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6769d1bcd3
Add a pfn error code to communicate that hva_to_pfn() failed because I/O was needed and disallowed, and convert @async to a constant @no_wait boolean. This will allow eliminating the @no_wait param by having callers pass in FOLL_NOWAIT along with other FOLL_* flags. Tested-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: David Stevens <stevensd@chromium.org> Co-developed-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Sean Christopherson <seanjc@google.com> Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-ID: <20241010182427.1434605-17-seanjc@google.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 reStructuredText 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.