| Subject | Re: [PATCH v6 03/11] mm, x86: Add support for eXclusive Page Frame Ownership (XPFO) | From | Laura Abbott <> | Date | Sat, 9 Sep 2017 08:35:17 -0700 |
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On 09/07/2017 10:36 AM, Tycho Andersen wrote: > +static inline struct xpfo *lookup_xpfo(struct page *page) > +{ > + struct page_ext *page_ext = lookup_page_ext(page); > + > + if (unlikely(!page_ext)) { > + WARN(1, "xpfo: failed to get page ext"); > + return NULL; > + } > + > + return (void *)page_ext + page_xpfo_ops.offset; > +} > +
Just drop the WARN. On my arm64 UEFI machine this spews warnings under most normal operation. This should be normal for some situations but I haven't had the time to dig into why this is so pronounced on arm64.
Thanks, Laura
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