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alistair23-linux/fs/xfs
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Dave Chinner 5f6bed76c0 xfs: Introduce an ordered buffer item 
If we have a buffer that we have modified but we do not wish to
physically log in a transaction (e.g. we've logged a logical
change), we still need to ensure that transactional integrity is
maintained. Hence we must not move the tail of the log past the
transaction that the buffer is associated with before the buffer is
written to disk.

This means these special buffers still need to be included in the
transaction and added to the AIL just like a normal buffer, but we
do not want the modifications to the buffer written into the
transaction. IOWs, what we want is an "ordered buffer" that
maintains the same transactional life cycle as a physically logged
buffer, just without the transcribing of the modifications to the
log.

Hence we need to flag the buffer as an "ordered buffer" to avoid
including it in vector size calculations or formatting during the
transaction. Once the transaction is committed, the buffer appears
for all intents to be the same as a physically logged buffer as it
transitions through the log and AIL.

Relogging will also work just fine for such an ordered buffer - the
logical transaction will be replayed before the subsequent
modifications that relog the buffer, so everything will be
reconstructed correctly by recovery.

Signed-off-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
2013-06-27 13:33:11 -05:00
..
Kconfig xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
kmem.c
kmem.h
Makefile xfs: split remote attribute code out 2013-04-27 12:49:32 -05:00
mrlock.h xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
time.h
uuid.c
uuid.h xfs: add CRC infrastructure 2012-11-19 20:11:24 -06:00
xfs.h xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
xfs_acl.c xfs: increase number of ACL entries for V5 superblocks 2013-06-05 11:26:53 -05:00
xfs_acl.h xfs: increase number of ACL entries for V5 superblocks 2013-06-05 11:26:53 -05:00
xfs_ag.h xfs: add CRC checks to the AGI 2013-04-21 14:57:43 -05:00
xfs_alloc.c xfs: Avoid pathological backwards allocation 2013-05-20 13:09:11 -05:00
xfs_alloc.h xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_alloc_btree.c xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
xfs_alloc_btree.h xfs: add support for large btree blocks 2013-04-21 14:53:46 -05:00
xfs_aops.c xfs: fix sub-page blocksize data integrity writes 2013-05-20 14:14:25 -05:00
xfs_aops.h
xfs_attr.c xfs: split remote attribute code out 2013-04-27 12:49:32 -05:00
xfs_attr.h xfs: split remote attribute code out 2013-04-27 12:49:32 -05:00
xfs_attr_leaf.c xfs: fix remote attribute invalidation for a leaf 2013-06-04 17:36:30 -05:00
xfs_attr_leaf.h xfs: fix implicit padding in directory and attr CRC formats 2013-06-13 10:30:03 -05:00
xfs_attr_remote.c xfs: rework remote attr CRCs 2013-05-23 18:04:06 -05:00
xfs_attr_remote.h xfs: rework remote attr CRCs 2013-05-23 18:04:06 -05:00
xfs_attr_sf.h
xfs_bit.c
xfs_bit.h
xfs_bmap.c xfs: buffer type overruns blf_flags field 2013-04-27 13:01:58 -05:00
xfs_bmap.h
xfs_bmap_btree.c xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
xfs_bmap_btree.h xfs: check on-disk (not incore) btree root size in dfrag.c 2013-06-20 13:26:09 -05:00
xfs_btree.c xfs: ensure btree root split sets blkno correctly 2013-06-13 14:18:02 -05:00
xfs_btree.h xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
xfs_buf.c xfs: rework remote attr CRCs 2013-05-23 18:04:06 -05:00
xfs_buf.h xfs: use b_maps[] for discontiguous buffers 2013-01-16 16:07:11 -06:00
xfs_buf_item.c xfs: Introduce an ordered buffer item 2013-06-27 13:33:11 -05:00
xfs_buf_item.h xfs: Introduce an ordered buffer item 2013-06-27 13:33:11 -05:00
xfs_cksum.h xfs: add CRC infrastructure 2012-11-19 20:11:24 -06:00
xfs_da_btree.c xfs: xfs_da3_node_read_verify() doesn't handle XFS_ATTR3_LEAF_MAGIC 2013-05-20 16:32:30 -05:00
xfs_da_btree.h xfs: add buffer types to directory and attribute buffers 2013-04-27 13:01:06 -05:00
xfs_dfrag.c xfs: check on-disk (not incore) btree root size in dfrag.c 2013-06-20 13:26:09 -05:00
xfs_dfrag.h
xfs_dinode.h xfs: add version 3 inode format with CRCs 2013-04-21 15:03:33 -05:00
xfs_dir2.c
xfs_dir2.h
xfs_dir2_block.c xfs: buffer type overruns blf_flags field 2013-04-27 13:01:58 -05:00
xfs_dir2_data.c xfs: buffer type overruns blf_flags field 2013-04-27 13:01:58 -05:00
xfs_dir2_format.h xfs: fix implicit padding in directory and attr CRC formats 2013-06-13 10:30:03 -05:00
xfs_dir2_leaf.c xfs: plug directory buffer readahead 2013-06-27 13:27:24 -05:00
xfs_dir2_node.c xfs: fix dir3 freespace block corruption 2013-05-30 14:32:47 -05:00
xfs_dir2_priv.h xfs: add buffer types to directory and attribute buffers 2013-04-27 13:01:06 -05:00
xfs_dir2_sf.c xfs: shortform directory offsets change for dir3 format 2013-04-27 12:24:32 -05:00
xfs_discard.c
xfs_discard.h
xfs_dquot.c xfs: rework dquot CRCs 2013-06-04 17:35:51 -05:00
xfs_dquot.h xfs: xfs_dquot prealloc throttling watermarks and low free space 2013-03-22 16:06:30 -05:00
xfs_dquot_item.c
xfs_dquot_item.h
xfs_error.c xfs: increase hexdump output in xfs_corruption_error 2013-04-21 14:48:41 -05:00
xfs_error.h
xfs_export.c fs: encode_fh: return FILEID_INVALID if invalid fid_type 2013-02-26 02:46:10 -05:00
xfs_export.h
xfs_extent_busy.c
xfs_extent_busy.h
xfs_extfree_item.c xfs: Don't reference the EFI after it is freed 2013-05-20 14:29:34 -05:00
xfs_extfree_item.h xfs: don't free EFIs before the EFDs are committed 2013-04-05 13:25:35 -05:00
xfs_file.c aio: don't include aio.h in sched.h 2013-05-07 20:16:25 -07:00
xfs_filestream.c
xfs_filestream.h
xfs_fs.h xfs: add fsgeom flag for v5 superblock support. 2013-05-30 12:57:25 -05:00
xfs_fsops.c xfs: Remove redundant error variable from xfs_growfs_data_private() 2013-06-17 17:43:04 -05:00
xfs_fsops.h
xfs_globals.c xfs: add background scanning to clear eofblocks inodes 2012-11-08 15:34:59 -06:00
xfs_ialloc.c xfs: Remove the left function variable from xfs_ialloc_get_rec() 2013-06-26 12:22:41 -05:00
xfs_ialloc.h xfs: convert buffer verifiers to an ops structure. 2012-11-15 21:35:12 -06:00
xfs_ialloc_btree.c xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
xfs_ialloc_btree.h xfs: add support for large btree blocks 2013-04-21 14:53:46 -05:00
xfs_icache.c xfs: add background scanning to clear eofblocks inodes 2012-11-08 15:34:59 -06:00
xfs_icache.h xfs: Remove dead function prototype xfs_sync_inode_grab() 2013-06-26 12:29:27 -05:00
xfs_inode.c xfs: xfs_ifree doesn't need to modify the inode buffer 2013-06-27 13:31:04 -05:00
xfs_inode.h xfs: add version 3 inode format with CRCs 2013-04-21 15:03:33 -05:00
xfs_inode_item.c xfs: add version 3 inode format with CRCs 2013-04-21 15:03:33 -05:00
xfs_inode_item.h xfs remove the XFS_TRANS_DEBUG routines 2012-12-17 16:29:00 -06:00
xfs_inum.h
