From: Jes Sorensen <jes@wildopensource.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: Jeff Garzik <jgarzik@pobox.com>, Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: returning non-ram via ->nopage, was Re: [patch] mspec driver for 2.6.12-rc2-mm3
Date: 27 Apr 2005 14:03:50 -0400 [thread overview]
Message-ID: <yq0hdhsrta1.fsf@jaguar.mkp.net> (raw)
In-Reply-To: <20050427155526.GA25921@infradead.org>
>>>>> "Christoph" == Christoph Hellwig <hch@infradead.org> writes:
Christoph> On Wed, Apr 27, 2005 at 11:53:15AM -0400, Jeff Garzik
Christoph> wrote:
>> I don't see anything wrong with a ->nopage approach.
>>
>> At Linus's suggestion, I used ->nopage in the implementation of
>> sound/oss/via82cxxx_audio.c.
Christoph> The difference is that you return kernel memory (actually
Christoph> pci_alloc_consistant memory that has it's own set of
Christoph> problems), while this is memory not in mem_map, so he
Christoph> allocates some regularly kernel memory too to have a struct
Christoph> page and just leaks it
Are you suggesting then that we change do_no_page to handle this as a
special return value then?
Jes
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next prev parent reply other threads:[~2005-04-27 18:03 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <16987.39773.267117.925489@jaguar.mkp.net>
[not found] ` <20050412032747.51c0c514.akpm@osdl.org>
[not found] ` <yq07jj8123j.fsf@jaguar.mkp.net>
[not found] ` <20050413204335.GA17012@infradead.org>
[not found] ` <yq08y3bys4e.fsf@jaguar.mkp.net>
[not found] ` <20050424101615.GA22393@infradead.org>
[not found] ` <yq03btftb9u.fsf@jaguar.mkp.net>
2005-04-25 14:47 ` Christoph Hellwig
2005-04-26 22:14 ` Jes Sorensen
2005-04-27 15:53 ` Jeff Garzik
2005-04-27 15:55 ` Christoph Hellwig
2005-04-27 18:03 ` Jes Sorensen [this message]
2005-04-27 18:55 ` Russell King
2005-05-03 20:40 ` William Lee Irwin III
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