On Fri, 27 Oct 2006 21:33:08 -0700
Jeremy Fitzhardinge <[email protected]> wrote:
> Andrew Morton wrote:
> > It'd be better to use include/linux/uaccess.h:probe_kernel_address() for
> > this operation.
> >
> Ah, yes, that was the precedent I was thinking of,
We've done open-coded __get_user() in various places in the past. The difference with
probe_kernel_address() is that it doesn't get deadlocked on mmap_sem().
> but I guess it would
> be better to just use it directly. It's a relatively new interface,
> isn't it?
Yeah. New enough that nobody's tried using it on non-x86 ;) It needs
to do set_fs(KERNEL_DS).
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