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4109a2c3b9
First thing tipc_udp_recv() does is to use rcu_dereference_sk_user_data(), and this is really hinting we already own rcu_read_lock() from the caller (UDP stack). No need to add another rcu_read_lock()/rcu_read_unlock() pair. Also use rcu_dereference() instead of rcu_dereference_rtnl() in the data path. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Jon Maloy <jon.maloy@ericsson.com> Cc: Ying Xue <ying.xue@windriver.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 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.