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76839e2f1f
Currently getsockopt does not support PACKET_COPY_THRESH, and we are unable to get the value of PACKET_COPY_THRESH socket option through getsockopt. This patch adds getsockopt support for PACKET_COPY_THRESH. In addition, this patch converts access to copy_thresh to READ_ONCE/WRITE_ONCE. Signed-off-by: Juntong Deng <juntong.deng@outlook.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Reviewed-by: Jason Xing <kerneljasonxing@gmail.com> Link: https://lore.kernel.org/r/AM6PR03MB58487A9704FD150CF76F542899272@AM6PR03MB5848.eurprd03.prod.outlook.com Signed-off-by: Jakub Kicinski <kuba@kernel.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.