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SubjectRe: [PATCH] mm: hugetlb: flush dcache before returning zeroed huge page to userspace
On Thu 16-08-12 17:09:54, Will Deacon wrote:
> On Wed, Aug 08, 2012 at 05:26:07PM +0100, Michal Hocko wrote:
> > I guess the cleanest way is to hook into dequeue_huge_page_node and add
> > something like arch_clear_hugepage_flags.
>
> I hooked into enqueue_huge_page instead, but how about something like this?:

Do you have any specific reason for that? enqueue_huge_page is called on
pages which potentially never get used so isn't that wasting a bit?
Not that it would be wrong I was just thinking why shouldn't we do it
when the page is actualy going to be used for sure.
--
Michal Hocko
SUSE Labs


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