WHATS_NEW

   1 Version 2.02.96 -
   2 ================================
   3   Better structure layout for device_info in dev_subsystem_name().
   4   Change message severity for creation of VG over uninitialised devices.
   5   Fix error path for failing toolcontext creation.
   6   Fix warn msg for thin pool chunk size and update man for chunksize (2.02.89).
   7
   8 Version 2.02.95 - 6th March 2012
   9 ================================
  10   If unspecified, adjust thin pool metadata and chunk size to fit into 128MB.
  11   Print just warning on thin pool check callback path for failing check.
  12   Always use 64bit arithmetic with VG extent_size expression.
  13   Validate udev structures in _insert_udev_dir().
  14   Take repeatable --major --minor with pvscan --cache instead of major:minor.
  15   Scan all devices for lvmetad if 'pvscan --cache' used without device list.
  16   Populate lvmcache from lvmetad before displaying PVs in pvscan. (2.02.94)
  17   Suppress incorrect -n pvscan warning now always displayed. (2.02.94)
  18
  19 Version 2.02.94 - 3rd March 2012
  20 ================================
  21   Add support to execute thin_check with each de/active of thin pool.
  22   Fix automatic estimation of metadata device size for thin pool.
  23   Test for alloc fail from _alloc_pv_segment() in _extend_pv().
  24   Check for alloc fail from get_segtype_from_string() in _lvcreate_params().
  25   Add _rimage as reserved suffix to lvm.8 man page.
  26   Improve error logging from mpath filter.
  27   Check for allocation failure in hold_lock() in clvmd.
  28   Use set_lv() (wipe initial 4KiB) for non zeroed thin volume.
  29   Allow cluster mirrors to handle the absence of the checkpoint lib (libSaCkpt).
  30   Revert free of allocated segtype in init segment error path (2.02.89).
  31   Test dm_hash_insert() failures in filter-persistent.c and fid_add_mda().
  32   Ensure clvmd message is always NUL-terminated after read.
  33   Add some close() and dev_close() error path backtraces.
  34   Set stdin/stdout/stderr to /dev/null for polldaemon.
  35   Limit the max size of processed clvmd message to ~8KB.
  36   Do not send uninitialised bytes in cluster error reply messages.
  37   Use unsigned type for bitmask instead of enum type for lvm properties.
  38   Add missing cleanup of excl_uuid hash on some exit paths of clvmd.
  39   Check for existence of vg_name in _format1/_pool_vg_read().
  40   Fix missing break in _format_pvsegs (2.02.92).
  41   Test seg pointer for non-null it in raid_target_percent error path.
  42   Check for errors in _init_tags() during config loading.
  43   Always check result of _set_vg_name() in lvcreate.
  44   Drop unused call to uname() during clvmd initialization.
  45   Test allocation result in sysfs filter creation.
  46   Limit sscanf parameters with buffer size in clvmd get_initial_state().
  47   Use const lv pointer for lv_is_active...() functions.
  48   Use same signed numbers in _mirrored_transient_status().
  49   Support 'pvscan --cache' to update lvmetad state from specific PVs.
  50   Provide new metadata daemon for testing with configure --enable-lvmetad .
  51   Integrate client-side lvmetad into build.
  52
  53 Version 2.02.93 - 23rd February 2012
  54 ====================================
  55   Require number of stripes to be greater than parity devices in higher RAID.
  56   Fix allocation code to allow replacement of single RAID 4/5/6 device.
  57   Check all tags and LV names are in a valid form in vg_validate.
  58   Add tmpfiles.d style configuration for lvm2 lock and run directory.
  59   Add configure --with-tmpfilesdir for dir holding volatile-file configuration.
  60   Allow 'lvconvert --repair' to operate on RAID 4/5/6.
  61   Fix build_parallel_areas_from_lv to account correctly for raid parity devices.
  62   Print message when faulty raid devices have been replaced.
  63
  64 Version 2.02.92 - 20th February 2012
  65 ====================================
  66   Read dmeventd monitoring config settings for every lvm command.
  67   For thin devices, initialize monitoring only for thin pools not thin volumes.
  68   Make conversion from a synced 'mirror' to 'raid1' not cause a full resync.
  69   Properly test buffer for unit check in units_to_bytes().
  70   Add configure --with-systemdsystemunitdir.
  71   Add check for allocation failure in _build_matcher().
  72   Add check for rimage name allocation failure in _raid_add_images().
  73   Add check for mda_copy failure in _text_pv_setup().
  74   Add check for _mirrored_init_target failure.
  75   Add free_orphan_vg.
  76   Skip pv/vg_set_fid processing if the fid is same.
  77   Check for foreach loop errors in _vg_read_orphans() (2.02.91).
  78   Clean error paths for format instance creation (2.02.91).
  79   Release vg in error path of _format1_vg_read() instead of just free().
  80   Report allocation failure for allocation of PV structure.
  81   Add clvmd init dependency on dlm service when running with new corosync.
  82
  83 Version 2.02.91 - 12th February 2012
  84 ====================================
  85   Remove PV-based format instances (which are no longer needed).
  86   Link all orphan PVs directly to a per-format global orphan VG.
  87   Refactor lvmcache around an internal API.
  88   Stop processing lvextend if trying to extend a mirror that is being recovered.
  89   Add pool_below_threshold() function to check thin pool percent status.
  90   Fix test for snap percent for failing merge when removing LV.
  91   Switch int to void return for str_list_del().
  92   Fix error path handling in _build_desc().
  93   Add range test for device number in _scan_proc_dev().
  94   Use signed long for sysconf() call in cmirrord.
  95   Do not write in front of log buffer in print_log().
  96   Add boundary test for number of mirror devs and logs.
  97   Check that whole locking_dir fits _lock_dir buffer in init_file_locking().
  98   Use list functions for label_exit().
  99   Ensure strncpy() function always ends with '\0'.
 100   Set status in _fsadm_cmd() for error path.
 101   Add missing deps for lvm2api for rebuild when lvm-internal is changed.
 102   Fix resource leaks for failing allocation of formats (lvm1/2,pool).
 103   Release allocated resources in error path for composite_filter_create().
 104   Do not use lstat() results when failed in _rm_link().
 105   Remove a "waiting for another thread" log message from dmeventd plugins.
 106
 107 Version 2.02.90 - 1st February 2012
 108 ===================================
 109   sync_local_dev_names before (re)activating mirror log for initialisation.
