From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 465CC8419 for ; Thu, 25 Aug 2016 18:59:52 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id E01B38F8037 for ; Thu, 25 Aug 2016 16:59:51 -0700 (PDT) Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id 3zljgclq5fcPfxCp (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 25 Aug 2016 16:59:50 -0700 (PDT) Subject: [PATCH 11/29] xfs: add realtime reverse map inode to superblock From: "Darrick J. Wong" Date: Thu, 25 Aug 2016 16:59:45 -0700 Message-ID: <147216958525.7022.10338035699781363413.stgit@birch.djwong.org> In-Reply-To: <147216950911.7022.438115723996286926.stgit@birch.djwong.org> References: <147216950911.7022.438115723996286926.stgit@birch.djwong.org> MIME-Version: 1.0 List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: xfs-bounces@oss.sgi.com Sender: xfs-bounces@oss.sgi.com To: david@fromorbit.com, darrick.wong@oracle.com Cc: linux-xfs@vger.kernel.org, xfs@oss.sgi.com Add a field to the superblock to record the rt rmap inode and load it at mount time. Signed-off-by: Darrick J. Wong --- include/xfs_mount.h | 1 + libxfs/init.c | 6 ++++-- libxfs/xfs_format.h | 10 +++++++++- libxfs/xfs_inode_fork.c | 11 +++++++++++ libxfs/xfs_rtrmap_btree.c | 2 +- libxfs/xfs_sb.c | 2 ++ 6 files changed, 28 insertions(+), 4 deletions(-) diff --git a/include/xfs_mount.h b/include/xfs_mount.h index fcc0d95..8e9c9f0 100644 --- a/include/xfs_mount.h +++ b/include/xfs_mount.h @@ -42,6 +42,7 @@ typedef struct xfs_mount { uint m_rsumsize; /* size of rt summary, bytes */ struct xfs_inode *m_rbmip; /* pointer to bitmap inode */ struct xfs_inode *m_rsumip; /* pointer to summary inode */ + struct xfs_inode *m_rrmapip; /* realtime rmap inode */ struct xfs_buftarg *m_ddev_targp; struct xfs_buftarg *m_logdev_targp; struct xfs_buftarg *m_rtdev_targp; diff --git a/libxfs/init.c b/libxfs/init.c index e3f8a5d..3217ec7 100644 --- a/libxfs/init.c +++ b/libxfs/init.c @@ -458,7 +458,7 @@ rtmount_init( (uint)sizeof(xfs_suminfo_t) * mp->m_rsumlevels * sbp->sb_rbmblocks; mp->m_rsumsize = roundup(mp->m_rsumsize, sbp->sb_blocksize); - mp->m_rbmip = mp->m_rsumip = NULL; + mp->m_rbmip = mp->m_rsumip = mp->m_rrmapip = NULL; /* * Allow debugger to be run without the realtime device present. @@ -830,11 +830,13 @@ libxfs_mount( void libxfs_rtmount_destroy(xfs_mount_t *mp) { + if (mp->m_rrmapip) + IRELE(mp->m_rrmapip); if (mp->m_rsumip) IRELE(mp->m_rsumip); if (mp->m_rbmip) IRELE(mp->m_rbmip); - mp->m_rsumip = mp->m_rbmip = NULL; + mp->m_rsumip = mp->m_rbmip = mp->m_rrmapip = NULL; } /* diff --git a/libxfs/xfs_format.h b/libxfs/xfs_format.h index 82ff6fc..5fb5e52 100644 --- a/libxfs/xfs_format.h +++ b/libxfs/xfs_format.h @@ -183,6 +183,7 @@ typedef struct xfs_sb { xfs_ino_t sb_pquotino; /* project quota inode */ xfs_lsn_t sb_lsn; /* last write sequence */ uuid_t sb_meta_uuid; /* metadata file system unique id */ + xfs_ino_t sb_rrmapino; /* realtime reverse map inode */ /* must be padded