From patchwork Tue Jun 29 02:39:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Morton X-Patchwork-Id: 12349127 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=ham 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 C4A9FC11F66 for ; Tue, 29 Jun 2021 02:39:55 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 972B1611AE for ; Tue, 29 Jun 2021 02:39:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 972B1611AE Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id ED6E78D00F3; Mon, 28 Jun 2021 22:39:54 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id EAD588D00F0; Mon, 28 Jun 2021 22:39:54 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id D9DBB8D00F3; Mon, 28 Jun 2021 22:39:54 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0179.hostedemail.com [216.40.44.179]) by kanga.kvack.org (Postfix) with ESMTP id B188E8D00F0 for ; Mon, 28 Jun 2021 22:39:54 -0400 (EDT) Received: from smtpin15.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id A3662181AEF1D for ; Tue, 29 Jun 2021 02:39:54 +0000 (UTC) X-FDA: 78305206308.15.191C10C Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf19.hostedemail.com (Postfix) with ESMTP id 66B5A9001E6C for ; Tue, 29 Jun 2021 02:39:54 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 7F5E761D0B; Tue, 29 Jun 2021 02:39:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1624934393; bh=/2IpH6hU5SmbCfx1oZ4BVWrZbh+GJR/oZWSw5LPceVU=; h=Date:From:To:Subject:In-Reply-To:From; b=dzcYUMh4e8u0yBVfRXgsO+FPeQk33MlV1gH1+mEi0jCcC3d3f9KDUn5hO4xl2dtgu AmuwqL6IGerpylAtgfffB8j74Q6xClKN/n83TTXHgnXmbn1aSTcUVYVjjXv+AcdF+7 Ivc4v5pXxM8gnG1XbRiIhvCaueoC1xEDE2/Kl340= Date: Mon, 28 Jun 2021 19:39:53 -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 126/192] mm/mempolicy: use vma_lookup() in __access_remote_vm() Message-ID: <20210629023953.KFc5yMQ5h%akpm@linux-foundation.org> In-Reply-To: <20210628193256.008961950a714730751c1423@linux-foundation.org> User-Agent: s-nail v14.8.16 Authentication-Results: imf19.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=dzcYUMh4; dmarc=none; spf=pass (imf19.hostedemail.com: domain of akpm@linux-foundation.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org X-Rspamd-Server: rspam02 X-Stat-Signature: rzs3yt7s48dppa87ayq1erzyj4yhxt8z X-Rspamd-Queue-Id: 66B5A9001E6C X-HE-Tag: 1624934394-161440 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Liam Howlett Subject: mm/mempolicy: use vma_lookup() in __access_remote_vm() vma_lookup() finds the vma of a specific address with a cleaner interface and is more readable. Link: https://lkml.kernel.org/r/20210521174745.2219620-23-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 --- mm/mempolicy.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/mempolicy.c~mm-mempolicy-use-vma_lookup-in-__access_remote_vm +++ a/mm/mempolicy.c @@ -975,7 +975,7 @@ static long do_get_mempolicy(int *policy * want to return MPOL_DEFAULT in this case. */ mmap_read_lock(mm); - vma = find_vma_intersection(mm, addr, addr+1); + vma = vma_lookup(mm, addr); if (!vma) { mmap_read_unlock(mm); return -EFAULT;