From: Benjamin LaHaise <bcrl@kvack.org>
To: Gu Zheng <guz.fnst@cn.fujitsu.com>
Cc: Tang Chen <tangchen@cn.fujitsu.com>, Mel Gorman <mgorman@suse.de>,
Minchan Kim <minchan@kernel.org>,
akpm@linux-foundation.org, viro@zeniv.linux.org.uk,
khlebnikov@openvz.org, walken@google.com,
kamezawa.hiroyu@jp.fujitsu.com, riel@redhat.com,
rientjes@google.com, isimatu.yasuaki@jp.fujitsu.com,
wency@cn.fujitsu.com, laijs@cn.fujitsu.com, jiang.liu@huawei.com,
zab@redhat.com, jmoyer@redhat.com, linux-mm@kvack.org,
linux-aio@kvack.org, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org,
Marek Szyprowski <m.szyprowski@samsung.com>
Subject: Re: [WiP]: aio support for migrating pages (Re: [PATCH V2 1/2] mm: hotplug: implement non-movable version of get_user_pages() called get_user_pages_non_movable())
Date: Tue, 2 Jul 2013 14:00:08 -0400 [thread overview]
Message-ID: <20130702180008.GQ16399@kvack.org> (raw)
In-Reply-To: <51D12E7B.6080301@cn.fujitsu.com>
On Mon, Jul 01, 2013 at 03:23:39PM +0800, Gu Zheng wrote:
> Hi Ben,
> Are you still working on this patch?
> As you know, using the current anon inode will lead to more than one instance of
> aio can not work. Have you found a way to fix this issue? Or can we use some
> other ones to replace the anon inode?
This patch hasn't been a high priority for me. I would really appreciate
it if someone could confirm that this patch does indeed fix the hotplug
page migration issue by testing it in a system that hits the bug. Removing
the anon_inode bits isn't too much work, but I'd just like to have some
confirmation that this fix is considered to be "good enough" for the
problem at hand before spending any further time on it. There was talk of
using another approach, but it's not clear if there was any progress.
-ben
--
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next prev parent reply other threads:[~2013-07-02 18:00 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-05 9:21 [PATCH V2 0/2] mm: hotplug: implement non-movable version of get_user_pages() to kill long-time pin pages Lin Feng
2013-02-05 9:21 ` [PATCH V2 1/2] mm: hotplug: implement non-movable version of get_user_pages() called get_user_pages_non_movable() Lin Feng
2013-02-05 12:01 ` Mel Gorman
2013-02-06 0:42 ` Minchan Kim
2013-02-06 0:52 ` Benjamin LaHaise
2013-02-06 9:56 ` Mel Gorman
2013-02-08 2:32 ` Minchan Kim
2013-05-13 9:11 ` Tang Chen
2013-05-13 9:19 ` Mel Gorman
2013-05-13 14:37 ` Benjamin LaHaise
2013-05-13 14:54 ` Jeff Moyer
2013-05-13 15:01 ` Benjamin LaHaise
2013-05-14 1:24 ` Tang Chen
2013-05-14 13:58 ` Benjamin LaHaise
2013-05-14 15:16 ` chen tang
2013-05-15 2:09 ` Tang Chen
2013-05-15 7:21 ` Tang Chen
2013-05-14 3:55 ` Tang Chen
2013-05-15 13:24 ` Mel Gorman
2013-05-16 5:54 ` Tang Chen
2013-05-17 0:23 ` [WiP]: aio support for migrating pages (Re: [PATCH V2 1/2] mm: hotplug: implement non-movable version of get_user_pages() called get_user_pages_non_movable()) Benjamin LaHaise
2013-05-17 3:28 ` Tang Chen
2013-05-17 14:37 ` Benjamin LaHaise
2013-05-21 2:07 ` Tang Chen
2013-05-21 2:27 ` Benjamin LaHaise
2013-06-11 9:42 ` Tang Chen
2013-06-11 14:45 ` Benjamin LaHaise
2013-06-28 9:24 ` Gu Zheng
2013-07-01 7:23 ` Gu Zheng
2013-07-02 18:00 ` Benjamin LaHaise [this message]
2013-07-03 1:53 ` Gu Zheng
2013-07-04 6:51 ` Gu Zheng
2013-07-04 11:41 ` Benjamin LaHaise
2013-07-05 3:21 ` Gu Zheng
2013-05-17 18:17 ` Zach Brown
2013-05-17 18:30 ` Benjamin LaHaise
2013-02-20 11:37 ` [PATCH V2 1/2] mm: hotplug: implement non-movable version of get_user_pages() called get_user_pages_non_movable() Wanpeng Li
2013-02-20 11:37 ` Wanpeng Li
[not found] ` <20130220113757.GA10124@hacker.(null)>
2013-02-20 12:39 ` Lin Feng
2013-02-05 9:21 ` [PATCH V2 2/2] fs/aio.c: use get_user_pages_non_movable() to pin ring pages when support memory hotremove Lin Feng
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