 110   Disable partial activation for thin LVs and LVs with all missing segments.
 111   Do not print warning for pv_min_size between 512KB and 2MB.
 112   Clean up systemd unit ordering and requirements.
 113   Fix lcov reports when srcdir != builddir.
 114   Allow ALLOC_NORMAL to track reserved extents for log and data on same PV.
 115   Automatically detect whether corosync clvmd needs to use confdb or cmap.
 116   Fix data% report for thin volume used as origin for non-thin snapshot.
 117
 118 Version 2.02.89 - 26th January 2012
 119 ===================================
 120   Add missing check for uname result in clvmd TEST processing.
 121   Fix memleak in target_version() error path (unsupported LIST_VERSIONS).
 122   Limit data_alignment and data_alignment_offset to 32bit values.
 123   Check for correctness of uint64 dev_size value in format_text.
 124   Thin pools have segment fields thin_count, zero, transaction_id.
 125   Add data_percent and metadata_percent for thin pools to lvs -v.
 126   Add data_lv & metadata_lv fields to lvs for thin pools.
 127   Add data_percent & pool_lv fields to lvs for thin volumes.
 128   Rename origin_only parm to use_layer for lv_info and use with thin LVs.
 129   Add lv_thin_pool_transaction_id to read the transaction_id value.
 130   Use {suspend,resume}_origin_only when up-converting RAID, as mirrors do.
 131   Always add RAID metadata LVs to deptree (even when origin_only is set).
 132   Change exclusive LV activation logic to try local node before remote nodes.
 133   Add CLVMD_FLAG_REMOTE to skip processing on local node.
 134   Prompt if request is made to remove a snapshot whose "Merge failed".
 135   Allow removal of an invalid snapshot that was to be merged on next activation.
 136   Don't allow a user to merge an invalid snapshot.
 137   Use m and M lv_attr to indicate that a snapshot merge failed in lvs.
 138   Differentiate between snapshot status of "Invalid" and "Merge failed".
 139   Report snapshot usage percent of origin volume when a snapshot is merging.
 140   Require global/lvdisplay_shows_full_device_path for (bogus) lvm1-style paths.
 141   Do not report linear segtype for non-striped targets.
 142   Record creation host & time for each LV and report as lv_time & lv_host.
 143   Make error message hit when preallocated memlock memory exceeded clearer.
 144   Use R lv_attr to indicate read-only activation of non-read-only device in lvs.
 145   Show read-only activation override in lvdisplay & add 4 to perms in -c.
 146   Add activation/read_only_volume_list to override LV permission in metadata.
 147   Give priority to emcpower devices with duplicate PVIDs.
 148   Add check for error in _adjust_policy_params() (lvextend --use-policies).
 149   Round specified percentages upwards (%LV, %VG...) when resizing LVs.
 150   Use dmeventd_lvm2_command in dmeventd plugins snapshot, raid, mirror.
 151   Add helper dmeventd_lvm2_command() to libdevmapper-event-lvm2 library.
 152   Update documentation for dmeventd.
 153   Remove unnecessary stat before opening device in dev_open_flags.
 154   Reduce number of lstat calls when selecting device alias.
 155   Add _dev_init to initialize common struct device members.
 156   Always zalloc struct device during initialization.
 157   Fix missing thread list manipulation protection in dmeventd.
 158   Do not derefence lv pointer in _percent_run() function before NULL check.
 159   Allow empty strings for description and creation_host config fields.
 160   Issue deprecation warning when removing last lvm1-format snapshot.
 161   Reinstate support for snapshot removal with lvm1 format. (2.02.86)
 162   Add policy-based automated repair of RAID logical volumes.
 163   Don't allow two images to be split and tracked from a RAID LV at one time.
 164   Don't allow size change of RAID LV that is tracking changes for a split image.
 165   Don't allow size change of RAID sub-LVs independently.
 166   Don't allow name change of RAID LV that is tracking changes for a split image.
 167   Do not allow users to change the name of RAID sub-LVs independently.
 168   Do not allow users to change permissions on RAID sub-LVs.
 169   Allow lvconvert to replace specified devices in a RAID array.
 170   Add activation/use_linear_target enabled by default.
 171   Use gcc warning options only with .c to .o compilation.
 172   Move y/n prompts to stderr and repeat if response has both 'n' and 'y'.
 173   Replace the unit testing framework with CUnit (--enable-testing).
 174   Fix dmeventd snapshot monitoring when multiple extensions were involved.
 175   Don't ignore configure --mandir and --infodir.
 176   Drop pool memory allocated within lv_has_target_type().
 177   Reduce stack allocation of some PATH_MAX sized char buffers.
 178   Unlock memory before writing metadata.
 179   Add query before removing snapshots when inactive snapshot origin is removed.
 180   Allow changing availability state of snapshots.
 181   Skip non-virtual snapshots for availability change for lvchange with vg name.
 182   Skip adjusting mirror region size unless mirror or raid.
 183   Reorder prompt conditions for removal of active volumes.
 184   Avoid 'mda inconsistency' by properly registering UNLABELLED_PV flag.(2.02.86)
 185   Fix --enable-static_link unless using --enable-dmeventd / --enable-udev_sync.
 186   Move gentoo MAKEDEV to /sbin in lvm2create_initrd.
 187   Add filter to avoid scan of device if it is part of active multipath.
 188   Add missing default $LVM_VG_NAME usage for snapshots.
 189   Avoid extent_count overflow with lvextend.
 190   Add missing lvrename mirrored log recursion in for_each_sub_lv.
 191   Improve lv_extend stack reporting.
 192   Increase virtual segment size instead of creating multiple segment list.
 193   Add last_seg(lv) internal function.
 194   Support empty string for log/prefix.
 195   Disallow mirrored logs for cluster mirrors. (2.02.72)
 196   Don't print char type[8] as a plain string in pvck PV type.
 197   Use vg memory pool implicitly for vg read.
 198   Always use vg memory pool for allocated lv segment.
 199   Remove extra 4kB buffer allocated on stack in print_log().
 200   Make move_lv_segment non-static function and use dm_list function.
 201   Pass exclusive LV locks to all nodes in the cluster.
 202   Improve lvcreate chunksize man page description.
 203   Improve man page style for lvcreate & lvs.
 204   Avoid recursive calls to dmeventd in its LVM plugins.
 205   Log dev name now returned to kernel for registering during cmirror CTR.
 206   Fix lv_info open_count test for disabled verify_udev_operations. (2.02.86)
 207   Simplify code for lvm worker thread in clvmd.
 208   Use pthread_barrier to synchronize clvmd threads at startup.
 209   Limit clvmd's thread size to 128KiB and ignore activation/reserved_stack.
 210   Reduce default preallocated stack size to 64KiB.
 211   Add check for access through NULL pointer when refresh_filter() fails.
 212   Use pthread condition for SINGLENODE lock implementation.
 213   Improve backtrace reporting for some dev_manager_ functions.
 214   Change message severity to log_warn when symlink creation fails.
 215   Add ability to convert mirror segtype to RAID1 segtype.
 216   Add ability to convert from linear to RAID1.
 217   Add ability to extend mirrors with '--nosync' option.
 218   Fix splitmirror LV names to maintain consistent state in a cluster.
 219   Apply appropriate udev flags when suspending/resuming mirror sub-LVs.
 220   Fix vgsplit to handle mirrored logs.
 221   Clarify multi-name device filter pattern matching explanation in lvm.conf.
 222   Introduce revert_lv for better pvmove cleanup.
 223   Replace incomplete pvmove activation failure recovery code with a message.
 224   Abort if _finish_pvmove suspend_lvs fails instead of cleaning up incompletely.
 225   Change suspend_lvs to call vg_revert internally.
 226   Change vg_revert to void and remove superfluous calls after failed vg_commit.
 227   Use execvp for CLVMD restart to preserve environment settings.
 228   Restart CLVMD with same cluster manager.
 229   Fix log_error() usage in raid and unknown segtype initialisation.
 230   Improve testing Makefile.
 231   Fix install_ocf make target when srcdir != builddir. (2.02.80)
 232   Support env vars LVM_CLVMD_BINARY and LVM_BINARY in clvmd.
 233   Fix restart of clvmd (preserve exlusive locks). (2.02.64)
 234   Add 'Volume Type' lv_attr characters for RAID and RAID_IMAGE.
 235   Add activation/retry_deactivation to lvm.conf to retry deactivation of an LV.
 236   Replace open_count check with holders/mounted_fs check on lvremove path.
 237   Disallow the creation of mirrors (mirror or raid1 segtype) with only one leg.
 238   Cleanup restart clvmd code (no memory allocation, debug print passed args).
 239   Add all exclusive locks to clvmd restart option args.
 240   Always send the whole clvmd packet header in refresh commands.
 241   Add missing error checks for some system calls in cmirrord.
 242   Add missing log_error() to lvresize command when fsadm tool fails.
 243   Add support for DM_DEV_DIR device path into fsadm script.
 244   Support different PATH setting for fsadm script testing.
 245   Surround all executed commands with quotes in fsadm script.
 246   Fix missing '$' in test for content of "$LVM" in fsadm script.
 247   Move debug message in exec_cmd after sync_local_dev_names.
 248   Fix clvmd processing of invalid request on local socket.
 249   Fix command line option decoding.
 250   Reset LV status when unlinking LV from VG.
 251   Fix overly-strict extent-count divisibility requirements for striped mirrors.
 252   Fix rounding direction in lvresize when reducing volume size.
 253   Fix possible overflow of size if %FREE or %VG is used.
 254   Fix vgchange activation of snapshot with virtual origin.
 255   Activate virtual snapshot origin exclusively (only on local node in cluster).
 256   Fix lv_mirror_count to handle mirrored stripes properly.
 257   Fix failure to down-convert a mirror to linear due to udev "dev open" conflict
 258   Fix mirrored log creation when PE size is small: use log_size >= region_size.
 259   Fix log size calculation when only a log is being added to a mirror.
 260   Add 7th lv_attr char to show the related kernel target.
 261   Terminate pv_attr field correctly. (2.02.86)
 262   Fix 'not not' typo in pvcreate man page.
 263   Improve man page style for fsadm, lvreduce, lvremove, lvrename & lvresize.
 264   Support break for vgchange and vgrefresh operation.
 265   Switch int to unsigned type for pvmetadatacopies for pv_create().
 266   Replace :space: with [\t ] for awk in vgimportclone (not widely supported).
 267   Begin using 64-bit status field flags.
 268   Detect sscanf recovering_region input error in cmirrord pull_state().
 269   Fix error path bitmap leak in cmirrord import_checkpoint().
 270   Log unlink() error in cmirrord remove_lockfile().
 271   Remove incorrect requirement for -j or -m from lvchange error message.
 272   Fix unsafe table load when splitting off smaller mirror from a larger one.
 273   Use size_t return type for text_vg_export_raw() and export_vg_to_buffer().
 274   Add configure --enable-lvmetad for building the (experimental) LVMetaD.
 275   Fix resource leak when strdup fails in _get_device_status() (2.02.85).
 276   Directly allocate buffer memory in a pvck scan instead of using a mempool.
 277   Add configure --with-thin for segtypes "thin" and "thin_pool".
 278   Fix raid shared lib segtype registration (2.02.87).
 279
 280 Version 2.02.88 - 19th August 2011
 281 ==================================
 282   Remove incorrect 'Breaking' error message from allocation code. (2.02.87)
 283   Add lvconvert --merge support for raid1 devices split with --trackchanges.
 284   Support lvconvert of -m1 raid1 devices to a higher number.
 285   Add --trackchanges support to lvconvert --splitmirrors option for raid1.
 286   Support splitting off a single raid1 rimage in lvconvert --splitmirrors.
 287   Use sync_local_dev_names when reducing number of raid rimages in lvconvert.
 288   Add -V as short form of --virtualsize in lvcreate.
 289   Fix make clean not to remove Makefile.  (2.02.87)
 290
 291 Version 2.02.87 - 12th August 2011
 292 ==================================
 293   Fix make distclean to remove stray dmeventd and exported symbols files.
 294   Add global/detect_internal_vg_cache_corruption to lvm.conf.
 295   Use memory pool locking to check for corruption of internal VG structs.
 296   Cache and share generated VG structs.
 297   Fix possible format instance memory leaks and premature releases in _vg_read.
 298   Suppress locking error messages in monitoring init scripts.
 299   If pipe in clvmd fails return busy instead of using uninitialised descriptors.
 300   Add ability to reduce the number of mirrors in raid1 arrays to lvconvert.
 301   Add dmeventd plugin for raid.
 302   Replace free_vg with release_vg and move it to vg.c.
 303   Remove INCONSISTENT_VG flag from the code.
 304   Remove lock from cache in _lock_vol even if unlock fails.
 305   Initialise clvmd locks before lvm context to avoid open descriptor leaks.
 306   Remove obsolete gulm clvmd cluster locking support.
 307   Suppress low-level locking errors and warnings while using --sysinit.
 308   Remove unused inconsistent_seqno variable in _vg_read().
 309   Remove meaningless const type qualifiers on cast type.
 310   Add test for fcntl error in singlenode client code.
 311   Remove --force option from lvrename manpage.
 312   Add global/mirror_segtype_default to pick md raid or dm mirror as default.
 313   Add configure --with-raid for new segtype 'raid' for MD RAID 1/4/5/6 support.
 314   Change DEFAULT_UDEV_SYNC to 1 so udev_sync is used if there is no config file.
 315   Add systemd unit file to provide lvm2 monitoring.
 316   Compare file size (as well as timestamp) to detect changed config file.
 317
 318 Version 2.02.86 - 8th July 2011
 319 ===============================
 320   Remove unnecessary warning in pvcreate for MD linear devices.
 321   Move snapshot removal activation logic into lib/activate.
 322   Cope with a PV only discovered missing when creating deptree.
 323   Abort operation if dm_tree_node_add_target_area fails.
 324   Add activation/checks to lvm.conf to perform additional ioctl validation.
 325   Always preload on suspend, even if no metadata changed (lvchange --refresh).
 326   When suspending, automatically preload newly-visible existing LVs.
 327   Teardown any stray devices with $COMMON_PREFIX during test runs.
 328   Reinstate correct permissions when creating mirrors. [2.02.85]
 329   Append 'm' attribute to pv_attr for missing PVs.
 330   Annotate CLVMD_CMD_SYNC_NAMES in decode_cmd.
 331   Remove enforcement of udev verification when using non-standard /dev location.
 332   Keep an exclusive mirror non-clustered if reloaded e.g. during conversion.
 333   Reject allocation if number of extents is not divisible by area count.
 334   Fix cluster mirror creation to work with new mirror allocation algorithm.
 335   Ignore activation/verify_udev_operations if dm kernel driver vsn < 4.18.
 336   Add activation/verify_udev_operations to lvm.conf, disabled by default.
 337   Call vg_mark_partial_lvs() before VG structure is returned from the cache.
 338   Remove unused internal flag ACTIVATE_EXCL from the code.
 339   Remove useless test of ACTIVATE_EXCL in lv_add_mirrors() clustered code path.
 340   Add lv_activate_opts structure for activation (replacing activation flags).
 341   Ignore inconsistent pre-commit metadata on MISSING_PV devs while activating.
 342   Add proper udev library context initialization and finalization to liblvm.
 343   Fix last snapshot removal to avoid table reload while a device is suspended.
 344   Use dm_get_suspended_counter in replacement critical_section logic.
 345   Downgrade critical_section errors to debug level until it is moved to libdm.
 346   Fix ignored background polling default in vgchange -ay.
 347   Fix pvmove activation sequences to avoid trapped I/O with multiple LVs.
 348   Annotate critical section debug messages.
 349   Fix reduction of mirrors with striped segments to always align to stripe size.
 350   Validate mirror segments size.
 351   Include lvmetad development code in tree.
 352   Fix extent rounding for striped volumes never to reduce more than requested.
 353   Fix create_temp_name to replace any '/' found in the hostname with '?'.
 354   Always use append to file in lvmdump. selinux policy may ban file truncation.
 355   Propagate test mode to clvmd to skip activation and changes to held locks.
 356   Defer writing PV labels until vg_write.
 357   Store label_sector only in struct physical_volume.
 358   Permit --available with lvcreate so non-snapshot LVs need not be activated.
 359   Report sector containing label in verbose message.
 360   Clarify error message when unable to convert an LV into a snapshot of an LV.
 361   Add and use dev_open_readonly and variations.
 362   Do not log a superfluous stack message when the lv is properly processed.
 363   Do not issue an error message when unable to remove .cache on read-only fs.
 364   Avoid memlock size mismatch by preallocating stdio line buffers.
 365   Rewrite vgreduce --removemissing --force to share lvconvert code.
 366   Reorganize lvconvert --repair code to allow reuse.
 367
 368 Version 2.02.85 - 29th April 2011
 369 =================================
 370   Add new obtain_device_list_from_udev setting to lvm.conf.
 371   Obtain device list from udev by default if LVM2 is compiled with udev support.
 372   Add test for vgimportclone and querying of vgnames with duplicate pvs.
 373   Avoid use of released memory when duplicate PV is found.
 374   Add "devices/issue_discards" to lvm.conf.
 375   Issue discards on lvremove and lvreduce etc. if enabled and supported.
 376   Add seg_pe_ranges and devices fields to liblvm.
 377   Fix incorrect tests for dm_snprintf() failure.
 378   Fix some unmatching sign comparation gcc warnings in the code.
 379   Support lv_extend() on empty LVs.
 380   Avoid regenerating cache content when exported VG buffer is unchanged.
 381   Extend the set of memory regions that are not locked to memory.
 382   Workaround some problems when compiled for valgrind memcheck.
 383   Support controlled quit of the lvm_thread_fn function in clvmd.
 384   Fix reading of unallocated memory in lvm1 format import function.
 385   Replace several strncmp() calls with id_equal().
 386   Fix lvmcache_info transfer to orphan_vginfo in _lvmcache_update_vgname().
 387   Fix -Wold-style-definition gcc warnings.
 388   Rename MIRROR_NOTSYNCED to LV_NOTSYNCED.
 389   Fix _move_lv_segments to handle empty LVs.
 390   Fixes for lvconvert (including --repair) of temporary mirror stacks.
 391   Avoid potential loop when removing mirror images.
 392   Fix mirror removal always to take account of preferences as to which.
 393   Fix MIRRORED flag usage.
 394   Remove error messages issued by device_is_usable when run as non-root.
 395   Add missing \0 for grown debug object in _bitset_with_random_bits().
 396   Fix allocation of system_id buffer in volume_group structure.
 397   Fix readlink usage inside get_primary_dev().
 398   Use format instance mempool where possible and adequate.
 399   Call destroy_instance for any PVs found in VG structure during vg_free call.
 400   Add new free_pv_fid fn and use it throughout to free all attached fids.
 401   Use only vg_set_fid and new pv_set_fid fn to assign the format instance.
 402   Make create_text_context fn static and move it inside create_instance fn.
 403   Add mem and ref_count fields to struct format_instance for own mempool use.
 404   Use new alloc_fid fn for common format instance initialisation.
 405   Optimise _get_token() and _eat_space().
 406   Add _lv_postorder_vg() to improve efficiency for all LVs in VG.
 407   Add gdbinit script for debugging.
 408   Use hash tables to speedup string search in vg_validate().
 409   Refactor allocation of VG structure adding alloc_vg().
 410   Avoid possible endless loop in _free_vginfo when 4 or more VGs have same name.
 411   Use empty string instead of /dev// for LV path when there's no VG.
 412   Don't allocate unused VG mempool in _pvsegs_sub_single.
 413   Do not send uninitialised bytes in local clvmd messages.
 414   Support --help option for clvmd and return error for unknown option.
 415   Avoid reading freed memory when printing LV segment type.
 416   Fix syslog initialisation in clvmd to respect lvm.conf setting.
 417   Fix possible overflow in maximum stripe size and physical extent size.
 418   Improve pvremove error message when PV belongs to a VG.
 419   Extend normal policy to allow mirror logs on same PVs as images if necessary.
 420   Improve cling policy to recognise PVs already used during the transaction.
 421   Improve normal allocation algorithm to include clinging to existing areas.
 422   Add allocation/maximise_cling & mirror_logs_require_separate_pvs to lvm.conf.
 423   Adapt metadata balancing code to work with metadata handling changes.
 424   Add old_id field to physical_volume and fix pvchange -u for recent changes.
 425   Allow pvresize on a PV with two metadata areas.
 426   Change pvcreate to use new metadata handling interface.
 427   Restructure existing pv_setup and pv_write and add pv_initialise.
 428   Add internal interface to support adding and removing metadata areas.
 429   Allow internal indexing of metadata areas (PV id + mda order).
 430   Generalise internal format_instance infrastrusture for PV and VG use.
 431   Handle decimal digits with --units instead of ignoring them silently.
 432   Fix remaining warnings and compile with -Wpointer-arith.
 433   Fix gcc warnings for unused variables and const casts.
 434   Add stack backtraces for error paths in process_each_lv().
 435   Temporarily suppress error from calling yes_no_prompt while locks are held.
 436   Replace void* with char* arithmetic in _text_write, _text_read & send_message.
 437   Fix compilation without DEVMAPPER_SUPPORT.
 438   Remove fs_unlock() from lv_suspend error path.
 439   Allow memory to stay locked between leaving and re-entering critical sections.
 440   Rename memlock to critical_section throughout.
 441   Make pv_min_size configurable and increase to 2048KB to exclude floppy drives.
 442   Add find_config_tree_int64 to read 64-bit ints from config.
 443   Ensure resuming exclusive cluster mirror continues to use local mirror target.
 444   Clear temporary postorder LV status flags to allow re-use with same LV struct.
 445   Remove invalid snapshot umount mesg which floods syslog from dmeventd plugin.
 446   Add extended examples to pvmove man page.
 447   Support LVM_TEST_DEVDIR env var for private /dev during testing.
 448
 449 Version 2.02.84 - 9th February 2011
 450 ===================================
 451   Fix CRC32 calculation on big endian CPU (2.02.75).
 452
 453 Version 2.02.83 - 4th February 2011
 454 ===================================
 455   Allow exclusive activation of snapshots in a cluster.
 456   Leave EX lock unchanged when suspending a device in clvmd.
 457   Use sync_dev_names in unlock_vg macro for cluster-wide dev name sync.
 458   Fix fs operation stack handling when multiple operations on same device.
 459   Increase hash table size to 1024 lv names and 64 pv uuids.
 460   Remove fs_unlock() from lv_resume path.
 461   Fix wipe size when setting up mda.
 462   Remove unneeded checks for open_count in lv_info().
 463   Synchronize with udev before checking open_count in lv_info().
 464   Allow CLVMD_CMD_SYNC_NAMES to be propagated around the cluster if requested.
