linux-kernel - Re: [PATCH] mm, thp: fix leaking mapped pte in __collapse_huge_page

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Message-ID: <20160907124106.5ucjmkuj6c3olpkf@redhat.com>
Date:   Wed, 7 Sep 2016 14:41:06 +0200
From:   Andrea Arcangeli <aarcange@...hat.com>
To:     Ebru Akagunduz <ebru.akagunduz@...il.com>
Cc:     linux-mm@...ck.org, riel@...hat.com, akpm@...ux-foundation.org,
        vbabka@...e.cz, mgorman@...hsingularity.net,
        kirill.shutemov@...ux.intel.com, hannes@...xchg.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm, thp: fix leaking mapped pte in
 __collapse_huge_page_swapin()

On Fri, Sep 02, 2016 at 03:44:36PM +0300, Ebru Akagunduz wrote:
> Currently, khugepaged does not let swapin, if there is no
> enough young pages in a THP. The problem is when a THP does
> not have enough young page, khugepaged leaks mapped ptes.
> 
> This patch prohibits leaking mapped ptes.
> 
> Signed-off-by: Ebru Akagunduz <ebru.akagunduz@...il.com>
> Suggested-by: Andrea Arcangeli <aarcange@...hat.com>
> ---
>  mm/khugepaged.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)

Reviewed-by: Andrea Arcangeli <aarcange@...hat.com>