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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, 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 E1858ECE58E for ; Thu, 17 Oct 2019 11:32:38 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id AE0922089C for ; Thu, 17 Oct 2019 11:32:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AE0922089C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=baidu.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 314BB8E0005; Thu, 17 Oct 2019 07:32:38 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 2C52C8E0003; Thu, 17 Oct 2019 07:32:38 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 1B7008E0005; Thu, 17 Oct 2019 07:32:38 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0034.hostedemail.com [216.40.44.34]) by kanga.kvack.org (Postfix) with ESMTP id E62B38E0003 for ; Thu, 17 Oct 2019 07:32:37 -0400 (EDT) Received: from smtpin20.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with SMTP id 8F4E4181AC1E9 for ; Thu, 17 Oct 2019 11:32:37 +0000 (UTC) X-FDA: 76053063954.20.bomb94_8ae8ea721323e X-HE-Tag: bomb94_8ae8ea721323e X-Filterd-Recvd-Size: 1606 Received: from tc-sys-mailedm04.tc.baidu.com (mx57.baidu.com [61.135.168.57]) by imf06.hostedemail.com (Postfix) with ESMTP for ; Thu, 17 Oct 2019 11:32:34 +0000 (UTC) Received: from localhost (cp01-cos-dev01.cp01.baidu.com [10.92.119.46]) by tc-sys-mailedm04.tc.baidu.com (Postfix) with ESMTP id F2163236C006; Thu, 17 Oct 2019 19:32:30 +0800 (CST) From: Li RongQing To: hughd@google.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH] mm: remove VM_ACCT(PAGE_SIZE) when charge and uncharge Date: Thu, 17 Oct 2019 19:32:31 +0800 Message-Id: <1571311951-8524-1-git-send-email-lirongqing@baidu.com> X-Mailer: git-send-email 1.7.1 X-Bogosity: Ham, tests=bogofilter, spamicity=0.028898, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: VM_ACCT(PAGE_SIZE) is one, and it is unnecessary to multiply by it Signed-off-by: Li RongQing --- mm/shmem.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/mm/shmem.c b/mm/shmem.c index cd570cc79c76..f01df46ef2ff 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -202,14 +202,13 @@ static inline int shmem_acct_block(unsigned long flags, long pages) if (!(flags & VM_NORESERVE)) return 0; - return security_vm_enough_memory_mm(current->mm, - pages * VM_ACCT(PAGE_SIZE)); + return security_vm_enough_memory_mm(current->mm, pages); } static inline void shmem_unacct_blocks(unsigned long flags, long pages) { if (flags & VM_NORESERVE) - vm_unacct_memory(pages * VM_ACCT(PAGE_SIZE)); + vm_unacct_memory(pages); } static inline bool shmem_inode_acct_block(struct inode *inode, long pages) -- 2.16.2