Justus Winter, le Thu 02 Jan 2014 20:02:44 +0100, a écrit :
> Previously, the bit field left 31 bits unused. By reducing the size
> of wire_count by one bit, the size of the whole struct is reduced by
> four bytes.
>
> * vm/vm_page.h (struct vm_page): Reduce the size of wire_count to 15
> bits.
Ack.
> ---
> vm/vm_page.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/vm/vm_page.h b/vm/vm_page.h
> index 339d355..4fe1b41 100644
> --- a/vm/vm_page.h
> +++ b/vm/vm_page.h
> @@ -84,7 +84,7 @@ struct vm_page {
> vm_object_t object; /* which object am I in (O,P) */
> vm_offset_t offset; /* offset into that object (O,P) */
>
> - unsigned int wire_count:16, /* how many wired down maps use me?
> + unsigned int wire_count:15, /* how many wired down maps use me?
> (O&P) */
> /* boolean_t */ inactive:1, /* page is in inactive list (P) */
> active:1, /* page is in active list (P) */
> --
> 1.8.5.2
>
--
Samuel
#ifndef I_WISH_WORLD_WERE_PERFECT
/* It is not :-( All the routers (except for Linux) return only
...
-+- linux/net/ipv4/ipip.c -+-
