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=-8.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 D2093C2BC61 for ; Tue, 30 Oct 2018 12:28:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8F1DD2081B for ; Tue, 30 Oct 2018 12:28:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8F1DD2081B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727576AbeJ3VVt (ORCPT ); Tue, 30 Oct 2018 17:21:49 -0400 Received: from szxga07-in.huawei.com ([45.249.212.35]:44039 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726761AbeJ3VVs (ORCPT ); Tue, 30 Oct 2018 17:21:48 -0400 Received: from DGGEMS403-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id A4892BBE4DC84; Tue, 30 Oct 2018 20:28:29 +0800 (CST) Received: from huawei.com (10.113.189.234) by DGGEMS403-HUB.china.huawei.com (10.3.19.203) with Microsoft SMTP Server id 14.3.408.0; Tue, 30 Oct 2018 20:28:22 +0800 From: Yunlong Song To: , , , , CC: , , , , , Subject: [PATCH] f2fs: fix get_blocktype_secs bug when segs_per_sec is larger than 1 Date: Tue, 30 Oct 2018 20:28:15 +0800 Message-ID: <1540902495-60197-1-git-send-email-yunlong.song@huawei.com> X-Mailer: git-send-email 1.8.5.2 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.113.189.234] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org f2fs_need_SSR uses get_blocktype_secs to calculate needed dirty sections, however, for the case segs_per_sec > 1, when needed segs are smaller than segs_per_sec, it will just return 0, so fix it. Signed-off-by: Yunlong Song --- fs/f2fs/f2fs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 56204a8..d47417b 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1842,7 +1842,7 @@ static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >> sbi->log_blocks_per_seg; - return segs / sbi->segs_per_sec; + return (segs / sbi->segs_per_sec + sbi->segs_per_sec - 1) / sbi->segs_per_sec; } static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) -- 1.8.5.2