From: Christoph Hellwig <hch@lst.de>
To: Ralph Campbell <rcampbell@nvidia.com>
Cc: linux-mm@kvack.org, kvm-ppc@vger.kernel.org,
nouveau@lists.freedesktop.org, linux-kernel@vger.kernel.org,
Dan Williams <dan.j.williams@intel.com>,
Ira Weiny <ira.weiny@intel.com>,
Matthew Wilcox <willy@infradead.org>,
Jerome Glisse <jglisse@redhat.com>,
John Hubbard <jhubbard@nvidia.com>,
Alistair Popple <apopple@nvidia.com>,
Christoph Hellwig <hch@lst.de>, Jason Gunthorpe <jgg@nvidia.com>,
Bharata B Rao <bharata@linux.ibm.com>, Zi Yan <ziy@nvidia.com>,
"Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
Yang Shi <yang.shi@linux.alibaba.com>,
Paul Mackerras <paulus@ozlabs.org>,
Ben Skeggs <bskeggs@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [RFC PATCH v3 1/2] ext4/xfs: add page refcount helper
Date: Fri, 2 Oct 2020 07:56:27 +0200 [thread overview]
Message-ID: <20201002055627.GA8891@lst.de> (raw)
In-Reply-To: <20201001181715.17416-2-rcampbell@nvidia.com>
On Thu, Oct 01, 2020 at 11:17:14AM -0700, Ralph Campbell wrote:
> 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>
Looks good:
Reviewed-by: Christoph Hellwig <hch@lst.de>
next prev parent reply other threads:[~2020-10-02 5:56 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-01 18:17 [RFC PATCH v3 0/2] mm: remove extra ZONE_DEVICE struct page refcount Ralph Campbell
2020-10-01 18:17 ` [RFC PATCH v3 1/2] ext4/xfs: add page refcount helper Ralph Campbell
2020-10-02 5:56 ` Christoph Hellwig [this message]
2020-10-05 16:29 ` Ralph Campbell
2020-10-01 18:17 ` [RFC PATCH v3 2/2] mm: remove extra ZONE_DEVICE struct page refcount Ralph Campbell
2020-10-02 5:59 ` Christoph Hellwig
2020-10-05 16:40 ` Ralph Campbell
2020-10-08 5:17 ` Ram Pai
2020-10-08 16:45 ` Ralph Campbell
2020-10-05 16:56 ` [RFC PATCH v3 0/2] " Matthew Wilcox
2020-10-05 18:24 ` Dan Williams
2021-05-13 13:15 ` Matthew Wilcox
2021-05-13 17:35 ` Ralph Campbell
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