Nick Piggin <[EMAIL PROTECTED]> wrote: > I think I should put wait_lock after wait_list, so as to get a better > packing on most 64-bit architectures.
It makes no difference. struct lockdep_map contains at least one pointer and so is going to be 8-byte aligned (assuming it's there at all). struct rw_semaphore contains at least one pointer/long, so it will be padded out to 8-byte size. If you want to make a difference, you'd need to add __attribute__((packed)) but you would need to be very careful with that. David - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/