Re: [PATCH v5 08/26] powerpc/book3s64/pkeys: Convert execute key support to static key

On 7/6/20 12:49 PM, Michael Ellerman wrote:

"Aneesh Kumar K.V" [off-list ref] writes:

quoted

Convert the bool to a static key like pkey_disabled.

I'm not convinced this is worth the added complexity of a static key.

It's not used in any performance critical paths, except for context
switch, but that's already guarded by:

	if (old_thread->iamr != new_thread->iamr)

Which should always be false on machines which don't have the execute
key enabled.

Ok will drop the patch.

-aneesh