 465   Add "dmsetup ls --tree" output to lvmdump.
 466   Fix udev synchronization with no-locking --sysinit (2.02.80).
 467   Improve man page style consistency for pvcreate, pvremove, pvresize, pvscan.
 468   Avoid rebuilding of uuid validation table.
 469   Improve lvcreate error text from insufficient "extents" to "free space".
 470   Always use O_DIRECT when opening block devices to check for partitioning.
 471
 472 Version 2.02.82 - 24th January 2011
 473 ===================================
 474   Bring lvscan man page up-to-date.
 475   Fix lvchange --test to exit cleanly.
 476   Add change_tag to toollib.
 477   Allow multiple pvchange command line options to be specified together.
 478   Do not fail pvmove polling if another process cleaned up first.
 479   Avoid clvmd incrementing dlm lockspace reference count more than once.
 480   Add -f (don't fork) option to clvmd and fix clvmd -d<num> description.
 481
 482 Version 2.02.81 - 17th January 2011
 483 ===================================
 484   Do not scan devices in dev_reset_error_count().
 485   Skip unnecessary LOCK_NULL unlock call during volume deactivation.
 486   Skip fs_unlock when calling exec_cmd within activation code (for modprobe).
 487   Extend exec_cmd params to specify when device sync (fs_unlock) is needed.
 488   Replace fs_unlock by sync_local_dev_names to notify local clvmd. (2.02.80)
 489   Introduce sync_local_dev_names and CLVMD_CMD_SYNC_NAMES to issue fs_unlock.
 490   Accept fusion fio in device type filter.
 491   Add ability to convert mirror log type from disk to mirrored.
 492
 493 Version 2.02.80 - 10th January 2011
 494 ===================================
 495   Use same dm cookie for consecutive dm ops in same VG to reduce udev waits.
 496   Speed up command processing by caching resolved config tree.
 497   Pass config_tree to renamed function import_vg_from_config_tree().
 498   Detect NULL handle in get_property().
 499   Fix superfluous /usr in ocf_scriptdir instalation path.
 500   Add --with-ocfdir configurable option.
 501   Add aclocal.m4 (for pkgconfig).
 502   Fix memory leak in persistent filter creation error path.
 503   Check for errors setting up dm_task struct in _setup_task().
 504   Fail polldaemon creation when lvmcache_init() fails.
 505   Return PERCENT_INVALID for errors in _copy_percent() and _snap_percent().
 506   Remove some unused variables.
 507   Improve general lvconvert man page description.
 508   Return 0 from cmirrord initscript 'start' if daemon is already running.
 509   Fix wrongly paired unlocking of VG_GLOBAL in pvchange. (2.02.66)
 510   Add backtraces for backup and backup_remove fail paths.
 511   Detect errors from dm_task_set calls in _get_device_info (dmeventd).
 512   Add backtraces for archive and backup_locally in check_current_backup().
 513   Fix memory leak in debug mode of restart_clvmd() error path.
 514   Log error message for pthread_join() failure in clvmd.
 515
 516 Version 2.02.79 - 20th December 2010
 517 ====================================
 518   Remove some unused variables.
 519   Add missing test for reallocation error in _find_parallel_space().
 520   Add checks for allocation errors in config node cloning.
 521   Fix error path if regex engine cannot be created in _build_matcher().
 522   Use char* arithmetic in target_version(), _process_all() & _targets().
 523   Fixing const cast gcc warnings in the code.
 524   Check read() and close() results in _get_cmdline().
 525   Add const for struct config_node usage.
 526   Fix NULL pointer check in error path in clvmd do_command(). (2.02.78)
 527   Fix device.c #include to ensure 64-bit fopen64 use. (2.02.51)
 528   Add copy_percent and snap_percent to liblvm.
 529   Enhance vg_validate to ensure integrity of LV and PV structs referenced.
 530   Enhance vg_validate to check composition of pvmove LVs.
 531   Create /var/run/lvm directory during clvmd initialisation if missing.
 532   Use new dm_prepare_selinux_context instead of dm_set_selinux_context.
 533   Avoid revalidating the label cache immediately after scanning.
 534   Support scanning for a single VG in independent mdas.
 535   Don't skip full scan when independent mdas are present even if memlock is set.
 536   Set cmd->independent_metadata_areas if metadata/dirs or disk_areas in use.
 537   Cope better with an undefined target_percent operation in _percent_run.
 538   Avoid writing to freed memory in vg_release and rename to free_vg.  (2.02.78)
 539
 540 Version 2.02.78 - 6th December 2010
 541 ===================================
 542   Abort if segment tag allocation fails in pool format _add_stripe_seg.
 543   Abort in _mirrored_transient_status if referenced log/image LV is not active.
 544   Add backtraces for dev_set() and dev_close_immediate() errors in set_lv().
 545   Log any unlink() error in clvmd remove_lockfile().
 546   Log any pipe write() or close() errors in clvmd child_init_signal().
 547   Detect if orphan vginfo was lost from cache before _lvmcache_update_vgname().
 548   Do a full rescan if some device is missing in lvm1 format read_pvs_in_vg.
 549   Add missing check that dm_pool_create succeeded in write_config_node().
 550   Use dm_snprintf in clvmd-command.c to ensure an overlong buffer is truncated.
 551   Don't write to buffer if its reallocation failed in clvmd do_command().
 552   Switch from float to fixed point percentage handling.
 553   Avoid misleading missing PV warnings in vgextend --restoremissing.
 554   Fix memory leak when VG allocation policy in metadata is invalid.
 555   Ignore unrecognised allocation policy found in metadata instead of aborting.
 556   Factor out tag printing into _out_tags and avoid leaking string buffer.
 557   Remove some unused variables & assignments.
 558   Add missing vg_release calls in _vg_read_by_vgid.
 559   Fix debug logging of derived flag LCK_CACHE in clvmd.
 560   Fix test for no system_dir in _init_backup().
 561   Disallow lvconvert ops that both allocate & free supplied PEs in a single cmd.
 562   Fix liblvm seg_size to give bytes not sectors.
 563   Add functions to look up LV/PV by name/uuid to liblvm.
 564   Free cmd_context if fallback to LVM1 fails in lvm2_main().
 565   Free device name buffer in dmsetup parse_loop_device_name() error paths.
 566   Close format lib if init_format_fn fails in _init_formats().
 567   Don't leave /proc/mounts open after dmeventd snapshot event processing.
 568   Fix out-of-scope arg_vgnames use in process_each_lv().
 569   Remove incorrect dm_task_destroy(NULL) from _node_clear_table() error path.
 570   Add missing closedir in _rm_blks after removing stray LVM1 VG files.
 571   Suppress 'No PV label' message when removing several PVs without mdas.
 572   Fix default /etc/lvm permissions to be 0755. (2.02.66)
 573
 574 Version 2.02.77 - 22nd November 2010
 575 ====================================
 576   Allocate a pool for dummy VG in _pvsegs_sub_single.
 577   Add PV and LV segment types and functions to liblvm.
 578   Add set_property functions to liblvm.
 579   Remove tag length restriction and allow / = ! : # & characters.
 580   Support repetition of --addtag and --deltag arguments.
 581   Add infrastructure for specific cmdline arguments to be repeated in groups.
 582   Split the_args cmdline arguments and values into arg_props and arg_values.
 583   Fix fsadm no longer to require '-f' to resize an unmounted filesystem.
 584   Fix fsadm to detect mounted filesystems on older systems. (2.0.75)
 585   Extend cling allocation policy to recognise PV tags (cling_by_tags).
 586   Add allocation/cling_tag_list to lvm.conf.
 587   Regenerate configure with 'autoreconf' for --enable-ocf. (2.02.76)
 588
 589 Version 2.02.76 - 8th November 2010
 590 ===================================
 591   Clarify error messages when activation fails due to activation filter use.
 592   Add pacemaker script VolumeGroup.ocf with configure --enable-ocf.
 593   Import make.tmpl into include/ Makefile.
 594   Fix handling of online filesystem resize (using new fsadm return code).
 595   Add DIAGNOSTICS section to fsadm man page.
 596   Modify fsadm to return different status code for check of mounted filesystem.
 597   Update VG metadata only once in vgchange when making multiple changes.
 598   Allow independent vgchange arguments to be used together.
 599   Automatically unmount invalidated snapshots in dmeventd.
 600   Suppress some superfluous messages from clang static analysis.
 601   Fix a deadlock caused by double close in clvmd.
 602   Fix NULL pointer dereference on too-large MDA error path in _vg_read_raw_area.
 603   Use static for internal _align_chunk() and _new_chunk() from pool-fast.c.
 604   Fix vgchange to process -a, --refresh, --monitor and --poll like lvchange.
 605   Add lvm2app functions to query any pv, vg, or lv property / report field.
 606
 607 Version 2.02.75 - 25th October 2010
 608 ===================================
 609   Annotate more variables and parameters as const.
 610   Fix missing variable initialization in cluster_send() function from cmirrord.
 611   Fix pointer for VG name in _pv_resize_single error code path.
 612   Fix warning for changed alignment requirements for dmeventd read/write func.
 613   Add global/metadata_read_only to use unrepaired metadata in read-only cmds.
 614   Don't take write lock in vgchange --refresh, --poll or --monitor.
 615   Skip dm devices in scan if they contain only error targets or are empty.
 616   Fix strict-aliasing compile warning in partition table scanning.
 617   Fix pthread mutex usage deadlock in clvmd.
 618   Automatically extend snapshots with dmeventd according to policy in lvm.conf.
 619   Add activation/snapshot_autoextend_threshold/percent to lvm.conf.
 620   Fix liblvm2cmd link order to support --as-needed.
 621   Remove dependency on libm by replacing floor() by an integer-based algorithm.
 622   Fix hang when repairing a mirrored-log that had both devs fail.
 623   Convey need for snapshot-merge target in lvconvert error message and man page.
 624   Add devices/disable_after_error_count config to limit access to failing devs.
 625   Give correct error message when creating a too-small snapshot.
 626   Implement vgextend --restoremissing to reinstate missing devs that return.
 627   Make lvconvert respect --yes and --force when converting an inactive log.
 628   Refactor and add 'get' functions for lv properties/fields.
 629   Update script for fsadm testing.
 630   Better support of noninteractive shell execution of fsadm.
 631   Fix usage of --yes flag for ReiserFS resize in fsadm.
 632   Fix detection of mounted filesystems for fsadm when udev is used.
 633   Fix assignment of default value to LVM variable in fsadm.
 634   Fix support for --yes flag for fsadm.
 635   Do not execute lvresize from fsadm --dry-run.
 636   Fix fsadm return error code from user's break action.
 637   Allow CC to be overridden at build time (for 'scan-build make').
 638   Rename 'flags' to 'status' in struct metadata_area.
 639   Avoid segfault by limiting partial mode for lvm1 metadata. (2.02.74)
 640   Use dm_zalloc and dm_pool_zalloc throughout.
 641   Add pv_get_property and create generic internal _get_property function.
 642   Add 'get' functions for pv and vg properties/fields.
 643   Make generic GET_*_PROPERTY_FN macros with secondary macro for vg, pv & lv.
 644   Add tags_format_and_copy() common function and call from _tags_disp.
 645   Add id_format_and_copy() common function and call from _uuid_disp.
 646   Refactor report.c '*_disp' functions to call supporting functions.
 647   Move parts of metadata*.[ch] into new {pv|vg|lv}.[ch] files.
 648   Fix vg_read memory leak with directory-based metadata.
 649   Fix memory leak of config_tree in reinitialization code path.
 650   Fix pool destruction order in dmeventd_lvm2_exit() to avoid leak debug mesg.
 651   Read whole /proc/self/maps file before working with maps entries.
 652   Speed up unquoting of quoted double quotes and backslashes.
 653   Speed up CRC32 calculations by using a larger lookup table.
 654
 655 Version 2.02.74 - 24th September 2010
 656 =====================================
 657   Allow : and @ to be escaped with \ in device names of PVs.
 658   Replace alloca with dm_malloc in _aligned_io to avoid stack corruption.
 659   Fix partial mode operations for lvm1 metadata format.
 660   Track recursive filter iteration to avoid refreshing while in use. (2.02.56)
 661   Revert to old glibc vsnprintf behaviour in emit_to_buffer() to catch overflow.
 662   Allocate buffer for metadata tags dynamically to remove 4k limit.
 663   Add random suffix to archive file names to prevent races when being created.
 664   Reinitialize archive and backup handling on toolcontext refresh.
 665   Make poll_mirror_progress report PROGRESS_CHECK_FAILED if LV is not a mirror.
 666   Like mirrors, don't scan origins if ignore_suspended_devices() is set.
 667   Fix return type qualifier to avoid compiler warning. (2.02.69)
 668   Automatically generate LSB Requires-Start for clvmd init script.
 669   Fix return code of pvmove --abort PV.
 670   Fix pvmove --abort to remove even for empty pvmove LV.
 671   Add configure --with-default-data-alignment.
 672   Update heuristic used for default and detected data alignment.
 673   Add "devices/default_data_alignment" to lvm.conf.
 674   Add implementation for simple numeric 'get' property functions.
 675   Define GET_NUM_PROPERTY_FN macro to simplify numeric property 'get' function
 676   Add properties.[ch] to lib/report using columns.h.
 677   Add macro definitions to report infrastructure for character array length.
 678   Remove explicit double quotes from columns.h 'id' entries.
 679   Add 'flags' field to columns.h and define FIELD_MODIFIABLE.
 680   Add vg_mda_size and vg_mda_free functions.
 681   Simplify MD/swap signature detection in pvcreate and allow aborting.
 682   Allow --yes to be used without --force mode.
 683   Fix file descriptor leak in swap signature detection error path.
 684   Detect and allow abort in pvcreate if LUKS signature is detected.
 685   Always mask lock flags correctly when checking for LCK_WRITE.
 686
 687 Version 2.02.73 - 18th August 2010
 688 ==================================
 689   Fix potential for corruption during cluster mirror device failure.
 690   Use 'SINGLENODE' instead of 'dead' in clvmd singlenode messages.
 691   Ignore snapshots when performing mirror recovery beneath an origin.
 692   Pass LCK_ORIGIN_ONLY flag around cluster.
 693   Add suspend_lv_origin and resume_lv_origin using LCK_ORIGIN_ONLY.
 694   Allow internal suspend and resume of origin without its snapshots.
 695   Fix dev_manager_transient to access -real device not snapshot-origin.
 696   Monitor origin -real device below snapshot instead of overlay device.
 697   Don't really change monitoring status when in test mode.
 698   Fix some exit statuses when starting/stopping monitoring fails.
 699   Enable snapshot monitoring by default when dmeventd is enabled.
 700   Move cloned libdevmapper-event client code from segments into lib/activate.
 701   Fix 'lvconvert --splitmirrors' in cluster operation.
 702   Fix clvmd init script exit code to return 4 when executed as non-root user.
 703   Change default alignment of pe_start to 1MB.
 704   Add --norestorefile option to pvcreate.
 705   Require --restorefile when using pvcreate --uuid.
 706   Recognise and give preference to md device partitions (blkext major).
 707   Never scan internal LVM devices.
 708   Don't ignore user-specified PVs in split-mirror operations. (2.02.71)
 709   Fix data corruption bug in cluster mirrors.
 710   Require logical volume(s) to be explicitly named for lvconvert --merge.
 711   Avoid changing aligned pe_start as a side-effect of very verbose logging.
 712   Use built-in rule for device aliases: block/ < dm- < disk/ < mapper/ < other.
 713   Fix const warning in dev_manager_info() and _dev_manager_lv_rmnodes().
 714   Fix const warning in archive_file structure from archive.c.
 715   Clean generated files .exported_symbols_generated, example.conf for distclean.
 716   Handle failure of all mirrored log devices and all but one mirror leg.
 717   Disallow 'mirrored' log type for cluster mirrors.
 718   Do not use VPATH in include/Makefile.
 719   Fix exported_symbols generation to use standard compiler arguments.
 720   Use #include <> not "" in lvm2app.h which gets installed on the system.
 721   Make lib and liblvm.device-mapper wait for include file generation.
 722   Fix configure to supply DEFAULT_RUN_DIR to Makefiles.
 723   Fix allocation of wrong number of mirror logs with 'remove' fault policy.
 724
 725 Version 2.02.72 - 28th July 2010  [CVE-2010-2526]
 726 =================================================
 727   Change clvmd to communicate with lvm2 via a socket in /var/run/lvm.
 728   Return controlled error if clvmd is run by non-root user.
 729   Add configure --default-run-dir for /var/run/lvm.
 730   Never use clvmd singlenode unless explicitly requested with -Isinglenode.
 731
 732 Version 2.02.71 - 28th July 2010
 733 ================================
 734   Document LVM fault handling in doc/lvm_fault_handling.txt.
 735   Make vgck warn about missing PVs.
 736   Clarify help text for vg_mda_count.
 737   Check if cluster log daemon is running before allowing cmirror create.
 738   Add unit-tests dir.
 739   Add configure --enable-testing and reports and report-generators dirs.
 740   Correct LV list order used by lvconvert when splitting a mirror.
 741   Check if LV with specified name already exists when splitting a mirror.
 742   Fix suspend/resume logic for LVs resulting from splitting a mirror.
 743   Update pvcreate, {pv|vg}change, and lvm.conf man pages about metadataignore.
 744   Switch cmirrord and clvmd to use dm_create_lockfile.
 745   Allow clvmd pidfile to be configurable.
 746   Update comments about memory handling in lvm2app.h.
 747   Add more verbose messages while checking volume_list and hosttags settings.
 748   Add log_error when strdup fails in {vg|lv}_change_tag().
 749   Remove unnecessary includes in liblvm files.
 750   Use __attribute__ consistently throughout.
 751   Fix redundant declarations and always compile with -Wredundant-decls.
 752   Fix possible hang when all mirror images of a mirrored log fail.
 753   Pass metadataignore to pv_create, pv_setup, _mda_setup, and add_mda.
 754   Init mda->list in mda_copy.
 755   Do not log backtrace in valid _lv_resume() code path.
 756   Cleanup help strings in configure.in.
 757   Prompt if metadataignore with vgextend or pvchange would adjust vg_mda_copies.
 758   Adjust vg_mda_copies if metadataignore given with vgextend or pvchange.
 759   Adjust auto-metadata repair and caching logic to try to cope with empty mdas.
 760
 761 Version 2.02.70 - 6th July 2010
 762 ===============================
 763   Remove log directly if all mirror images of a mirrored log fail.
 764   Randomly select which mdas to use or ignore.
 765   Add some missing standard configure.in checks.
 766   Add printf format attributes to yes_no_prompt and fix a caller.
 767   Always pass unsuspended dm devices through persistent filter to other filters.
 768   Move test for suspended dm devices ahead of other filters.
 769   Fix another segfault in clvmd -R if no response from daemon. (2.02.68)
 770   Remove superfluous suspended device counter from clvmd.
 771   Fix lvm shell crash when input is entirely whitespace.
 772   Update partial mode warning message.
 773   Preserve memlock balance in clvmd when activation triggers a resume.
 774   Restore the removemissing behaviour of lvconvert --repair --use-policies.
 775
 776 Version 2.02.69 - 30th June 2010
 777 ================================
 778   Fix vgremove to allow removal of VG with missing PVs. (2.02.52)
 779   Add metadata/vgmetadatacopies to lvm.conf.
 780   Add --metadataignore to pvcreate and vgextend.
 781   Add vg_mda_copies, pv_mda_used_count and vg_mda_used_count to reports.
 782   Describe --vgmetadatacopies in lvm.conf and other man pages.
 783   Add --[vg]metadatacopies to select number of mdas to use in a VG.
 784   Make the metadata ignore bit control read/write metadata areas in a PV.
 785   Add pvchange --metadataignore to set or clear a metadata ignore bit.
 786   Refactor metadata code to prepare for --metadataignore / --vgmetadatacopies.
 787   Ensure region_size of mirrored log does not exceed its full size.
 788   Generate liblvm2app exported symbols from header file.
 789   Preload libc locale messages to prevent reading it in memory locked state.
 790   Fix handling of simultaneous mirror image and mirrored log image failure.
 791
 792 Version 2.02.68 - 23rd June 2010
 793 ================================
 794   Fix clvmd initscript status to print only active clustered LVs.
 795   Add lv_path to reports to offer full /dev pathname.
 796   Fix typo in warning message about missing device with allocated data areas.
 797   Add device name and offset to raw_read_mda_header error messages.
 798   Honour log argument when down-converting stacked mirror.
 799   Sleep to workaround clvmd -S race: socket closed early and server drops cmd.
 800   Use early udev synchronisation and update of dev nodes for clustered mirrors.
 801   Remove incorrect inclusion of kdev_t.h from cmirrord/functions.h.
 802   Add man pages for lvmconf and non-existent lvmsadc and lvmsar tools.
 803   Exit successfully when using -o help (but not -o +help) with LVM reports.
 804   Do not use internal DLM lock definitions in generic LVM2 clvmd code.
 805   Add --force, --nofsck and --resizefs to lvresize/extend/reduce man pages.
 806   Fix lvm2cmd example in documentation.
 807   Allow use of lvm2app and lvm2cmd headers in C++ code.
 808   Remove unused #includes from clvmd files and introduce clvmd-common.h.
 809   Move common inclusions to clvmd-common.h.
 810   Use #include "" for libdevmapper.h and configure.h throughout tree.
 811   Fix LVM_PATH expansion when exec_prefix=NONE. (2.02.67)
 812   Fix segfault in clvmd -R if no response from daemon received.
 813
 814 Version 2.02.67 - 4th June 2010
 815 ===============================
 816   Handle failed restart of clvmd using -S switch properly.
 817   Fix clvmd initscript restart command to start clvmd if not yet running.
 818   Use built-in absolute paths in clvmd (clvmd restart and PV and LV queries).
 819   Require partial option in lvchange --refresh for partial LVs.
 820   Do not fail lvm_init() if init_logging() or _init_rand() generates an errno.
 821   Don't merge unchanged persistent cache file before dumping if tool scanned.
 822   Fix incorrect memory pool deallocation while using vg_read for files.
 823   Add --type parameter description to the lvcreate man page.
 824   Replace strncmp kernel version number checks with proper ones.
 825   Avoid selecting names under /dev/block if there is an alternative.
 826   Update clustered log kernel module name to log-userspace for 2.6.31 onwards.
 827   Add replicators' LVs to dtree for activation.
 828   Supress activation message if there is a missing replicator VG.
 829   Fix scripts/relpath.awk to work in mawk
 830   Extend lock_vol to check for missing replicator VGs first.
 831   Update _process_one_vg and process_each_lv_in_vg to populate cmd_vg.
 832   Add cmd_vg structure and associated functions for replicator.
 833   Extend _lv_each_dependency() to handle replicator dependencies.
 834   Add check_replicator_segment() to catch internal replicator errors.
 835   Initial support for replicator metadata.
 836   Extend process_each_lv_in_vg() to provide list of failed lvnames.
 837   Consistently return ECMD_FAILED if process_each_*lv() is interrupted.
