ctx->ctx_lock should be ctx->completion_lock.
Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 
        /*
         * Add a completion event to the ring buffer. Must be done holding
-        * ctx->ctx_lock to prevent other code from messing with the tail
+        * ctx->completion_lock to prevent other code from messing with the tail
         * pointer since we might be called from irq context.
         */
        spin_lock_irqsave(&ctx->completion_lock, flags);