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1f4c3dce91
l2tp netlink and procfs/debugfs iterate over tunnel and session lists to obtain data. They currently use very inefficient get_nth functions to do so. Replace these with get_next. For netlink, use nl cb->ctx[] for passing state instead of the obsolete cb->args[]. l2tp_tunnel_get_nth and l2tp_session_get_nth are no longer used so they can be removed. Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: Tom Parkin <tparkin@katalix.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.