 838
 839 Version 2.02.66 - 20th May 2010
 840 ===============================
 841   If unable to obtain snapshot percentage leave value blank on reports.
 842   Add install_system_dirs and install_initscripts makefile targets.
 843   Add configure options for system and locking directories.
 844   Generate example.conf so default lvm.conf contents can be configured.
 845   Install lvmconf script by default.
 846   Remove unnecessary versioned dmeventd plugin symlinks.
 847   Add tests for lvm_vgname_from_{pvid|device}.
 848   Add lvm2app interfaces to lookup a vgname from a pvid and pvname.
 849   Update pvchange to always obtain a vg handle for each pv to process.
 850   Add find_vgname_from_{pvname|pvid} functions.
 851   Add pvid_from_devname and lvmcache_vgname_from_pvid lvmcache functions.
 852   Validate orphan and VG_GLOBAL lock order too.
 853   Accept orphan VG names as parameters to lock_vol() and related functions.
 854   Use is_orphan_vg in place of hard-coded prefix tests and add is_global_vg.
 855
 856 Version 2.02.65 - 17th May 2010
 857 ===============================
 858   Fix clvmd init script never to deactivate non-clustered volume groups.
 859   Disallow vgchange --clustered if there are active mirrors or snapshots.
 860   Introduce lv_is_mirrored.
 861   Use /bin/bash for scripts with bashisms.
 862   Skip internal lvm devices in scan if ignore_suspended_devices is set.
 863   Do not merge old device cache after we run full scan. (2.02.56)
 864   Add pkgconfigdir Makefile variable for make install override.
 865   Configure pkgconfig udev and selinux dependencies.
 866   Switch Libs.private to Requires.private in devmapper.pc and lvm2app.pc.
 867   Use pkgconfig Requires.private for devmapper-event.pc.
 868   Add libdevmapper to linked libdevmapper-event.so.
 869   Link liblvm2cmd.so with libdevmapper-event and libdevmapper.
 870   Fix truncated total size displayed by pvscan.
 871   Add new --sysinit compound option to vgchange and lvchange.
 872   Drop duplicate errors for read failures and missing devices to verbose level.
 873   Use $(libdir)/lvm2 with make install_lvm2_plugin.
 874   Use $(libdir)/device-mapper with make install_dm_plugin.
 875   Add dm_list_splice() function to join two lists together.
 876
 877 Version 2.02.64 - 30th April 2010
 878 =================================
 879   Avoid pointless initialisation when the 'version' command is run directly.
 880   Fix memory leak for invalid regex pattern input.
 881   Display invalid regex pattern for filter configuration in case of error.
 882   Remove no-longer-used arg_ptr_value.
 883   Fix -M and --type to use strings, not pointers that change on config refresh.
 884   Fix lvconvert error message when existing mirrored LV is not found.
 885   Set appropriate udev flags for reserved LVs.
 886   Disallow the direct removal of a merging snapshot.
 887   Don't preload the origin when removing a snapshot whose merge is pending.
 888   Disallow the addition of mirror images while a conversion is happening.
 889   Disallow primary mirror image removal when mirror is not in-sync.
 890   Remove obsolete --name parameter from vgcfgrestore.
 891   Add -S command to clvmd to restart the daemon preserving exclusive locks.
 892   Increment lvm2app version from 1 to 2 (memory allocation changes).
 893   Change lvm2app memory alloc/free for pv/vg/lv properties.
 894   Change daemon lock filename from lvm2_monitor to lvm2-monitor for consistency.
 895   Install symbolic .so links with relative paths between usrlibdir and libdir.
 896   Add awk script relpath.awk to calculate paths for relative symlinks.
 897   Use @AWK@ in makefiles.
 898   Fix double DESTDIR usage for infodir and mandir.
 899
 900 Version 2.02.63 - 14th April 2010
 901 =================================
 902   Rename lvm_dump.sh to lvmdump.sh.
 903   Allow incomplete mirror restore in lvconvert --repair upon insufficient space.
 904   Do not reset position in metadata ring buffer on vgrename and vgcfgrestore.
 905   Allow VGs with active LVs to be renamed.
 906   Use UUIDs instead of names while processing event handlers.
 907   Only pass visible LVs to tools in cmdline VG name/tag expansions without -a.
 908   Use typedefs for toollib process_each functions.
 909   Use C locales and use_mlockall for clvmd.
 910   Refactor code related to vg->pvs list and add pv->vg link.
 911   Mask LCK_HOLD flag in cluster VG locks for backwards compatibility.
 912   Add activation/polling_interval to lvm.conf as --interval default.
 913   Don't ignore error if resuming any LV fails in resume_lvs.
 914   Skip closing persistent filter cache file if open failed.
 915   Install .a and .so links into $(usrlibdir).
 916   Add --enable-write_install options to install user-writable files.
 917   Use INSTALL_PROGRAM/DATA/WDATA target.
 918   Switch from using VPATH  to vpath in Makefiles.
 919   Permit mimage LVs to be striped in lvcreate, lvresize and lvconvert.
 920   Fix pvmove allocation to take existing parallel stripes into account.
 921   Add pvmove_source_seg to struct lv_segment.
 922   Fix incorrect removal of symlinks after LV deactivation fails.
 923   Fix is_partitioned_dev not to attempt to reopen device.
 924   Fix another thread race in clvmd.
 925   Refactor management of vg->pvs list.
 926   Fix lcov rules and generate better coverage report.
 927   Improve vg_validate to detect some loops in lists.
 928   Change most remaining log_error WARNING messages to log_warn.
 929   Always use blocking lock for VGs and orphan locks.
 930   Allocate all memory for segments from private VG mempool.
 931   Return newly allocated PV segment after segment split.
 932   Optimise searching PV segments for seeking the most recently-added.
 933   Remove vg_validate call when parsing cached metadata.
 934   Use hash table of LVs to speed up parsing of text metadata with many LVs.
 935   Fix two vg_validate messages, adding whitespace and parentheses.
 936   When dmeventd is not forking because of -d flag, don't kill parent process.
 937   Fix 'make install' when $(builddir) is different from $(srcdir).
 938   Fix dso resource leak in error path of dmeventd.
 939   Use C locales and use_mlockall for dmeventd.
 940   Fix --alloc contiguous policy only to allocate one set of parallel areas.
 941   Do not allow {vg|lv}change --ignoremonitoring if on clustered VG.
 942   Improved dependency tracking for dmeventd and liblvm2cmd sources.
 943   Improved Makefile rules for distclean and cflow targets.
 944   Add ability to create mirrored logs for mirror LVs.
 945   Fix clvmd cluster propagation of dmeventd monitoring mode.
 946   Allow ALLOC_ANYWHERE to split contiguous areas.
 947   Use INTERNAL_ERROR for internal errors throughout tree.
 948   Add some assertions to allocation code.
 949   Introduce pv_area_used into allocation algorithm and add debug messages.
 950   Add activation/monitoring to lvm.conf.
 951   Add --monitor and --ignoremonitoring to lvcreate.
 952   Allow dynamic extension of array of areas selected as allocation candidates.
 953   Export and use only valid cookie value in test suite.
 954   Remove const modifier for struct volume_group* from process_each_lv_in_vg().
 955   Don't allow resizing of internal logical volumes.
 956   Fix libdevmapper-event pkgconfig version string to match libdevmapper.
 957   Avoid scanning all pvs in the system if operating on a device with mdas.
 958   Add configure --with-clvmd=singlenode to use clvmd w/o cluster infrastructure.
 959   Get stacktrace if testsuite test drops core and lvm was built with debugging.
 960   Disable long living process flag in lvm2app.
 961   Fix pvcreate device md filter check.
 962   Suppress repeated errors about the same missing PV uuids.
 963   Bypass full device scans when using internally-cached VG metadata.
 964   Only do one full device scan during each read of text format metadata.
 965   Remove unnecessary full_scan parameter from get_vgids and get_vgnames calls.
 966   Look up missing PVs by uuid not dev_name in _pvs_single to avoid invalid stat.
 967   Make find_pv_in_vg_by_uuid() return same type as related functions.
 968   Introduce is_missing_pv().
 969   Fix clvmd Makefile to not overwrite LIBS from template definition.
 970
 971 Version 2.02.62 - 9th March 2010
 972 ================================
 973   Add use_mlockall and mlock_filter to activation section of lvm.conf.
 974   Add default alternative to mlockall using mlock to reduce pinned memory size.
 975   Remove -rdynamic from static builds.
 976   Update checks for pthread, readline & selinux libs and link only when needed.
 977   Introduce makefile vars UDEV_LIBS, DL_LIBS, SELINUX_LIBS, STATIC_LIBS.
 978   Introduce makefile vars LVMINTERNAL_LIBS, READLINE_LIBS, PTHREAD_LIBS.
 979   Toggle configure help to print --disable-fsadm.
 980   Use $() instead of ${} consistently for all Makefile variables.
 981   Replace CFLOW_CMD only in make.tmpl and use it as variable elsewhere.
 982   Use $(top_builddir) for inclusion of make.tmpl in Makefiles.
 983   Fix autoconf warning about ignored datarootdir.
 984   Increase AC_PREREQ version to 2.61 (for AC_PROC_SED, AC_PROG_MKDIR_P).
 985   Handle misaligned devices that report alignment_offset of -1.
 986   Extend core allocation code in preparation for mirrored log areas.
 987   Rewrite clvmd init script.
 988   Remove lvs_in_vg_activated_by_uuid_only call.
 989   No longer fall back to looking up active devices by name if uuid not found.
 990   Don't touch /dev in vgmknodes if activation is disabled.
 991   Update lvm2app.h Doxygen comments and add lvm2app Doxygen config file.
 992   Update nightly tests and lvm2app unit tests to cover tags.
 993   Add lvm2app functions lvm_{vg|lv}_{get|add|remove}_tag() functions.
 994   Add dm_pool_strdup to allocate and copy memory in tag library function.
 995   Refactor vgcreate, vgchange, and lvchange for tag library function.
 996   Refactor snapshot-merge deptree and device removal to support info-by-uuid.
 997
 998 Version 2.02.61 - 15th February 2010
 999 ====================================
1000   Fix some consts and floating point gcc warnings.
1001   Fix dm_report_field_uint64 function to accept 64-bit ints.
1002   Change readhead display to use 32-bit -1 const instead of 64-bit.
1003   Add LVM_SUPPRESS_LOCKING_FAILURE_MESSAGES environment variable.
1004   Remove hard-coding that skipped _mimage devices from 11-dm-lvm.rules.
1005   Use udev transactions in test suite.
1006   Set udev state automatically instead of using LVM_UDEV_DISABLE_CHECKING.
1007   Add lvm_pv_get_size, lvm_pv_get_free and lvm_pv_get_dev_size to lvm2app.
1008   Change lvm2app to return all sizes in bytes as documented (not sectors).
1009   Add 'fail_if_percent_unsupported' arg to _percent and _percent_run.
1010   Remove false "failed to find tree node" error when activating merging origin.
1011   Exit with success when lvconvert --repair --use-policies performs no action.
1012   Accept a list of LVs with 'lvconvert --merge @tag' using process_each_lv.
1013   Avoid unnecessary second resync when adding mimage to core-logged mirror.
1014   Exclude internal VG names and uuids from lists returned through lvm2app.
1015   Add %ORIGIN support to lv{create,extend,reduce,resize} --extents.
1016   Add _mda_copy to clone a struct metadata_area.
1017   Remove pointless versioned symlinks to dmeventd plugin libraries.
1018   Fix dmeventd snapshot plugin build dependency.
1019   Make clvmd -V return status zero.
1020   Remove unnecessary 'dmsetup resume' following 'dmsetup create' in tests.
1021   Fix cmirrord segfault in clog_cpg list processing when converting mirror log.
1022   Deactivate temporary pvmove mirror cluster-wide when activating it fails.
1023   Always query device by uuid and not name in clvmd.
1024   Add missing metadata vg_reverts in pvmove error paths.
1025   Unlock shared lock in clvmd if activation calls fail.
1026   Return success from dev_manager_info with non-existent uuid if ioctl succeeds.
1027
1028 Version 2.02.60 - 23rd January 2010
1029 ===================================
1030   Extend cmirrord man page.
1031   Sleep before first progress check if pvmove/lvconvert interval has prefix '+'.
1032   Default to checking progress before waiting in _wait_for_single_lv.
1033   Fix cmirror initscript (including syntax error).
1034   Eliminate avoidable ioctls for checking open_count in _add_new_lv_to_dtree.
1035   Disable memory debugging if dmeventd is configured. (Not thread-safe.)
1036   Fix first log message prefix in syslog for dmeventd plugins.
1037   Fix exported symbols names for dmeventd lvm2 wrapper plugin.
1038   Make failed locking initialisation messages more descriptive.
1039
1040 Version 2.02.59 - 21st January 2010
1041 ===================================
1042   Add libdevmapper-event-lvm2.so to serialise dmeventd plugin liblvm2cmd use.
1043   Cleanup memory initialization and freeing in pv_read() and pv_create().
1044   Clear pointer and counters after their release in _fin_commands().
1045   Stop dmeventd trying to access already-removed snapshots.
1046   Remove (fallback) /dev mknod from cmirrord.
1047   Add t-topology-support.sh and t-snapshot-merge.sh tests.
1048   Fix clvmd to never scan suspended devices.
1049   Fix dmeventd build outside source tree.
1050   Assorted cmirror code changes to remove various compiler warnings.
1051   Fix detection of completed snapshot merge.
1052   Add Red Hat cmirror initscript (unfinished).
1053   Add cmirrord man page (incomplete).
1054   Make cluster log communication structures architecture independant.
1055   Fix cluster log in-memory bitmap handling.
1056   Improve snapshot merge metadata import validation.
1057   Improve target type compatibility checking in _percent_run().
1058   Add 'target_status_compatible' method to 'struct segtype_handler'.
1059   Change underscore to hyphen in table line for clustered log type.
1060
1061 Version 2.02.58 - 14th January 2010
1062 ===================================
1063   Cleanup some minor gcc warnings.
1064   Add --merge to lvconvert to merge a snapshot into its origin.
1065   Fix clvmd automatic target module loading crash (no reset_locking fn).
1066   Fix allocation code not to stop at the first area of a PV that fits.
1067
1068 Version 2.02.57 - 12th January 2010
1069 ===================================
1070   Ensure exactly one process returns from poll_daemon(), never two.
1071   Reset _vgs_locked in lvmcache_init() in child after forking.
1072   Define {DM, LVM}_UDEV_DISABLE_CHECKING=1 environment variables during tests.
1073   Enable udev_sync and udev_rules in lvm.conf by default while running tests.
1074   If LVM_UDEV_DISABLE_CHECKING in set in environment, disable udev warnings.
1075   Add --splitmirrors to lvconvert to split off part of a mirror.
1076   Change background polldaemon's process name to "(lvm2)".
1077   Allow vgremove to remove a VG with PVs missing after a prompt.
1078   Return success in lvconvert --repair --use-policies on failed allocation.
1079   Keep log type consistent when changing mirror image count.
1080   Always set environment variables for an LVM2 device in 11-dm-lvm.rules.
1081   Add activation/udev_rules config option in lvm.conf.
1082   Add consts to text metadata flag structs.
1083   Add macros outfc, outsize, outhint and function out_text_with_comment.
1084   Reimplement report FIELD macro using offsetof instead of static structs.
1085   Fix fsadm man page typo (fsdam).
1086   Rename mirror_device_fault_policy to mirror_image_fault policy.
1087   Remove empty PV devices if lvconvert --repair is using defined policies.
1088   Use fixed buffer to prevent stack overflow in persistent filter dump.
1089   Use extended status of new kernel snapshot target 1.8.0 to detect when empty.
1090   Insert stack macros in suspend_lv, resume_lv & (de)activate_lv callers.
1091   Add --poll flag to vgchange and lvchange to control background daemon launch.
1092   Propagate metadata commit and revert notifications to other cluster nodes.
1093   Use proper mask for VG lock mode in clvmd.
1094   Allow precommitted metadata to be dropped from lvmcache.
1095   Move processing of VG locks to separate function in clvmd.
1096   Properly decode all flags in clvmd messages including VG locks.
1097   Properly handle precommitted cache flag when only committed metadata present.
1098   Resume renamed volumes in reverse order to preserve memlock pairing.
1099   Drop cached metadata after device was auto-repaired and removed from VG.
1100   Clear MISSING_PV flag if PV reappeared and is empty.
1101   Fix removal of multiple devices from a mirror.
1102   Also clean up PVs flagged as missing in vgreduce --removemissing --force.
1103   Introduce INTERNAL_ERROR macro for error messages and use throughout.
1104   Remove superfluous returns from void functions.
1105   Destroy allocated mempool in _vg_read_orphans() error path.
1106   Fix some pvresize and toollib error paths with missing VG releases/unlocks.
1107   Explicitly call suspend for temporary mirror layer.
1108   Allow use of precommitted metadata when a PV is missing.
1109   Add memlock information to do_lock_lv debug output.
1110   Always bypass calls to remote cluster nodes for non-clustered VGs.
1111   Permit implicit cluster lock conversion in pre/post callbacks on local node.
1112   Permit implicit cluster lock conversion to the lock mode already held.
1113   Fix lock flag masking in clvmd so intended code paths get invoked.
1114   Replace magic masks in cluster locking code by defined masks.
1115   Remove newly-created mirror log from metadata if initial deactivation fails.
1116   Correct activated or deactivated text in vgchange summary message.
1117   Improve pvmove error message when all source LVs are skipped.
1118   Fix memlock imbalance in lv_suspend if already suspended.
1119   Fix pvmove test mode not to poll (and fail).
1120   Fix vgcreate error message if VG already exists.
1121   Fix tools to use log_error when aborted due to user response to prompt.
1122   Fix ignored readahead setting in lvcreate --readahead.
1123   Fix clvmd memory leak in lv_info_by_lvid by calling release_vg.
1124   If aborting due to internal error, always send that message to stderr.
1125   Add global/abort_on_internal_errors to lvm.conf to assist testing.
1126   Fix test Makefiles when builddir and srcdir differ.
1127   Impose limit of 8 mirror images to match the in-kernel kcopyd restriction.
1128   Use locking_type 3 (compiled in) for lvmconf --enable-cluster.
1129   Remove list.c and list.h with no-longer-used dm_list macros and functions.
1130   Log failure type and recognise type 'F' (flush) in dmeventd mirror plugin.
1131   Extend internal PV/VG/LV/segment status variables from 32-bit to 64-bit.
1132
1133 Version 2.02.56 - 24th November 2009
1134 ====================================
1135   Add missing vg_release to pvs and pvdisplay to fix memory leak.
1136   Do not try to unlock VG which is not locked in _process_one_vg.
1137   Move is_long_lived persistent_filter_dump to happen after every full scan.
1138   Refresh device filters before full device rescan in lvmcache.
1139   Return error status if vgchange fails to activate some volume.
1140   Fix suspend/resume lock type test causing unbalanced memory locking.
1141   Revert vg_read_internal change as clvmd was not ready for vg_read. (2.02.55)
1142
1143 Version 2.02.55 - 19th November 2009
1144 ====================================
1145   Fix deadlock when changing mirrors due to unpaired memlock refcount changes.
1146   Use separate memlock counter for dmeventd handlers to permit device scanning.
1147   Directly restrict vgchange to activating visible LVs.
1148   Fix pvmove region_size overflow for very large PVs.
1149   Fix lvcreate and lvresize %PVS argument always to use sensible total size.
1150   Tidy some uses of arg_count and introduce arg_is_set.
1151   Export outnl and indent functions for modules.
1152   Flush stdout after yes/no prompt.
1153   Update vgsplit and vgcreate to use vg_set_clustered.
1154   Add vg_mda_count and vg_set_clustered library functions.
1155   Add more vgcreate and vgsplit nightly tests.
1156   Insert some missing stack macros into activation code.
1157   Recognise DRBD devices and handle them like md devices.
1158
1159 Version 2.02.54 - 26th October 2009
1160 ===================================
1161   Update lvcreate/lvconvert man pages to explain PhysicalVolume parameter.
1162   Document --all option in man pages, cleanup {pv|vg|lv}{s|display} man pages.
1163   Permit snapshots of mirrors.
1164   Cleanup mimagetmp LV if allocation fails for new lvconvert mimage.
1165   Fix clvmd segfault when refresh_toolcontext fails.
1166   Remember to clear 'global lock held during cache refresh' state after use.
1167   Use udev flags support in LVM and apply various fixes to udev rules.
1168   Delay announcing mirror monitoring to syslog until initialisation succeeded.
1169   Handle metadata with unknown segment types more gracefully.
1170   Set default owner and group to null.
1171   Add dmeventd.static to the build.
1172   Disable realtime support code by default.
1173   Make clvmd return 0 on success rather than 1.
1174   Add --pvmetadatacopies for pvcreate, vgcreate, vgextend, vgconvert.
1175   Add implict pvcreate support to vgcreate and vgextend.
1176   Correct example.conf to indicate that lvm2 not lvm1 is the default format.
1177   Remove an unused stray LVM1_SUPPORT ifdef.
1178   Only include selinux libs in libdevmapper.pc when selinux build enabled.
1179   Allow for a build directory separate from the source.
1180   Update distclean target for rename clogd to cmirrord. (2.02.52)
1181   Only do lock conversions in clvmd if we are explicitly asked for one.
1182   Introduce percent_range_t and centralise snapshot full/mirror in-sync checks.
1183   Factor out poll_mirror_progress and introduce progress_t.
1184   Distinguish between powers of 1000 and powers of 1024 in unit suffixes.
1185   Restart lvconverts in vgchange by sharing lv_spawn_background_polling.
1186   Generalise polldaemon code by changing mirror-specific variable names.
1187   Don't attempt to deactivate an LV if any of its snapshots are in use.
1188   Return error if lv_deactivate fails to remove device from kernel.
1189   Provide alternative implementation of obsolete siginterrupt().
1190   Consolidate LV allocation into alloc_lv().
1191   Treat input units of both 's' and 'S' as 512-byte sectors.  (2.02.49)
1192   Use standard output units for 'PE Size' and 'Stripe size' in pv/lvdisplay.
1193   Add configure --enable-units-compat to set si_unit_consistency off by default.
1194   Add global/si_unit_consistency to enable cleaned-up use of units in output.
1195
1196 Version 2.02.53 - 25th September 2009
1197 =====================================
1198   Create any directories in /dev with DM_DEV_DIR_UMASK (022).
1199   Enable dmeventd monitoring section of config file by default.
1200   Update lvm2 monitoring script to lvm2_monitoring_init_red_hat.in.
1201   Fix lvm2app test to run under test/api subdirectory only when configured.
1202   Add vg_is_resizeable() and cleanup reference to VG_RESIZEABLE.
1203
1204 Version 2.02.52 - 15th September 2009
1205 =====================================
1206   Update _process_one_vg to cleanup properly after vg_read_error.
1207   Add lots of missing stack debug messages to tools.
1208   Make readonly locking available as locking type 4.
1209   Fix readonly locking to permit writeable global locks (for vgscan). (2.02.49)
1210   Add DM_UDEV_RULES_VSN environment variable to udev rules.
1211   Update vgsplit, vgmerge, and vgrename to obey new vgname ordering rules.
