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ca6969013d
With Xen PV Display driver in use the "expected" VM_DONTEXPAND flag is not set (neither explicitly nor implicitly), so the driver hits the code path in drm_gem_mmap_obj() which triggers the WARNING. Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Link: https://lore.kernel.org/r/1652104303-5098-1-git-send-email-olekstysh@gmail.com Signed-off-by: Juergen Gross <jgross@suse.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.