From: Benjamin LaHaise <bcrl@kvack.org>
To: Mel Gorman <mgorman@suse.de>
Cc: Tang Chen <tangchen@cn.fujitsu.com>,
Minchan Kim <minchan@kernel.org>,
Lin Feng <linfeng@cn.fujitsu.com>,
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: [PATCH V2 1/2] mm: hotplug: implement non-movable version of get_user_pages() called get_user_pages_non_movable()
Date: Mon, 13 May 2013 10:37:57 -0400 [thread overview]
Message-ID: <20130513143757.GP31899@kvack.org> (raw)
In-Reply-To: <20130513091902.GP11497@suse.de>
On Mon, May 13, 2013 at 10:19:02AM +0100, Mel Gorman wrote:
> On Mon, May 13, 2013 at 05:11:43PM +0800, Tang Chen wrote:
...
> > If so, I'm wondering where should we put this callback pointers ?
> > In struct page ?
> >
>
> No, I would expect the callbacks to be part the address space operations
> which can be found via page->mapping.
If someone adds those callbacks and provides a means for testing them,
it would be pretty trivial to change the aio code to migrate its pinned
pages on demand.
-ben
--
"Thought is the essence of where you are now."
--
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WARNING: multiple messages have this Message-ID (diff)
From: Benjamin LaHaise <bcrl@kvack.org>
To: Mel Gorman <mgorman@suse.de>
Cc: Tang Chen <tangchen@cn.fujitsu.com>,
Minchan Kim <minchan@kernel.org>,
Lin Feng <linfeng@cn.fujitsu.com>,
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: [PATCH V2 1/2] mm: hotplug: implement non-movable version of get_user_pages() called get_user_pages_non_movable()
Date: Mon, 13 May 2013 10:37:57 -0400 [thread overview]
Message-ID: <20130513143757.GP31899@kvack.org> (raw)
In-Reply-To: <20130513091902.GP11497@suse.de>
On Mon, May 13, 2013 at 10:19:02AM +0100, Mel Gorman wrote:
> On Mon, May 13, 2013 at 05:11:43PM +0800, Tang Chen wrote:
...
> > If so, I'm wondering where should we put this callback pointers ?
> > In struct page ?
> >
>
> No, I would expect the callbacks to be part the address space operations
> which can be found via page->mapping.
If someone adds those callbacks and provides a means for testing them,
it would be pretty trivial to change the aio code to migrate its pinned
pages on demand.
-ben
--
"Thought is the essence of where you are now."
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
WARNING: multiple messages have this Message-ID (diff)
From: Benjamin LaHaise <bcrl@kvack.org>
To: Mel Gorman <mgorman@suse.de>
Cc: Tang Chen <tangchen@cn.fujitsu.com>,
Minchan Kim <minchan@kernel.org>,
Lin Feng <linfeng@cn.fujitsu.com>,
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: [PATCH V2 1/2] mm: hotplug: implement non-movable version of get_user_pages() called get_user_pages_non_movable()
Date: Mon, 13 May 2013 10:37:57 -0400 [thread overview]
Message-ID: <20130513143757.GP31899@kvack.org> (raw)
In-Reply-To: <20130513091902.GP11497@suse.de>
On Mon, May 13, 2013 at 10:19:02AM +0100, Mel Gorman wrote:
> On Mon, May 13, 2013 at 05:11:43PM +0800, Tang Chen wrote:
...
> > If so, I'm wondering where should we put this callback pointers ?
> > In struct page ?
> >
>
> No, I would expect the callbacks to be part the address space operations
> which can be found via page->mapping.
If someone adds those callbacks and provides a means for testing them,
it would be pretty trivial to change the aio code to migrate its pinned
pages on demand.
-ben
--
"Thought is the essence of where you are now."
next prev parent reply other threads:[~2013-05-13 14:37 UTC|newest]
Thread overview: 104+ 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 ` Lin Feng
2013-02-05 9:21 ` 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 9:21 ` Lin Feng
2013-02-05 12:01 ` Mel Gorman
2013-02-05 12:01 ` Mel Gorman
2013-02-05 12:01 ` Mel Gorman
2013-02-06 0:42 ` Minchan Kim
2013-02-06 0:42 ` Minchan Kim
2013-02-06 0:52 ` Benjamin LaHaise
2013-02-06 0:52 ` Benjamin LaHaise
2013-02-06 0:52 ` Benjamin LaHaise
2013-02-06 9:56 ` Mel Gorman
2013-02-06 9:56 ` Mel Gorman
2013-02-08 2:32 ` Minchan Kim
2013-02-08 2:32 ` Minchan Kim
2013-02-08 2:32 ` Minchan Kim
2013-05-13 9:11 ` Tang Chen
2013-05-13 9:11 ` Tang Chen
2013-05-13 9:11 ` Tang Chen
2013-05-13 9:19 ` Mel Gorman
2013-05-13 9:19 ` Mel Gorman
2013-05-13 9:19 ` Mel Gorman
2013-05-13 14:37 ` Benjamin LaHaise [this message]
2013-05-13 14:37 ` Benjamin LaHaise
2013-05-13 14:37 ` Benjamin LaHaise
2013-05-13 14:54 ` Jeff Moyer
2013-05-13 14:54 ` Jeff Moyer
2013-05-13 14:54 ` Jeff Moyer
2013-05-13 15:01 ` Benjamin LaHaise
2013-05-13 15:01 ` Benjamin LaHaise
2013-05-13 15:01 ` Benjamin LaHaise
2013-05-14 1:24 ` Tang Chen
2013-05-14 1:24 ` Tang Chen
2013-05-14 13:58 ` Benjamin LaHaise
2013-05-14 13:58 ` Benjamin LaHaise
2013-05-14 13:58 ` Benjamin LaHaise
2013-05-14 15:16 ` chen tang
2013-05-15 2:09 ` Tang Chen
2013-05-15 2:09 ` Tang Chen
2013-05-15 7:21 ` Tang Chen
2013-05-15 7:21 ` Tang Chen
2013-05-15 7:21 ` Tang Chen
2013-05-14 3:55 ` Tang Chen
2013-05-14 3:55 ` Tang Chen
2013-05-14 3:55 ` Tang Chen
2013-05-15 13:24 ` Mel Gorman
2013-05-15 13:24 ` Mel Gorman
2013-05-16 5:54 ` Tang Chen
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 0:23 ` Benjamin LaHaise
2013-05-17 0:23 ` Benjamin LaHaise
2013-05-17 3:28 ` Tang Chen
2013-05-17 3:28 ` Tang Chen
2013-05-17 3:28 ` Tang Chen
2013-05-17 14:37 ` Benjamin LaHaise
2013-05-17 14:37 ` Benjamin LaHaise
2013-05-17 14:37 ` Benjamin LaHaise
2013-05-21 2:07 ` Tang Chen
2013-05-21 2:07 ` Tang Chen
2013-05-21 2:27 ` Benjamin LaHaise
2013-05-21 2:27 ` Benjamin LaHaise
2013-05-21 2:27 ` Benjamin LaHaise
2013-06-11 9:42 ` Tang Chen
2013-06-11 9:42 ` Tang Chen
2013-06-11 9:42 ` Tang Chen
2013-06-11 14:45 ` Benjamin LaHaise
2013-06-11 14:45 ` Benjamin LaHaise
2013-06-28 9:24 ` Gu Zheng
2013-06-28 9:24 ` Gu Zheng
2013-07-01 7:23 ` Gu Zheng
2013-07-01 7:23 ` Gu Zheng
2013-07-02 18:00 ` Benjamin LaHaise
2013-07-02 18:00 ` Benjamin LaHaise
2013-07-02 18:00 ` Benjamin LaHaise
2013-07-03 1:53 ` Gu Zheng
2013-07-03 1:53 ` Gu Zheng
2013-07-03 1:53 ` Gu Zheng
2013-07-04 6:51 ` Gu Zheng
2013-07-04 6:51 ` Gu Zheng
2013-07-04 6:51 ` Gu Zheng
2013-07-04 11:41 ` Benjamin LaHaise
2013-07-04 11:41 ` Benjamin LaHaise
2013-07-04 11:41 ` Benjamin LaHaise
2013-07-05 3:21 ` Gu Zheng
2013-07-05 3:21 ` Gu Zheng
2013-07-05 3:21 ` Gu Zheng
2013-05-17 18:17 ` Zach Brown
2013-05-17 18:17 ` Zach Brown
2013-05-17 18:30 ` Benjamin LaHaise
2013-05-17 18:30 ` Benjamin LaHaise
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 12:39 ` Lin Feng
2013-02-20 12:39 ` Lin Feng
2013-02-20 12:39 ` Lin Feng
2013-02-20 11:37 ` Wanpeng Li
2013-02-20 11:37 ` Wanpeng Li
2013-02-20 11:37 ` Wanpeng Li
2013-02-20 11:37 ` Wanpeng Li
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
2013-02-05 9:21 ` Lin Feng
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