From patchwork Fri Aug 21 21:41:20 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Morton X-Patchwork-Id: 7054051 Return-Path: X-Original-To: patchwork-ocfs2-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id A2DC3C05AC for ; Fri, 21 Aug 2015 21:41:42 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C9EAF203B5 for ; Fri, 21 Aug 2015 21:41:41 +0000 (UTC) Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D3237203B1 for ; Fri, 21 Aug 2015 21:41:40 +0000 (UTC) Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id t7LLfQdM032504 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 21 Aug 2015 21:41:26 GMT Received: from oss.oracle.com (oss-old-reserved.oracle.com [137.254.22.2]) by userv0022.oracle.com (8.13.8/8.13.8) with ESMTP id t7LLfQWq010986 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 21 Aug 2015 21:41:26 GMT Received: from localhost ([127.0.0.1] helo=lb-oss.oracle.com) by oss.oracle.com with esmtp (Exim 4.63) (envelope-from ) id 1ZSu3x-0002uv-VQ; Fri, 21 Aug 2015 14:41:25 -0700 Received: from userv0022.oracle.com ([156.151.31.74]) by oss.oracle.com with esmtp (Exim 4.63) (envelope-from ) id 1ZSu3v-0002u5-2g for ocfs2-devel@oss.oracle.com; Fri, 21 Aug 2015 14:41:23 -0700 Received: from aserp1030.oracle.com (aserp1030.oracle.com [141.146.126.68]) by userv0022.oracle.com (8.13.8/8.13.8) with ESMTP id t7LLfMla010854 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Fri, 21 Aug 2015 21:41:22 GMT Received: from userp2030.oracle.com (userp2030.oracle.com [156.151.31.89]) by aserp1030.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id t7LLfLQY029237 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 21 Aug 2015 21:41:22 GMT Received: from pps.filterd (userp2030.oracle.com [127.0.0.1]) by userp2030.oracle.com (8.15.0.59/8.15.0.59) with SMTP id t7LLd9AM031539 for ; Fri, 21 Aug 2015 21:41:21 GMT Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) by userp2030.oracle.com with ESMTP id 1wbka4fkqu-1 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Fri, 21 Aug 2015 21:41:21 +0000 Received: from akpm3.mtv.corp.google.com (unknown [216.239.45.65]) by mail.linuxfoundation.org (Postfix) with ESMTPSA id 6E1903EE; Fri, 21 Aug 2015 21:41:20 +0000 (UTC) Date: Fri, 21 Aug 2015 14:41:20 -0700 From: akpm@linux-foundation.org To: ocfs2-devel@oss.oracle.com, akpm@linux-foundation.org, xuejiufei@huawei.com, jlbec@evilplan.org, mfasheh@suse.com Message-ID: <55d79b00.Fdxqjm8MnWKomDdt%akpm@linux-foundation.org> User-Agent: Heirloom mailx 12.5 6/20/10 MIME-Version: 1.0 X-ServerName: mail.linuxfoundation.org X-Proofpoint-Virus-Version: vendor=nai engine=5700 definitions=7900 signatures=670626 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1507310000 definitions=main-1508210305 Subject: [Ocfs2-devel] [patch 11/24] ocfs2: extend enough credits for freeing one truncate record while replaying truncate records X-BeenThere: ocfs2-devel@oss.oracle.com X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: ocfs2-devel-bounces@oss.oracle.com Errors-To: ocfs2-devel-bounces@oss.oracle.com X-Source-IP: userv0022.oracle.com [156.151.31.74] X-Spam-Status: No, score=-5.0 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Xue jiufei Subject: ocfs2: extend enough credits for freeing one truncate record while replaying truncate records Now function ocfs2_replay_truncate_records() first modifies tl_used, then calls ocfs2_extend_trans() to extend transactions for gd and alloc inode used for freeing clusters. jbd2_journal_restart() may be called and it may happen that tl_used in truncate log is decreased but the clusters are not freed, which means these clusters are lost. So we should avoid extending transactions in these two operations. Signed-off-by: joyce.xue Cc: Mark Fasheh Cc: Joel Becker Signed-off-by: Andrew Morton --- fs/ocfs2/alloc.c | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) diff -puN fs/ocfs2/alloc.c~extend-enough-credits-for-freeing-one-truncate-record-while-replaying-truncate-records fs/ocfs2/alloc.c --- a/fs/ocfs2/alloc.c~extend-enough-credits-for-freeing-one-truncate-record-while-replaying-truncate-records +++ a/fs/ocfs2/alloc.c @@ -5975,16 +5975,6 @@ static int ocfs2_replay_truncate_records ocfs2_journal_dirty(handle, tl_bh); - /* TODO: Perhaps we can calculate the bulk of the - * credits up front rather than extending like - * this. */ - status = ocfs2_extend_trans(handle, - OCFS2_TRUNCATE_LOG_FLUSH_ONE_REC); - if (status < 0) { - mlog_errno(status); - goto bail; - } - rec = tl->tl_recs[i]; start_blk = ocfs2_clusters_to_blocks(data_alloc_inode->i_sb, le32_to_cpu(rec.t_start)); @@ -6005,6 +5995,13 @@ static int ocfs2_replay_truncate_records goto bail; } } + + status = ocfs2_extend_trans(handle, + OCFS2_TRUNCATE_LOG_FLUSH_ONE_REC); + if (status < 0) { + mlog_errno(status); + goto bail; + } i--; } @@ -6063,7 +6060,7 @@ int __ocfs2_flush_truncate_log(struct oc goto out_mutex; } - handle = ocfs2_start_trans(osb, OCFS2_TRUNCATE_LOG_UPDATE); + handle = ocfs2_start_trans(osb, OCFS2_TRUNCATE_LOG_FLUSH_ONE_REC); if (IS_ERR(handle)) { status = PTR_ERR(handle); mlog_errno(status);