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authorTejun Heo <tj@kernel.org>2013-01-07 20:49:33 +0400
committerTejun Heo <tj@kernel.org>2013-01-07 20:50:28 +0400
commit12a9d2fef1d35770d3cdc2cd1faabb83c45bc0fa (patch)
treea7c50e81a638a156ce8d4f41dcab273397e6e474 /include/linux/cgroup.h
parentd5b1fe68baa7213f198e5be8cd1a1037258ab2c8 (diff)
downloadlinux-12a9d2fef1d35770d3cdc2cd1faabb83c45bc0fa.tar.xz
cgroup: implement cgroup_rightmost_descendant()
Implement cgroup_rightmost_descendant() which returns the right most descendant of the specified cgroup. This can be used to skip the cgroup's subtree while iterating with cgroup_for_each_descendant_pre(). Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Michal Hocko <mhocko@suse.cz> Acked-by: Li Zefan <lizefan@huawei.com>
Diffstat (limited to 'include/linux/cgroup.h')
-rw-r--r--include/linux/cgroup.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 942e68705577..8118a3120378 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -558,6 +558,7 @@ static inline struct cgroup* task_cgroup(struct task_struct *task,
struct cgroup *cgroup_next_descendant_pre(struct cgroup *pos,
struct cgroup *cgroup);
+struct cgroup *cgroup_rightmost_descendant(struct cgroup *pos);
/**
* cgroup_for_each_descendant_pre - pre-order walk of a cgroup's descendants