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=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT 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 100EBC432C3 for ; Mon, 18 Nov 2019 03:29:14 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id D989420656 for ; Mon, 18 Nov 2019 03:29:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D989420656 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 746CD6B0003; Sun, 17 Nov 2019 22:29:13 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 6F7F06B0006; Sun, 17 Nov 2019 22:29:13 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 635366B0007; Sun, 17 Nov 2019 22:29:13 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0018.hostedemail.com [216.40.44.18]) by kanga.kvack.org (Postfix) with ESMTP id 4DC7E6B0003 for ; Sun, 17 Nov 2019 22:29:13 -0500 (EST) Received: from smtpin07.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with SMTP id EA26A121A for ; Mon, 18 Nov 2019 03:29:12 +0000 (UTC) X-FDA: 76167967344.07.note97_6d77bfcc85b44 X-HE-Tag: note97_6d77bfcc85b44 X-Filterd-Recvd-Size: 1766 Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by imf05.hostedemail.com (Postfix) with ESMTP for ; Mon, 18 Nov 2019 03:29:12 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 17 Nov 2019 19:29:10 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.68,318,1569308400"; d="scan'208";a="208717781" Received: from richard.sh.intel.com (HELO localhost) ([10.239.159.54]) by orsmga003.jf.intel.com with ESMTP; 17 Nov 2019 19:29:09 -0800 From: Wei Yang To: akpm@linux-foundation.org Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Wei Yang Subject: [PATCH] madvise: use PAGE_ALIGN[ED] for range checking Date: Mon, 18 Nov 2019 11:28:57 +0800 Message-Id: <20191118032857.22683-1-richardw.yang@linux.intel.com> X-Mailer: git-send-email 2.17.1 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: Improve readability, no functional change. Signed-off-by: Wei Yang --- mm/madvise.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/madvise.c b/mm/madvise.c index 2be9f3fdb05e..89913b545649 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -1051,9 +1051,9 @@ SYSCALL_DEFINE3(madvise, unsigned long, start, size_t, len_in, int, behavior) if (!madvise_behavior_valid(behavior)) return error; - if (start & ~PAGE_MASK) + if (!PAGE_ALIGNED(start)) return error; - len = (len_in + ~PAGE_MASK) & PAGE_MASK; + len = PAGE_ALIGN(len_in); /* Check to see whether len was rounded up from small -ve to zero */ if (len_in && !len) -- 2.17.1