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be16c1fd99
vaddr_get_pfn() simply returns 0 on success. Have it report the number of pfns successfully gotten instead, whether from page pinning or follow_fault_pfn(), which will be used later when batching pinning. Change the last check in vfio_pin_pages_remote() for consistency with the other two. Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.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.