From ec3ba85f4083d10e32fe58b46db02d78ef71f6b8 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sun, 13 Feb 2011 13:26:42 +0000 Subject: xfs: more sensible inode refcounting for ialloc Currently we return iodes from xfs_ialloc with just a single reference held. But we need two references, as one is dropped during transaction commit and the second needs to be transfered to the VFS. Change xfs_ialloc to use xfs_iget plus xfs_trans_ijoin_ref to grab two references to the inode, and remove the now superflous IHOLD calls from all callers. This also greatly simplifies the error handling in xfs_create and also allow to remove xfs_trans_iget as no other callers are left. Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner Signed-off-by: Alex Elder --- fs/xfs/xfs_inode.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'fs/xfs/xfs_inode.c') diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index be7cf625421f..c39278b6c871 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -1016,8 +1016,8 @@ xfs_ialloc( * This is because we're setting fields here we need * to prevent others from looking at until we're done. */ - error = xfs_trans_iget(tp->t_mountp, tp, ino, - XFS_IGET_CREATE, XFS_ILOCK_EXCL, &ip); + error = xfs_iget(tp->t_mountp, tp, ino, XFS_IGET_CREATE, + XFS_ILOCK_EXCL, &ip); if (error) return error; ASSERT(ip != NULL); @@ -1166,6 +1166,7 @@ xfs_ialloc( /* * Log the new values stuffed into the inode. */ + xfs_trans_ijoin_ref(tp, ip, XFS_ILOCK_EXCL); xfs_trans_log_inode(tp, ip, flags); /* now that we have an i_mode we can setup inode ops and unlock */ -- cgit v1.2.2 From 6a19d9393a5402e69fc52f5da8a828b8499a8265 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 7 Mar 2011 10:02:35 +1100 Subject: xfs: convert xfs_cmn_err to xfs_alert_tag Continue the conversion of the old cmn_err interface be converting all the conditional panic tag errors to xfs_alert_tag() and then removing xfs_cmn_err(). Signed-off-by: Dave Chinner Reviewed-by: Alex Elder Reviewed-by: Christoph Hellwig --- fs/xfs/xfs_inode.c | 40 ++++++++++++++++++++-------------------- 1 file changed, 20 insertions(+), 20 deletions(-) (limited to 'fs/xfs/xfs_inode.c') diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index c39278b6c871..bf9ca579365c 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -2940,16 +2940,16 @@ xfs_iflush_int( if (XFS_TEST_ERROR(be16_to_cpu(dip->di_magic) != XFS_DINODE_MAGIC, mp, XFS_ERRTAG_IFLUSH_1, XFS_RANDOM_IFLUSH_1)) { - xfs_cmn_err(XFS_PTAG_IFLUSH, CE_ALERT, mp, - "xfs_iflush: Bad inode %Lu magic number 0x%x, ptr 0x%p", - ip->i_ino, be16_to_cpu(dip->di_magic), dip); + xfs_alert_tag(mp, XFS_PTAG_IFLUSH, + "%s: Bad inode %Lu magic number 0x%x, ptr 0x%p", + __func__, ip->i_ino, be16_to_cpu(dip->di_magic), dip); goto corrupt_out; } if (XFS_TEST_ERROR(ip->i_d.di_magic != XFS_DINODE_MAGIC, mp, XFS_ERRTAG_IFLUSH_2, XFS_RANDOM_IFLUSH_2)) { - xfs_cmn_err(XFS_PTAG_IFLUSH, CE_ALERT, mp, - "xfs_iflush: Bad inode %Lu, ptr 0x%p, magic number 0x%x", - ip->i_ino, ip, ip->i_d.di_magic); + xfs_alert_tag(mp, XFS_PTAG_IFLUSH, + "%s: Bad inode %Lu, ptr 0x%p, magic number 0x%x", + __func__, ip->i_ino, ip, ip->i_d.di_magic); goto corrupt_out; } if ((ip->i_d.di_mode & S_IFMT) == S_IFREG) { @@ -2957,9 +2957,9 @@ xfs_iflush_int( (ip->i_d.di_format != XFS_DINODE_FMT_EXTENTS) && (ip->i_d.di_format != XFS_DINODE_FMT_BTREE), mp, XFS_ERRTAG_IFLUSH_3, XFS_RANDOM_IFLUSH_3)) { - xfs_cmn_err(XFS_PTAG_IFLUSH, CE_ALERT, mp, - "xfs_iflush: Bad regular inode %Lu, ptr 0x%p", - ip->i_ino, ip); + xfs_alert_tag(mp, XFS_PTAG_IFLUSH, + "%s: Bad regular inode %Lu, ptr 0x%p", + __func__, ip->i_ino, ip); goto corrupt_out; } } else if ((ip->i_d.di_mode & S_IFMT) == S_IFDIR) { @@ -2968,28 +2968,28 @@ xfs_iflush_int( (ip->i_d.di_format != XFS_DINODE_FMT_BTREE) && (ip->i_d.di_format != XFS_DINODE_FMT_LOCAL), mp, XFS_ERRTAG_IFLUSH_4, XFS_RANDOM_IFLUSH_4)) { - xfs_cmn_err(XFS_PTAG_IFLUSH, CE_ALERT, mp, - "xfs_iflush: Bad directory inode %Lu, ptr 0x%p", - ip->i_ino, ip); + xfs_alert_tag(mp, XFS_PTAG_IFLUSH, + "%s: Bad directory inode %Lu, ptr 0x%p", + __func__, ip->i_ino, ip); goto corrupt_out; } } if (XFS_TEST_ERROR(ip->i_d.di_nextents + ip->i_d.di_anextents > ip->i_d.di_nblocks, mp, XFS_ERRTAG_IFLUSH_5, XFS_RANDOM_IFLUSH_5)) { - xfs_cmn_err(XFS_PTAG_IFLUSH, CE_ALERT, mp, - "xfs_iflush: detected corrupt incore inode %Lu, total extents = %d, nblocks = %Ld, ptr 0x%p", - ip->i_ino, + xfs_alert_tag(mp, XFS_PTAG_IFLUSH, + "%s: detected corrupt incore inode %Lu, " + "total extents = %d, nblocks = %Ld, ptr 0x%p", + __func__, ip->i_ino, ip->i_d.di_nextents + ip->i_d.di_anextents, - ip->i_d.di_nblocks, - ip); + ip->i_d.di_nblocks, ip); goto corrupt_out; } if (XFS_TEST_ERROR(ip->i_d.di_forkoff > mp->m_sb.sb_inodesize, mp, XFS_ERRTAG_IFLUSH_6, XFS_RANDOM_IFLUSH_6)) { - xfs_cmn_err(XFS_PTAG_IFLUSH, CE_ALERT, mp, - "xfs_iflush: bad inode %Lu, forkoff 0x%x, ptr 0x%p", - ip->i_ino, ip->i_d.di_forkoff, ip); + xfs_alert_tag(mp, XFS_PTAG_IFLUSH, + "%s: bad inode %Lu, forkoff 0x%x, ptr 0x%p", + __func__, ip->i_ino, ip->i_d.di_forkoff, ip); goto corrupt_out; } /* -- cgit v1.2.2 From 65333b4c3d46909872796321d15f179cb0e32028 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 7 Mar 2011 10:03:35 +1100 Subject: xfs: kill xfs_fs_repair_cmn_err() macro MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In certain cases of inode corruption, the xfs_fs_repair_cmn_err() macro is used to output an extra message in the corruption report. That extra message is "unmount and run xfs_repair", which really applies to any corruption report. Each case that this macro is called (except one) a following call to xfs_corruption_error() is made to optionally dump more information about the error. Hence, move the output of "run xfs_repair" to xfs_corruption_error() so that it is output on all corruption reports. Also, convert the callers of the repair macro that don't call xfs_corruption_error() to call it, hence provide consiѕtent error reporting for all cases where xfs_fs_repair_cmn_err() used to be called. Signed-off-by: Dave Chinner Reviewed-by: Alex Elder Reviewed-by: Christoph Hellwig --- fs/xfs/xfs_inode.c | 37 +++++++++++++++---------------------- 1 file changed, 15 insertions(+), 22 deletions(-) (limited to 'fs/xfs/xfs_inode.c') diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index bf9ca579365c..55169bbfc820 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -317,7 +317,7 @@ xfs_iformat( if (unlikely(be32_to_cpu(dip->di_nextents) + be16_to_cpu(dip->di_anextents) > be64_to_cpu(dip->di_nblocks))) { - xfs_fs_repair_cmn_err(CE_WARN, ip->i_mount, + xfs_warn(ip->i_mount, "corrupt