Re: [Xen-devel] Re: [patch] ACM ops interface

[Chris Wright <chrisw@xxxxxxxxxxxx>]

* Reiner Sailer (sailer@xxxxxxxxxx) wrote:
> > Second, copy_to/from_user() has been replaced with copy_to/from_guest(),
> > since you can't copy to "userspace" on all architectures. (To complicate
> > things, there are a couple areas where x86 code actually wants to copy
> > to a virtual address, but copy_to/from_user() is only valid in
> > arch-specific code.)
> 
> Seems a sensible thing to do. This part of the patch makes much sense.

While you're at it, can you fix the things doing copy_to/from with locks
held?  Those could sleep.

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