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[ Upstream commit ab42f4d9a26f1723dcfd6c93fcf768032b2bb5e7 ] We check for the existence of ->sv_stats elsewhere except in the core processing code. It appears that only nfsd actual exports these values anywhere, everybody else just has a write only copy of sv_stats in their svc_program. Add a check for ->sv_stats before every adjustment to allow us to eliminate the stats struct from all the users who don't report the stats. Signed-off-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.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.