On Mon, Sep 26, 2016 at 02:34:33PM +0200, Takashi Iwai wrote: > On Thu, 22 Sep 2016 19:29:08 +0200, > Greg Kroah-Hartman wrote: > > > > 4.4-stable review patch. If anyone has any objections, please let me know. > > > > ------------------ > > > > From: Zefan Li <lizefan@xxxxxxxxxx> > > > > commit 06f4e94898918bcad00cdd4d349313a439d6911e upstream. > > > > A new task inherits cpus_allowed and mems_allowed masks from its parent, > > but if someone changes cpuset's config by writing to cpuset.cpus/cpuset.mems > > before this new task is inserted into the cgroup's task list, the new task > > won't be updated accordingly. > > > > Signed-off-by: Zefan Li <lizefan@xxxxxxxxxx> > > Signed-off-by: Tejun Heo <tj@xxxxxxxxxx> > > Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > > > > --- > > kernel/cpuset.c | 15 +++++++++++++++ > > 1 file changed, 15 insertions(+) > > > > --- a/kernel/cpuset.c > > +++ b/kernel/cpuset.c > > @@ -2074,6 +2074,20 @@ static void cpuset_bind(struct cgroup_su > > mutex_unlock(&cpuset_mutex); > > } > > > > +/* > > + * Make sure the new task conform to the current state of its parent, > > + * which could have been changed by cpuset just after it inherits the > > + * state from the parent and before it sits on the cgroup's task list. > > + */ > > +void cpuset_fork(struct task_struct *task) > > This causes a build warning: > > kernel/cpuset.c:2101:2: warning: (near initialization for 'cpuset_cgrp_subsys.fork') [enabled by default] > .fork = cpuset_fork, > ^ > > where fork op in 4.4 kernel has still priv argument that was dropped > recently. Thanks, I have a patch in my tree already for this and it will show up in the next release. greg k-h -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html