From: Christoph Lameter <clameter@sgi.com>
To: 'David Gibson' <david@gibson.dropbear.id.au>
Cc: Andrew Morton <akpm@osdl.org>,
"Chen, Kenneth W" <kenneth.w.chen@intel.com>,
Hugh Dickins <hugh@veritas.com>,
bill.irwin@oracle.com, Adam Litke <agl@us.ibm.com>,
linux-mm@kvack.org
Subject: Re: [hugepage] Fix unmap_and_free_vma backout path
Date: Sun, 12 Nov 2006 21:29:48 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.64.0611122127080.2233@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <20061113051318.GD27042@localhost.localdomain>
On Mon, 13 Nov 2006, 'David Gibson' wrote:
> This may not be all we want. Even with this patch, performing such a
> failing map on to of an existing mapping will clobber (unmap) that
> pre-existing mapping. This is in contrast to the analogous situation
> with normal page mappings - mapping on top with a misaligned offset
> will fail early enough not to clobber the pre-existing mapping.
Then it is best to check the huge page alignment at the
same place as regular alignment.
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next prev parent reply other threads:[~2006-11-13 5:29 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-13 5:13 'David Gibson'
2006-11-13 5:29 ` Christoph Lameter [this message]
2006-11-13 5:57 ` 'David Gibson'
2006-11-13 6:03 ` Chen, Kenneth W
2006-11-13 6:22 ` 'David Gibson'
2006-11-13 7:35 ` Chen, Kenneth W
2006-11-13 17:00 ` Hugh Dickins
2006-11-13 17:38 ` Chen, Kenneth W
2006-11-13 20:34 ` Adam Litke
2006-11-13 20:41 ` Hugh Dickins
2006-11-13 22:07 ` Adam Litke
2006-11-13 23:53 ` 'David Gibson'
2006-11-14 23:48 ` Bill Irwin
2006-11-14 0:19 ` 'David Gibson'
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