On Tue, 2014-01-21 at 07:58 -0800, Frank Mayhar wrote: > Replacing? Or adding to? Is BYPASS always set when DYING is set? (My > guess is not but I haven't done an exhaustive analysis.) So the > relevant code snippet in __elv_next_request() would be: > if (unlikely(blk_queue_dying(q)) || > unlikely(blk_queue_bypass(q)) || > !q->elevator->type->ops.elevator_dispatch_fn(q, 0)) > return NULL;
FYI, I've made this change and tested it. I can't say for certain that it fixes the crash (since it's one of those races that's difficult to reproduce), but it does seem to pass all the tests I've thrown at it so far. -- Frank Mayhar 310-460-4042 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
