On 20.01.2021 12:56, Valeriy Vdovin wrote: > The flag will be used in subsequent patches > Signed-off-by: Valeriy Vdovin <valeriy.vdo...@virtuozzo.com>
Reviewed-by: Kirill Tkhai <ktk...@virtuozzo.com> > --- > include/linux/cgroup-defs.h | 2 ++ > include/linux/cgroup.h | 5 +++++ > kernel/cgroup/cgroup.c | 1 + > 3 files changed, 8 insertions(+) > > diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h > index a3b309ab1a90..5ee5f10e3de7 100644 > --- a/include/linux/cgroup-defs.h > +++ b/include/linux/cgroup-defs.h > @@ -57,6 +57,8 @@ enum { > > /* bits in struct cgroup flags field */ > enum { > + /* Control Cgroup is dead */ > + CGRP_REMOVED, > /* Control Group requires release notifications to userspace */ > CGRP_NOTIFY_ON_RELEASE, > /* > diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h > index c0a42c3d43fa..dfd9460986ee 100644 > --- a/include/linux/cgroup.h > +++ b/include/linux/cgroup.h > @@ -922,6 +922,11 @@ static inline bool cgroup_task_frozen(struct task_struct > *task) > return task->frozen; > } > > +static inline int cgroup_is_removed(const struct cgroup *cgrp) > +{ > + return test_bit(CGRP_REMOVED, &cgrp->flags); > +} > + > #else /* !CONFIG_CGROUPS */ > > static inline void cgroup_enter_frozen(void) { } > diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c > index 797a3971ab46..447c8f003496 100644 > --- a/kernel/cgroup/cgroup.c > +++ b/kernel/cgroup/cgroup.c > @@ -5562,6 +5562,7 @@ static int cgroup_destroy_locked(struct cgroup *cgrp) > tcgrp->freezer.nr_frozen_descendants--; > } > spin_unlock_irq(&css_set_lock); > + set_bit(CGRP_REMOVED, &cgrp->flags); > > cgroup1_check_for_release(parent); > > _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel