Messages in this thread | | | Subject | Re: [PATCH v3] x86: treat pkey-0 special | From | Dave Hansen <> | Date | Thu, 15 Mar 2018 08:55:31 -0700 |
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On 03/15/2018 02:46 AM, Thomas Gleixner wrote: >> + if (!pkey || !mm_pkey_is_allocated(mm, pkey)) > Why this extra check? mm_pkey_is_allocated(mm, 0) should not return true > ever. If it does, then this wants to be fixed.
I was thinking that we _do_ actually want it to seem allocated. It just get "allocated" implicitly when an mm is created. I think that will simplify the code if we avoid treating it specially in as many places as possible.
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