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-rw-r--r--include/linux/blkdev.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 70ac2860a60..ef1afc178c0 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -355,8 +355,11 @@ struct request_queue
unsigned long queue_flags;
/*
- * protects queue structures from reentrancy
+ * protects queue structures from reentrancy. ->__queue_lock should
+ * _never_ be used directly, it is queue private. always use
+ * ->queue_lock.
*/
+ spinlock_t __queue_lock;
spinlock_t *queue_lock;
/*