1212   Make lvm2app pv_t, lv_t, vg_t handle definitions consistent with lvm_t.
1213   Enforce an alphabetical lock ordering on vgname locking.
1214   Prioritise write locks over read locks by default for file locking.
1215   Add local lock files with suffix ':aux' to serialise locking requests.
1216   Fix global locking in PV reporting commands (2.02.49).
1217   Fix pvcreate string termination in duplicate uuid warning message.
1218   Don't loop reading sysfs with pvcreate on a non-blkext partition (2.02.51).
1219   Fix vgcfgrestore error paths when locking fails (2.02.49).
1220   Update Makefile distclean target.
1221   Add libudev configuration check.
1222   Make clvmd check corosync to see what cluster interface it should use.
1223   Add clvmd autodetection check and cleanup related configure messages.
1224   Rewrite clvmd configuration code to cope with all combinations of libs.
1225   Added configure --enable-cmirrord to build the cluster mirror log daemon.
1226   Rename clogd to cmirrord.
1227   Make lvchange --refresh only take a read lock on volume group.
1228   Fix race where non-blocking file locks could be granted in error.
1229   Fix vgextend error path - if ORPHAN lock fails, unlock / release vg (2.02.49).
1230   Fix compile warning in clvmd.
1231   Clarify use of PE ranges in lv{convert|create|extend|resize} man pages.
1232   Remove useless _pv_write wrapper.
1233   Add lvm2app.sh to tests conditional upon configure --enable-applib.
1234   Add lvm_vg_is_clustered, lvm_vg_is_exported, and lvm_vg_is_partial.
1235   Update lvm_vg_remove to require lvm_vg_write to commit remove to disk.
1236   Update test/api/test.c to call lvm_vg_create and lvm_vg_remove.
1237
1238 Version 2.02.51 - 6th August 2009
1239 =================================
1240   Fix locking in clvmd (2.02.50).
1241   Add --noudevsync option for relevant LVM tools.
1242   Add activation/udev_sync to lvm.conf.
1243   Only change LV symlinks on ACTIVATE not PRELOAD.
1244   Make lvconvert honour log mirror options combined with downconversion.
1245   Allow LV suspend while --ignorelockingfailure is in force.
1246   Update synopsis in lvconvert manpage to mention --repair.
1247   Set cookies in activation code and wait for udev to complete processing.
1248   Added configure --enable-udev_rules --enable-udev_sync.
1249   Added configure --with-udev-prefix --with-udevdir.
1250   Added udev dir to hold udev rules.
1251   Add devices/data_alignment_detection to lvm.conf.
1252   Add devices/data_alignment_offset_detection to lvm.conf.
1253   Add --dataalignmentoffset to pvcreate to shift start of aligned data area.
1254   Fix _mda_setup() to not check first mda's size before pe_align rounding.
1255   Document -I option of clvmd in the man page.
1256   Fix configure script to handle multiple clvmd selections.
1257   Fix lvm2app.pc installation filename.
1258   Remove pv_t, vg_t & lv_t handles from lib.  Only liblvm uses them.
1259   Rename lvm.h to lvm2app.h for now.
1260
1261 Version 2.02.50 - 28th July 2009
1262 ================================
1263   Change test/api/test.c prompt so it's not confused with the main lvm prompt.
1264   Update liblvm unit tests in test/api to cover latest liblvm changes.
1265   Add unimplemented lvm_lv_resize and lvm_pv_resize skeletons to liblvm.
1266   Add lvm_library_get_version to liblvm.
1267   Add lvm_config_override to liblvm to allow caller to override LVM config.
1268   Add lvm_lv_is_active and lvm_lv_is_suspended to liblvm.
1269   Add lvm_lv_activate and lvm_lv_deactivate to liblvm.
1270   Add lvm_scan, lvm_vg_reduce and lvm_vg_remove_lv to liblvm.
1271   Add functions to get numeric properties to liblvm.
1272   Add lvm_{pv|vg|lv}_get_{name|uuid} to liblvm.
1273   Add lvm_vg_list_pvs and lvm_vg_list_lvs to liblvm.
1274   Add lvm_vg_open and lvm_vg_create_lv_linear to liblvm.
1275   Add lvm_list_vg_names/uuids to liblvm.
1276   Add lvm_errno and lvm_errmsg to liblvm to obtain failure information.
1277   Rename lvm_create/destroy to lvm_init/quit.
1278   Rename lvm_reload_config to lvm_config_reload.
1279   Refactor _override_settings to use new override_config_tree_from_string.
1280   Add vg_reduce to metadata.c and metadata-exported.h.
1281   Update lvm.h to clarify API behavior and return codes.
1282   Update lvm_vg_extend to do an implicit pvcreate on the device.
1283   Update display.c to use vg_free(vg) instead of duplicating the calculation.
1284   Refactor vg_size, vg_free, and pv_mda_count field calculations for liblvm.
1285   Refactor pvcreate and lvcreate for liblvm.
1286   Add global/wait_for_locks to lvm.conf so blocking for locks can be disabled.
1287   All LV locks are non-blocking so remove LCK_NONBLOCK from separate macros.
1288   Fix race condition with vgcreate and vgextend on same device (2.02.49).
1289   Remove redundant validate_name call from vgreduce.
1290   Remove unused handles lvseg, pvseg inside liblvm/lvm.h.
1291   Add liblvm2app Makefile installation targets.
1292   Add liblvm pkgconfig file.
1293   Use newly-independent LVM_LIBAPI in liblvm soname.  E.g. liblvm2app.so.2.1.
1294   Add an API version number, LVM_LIBAPI, to the VERSION string for liblvm.
1295   Pass a pointer to struct cmd_context to init_multiple_segtypes
1296   Return EINVALID_CMD_LINE not success when invalid VG name format is used.
1297   Remove unnecessary messages after vgcreate/vgsplit refactor (2.02.49).
1298   Add log_errno to set a specific errno and replace log_error in due course.
1299   Change create_toolcontext to still return an object if it fails part-way.
1300   Add EUNCLASSIFIED (-1) as the default LVM errno code.
1301   Store any errno and error messages issued while processing each command.
1302   Use log_error macro consistently throughout in place of log_err.
1303
1304 Version 2.02.49 - 15th July 2009
1305 ================================
1306   Add readonly locking type to replace implementation of --ignorelockingfailure.
1307   Exclude VG_GLOBAL from vg_write_lock_held so scans open devs read-only again.
1308   Add unit test case for liblvm VG create/delete APIs.
1309   Add liblvm APIs to implement creation and deletion of VGs.
1310   Initialize cmd->cmd_line to "liblvm" in new liblvm library.
1311   Place handles to liblvm objects for pv, vg, lv, lvseg, pvseg inside lvm.h.
1312   Refactor vgsplit and vgextend to remove READ_REQUIRE_RESIZEABLE flag.
1313   Use _exit() not exit() after forking to avoid flushing libc buffers twice.
1314   Add cast to log_info arg in _find_labeller to avoid Sparc64 warning.
1315   Make cmd->cmd_line const.
1316   Fix dev name mismatch in vgcreate man page example.
1317   Refactor vg_remove_single for use in liblvm.
1318   Make all tools use consistent lock ordering obtaining VG_ORPHAN lock second.
1319   Check md devices for a partition table during device scan.
1320   Add extended device (blkext) and md partition (mdp) types to filters.
1321   Make text metadata read errors for segment areas more precise.
1322   Fix text segment metadata read errors to mention correct segment name.
1323   Include segment and LV names in text segment import error messages.
1324   Add parent node to config_node structure.
1325   Update vgsplit and vgcreate to call new vg_create and 'set' functions.
1326   Change vg_create to take minimal parameters, obtain a lock, and return vg_t.
1327   Refactor vgchange extent_size, max_lv, max_pv, and alloc_policy for liblvm.
1328   Update t-vgcreate-usage.sh to test for default vg properties.
1329   Fix memory leak in vgsplit when re-reading the vg.
1330   Make various exit/cleanup paths more robust after lvm init failures.
1331   Use LCK_NONBLOCK implicitly instead of explicit vg_read() flag.
1332   Remove unnecessary locking and existence tests from new vg_read() interface.
1333   Permit several segment types to be registered by a single shared object.
1334   Update the man pages to document size units uniformly.
1335   Allow commandline sizes to be specified in terms of bytes and sectors.
1336   Update 'md_chunk_alignment' to use stripe-width to align PV data area.
1337   Update test/t-inconsistent-metadata.sh to match new vg_read interface.
1338   Add lvmcache_init() to polldaemon initialization.
1339   Convert tools to use new vg_read / vg_read_for_update.
1340   Fix segfault in vg_release when vg->cmd is NULL.
1341
1342 Version 2.02.48 - 30th June 2009
1343 ================================
1344   Abort if automatic metadata correction fails when reading VG to update it.
1345   Explicitly request fallback to default major number in device mapper.
1346   Ignore suspended devices during repair.
1347   Call vgreduce --removemissing automatically to fix missing PVs in dmeventd.
1348   Suggest using lvchange --resync when adding leg to not-yet-synced mirror.
1349   Destroy toolcontext on clvmd exit to avoid memory pool leaks.
1350   Fix lvconvert not to poll mirror if no conversion in progress.
1351   Fix memory leaks in toolcontext error path.
1352   Reinstate partial activation support in clustered mode. (2.02.40)
1353   Allow metadata correction even when PVs are missing.
1354   Use 'lvm lvresize' instead of 'lvresize' in fsadm.
1355   Do not use '-n' realine option in fsadm for busybox compatiblity.
1356   Add vg_lock_newname() library function for vgrename, vgsplit and vgcreate.
1357   Round up requested readahead to at least one page and print warning.
1358   Try to repair vg before actual vgremove when force flag provided.
1359   Fix possible double release of VG after recovery.
1360   Add parameter to process_each_vg specifying what to do with inconsistent VG.
1361   Unify error messages when processing inconsistent volume group.
1362   Use lvconvert --repair instead of vgreduce in mirror dmeventd DSO.
1363   Introduce lvconvert --use_policies (repair policy according to lvm.conf).
1364   Update clvmd-corosync to match new corosync API.
1365   Fix lib Makefile to include any shared libraries in default target.
1366   Fix rename of active snapshot with virtual origin.
1367   Fix convert polling to ignore LV with different UUID.
1368   Cache underlying device readahead only before activation calls.
1369   Fix segfault when calculating readahead on missing device in vgreduce.
1370   Remove verbose 'visited' messages.
1371   Handle multi-extent mirror log allocation when smallest PV has only 1 extent.
1372   Add LSB standard headers and functions (incl. reload) to clvmd initscript.
1373   When creating new LV, double-check that name is not already in use.
1374   Remove /dev/vgname/lvname symlink automatically if LV is no longer visible.
1375   Rename internal vorigin LV to match visible LV.
1376   Suppress 'removed' messages displayed when internal LVs are removed.
1377   Fix lvchange -a and -p for sparse LVs.
1378   Fix lvcreate --virtualsize to activate the new device immediately.
1379   Make --snapshot optional with lvcreate --virtualsize.
1380   Generalise --virtualoriginsize to --virtualsize.
1381   Skip virtual origins in process_each_lv_in_vg() without --all.
1382   Fix counting of virtual origin LVs in vg_validate.
1383   Attempt to load dm-zero module if zero target needed but not present.
1384
1385 Version 2.02.47 - 22nd May 2009
1386 ===============================
1387   Rename liblvm.so to liblvm2app.so and use configure --enable-applib.
1388   Reinstate version in liblvm2cmd.so soname. (2.02.44)
1389
1390 Version 2.02.46 - 21st May 2009
1391 ===============================
1392   Inherit readahead setting from underlying devices during activation.
1393   Detect LVs active on remote nodes by querying locks if supported.
1394   Enable online resizing of mirrors.
1395   Use suspend with flush when device size was changed during table preload.
1396   Implement query_resource_fn for cluster_locking.
1397   Support query_resource_fn in locking modules.
1398   Introduce CLVMD_CMD_LOCK_QUERY command for clvmd.
1399   Fix pvmove to revert operation if temporary mirror creation fails.
1400   Fix metadata export for VG with missing PVs.
1401   Add vgimportclone and install it and the man page by default.
1402   Force max_lv restriction only for newly created LV.
1403   Remove unneeded import parameter from lv_create_empty.
1404   Merge lv_is_displayable and lv_is_visible functions.
1405   Introduce lv_set_visible & lv_set_hidden functions.
1406   Fix lv_is_visible to handle virtual origin.
1407   Introduce link_lv_to_vg and unlink_lv_from_vg functions.
1408   Remove lv_count from VG and use counter function instead.
1409   Fix snapshot segment import to not use duplicate segments & replace.
1410   Do not query nonexistent devices for readahead.
1411   Remove NON_BLOCKING lock flag from tools and set a policy to auto-set.
1412   Remove snapshot_count from VG and use function instead.
1413   Fix first_seg() call for empty segment list.
1414   Add install_lvm2 makefile target to install only the LVM2 components.
1415   Reject missing PVs from allocation in toollib.
1416   Fix PV datalignment for values starting prior to MDA area. (2.02.45)
1417   Add sparse devices: lvcreate -s --virtualoriginsize (hidden zero origin).
1418   Fix minimum width of devices column in reports.
1419   Add lvs origin_size field.
1420   Fix linux configure --enable-debug to exclude -O2.
1421   Implement lvconvert --repair for repairing partially-failed mirrors.
1422   Fix vgreduce --removemissing failure exit code.
1423   Fix remote metadata backup for clvmd.
1424   Introduce unlock_and_release_vg macro.
1425   Introduce vg_release() to be called to free every struct volume_group.
1426   Alloc PV internal structure from VG mempool if possible.
1427   Fix metadata backup to run after vg_commit always.
1428   Tidy clvmd volume lock cache functions.
1429   Fix pvs report for orphan PVs when segment attributes are requested.
1430   Fix pvs -a output to not read volume groups from non-PV devices.
1431   Add MMC (mmcblk) device type to filters.
1432   Introduce memory pools per volume group (to reduce memory for large VGs).
1433   Use copy of PV structure when manipulating global PV lists.
1434   Always return exit error status when locking of volume group fails.
1435   Fix mirror log convert validation question.
1436   Avoid referencing files from DESTDIR during build process.
1437   Avoid creating some static libraries unless configured --enable-static_link.
1438   Enable use of cached metadata for pvs and pvdisplay commands.
1439   Add missing 'device-mapper' internal subdir build dependency.
1440   Fix memory leak in mirror allocation code.
1441   Save and restore the previous logging level when log level is changed.
1442   Fix error message when archive initialization fails.
1443   Make sure clvmd-corosync releases the lockspace when it exits.
1444   Fix segfault for vgcfgrestore on VG with missing PVs.
1445   Block SIGTERM & SIGINT in clvmd subthreads.
1446   Detect and conditionally wipe swapspace signatures in pvcreate.
1447   Fix maximal volume count check for snapshots if max_lv set for volume group.
1448   Fix lvcreate to remove unused cow volume if the snapshot creation fails.
1449   Fix error messages when PV uuid or pe_start reading fails.
1450   Build new liblvm application-level library.
1451   Rename liblvm.a to liblvm-internal.a.
1452   Flush memory pool and fix locking in clvmd refresh and backup command.
1453   Fix unlocks in clvmd-corosync. (2.02.45)
1454   Fix error message when adding metadata directory to internal list fails.
1455   Fix size and error message of memory allocation at backup initialization.
1456   Remove old metadata backup file after renaming VG.
1457   Restore log_suppress state when metadata backup file is up-to-date.
1458
1459 Version 2.02.45 - 3rd March 2009
1460 ================================
1461   Avoid scanning empty metadata areas for VG names.
1462   Attempt proper clean up in child before executing new binary in exec_cmd().
1463   Do not scan devices if reporting only attributes from PV label.
1464   Use pkgconfig to obtain corosync library details during configuration.
1465   Fix error returns in clvmd-corosync interface to DLM.
1466   Add --refresh to vgchange and vgmknodes man pages.
1467   Pass --test from lvresize to fsadm as --dry-run.
1468   Supply argv[] list to exec_cmd() to allow for variable number of parameters.
1469   Prevent fsadm from checking mounted filesystems.
1470   No longer treats any other key as 'no' when prompting in fsadm.
1471   Tidy fsadm command line processing.
1472   Add lib/lvm.h and lib/lvm_base.c for the new library interface.
1473   Move tools/version.h to lib/misc/lvm-version.h.
1474   Split LVM_VERSION into MAJOR, MINOR, PATCHLEVEL, RELEASE and RELEASE_DATE.
1475   Add system_dir parameter to create_toolcontext().
1476   Add --dataalignment to pvcreate to specify alignment of data area.
1477   Exclude LCK_CACHE locks from _vg_lock_count, fixing interrupt unblocking.
1478   Provide da and mda locations in debug message when writing text format label.
1479   Mention the restriction on file descriptors at invocation on the lvm man page.
1480   Index cached vgmetadata by vgid not vgname to cope with duplicate vgnames.
1481   No longer require kernel and metadata major numbers to match.
1482   Add a fully-functional get_cluster_name() to clvmd corosync interface.
1483   Remove duplicate cpg_initialize from clvmd startup.
1484   Add option to /etc/sysconfig/cluster to select cluster type for clvmd.
1485   Allow clvmd to start up if its lockspace already exists.
1486   Separate PV label attributes which do not need parse metadata when reporting.
1487   Remove external dependency on the 'cut' command from fsadm.
1488   Fix pvs segfault when pv mda attributes requested for not available PV.
1489   Add fsadm support for reszing ext4 filesysystems.
1490   Move locking_type reading inside init_locking().
1491   Rename get_vgs() to get_vgnames() and clarify related error messages.
1492   Allow clvmd to be built with all cluster managers & select one on cmdline.
1493   Mention --with-clvmd=corosync in ./configure.
1494   Replace internal vg_check_status() implementation.
1495   Rename vg_read() to vg_read_internal().
1496
1497 Version 2.02.44 - 26th January 2009
1498 ===================================
1499   Fix --enable-static_link after the recent repository changes.
1500   Add corosync/DLM cluster interface to clvmd.
1501   Add --nameprefixes, --unquoted, --rows to pvs, vgs, lvs man pages.
1502   Fix lvresize size conversion for fsadm when block size is not 1K.
1503   Fix pvs segfault when run with orphan PV and some VG fields.
1504   Display a 'dev_size' of zero for missing devices in reports.
1505   Add pv_mda_size to pvs and vg_mda_size to vgs.
1506   Fix lvmdump /sys listing to include virtual devices directory.
1507   Add "--refresh" functionality to vgchange and vgmknodes.
1508   Avoid exceeding LV size when wiping device.
1509   Calculate mirror log size instead of using 1 extent.
1510   Ensure requested device number is available before activating with it.
1511   Fix incorrect exit status from 'help <command>'.
1512   Fix vgrename using UUID if there are VGs with identical names.
1513   Fix segfault when invalid field given in reporting commands.
1514   Move is_static from cmd to global is_static().
1515   Refactor init_lvm() for lvmcmdline and clvmd.
1516   Add liblvm interactive test infrastructure to build.
1517   Add skeleton lvm2.h file in preparation for a shared library interface.
1518   Use better random seed value in temp file creation.
1519   Add read_urandom to read /dev/urandom. Use in uuid calculation.
1520   Use displayable_lvs_in_vg and lv_is_displayable for consistency throughout.
1521   Fix race in vgcreate that would result in second caller overwriting first.
1522   Fix uninitialised lv_count in vgdisplay -c.
1523   Don't skip updating pvid hash when lvmcache_info struct got swapped.
1524   Add tinfo to termcap search path for pld-linux.
1525   Fix startup race in clvmd.
1526   Generate Red Hat clvmd startup script at config time with correct paths.
1527   Fix clvmd & dmeventd builds after tree restructuring.
1528   Cope with snapshot dependencies when removing a whole VG with lvremove.
1529   Make man pages and tool help text consistent using | for alternative options.
1530
1531 Version 2.02.43 - 10th November 2008
1532 ====================================
1533   Merge device-mapper into the lvm2 tree.
1534   Correct prototype for --permission on lvchange and lvcreate man pages.
1535   Exit with non-zero status from vgdisplay if couldn't show any requested VG.
1536   Move list.c into libdevmapper and rename functions.
1537   Rename a couple of variables that matched function names.
1538   Use simplified x.y.z version number in libdevmapper.pc.
1539   Remove ancient debian directory.
1540   Split out lvm-logging.h from log.h and lvm-globals.[ch] from log.[ch].
1541
1542 Version 2.02.42 - 26th October 2008
1543 ===================================
1544   Accept locking fallback_to_* options in the global section as documented.
1545   Fix temp table activation in mirror conversions not to happen in other cmds.
1546   Fix temp table in mirror conversions to use always-present error not zero.
1547
1548 Version 2.02.41 - 17th October 2008
1549 ===================================
1550   Use temp table to set device size when converting mirrors.
1551   In resume_mirror_images replace activate_lv with resume_lv as workaround.
1552   Avoid overwriting in-use on-disk text metadata by forgetting MDA_HEADER_SIZE.
1553   Fix snapshot monitoring library to not cancel monitoring invalid snapshot.
1554   Generate man pages from templates and include version.
1555   Add usrlibdir and usrsbindir to configure.
1556   Fix conversion of md chunk size into sectors.
1557   Free text metadata buffer after a failure writing it.
1558   Fix misleading error message when there are no allocatable extents in VG.
1559   Fix handling of PVs which reappeared with old metadata version.
1560   Fix mirror DSO to call vgreduce with proper parameters.
1561   Fix validation of --minor and --major in lvcreate to require -My always.
1562   Fix release: clvmd build, vgreduce consolidate & tests, /dev/ioerror warning.
1563
1564 Version 2.02.40 - 19th September 2008
1565 =====================================
1566   Allow lvremove to remove LVs from VGs with missing PVs.
1567   In VG with PVs missing, by default allow activation of LVs that are complete.
1568   Track PARTIAL_LV and MISSING_PV flags internally.
1569   Require --force with --removemissing in vgreduce to remove partial LVs.
1570   No longer write out PARTIAL flag into metadata backups.
1571   Treat new default activation/missing_stripe_filler "error" as an error target.
1572   Remove internal partial_mode.
1573   Add devices/md_chunk_alignment to lvm.conf.
1574   Pass struct physical_volume to pe_align and adjust for md chunk size.
1575   Store sysfs location in struct cmd_context.
1576   Avoid shuffling remaining mirror images when removing one, retaining primary.
1577   Add missing LV error target activation in _remove_mirror_images.
1578   Prevent resizing an LV while lvconvert is using it.
1579   Avoid repeatedly wiping cache while VG_GLOBAL is held in vgscan & pvscan.
1580   Fix pvresize to not allow resize if PV has two metadata areas.
1581   Fix setting of volume limit count if converting to lvm1 format.
1582   Fix vgconvert logical volume id metadata validation.
1583   Fix lvmdump metadata gather option (-m) to work correctly.
1584   Fix allocation bug in text metadata format write error path.
1585   Fix vgcfgbackup to properly check filename if template is used.
1586   configure aborts if lcov or genhtml are missing with --enable-profiling
1587   vgremove tries to remove lv snapshot first.
