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be8a80b3e2
Patch series "start sorting out the ZONE_DEVICE refcount mess", v2. 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. It does not address the fsdax pages yet, which will be attacked in a follow on series. This patch (of 27): memremap.c is only built when CONFIG_ZONE_DEVICE is set, so remove the superflous extra check. Link: https://lkml.kernel.org/r/20220210072828.2930359-1-hch@lst.de Link: https://lkml.kernel.org/r/20220210072828.2930359-2-hch@lst.de Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Reviewed-by: Muchun Song <songmuchun@bytedance.com> Reviewed-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Miaohe Lin <linmiaohe@huawei.com> Tested-by: "Sierra Guiza, Alejandro (Alex)" <alex.sierra@amd.com> Cc: Felix Kuehling <Felix.Kuehling@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Christian Knig <christian.koenig@amd.com> Cc: "Pan, Xinhui" <Xinhui.Pan@amd.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Karol Herbst <kherbst@redhat.com> Cc: Lyude Paul <lyude@redhat.com> Cc: Alistair Popple <apopple@nvidia.com> Cc: Ralph Campbell <rcampbell@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.