Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> writes: > There's another point to consider. If you do accept my argument that > empty targets can be removed from visibility regardless of the host's > state, then this removal races with addition of a new child. Since > removal involves calling device_del(), it can't be protected by the > host lock. Instead we'd have to use a mutex to protect both target > addition and target removal. Careful. Holding a lock over device_del is an easy and hidden way to trigger a rare deadlocks. Eric -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html