1588   Added function lv_remove_with_dependencies().
1589   Improve file descriptor leak detection to display likely culprit and filename.
1590   Change clustered mirror kernel module name from cmirror to dm-log-clustered.
1591   Avoid looping forever in _pv_analyze_mda_raw used by pvck.
1592   Change lvchange exit status to indicate if any part of the operation failed.
1593   Fix pvchange and pvremove to handle PVs without mdas.
1594   Refactor _text_pv_read and always return mda list if requested.
1595   Fix configure to work w/o readline unless --enable-readline used. (2.02.39)
1596   Remove is_lvm_partition template which has not yet been coded.
1597   Refactor pvcreate to separate parameter parsing from validation logic.
1598   Check for label_write() failure in _text_pv_write().
1599   Add pvcreate tests and update vgsplit tests to handle lvm1 and lvm2 metadata.
1600   Fix pvchange -M1 -u to preserve existing extent locations when there's a VG.
1601   Cease recognising snapshot-in-use percentages returned by early devt kernels.
1602   Add backward-compatible flags field to on-disk format_text metadata.
1603   Fix dmeventd monitoring libraries to link against liblvm2cmd again. (2.02.39)
1604
1605 Version 2.02.39 - 27th June 2008
1606 ================================
1607   Enable readline by default if available.
1608   Update autoconf to 2008-01-16.
1609   Add $DISTCLEAN_DIRS to make.tmpl.in.
1610   Create coverage reports with --enable-profiling and make lcov or lcov-dated.
1611   Fix up cache for PVs without mdas after consistent VG metadata is processed.
1612   Update validation of safe mirror log type conversions in lvconvert.
1613   Fix lvconvert to disallow snapshot and mirror combinations.
1614   Fix reporting of LV fields alongside unallocated PV segments.
1615   Add --unquoted and --rows to reporting tools.
1616   Add and use uninitialized_var() macro to suppress invalid compiler warnings.
1617   Introduce enum for md minor sb version to suppress compiler warning.
1618   Avoid undefined return value after _memlock manipulation in lvm2_run.
1619   Avoid link failure if configured without --enable-cmdlib or --enable-readline.
1620   Make clvmd return at once if other nodes down in a gulm or openais cluster.
1621   Fix and improve readahead 'auto' calculation for stripe_size.
1622   Fix lvchange output for -r auto setting if auto is already set.
1623   Add test case for readahead.
1624   Avoid ambiguous use of identifier error_message_produced.
1625   Begin syncing configure.in for merge/unification with device-mapper.
1626   Fix add_mirror_images not to dereference uninitialized log_lv upon failure.
1627   Don't call openlog for every debug line output by clvmd.
1628   Add --force to lvextend and lvresize.
1629   Fix vgchange not to activate component mirror volumes directly.
1630   Fix test directory clean up in make distclean.
1631
1632 Version 2.02.38 - 11th June 2008
1633 ================================
1634   Fix tracking of validity of PVs with no mdas in lvmcache.
1635   Fix return values for reporting commands when run with no PVs, LVs, or VGs.
1636   Add omitted unlock_vg() call when sigint_caught() during vg processing.
1637   Fix free_count when reading pool metadata.
1638   Fix segfault when using pvcreate on a device containing pool metadata.
1639   Fix segfault after _free_vginfo by remembering to remove vginfo from list.
1640   Tweak detection of invalid fid after changes to PVs in VG in _vg_read.
1641   Revert assuming precommitted metadata is live when activating (unnecessary).
1642   Drop cached metadata for disappearing VG in vgmerge.
1643   In script-processing mode, stop if any command fails.
1644   Warn if command exits with non-zero status code without a prior log_error.
1645   Check lv_count in vg_validate.
1646   Add --nameprefixes to reporting tools for field name prefix output format.
1647
1648 Version 2.02.37 - 6th June 2008
1649 ===============================
1650   Make clvmd-cman use a hash rather than an array for node updown info.
1651   Correct config file line numbers in messages when parsing comments.
1652   Drop cached metadata when renaming a VG.
1653   Allow for vginfo changing during _vg_read.
1654   Decode numbers in clvmd debugging output.
1655   Add missing deactivation after activation failure in lvcreate -Zy.
1656   When activating, if precommitted metadata is still cached, assume it's live.
1657   When removing LV symlinks, skip any where the VG name is not determined.
1658   Drop metadata cache if update fails in vg_revert or vg_commit.
1659   Avoid spurious duplicate VG messages referring to VGs that are gone.
1660   Drop dev_name_confirmed error message to debug level.
1661   Fix setpriority error message to signed int.
1662   Temporarily disable dmeventd mirror monitoring during lvchange --resync.
1663   Refactor some vginfo manipulation code.
1664   Add assertions to trap deprecated P_ and V_ lock usage.
1665   Add missing mutex around clvmd lvmcache_drop_metadata library call.
1666   Fix uninitialised mutex in clvmd if all daemons are not running at startup.
1667   Avoid using DLM locks with LCK_CACHE type P_ lock requests.
1668   When asked to drop cached committed VG metadata, invalidate cached PV labels.
1669   Drop metadata cache before writing precommitted metadata instead of after.
1670   Don't touch /dev in vgrename if activation is disabled.
1671
1672 Version 2.02.36 - 29th April 2008
1673 =================================
1674   Fix fsadm.sh to work with older blockdev, blkid & readlink binaries.
1675   Fix lvresize to pass new size to fsadm when extending device.
1676   Remove unused struct in clvmd-openais, and use correct node count.
1677   Fix nodes list in clvmd-openais, and allow for broadcast messages.
1678   Exclude VG_GLOBAL from internal concurrent VG lock counter.
1679   Fix vgsplit internal counting of snapshot LVs.
1680   Fix vgmerge snapshot_count when source VG contains snapshots.
1681   Simplify clvmd-openais by using non-async saLckResourceLock.
1682   Fix internal LV counter when a snapshot is removed.
1683   Fix metadata corruption writing lvm1-formatted metadata with snapshots.
1684   Fix lvconvert -m0 allocatable space check.
1685
1686 Version 2.02.35 - 15th April 2008
1687 =================================
1688   Drop cached VG metadata before and after committing changes to it.
1689   Rename P_global to P_#global.
1690   Don't attempt remote metadata backups of non-clustered VGs. (2.02.29)
1691   Don't store fid in VG metadata cache to avoid clvmd segfault. (2.02.34)
1692   Update vgsplit tests to verify loosening of active LV restriction.
1693   Update vgsplit to only restrict split with active LVs involved in split.
1694   Add lv_is_active() to determine whether an lv is active.
1695
1696 Version 2.02.34 - 10th April 2008
1697 =================================
1698   Improve preferred_names lvm.conf example.
1699   Fix vgdisplay 'Cur LV' field to match lvdisplay output.
1700   Fix lv_count report field to exclude hidden LVs.
1701   Add vg_is_clustered() helper function.
1702   Fix vgsplit to only move hidden 'snapshotN' LVs when necessary.
1703   Update vgsplit tests for lvnames on the cmdline.
1704   Update vgsplit man page to reflect lvnames on the cmdline.
1705   Update vgsplit to take "-n LogicalVolumeName" on the cmdline.
1706   Use clustered mirror log with pvmove in clustered VGs, if available.
1707   Fix some pvmove error status codes.
1708   Fix vgsplit error paths to release vg_to lock.
1709   Indicate whether or not VG is clustered in vgcreate log message.
1710   Mention default --clustered setting in vgcreate man page.
1711   Add config file overrides to clvmd when it reads the active LVs list.
1712   Fix vgreduce to use vg_split_mdas to check sufficient mdas remain.
1713   Add (empty) orphan VGs to lvmcache during initialisation.
1714   Fix orphan VG name used for format_pool.
1715   Create a fid for internal orphan VGs.
1716   Update lvmcache VG lock state for all locking types now.
1717   Fix output if overriding command_names on cmdline.
1718   Add detection of clustered mirror log capability.
1719   Add check to vg_commit() ensuring VG lock held before writing new VG metadata.
1720   Add validation of LV name to pvmove -n.
1721   Make clvmd refresh the context correctly when lvm.conf is updated.
1722   Add some basic internal VG lock validation.
1723   Add per-command flags to control which commands use the VG metadata cache.
1724   Fix vgsplit locking of new VG (2.02.30).
1725   Avoid erroneous vgsplit error message for new VG. (2.02.29)
1726   Suppress duplicate message when lvresize fails because of invalid vgname.
1727   Cache VG metadata internally while VG lock is held.
1728   Fix redundant lvresize message if vg doesn't exist.
1729   Fix another allocation bug with clvmd and large node IDs.
1730   Add find_lv_in_lv_list() and find_pv_in_pv_list().
1731   Fix uninitialised variable in clvmd that could cause odd hangs.
1732   Add vgmerge tests.
1733   Add pvseg_is_allocated() for identifying a PV segment allocated to a LV.
1734   Add list_move() for moving elements from one list to another.
1735   Add 'is_reserved_lvname()' for identifying hidden LVs.
1736   Correct command name in lvmdiskscan man page.
1737   clvmd no longer crashes if it sees nodeids over 50.
1738   Fix potential deadlock in clvmd thread handling.
1739   Refactor text format initialisation into _init_text_import.
1740   Escape double quotes and backslashes in external metadata and config data.
1741   Add functions for escaping double quotes in strings.
1742   Rename count_chars_len to count_chars.
1743   Use return_0 in a couple more places.
1744   Correct a function name typo in _line_append error message.
1745   Include limits.h in clvmd so it compiles with newer headers.
1746   Add VirtIO disks (virtblk) to filters.
1747   Fix resetting of MIRROR_IMAGE and VISIBLE_LV after removal of LV. (2.02.30)
1748   Fix remove_layer_from_lv to empty the LV before removing it. (2.02.30)
1749   Add missing no-longer-used segs_using_this_lv test to check_lv_segments.
1750   Remove redundant non-NULL tests before calling free in clvmd.c.
1751   Avoid a compiler warning: make is_orphan's parameter const.
1752   Fix lvconvert detection of mirror conversion in progress. (2.02.30)
1753   Avoid automatic lvconvert polldaemon invocation when -R specified. (2.02.30)
1754   Fix 'pvs -a' to detect VGs of PVs without metadata areas.
1755   Divide up internal orphan volume group by format type.
1756   Update usage message for clvmd.
1757   Fix clvmd man page not to print <br> and clarified debug options.
1758   Fix lvresize to support /dev/mapper prefix in the LV name.
1759   Fix unfilled parameter passed to fsadm from lvresize.
1760   Update fsadm to call lvresize if the partition size differs (with option -l).
1761   Fix fsadm to support VG/LV names.
1762
1763 Version 2.02.33 - 31st January 2008
1764 ===================================
1765   Fix mirror log name construction during lvconvert. (2.02.30)
1766   Make monitor_dev_for_events recurse through the stack of LVs.
1767   Clean up some more compiler warnings.
1768   Some whitespace tidy-ups.
1769   Use stack return macros throughout.
1770   Rely upon internally-cached PV labels while corresponding VG lock is held.
1771
1772 Version 2.02.32 - 29th January 2008
1773 ===================================
1774   Fix two check_lv_segments error messages to show whole segment.
1775   Refactor mirror log attachment code.
1776   Fix internal metadata corruption in lvchange --resync. (2.02.30)
1777   Fix new parameter validation in vgsplit and test mode. (2.02.30)
1778   Remove redundant cnxman-socket.h file from clvmd directory.
1779   Fix pvs, vgs, lvs error exit status on some error paths.
1780
1781 Version 2.02.31 - 19th January 2008
1782 ===================================
1783   Fix lvcreate --nosync not to wait for non-happening sync. (2.02.30)
1784   Add very_verbose lvconvert messages.
1785   Avoid readahead error message with default setting of lvcreate -M1. (2.02.29)
1786
1787 Version 2.02.30 - 17th January 2008
1788 ===================================
1789   Set default readahead to twice maximium stripe size.
1790   Reinstate VG extent size and stripe size defaults (halved). (2.02.29)
1791   Add lists of stacked LV segments using each LV to the internal metadata.
1792   Change vgsplit -l (for unimplemented --list) into --maxlogicalvolumes.
1793   Fix process_all_pvs to detect non-orphans with no MDAs correctly.
1794   Don't use block_on_error with mirror targets version 1.12 and above.
1795   Update vgsplit to accept vgcreate options when new VG is destination.
1796   Update vgsplit to accept existing VG as destination.
1797   lvconvert waits for completion of initial sync by default.
1798   Refactor vgcreate for parameter validation and add tests.
1799   Add new convert_lv field to lvs output.
1800   Print warning when lvm tools are running as non-root.
1801   Add snapshot dmeventd library (enables dmeventd snapshot monitoring).
1802   Prevent pvcreate from overwriting MDA-less PVs belonging to active VGs.
1803   Fix a segfault if using pvs with --all argument. (2.02.29)
1804   Update --uuid argument description in man pages.
1805   Fix vgreduce PV list processing not to process every PV in the VG. (2.02.29)
1806   Extend lvconvert to use polldaemon.
1807   Add support for stacked mirrors.
1808   Major restructuring of pvmove and lvconvert layer manipulation code.
1809   Replace tools/fsadm with scripts/fsadm.sh.
1810   Append fields to report/pvsegs_cols_verbose.
1811   Permit LV segment fields with PV segment reports.
1812   Add seg_start_pe and seg_pe_ranges to reports.
1813
1814 Version 2.02.29 - 5th December 2007
1815 ===================================
1816   Make clvmd backup vg metadata on remote nodes.
1817   Refactor pvmove allocation code.
1818   Decode cluster locking state in log message.
1819   Change file locking state messages from debug to very verbose.
1820   Fix --addtag to drop @ prefix from name.
1821   Stop clvmd going haywire if a pre_function fails.
1822   Convert some vg_reads into vg_lock_and_reads.
1823   Avoid nested vg_reads when processing PVs in VGs and fix associated locking.
1824   Accept sizes with --readahead argument.
1825   Store size arguments as sectors internally.
1826   Attempt to remove incomplete LVs with lvcreate zeroing/activation problems.
1827   Add read_ahead activation code.
1828   Add activation/readahead configuration option and FMT_RESTRICTED_READAHEAD.
1829   Extend readahead arg to accept "auto" and "none".
1830   Add lv_read_ahead and lv_kernel_read_ahead fields to reports and lvdisplay.
1831   Prevent lvconvert -s from using same LV as origin and snapshot.
1832   Fix human-readable output of odd numbers of sectors.
1833   Add pv_mda_free and vg_mda_free fields to reports for raw text format.
1834   Add LVM2 version to 'Generated by' comment in metadata.
1835   Show 'not usable' space when PV is too large for device in pvdisplay.
1836   Ignore and fix up any excessive device size found in metadata.
1837   Fix error message when fixing up PV size in lvm2 metadata (2.02.11).
1838   Fix orphan-related locking in pvdisplay and pvs.
1839   Fix missing VG unlocks in some pvchange error paths.
1840   Add some missing validation of VG names.
1841   Rename validate_vg_name() to validate_new_vg_name().
1842   Change orphan lock to VG_ORPHANS.
1843   Change format1 to use ORPHAN as orphan VG name.
1844   Convert pvchange, pvdisplay, pvscan to use is_orphan()
1845   Add is_orphan_vg() and change all hard-coded checks to use it.
1846   Detect md superblocks version 1.0, 1.1 and 1.2.
1847   Add _alloc_pv() and _free_pv() from _pv_create() code and fix error paths.
1848   Add pv_dev_name() to access PV device name.
1849   Add const attributes to pv accessor functions.
1850   Refactor vg_add_snapshot() and lv_create_empty().
1851   Handle new sysfs subsystem/block/devices directory structure.
1852   Run test with LVM_SYSTEM_DIR pointing to private root and /dev dirs.
1853   Fix a bug in lvm_dump.sh checks for lvm/dmsetup binaries.
1854   Fix underquotations in lvm_dump.sh.
1855   Refactor lvcreate stripe and mirror parameter validation.
1856   Print --help output to stdout, not stderr.
1857   After a cmdline processing error, don't print help text but suggest --help.
1858   Add %PVS extents option to lvresize, lvextend, and lvcreate.
1859   Add 'make check' to run tests in new subdirectory 'test'.
1860   Moved the obsolete test subdirectory to old-tests.
1861   Cope with relative paths in configure --with-dmdir.
1862   Remove no-longer-correct restrictions on PV arg count with stripes/mirrors.
1863   Fix strdup memory leak in str_list_dup().
1864   Link with -lpthread when static SELinux libraries require that.
1865   Detect command line PE values that exceed their 32-bit range.
1866   Include strerror string in dev_open_flags' stat failure message.
1867   Move guts of pvresize into library.
1868   Avoid error when --corelog is provided without --mirrorlog. (2.02.28)
1869   Correct --mirrorlog argument name in man pages (not --log).
1870   Clear MIRROR_NOTSYNCED LV flag when converting from mirror to linear.
1871   Modify lvremove to prompt for removal if LV active on other cluster nodes.
1872   Add '-f' to vgremove to force removal of VG even if LVs exist.
1873
1874 Version 2.02.28 - 24th August 2007
1875 ==================================
1876   Fix clvmd logging so you can get lvm-level debugging out of it.
1877   Introduce VG_GLOBAL lock type for vgscan/pvscan to trigger clvmd -R.
1878   Change locking_flags from int to uint32_t.
1879   Fix clvmd -R, so it fully refreshes the caches.
1880   Change lvconvert_mirrors to use mirror segtype not striped.
1881   Fix lvconvert_mirrors detection of number of existing mirrors.
1882   Clean up numerous compiler warnings that appeared in recent releases.
1883   Remove several unused parameters from _allocate().
1884   Only permit --force, --verbose and --debug arguments to be repeated.
1885   Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1.
1886   Move guts of vgremove and lvremove into library, including yes_no_prompt.
1887   Allow clvmd debug to be turned on in a running daemon using clvmd -d [-C].
1888   Update to use autoconf 2.61, while still supporting 2.57.
1889   Add more cluster info to lvmdump.
1890   Add further const attributes throughout.
1891   Add support for renaming mirrored LVs.
1892   Factor out core of lvrename() to library function.
1893   Add --mirrorlog argument to specify log type for mirrors.
1894   Don't attempt to monitor devices if their creation failed in _lv_activate.
1895   Don't leak a file descriptor in fcntl_lock_file() when fcntl fails.
1896   Replace create_dir with dm_create_dir.
1897   Detect stream write failure reliably with lvm_fclose using dm_fclose.
1898   Fix clvmd if compiled with gulm support. (2.02.26)
1899   Fix lvdisplay man page to say LV size is reported in sectors, not KB.
1900   Add vg_lock_and_read() external library function.
1901   Fix loading of persistent cache if cache_dir is used. (2.02.23)
1902   Reduce _compare_paths lstat error message from log_error to log_very_verbose.
1903   Create util.h with last_path_component replacing strdup + basename.
1904   Use gcc's printf attribute wherever possible.
1905   In _line_append, use "sizeof buf - 1" rather than equivalent "4095".
1906   Introduce is_same_inode macro, now including a comparison of st_dev.
1907   Don't leak a file descriptor in _lock_file() when flock fails.
1908   Add SUN's LDOM virtual block device (vdisk) and ps3disk to filters.
1909   Split metadata-external.h out from metadata.h for the tools to use.
1910
1911 Version 2.02.27 - 17th July 2007
1912 ================================
1913   Fix snapshot cow area deactivation if origin is not active. (2.02.13)
1914   Fix configure libdevmapper.h check when --with-dmdir is used.
1915   Turn _add_pv_to_vg() into external library function add_pv_to_vg().
1916   Add pv_by_path() external library function.
1917   Tidy clvmd-openais of redundant bits, and improve an error report.
1918   Cope with find_seg_by_le() failure in check_lv_segments().
1919   Call dev_iter_destroy() if _process_all_devs() is interrupted by sigint.
1920   Add vg_mda_count and pv_mda_count columns to reports.
1921   Fix dumpconfig to use log_print instead of stdout directly.
1922   Remove unused parameter 'fid' from _add_pv_to_vg.
1923   Add kernel and device-mapper targets versions to lvmdump.
1924   Replace BSD (r)index with C89 str(r)chr.
1925   Handle vgsplit of an entire VG as a vgrename.
1926   Reinitialise internal lvmdiskscan variables when called repeatedly.
1927   Fix missing lvm_shell symbol in lvm2cmd library. (2.02.23)
1928   Add vg_status function and clean up vg->status in tools directory.
1929   Add --ignoremonitoring to disable all dmeventd interaction.
1930   Remove get_ prefix from get_pv_* functions.
1931   clvmd-openais now uses cpg_local_get() to get nodeid, rather than Clm.
