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-rw-r--r--include/linux/cgroup.h17
1 files changed, 7 insertions, 10 deletions
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 815fff49d555..d7ddebd0cdec 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -304,6 +304,11 @@ void css_task_iter_end(struct css_task_iter *it);
* Inline functions.
*/
+static inline u64 cgroup_id(struct cgroup *cgrp)
+{
+ return cgrp->kn->id;
+}
+
/**
* css_get - obtain a reference on the specified css
* @css: target css
@@ -565,7 +570,7 @@ static inline bool cgroup_is_descendant(struct cgroup *cgrp,
{
if (cgrp->root != ancestor->root || cgrp->level < ancestor->level)
return false;
- return cgrp->ancestor_ids[ancestor->level] == ancestor->id;
+ return cgrp->ancestor_ids[ancestor->level] == cgroup_id(ancestor);
}
/**
@@ -687,17 +692,13 @@ static inline void cgroup_kthread_ready(void)
current->no_cgroup_migration = 0;
}
-static inline u64 cgroup_get_kernfs_id(struct cgroup *cgrp)
-{
- return cgrp->kn->id;
-}
-
void cgroup_path_from_kernfs_id(u64 id, char *buf, size_t buflen);
#else /* !CONFIG_CGROUPS */
struct cgroup_subsys_state;
struct cgroup;
+static inline u64 cgroup_id(struct cgroup *cgrp) { return 1; }
static inline void css_get(struct cgroup_subsys_state *css) {}
static inline void css_put(struct cgroup_subsys_state *css) {}
static inline int cgroup_attach_task_all(struct task_struct *from,
@@ -717,10 +718,6 @@ static inline int cgroup_init_early(void) { return 0; }
static inline int cgroup_init(void) { return 0; }
static inline void cgroup_init_kthreadd(void) {}
static inline void cgroup_kthread_ready(void) {}
-static inline union u64 cgroup_get_kernfs_id(struct cgroup *cgrp)
-{
- return 0;
-}
static inline struct cgroup *cgroup_parent(struct cgroup *cgrp)
{