Just a few grammar corrections since this is going into Documentation: > On Jan 9, 2019, at 12:14 PM, Yang Shi <yang.shi@xxxxxxxxxxxxxxxxx> wrote: > > Add desprition of wipe_on_offline interface in cgroup documents. Add a description of the wipe_on_offline interface to the cgroup documents. > Cc: Michal Hocko <mhocko@xxxxxxxx> > Cc: Johannes Weiner <hannes@xxxxxxxxxxx> > Cc: Shakeel Butt <shakeelb@xxxxxxxxxx> > Signed-off-by: Yang Shi <yang.shi@xxxxxxxxxxxxxxxxx> > --- > Documentation/admin-guide/cgroup-v2.rst | 9 +++++++++ > Documentation/cgroup-v1/memory.txt | 10 ++++++++++ > 2 files changed, 19 insertions(+) > > diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst > index 0290c65..e4ef08c 100644 > --- a/Documentation/admin-guide/cgroup-v2.rst > +++ b/Documentation/admin-guide/cgroup-v2.rst > @@ -1303,6 +1303,15 @@ PAGE_SIZE multiple when read back. > memory pressure happens. If you want to avoid that, force_empty will be > useful. > > + memory.wipe_on_offline > + > + This is similar to force_empty, but it just does memory reclaim > + asynchronously in css offline kworker. > + > + Writing into 1 will enable it, disable it by writing into 0. Writing a 1 will enable it; writing a 0 will disable it. > + > + It would reclaim as much as possible memory just as what force_empty does. It will reclaim as much memory as possible, just as force_empty does. > + > > Usage Guidelines > ~~~~~~~~~~~~~~~~ > diff --git a/Documentation/cgroup-v1/memory.txt b/Documentation/cgroup-v1/memory.txt > index 8e2cb1d..1c6e1ca 100644 > --- a/Documentation/cgroup-v1/memory.txt > +++ b/Documentation/cgroup-v1/memory.txt > @@ -71,6 +71,7 @@ Brief summary of control files. > memory.stat # show various statistics > memory.use_hierarchy # set/show hierarchical account enabled > memory.force_empty # trigger forced page reclaim > + memory.wipe_on_offline # trigger forced page reclaim when offlining > memory.pressure_level # set memory pressure notifications > memory.swappiness # set/show swappiness parameter of vmscan > (See sysctl's vm.swappiness) > @@ -581,6 +582,15 @@ hierarchical_<counter>=<counter pages> N0=<node 0 pages> N1=<node 1 pages> ... > > The "total" count is sum of file + anon + unevictable. > > +5.7 wipe_on_offline > + > +This is similar to force_empty, but it just does memory reclaim asynchronously > +in css offline kworker. > + > +Writing into 1 will enable it, disable it by writing into 0. Writing a 1 will enable it; writing a 0 will disable it. > + > +It would reclaim as much as possible memory just as what force_empty does. It will reclaim as much memory as possible, just as force_empty does. > + > 6. Hierarchy support > > The memory controller supports a deep hierarchy and hierarchical accounting. > -- > 1.8.3.1 >
