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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id E5490C433F5 for ; Tue, 22 Mar 2022 21:42:34 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 451946B00BF; Tue, 22 Mar 2022 17:42:33 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 3B6F16B00C0; Tue, 22 Mar 2022 17:42:33 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 18FE86B00C1; Tue, 22 Mar 2022 17:42:33 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0072.hostedemail.com [216.40.44.72]) by kanga.kvack.org (Postfix) with ESMTP id 0491E6B00BF for ; Tue, 22 Mar 2022 17:42:33 -0400 (EDT) Received: from smtpin21.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id BB7B5182895A5 for ; Tue, 22 Mar 2022 21:42:32 +0000 (UTC) X-FDA: 79273346544.21.C2EC3E6 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by imf31.hostedemail.com (Postfix) with ESMTP id 5644020030 for ; Tue, 22 Mar 2022 21:42:32 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 38E88B81D9E; Tue, 22 Mar 2022 21:42:31 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CB061C340EC; Tue, 22 Mar 2022 21:42:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1647985350; bh=8I0AvYzXU0dWraExZB72rwlmoaAJKY60nseCbClVmMU=; h=Date:To:From:In-Reply-To:Subject:From; b=bCsjG3bA5HiIdFWZ7NSSoMUAqaRgkLAIvzq0GSl4nLoF6XiL/s0fI97/lW6BVdrEH etmsxpd5ZsrZszR2lFUg834NUz0xIccw8j/o+zJXA6eaQ1ivZc0RADxPSZsGo9xtoi jfV5ELHNNzrHwI0pRhty+NjrNTWeMEsqxRlATxLE= Date: Tue, 22 Mar 2022 14:42:30 -0700 To: linmiaohe@huawei.com,akpm@linux-foundation.org,patches@lists.linux.dev,linux-mm@kvack.org,mm-commits@vger.kernel.org,torvalds@linux-foundation.org,akpm@linux-foundation.org From: Andrew Morton In-Reply-To: <20220322143803.04a5e59a07e48284f196a2f9@linux-foundation.org> Subject: [patch 078/227] mm/memory.c: use helper function range_in_vma() Message-Id: <20220322214230.CB061C340EC@smtp.kernel.org> X-Stat-Signature: r9wstmiqk4fuwqdcr9zqwzef3pgx67fw X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 5644020030 Authentication-Results: imf31.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=bCsjG3bA; dmarc=none; spf=pass (imf31.hostedemail.com: domain of akpm@linux-foundation.org designates 145.40.68.75 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org X-Rspam-User: X-HE-Tag: 1647985352-222178 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: Miaohe Lin Subject: mm/memory.c: use helper function range_in_vma() Use helper function range_in_vma() to check if address, address + size are within the vma range. Minor readability improvement. Link: https://lkml.kernel.org/r/20220219021441.29173-1-linmiaohe@huawei.com Signed-off-by: Miaohe Lin Signed-off-by: Andrew Morton --- mm/memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/memory.c~mm-use-helper-function-range_in_vma +++ a/mm/memory.c @@ -1715,7 +1715,7 @@ static void zap_page_range_single(struct void zap_vma_ptes(struct vm_area_struct *vma, unsigned long address, unsigned long size) { - if (address < vma->vm_start || address + size > vma->vm_end || + if (!range_in_vma(vma, address, address + size) || !(vma->vm_flags & VM_PFNMAP)) return; _