to 64 bit alignment */ } xfs_sb_t; @@ -270,6 +271,7 @@ typedef struct xfs_dsb { __be64 sb_pquotino; /* project quota inode */ __be64 sb_lsn; /* last write sequence */ uuid_t sb_meta_uuid; /* metadata file system unique id */ + __be64 sb_rrmapino; /* realtime reverse map inode */ /* must be padded to 64 bit alignment */ } xfs_dsb_t; @@ -553,6 +555,11 @@ static inline bool xfs_sb_version_hasrmapbt(struct xfs_sb *sbp) (sbp->sb_features_ro_compat & XFS_SB_FEAT_RO_COMPAT_RMAPBT); } +static inline bool xfs_sb_version_hasrtrmapbt(struct xfs_sb *sbp) +{ + return sbp->sb_rblocks > 0 && xfs_sb_version_hasrmapbt(sbp); +} + static inline bool xfs_sb_version_hasreflink(struct xfs_sb *sbp) { return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) && @@ -948,7 +955,8 @@ typedef enum xfs_dinode_fmt { XFS_DINODE_FMT_LOCAL, /* bulk data */ XFS_DINODE_FMT_EXTENTS, /* struct xfs_bmbt_rec */ XFS_DINODE_FMT_BTREE, /* struct xfs_bmdr_block */ - XFS_DINODE_FMT_UUID /* uuid_t */ + XFS_DINODE_FMT_UUID, /* uuid_t */ + XFS_DINODE_FMT_RMAP, /* reverse mapping btree */ } xfs_dinode_fmt_t; /* diff --git a/libxfs/xfs_inode_fork.c b/libxfs/xfs_inode_fork.c index 6ed0254..b006e2f 100644 --- a/libxfs/xfs_inode_fork.c +++ b/libxfs/xfs_inode_fork.c @@ -191,6 +191,13 @@ xfs_iformat_fork( case XFS_DINODE_FMT_BTREE: error = xfs_iformat_btree(ip, dip, XFS_DATA_FORK); break; + case XFS_DINODE_FMT_RMAP: + if (!xfs_sb_version_hasrtrmapbt(&ip->i_mount->m_sb)) + return -EFSCORRUPTED; + if (ip->i_ino != ip->i_mount->m_sb.sb_rrmapino) + return -EFSCORRUPTED; + /* to be implemented later */ + break; default: XFS_ERROR_REPORT("xfs_iformat(6)", XFS_ERRLEVEL_LOW, ip->i_mount); @@ -793,6 +800,10 @@ xfs_iflush_fork( } break; + case XFS_DINODE_FMT_RMAP: + /* to be implemented later */ + break; + default: ASSERT(0); break; diff --git a/libxfs/xfs_rtrmap_btree.c b/libxfs/xfs_rtrmap_btree.c index 66c9190..e4dbe88 100644 --- a/libxfs/xfs_rtrmap_btree.c +++ b/libxfs/xfs_rtrmap_btree.c @@ -352,7 +352,7 @@ xfs_rtrmapbt_verify( if (!xfs_sb_version_hasrmapbt(&mp->m_sb)) return false; - if (!xfs_btree_lblock_v5hdr_verify(bp, XFS_RMAP_OWN_UNKNOWN)) + if (!xfs_btree_lblock_v5hdr_verify(bp, mp->m_sb.sb_rrmapino)) return false; level = be16_to_cpu(block->bb_level); if (level > mp->m_rtrmap_maxlevels) diff --git a/libxfs/xfs_sb.c b/libxfs/xfs_sb.c index 2e6afe9..14ec707 100644 --- a/libxfs/xfs_sb.c +++ b/libxfs/xfs_sb.c @@ -426,6 +426,7 @@ __xfs_sb_from_disk( uuid_copy(&to->sb_meta_uuid, &from->sb_meta_uuid); else uuid_copy(&to->sb_meta_uuid, &from->sb_uuid); + to->sb_rrmapino = be64_to_cpu(from->sb_rrmapino); /* Convert on-disk flags to in-memory flags? */ if (convert_xquota) xfs_sb_quota_from_disk(to); @@ -569,6 +570,7 @@ xfs_sb_to_disk( to->sb_lsn = cpu_to_be64(from->sb_lsn); if (xfs_sb_version_hasmetauuid(from)) uuid_copy(&to->sb_meta_uuid, &from->sb_meta_uuid); + to->sb_rrmapino = cpu_to_be64(from->sb_rrmapino); } } _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs