linux-kernel - Re: [RFC 0/3] zsmalloc: make its pages movable

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Message-ID: <20151008070320.GA447@swordfish>
Date:	Thu, 8 Oct 2015 16:03:20 +0900
From:	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
To:	Hui Zhu <zhuhui@...omi.com>
Cc:	Minchan Kim <minchan@...nel.org>, Nitin Gupta <ngupta@...are.org>,
	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	Mel Gorman <mgorman@...e.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Michal Hocko <mhocko@...e.com>,
	Konstantin Khlebnikov <khlebnikov@...dex-team.ru>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Alexander Duyck <alexander.h.duyck@...hat.com>,
	Tejun Heo <tj@...nel.org>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	Naoya Horiguchi <n-horiguchi@...jp.nec.com>,
	Jennifer Herbert <jennifer.herbert@...rix.com>,
	Hugh Dickins <hughd@...gle.com>,
	Vladimir Davydov <vdavydov@...allels.com>,
	Vlastimil Babka <vbabka@...e.cz>,
	David Rientjes <rientjes@...gle.com>,
	Sasha Levin <sasha.levin@...cle.com>,
	"Steven Rostedt (Red Hat)" <rostedt@...dmis.org>,
	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>,
	Wanpeng Li <wanpeng.li@...mail.com>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Greg Thelen <gthelen@...gle.com>,
	Al Viro <viro@...iv.linux.org.uk>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	teawater@...il.com,
	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Subject: Re: [RFC 0/3] zsmalloc: make its pages movable

On (10/08/15 14:35), Hui Zhu wrote:
> 
> As the discussion in the list, the zsmalloc introduce some problems
> around pages because its pages are unmovable.
> 
> These patches introduced page move function to zsmalloc.  And they also
> add interface to struct page.
> 

Hi,

have you seen
 http://lkml.iu.edu/hypermail/linux/kernel/1507.0/03233.html
 http://lkml.iu.edu/hypermail/linux/kernel/1508.1/00696.html

?


	-ss

> Hui Zhu (3):
> page: add new flags "PG_movable" and add interfaces to control these pages
> zsmalloc: mark its page "PG_movable"
> zram: make create "__GFP_MOVABLE" pool
>  drivers/block/zram/zram_drv.c |    4 
>  include/linux/mm_types.h      |   11 +
>  include/linux/page-flags.h    |    3 
>  mm/compaction.c               |    6 
>  mm/debug.c                    |    1 
>  mm/migrate.c                  |   17 +
>  mm/vmscan.c                   |    2 
>  mm/zsmalloc.c                 |  409 ++++++++++++++++++++++++++++++++++++++++--
>  8 files changed, 428 insertions(+), 25 deletions(-)
> 
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