On 2023/1/17 11:38, Tian, Kevin wrote:
From: Jason Gunthorpe<j...@nvidia.com> Sent: Saturday, January 7, 2023 12:43 AM@@ -2368,7 +2372,7 @@ static int iommu_domain_identity_map(struct dmar_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
