On Thu, Nov 17, 2016 at 03:33:21PM -0800, Andy Lutomirski wrote: > Huh, go figure. How about access_ok() instead? There's also > pagefault_disable() + copy_from_user().
Ah, you don't want to have another #PF during the first one.
How about copy_from_user_nmi()?
It already does __range_not_ok() which is basically access_ok() and
disables #PF around __copy_from_user_inatomic().
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Regards/Gruss,
Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
