From nobody Mon Apr 6 21:11:28 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 640D2C433FE for ; Sat, 8 Oct 2022 08:54:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229702AbiJHIy0 (ORCPT ); Sat, 8 Oct 2022 04:54:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54464 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229673AbiJHIyY (ORCPT ); Sat, 8 Oct 2022 04:54:24 -0400 Received: from ssh248.corpemail.net (ssh248.corpemail.net [210.51.61.248]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9DAFA537EA for ; Sat, 8 Oct 2022 01:54:19 -0700 (PDT) Received: from ([60.208.111.195]) by ssh248.corpemail.net ((D)) with ASMTP (SSL) id DKL00013; Sat, 08 Oct 2022 16:54:13 +0800 Received: from localhost.localdomain (10.200.104.82) by jtjnmail201611.home.langchao.com (10.100.2.11) with Microsoft SMTP Server id 15.1.2507.12; Sat, 8 Oct 2022 16:54:14 +0800 From: Deming Wang To: , , , , , CC: , , , Deming Wang Subject: [PATCH] drm/amdkfd: use vma_lookup() instead of find_vma() Date: Thu, 6 Oct 2022 22:26:51 -0400 Message-ID: <20221007022651.4816-1-wangdeming@inspur.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.200.104.82] tUid: 20221008165413ef7043eb8f6eb66da1d33c9230d6f04a X-Abuse-Reports-To: service@corp-email.com Abuse-Reports-To: service@corp-email.com X-Complaints-To: service@corp-email.com X-Report-Abuse-To: service@corp-email.com Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Using vma_lookup() verifies the start address is contained in the found vma. This results in easier to read the code. Signed-off-by: Deming Wang --- drivers/gpu/drm/amd/amdkfd/kfd_migrate.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c b/drivers/gpu/drm/amd= /amdkfd/kfd_migrate.c index 2797029bd500..3599cc931b0a 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c @@ -529,8 +529,8 @@ svm_migrate_ram_to_vram(struct svm_range *prange, uint3= 2_t best_loc, for (addr =3D start; addr < end;) { unsigned long next; =20 - vma =3D find_vma(mm, addr); - if (!vma || addr < vma->vm_start) + vma =3D vma_lookup(mm, addr); + if (!vma) break; =20 next =3D min(vma->vm_end, end); @@ -798,8 +798,8 @@ int svm_migrate_vram_to_ram(struct svm_range *prange, s= truct mm_struct *mm, for (addr =3D start; addr < end;) { unsigned long next; =20 - vma =3D find_vma(mm, addr); - if (!vma || addr < vma->vm_start) { + vma =3D vma_lookup(mm, addr) + if (!vma) { pr_debug("failed to find vma for prange %p\n", prange); r =3D -EFAULT; break; --=20 2.27.0