On Wednesday November 9, mingz@xxxxxxxxxxx wrote: > ic. thx! > > so it seems that we still have to use set_bit in a for loop to set > certain particular area, rite? Correct. NeilBrown - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html