[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Xen-devel] Re: [RFC PATCH 32/35] Add Xen driver utility functions.

On Wednesday 22 March 2006 07:31, Chris Wright wrote:

> +     /*
> +      * Ensure that the page tables are mapped into the current mm. The
> +      * page-fault path will copy the page directory pointers from init_mm.
> +      */
> +     for (i = 0; i < area->size; i += PAGE_SIZE)
> +             (void)__get_user(c, (char __user *)area->addr + i);

It would be easier and simpler to just copy the pgd manually. 

Iirc Jan B. had a patch for a vmalloc_sync() function for this purpose, maybe
that one could be used.


Xen-devel mailing list



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.