From: Vlastimil Babka <vbabka@suse.cz>
To: Hui Zhu <zhuhui@xiaomi.com>, Minchan Kim <minchan@kernel.org>,
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
Cc: teawater@gmail.com
Subject: Re: [RFC v2 1/3] migrate: new struct migration and add it to struct page
Date: Thu, 15 Oct 2015 11:27:15 +0200 [thread overview]
Message-ID: <561F7173.3000900@suse.cz> (raw)
In-Reply-To: <1444900142-1996-2-git-send-email-zhuhui@xiaomi.com>
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.
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next prev parent reply other threads:[~2015-10-15 9:27 UTC|newest]
Thread overview: 7+ 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 [this message]
2015-10-15 9:53 ` Minchan Kim
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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