Re: [RFC][PATCH] x86: Verify access_ok() context

[Linus Torvalds]

On Tue, Nov 22, 2016 at 11:37 AM, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
>
> CONFIG_DEBUG_VM seems somehow inappropriate.

The usual might_fault() logic? That uses

    defined(CONFIG_PROVE_LOCKING) || defined(CONFIG_DEBUG_ATOMIC_SLEEP)

(and "might_sleep()" uses just CONFIG_DEBUG_ATOMIC_SLEEP, maybe that's fine).

               Linus