On Wed, 2018-12-05 at 22:17 +-0800, Weiping Zhang wrote: +AD4 +-Description: +AD4 +- io+AF8-timeout is a request+IBk-s timeouts at block layer in +AD4 +- milliseconds. When the underlying driver starts processing +AD4 +- a request, the generic block layer will start a timer, if +AD4 +- this request cannot be completed in io+AF8-timeout milliseconds, +AD4 +- a timeout event will occur. Sorry but I think this description is still somewhat confusing. How about changing that description into the following? io+AF8-timeout is the request timeout in milliseconds. If a request does not complete in this time then the block driver timeout handler is invoked. That timeout handler can decide to retry the request, to fail it or to start a device recovery strategy. Bart.
