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Date:   Fri, 12 May 2017 12:48:36 -0400
From:   Johannes Weiner <>
To:     Minchan Kim <>
Cc:     Huang Ying <>,
        Andrew Morton <>,,
Subject: Re: [PATCH 2/2] mm: swap: move anonymous THP split logic to vmscan

On Fri, May 12, 2017 at 11:21:24AM +0900, Minchan Kim wrote:
> The add_to_swap aims to allocate swap_space(ie, swap slot and
> swapcache) so if it fails due to lack of space in case of THP
> or something(hdd swap but tries THP swapout) *caller* rather
> than add_to_swap itself should split the THP page and retry it
> with base page which is more natural.
> Cc: Johannes Weiner <>
> Signed-off-by: Minchan Kim <>

Acked-by: Johannes Weiner <>

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