1932   Print warnings to stderr instead of stdout.
1933
1934 Version 2.02.26 - 15th June 2007
1935 ================================
1936   Update vgcfgrestore man page.
1937   Allow keyboard interrupt during user prompts when appropriate.
1938   Remove unused clvmd system-lv code.
1939   Replace many physical_volume struct dereferences with new get_pv_* functions.
1940   Suppress a benign compile-time warning.
1941   Convert find_pv_in_vg_by_uuid and pv_create to use PV handles.
1942   Add wrappers to some functions in preparation for external LVM library.
1943   Add -f to vgcfgrestore to list metadata backup files.
1944   Add vg_check_status to consolidate vg status checks and error messages.
1945   Add pvdisplay --maps implementation.
1946   Remove unsupported LVM1 options from vgcfgrestore man page.
1947   Update vgcfgrestore man page to show mandatory VG name.
1948   Update vgrename man page to include UUID and be consistent with lvrename.
1949   Add (experimental) OpenAIS support to clvmd.
1950   Fix deactivation code to follow dependencies and remove symlinks.
1951   Fix and clarify vgsplit error messages.
1952   Fix a segfault in device_is_usable() if a device has no table.
1953   Add some more debug messages to clvmd startup.
1954   Misc clvmd cleanups.
1955
1956 Version 2.02.25 - 27th April 2007
1957 =================================
1958   Fix get_config_uint64() to read a 64-bit value not a 32-bit one.
1959   Add -Wformat-security and change one fprintf() to fputs().
1960   Move regex functions into libdevmapper.
1961   Change some #include lines to search only standard system directories.
1962   Add devices/preferred_names config regex list for displayed device names.
1963   Free a temporary dir string in fcntl_lock_file() after use.
1964   Fix a dm_pool_destroy() in matcher_create().
1965   Introduce goto_bad macro.
1966   Fix warnings on x86_64 involving ptrdiff_t in log_error messages.
1967   Update pvck to include text metadata area and record detection.
1968   Add support functions for token counting in config file extracts.
1969   Update pvck to read labels on disk, with --labelsector parameter.
1970   Add count_chars and count_chars_len functions.
1971   Add /sys/block listings to lvm_dump.sh.
1972   Make lvm_dump.sh list /dev recursively.
1973   Fix thread race in clvmd.
1974   Add scan_sector param to label_read and _find_labeller.
1975   Make clvmd cope with quorum devices.
1976   Add extra internal error checking to clvmd.
1977   Add dev_read_circular.
1978   Add pvck command stub.
1979   Update lists of attribute characters in man pages.
1980   Change cling alloc policy attribute character from 'C' to l'.
1981   Fix creation and conversion of mirrors with tags.
1982   Fix vgsplit for lvm1 format (set and validate VG name in PVs metadata).
1983   Split metadata areas in vgsplit properly.
1984
1985 Version 2.02.24 - 19th March 2007
1986 =================================
1987   Fix processing of exit status in init scripts
1988   Fix vgremove to require at least one vg argument.
1989   Fix reading of striped LVs in LVM1 format.
1990   Flag nolocking as clustered so clvmd startup sees clustered LVs. (2.02.10)
1991   Add a few missing pieces of vgname command line validation.
1992   Support the /dev/mapper prefix on most command lines.
1993
1994 Version 2.02.23 - 8th March 2007
1995 ================================
1996   Fix vgrename active LV check to ignore differing vgids.
1997   Remove no-longer-used uuid_out parameter from activation info functions.
1998   Fix two more segfaults if an empty config file section encountered.
1999   Move .cache file into a new /etc/lvm/cache directory by default.
2000   Add devices/cache_dir & devices/cache_file_prefix, deprecating devices/cache.
2001   Create directory in fcntl_lock_file() if required.
2002   Exclude readline support from lvm.static.
2003   Fix a leak in a reporting error path (2.02.19).
2004
2005 Version 2.02.22 - 13th February 2007
2006 ====================================
2007   Correct -b and -P on a couple of man pages.
2008   Add global/units to example.conf.
2009   Fix loading of segment_libraries.
2010   If a PV reappears after it was removed from its VG, make it an orphan.
2011   Don't update metadata automatically if VGIDs don't match.
2012   Fix some vgreduce --removemissing command line validation.
2013
2014 Version 2.02.21 - 30th January 2007
2015 ===================================
2016   Add warning to lvm2_monitoring_init_rhel4 if attempting to stop monitoring.
2017   Fix vgsplit to handle mirrors.
2018   Reorder fields in reporting field definitions.
2019   Fix vgs to treat args as VGs even when PV fields are displayed.
2020   Fix md signature check to handle both endiannesses.
2021
2022 Version 2.02.20 - 25th January 2007
2023 ===================================
2024   dmeventd mirror sets ignore_suspended_devices and avoids scanning mirrors.
2025   Add devices/ignore_suspended_devices to ignore suspended dm devices.
2026   Add some missing close() and fclose() return code checks.
2027   Fix exit statuses of reporting tools (2.02.19).
2028   Add init script for dmeventd monitoring.
2029   lvm.static no longer interacts with dmeventd unless explicitly asked to.
2030   Add field definitions to report help text.
2031   Remove unnecessary cmd arg from target_*monitor_events().
2032   Add private variable to dmeventd shared library interface.
2033   Long-lived processes write out persistent dev cache in refresh_toolcontext().
2034   Fix refresh_toolcontext() always to wipe persistent device filter cache.
2035   Add is_long_lived to toolcontext.
2036   Add --clustered to man pages.
2037   Streamline dm_report_field_* interface.
2038   Change remaining dmeventd terminology 'register' to 'monitor'.
2039   Update reporting man pages.
2040   No longer necessary to specify alignment type for report fields.
2041
2042 Version 2.02.19 - 17th January 2007
2043 ===================================
2044   Fix a segfault if an empty config file section encountered.
2045   Move basic reporting functions into libdevmapper.
2046   Fix partition table processing after sparc changes (2.02.16).
2047   Fix cmdline PE range processing segfault (2.02.13).
2048   Some libdevmapper-event interface changes.
2049   Report dmeventd mirror monitoring status.
2050   Fix dmeventd mirror status line processing.
2051
2052 Version 2.02.18 - 11th January 2007
2053 ===================================
2054   Revised libdevmapper-event interface for dmeventd.
2055   Remove dmeventd mirror status line word limit.
2056   Use CFLAGS when linking so mixed sparc builds can supply -m64.
2057   Prevent permission changes on active mirrors.
2058   Print warning instead of error message if lvconvert cannot zero volume.
2059   Add snapshot options to lvconvert man page.
2060   dumpconfig accepts a list of configuration variables to display.
2061   Change dumpconfig to use --file to redirect output to a file.
2062   Avoid vgreduce error when mirror code removes the log LV.
2063   Remove 3 redundant AC_MSG_RESULTs from configure.in.
2064   Free memory in _raw_read_mda_header() error paths.
2065   Fix ambiguous vgsplit error message for split LV.
2066   Fix lvextend man page typo.
2067   Add configure --with-dmdir to compile against a device-mapper source tree.
2068   Use no flush suspending for mirrors.
2069   Add dmeventd_mirror register_mutex, tidy initialisation & add memlock.
2070   Fix create mirror with name longer than 22 chars.
2071   Fix some activate.c prototypes when compiled without devmapper.
2072   Fix dmeventd mirror to cope if monitored device disappears.
2073
2074 Version 2.02.17 - 14th December 2006
2075 ====================================
2076   Add missing pvremove error message when device doesn't exist.
2077   When lvconvert allocates a mirror log, respect parallel area constraints.
2078   Use loop to iterate through the now-ordered policy list in _allocate().
2079   Check for failure to allocate just the mirror log.
2080   Introduce calc_area_multiple().
2081   Support mirror log allocation when there is only one PV: area_count now 0.
2082   Fix detection of smallest area in _alloc_parallel_area() for cling policy.
2083   Add manpage entry for clvmd -T
2084   Fix gulm operation of clvmd, including a hang when doing lvchange -aey
2085   Fix hang in clvmd if a pre-command failed.
2086
2087 Version 2.02.16 - 1st December 2006
2088 ===================================
2089   Fix VG clustered read locks to use PR not CR.
2090   Adjust some alignments for ia64/sparc.
2091   Fix mirror segment removal to use temporary error segment.
2092   Always compile debug logging into clvmd.
2093   Add startup timeout to RHEL4 clvmd startup script.
2094   Add -T (startup timeout) switch to clvmd.
2095   Improve lvm_dump.sh robustness.
2096   Update lvm2create_initrd to support gentoo.
2097
2098 Version 2.02.15 - 21st November 2006
2099 ====================================
2100   Fix clvmd_init_rhel4 line truncation (2.02.14).
2101   Install lvmdump by default.
2102   Fix check for snapshot module when activating snapshot.
2103   Fix pvremove error path for case when PV is in use.
2104   Warn if certain duplicate config file entries are seen.
2105   Enhance lvm_dump.sh for sysreport integration and add man page.
2106   Fix --autobackup argument which could never disable backups.
2107   Fix a label_verify error path.
2108
2109 Version 2.02.14 - 10th November 2006
2110 ====================================
2111   Fix adjusted_mirror_region_size() to handle 64-bit size.
2112   Add some missing bounds checks on 32-bit extent counters.
2113   Add Petabyte and Exabyte support.
2114   Fix lvcreate error message when 0 extents requested.
2115   lvremove man page: volumes must be cluster inactive before being removed.
2116   Protect .cache manipulations with fcntl locking.
2117   Change .cache timestamp comparisons to use ctime.
2118   Fix mirror log LV writing to set all bits in whole LV.
2119   Fix clustered VG detection and default runlevels in clvmd_init_rhel4.
2120   Fix high-level free space check for partial allocations.
2121
2122 Version 2.02.13 - 27th October 2006
2123 ===================================
2124   Add couple of missing files to tools/Makefile CLEAN_TARGETS.
2125   When adding snapshot leave cow LV mapped device active after zeroing.
2126   Fix a clvmd debug message.
2127   Add dev_flush() to set_lv().
2128   Add lvchange --resync.
2129   Perform high-level free space check before each allocation attempt.
2130   Don't allow a node to remove an LV that's exclusively active on anther node.
2131   Cope if same PV is included more than once in cmdline PE range list.
2132   Set PV size to current device size if it is found to be zero.
2133   Add segment parameter to target_present functions.
2134
2135 Version 2.02.12 - 16th October 2006
2136 ===================================
2137   Fix pvdisplay to use vg_read() for non-orphans.
2138   Fall back to internal locking if external locking lib is missing or fails.
2139   Retain activation state after changing LV minor number with --force.
2140   Propagate clustered flag in vgsplit and require resizeable flag.
2141
2142 Version 2.02.11 - 12th October 2006
2143 ===================================
2144   Add clvmd function to return the cluster name. not used by LVM yet.
2145   Add cling allocation policy.
2146   Change _check_contiguous() to use _for_each_pv().
2147   Extend _for_each_pv() to allow termination without error.
2148   Abstract _is_contiguous().
2149   Remove duplicated pv arg from _check_contiguous().
2150   Accept regionsize with lvconvert.
2151   Add report columns with underscore before field names ending 'size'.
2152   Correct regionsize default on lvcreate man page (MB).
2153   Fix clvmd bug that could cause it to die when a node with a long name crashed.
2154   Add device size to text metadata.
2155   Fix format_text mda_setup pv->size and pv_setup pe_count calculations.
2156   Fix _for_each_pv() for mirror with core log.
2157   Add lvm_dump.sh script to create a tarball of debugging info from a system.
2158   Capture error messages in clvmd and pass them back to the user.
2159   Remove unused #defines from filter-md.c.
2160   Make clvmd restart init script wait until clvmd has died before starting it.
2161   Add -R to clvmd which tells running clvmds to reload their device cache.
2162   Add LV column to reports listing kernel modules needed for activation.
2163   Show available fields if report given invalid field. (e.g. lvs -o list)
2164   Add timestamp functions with --disable-realtime configure option.
2165   Add %VG, %LV and %FREE suffices to lvcreate/lvresize --extents arg.
2166   Fix two potential NULL pointer derefs in error cases in vg_read().
2167   Separate --enable-cluster from locking lib options in lvmconf.sh.
2168   Add a missing comma in lvcreate man page.
2169
2170 Version 2.02.10 - 19th September 2006
2171 =====================================
2172   Fix lvconvert mirror change case detection logic.
2173   Fix mirror log detachment so it correctly becomes a standalone LV.
2174   Extend _check_contiguous() to detect single-area LVs.
2175   Include mirror log (untested) in _for_each_pv() processing.
2176   Use MIRROR_LOG_SIZE constant.
2177   Remove struct seg_pvs from _for_each_pv() to generalise.
2178   Avoid adding duplicates to list of parallel PVs to avoid.
2179   Fix several incorrect comparisons in parallel area avoidance code.
2180   Fix segment lengths when flattening existing parallel areas.
2181   Log existing parallel areas prior to allocation.
2182   Fix mirror log creation when activation disabled.
2183   Don't attempt automatic recovery without proper locking.
2184   When using local file locking, skip clustered VGs.
2185   Add fallback_to_clustered_locking and fallback_to_local_locking parameters.
2186   lvm.static uses built-in cluster locking instead of external locking.
2187   Don't attempt to load shared libraries if built statically.
2188   Change default locking_lib to liblvm2clusterlock.so.
2189   Add skip_dev_dir() to process command line VGs.
2190   Stop clvmd complaining about nodes that have left the cluster.
2191   Move lvm_snprintf(), split_words() and split_dm_name() into libdevmapper.
2192   Add lvconvert man page.
2193   Add mirror options to man pages.
2194   Prevent mirror renames.
2195   Move CMDLIB code into separate file and record whether static build.
2196
2197 Version 2.02.09 - 17th August 2006
2198 ==================================
2199   Fix PE_ALIGN for pagesize over 32KB.
2200   Separate out LVM1_PE_ALIGN and pe_align().
2201   Add lvm_getpagesize wrapper.
2202   Add --maxphysicalvolumes to vgchange.
2203
2204 Version 2.02.08 - 15th August 2006
2205 ==================================
2206   Add checks for duplicate LV name, lvid and PV id before writing metadata.
2207   Report all sanity check failures, not just the first.
2208   Fix missing lockfs on first snapshot creation.
2209   Add unreliable --trustcache option to reporting commands.
2210   Fix locking for mimage removal.
2211   Fix clvmd_init_rhel4 'status' exit code.
2212
2213 Version 2.02.07 - 17th July 2006
2214 ================================
2215   Fix activation logic in lvchange --persistent.
2216   Don't ignore persistent minor numbers when activating.
2217   Use RTLD_GLOBAL when loading shared libraries.
2218   Add some forgotten memlock checks to _vg_read to protect against full scans.
2219   Add mutex to dmeventd_mirror to avoid concurrent execution.
2220   Fix vgreduce --removemissing to return success if VG is already consistent.
2221   Fix return code if VG specified on command line is not found.
2222   Fix PV tools to include orphaned PVs in default output again.
2223   Fixed unaligned access when using clvm.
2224   Fix an extra dev_close in a label_read error path.
2225   Append patches to commit emails.
2226   Fix target_register_events args.
2227   Prevent snapshots of mirrors.
2228   Add DISTCLEAN_TARGETS to make template for configure.h.
2229   More fixes to error paths.
2230   Fix lvcreate corelog validation.
2231   Add --config for overriding most config file settings from cmdline.
2232   Quote arguments when printing command line.
2233   Remove linefeed from 'initialising logging' message.
2234   Add 'Completed' debug message.
2235   Don't attempt library exit after reloading config files.
2236   Always compile with libdevmapper, even if device-mapper is disabled.
2237
2238 Version 2.02.06 - 12th May 2006
2239 ===============================
2240   Propagate --monitor around cluster.
2241   Add --monitor to vgcreate and lvcreate to control dmeventd registration.
2242   Filter LCK_NONBLOCK in clvmd lock_vg.
2243   Add --nosync to lvcreate with LV flag NOTSYNCED.
2244   Use mirror's uuid for a core log.
2245   Add mirror log fault-handling policy.
2246   Improve mirror warning messages and tidy dmeventd syslog output.
2247   Propagate nosync flag around cluster.
2248   Allow vgreduce to handle mirror log failures.
2249   Add --corelog to lvcreate and lvconvert.
2250   Create a log header for replacement in-sync mirror log.
2251   Use set_lv() and dev_set() to wipe sections of devices.
2252   Add mirror_in_sync() flag to avoid unnecessary resync on activation.
2253   Add mirror_library description to example.conf.
2254   Fix uuid_from_num() buffer overrun.
2255   Make SIZE_SHORT the default for display_size().
2256   Fix some memory leaks in error paths found by coverity.
2257   Use C99 struct initialisers.
2258   Move DEFS into configure.h.
2259   Clean-ups to remove miscellaneous compiler warnings.
2260   Improve stripe size validation.
2261   Increase maximum stripe size limit to physical extent size for lvm2 metadata.
2262   Fix activation code to check for pre-existing mirror logs.
2263   Tighten region size validation.
2264   Ignore empty strings in config files.
2265   Require non-zero regionsize and document parameter on lvcreate man page.
2266   Invalidate cache if composition of VG changed externally.
2267
2268 Version 2.02.05 - 21st April 2006
2269 =================================
2270   Fix vgid string termination in recent cache code.
2271
2272 Version 2.02.04 - 19th April 2006
2273 =================================
2274   Check for libsepol.
2275   Add some cflow & scope support.
2276   Separate out DEFS from CFLAGS.
2277   Remove inlines and use unique function names.
2278
2279 Version 2.02.03 - 14th April 2006
2280 =================================
2281   vgrename accepts vgid and exported VG.
2282   Add --partial to pvs.
2283   When choosing between identically-named VGs, also consider creation_host.
2284   Provide total log suppression with 2.
2285   Fix vgexport/vgimport to set/reset PV exported flag so pv_attr is correct.
2286   Add vgid to struct physical_volume and pass with vg_name to some functions.
2287   If two or more VGs are found with the same name, use one that is not exported.
2288   Whenever vgname is captured, also capture vgid and whether exported.
2289   Remove an incorrect unlock_vg() from process_each_lv().
2290   Update extent size information in vgchange and vgcreate man pages.
2291   Introduce origin_from_cow() and lv_is_visible().
2292   pvremove without -f now fails if there's no PV label.
2293   Support lvconvert -s.
2294   Suppress locking library load failure message if --ignorelockingfailure.
2295   Propagate partial mode around cluster.
2296   Fix archive file expiration.
2297   Fix dmeventd build.
2298   clvmd now uses libcman rather than cman ioctls.
2299   clvmd will allow new cman to shutdown on request.
2300
2301 Version 2.02.02 - 7th February 2006
2302 ===================================
2303   Add %.so: %.a make template rule.
2304   Switchover library building to use LIB_SUFFIX.
2305   Only do lockfs filesystem sync when suspending snapshots.
2306   Always print warning if activation is disabled.
2307   vgreduce removes mirror images.
2308   Add --mirrorsonly to vgreduce.
2309   vgreduce replaces active LVs with error segment before removing them.
2310   Set block_on_error parameter if available.
2311   Add target_version.
2312   Add details to format1 'Invalid LV in extent map' error message.
2313   Fix lvscan snapshot full display.
2314   Bring lvdisplay man page example into line.
2315   Add mirror dmeventd library.
2316   Add some activation logic to remove_mirror_images().
2317   lvconvert can remove specified PVs from a mirror.
2318   lvconvert turns an existing LV into a mirror.
2319   Allow signed mirrors arguments.
2320   Move create_mirror_log() into toollib.
2321   Determine parallel PVs to avoid with ALLOC_NORMAL allocation.
2322   Fix lv_empty.
2323
2324 Version 2.02.01 - 23rd November 2005
2325 ====================================
2326   Fix lvdisplay cmdline to accept snapshots.
2327   Fix open RO->RW promotion.
2328   Fix missing vg_revert in lvcreate error path.
2329
2330 Version 2.02.00 - 10th November 2005
2331 ====================================
2332   Extend allocation areas to avoid overflow with contiguous with other PVs.
2333   Stop lvcreate attempting to wipe zero or error segments.
2334   Added new lvs table attributes.
2335   Separated out activation preload.
2336   Moved activation functions into libdevmapper.
2337   Fixed build_dm_name.
2338   Add return macros.
2339   Added xen xvd devices.
2340   Clear up precommitted metadata better.
2341   A pvresize implementation.
2342   Fix contiguous allocation when there are no preceding segments.
2343   Add mirror_seg pointer to lv_segment struct.
2344   Only keep a device open if it's known to belong to a locked VG.
2345   Fix lvdisplay to show all mirror destinations.
2346   Replacement suspend code using libdevmapper dependency tree.
2347   Add DEFS to make.tmpl.
2348   Use dm_is_dm_major instead of local copy.
2349   Allow mapped devices to be used as PVs.
2350   Move set_selinux_context into libdevmapper.
2351   Fix automatic text metadata buffer expansion (using macro).
2352   Cache formatted text metadata buffer between metadata area writes.
2353   Add pe_start field to pvs.
2354   Add 'LVM-' prefix to uuids.
2355   Split lv_segment_area from lv_segment to permit extension.
2356   Replacement deactivation code using libdevmapper dependency tree.
2357   Simplify dev_manager_info().
2358   Attempt to load missing targets using modprobe.
2359   Add -a to lvscan.
2360   Move mknodes into libdevmapper.
2361   Move bitset, hash, pool and dbg_malloc into libdevmapper.
2362
2363 Version 2.01.15 - 16th October 2005
2364 ===================================
2365   Refuse to run pvcreate/pvremove on devices we can't open exclusively.
2366   Use ORPHAN lock definition throughout.
2367   Validate chunksize in lvcreate.
2368   Reduce chunksize limit to 512k.
2369   Fix chunksize field in reports.
2370   Don't hide snapshots from default 'lvs' output.
2371   Add is_dm_major() for use in duplicate device detection in lvmcache_add().
2372   Really switch device number in lvmcache when it says it is doing so.
2373   Option for bitset memory allocation using malloc as well as pool.
2374   Don't assume exactly two mirrors when parsing mirror status.
2375   Suppress fsync() error message on filesystems that don't support it.
2376   Fix yes_no_prompt() error handling.
2377   Add lvm.conf comment warning against multiple filter lines.
2378   Tidy lvmconf.sh.
2379   Add format1 dev_write debug messages.
2380   Add clustered VG attribute to report.
2381   Move lvconvert parameters into struct lvconvert_params.
2382   Add clustered VG flag to LV lock requests.
2383   Change LV locking macros to take lv instead of lvid.
2384   Prepend 'cluster' activation parameter to mirror log when appropriate.
2385   Pass exclusive flag to lv_activate and on to target activation code.
2386   Prevent snapshot creation in a clustered VG for now.
2387   Factor out adjusted_mirror_region_size() and generate_log_name_format().
2388   Move compose_log_line() into mirror directory.
2389   Factor out _get_library_path().
2390   Don't kill idling clvmd threads.
2391   clvmd no longer takes out locks for non-clustered LVs.
