[PATCH 5.15.y 1/6] futex: Rename __unqueue_futex()

[Sasha Levin <sashal@kernel.org>]

From: Peter Zijlstra <peterz@infradead.org>

[ Upstream commit af92dcea186ed7bcd5cc013163ec47a8a135ee97 ]

In order to prepare introducing these symbols into the global
namespace; rename:

  s/__unqueue_futex/__futex_unqueue/g

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: André Almeida <andrealmeid@collabora.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: André Almeida <andrealmeid@collabora.com>
Link: https://lore.kernel.org/r/20210923171111.300673-7-andrealmeid@collabora.com
Stable-dep-of: a3b8d46fe401 ("futex: Prevent rcuwait use-after-free during requeue PI")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/futex/core.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/kernel/futex/core.c b/kernel/futex/core.c
index 8a3a27967973a..ff61ed8184a32 100644
--- a/kernel/futex/core.c
+++ b/kernel/futex/core.c
@@ -1508,12 +1508,12 @@ static int futex_lock_pi_atomic(u32 __user *uaddr, struct futex_hash_bucket *hb,
 }
 
 /**
- * __unqueue_futex() - Remove the futex_q from its futex_hash_bucket
+ * __futex_unqueue() - Remove the futex_q from its futex_hash_bucket
  * @q:	The futex_q to unqueue
  *
  * The q->lock_ptr must not be NULL and must be held by the caller.
  */
-static void __unqueue_futex(struct futex_q *q)
+static void __futex_unqueue(struct futex_q *q)
 {
 	struct futex_hash_bucket *hb;
 
@@ -1540,13 +1540,13 @@ static void mark_wake_futex(struct wake_q_head *wake_q, struct futex_q *q)
 		return;
 
 	get_task_struct(p);
-	__unqueue_futex(q);
+	__futex_unqueue(q);
 	/*
 	 * The waiting task can free the futex_q as soon as q->lock_ptr = NULL
 	 * is written, without taking any locks. This is possible in the event
 	 * of a spurious wakeup, for example. A memory barrier is required here
 	 * to prevent the following store to lock_ptr from getting ahead of the
-	 * plist_del in __unqueue_futex().
+	 * plist_del in __futex_unqueue().
 	 */
 	smp_store_release(&q->lock_ptr, NULL);
 
@@ -1998,7 +1998,7 @@ void requeue_pi_wake_futex(struct futex_q *q, union futex_key *key,
 {
 	q->key = *key;
 
-	__unqueue_futex(q);
+	__futex_unqueue(q);
 
 	WARN_ON(!q->rt_waiter);
 	q->rt_waiter = NULL;
@@ -2566,7 +2566,7 @@ static int unqueue_me(struct futex_q *q)
 			spin_unlock(lock_ptr);
 			goto retry;
 		}
-		__unqueue_futex(q);
+		__futex_unqueue(q);
 
 		BUG_ON(q->pi_state);
 
@@ -2583,7 +2583,7 @@ static int unqueue_me(struct futex_q *q)
  */
 static void unqueue_me_pi(struct futex_q *q)
 {
-	__unqueue_futex(q);
+	__futex_unqueue(q);
 
 	BUG_ON(!q->pi_state);
 	put_pi_state(q->pi_state);
-- 
2.53.0