Messages in this thread | | | Date | Thu, 11 Sep 2008 22:36:59 +0900 | Subject | Re: [PATCH] x86: avoid unnecessary low zone allocation in AMD IOMMU's alloc_coherent | From | FUJITA Tomonori <> |
| |
On Thu, 11 Sep 2008 11:10:00 +0200 Joerg Roedel <joerg.roedel@amd.com> wrote:
> 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.
| |