xfs_ioctl.c xfs: fallback to vmalloc for large buffers in xfs_attrlist_by_handle 2013-05-07 18:56:38 -05:00
xfs_ioctl.h
xfs_ioctl32.c xfs: fallback to vmalloc for large buffers in xfs_compat_attrlist_by_handle 2013-05-07 19:00:10 -05:00
xfs_ioctl32.h
xfs_iomap.c xfs: don't use speculative prealloc for small files 2013-06-27 13:27:37 -05:00
xfs_iomap.h
xfs_iops.c xfs: return FIEMAP_EXTENT_UNKNOWN for delayed allocation extent 2013-06-19 14:18:32 -05:00
xfs_iops.h
xfs_itable.c xfs: add pluging for bulkstat readahead 2013-06-27 13:26:23 -05:00
xfs_itable.h
xfs_linux.h xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
xfs_log.c xfs: Introduce ordered log vector support 2013-06-27 13:32:08 -05:00
xfs_log.h xfs: Introduce ordered log vector support 2013-06-27 13:32:08 -05:00
xfs_log_cil.c xfs: Introduce ordered log vector support 2013-06-27 13:32:08 -05:00
xfs_log_priv.h xfs: Remove the obsolete XLOG_CIL_HARD_SPACE_LIMIT() macros 2013-04-16 13:18:33 -05:00
xfs_log_recover.c xfs: don't shutdown log recovery on validation errors 2013-06-14 15:29:31 -05:00
xfs_log_recover.h
xfs_message.c xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
xfs_message.h xfs: introduce CONFIG_XFS_WARN 2013-05-07 18:45:36 -05:00
xfs_mount.c xfs: Remove XFS_MOUNT_RETERR 2013-06-19 14:54:17 -05:00
xfs_mount.h xfs: Remove XFS_MOUNT_RETERR 2013-06-19 14:54:17 -05:00
xfs_mru_cache.c
xfs_mru_cache.h
xfs_qm.c xfs: rework dquot CRCs 2013-06-04 17:35:51 -05:00
xfs_qm.h xfs: add CRC checks for quota blocks 2013-04-21 14:58:22 -05:00
xfs_qm_bhv.c xfs: Remove boolean_t typedef completely. 2013-01-17 17:32:57 -06:00
xfs_qm_syscalls.c xfs: avoid nesting transactions in xfs_qm_scall_setqlim() 2013-05-21 13:57:05 -05:00
xfs_quota.h xfs: rework dquot CRCs 2013-06-04 17:35:51 -05:00
xfs_quota_priv.h
xfs_quotaops.c
xfs_rename.c
xfs_rtalloc.c xfs: uncached buffer reads need to return an error 2012-11-15 21:34:05 -06:00
xfs_rtalloc.h
xfs_sb.h xfs: implement extended feature masks 2013-04-27 13:05:18 -05:00
xfs_stats.c
xfs_stats.h
xfs_super.c xfs: Remove XFS_MOUNT_RETERR 2013-06-19 14:54:17 -05:00
xfs_super.h
xfs_symlink.c xfs: fix the symbolic link assert in xfs_ifree 2013-06-19 14:14:43 -05:00
xfs_symlink.h xfs: fix the symbolic link assert in xfs_ifree 2013-06-19 14:14:43 -05:00
xfs_sysctl.c xfs: Convert use of typedef ctl_table to struct ctl_table 2013-06-17 17:42:25 -05:00
xfs_sysctl.h xfs: add background scanning to clear eofblocks inodes 2012-11-08 15:34:59 -06:00
xfs_trace.c xfs: add CRCs to dir2/da node blocks 2013-04-27 12:33:38 -05:00
xfs_trace.h xfs: Introduce an ordered buffer item 2013-06-27 13:33:11 -05:00
xfs_trans.c xfs: refactor space log reservation for XFS_TRANS_ATTR_SET 2013-02-01 14:56:31 -06:00
xfs_trans.h xfs: Introduce an ordered buffer item 2013-06-27 13:33:11 -05:00
xfs_trans_ail.c xfs remove the XFS_TRANS_DEBUG routines 2012-12-17 16:29:00 -06:00
xfs_trans_buf.c xfs: Introduce an ordered buffer item 2013-06-27 13:33:11 -05:00
xfs_trans_dquot.c xfs: pass xfs_dquot to xfs_qm_adjust_dqlimits() instead of xfs_disk_dquot_t 2013-03-22 16:05:52 -05:00
xfs_trans_extfree.c
xfs_trans_inode.c xfs remove the XFS_TRANS_DEBUG routines 2012-12-17 16:29:00 -06:00
xfs_trans_priv.h
xfs_trans_space.h
xfs_types.h xfs: Remove boolean_t typedef completely. 2013-01-17 17:32:57 -06:00
xfs_utils.c
xfs_utils.h
xfs_vnode.h
xfs_vnodeops.c xfs: fix the symbolic link assert in xfs_ifree 2013-06-19 14:14:43 -05:00
xfs_vnodeops.h xfs: byte range granularity for XFS_IOC_ZERO_RANGE 2012-11-29 14:21:46 -06:00
xfs_xattr.c