lkml.org 
[lkml]   [2017]   [Sep]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH v6 03/11] mm, x86: Add support for eXclusive Page Frame Ownership (XPFO)
From
Date
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

\
 
 \ /
  Last update: 2017-09-09 17:36    [W:0.842 / U:0.888 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site