On Thu, Feb 20, 2020 at 11:51:53AM -0500, Dan Schatzberg wrote: > The current code only associates with the existing blkcg when aio is > used to access the backing file. This patch covers all types of i/o to > the backing file and also associates the memcg so if the backing file is > on tmpfs, memory is charged appropriately. > > This patch also exports cgroup_get_e_css so it can be used by the loop > module. > > Signed-off-by: Dan Schatzberg <schatzberg.dan@xxxxxxxxx> The cgroup bits look good to me. Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>