From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933348AbdKBN6Q (ORCPT ); Thu, 2 Nov 2017 09:58:16 -0400 Received: from mail.kernel.org ([198.145.29.99]:43724 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933295AbdKBN6K (ORCPT ); Thu, 2 Nov 2017 09:58:10 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 83C5621923 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=chao@kernel.org Subject: Re: [f2fs-dev] [PATCH] f2fs: save a multiplication for last_nid calculation To: Fan Li , "'Jaegeuk Kim'" Cc: linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net References: <000101d35387$2dec7d40$89c577c0$@samsung.com> From: Chao Yu Message-ID: <61f32d13-3e39-afcb-752f-90740c765a65@kernel.org> Date: Thu, 2 Nov 2017 21:57:41 +0800 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 MIME-Version: 1.0 In-Reply-To: <000101d35387$2dec7d40$89c577c0$@samsung.com> Content-Type: text/plain; charset=windows-1252 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2017/11/2 11:02, Fan Li wrote: > Use a slightly easier way to calculate last_nid. > > Signed-off-by: Fan li Reviewed-by: Chao Yu Thanks, > --- > fs/f2fs/node.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c > index 7834097..55ab330 100644 > --- a/fs/f2fs/node.c > +++ b/fs/f2fs/node.c > @@ -2642,7 +2642,7 @@ static inline void load_free_nid_bitmap(struct f2fs_sb_info *sbi) > __set_bit_le(i, nm_i->nat_block_bitmap); > > nid = i * NAT_ENTRY_PER_BLOCK; > - last_nid = (i + 1) * NAT_ENTRY_PER_BLOCK; > + last_nid = nid + NAT_ENTRY_PER_BLOCK; > > spin_lock(&NM_I(sbi)->nid_list_lock); > for (; nid < last_nid; nid++) > -- > 2.7.4 >