Chuck Lever 5e76b25d7c NFSD: Reduce amount of struct nfsd4_compoundargs that needs clearing
[ Upstream commit 3fdc546462348b8a497c72bc894e0cde9f10fc40 ]

Have SunRPC clear everything except for the iops array. Then have
each NFSv4 XDR decoder clear it's own argument before decoding.

Now individual operations may have a large argument struct while not
penalizing the vast majority of operations with a small struct.

And, clearing the argument structure occurs as the argument fields
are initialized, enabling the CPU to do write combining on that
memory. In some cases, clearing is not even necessary because all
of the fields in the argument structure are initialized by the
decoder.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-06-21 14:54:00 +02:00
2024-06-21 14:52:48 +02:00
2020-10-17 11:18:18 -07:00
2023-06-21 15:45:38 +02:00
2024-06-16 13:32:37 +02:00

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.
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