On Tue, Jun 05, 2018 at 09:29:42AM -0400, Josef Bacik wrote: > From: Tejun Heo <tj@xxxxxxxxxx> > > Memory allocations can induce swapping via kswapd or direct reclaim. If > we are having IO done for us by kswapd and don't actually go into direct > reclaim we may never get scheduled for throttling. So instead check to > see if our cgroup is congested, and if so schedule the throttling. > Before we return to user space the throttling stuff will only throttle > if we actually required it. > > Signed-off-by: Tejun Heo <tj@xxxxxxxxxx> Looks good to me now, thanks. Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
