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-rw-r--r--kernel/locking/rwsem.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/kernel/locking/rwsem.c b/kernel/locking/rwsem.c
index 90a74ccd85a4..4d48b1c4870d 100644
--- a/kernel/locking/rwsem.c
+++ b/kernel/locking/rwsem.c
@@ -124,10 +124,8 @@ EXPORT_SYMBOL(up_write);
*/
void downgrade_write(struct rw_semaphore *sem)
{
- /*
- * lockdep: a downgraded write will live on as a write
- * dependency.
- */
+ lock_downgrade(&sem->dep_map, _RET_IP_);
+
rwsem_set_reader_owned(sem);
__downgrade_write(sem);
}