Re: [PATCH 1/1] i386 Encapsulate copying of pgd entries

[Pavel Machek]

Hi!

> Since most hypervisors will likely provide a suspend/resume mechanism 
> that is external to the guest, most of this is a moot point anyways.  

Ok.

> But I wondered if you thought the pgd_clone() accessor would make this 
> cleaner or if it is just most confusing:
> 
> #ifdef CONFIG_SOFTWARE_SUSPEND
> /*
> * Swap suspend & friends need this for resume because things like the 
> intel-agp
> * driver might have split up a kernel 4MB mapping.
> */
> char __nosavedata swsusp_pg_dir[PAGE_SIZE]
>        __attribute__ ((aligned (PAGE_SIZE)));
> 
> static inline void save_pg_dir(void)
> {
>        memcpy(swsusp_pg_dir, swapper_pg_dir, PAGE_SIZE);  <--- could be 
> clone_pgd_range()
> }

Yep, clone_pgd_range would make sense here... 
								Pavel

-- 
if you have sharp zaurus hardware you don't need... you know my address
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/