Merge remote-tracking branch 'linus/master' into testing

1 files changed, 16 insertions, 6 deletions

diff --git a/ipc/util.h b/ipc/util.h
index 2b0bdd5d92c..b6a6a88f300 100644
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -159,21 +159,31 @@ static inline int ipc_checkid(struct kern_ipc_perm *ipcp, int uid)
 	return uid / SEQ_MULTIPLIER != ipcp->seq;
 }
 
-static inline void ipc_lock_by_ptr(struct kern_ipc_perm *perm)
+static inline void ipc_lock_object(struct kern_ipc_perm *perm)
 {
-	rcu_read_lock();
 	spin_lock(&perm->lock);
 }
 
-static inline void ipc_unlock(struct kern_ipc_perm *perm)
+static inline void ipc_unlock_object(struct kern_ipc_perm *perm)
 {
 	spin_unlock(&perm->lock);
-	rcu_read_unlock();
 }
 
-static inline void ipc_lock_object(struct kern_ipc_perm *perm)
+static inline void ipc_assert_locked_object(struct kern_ipc_perm *perm)
 {
-	spin_lock(&perm->lock);
+	assert_spin_locked(&perm->lock);
+}
+
+static inline void ipc_lock_by_ptr(struct kern_ipc_perm *perm)
+{
+	rcu_read_lock();
+	ipc_lock_object(perm);
+}
+
+static inline void ipc_unlock(struct kern_ipc_perm *perm)
+{
+	ipc_unlock_object(perm);
+	rcu_read_unlock();
 }
 
 struct kern_ipc_perm *ipc_lock_check(struct ipc_ids *ids, int id);