On Tue, Jun 11, 2019 at 4:18 PM Roman Gushchin <guro@xxxxxx> wrote: > > There is no point in checking the root_cache->memcg_params.dying > flag on kmem_cache creation path. New allocations shouldn't be > performed using a dead root kmem_cache, Yes, it's the user's responsibility to synchronize the kmem cache destruction and allocations. > so no new memcg kmem_cache > creation can be scheduled after the flag is set. And if it was > scheduled before, flush_memcg_workqueue() will wait for it anyway. > > So let's drop this check to simplify the code. > > Signed-off-by: Roman Gushchin <guro@xxxxxx> Reviewed-by: Shakeel Butt <shakeelb@xxxxxxxxxx>