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Re: [PATCH] x86: avoid unnecessary low zone allocation in AMD IOMMU's alloc_coherent
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From: FUJITA Tomonori
Subject:
Re: [PATCH] x86: avoid unnecessary low zone allocation in AMD IOMMU's alloc_coherent
Date: Thursday, September 11, 2008 - 6:36 am
On Thu, 11 Sep 2008 11:10:00 +0200 Joerg Roedel <joerg.roedel@amd.com> wrote:
quoted text
> On Wed, Sep 10, 2008 at 11:45:34PM +0900, FUJITA Tomonori wrote: > > On Wed, 10 Sep 2008 16:38:18 +0200 > > Joerg Roedel <joro@8bytes.org> wrote: > > > Ok, thats a valid point. I queue your patch with the AMD IOMMU updates > > > for 2.6.28. Thanks. > > > > Ingo already has queued it his tree, I think. > > I asked Ingo to remove it from his tree to avoid merge conflicts with > updates I am currently preparing. Here is the patch I queued into my > 2.6.28 update chain. > > Joerg > > === > commit 42a7fa8d8a7f1680cba76e4824dba30bfd1c9d70 > Author: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> > Date: Wed Sep 10 20:19:40 2008 +0900 > > x86: avoid unnecessary low zone allocation in AMD IOMMU's alloc_coherent > > x86's common alloc_coherent (dma_alloc_coherent in dma-mapping.h) sets > up the gfp flag according to the device dma_mask but AMD IOMMU doesn't > need it for devices that the IOMMU can do virtual mappings for. This > patch avoids unnecessary low zone allocation. > > Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> > Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> > > diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c > index ae38b24..09261dc 100644 > --- a/arch/x86/kernel/amd_iommu.c > +++ b/arch/x86/kernel/amd_iommu.c
I see, thanks. --
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Messages in current thread:
[PATCH] x86: avoid unnecessary low zone allocation in AMD ...
, FUJITA Tomonori
, (Wed Sep 10, 4:19 am)
Re: [PATCH] x86: avoid unnecessary low zone allocation in ...
, Ingo Molnar
, (Wed Sep 10, 4:57 am)
Re: [PATCH] x86: avoid unnecessary low zone allocation in ...
, Joerg Roedel
, (Wed Sep 10, 5:03 am)
Re: [PATCH] x86: avoid unnecessary low zone allocation in ...
, Ingo Molnar
, (Wed Sep 10, 5:18 am)
Re: [PATCH] x86: avoid unnecessary low zone allocation in ...
, FUJITA Tomonori
, (Wed Sep 10, 5:38 am)
Re: [PATCH] x86: avoid unnecessary low zone allocation in ...
, Joerg Roedel
, (Wed Sep 10, 5:48 am)
Re: [PATCH] x86: avoid unnecessary low zone allocation in ...
, FUJITA Tomonori
, (Wed Sep 10, 6:03 am)
Re: [PATCH] x86: avoid unnecessary low zone allocation in ...
, Joerg Roedel
, (Wed Sep 10, 6:10 am)
Re: [PATCH] x86: avoid unnecessary low zone allocation in ...
, FUJITA Tomonori
, (Wed Sep 10, 6:37 am)
Re: [PATCH] x86: avoid unnecessary low zone allocation in ...
, Joerg Roedel
, (Wed Sep 10, 6:53 am)
Re: [PATCH] x86: avoid unnecessary low zone allocation in ...
, FUJITA Tomonori
, (Wed Sep 10, 7:24 am)
Re: [PATCH] x86: avoid unnecessary low zone allocation in ...
, Joerg Roedel
, (Wed Sep 10, 7:38 am)
Re: [PATCH] x86: avoid unnecessary low zone allocation in ...
, FUJITA Tomonori
, (Wed Sep 10, 7:39 am)
Re: [PATCH] x86: avoid unnecessary low zone allocation in ...
, FUJITA Tomonori
, (Wed Sep 10, 7:45 am)
Re: [PATCH] x86: avoid unnecessary low zone allocation in ...
, Joerg Roedel
, (Wed Sep 10, 7:52 am)
Re: [PATCH] x86: avoid unnecessary low zone allocation in ...
, FUJITA Tomonori
, (Wed Sep 10, 8:09 am)
Re: [PATCH] x86: avoid unnecessary low zone allocation in ...
, Joerg Roedel
, (Wed Sep 10, 8:29 am)
Re: [PATCH] x86: avoid unnecessary low zone allocation in ...
, FUJITA Tomonori
, (Wed Sep 10, 9:29 am)
Re: [PATCH] x86: avoid unnecessary low zone allocation in ...
, Joerg Roedel
, (Wed Sep 10, 10:05 am)
Re: [PATCH] x86: avoid unnecessary low zone allocation in ...
, FUJITA Tomonori
, (Wed Sep 10, 10:15 am)
Re: [PATCH] x86: avoid unnecessary low zone allocation in ...
, Joerg Roedel
, (Wed Sep 10, 10:25 am)
Re: [PATCH] x86: avoid unnecessary low zone allocation in ...
, Joerg Roedel
, (Thu Sep 11, 2:10 am)
Re: [PATCH] x86: avoid unnecessary low zone allocation in ...
, FUJITA Tomonori
, (Thu Sep 11, 6:36 am)
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