From: Andi Kleen <andi@firstfloor.org>
To: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Andi Kleen <andi@firstfloor.org>,
Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mel@csn.ul.ie>, Wu Fengguang <fengguang.wu@intel.com>,
"Jun'ichi Nomura" <j-nomura@ce.jp.nec.com>,
linux-mm <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 3/7] hugetlb: add allocate function for hugepage migration
Date: Fri, 2 Jul 2010 11:08:54 +0200 [thread overview]
Message-ID: <20100702090854.GD12221@basil.fritz.box> (raw)
In-Reply-To: <1278049646-29769-4-git-send-email-n-horiguchi@ah.jp.nec.com>
On Fri, Jul 02, 2010 at 02:47:22PM +0900, Naoya Horiguchi wrote:
> We can't use existing hugepage allocation functions to allocate hugepage
> for page migration, because page migration can happen asynchronously with
> the running processes and page migration users should call the allocation
> function with physical addresses (not virtual addresses) as arguments.
I looked through this patch and didn't see anything bad. Some more
eyes familiar with hugepages would be good though.
Since there are now so many different allocation functions some
comments on when they should be used may be useful too
-Andi
WARNING: multiple messages have this Message-ID (diff)
From: Andi Kleen <andi@firstfloor.org>
To: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Andi Kleen <andi@firstfloor.org>,
Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mel@csn.ul.ie>, Wu Fengguang <fengguang.wu@intel.com>,
Jun'ichi Nomura <j-nomura@ce.jp.nec.com>,
linux-mm <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 3/7] hugetlb: add allocate function for hugepage migration
Date: Fri, 2 Jul 2010 11:08:54 +0200 [thread overview]
Message-ID: <20100702090854.GD12221@basil.fritz.box> (raw)
In-Reply-To: <1278049646-29769-4-git-send-email-n-horiguchi@ah.jp.nec.com>
On Fri, Jul 02, 2010 at 02:47:22PM +0900, Naoya Horiguchi wrote:
> We can't use existing hugepage allocation functions to allocate hugepage
> for page migration, because page migration can happen asynchronously with
> the running processes and page migration users should call the allocation
> function with physical addresses (not virtual addresses) as arguments.
I looked through this patch and didn't see anything bad. Some more
eyes familiar with hugepages would be good though.
Since there are now so many different allocation functions some
comments on when they should be used may be useful too
-Andi
--
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>
next prev parent reply other threads:[~2010-07-02 9:08 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-02 5:47 [PATCH 0/7] hugepage migration Naoya Horiguchi
2010-07-02 5:47 ` Naoya Horiguchi
2010-07-02 5:47 ` [PATCH 1/7] hugetlb: add missing unlock in avoidcopy path in hugetlb_cow() Naoya Horiguchi
2010-07-02 5:47 ` Naoya Horiguchi
2010-07-02 8:31 ` Andi Kleen
2010-07-02 8:31 ` Andi Kleen
2010-07-05 8:44 ` Naoya Horiguchi
2010-07-05 8:44 ` Naoya Horiguchi
2010-07-07 22:17 ` Andi Kleen
2010-07-07 22:17 ` Andi Kleen
2010-07-02 5:47 ` [PATCH 2/7] hugetlb, HWPOISON: move PG_HWPoison bit check Naoya Horiguchi
2010-07-02 5:47 ` Naoya Horiguchi
2010-07-02 5:47 ` [PATCH 3/7] hugetlb: add allocate function for hugepage migration Naoya Horiguchi
2010-07-02 5:47 ` Naoya Horiguchi
2010-07-02 9:08 ` Andi Kleen [this message]
2010-07-02 9:08 ` Andi Kleen
2010-07-05 8:46 ` Naoya Horiguchi
2010-07-05 8:46 ` Naoya Horiguchi
2010-07-05 9:28 ` Andi Kleen
2010-07-05 9:28 ` Andi Kleen
2010-07-02 5:47 ` [PATCH 4/7] hugetlb: add hugepage check in mem_cgroup_{register,end}_migration() Naoya Horiguchi
2010-07-02 5:47 ` Naoya Horiguchi
2010-07-02 9:11 ` Andi Kleen
2010-07-02 9:11 ` Andi Kleen
2010-07-02 5:47 ` [PATCH 5/7] hugetlb: pin oldpage in page migration Naoya Horiguchi
2010-07-02 5:47 ` Naoya Horiguchi
2010-07-05 9:45 ` Andi Kleen
2010-07-05 9:45 ` Andi Kleen
2010-07-06 15:54 ` Christoph Lameter
2010-07-06 15:54 ` Christoph Lameter
2010-07-07 6:40 ` Naoya Horiguchi
2010-07-07 6:40 ` Naoya Horiguchi
2010-07-02 5:47 ` [PATCH 6/7] hugetlb: hugepage migration core Naoya Horiguchi
2010-07-02 5:47 ` Naoya Horiguchi
2010-07-05 9:59 ` Andi Kleen
2010-07-05 9:59 ` Andi Kleen
2010-07-06 3:33 ` Naoya Horiguchi
2010-07-06 3:33 ` Naoya Horiguchi
2010-07-06 7:13 ` Andi Kleen
2010-07-06 7:13 ` Andi Kleen
2010-07-07 6:05 ` Naoya Horiguchi
2010-07-07 6:05 ` Naoya Horiguchi
2010-07-07 9:27 ` Andi Kleen
2010-07-07 9:27 ` Andi Kleen
2010-07-08 5:44 ` Naoya Horiguchi
2010-07-08 5:44 ` Naoya Horiguchi
2010-07-08 6:49 ` Andi Kleen
2010-07-08 6:49 ` Andi Kleen
2010-07-06 16:02 ` Christoph Lameter
2010-07-06 16:02 ` Christoph Lameter
2010-07-07 6:44 ` Naoya Horiguchi
2010-07-07 6:44 ` Naoya Horiguchi
2010-07-06 16:00 ` Christoph Lameter
2010-07-06 16:00 ` Christoph Lameter
2010-07-07 6:45 ` Naoya Horiguchi
2010-07-07 6:45 ` Naoya Horiguchi
2010-07-02 5:47 ` [PATCH 7/7] hugetlb, HWPOISON: soft offlining for hugepage Naoya Horiguchi
2010-07-02 5:47 ` Naoya Horiguchi
2010-07-05 10:28 ` Andi Kleen
2010-07-05 10:28 ` Andi Kleen
2010-07-02 8:30 ` [PATCH 0/7] hugepage migration Andi Kleen
2010-07-02 8:30 ` Andi Kleen
2010-07-05 8:44 ` Naoya Horiguchi
2010-07-05 8:44 ` Naoya Horiguchi
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20100702090854.GD12221@basil.fritz.box \
--to=andi@firstfloor.org \
--cc=akpm@linux-foundation.org \
--cc=fengguang.wu@intel.com \
--cc=j-nomura@ce.jp.nec.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mel@csn.ul.ie \
--cc=n-horiguchi@ah.jp.nec.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.