From: Matthew Wilcox <willy@infradead.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Alex Sierra <alex.sierra@amd.com>,
Felix.Kuehling@amd.com, linux-mm@kvack.org, rcampbell@nvidia.com,
linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org,
amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
hch@lst.de, jgg@nvidia.com, jglisse@redhat.com,
apopple@nvidia.com
Subject: Re: [PATCH v1 00/12] MEMORY_DEVICE_COHERENT for CPU-accessible coherent device memory
Date: Tue, 12 Oct 2021 20:11:14 +0100 [thread overview]
Message-ID: <YWXd0leFtLepunVa@casper.infradead.org> (raw)
In-Reply-To: <20211012113957.53f05928dd60f3686331fede@linux-foundation.org>
On Tue, Oct 12, 2021 at 11:39:57AM -0700, Andrew Morton wrote:
> Because I must ask: if this feature is for one single computer which
> presumably has a custom kernel, why add it to mainline Linux?
I think in particular patch 2 deserves to be merged because it removes
a ton of cruft from every call to put_page() (at least if you're using
a distro config). It makes me nervous, but I think it's the right
thing to do. It may well need more fixups after it has been merged,
but that's life.
next prev parent reply other threads:[~2021-10-12 19:12 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-12 17:12 [PATCH v1 00/12] MEMORY_DEVICE_COHERENT for CPU-accessible coherent device memory Alex Sierra
2021-10-12 17:12 ` [PATCH v1 01/12] ext4/xfs: add page refcount helper Alex Sierra
2021-10-12 17:12 ` [PATCH v1 02/12] mm: remove extra ZONE_DEVICE struct page refcount Alex Sierra
2021-10-12 17:12 ` [PATCH v1 03/12] mm: add zone device coherent type memory support Alex Sierra
2021-10-12 17:12 ` [PATCH v1 04/12] mm: add device coherent vma selection for memory migration Alex Sierra
2021-10-12 17:12 ` [PATCH v1 05/12] drm/amdkfd: ref count init for device pages Alex Sierra
2021-10-12 17:12 ` [PATCH v1 06/12] drm/amdkfd: add SPM support for SVM Alex Sierra
2021-10-12 17:12 ` [PATCH v1 07/12] drm/amdkfd: coherent type as sys mem on migration to ram Alex Sierra
2021-10-12 17:12 ` [PATCH v1 08/12] lib: test_hmm add ioctl to get zone device type Alex Sierra
2021-10-12 17:12 ` [PATCH v1 09/12] lib: test_hmm add module param for " Alex Sierra
2021-10-12 17:12 ` [PATCH v1 10/12] lib: add support for device coherent type in test_hmm Alex Sierra
2021-10-12 17:12 ` [PATCH v1 11/12] tools: update hmm-test to support device coherent type Alex Sierra
2021-10-12 17:12 ` [PATCH v1 12/12] tools: update test_hmm script to support SP config Alex Sierra
2021-10-12 18:39 ` [PATCH v1 00/12] MEMORY_DEVICE_COHERENT for CPU-accessible coherent device memory Andrew Morton
2021-10-12 18:56 ` Jason Gunthorpe
2021-10-12 19:03 ` Andrew Morton
2021-10-12 23:04 ` Felix Kuehling
2021-10-13 13:34 ` Daniel Vetter
2021-10-12 19:00 ` Felix Kuehling
2021-10-12 19:11 ` Matthew Wilcox [this message]
2021-10-12 20:24 ` Felix Kuehling
2021-10-12 20:44 ` Darrick J. Wong
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