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28339b21a3
In most cases, table, name and handle is sufficient for userspace to identify an object that has been deleted. Skipping unneeded fields in the netlink attributes in the message saves bandwidth (ie. less chances of hitting ENOBUFS). Rules are an exception: the existing userspace monitor code relies on the rule definition. This exception can be removed by implementing a rule cache in userspace, this is already supported by the tracing infrastructure. Regarding flowtables, incremental deletion of devices is possible. Skipping a full notification allows userspace to differentiate between flowtable removal and incremental removal of devices. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.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.