From: Dave Hansen <haveblue@us.ibm.com>
To: IWAMOTO Toshihiro <iwamoto@valinux.co.jp>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
lhms <lhms-devel@lists.sourceforge.net>,
linux-mm <linux-mm@kvack.org>
Subject: Re: [Lhms-devel] new memory hotremoval patch
Date: Wed, 30 Jun 2004 17:11:11 -0700 [thread overview]
Message-ID: <1088640671.5265.1017.camel@nighthawk> (raw)
In-Reply-To: <20040630111719.EBACF70A92@sv1.valinux.co.jp>
On Wed, 2004-06-30 at 04:17, IWAMOTO Toshihiro wrote:
> Due to struct page changes, page->mapping == NULL predicate can no
> longer be used for detecting cancellation of an anonymous page
> remapping operation. So the PG_again bit is being used again.
> It may be still possible to kill the PG_again bit, but the priority is
> rather low.
But, you reintroduced it everywhere, including file-backed pages, not
just for anonymous pages? Why was this necessary?
-- Dave
WARNING: multiple messages have this Message-ID (diff)
From: Dave Hansen <haveblue@us.ibm.com>
To: IWAMOTO Toshihiro <iwamoto@valinux.co.jp>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
lhms <lhms-devel@lists.sourceforge.net>,
linux-mm <linux-mm@kvack.org>
Subject: Re: [Lhms-devel] new memory hotremoval patch
Date: Wed, 30 Jun 2004 17:11:11 -0700 [thread overview]
Message-ID: <1088640671.5265.1017.camel@nighthawk> (raw)
In-Reply-To: <20040630111719.EBACF70A92@sv1.valinux.co.jp>
On Wed, 2004-06-30 at 04:17, IWAMOTO Toshihiro wrote:
> Due to struct page changes, page->mapping == NULL predicate can no
> longer be used for detecting cancellation of an anonymous page
> remapping operation. So the PG_again bit is being used again.
> It may be still possible to kill the PG_again bit, but the priority is
> rather low.
But, you reintroduced it everywhere, including file-backed pages, not
just for anonymous pages? Why was this necessary?
-- Dave
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next prev parent reply other threads:[~2004-07-01 0:11 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-30 11:17 new memory hotremoval patch IWAMOTO Toshihiro
2004-06-30 11:17 ` IWAMOTO Toshihiro
2004-06-30 11:32 ` Arjan van de Ven
2004-06-30 14:33 ` [Lhms-devel] " Hirokazu Takahashi
2004-06-30 14:33 ` Hirokazu Takahashi
2004-06-30 23:31 ` [Lhms-devel] " Dave Hansen
2004-06-30 23:31 ` Dave Hansen
2004-07-01 2:10 ` IWAMOTO Toshihiro
2004-07-01 2:10 ` IWAMOTO Toshihiro
2004-07-01 0:11 ` Dave Hansen [this message]
2004-07-01 0:11 ` Dave Hansen
2004-07-01 3:05 ` IWAMOTO Toshihiro
2004-07-01 3:05 ` IWAMOTO Toshihiro
2004-07-01 5:28 ` Dave Hansen
2004-07-01 5:28 ` Dave Hansen
2004-07-01 5:58 ` IWAMOTO Toshihiro
2004-07-01 5:58 ` IWAMOTO Toshihiro
2004-07-01 6:15 ` Dave Hansen
2004-07-01 6:15 ` Dave Hansen
2004-07-01 7:16 ` [patch] new memory hotremoval patch for hugetlbpages Hirokazu Takahashi
2004-07-01 7:16 ` Hirokazu Takahashi
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