Re: [PATCH 7/8] iommu/intel: Support the gfp argument to the map_pages op
From: Baolu Lu <baolu.lu@linux.intel.com>
Date: 2023-01-17 08:37:07
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On 2023/1/17 11:38, Tian, Kevin wrote:
quoted
From: Jason Gunthorpe<jgg@nvidia.com> Sent: Saturday, January 7, 2023 12:43 AM@@ -2368,7 +2372,7 @@ static int iommu_domain_identity_map(structdmar_domain *domain, return __domain_mapping(domain, first_vpfn, first_vpfn, last_vpfn - first_vpfn + 1, - DMA_PTE_READ|DMA_PTE_WRITE); + DMA_PTE_READ|DMA_PTE_WRITE, GFP_KERNEL); }Baolu, can you help confirm whether switching from GFP_ATOMIC to GFP_KERNEL is OK in this path? it looks fine to me in a quick glance but want to be conservative here.
This is also good for me. The memory notifier callback runs in a process context and allowed to block. Best regards, baolu _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel