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56f434f40f
Now that we have KERNEL_HEADER_TEST all headers are generally compile tested, so relying on makefile tricks to avoid compiling code that depends on CONFIG_MMU_NOTIFIER is more annoying. Instead follow the usual pattern and provide most of the header with only the functions stubbed out when CONFIG_MMU_NOTIFIER is disabled. This ensures code compiles no matter what the config setting is. While here, struct mmu_notifier_mm is private to mmu_notifier.c, move it. Link: https://lore.kernel.org/r/20191112202231.3856-2-jgg@ziepe.ca Reviewed-by: Jérôme Glisse <jglisse@redhat.com> Tested-by: Ralph Campbell <rcampbell@nvidia.com> Reviewed-by: John Hubbard <jhubbard@nvidia.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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.