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David S. Miller 2e51855194 Merge branch 'selftests-forwarding-sysctl'
Petr Machata says:

====================
selftests: forwarding: Updates to sysctl handling

Some selftests need to adjust sysctl settings. In order to be neutral to
the system that the test is run on, it is a good practice to change back
to the original setting after the test ends. That involves some
boilerplate that can be abstracted away.

In patch #1, introduce two functions, sysctl_set() and sysctl_restore().
The former stores the current value of a given setting, and sets a new
value. The latter restores the setting to the previously-stored value.

In patch #2, use these wrappers in a number of tests.

Additionally in patch #3, fix a problem in mirror_gre_nh.sh, which
neglected to set a sysctl that's crucial for the test to work.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
History 2018-05-03 13:37:03 -04:00
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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.
See Documentation/00-INDEX for a list of what is contained in each file.

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.