Received: by 2002:a05:6a10:17d3:0:0:0:0 with SMTP id hz19csp221160pxb; Sat, 10 Apr 2021 00:26:11 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzwdxkTfYcB8z8WwlFxDLyA9UQ3sy/LzDUngWS5wjS4U3ws3xMx9VESTtGHXGU1cNcGdTa2 X-Received: by 2002:a17:90b:1d87:: with SMTP id pf7mr17616384pjb.208.1618039571103; Sat, 10 Apr 2021 00:26:11 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1618039571; cv=none; d=google.com; s=arc-20160816; b=YWtmhouuuDamjA6O0zKzTEQ1qpBLbeUOFtOavtdoNoW/JCAR4hXDrZjrFl/jjdiilx jCWgJD4h4xtenXfy3VVSyaTQoCfbSbM4GujaQq4KrjkC4LE/vMxzv42hbXWXgdv3RTkA 0rgbdBf8jKOKufzQeuBkiolkQX31mjGJRakmLd3tk9c9xrAsKwXwesBdlh5h3ljdyr8B nvuFQ6uTMslw3reSVOJqdVbvYAtWhXJ2siY+ETPA/OUGq/Q/6nyjK0wdWXaD2wkNFm6Q cGkzC2YdAZ1vSnpDAZjajjlE3vBimSkd0phcsVo7FdKOgV0zqhf0yohEphZFgIEP9mG9 c6hg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from; bh=XG63xzEE9HXfg5U6SEHCbF2IvV6rxuL6j0Ci5xi8PNo=; b=TERJUTeXkRijw0fz5XXLvi4ku1sPbdYt47eS/b2SEqZE+JQN8IcyNAZn1kl8/Q2pbA N//2QyrchkTYC6uLVYZeiTKstiyAWMVU6EZ8g0IQB016DlKXysOkIwog2LyvTxpiY5mM YUIaWaVd42Qo1LIukZ7jygtmSMoLRBMEwHz5NK0T9IIJIiVrEHiu2EO1lGlhN57QfWME iLdPI05ehAM50/p5f5aroEGOlRkRyOw5W52GB1E4hnIrwQUyg5WfiRyd6vJhcVyTCSi4 FMCmeg8tiZV/babkYGGy5r7b/GMjGbh3rM3b1uFrObajQEDOLj2WZ8DEAEBw1yjmaw5p hpYQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=huawei.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id z2si3199431pjt.64.2021.04.10.00.25.45; Sat, 10 Apr 2021 00:26:11 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=huawei.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234464AbhDJHZF (ORCPT + 99 others); Sat, 10 Apr 2021 03:25:05 -0400 Received: from szxga07-in.huawei.com ([45.249.212.35]:17303 "EHLO szxga07-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234388AbhDJHY7 (ORCPT ); Sat, 10 Apr 2021 03:24:59 -0400 Received: from DGGEMS410-HUB.china.huawei.com (unknown [172.30.72.60]) by szxga07-in.huawei.com (SkyGuard) with ESMTP id 4FHRKK0dClz9xDT; Sat, 10 Apr 2021 15:22:29 +0800 (CST) Received: from huawei.com (10.175.104.175) by DGGEMS410-HUB.china.huawei.com (10.3.19.210) with Microsoft SMTP Server id 14.3.498.0; Sat, 10 Apr 2021 15:24:35 +0800 From: Miaohe Lin To: , CC: , , , Subject: [PATCH v2 0/5] Cleanup and fixup for hugetlb Date: Sat, 10 Apr 2021 03:23:43 -0400 Message-ID: <20210410072348.20437-1-linmiaohe@huawei.com> X-Mailer: git-send-email 2.19.1 MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.175.104.175] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all, This series contains cleanups to remove redundant VM_BUG_ON() and simplify the return code. Also this handles the error case in hugetlb_fix_reserve_counts() correctly. More details can be found in the respective changelogs. Thanks! v1->v2: collect Reviewed-by tag remove the HPAGE_RESV_OWNER check per Mike add a comment to hugetlb_unreserve_pages per Mike expand warning message a bit for hugetlb_fix_reserve_counts Add a new patch to remove unused variable Many thanks for Mike's review and suggestion! Miaohe Lin (5): mm/hugeltb: remove redundant VM_BUG_ON() in region_add() mm/hugeltb: simplify the return code of __vma_reservation_common() mm/hugeltb: clarify (chg - freed) won't go negative in hugetlb_unreserve_pages() mm/hugeltb: handle the error case in hugetlb_fix_reserve_counts() mm/hugetlb: remove unused variable pseudo_vma in remove_inode_hugepages() fs/hugetlbfs/inode.c | 3 --- mm/hugetlb.c | 57 +++++++++++++++++++++++++------------------- 2 files changed, 33 insertions(+), 27 deletions(-) -- 2.19.1