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commit27dc0700c3upstream. The query parameter block might contain additional information and can be extended in the future. If the size of the block does not suffice we get an error code of rc=0x100. The buffer will contain all information up to the specified size and the hypervisor/guest simply do not need the additional information as they do not know about the new data. That means that we can (and must) accept rc=0x100 as success. Cc: stable@vger.kernel.org Reviewed-by: Cornelia Huck <cohuck@redhat.com> Fixes:5abb9351df("s390/uv: introduce guest side ultravisor code") Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.