Re: [PATCH 3/3] x86/iommu: use __GFP_ZERO instead of memset forGART

From: Ingo Molnar
Date: Thu Sep 25 2008 - 06:20:44 EST



* Joerg Roedel <joerg.roedel@xxxxxxx> wrote:

> #ifdef CONFIG_IOMMU_LEAK
> if (leak_trace) {
> - iommu_leak_tab = (void *)__get_free_pages(GFP_KERNEL,
> + iommu_leak_tab = (void *)__get_free_pages(GFP_KERNEL|__GFP_ZERO,
> get_order(iommu_pages*sizeof(void *)));
> - if (iommu_leak_tab)
> - memset(iommu_leak_tab, 0, iommu_pages * 8);
> else
> printk(KERN_DEBUG
> "PCI-DMA: Cannot allocate leak trace area\n");

hm, that looks broken.

Ingo
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