sched/fair: Remove cfs_rq_tg_path()

cfs_rq_tg_path() is used by a tracepoint-to traceevent (tp-2-te)
converter to format the path of a taskgroup or autogroup respectively.
It doesn't have any in-kernel users after the removal of the
sched_trace_cfs_rq_path() helper function.

cfs_rq_tg_path() can be coded in a tp-2-te converter.

Remove it from kernel/sched/fair.c.

Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220428144338.479094-3-qais.yousef@arm.com

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 19803e1..6ca054b 100644 (file)
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -313,19 +313,6 @@ const struct sched_class fair_sched_class;
 #define for_each_sched_entity(se) \
                for (; se; se = se->parent)
 
-static inline void cfs_rq_tg_path(struct cfs_rq *cfs_rq, char *path, int len)
-{
-       if (!path)
-               return;
-
-       if (cfs_rq && task_group_is_autogroup(cfs_rq->tg))
-               autogroup_path(cfs_rq->tg, path, len);
-       else if (cfs_rq && cfs_rq->tg->css.cgroup)
-               cgroup_path(cfs_rq->tg->css.cgroup, path, len);
-       else
-               strlcpy(path, "(null)", len);
-}
-
 static inline bool list_add_leaf_cfs_rq(struct cfs_rq *cfs_rq)
 {
        struct rq *rq = rq_of(cfs_rq);
@@ -493,12 +480,6 @@ static int se_is_idle(struct sched_entity *se)
 #define for_each_sched_entity(se) \
                for (; se; se = NULL)
 
-static inline void cfs_rq_tg_path(struct cfs_rq *cfs_rq, char *path, int len)
-{
-       if (path)
-               strlcpy(path, "(null)", len);
-}
-
 static inline bool list_add_leaf_cfs_rq(struct cfs_rq *cfs_rq)
 {
        return true;