• Roman Gushchin's avatar
    selftests: cgroup: add memory controller self-tests · 84092dbc
    Roman Gushchin authored
    Cgroups are used for controlling the physical resource distribution
    (memory, CPU, io, etc) and often are used as basic building blocks
    for large distributed computing systems. Even small differences
    in the actual behavior may lead to significant incidents.
    
    The codebase is under the active development, which will unlikely
    stop at any time soon. Also it's scattered over different kernel
    subsystems, which makes regressions more probable.
    
    Given that, the lack of any tests is crying.
    
    This patch implements some basic tests for the memory controller,
    as well as a minimal required framework. It doesn't pretend for a
    very good coverage, but pretends to be a starting point.
    
    Hopefully, any following significant changes will include corresponding
    tests.
    
    Tests for CPU and io controllers, as well as cgroup core
    are next in the todo list.
    Signed-off-by: default avatarRoman Gushchin <guro@fb.com>
    Cc: Tejun Heo <tj@kernel.org>
    Cc: Shuah Khan <shuah@kernel.org>
    Cc: Johannes Weiner <hannes@cmpxchg.org>
    Cc: Michal Hocko <mhocko@suse.com>
    Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
    Cc: kernel-team@fb.com
    Cc: linux-kselftest@vger.kernel.org
    Cc: linux-kernel@vger.kernel.org
    Acked-by: default avatarTejun Heo <tj@kernel.org>
    Signed-off-by: default avatarShuah Khan (Samsung OSG) <shuah@kernel.org>
    84092dbc
cgroup_util.h 1.43 KB