From patchwork Thu Aug 25 23:46:50 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Darrick J. Wong" X-Patchwork-Id: 9300459 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 90CC760757 for ; Thu, 25 Aug 2016 23:47:20 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 81976293A6 for ; Thu, 25 Aug 2016 23:47:20 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7671429402; Thu, 25 Aug 2016 23:47:20 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from oss.sgi.com (oss.sgi.com [192.48.182.195]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id E8F08293A6 for ; Thu, 25 Aug 2016 23:47:19 +0000 (UTC) Received: from oss.sgi.com (localhost [IPv6:::1]) by oss.sgi.com (Postfix) with ESMTP id EEF2080A7; Thu, 25 Aug 2016 18:46:57 -0500 (CDT) X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 752E580A6 for ; Thu, 25 Aug 2016 18:46:56 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 44DF18F8035 for ; Thu, 25 Aug 2016 16:46:56 -0700 (PDT) X-ASG-Debug-ID: 1472168814-0bf57b5311209920001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id a3yjzckw23GfsmfL (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 25 Aug 2016 16:46:54 -0700 (PDT) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Effective-Source-IP: userp1040.oracle.com[156.151.31.81] X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id u7PNkr0e028491 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 25 Aug 2016 23:46:53 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by userv0021.oracle.com (8.13.8/8.13.8) with ESMTP id u7PNkrk9022207 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 25 Aug 2016 23:46:53 GMT Received: from abhmp0013.oracle.com (abhmp0013.oracle.com [141.146.116.19]) by userv0121.oracle.com (8.13.8/8.13.8) with ESMTP id u7PNkqrU018516; Thu, 25 Aug 2016 23:46:52 GMT Received: from localhost (/10.145.178.207) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 25 Aug 2016 16:46:52 -0700 Subject: [PATCH 03/71] xfs: count the blocks in a btree From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 03/71] xfs: count the blocks in a btree To: david@fromorbit.com, darrick.wong@oracle.com Date: Thu, 25 Aug 2016 16:46:50 -0700 Message-ID: <147216881078.4420.6999962677135186371.stgit@birch.djwong.org> In-Reply-To: <147216879156.4420.2446767701729565218.stgit@birch.djwong.org> References: <147216879156.4420.2446767701729565218.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-Source-IP: userv0021.oracle.com [156.151.31.71] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1472168814 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Barracuda-Scan-Msg-Size: 1595 X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.32328 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Cc: linux-xfs@vger.kernel.org, xfs@oss.sgi.com X-BeenThere: xfs@oss.sgi.com X-Mailman-Version: 2.1.14 Precedence: list List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: xfs-bounces@oss.sgi.com Sender: xfs-bounces@oss.sgi.com X-Virus-Scanned: ClamAV using ClamSMTP Provide a helper method to count the number of blocks in a short form btree. The refcount and rmap btrees need to know the number of blocks already in use to set up their per-AG block reservations during mount. v2: Use btree_visit_blocks instead of open-coding our own traversal routine. Signed-off-by: Darrick J. Wong --- libxfs/xfs_btree.c | 23 +++++++++++++++++++++++ libxfs/xfs_btree.h | 2 ++ 2 files changed, 25 insertions(+) diff --git a/libxfs/xfs_btree.c b/libxfs/xfs_btree.c index b3e2ce9..43c809f 100644 --- a/libxfs/xfs_btree.c +++ b/libxfs/xfs_btree.c @@ -4821,3 +4821,26 @@ xfs_btree_calc_size( } return rval; } + +int +xfs_btree_count_blocks_helper( + struct xfs_btree_cur *cur, + int level, + void *data) +{ + xfs_extlen_t *blocks = data; + (*blocks)++; + + return 0; +} + +/* Count the blocks in a btree and return the result in *blocks. */ +int +xfs_btree_count_blocks( + struct xfs_btree_cur *cur, + xfs_extlen_t *blocks) +{ + *blocks = 0; + return xfs_btree_visit_blocks(cur, xfs_btree_count_blocks_helper, + blocks); +} diff --git a/libxfs/xfs_btree.h b/libxfs/xfs_btree.h index 607463a..be4a0c1 100644 --- a/libxfs/xfs_btree.h +++ b/libxfs/xfs_btree.h @@ -519,4 +519,6 @@ typedef int (*xfs_btree_visit_blocks_fn)(struct xfs_btree_cur *cur, int level, int xfs_btree_visit_blocks(struct xfs_btree_cur *cur, xfs_btree_visit_blocks_fn fn, void *data); +int xfs_btree_count_blocks(struct xfs_btree_cur *cur, xfs_extlen_t *blocks); + #endif /* __XFS_BTREE_H__ */