Hello, Ted. On Mon, Jun 15, 2015 at 07:35:19PM -0400, Theodore Ts'o wrote: > So if there is some way we can signal to any cgroup that that might be > throttling writeback or disk I/O that the jbd/jbd2 process should be > considered privileged, that would be a good since it would allow us to > avoid a potential priority inversion problem.
I see. In the long term, I think we might need to come up with a way to overcharge a slower cgroup to avoid blocking faster ones for cases where some IOs are depended upon by more than one cgroups. That'd take quite a bit of work from blkcg side. Will think more about it. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
