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40ac240c2e
udpv6_sendmsg() doesn't need dst after calling ip6_make_skb(), so instead of taking an additional reference inside ip6_setup_cork() and releasing the initial one afterwards, we can hand over a reference into ip6_make_skb() saving two atomics. The only other user of ip6_setup_cork() is ip6_append_data() and it requires an extra dst_hold(). Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Reviewed-by: Willem de Bruijn <willemb@google.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.