From: Christoph Hellwig <hch@infradead.org>
To: Johannes Weiner <hannes@cmpxchg.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Magnus Damm <magnus.damm@gmail.com>,
linux-media@vger.kernel.org, Hans Verkuil <hverkuil@xs4all.nl>,
Paul Mundt <lethal@linux-sh.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [patch 3/3] mm: introduce follow_pfn()
Date: Mon, 4 May 2009 07:08:41 -0400 [thread overview]
Message-ID: <20090504110841.GA19646@infradead.org> (raw)
In-Reply-To: <1241430874-12667-3-git-send-email-hannes@cmpxchg.org>
On Mon, May 04, 2009 at 11:54:34AM +0200, Johannes Weiner wrote:
> Analoguous to follow_phys(), add a helper that looks up the PFN
> instead. It also only allows IO mappings or PFN mappings.
A kerneldoc describing what it does and the limitations would be
extremly helpful.
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next prev parent reply other threads:[~2009-05-04 11:08 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-28 9:01 [PATCH] videobuf-dma-contig: zero copy USERPTR support V2 Magnus Damm
2009-05-01 3:26 ` Magnus Damm
2009-05-01 18:14 ` Johannes Weiner
2009-05-04 9:54 ` [patch 1/3] mm: introduce follow_pte() Johannes Weiner
2009-05-05 19:24 ` Andrew Morton
2009-05-05 20:38 ` Johannes Weiner
2009-05-05 21:05 ` Andrew Morton
2009-05-05 21:21 ` Johannes Weiner
2009-05-08 8:51 ` Magnus Damm
2009-05-04 9:54 ` [patch 2/3] mm: use generic follow_pte() in follow_phys() Johannes Weiner
2009-05-04 10:08 ` Johannes Weiner
2009-05-04 9:54 ` [patch 3/3] mm: introduce follow_pfn() Johannes Weiner
2009-05-04 11:08 ` Christoph Hellwig [this message]
2009-05-04 13:13 ` [patch 3/3 v2] " Johannes Weiner
2009-05-04 14:31 ` Christoph Hellwig
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