From patchwork Thu Jul 21 04:58:23 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: 9240847 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 A29B260756 for ; Thu, 21 Jul 2016 04:59:02 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 987F61FF15 for ; Thu, 21 Jul 2016 04:59:02 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8D06227C38; Thu, 21 Jul 2016 04:59:02 +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=unavailable 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 D60E627C0B for ; Thu, 21 Jul 2016 04:59:01 +0000 (UTC) Received: from oss.sgi.com (localhost [IPv6:::1]) by oss.sgi.com (Postfix) with ESMTP id EE46B7CFF; Wed, 20 Jul 2016 23:58:32 -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 4F7E77CFD for ; Wed, 20 Jul 2016 23:58:31 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 1FDD78F8035 for ; Wed, 20 Jul 2016 21:58:31 -0700 (PDT) X-ASG-Debug-ID: 1469077108-04cb6c03671a480001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id WbARGzYWFVXpqMGw (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 20 Jul 2016 21:58:29 -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 aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id u6L4wQLG022546 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 21 Jul 2016 04:58:26 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by aserv0022.oracle.com (8.13.8/8.13.8) with ESMTP id u6L4wPFD000804 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 21 Jul 2016 04:58:25 GMT Received: from abhmp0013.oracle.com (abhmp0013.oracle.com [141.146.116.19]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id u6L4wPMR023218; Thu, 21 Jul 2016 04:58:25 GMT Received: from localhost (/24.21.211.40) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 20 Jul 2016 21:58:24 -0700 Subject: [PATCH 21/47] xfs: introduce rmap btree definitions From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 21/47] xfs: introduce rmap btree definitions To: david@fromorbit.com, darrick.wong@oracle.com Date: Wed, 20 Jul 2016 21:58:23 -0700 Message-ID: <146907710353.25461.14940637684666708372.stgit@birch.djwong.org> In-Reply-To: <146907695530.25461.3225785294902719773.stgit@birch.djwong.org> References: <146907695530.25461.3225785294902719773.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-Source-IP: aserv0022.oracle.com [141.146.126.234] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1469077109 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Barracuda-Scan-Msg-Size: 6525 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 3.2.3.31417 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-fsdevel@vger.kernel.org, vishal.l.verma@intel.com, bfoster@redhat.com, Dave Chinner , 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 From: Dave Chinner Add new per-ag rmap btree definitions to the per-ag structures. The rmap btree will sit in the empty slots on disk after the free space btrees, and hence form a part of the array of space management btrees. This requires the definition of the btree to be contiguous with the free space btrees. Signed-off-by: Dave Chinner Signed-off-by: Dave Chinner Reviewed-by: Brian Foster --- fs/xfs/libxfs/xfs_alloc.c | 6 ++++++ fs/xfs/libxfs/xfs_btree.c | 4 ++-- fs/xfs/libxfs/xfs_btree.h | 3 +++ fs/xfs/libxfs/xfs_format.h | 22 +++++++++++++++++----- fs/xfs/libxfs/xfs_types.h | 4 ++-- 5 files changed, 30 insertions(+), 9 deletions(-) diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c index 22ac3f1..c02d8e8 100644 --- a/fs/xfs/libxfs/xfs_alloc.c +++ b/fs/xfs/libxfs/xfs_alloc.c @@ -2272,6 +2272,10 @@ xfs_agf_verify( be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]) > XFS_BTREE_MAXLEVELS) return false; + if (xfs_sb_version_hasrmapbt(&mp->m_sb) && + be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAP]) > XFS_BTREE_MAXLEVELS) + return false; + /* * during growfs operations, the perag is not fully initialised, * so we can't use it for any useful checking. growfs ensures we can't @@ -2403,6 +2407,8 @@ xfs_alloc_read_agf( be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNOi]); pag->pagf_levels[XFS_BTNUM_CNTi] = be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNTi]); + pag->pagf_levels[XFS_BTNUM_RMAPi] = + be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAPi]); spin_lock_init(&pag->pagb_lock); pag->pagb_count = 0; pag->pagb_tree = RB_ROOT; diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c index 5c4d221..3a15766 