Re: [PATCH v2 2/3] blkcg: introduce io.sync_isolation

2019-03-07 Thread Josef Bacik
On Thu, Mar 07, 2019 at 07:08:33PM +0100, Andrea Righi wrote: > Add a flag to the blkcg cgroups to make sync()'ers in a cgroup only be > allowed to write out pages that have been dirtied by the cgroup itself. > > This flag is disabled by default (meaning that we are not changing the > previous beh

[PATCH v2 2/3] blkcg: introduce io.sync_isolation

2019-03-07 Thread Andrea Righi
Add a flag to the blkcg cgroups to make sync()'ers in a cgroup only be allowed to write out pages that have been dirtied by the cgroup itself. This flag is disabled by default (meaning that we are not changing the previous behavior by default). When this flag is enabled any cgroup can write out o