dinode %Lu, extent total = %d, nblocks = %Lu.", (unsigned long long)ip->i_ino, (int)(be32_to_cpu(dip->di_nextents) + @@ -330,8 +330,7 @@ xfs_iformat( } if (unlikely(dip->di_forkoff > ip->i_mount->m_sb.sb_inodesize)) { - xfs_fs_repair_cmn_err(CE_WARN, ip->i_mount, - "corrupt dinode %Lu, forkoff = 0x%x.", + xfs_warn(ip->i_mount, "corrupt dinode %Lu, forkoff = 0x%x.", (unsigned long long)ip->i_ino, dip->di_forkoff); XFS_CORRUPTION_ERROR("xfs_iformat(2)", XFS_ERRLEVEL_LOW, @@ -341,7 +340,7 @@ xfs_iformat( if (unlikely((ip->i_d.di_flags & XFS_DIFLAG_REALTIME) && !ip->i_mount->m_rtdev_targp)) { - xfs_fs_repair_cmn_err(CE_WARN, ip->i_mount, + xfs_warn(ip->i_mount, "corrupt dinode %Lu, has realtime flag set.", ip->i_ino); XFS_CORRUPTION_ERROR("xfs_iformat(realtime)", @@ -373,9 +372,8 @@ xfs_iformat( * no local regular files yet */ if (unlikely((be16_to_cpu(dip->di_mode) & S_IFMT) == S_IFREG)) { - xfs_fs_repair_cmn_err(CE_WARN, ip->i_mount, - "corrupt inode %Lu " - "(local format for regular file).", + xfs_warn(ip->i_mount, + "corrupt inode %Lu (local format for regular file).", (unsigned long long) ip->i_ino); XFS_CORRUPTION_ERROR("xfs_iformat(4)", XFS_ERRLEVEL_LOW, @@ -385,9 +383,8 @@ xfs_iformat( di_size = be64_to_cpu(dip->di_size); if (unlikely(di_size > XFS_DFORK_DSIZE(dip, ip->i_mount))) { - xfs_fs_repair_cmn_err(CE_WARN, ip->i_mount, - "corrupt inode %Lu " - "(bad size %Ld for local inode).", + xfs_warn(ip->i_mount, + "corrupt inode %Lu (bad size %Ld for local inode).", (unsigned long long) ip->i_ino, (long long) di_size); XFS_CORRUPTION_ERROR("xfs_iformat(5)", @@ -431,9 +428,8 @@ xfs_iformat( size = be16_to_cpu(atp->hdr.totsize); if (unlikely(size < sizeof(struct xfs_attr_sf_hdr))) { - xfs_fs_repair_cmn_err(CE_WARN, ip->i_mount, - "corrupt inode %Lu " - "(bad attr fork size %Ld).", + xfs_warn(ip->i_mount, + "corrupt inode %Lu (bad attr fork size %Ld).", (unsigned long long) ip->i_ino, (long long) size); XFS_CORRUPTION_ERROR("xfs_iformat(8)", @@ -488,9 +484,8 @@ xfs_iformat_local( * kmem_alloc() or memcpy() below. */ if (unlikely(size > XFS_DFORK_SIZE(dip, ip->i_mount, whichfork))) { - xfs_fs_repair_cmn_err(CE_WARN, ip->i_mount, - "corrupt inode %Lu " - "(bad size %d for local fork, size = %d).", + xfs_warn(ip->i_mount, + "corrupt inode %Lu (bad size %d for local fork, size = %d).", (unsigned long long) ip->i_ino, size, XFS_DFORK_SIZE(dip, ip->i_mount, whichfork)); XFS_CORRUPTION_ERROR("xfs_iformat_local", XFS_ERRLEVEL_LOW, @@ -547,8 +542,7 @@ xfs_iformat_extents( * kmem_alloc() or memcpy() below. */ if (unlikely(size < 0 || size > XFS_DFORK_SIZE(dip, ip->i_mount, whichfork))) { - xfs_fs_repair_cmn_err(CE_WARN, ip->i_mount, - "corrupt inode %Lu ((a)extents = %d).", + xfs_warn(ip->i_mount, "corrupt inode %Lu ((a)extents = %d).", (unsigned long long) ip->i_ino, nex); XFS_CORRUPTION_ERROR("xfs_iformat_extents(1)", XFS_ERRLEVEL_LOW, ip->i_mount, dip); @@ -623,11 +617,10 @@ xfs_iformat_btree( || XFS_BMDR_SPACE_CALC(nrecs) > XFS_DFORK_SIZE(dip, ip->i_mount, whichfork) || XFS_IFORK_NEXTENTS(ip, whichfork) > ip->i_d.di_nblocks)) { - xfs_fs_repair_cmn_err(CE_WARN, ip->i_mount, - "corrupt inode %Lu (btree).", + xfs_warn(ip->i_mount, "corrupt inode %Lu (btree).", (unsigned long long) ip->i_ino); - XFS_ERROR_REPORT("xfs_iformat_btree", XFS_ERRLEVEL_LOW, - ip->i_mount); + XFS_CORRUPTION_ERROR("xfs_iformat_btree", XFS_ERRLEVEL_LOW, + ip->i_mount, dip); return XFS_ERROR(EFSCORRUPTED); } -- cgit v1.2.2 From 5348778699bba92bf28b79863e09e7181d8cf95c Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 7 Mar 2011 10:05:35 +1100 Subject: xfs: convert xfs_fs_cmn_err to new error logging API Continue to clean up the error logging code by converting all the callers of xfs_fs_cmn_err() to the new API. Once done, remove the unused old API function. Signed-off-by: Dave Chinner Reviewed-by: Alex Elder Reviewed-by: Christoph Hellwig --- fs/xfs/xfs_inode.c | 17 +++++++---------- 1 file changed, 7 insertions(+), 10 deletions(-) (limited to 'fs/xfs/xfs_inode.c') diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index 55169bbfc820..d820ada49b18 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -110,8 +110,8 @@ xfs_inobp_check( dip = (xfs_dinode_t *)xfs_buf_offset(bp, i * mp->m_sb.sb_inodesize); if (!dip->di_next_unlinked) { - xfs_fs_cmn_err(CE_ALERT, mp, - "Detected a bogus zero next_unlinked field in incore inode buffer 0x%p. About to pop an ASSERT.", + xfs_alert(mp, + "Detected bogus zero next_unlinked field in incore inode buffer 0x%p.", bp); ASSERT(dip->di_next_unlinked); } @@ -806,11 +806,9 @@ xfs_iread( */ if (be16_to_cpu(dip->di_magic) != XFS_DINODE_MAGIC) { #ifdef DEBUG - xfs_fs_cmn_err(CE_ALERT, mp, "xfs_iread: " - "dip->di_magic (0x%x) != " - "XFS_DINODE_MAGIC (0x%x)", - be16_to_cpu(dip->di_magic), - XFS_DINODE_MAGIC); + xfs_alert(mp, + "%s: dip->di_magic (0x%x) != XFS_DINODE_MAGIC (0x%x)", + __func__, be16_to_cpu(dip->di_magic), XFS_DINODE_MAGIC); #endif /* DEBUG */ error = XFS_ERROR(EINVAL); goto out_brelse; @@ -828,9 +826,8 @@ xfs_iread( error = xfs_iformat(ip, dip); if (error) { #ifdef DEBUG - xfs_fs_cmn_err(CE_ALERT, mp, "xfs_iread: " - "xfs_iformat() returned error %d", - error); + xfs_alert(mp, "%s: xfs_iformat() returned error %d", + __func__, error); #endif /* DEBUG */ goto out_brelse; } -- cgit v1.2.2 From 0b932cccbdc09a72aa370456a59b40ecd6b10baf Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 7 Mar 2011 10:08:35 +1100 Subject: xfs: Convert remaining cmn_err() callers to new API Once converted, kill the remainder of the cmn_err() interface. Signed-off-by: Dave Chinner Reviewed-by: Alex Elder Reviewed-by: Christoph Hellwig --- fs/xfs/xfs_inode.c | 30 +++++++++++++----------------- 1 file changed, 13 insertions(+), 17 deletions(-) (limited to 'fs/xfs/xfs_inode.c') diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index d820ada49b18..da871f532236 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -142,10 +142,9 @@ xfs_imap_to_bp( (int)imap->im_len, buf_flags, &bp); if (error) { if (error != EAGAIN) { - cmn_err(CE_WARN, - "xfs_imap_to_bp: xfs_trans_read_buf()returned " - "an error %d on %s. Returning error.", - error, mp->m_fsname); + xfs_warn(mp, + "%s: xfs_trans_read_buf() returned error %d.", + __func__, error); } else { ASSERT(buf_flags & XBF_TRYLOCK); } @@ -180,12 +179,11 @@ xfs_imap_to_bp( XFS_CORRUPTION_ERROR("xfs_imap_to_bp", XFS_ERRLEVEL_HIGH, mp, dip); #ifdef DEBUG - cmn_err(CE_PANIC, - "Device %s - bad inode magic/vsn " - "daddr %lld #%d (magic=%x)", - XFS_BUFTARG_NAME(mp->m_ddev_targp), + xfs_emerg(mp, + "bad inode magic/vsn daddr %lld #%d (magic=%x)", (unsigned long long)imap->im_blkno, i, be16_to_cpu(dip->di_magic)); + ASSERT(0); #endif xfs_trans_brelse(tp, bp); return XFS_ERROR(EFSCORRUPTED); @@ -1811,9 +1809,8 @@ xfs_iunlink_remove( */ error = xfs_itobp(mp, tp, ip, &dip, &ibp, XBF_LOCK); if (error) { - cmn_err(CE_WARN, - "xfs_iunlink_remove: xfs_itobp() returned an error %d on %s. Returning error.", - error, mp->m_fsname); + xfs_warn(mp, "%s: xfs_itobp() returned error %d.", + __func__, error); return error; } next_agino = be32_to_cpu(dip->di_next_unlinked); @@ -1858,9 +1855,9 @@ xfs_iunlink_remove( error = xfs_inotobp(mp, tp, next_ino, &last_dip, &last_ibp, &last_offset, 0); if (error) { - cmn_err(CE_WARN, - "xfs_iunlink_remove: xfs_inotobp() returned an error %d on %s. Returning error.", - error, mp->m_fsname); + xfs_warn(mp, + "%s: xfs_inotobp() returned error %d.", + __func__, error); return error; } next_agino = be32_to_cpu(last_dip->di_next_unlinked); @@ -1873,9 +1870,8 @@ xfs_iunlink_remove( */ error = xfs_itobp(mp, tp, ip, &dip, &ibp, XBF_LOCK); if (error) { - cmn_err(CE_WARN, - "xfs_iunlink_remove: xfs_itobp() returned an error %d on %s. Returning error.", - error, mp->m_fsname); + xfs_warn(mp, "%s: xfs_itobp(2) returned error %d.", + __func__, error); return error; } next_agino = be32_to_cpu(dip->di_next_unlinked); -- cgit v1.2.2 From 1bfd8d04190c615bb8d1d98188dead0c09702208 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Sat, 26 Mar 2011 09:13:55 +1100 Subject: xfs: introduce inode cluster buffer trylocks for xfs_iflush There is an ABBA deadlock between synchronous inode flushing in xfs_reclaim_inode and xfs_icluster_free. xfs_icluster_free locks the buffer, then takes inode ilocks, whilst synchronous reclaim takes the ilock followed by the buffer lock in xfs_iflush(). To avoid this deadlock, separate the inode cluster buffer locking semantics from the synchronous inode flush semantics, allowing callers to attempt to lock the buffer but still issue synchronous IO if it can get the buffer. This requires xfs_iflush() calls that currently use non-blocking semantics to pass SYNC_TRYLOCK rather than 0 as the flags parameter. This allows xfs_reclaim_inode to avoid the deadlock on the buffer lock and detect the failure so that it can drop the inode ilock and restart the reclaim attempt on the inode. This allows xfs_ifree_cluster to obtain the inode lock, mark the inode stale and release it and hence defuse the deadlock situation. It also has the pleasant side effect of avoiding IO in xfs_reclaim_inode when it tries to next reclaim the inode as it is now marked stale. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Reviewed-by: Alex Elder --- fs/xfs/xfs_inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/xfs/xfs_inode.c') diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index da871f532236..742c8330994a 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -2835,7 +2835,7 @@ xfs_iflush( * Get the buffer containing the on-disk inode. */ error = xfs_itobp(mp, NULL, ip, &dip, &bp, - (flags & SYNC_WAIT) ? XBF_LOCK : XBF_TRYLOCK); + (flags & SYNC_TRYLOCK) ? XBF_TRYLOCK : XBF_LOCK); if (error || !bp) { xfs_ifunlock(ip); return error; -- cgit v1.2.2