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Philo Lu
dab78a1745
Add a new hash list, hash4, in udp table. It will be used to implement 4-tuple hash for connected udp sockets. This patch adds the hlist to table, and implements helpers and the initialization. 4-tuple hash is implemented in the following patch. hash4 uses hlist_nulls to avoid moving wrongly onto another hlist due to concurrent rehash, because rehash() can happen with lookup(). Co-developed-by: Cambda Zhu <cambda@linux.alibaba.com> Signed-off-by: Cambda Zhu <cambda@linux.alibaba.com> Co-developed-by: Fred Chen <fred.cc@alibaba-inc.com> Signed-off-by: Fred Chen <fred.cc@alibaba-inc.com> Co-developed-by: Yubing Qiu <yubing.qiuyubing@alibaba-inc.com> Signed-off-by: Yubing Qiu <yubing.qiuyubing@alibaba-inc.com> Signed-off-by: Philo Lu <lulie@linux.alibaba.com> Acked-by: Willem de Bruijn <willemb@google.com> Acked-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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.