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SubjectRe: [PATCH] mm: hugetlb: undo change to page mapcount in fault handler
On Fri, 23 Dec 2011 21:00:41 +0800
Hillf Danton <dhillf@gmail.com> wrote:

> On Fri, Dec 23, 2011 at 12:36 AM, Michal Hocko <mhocko@suse.cz> wrote:
> >
> > The changelog is rather cryptic. What about something like:
> >
>
> It is included in the following version, thanks.
>
> ===CUT HERE===
> From: Hillf Danton <dhillf@gmail.com>
> Subject: [PATCH] mm: hugetlb: undo change to page mapcount in fault handler
>
> Page mapcount should be updated only if we are sure that the page ends
> up in the page table otherwise we would leak if we couldn't COW due to
> reservations or if idx is out of bounds.
>
> Signed-off-by: Hillf Danton <dhillf@gmail.com>
> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Reviewed-by: Michal Hocko <mhocko@suse.cz>

Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>



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