From: Tang Junhui <tang.junhui@xxxxxxxxxx> Hello Mike, Coly I found this issue by code reading. It looks serious. May I am wrong. Please have a review. Thanks, Tang -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html