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authorJoerg Roedel <joerg.roedel@amd.com>2008-09-11 10:59:15 +0200
committerIngo Molnar <mingo@elte.hu>2008-09-19 12:59:25 +0200
commitc97ac5359e6897abe22770740294dda185bac30d (patch)
tree30cbf63339f16f80f1910fa72f5bd333e744427c /arch/x86/kernel/amd_iommu.c
parentAMD IOMMU: avoid unnecessary low zone allocation in alloc_coherent (diff)
downloadlinux-dev-c97ac5359e6897abe22770740294dda185bac30d.tar.xz
linux-dev-c97ac5359e6897abe22770740294dda185bac30d.zip
AMD IOMMU: replace memset with __GFP_ZERO in alloc_coherent
Remove the memset and use __GFP_ZERO at allocation time instead. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/amd_iommu.c')
-rw-r--r--arch/x86/kernel/amd_iommu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index e4866660463e..f405a61f61fc 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -1176,11 +1176,11 @@ static void *alloc_coherent(struct device *dev, size_t size,
if (!get_device_resources(dev, &iommu, &domain, &devid))
flag &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
+ flag |= __GFP_ZERO;
virt_addr = (void *)__get_free_pages(flag, get_order(size));
if (!virt_addr)
return 0;
- memset(virt_addr, 0, size);
paddr = virt_to_phys(virt_addr);
if (!iommu || !domain) {