Re: [PATCH 1/5] cgroup: record ancestor IDs and reimplement cgroup_is_descendant() using it

[Jan Engelhardt]

On Tuesday 2015-11-17 20:40, Tejun Heo wrote:
>+static inline bool cgroup_is_descendant(struct cgroup *cgrp,
>+					struct cgroup *ancestor)

(const struct group *cgrp, const struct group *ancestor)

>+{
>+	if (cgrp->root != ancestor->root || cgrp->level < ancestor->level)
>+		return false;
>+	return cgrp->ancestor_ids[ancestor->level] == ancestor->id;
>+}
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