100644 --- a/fs/xfs/libxfs/xfs_btree.c +++ b/fs/xfs/libxfs/xfs_btree.c @@ -44,9 +44,9 @@ kmem_zone_t *xfs_btree_cur_zone; * Btree magic numbers. */ static const __uint32_t xfs_magics[2][XFS_BTNUM_MAX] = { - { XFS_ABTB_MAGIC, XFS_ABTC_MAGIC, XFS_BMAP_MAGIC, XFS_IBT_MAGIC, + { XFS_ABTB_MAGIC, XFS_ABTC_MAGIC, 0, XFS_BMAP_MAGIC, XFS_IBT_MAGIC, XFS_FIBT_MAGIC }, - { XFS_ABTB_CRC_MAGIC, XFS_ABTC_CRC_MAGIC, + { XFS_ABTB_CRC_MAGIC, XFS_ABTC_CRC_MAGIC, XFS_RMAP_CRC_MAGIC, XFS_BMAP_CRC_MAGIC, XFS_IBT_CRC_MAGIC, XFS_FIBT_CRC_MAGIC } }; #define xfs_btree_magic(cur) \ diff --git a/fs/xfs/libxfs/xfs_btree.h b/fs/xfs/libxfs/xfs_btree.h index 629ef4f..f338706 100644 --- a/fs/xfs/libxfs/xfs_btree.h +++ b/fs/xfs/libxfs/xfs_btree.h @@ -77,6 +77,7 @@ union xfs_btree_rec { #define XFS_BTNUM_BMAP ((xfs_btnum_t)XFS_BTNUM_BMAPi) #define XFS_BTNUM_INO ((xfs_btnum_t)XFS_BTNUM_INOi) #define XFS_BTNUM_FINO ((xfs_btnum_t)XFS_BTNUM_FINOi) +#define XFS_BTNUM_RMAP ((xfs_btnum_t)XFS_BTNUM_RMAPi) /* * For logging record fields. @@ -109,6 +110,7 @@ do { \ case XFS_BTNUM_BMAP: __XFS_BTREE_STATS_INC(__mp, bmbt, stat); break; \ case XFS_BTNUM_INO: __XFS_BTREE_STATS_INC(__mp, ibt, stat); break; \ case XFS_BTNUM_FINO: __XFS_BTREE_STATS_INC(__mp, fibt, stat); break; \ + case XFS_BTNUM_RMAP: break; \ case XFS_BTNUM_MAX: ASSERT(0); /* fucking gcc */ ; break; \ } \ } while (0) @@ -129,6 +131,7 @@ do { \ __XFS_BTREE_STATS_ADD(__mp, ibt, stat, val); break; \ case XFS_BTNUM_FINO: \ __XFS_BTREE_STATS_ADD(__mp, fibt, stat, val); break; \ + case XFS_BTNUM_RMAP: break; \ case XFS_BTNUM_MAX: ASSERT(0); /* fucking gcc */ ; break; \ } \ } while (0) diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h index adb204d..74f4d3d 100644 --- a/fs/xfs/libxfs/xfs_format.h +++ b/fs/xfs/libxfs/xfs_format.h @@ -455,6 +455,7 @@ xfs_sb_has_compat_feature( } #define XFS_SB_FEAT_RO_COMPAT_FINOBT (1 << 0) /* free inode btree */ +#define XFS_SB_FEAT_RO_COMPAT_RMAPBT (1 << 1) /* reverse map btree */ #define XFS_SB_FEAT_RO_COMPAT_ALL \ (XFS_SB_FEAT_RO_COMPAT_FINOBT) #define XFS_SB_FEAT_RO_COMPAT_UNKNOWN ~XFS_SB_FEAT_RO_COMPAT_ALL @@ -538,6 +539,12 @@ static inline bool xfs_sb_version_hasmetauuid(struct xfs_sb *sbp) (sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_META_UUID); } +static inline bool xfs_sb_version_hasrmapbt(struct xfs_sb *sbp) +{ + return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) && + (sbp->sb_features_ro_compat & XFS_SB_FEAT_RO_COMPAT_RMAPBT); +} + /* * end of superblock version macros */ @@ -598,10 +605,10 @@ xfs_is_quota_inode(struct xfs_sb *sbp, xfs_ino_t ino) #define XFS_AGI_GOOD_VERSION(v) ((v) == XFS_AGI_VERSION) /* - * Btree number 0 is bno, 1 is cnt. This value gives the size of the + * Btree number 0 is bno, 1 is cnt, 2 is rmap. This value gives the size of the * arrays below. */ -#define XFS_BTNUM_AGF ((int)XFS_BTNUM_CNTi + 1) +#define XFS_BTNUM_AGF ((int)XFS_BTNUM_RMAPi + 1) /* * The second word of agf_levels in the first a.g. overlaps the EFS @@ -618,12 +625,10 @@ typedef struct xfs_agf { __be32 agf_seqno; /* sequence # starting from 0 */ __be32 agf_length; /* size in blocks of a.g. */ /* - * Freespace information + * Freespace and rmap information */ __be32 agf_roots[XFS_BTNUM_AGF]; /* root blocks */ - __be32 agf_spare0; /* spare field */ __be32 agf_levels[XFS_BTNUM_AGF]; /* btree levels */ - __be32 agf_spare1; /* spare field */ __be32 agf_flfirst; /* first freelist block's index */ __be32 agf_fllast; /* last freelist block's index */ @@ -1308,6 +1313,13 @@ typedef __be32 xfs_inobt_ptr_t; #define XFS_FIBT_BLOCK(mp) ((xfs_agblock_t)(XFS_IBT_BLOCK(mp) + 1)) /* + * Reverse mapping btree format definitions + * + * There is a btree for the reverse map per allocation group + */ +#define XFS_RMAP_CRC_MAGIC 0x524d4233 /* 'RMB3' */ + +/* * The first data block of an AG depends on whether the filesystem was formatted * with the finobt feature. If so, account for the finobt reserved root btree * block. diff --git a/fs/xfs/libxfs/xfs_types.h b/fs/xfs/libxfs/xfs_types.h index b79dc66..3d50364 100644 --- a/fs/xfs/libxfs/xfs_types.h +++ b/fs/xfs/libxfs/xfs_types.h @@ -108,8 +108,8 @@ typedef enum { } xfs_lookup_t; typedef enum { - XFS_BTNUM_BNOi, XFS_BTNUM_CNTi, XFS_BTNUM_BMAPi, XFS_BTNUM_INOi, - XFS_BTNUM_FINOi, XFS_BTNUM_MAX + XFS_BTNUM_BNOi, XFS_BTNUM_CNTi, XFS_BTNUM_RMAPi, XFS_BTNUM_BMAPi, + XFS_BTNUM_INOi, XFS_BTNUM_FINOi, XFS_BTNUM_MAX } xfs_btnum_t; struct xfs_name {