From: David Rientjes <rientjes@google.com>
To: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Russell King - ARM Linux <linux@arm.linux.org.uk>,
Mel Gorman <mel@csn.ul.ie>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Rik van Riel <riel@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH] Make GFP_DMA allocations w/o ZONE_DMA emit a warning instead of failing
Date: Wed, 1 Jun 2011 11:42:09 -0700 (PDT) [thread overview]
Message-ID: <alpine.DEB.2.00.1106011140050.16198@chino.kir.corp.google.com> (raw)
In-Reply-To: <BANLkTinrviHh40fTfqyeB=SrcNS0yqZM0w@mail.gmail.com>
On Wed, 1 Jun 2011, Dmitry Eremin-Solenikov wrote:
> > So you want to continue to allow the page allocator to return pages from
> > anywhere, even when GFP_DMA is specified, just as though it was lowmem?
>
> Yes and no. I'm asking for the grace period for the drivers authors to be able
> to fix their code. After a grace period of one or two majors this permission
> should be removed and your original patch should be effective.
>
You don't need to wait for the code to be fixed, you just need to enable
CONFIG_ZONE_DMA. This is a configuration issue. If that GFP_DMA can be
removed later, that's great, but right now it requires it. Why can't you
enable the config option?
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next prev parent reply other threads:[~2011-06-01 18:42 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-01 10:04 Dmitry Eremin-Solenikov
2011-06-01 12:38 ` KOSAKI Motohiro
2011-06-01 15:07 ` Dmitry Eremin-Solenikov
2011-06-01 17:23 ` David Rientjes
2011-06-01 18:19 ` Russell King - ARM Linux
2011-06-01 18:55 ` Thomas Gleixner
2011-06-01 19:09 ` David Rientjes
2011-06-01 19:46 ` Thomas Gleixner
2011-06-10 7:38 ` KOSAKI Motohiro
2011-06-10 7:43 ` Andrew Morton
2011-06-10 7:52 ` KOSAKI Motohiro
2011-06-10 8:11 ` Dmitry Eremin-Solenikov
2011-06-10 9:12 ` Russell King - ARM Linux
2011-06-10 18:54 ` David Rientjes
2011-06-10 18:58 ` Russell King - ARM Linux
2011-06-10 22:01 ` David Rientjes
2011-06-10 22:07 ` Russell King - ARM Linux
2011-06-10 22:16 ` David Rientjes
2011-06-10 22:20 ` Russell King - ARM Linux
2011-06-10 22:30 ` David Rientjes
2011-06-11 9:45 ` Catalin Marinas
2011-06-11 17:18 ` Robert Hancock
2011-06-12 13:48 ` Russell King - ARM Linux
2011-06-01 18:30 ` Dmitry Eremin-Solenikov
2011-06-01 18:42 ` David Rientjes [this message]
2011-06-02 21:46 ` Pavel Machek
2011-06-12 11:07 ` Rafael J. Wysocki
2011-06-12 11:33 ` Cyril Hrubis
2011-06-12 11:39 ` Rafael J. Wysocki
2011-06-10 22:24 ` Linus Torvalds
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