Re: [PATCH] selftests/vm: enable running select groups of tests

[Andrew Morton]

On Tue,  5 Jul 2022 14:56:05 -0400 Joel Savitz <jsavitz@xxxxxxxxxx> wrote:

> Add the ability to run one or more groups of vm tests (specified
> by the environment variable TEST_ITEMS). Preserve existing default
> behavior of running all tests when TEST_ITEMS is empty or "default".

What is the reason for this?  What's the use case?

And why via the environment rather than via commandline args?