3/8] mm: remove pointless includes from <linux/hmm.h> Christoph Hellwig
2022-02-07 6:32 ` Christoph Hellwig
2022-02-07 6:32 ` [Nouveau] " Christoph Hellwig
2022-02-07 14:01 ` Jason Gunthorpe
2022-02-07 14:01 ` Jason Gunthorpe
2022-02-07 14:01 ` [Nouveau] " Jason Gunthorpe
2022-02-08 7:27 ` Chaitanya Kulkarni
2022-02-08 7:27 ` [Nouveau] " Chaitanya Kulkarni
2022-02-08 7:27 ` Chaitanya Kulkarni
2022-02-07 6:32 ` [PATCH 4/8] mm: move free_devmap_managed_page to memremap.c Christoph Hellwig
2022-02-07 6:32 ` Christoph Hellwig
2022-02-07 6:32 ` [Nouveau] " Christoph Hellwig
2022-02-07 19:06 ` Dan Williams
2022-02-07 19:06 ` Dan Williams
2022-02-07 19:06 ` [Nouveau] " Dan Williams
2022-02-07 19:27 ` Jason Gunthorpe
2022-02-07 19:27 ` Jason Gunthorpe
2022-02-07 19:27 ` [Nouveau] " Jason Gunthorpe
2022-02-08 7:34 ` Chaitanya Kulkarni
2022-02-08 7:34 ` [Nouveau] " Chaitanya Kulkarni
2022-02-08 7:34 ` Chaitanya Kulkarni
2022-02-08 8:09 ` Muchun Song
2022-02-08 8:09 ` [Nouveau] " Muchun Song
2022-02-08 8:09 ` Muchun Song
2022-02-07 6:32 ` [PATCH 5/8] mm: simplify freeing of devmap managed pages Christoph Hellwig
2022-02-07 6:32 ` Christoph Hellwig
2022-02-07 6:32 ` [Nouveau] " Christoph Hellwig
2022-02-07 19:34 ` Jason Gunthorpe
2022-02-07 19:34 ` Jason Gunthorpe
2022-02-07 19:34 ` [Nouveau] " Jason Gunthorpe
2022-02-07 23:42 ` Dan Williams
2022-02-07 23:42 ` Dan Williams
2022-02-07 23:42 ` [Nouveau] " Dan Williams
2022-02-08 7:50 ` Chaitanya Kulkarni
2022-02-08 7:50 ` [Nouveau] " Chaitanya Kulkarni
2022-02-08 7:50 ` Chaitanya Kulkarni
2022-02-07 6:32 ` [PATCH 6/8] mm: don't include <linux/memremap.h> in <linux/mm.h> Christoph Hellwig
2022-02-07 6:32 ` Christoph Hellwig
2022-02-07 6:32 ` [Nouveau] " Christoph Hellwig
2022-02-07 17:38 ` Logan Gunthorpe
2022-02-07 17:38 ` Logan Gunthorpe
2022-02-07 17:38 ` [Nouveau] " Logan Gunthorpe
2022-02-07 19:35 ` Jason Gunthorpe
2022-02-07 19:35 ` Jason Gunthorpe
2022-02-07 19:35 ` [Nouveau] " Jason Gunthorpe
2022-02-07 21:19 ` Felix Kuehling
2022-02-07 21:19 ` Felix Kuehling
2022-02-07 21:19 ` [Nouveau] " Felix Kuehling
2022-02-08 6:46 ` Christoph Hellwig
2022-02-08 6:46 ` Christoph Hellwig
2022-02-08 6:46 ` [Nouveau] " Christoph Hellwig
2022-02-09 17:48 ` Christoph Hellwig
2022-02-09 17:48 ` Christoph Hellwig
2022-02-09 17:48 ` [Nouveau] " Christoph Hellwig
2022-02-10 2:10 ` Alistair Popple
2022-02-10 2:10 ` Alistair Popple
2022-02-10 2:10 ` [Nouveau] " Alistair Popple
2022-02-10 6:45 ` Christoph Hellwig
2022-02-10 6:45 ` Christoph Hellwig
2022-02-10 6:45 ` [Nouveau] " Christoph Hellwig
2022-02-10 21:00 ` Felix Kuehling
2022-02-10 21:00 ` Felix Kuehling
2022-02-10 21:00 ` [Nouveau] " Felix Kuehling
2022-02-07 23:49 ` Dan Williams
2022-02-07 23:49 ` Dan Williams
2022-02-07 23:49 ` [Nouveau] " Dan Williams
2022-02-08 23:53 ` Dan Williams
2022-02-08 23:53 ` Dan Williams
2022-02-08 23:53 ` [Nouveau] " Dan Williams
2022-02-09 6:22 ` Christoph Hellwig
2022-02-09 6:22 ` Christoph Hellwig
2022-02-09 6:22 ` [Nouveau] " Christoph Hellwig
2022-02-07 6:32 ` [PATCH 7/8] mm: remove the extra ZONE_DEVICE struct page refcount Christoph Hellwig
2022-02-07 6:32 ` Christoph Hellwig
2022-02-07 6:32 ` [Nouveau] " Christoph Hellwig
2022-02-07 19:21 ` Jason Gunthorpe
2022-02-07 19:21 ` Jason Gunthorpe
2022-02-07 19:21 ` [Nouveau] " Jason Gunthorpe
2022-02-08 2:25 ` Ralph Campbell
2022-02-08 2:25 ` Ralph Campbell
2022-02-08 2:25 ` [Nouveau] " Ralph Campbell
2022-02-09 3:30 ` Dan Williams
2022-02-09 3:30 ` Dan Williams
2022-02-09 3:30 ` [Nouveau] " Dan Williams
2022-02-09 6:23 ` Christoph Hellwig
2022-02-09 6:23 ` Christoph Hellwig
2022-02-09 6:23 ` [Nouveau] " Christoph Hellwig
2022-02-09 12:29 ` Jason Gunthorpe
2022-02-09 12:29 ` [Nouveau] " Jason Gunthorpe
2022-02-09 12:29 ` Jason Gunthorpe
2022-02-09 13:53 ` Christoph Hellwig
2022-02-09 13:53 ` Christoph Hellwig
2022-02-09 13:53 ` [Nouveau] " Christoph Hellwig
2022-02-09 14:14 ` Jason Gunthorpe
2022-02-09 14:14 ` Jason Gunthorpe
2022-02-09 14:14 ` [Nouveau] " Jason Gunthorpe
2022-02-07 6:32 ` [PATCH 8/8] fsdax: depend on ZONE_DEVICE || FS_DAX_LIMITED Christoph Hellwig
2022-02-07 6:32 ` Christoph Hellwig
2022-02-07 6:32 ` [Nouveau] " Christoph Hellwig
2022-02-07 19:36 ` Jason Gunthorpe
2022-02-07 19:36 ` Jason Gunthorpe
2022-02-07 19:36 ` [Nouveau] " Jason Gunthorpe
2022-02-07 23:51 ` start sorting out the ZONE_DEVICE refcount mess Logan Gunthorpe
2022-02-07 23:51 ` Logan Gunthorpe
2022-02-07 23:51 ` [Nouveau] " Logan Gunthorpe
2022-02-08 3:03 ` Miaohe Lin [this message]
2022-02-08 3:03 ` Miaohe Lin
2022-02-08 3:03 ` Miaohe Lin
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