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This directory contains example configs to use ktest for various tasks.
The configs still need to be customized for your environment, but it
is broken up by task which makes it easier to understand how to set up
ktest.

The configs are based off of real working configs but have been modified
and commented to show more generic use cases that are more helpful for
developers.

crosstests.conf - this config shows an example of testing a git repo against
    lots of different architectures. It only does build tests, but makes
    it easy to compile test different archs. You can download the arch
    cross compilers from:
  http://kernel.org/pub/tools/crosstool/files/bin/x86_64/

test.conf - A generic example of a config. This is based on an actual config
     used to perform real testing.

kvm.conf - A example of a config that is used to test a virtual guest running
     on a host.

snowball.conf - An example config that was used to demo ktest.pl against
     a snowball ARM board.

include/  -  The include directory holds default configs that can be
    included into other configs. This is a real use example that shows how
    to reuse configs for various machines or set ups. The files here
    are included by other config files, where the other config files define
    options and variables that will make the included config work for the
    given environment.


48834cefece7804d38fc5d85382edf77 (diff)
cgroup: don't online subsystems before cgroup_name/path() are operational
While refactoring cgroup creation, a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") incorrectly onlined subsystems before the new cgroup is associated with it kernfs_node. This is fine for cgroup proper but cgroup_name/path() depend on the associated kernfs_node and if a subsystem makes the new cgroup_subsys_state visible, which they're allowed to after onlining, it can lead to NULL dereference. The current code performs cgroup creation and subsystem onlining in cgroup_create() and cgroup_mkdir() makes the cgroup and subsystems visible afterwards. There's no reason to online the subsystems early and we can simply drop cgroup_apply_control_enable() call from cgroup_create() so that the subsystems are onlined and made visible at the same time. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Fixes: a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") Cc: stable@vger.kernel.org # v4.6+
Diffstat (limited to 'tools/testing/selftests/rcutorture/bin/functions.sh')