From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 86E0BC11F65 for ; Tue, 29 Jun 2021 02:39:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 70C8961166 for ; Tue, 29 Jun 2021 02:39:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231219AbhF2Clt (ORCPT ); Mon, 28 Jun 2021 22:41:49 -0400 Received: from mail.kernel.org ([198.145.29.99]:34132 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231753AbhF2Cls (ORCPT ); Mon, 28 Jun 2021 22:41:48 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id A840C61D0B; Tue, 29 Jun 2021 02:39:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1624934361; bh=Nae39WXZ+EEI1jygsjTuK+eLFeoTFqO+MVsWkrBJt3A=; h=Date:From:To:Subject:In-Reply-To:From; b=Wrmu5lWAg+3fbr2r5RtFhHEtKi5SD/xgPIHFPrGeG9d3s217QZSVLKksUD31W/zRY U7HggFzIx2qOeksgH2lUNDyc0j4ZCQE1f5a/aKmypL9bqULxK1uwTVipahAO81jDdw iJdk1Ue9WeTTvOG1WfaJLirJnsm9QWbvL1ZkUf2M= Date: Mon, 28 Jun 2021 19:39:20 -0700 From: Andrew Morton To: akpm@linux-foundation.org, david@redhat.com, dbueso@suse.de, geert@linux-m68k.org, ldufour@linux.ibm.com, Liam.Howlett@Oracle.com, linux-mm@kvack.org, mm-commits@vger.kernel.org, torvalds@linux-foundation.org Subject: [patch 115/192] vfio: use vma_lookup() instead of find_vma_intersection() Message-ID: <20210629023920.WXSWCSVZo%akpm@linux-foundation.org> In-Reply-To: <20210628193256.008961950a714730751c1423@linux-foundation.org> User-Agent: s-nail v14.8.16 Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org From: Liam Howlett Subject: vfio: use vma_lookup() instead of find_vma_intersection() vma_lookup() finds the vma of a specific address with a cleaner interface and is more readable. Link: https://lkml.kernel.org/r/20210521174745.2219620-12-Liam.Howlett@Oracle.com Signed-off-by: Liam R. Howlett Reviewed-by: Laurent Dufour Acked-by: David Hildenbrand Acked-by: Davidlohr Bueso Cc: Geert Uytterhoeven Signed-off-by: Andrew Morton --- drivers/vfio/vfio_iommu_type1.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/vfio/vfio_iommu_type1.c~vfio-use-vma_lookup-instead-of-find_vma_intersection +++ a/drivers/vfio/vfio_iommu_type1.c @@ -567,7 +567,7 @@ static int vaddr_get_pfns(struct mm_stru vaddr = untagged_addr(vaddr); retry: - vma = find_vma_intersection(mm, vaddr, vaddr + 1); + vma = vma_lookup(mm, vaddr); if (vma && vma->vm_flags & VM_PFNMAP) { ret = follow_fault_pfn(vma, mm, vaddr, pfn, prot & IOMMU_WRITE); _