| Subject | Re: [PATCHv2 12/14] x86/mm: Implement page_keyid() using page_ext | From | Dave Hansen <> | Date | Wed, 28 Mar 2018 09:59:23 -0700 |
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On 03/28/2018 09:55 AM, Kirill A. Shutemov wrote: > +static inline int page_keyid(struct page *page) > +{ > + if (!mktme_nr_keyids) > + return 0; > + > + return lookup_page_ext(page)->keyid; > +}
This doesn't look very optimized. Don't we normally try to use X86_FEATURE_* for these checks so that we get the runtime patching *and* compile-time optimizations?
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