Myklebust, Trond wrote: On Thu, 2012-03-29 at 08:55 +0900, Namjae Jeon wrote: > Hi. Trond. > > Normally goto statement is not recommended(pipeline and branch > prediction) it is only recommended as a last resort if there is no > method to escape this loop. ????????????? A goto is an unconditional branch; there is no further branch prediction involved once once the processor gets the value of 'err' in that switch statement correct. Exactly how would adding an extra set+test of exception.retry after the switch() help the branch predictor in this situation? Besides which I see little point in optimizing this error path. -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
