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ee403248fa
For some reason default_device_ops kept two exit method: 1) default_device_exit() is called for each netns being dismantled in a cleanup_net() round. This acquires rtnl for each invocation. 2) default_device_exit_batch() is called once with the list of all netns int the batch, allowing for a single rtnl invocation. Get rid of the .exit() method to handle the logic from default_device_exit_batch(), to decrease the number of rtnl acquisition to one. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: David Ahern <dsahern@kernel.org> 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.