[PATCH 1/1] sched/headers: remove double_lock function

[Jianxing Wang]

commit 8c8a743c5087b ("sched/numa: Use {cpu, pid} to create task groups
for shared faults") import double_lock but
commit 60e69eed85bb ("sched/numa: Fix task_numa_free() lockdep splat")
replace it with double_lock_irq, now nobody care it, just remove it.

Cc: Mike Galbraith <bitbucket@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Signed-off-by: Jianxing Wang <wangjianxing@xxxxxxxxxxx>
---
 kernel/sched/sched.h | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 58263f90c559..f8ca414177bd 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -2586,15 +2586,6 @@ static inline void double_unlock_balance(struct rq *this_rq, struct rq *busiest)
 	lock_set_subclass(&__rq_lockp(this_rq)->dep_map, 0, _RET_IP_);
 }
 
-static inline void double_lock(spinlock_t *l1, spinlock_t *l2)
-{
-	if (l1 > l2)
-		swap(l1, l2);
-
-	spin_lock(l1);
-	spin_lock_nested(l2, SINGLE_DEPTH_NESTING);
-}
-
 static inline void double_lock_irq(spinlock_t *l1, spinlock_t *l2)
 {
 	if (l1 > l2)
-- 
2.31.1