On Tue, May 29, 2018 at 05:17:13PM -0400, Josef Bacik wrote: > From: Josef Bacik <jbacik@xxxxxx> > > Instead of forcing all file systems to get the right context on their > bio's, simply check for REQ_META to see if we need to issue as the root > blkg. We don't want to force all bio's to have the root blkg associated > with them if REQ_META is set, as some controllers (blk-iolatency) need > to know who the originating cgroup is so it can backcharge them for the > work they are doing. This helper will make sure that the controllers do > the proper thing wrt the IO priority and backcharging. > > Signed-off-by: Josef Bacik <jbacik@xxxxxx> Acked-by: Tejun Heo <tj@xxxxxxxxxx> Thanks. -- tejun
