From: Jeremy Fitzhardinge <jeremy@goop.org>
To: David Chinner <dgc@sgi.com>
Cc: "Andi Kleen" <andi@firstfloor.org>,
"dean gaudet" <dean@arctic.org>,
"Nick Piggin" <nickpiggin@yahoo.com.au>,
Xen-devel <xen-devel@lists.xensource.com>,
Morten@suse.de,
"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
Bøgeskov <xen-users@morten.bogeskov.dk>,
xfs@oss.sgi.com, xfs-masters@oss.sgi.com,
"Mark Williamson" <mark.williamson@cl.cam.ac.uk>
Subject: Re: [PATCH] Allow lazy unmapping by taking extra page references V2
Date: Tue, 23 Oct 2007 22:08:47 -0700 [thread overview]
Message-ID: <471ED35F.3020605@goop.org> (raw)
In-Reply-To: <20071024043619.GE66820511@sgi.com>
David Chinner wrote:
> Allow lazy unmapping of vmap()d regions be taking a reference
> on each page in the region being vmap()ed. The page references
> get released after the region is vunmap()ed, thereby ensuring
> we don't leave stray mappings on freed pages that could lead to
> problems pages being reallocated with incorrect mappings
> associated with them.
>
> Tested with XFS filesystems with 64k directory blocks with
> dirstress and XFSQA.
>
> Version 2:
> - drop the release function stuff and just call put_page()
> as it falls down to the same code in all calling cases.
>
This doesn't apply cleanly to the current git tree.
J
next prev parent reply other threads:[~2007-10-24 5:08 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-12 16:58 Interaction between Xen and XFS: stray RW mappings Jeremy Fitzhardinge
2007-10-12 17:08 ` Jeremy Fitzhardinge
2007-10-14 22:56 ` David Chinner
2007-10-14 23:12 ` Jeremy Fitzhardinge
2007-10-14 23:33 ` David Chinner
2007-10-15 4:15 ` Nick Piggin
2007-10-15 0:57 ` Jeremy Fitzhardinge
2007-10-15 7:26 ` Nick Piggin
2007-10-15 3:42 ` Jeremy Fitzhardinge
2007-10-15 4:11 ` David Chinner
2007-10-15 4:18 ` Jeremy Fitzhardinge
2007-10-15 4:25 ` David Chinner
2007-10-15 8:31 ` [xfs-masters] " Christoph Hellwig
2007-10-22 3:18 ` dean gaudet
2007-10-22 3:34 ` Jeremy Fitzhardinge
2007-10-22 4:28 ` dean gaudet
2007-10-22 4:39 ` Nick Piggin
2007-10-22 18:37 ` Jeremy Fitzhardinge
2007-10-22 18:32 ` Jeremy Fitzhardinge
2007-10-22 13:47 ` Andi Kleen
2007-10-22 18:40 ` Jeremy Fitzhardinge
2007-10-22 19:07 ` Andi Kleen
2007-10-22 19:11 ` Jeremy Fitzhardinge
2007-10-22 22:32 ` David Chinner
2007-10-22 23:35 ` Andi Kleen
2007-10-23 0:16 ` Zachary Amsden
2007-10-23 0:36 ` David Chinner
2007-10-23 7:04 ` [patch] " David Chinner
2007-10-23 9:30 ` Andi Kleen
2007-10-23 12:41 ` David Chinner
2007-10-23 14:33 ` Jeremy Fitzhardinge
2007-10-24 4:36 ` [PATCH] Allow lazy unmapping by taking extra page references V2 David Chinner
2007-10-24 5:08 ` Jeremy Fitzhardinge [this message]
2007-10-24 21:48 ` [PATCH] Allow lazy unmapping by taking extra page references V3 David Chinner
2007-10-24 22:46 ` Jeremy Fitzhardinge
2007-10-24 23:21 ` David Chinner
2007-10-23 9:28 ` Interaction between Xen and XFS: stray RW mappings Andi Kleen
2007-10-15 9:36 ` Andi Kleen
2007-10-15 14:56 ` Nick Piggin
2007-10-15 11:07 ` Andi Kleen
2007-10-15 11:28 ` Nick Piggin
2007-10-15 12:54 ` Andi Kleen
2007-10-21 12:17 ` Dave Airlie
2007-10-21 22:16 ` Benjamin Herrenschmidt
2007-10-22 9:49 ` Andi Kleen
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