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SubjectRe: [PATCH 4/9] x86, pkeys: override pkey when moving away from PROT_EXEC
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On 04/06/2018 05:09 PM, Ram Pai wrote:
>> - /*
>> - * Look for a protection-key-drive execute-only mapping
>> - * which is now being given permissions that are not
>> - * execute-only. Move it back to the default pkey.
>> - */
>> - if (vma_is_pkey_exec_only(vma) &&
>> - (prot & (PROT_READ|PROT_WRITE))) {
>> - return 0;
>> - }
>> +
> Dave,
> this can be simply:
>
> if ((vma_is_pkey_exec_only(vma) && (prot != PROT_EXEC))
> return ARCH_DEFAULT_PKEY;

Yes, but we're removing that code entirely. :)

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