From: "Theodore Ts'o" <tytso@mit.edu>
To: Alex Sierra <alex.sierra@amd.com>
Cc: akpm@linux-foundation.org, 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
Subject: Re: [PATCH v1 01/14] ext4/xfs: add page refcount helper
Date: Wed, 25 Aug 2021 11:09:22 -0400 [thread overview]
Message-ID: <YSZdIkrCKQRS+Hjx@mit.edu> (raw)
In-Reply-To: <20210825034828.12927-2-alex.sierra@amd.com>
On Tue, Aug 24, 2021 at 10:48:15PM -0500, Alex Sierra wrote:
> From: Ralph Campbell <rcampbell@nvidia.com>
>
> There are several places where ZONE_DEVICE struct pages assume a reference
> count == 1 means the page is idle and free. Instead of open coding this,
> add a helper function to hide this detail.
>
> Signed-off-by: Ralph Campbell <rcampbell@nvidia.com>
> Signed-off-by: Alex Sierra <alex.sierra@amd.com>
> Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Theodore Ts'o <tytso@mit.edu>
next prev parent reply other threads:[~2021-08-25 15:19 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-25 3:48 [PATCH v1 00/14] Add MEMORY_DEVICE_PUBLIC for CPU-accessible coherent device memory Alex Sierra
2021-08-25 3:48 ` [PATCH v1 01/14] ext4/xfs: add page refcount helper Alex Sierra
2021-08-25 7:35 ` Christoph Hellwig
2021-08-25 15:09 ` Theodore Ts'o [this message]
2021-08-25 15:49 ` Darrick J. Wong
2021-08-25 3:48 ` [PATCH v1 02/14] mm: remove extra ZONE_DEVICE struct page refcount Alex Sierra
2021-08-25 7:35 ` Christoph Hellwig
2021-08-25 11:15 ` Vlastimil Babka
2021-08-25 17:49 ` Ralph Campbell
2021-08-27 11:26 ` Vlastimil Babka
2021-08-25 3:48 ` [PATCH v1 03/14] mm: add iomem vma selection for memory migration Alex Sierra
2021-08-25 7:40 ` Christoph Hellwig
2021-08-25 7:46 ` Christoph Hellwig
2021-08-25 18:24 ` Sierra Guiza, Alejandro (Alex)
2021-08-26 22:27 ` Felix Kuehling
2021-08-30 8:28 ` Christoph Hellwig
2021-08-30 17:04 ` Felix Kuehling
2021-09-01 8:29 ` Christoph Hellwig
2021-09-01 15:40 ` Felix Kuehling
2021-09-01 22:03 ` Dave Chinner
2021-09-01 23:07 ` Felix Kuehling
2021-09-02 1:14 ` Dave Chinner
2021-09-09 4:55 ` Felix Kuehling
2021-09-02 8:18 ` Christoph Hellwig
2021-09-02 18:07 ` Dan Williams
2021-09-09 4:02 ` Felix Kuehling
2021-08-25 14:24 ` Felix Kuehling
2021-08-25 3:48 ` [PATCH v1 04/14] mm: add zone device public type memory support Alex Sierra
2021-08-25 3:48 ` [PATCH v1 05/14] drm/amdkfd: ref count init for device pages Alex Sierra
2021-08-25 14:34 ` Felix Kuehling
2021-08-25 3:48 ` [PATCH v1 06/14] drm/amdkfd: add SPM support for SVM Alex Sierra
2021-08-25 14:45 ` Felix Kuehling
2021-08-25 3:48 ` [PATCH v1 07/14] drm/amdkfd: public type as sys mem on migration to ram Alex Sierra
2021-08-25 3:48 ` [PATCH v1 08/14] mm: add public type support to migrate_vma helpers Alex Sierra
2021-08-25 7:47 ` Christoph Hellwig
2021-08-25 3:48 ` [PATCH v1 09/14] mm: call pgmap->ops->page_free for DEVICE_PUBLIC pages Alex Sierra
2021-08-25 7:46 ` Christoph Hellwig
2021-08-25 3:48 ` [PATCH v1 10/14] lib: test_hmm add ioctl to get zone device type Alex Sierra
2021-08-25 3:48 ` [PATCH v1 11/14] lib: test_hmm add module param for " Alex Sierra
2021-08-25 3:48 ` [PATCH v1 12/14] lib: add support for device public type in test_hmm Alex Sierra
2021-08-25 3:48 ` [PATCH v1 13/14] tools: update hmm-test to support device public type Alex Sierra
2021-08-25 3:48 ` [PATCH v1 14/14] tools: update test_hmm script to support SP config Alex Sierra
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