From: William Lee Irwin III <wli@holomorphy.com>
To: "David S. Miller" <davem@davemloft.net>
Cc: hugh@veritas.com, akpm@osdl.org, nickpiggin@yahoo.com.au,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 04/11] unpaged: unifdefed PageCompound
Date: Sat, 19 Nov 2005 13:58:39 -0800 [thread overview]
Message-ID: <20051119215839.GP6916@holomorphy.com> (raw)
In-Reply-To: <20051119.134114.115024780.davem@davemloft.net>
> From: William Lee Irwin III <wli@holomorphy.com>
> Date: Sat, 19 Nov 2005 12:55:57 -0800
> > I usually end up deferring to Dave on the driver issues, but this time
> > I can independently agree in an informed manner.
On Sat, Nov 19, 2005 at 01:41:14PM -0800, David S. Miller wrote:
> What is it needed for in this case? We never try to use those
> pci_alloc_consistent() pages independantly, ie. freeing up
> individual pages from a non-zero order allocation.
> Just curious. :-)
I glossed over the pci_alloc_consistent() part of hugh's msg. I
recalled the sound driver from memory. I don't know whether
pci_alloc_consistent()'s sparc-specific usage includes a similar
behavior, but never saw it when I looked for allocators of higher-order
pages that free fragments of them at a time. The audit was far from
comprehensive, though.
I must defer once again. =)
-- wli
next prev parent reply other threads:[~2005-11-19 21:59 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-17 19:28 [PATCH 00/11] unpaged: PageReserved VM fixups Hugh Dickins
2005-11-17 19:29 ` [PATCH 01/11] unpaged: get_user_pages VM_RESERVED Hugh Dickins
2005-11-17 23:29 ` David S. Miller
2005-11-17 19:30 ` [PATCH 02/11] unpaged: private write VM_RESERVED Hugh Dickins
2005-11-17 19:41 ` Dave Jones
2005-11-17 20:46 ` Dominik Brodowski
2005-11-17 20:51 ` Dave Jones
2005-11-17 23:58 ` David S. Miller
2005-11-18 7:12 ` Dominik Brodowski
2005-11-18 7:59 ` David S. Miller
2005-11-17 20:59 ` Dominik Brodowski
2005-11-17 23:36 ` David S. Miller
2005-11-17 19:31 ` [PATCH 03/11] unpaged: sound nopage get_page Hugh Dickins
2005-11-17 23:41 ` David S. Miller
2005-11-17 19:32 ` [PATCH 04/11] unpaged: unifdefed PageCompound Hugh Dickins
2005-11-17 23:43 ` David S. Miller
2005-11-19 20:15 ` Hugh Dickins
2005-11-19 20:55 ` William Lee Irwin III
2005-11-19 21:41 ` David S. Miller
2005-11-19 21:58 ` William Lee Irwin III [this message]
2005-11-17 19:34 ` [PATCH 05/11] unpaged: VM_UNPAGED Hugh Dickins
2005-11-17 20:59 ` William Lee Irwin III
2005-11-17 23:46 ` David S. Miller
2005-11-17 19:36 ` [PATCH 06/11] unpaged: VM_NONLINEAR VM_RESERVED Hugh Dickins
2005-11-17 19:37 ` [PATCH 07/11] unpaged: COW on VM_UNPAGED Hugh Dickins
2005-11-17 23:52 ` David S. Miller
2005-11-18 5:46 ` Nick Piggin
2005-11-18 6:45 ` David S. Miller
2005-11-18 7:27 ` Hugh Dickins
2005-11-18 7:46 ` Andrew Morton
2005-11-18 8:04 ` David S. Miller
2005-11-18 8:12 ` Hugh Dickins
2005-11-18 8:02 ` Hugh Dickins
2005-11-18 8:08 ` David S. Miller
2005-11-18 8:13 ` Hugh Dickins
2005-11-18 8:36 ` David S. Miller
2005-11-18 9:33 ` Hugh Dickins
2005-11-18 21:08 ` Dave Jones
2005-11-18 19:12 ` Alan Cox
2005-11-17 19:38 ` [PATCH 08/11] unpaged: anon in VM_UNPAGED Hugh Dickins
2005-11-17 19:38 ` [PATCH 09/11] unpaged: ZERO_PAGE " Hugh Dickins
2005-11-17 21:25 ` Ingo Oeser
2005-11-18 19:58 ` Hugh Dickins
2005-11-17 19:39 ` [PATCH 10/11] unpaged: PG_reserved bad_page Hugh Dickins
2005-11-17 19:40 ` [PATCH 11/11] unpaged: copy_page_range vma Hugh Dickins
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