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Date: Fri, 3 May 2019 12:33:53 +0100 From: Catalin Marinas <catalin.marinas@....com> To: Christoph Hellwig <hch@....de> Cc: Robin Murphy <robin.murphy@....com>, Joerg Roedel <joro@...tes.org>, Will Deacon <will.deacon@....com>, Tom Lendacky <thomas.lendacky@....com>, iommu@...ts.linux-foundation.org, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH 01/25] arm64/iommu: handle non-remapped addresses in ->mmap and ->get_sgtable On Tue, Apr 30, 2019 at 06:51:50AM -0400, Christoph Hellwig wrote: > DMA allocations that can't sleep may return non-remapped addresses, but > we do not properly handle them in the mmap and get_sgtable methods. > Resolve non-vmalloc addresses using virt_to_page to handle this corner > case. > > Signed-off-by: Christoph Hellwig <hch@....de> > Reviewed-by: Robin Murphy <robin.murphy@....com> Acked-by: Catalin Marinas <catalin.marinas@....com>
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