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Petr Machata says: ==================== selftests: net: Introduce deferred commands Recently, a defer helper was added to Python selftests. The idea is to keep cleanup commands close to their dirtying counterparts, thereby making it more transparent what is cleaning up what, making it harder to miss a cleanup, and make the whole cleanup business exception safe. All these benefits are applicable to bash as well, exception safety can be interpreted in terms of safety vs. a SIGINT. This patchset therefore introduces a framework of several helpers that serve to schedule cleanups in bash selftests. - Patch #1 has more details about the primitives being introduced. Patch #2 adds a fallback cleanup() function to lib.sh, because ideally selftests wouldn't need to introduce a dedicated cleanup function at all. - Patch #3 adds a parameter to stop_traffic(), which makes it possible to start other background processes after the traffic is started without confusing the cleanup. - Patches #4 to #10 convert a number of selftests. The goal was to convert all tests that use start_traffic / stop_traffic to the defer framework. Leftover traffic generators are a particularly painful sort of a missed cleanup. Normal unfinished cleanups can usually be cleaned up simply by rerunning the test and interrupting it early to let the cleanups run again / in full. This does not work with stop_traffic, because it is only issued at the end of the test case that starts the traffic. At the same time, leftover traffic generators influence follow-up test runs, and are hard to notice. The tests were however converted whole-sale, not just their traffic bits. Thus they form a proof of concept of the defer framework. ==================== Link: https://patch.msgid.link/cover.1729157566.git.petrm@nvidia.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
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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 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.