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From: Minchan Kim <minchan@kernel.org>
To: Vlastimil Babka <vbabka@suse.cz>
Cc: Hui Zhu <zhuhui@xiaomi.com>, Nitin Gupta <ngupta@vflare.org>,
	Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
	Mel Gorman <mgorman@suse.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Michal Hocko <mhocko@suse.com>,
	Konstantin Khlebnikov <khlebnikov@yandex-team.ru>,
	Andrea Arcangeli <aarcange@redhat.com>,
	Alexander Duyck <alexander.h.duyck@redhat.com>,
	Tejun Heo <tj@kernel.org>, Joonsoo Kim <iamjoonsoo.kim@lge.com>,
	Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
	Jennifer Herbert <jennifer.herbert@citrix.com>,
	Hugh Dickins <hughd@google.com>,
	Vladimir Davydov <vdavydov@parallels.com>,
	David Rientjes <rientjes@google.com>,
	Sasha Levin <sasha.levin@oracle.com>,
	"Steven Rostedt (Red Hat)" <rostedt@goodmis.org>,
	"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
	Wanpeng Li <wanpeng.li@hotmail.com>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Greg Thelen <gthelen@google.com>,
	Al Viro <viro@zeniv.linux.org.uk>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	teawater@gmail.com
Subject: Re: [RFC v2 1/3] migrate: new struct migration and add it to struct page
Date: Thu, 15 Oct 2015 18:53:28 +0900	[thread overview]
Message-ID: <20151015095328.GA7001@bgram> (raw)
In-Reply-To: <561F7173.3000900@suse.cz>

On Thu, Oct 15, 2015 at 11:27:15AM +0200, Vlastimil Babka wrote:
> On 10/15/2015 11:09 AM, Hui Zhu wrote:
> >I got that add function interfaces is really not a good idea.
> >So I add a new struct migration to put all migration interfaces and add
> >this struct to struct page as union of "mapping".
> 
> That's better, but not as flexible as the previously proposed
> approaches that Sergey pointed you at:
> 
>  http://lkml.iu.edu/hypermail/linux/kernel/1507.0/03233.html
>  http://lkml.iu.edu/hypermail/linux/kernel/1508.1/00696.html
> 
> There the operations are reachable via mapping, so we can support
> the special operations migration also when mapping is otherwise
> needed; your patch excludes mapping.
> 

Hello Hui,

FYI, I take over the work from Gioh and have a plan to improve the work.
So, Could you wait a bit? Of course, if you have better idea, feel free
to post it.

Thanks.

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WARNING: multiple messages have this Message-ID (diff)
From: Minchan Kim <minchan@kernel.org>
To: Vlastimil Babka <vbabka@suse.cz>
Cc: Hui Zhu <zhuhui@xiaomi.com>, Nitin Gupta <ngupta@vflare.org>,
	Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
	Mel Gorman <mgorman@suse.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Michal Hocko <mhocko@suse.com>,
	Konstantin Khlebnikov <khlebnikov@yandex-team.ru>,
	Andrea Arcangeli <aarcange@redhat.com>,
	Alexander Duyck <alexander.h.duyck@redhat.com>,
	Tejun Heo <tj@kernel.org>, Joonsoo Kim <iamjoonsoo.kim@lge.com>,
	Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
	Jennifer Herbert <jennifer.herbert@citrix.com>,
	Hugh Dickins <hughd@google.com>,
	Vladimir Davydov <vdavydov@parallels.com>,
	David Rientjes <rientjes@google.com>,
	Sasha Levin <sasha.levin@oracle.com>,
	"Steven Rostedt (Red Hat)" <rostedt@goodmis.org>,
	"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
	Wanpeng Li <wanpeng.li@hotmail.com>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Greg Thelen <gthelen@google.com>,
	Al Viro <viro@zeniv.linux.org.uk>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	teawater@gmail.com
Subject: Re: [RFC v2 1/3] migrate: new struct migration and add it to struct page
Date: Thu, 15 Oct 2015 18:53:28 +0900	[thread overview]
Message-ID: <20151015095328.GA7001@bgram> (raw)
In-Reply-To: <561F7173.3000900@suse.cz>

On Thu, Oct 15, 2015 at 11:27:15AM +0200, Vlastimil Babka wrote:
> On 10/15/2015 11:09 AM, Hui Zhu wrote:
> >I got that add function interfaces is really not a good idea.
> >So I add a new struct migration to put all migration interfaces and add
> >this struct to struct page as union of "mapping".
> 
> That's better, but not as flexible as the previously proposed
> approaches that Sergey pointed you at:
> 
>  http://lkml.iu.edu/hypermail/linux/kernel/1507.0/03233.html
>  http://lkml.iu.edu/hypermail/linux/kernel/1508.1/00696.html
> 
> There the operations are reachable via mapping, so we can support
> the special operations migration also when mapping is otherwise
> needed; your patch excludes mapping.
> 

Hello Hui,

FYI, I take over the work from Gioh and have a plan to improve the work.
So, Could you wait a bit? Of course, if you have better idea, feel free
to post it.

Thanks.

  reply	other threads:[~2015-10-15  9:53 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-15  9:08 [RFC v2 0/3] zsmalloc: make its pages can be migrated Hui Zhu
2015-10-15  9:09 ` [RFC v2 1/3] migrate: new struct migration and add it to struct page Hui Zhu
2015-10-15  9:27   ` Vlastimil Babka
2015-10-15  9:27     ` Vlastimil Babka
2015-10-15  9:53     ` Minchan Kim [this message]
2015-10-15  9:53       ` Minchan Kim
2015-10-19 12:08       ` Hui Zhu
2015-10-19 12:08         ` Hui Zhu
2015-10-15  9:09 ` [RFC v2 2/3] zsmalloc: mark its page "PageMigration" Hui Zhu
2015-10-15  9:09 ` [RFC v2 3/3] zram: make create "__GFP_MOVABLE" pool Hui Zhu

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