2392   Recognise ATA over Ethernet (aoe) devices.
2393
2394 Version 2.01.14 - 4th August 2005
2395 =================================
2396   Fix lvconvert PV parameter in help string.
2397   Prevent snapshots getting activated in a clustered VG.
2398   Separate out _build_dev_string.
2399   Move zero_lv to toollib.
2400   Fix pool format handler to work with pv segment code.
2401
2402 Version 2.01.13 - 13th July 2005
2403 ================================
2404   Fix pvmove segment splitting.
2405   Abstract vg_validate.
2406   Only make one attempt at contiguous allocation.
2407   Fix lvm1 format metadata read.
2408   Fix lvm1 format non-mirror lvcreate.
2409
2410 Version 2.01.12 - 14th June 2005
2411 ================================
2412   Various allocation-related pvmove fixes.
2413   Log an error if clvmd can't resolve a host name got from CCS.
2414   Fix potential spin loop in clvmd.
2415
2416 Version 2.01.11 - 13th June 2005
2417 ================================
2418   Added lvmconf.sh.
2419   Use matchpathcon mode parameter.
2420   Don't defer closing dead FDs in clvmd.
2421   Remove hard-coded 64k text metadata writing restriction.
2422   Make VG name restrictions consistent.
2423   Introduce lvconvert.  So far only removes mirror images.
2424   Allow mirror images to be resized.
2425   Allow mirror images to have more than one segment.
2426   Centralise restrictions on LV names.
2427   Always insert an intermediate layer for mirrors.
2428   Suppress hidden LVs from reports unless --all is given.
2429   Use square brackets for hidden LVs in reports.
2430   Allow the creation of mirrors with contiguous extents.
2431   Always perform sanity checks against metadata before committing it to disk.
2432   Split lv_extend into two steps: choosing extents + allocation to LV(s).
2433   Add mirror log region size to metadata.
2434   Use list_iterate_items throughout and add list*back macros.
2435   Introduce seg_ macros to access areas.
2436   Add segtype_is_ macros.
2437   Support tiny metadata areas for pool conversions.
2438   Mirror activation handles disk log as well as core.
2439   Activation code recognises mirror log dependency.
2440   Add mirror_log and regionsize fields to report.
2441   Fix non-orphan pvchange -u.
2442   Fix vgmerge to handle duplicate LVIDs.
2443   Move archiver code from tools into library.
2444   vgscan/change/display/vgs automatically create metadata backups if needed.
2445   Merge cloned allocation functions.
2446   Fix contiguous allocation policy with linear.
2447   Cope with missing format1 PVs again.
2448   Remove lists of free PV segments.
2449   Simplify pv_maps code and remove slow bitset algorithm.
2450   Red-Hat-ify the clvmd rhel4 initscript.
2451   %Zu->%zu
2452   Fix loopfiles alias alloc & mem debugging.
2453   Un-inline dbg_strdup.
2454   lv_reduce tidying.
2455   Remove some unnecessary parameters.
2456   Introduce seg_is macros.
2457
2458 Version 2.01.10 - 3rd May 2005
2459 ==============================
2460   Don't create backup and archive dirs till needed.
2461   Reinstate full PV size when removing from VG.
2462   Support loopfiles for testing.
2463   Tidy lv_segment interface.
2464   pv_segment support.
2465   vgchange --physicalextentsize
2466   Internal snapshot restructuring.
2467   Remove unused internal non-persistent snapshot option.
2468   Allow offline extension of snapshot volumes.
2469   Move from 2-step to 3-step on-disk metadata commit.
2470   Scan ramdisks too and allow non-O_DIRECT fallback.
2471   Annotate, tidy and extend list.h.
2472   Alignment tidying.
2473   Make clvmd work around some "bugs" in gulm's node state notifications.
2474   Tidy clvmd's SIGHUP handler
2475
2476 Version 2.01.09 - 4th April 2005
2477 ================================
2478   Add --ignorelockingfailure to vgmknodes.
2479   clvmd: Don't allow user operations to start until the lvm thread is fully up.
2480   clvmd-gulm: set KEEPALIVE on sockets.
2481
2482 Version 2.01.08 - 22nd March 2005
2483 =================================
2484   Add clustered attribute so vgchange can identify clustered VGs w/o locking.
2485   Improve detection of external changes affecting internal cache.
2486   Add 'already in device cache' debug message.
2487   Add -a to pvdisplay -C.
2488   Avoid rmdir opendir error messsages when dir was already removed.
2489   Tighten signal handlers.
2490   Avoid some compiler warnings.
2491   Additional rename failure error message.
2492   read/write may be macros.
2493   clvmd: don't take out lvm thread lock at startup, it only protects jobs list.
2494
2495 Version 2.01.07 - 8th March 2005
2496 ================================
2497   Cope with new devices appearing by rescanning /dev if a uuid can't be found.
2498   Remove DESTDIR from LVM_SHARED_PATH.
2499   clvmd fixes: make FDs close-on-exec
2500                gulm unlocks VG & orphan locks at startup in case they are stale
2501                gulm now unlocks VG & orphan locks if client dies.
2502
2503 Version 2.01.06 - 1st March 2005
2504 ================================
2505   Suppress 'open failed' error messages during scanning.
2506   Option to suppress warnings of file descriptors left open.
2507   Fix default value of metadatacopies in documentation (2->1).
2508   Fix clvmd-gulm locking.
2509   ./configure --enable-debug now enables debugging code in clvmd.
2510   Fix clvmd-gulm node up/down code so it actually works.
2511   clvmd-gulm now releases locks when shut down.
2512
2513 Version 2.01.05 - 18th February 2005
2514 ====================================
2515   Static binary invokes dynamic binary if appropriate.
2516   Make clvmd config check a little more tolerant.
2517   gulm clvmd can now cope with >1 message arriving in a TCP message.
2518
2519 Version 2.01.04 - 9th February 2005
2520 ===================================
2521   Add fixed offset to imported pool minor numbers.
2522   Update binary pathnames in clvmd_init_rhel4.
2523   lvm2cmd.so should skip the check for open fds.
2524   Remove unused -f from pvmove.
2525   Gulm clvmd doesn't report "connection refused" errors.
2526   clvmd does a basic config file sanity check at startup.
2527   Fix potential thread shutdown race in clvmd.
2528
2529 Version 2.01.03 - 1st February 2005
2530 ===================================
2531   More 64-bit display/report fixes.
2532   More informative startup mesg if can't create /etc/lvm.
2533   Fix snapshot device size bug (since 2.01.01).
2534   clvmd announces startup and cluster connection in syslog.
2535   Gulm clvmd doesn't hang trying to talk to a rebooted node.
2536   Gulm clvmd doesn't print cman error on startup.
2537
2538 Version 2.01.02 - 21st January 2005
2539 ===================================
2540   Update clvmd_init_rhel4: use lvm.static and don't load dlm.
2541   Fix some size_t printing.
2542   Fix 64 bit xlate consts.
2543   Split out pool sptype_names to avoid unused const.
2544   Always fail if random id generation fails.
2545   Recognise gnbd devices.
2546   Fix clvmd startup bug introduced in cman/gulm amalgamation.
2547   Improve reporting of node-specific locking errors.
2548
2549 Version 2.01.01 - 19th January 2005
2550 ===================================
2551   Fix clvmd lv_info_by_lvid open_count.
2552   Store snapshot and origin sizes separately.
2553   Update vgcreate man page.
2554
2555 Version 2.01.00 - 17th January 2005
2556 ===================================
2557   Fix vgscan metadata auto-correction.
2558   Only ask libdevmapper for open_count when we need it.
2559   Adjust RHEL4 clvmd init script priority.
2560   Enable building of CMAN & GULM versions of clvmd into a single binary
2561
2562 Version 2.00.33 - 7th January 2005
2563 ==================================
2564   pvcreate wipes first 4 sectors unless given --zero n.
2565   gulm clvmd now uses new ccsd key names.
2566   gulm clvmd now doesn't ignore the first node in cluster.conf
2567   Improve clvmd failure message if it's already running.
2568   Allow user to kill clvmd during initialisation.
2569   Fix off-by-one error in cluster_locking that could cause read hangs.
2570
2571 Version 2.00.32 - 22nd December 2004
2572 ====================================
2573   Drop static/dl restriction for now.
2574   Fix an error fprintf.
2575   Fix vgdisplay -s. Breaks (undocumented) lvs/pvs/vgs -s instead for now.
2576   Fix device reference counting on re-opens.
2577   Ignore sysfs symlinks when DT_UNKNOWN.
2578   Add clvmd init script for RHEL4.
2579   Skip devices that are too small to be PVs.
2580   Fix pvchange -x segfault with lvm2-format orphan.
2581   Cope with empty msdos partition tables.
2582   Add CONTRIBUTORS file.
2583
2584 Version 2.00.31 - 12th December 2004
2585 ====================================
2586   Reopen RO file descriptors RW if necessary.
2587
2588 Version 2.00.30 - 10th December 2004
2589 ====================================
2590   Additional device-handling debug messages.
2591   Additional verbosity level -vvvv includes line numbers and backtraces.
2592   Verbose messages now go to stderr not stdout.
2593   Close any stray file descriptors before starting.
2594   Refine partitionable checks for certain device types.
2595   Allow devices/types to override built-ins.
2596   Fix lvreduce man page .i->.I
2597   Fix vgsplit man page title.
2598   Fix clvmd man makefile.
2599   Extend dev_open logging.
2600   Make clvmd_fix_conf.sh UNDOable.
2601
2602 Version 2.00.29 - 27th November 2004
2603 ====================================
2604   xlate compilation fix.
2605
2606 Version 2.00.28 - 27th November 2004
2607 ====================================
2608   Fix partition table & md signature detection.
2609   Minor configure/makefile tidy.
2610   Export version.h from tools for clvmd.
2611
2612 Version 2.00.27 - 24th November 2004
2613 ====================================
2614   Trap large memory allocation requests.
2615   Fix to partition table detection code.
2616   Improve filter debug mesgs.
2617   Make clvmd_fix_conf.sh UNDOable
2618
2619 Version 2.00.26 - 23rd November 2004
2620 ====================================
2621   Improve pool debugging stats.
2622   Detect partition table signature.
2623   pvcreate wipes md superblocks. (With --uuid or --restorefile it prompts.)
2624   Separate out md superblock detection code.
2625   Prevent snapshot origin resizing.
2626   Improve a vgremove error message.
2627   Update some man pages.
2628   Allow y/n with -ae args (exclusive activation).
2629   Fixes to lvcreate vgname parsing.
2630   Fix dm_name string size calculation.
2631   Improve clvmd error reporting during startup.
2632   Make clvmd cope with large gaps in node numbers IDs.
2633   Make clvmd initialisation cope better with debugging output.
2634   Tidy clvmd socket callbacks so all work happens outside main loop.
2635   clvmd -V now displays lvm version too.
2636   Add optional gulm build for clvmd
2637
2638 Version 2.00.25 - 29th September 2004
2639 =====================================
2640   Fix return code from rm_link for vgmknodes.
2641   Make clvmd LV hash table thread-safe.
2642   Fix clvmd locking so it will lock out multiple users on the same node.
2643   Fix clvmd VG locking to it can cope with multiple VG locks.
2644   Remove spurious trailing dot in lvreduce man page.
2645   Fix vgremove locking.
2646
2647 Version 2.00.24 - 16th September 2004
2648 =====================================
2649   Fix pool_empty so it really does empty the memory pool.
2650   Rename old segtypes files to segtype.
2651   Some fixes to memory debugging code.
2652   Exclude internal commands formats & segtypes from install.
2653
2654 Version 2.00.23 - 15th September 2004
2655 =====================================
2656   Export dm name build & split functions.
2657   Use O_NOATIME on devices if available.
2658   Write log message when each segtype/format gets initialised.
2659   New commands 'segtypes' and 'formats'.
2660   Suppress pvmove abort message in test mode.
2661   Improve pvcreate/remove device not found error message.
2662   Allow pvmove to move data within the same PV.
2663   Describe how pvmove works on man page.
2664   Test for incompatible format/segtype combinations in lv_extend.
2665   Fix lvchange example on man page.
2666
2667 Version 2.00.22 - 3rd September 2004
2668 ====================================
2669   Fix /dev/vgname perms.
2670   Restructure xlate.h.
2671   Add clvmd man page.
2672
2673 Version 2.00.21 - 19th August 2004
2674 ==================================
2675   Update cnxman-socket.h from cman.
2676   Recognise iseries/vd devices.
2677   Use 'make install_cluster' to install cluster extensions only.
2678   Cope with DT_UNKNOWN in sysfs.
2679   Fix extents_moved metadata size comment.
2680   Remove duplicate line in pvremove help text.
2681   Support variable mirror region size.
2682   Support PE ranges in pvmove source PV.
2683   Fixes to as-yet-unused LV segment splitting code.
2684   Change alloc_areas to pe_ranges and allow suppression of availability checks.
2685   Add dev_size column to pvs.
2686   Add report columns for in-kernel device number.
2687
2688 Version 2.00.20 - 3 July 2004
2689 =============================
2690   More autoconf fixes.
2691   Fix device number handling for 2.6 kernels.
2692
2693 Version 2.00.19 - 29 June 2004
2694 ==============================
2695   Reduce severity of setlocale failure message.
2696   Recognise argv[0] "initrd-lvm" (pld-linux).
2697   Make -O2 configurable.
2698   Added --disable-selinux to configure script.
2699   LD_FLAGS->LDFLAGS & LD_DEPS->LDDEPS in configure script.
2700   Add init_debug to clvmd.
2701
2702 Version 2.00.18 - 24 June 2004
2703 ==============================
2704   Fix vgchange activation.
2705   Add cluster support.
2706
2707 Version 2.00.17 - 20 June 2004
2708 ==============================
2709   configure --enable-fsadm to try out fsadm.  fsadm is not tested yet.
2710   Display all filtered devices, not just PVs, with pvs -a.
2711   Fix sync_dir() when no / in filename
2712   vgcfgbackup -f accepts template with %s for VG name.
2713   Extend hash functions to handle non-null-terminated data.
2714   Add local activation support.
2715   Tidy relative paths in makefile includes.
2716   fsadm support for fsck and resizing - needs testing.
2717   Add read-only GFS pool support.
2718   Add lvm2create_initrd script from http://poochiereds.net/svn/lvm2/
2719   Fix rounding of large diplayed sizes.
2720   Suppress decimal point when using units of sectors/bytes.
2721   Additional kernel target checks before pvmove & snapshot creation.
2722   Add i2o_block.
2723
2724 Version 2.00.16 - 24 May 2004
2725 =============================
2726   Set area_count within alloc_lv_segment.
2727   Remove error labels from lvresize.
2728   Fix a pvs error path.
2729   xxchange -ae for exclusive activation.
2730   Don't return non-zero status if there aren't any volume groups.
2731   Add --alloc argument to tools.
2732   Rename allocation policies to contiguous, normal, anywhere, inherit.
2733   nextfree becomes normal; anywhere isn't implemented yet.
2734   LV inherits allocation policy from VG. Defaults: LV - inherit; VG - normal
2735   Additional status character added to vgs to indicate allocation policy.
2736   Add reset_fn to external_locking.
2737   Ensure presence of virtual targets before attempting activating.
2738   Attempt to fix resizing of snapshot origins.
2739   Restructure lvresize, bringing it closer to lvcreate.
2740   A quick sanity check on vg_disk struct when read in.  More checks needed.
2741   Only include visible LVs in active/open counts.
2742   Add virtual segment types, zero and error.  A large sparse device can be
2743 constructed as a writeable snapshot of a large zero segment.
2744   Add --type to lvcreate/resize.
2745   Push lv_create & alloc policy up to tool level.
2746   Fix pvdisplay return code.
2747   Detect invalid LV names in arg lists.
2748   Reporting uses line-at-a-time output.
2749   lvm2 format sets unlimited_vols format flag.
2750   Internal-only metadata flag support.
2751   Basic checking for presence of device-mapper targets.
2752   Separate out polldaemon.
2753   Revise internal locking semantics.
2754   Move find_pv_by_name to library.
2755   Rename move->copy.
2756   Add devices to segments report.
2757   Begin separating out segment code. There's a lot of change here.
2758   Compress any (obsolete) long LVM1 pvids encountered.
2759   Support for tagged config files.
2760   Don't abort operations if selinux present but disabled.
2761   Fix typo in configure which left HAVE_LIBDL unset.
2762
2763 Version 2.00.15 - 19 Apr 2004
2764 =============================
2765   configure --with-owner= --with-group= to avoid -o and -g args to 'install'
2766
2767 Version 2.00.14 - 16 Apr 2004
2768 =============================
2769   Use 64-bit file functions by default.
2770
2771 Version 2.00.13 - 16 Apr 2004
2772 =============================
2773   Set devices/md_component_detection = 1 to ignore devices containing md
2774   superblocks. [Luca Berra]
2775   Ignore error setting selinux file context if fs doesn't support it.
2776
2777 Version 2.00.12 - 14 Apr 2004
2778 =============================
2779   Install a default lvm.conf into /etc/lvm if there isn't one already.
2780   Allow different installation dir for lvm.static (configure --staticdir=)
2781   Fix inverted selinux error check.
2782   Recognise power2 in /proc/devices.
2783   Fix counting in lvs_in_vg_opened. [It ignored devices open more than once.]
2784
2785 Version 2.00.11 - 8 Apr 2004
2786 ============================
2787   Set fallback_to_lvm1 in lvm.conf (or configure --enable-lvm1_fallback)
2788   to run lvm1 binaries if running a 2.4 kernel without device-mapper.
2789
2790 Version 2.00.10 - 7 Apr 2004
2791 ============================
2792   More fixes for static build.
2793   Add basic selinux support.
2794   Fix sysfs detection.
2795
2796 Version 2.00.09 - 31 Mar 2004
2797 =============================
2798   Update copyright notices for Red Hat.
2799   Fix vgmknodes to remove dud /dev/mapper entries. (libdevmapper update reqd).
2800   Add LVM1-style colon output to vgdisplay.
2801   lvchange --refresh to reload active LVs.
2802   Add string display to memory leak dump.
2803   Add locking flags & memlock option.
2804   Add list_versions to library.
2805   Ignore open hidden LVs when checking if deactivation is OK.
2806   Suppress move percentage when device inactive.
2807   Add lv_info_by_lvid.
2808   Various tidy-ups to the build process.
2809   Rebaseline internal verbose level.
2810   Add --nolocking option for read operations if locking is failing.
2811   Add option to compile into a library.
2812   When compiled without libdevmapper, only print warning message once.
2813   Fix lvreduce PV extent calculations.
2814   Fix DESTDIR to work with configure path overrides.
2815   Always use / as config file separator & rename internal config file variables.
2816   Add support for tagging PV/VG/LVs and hosts.
2817   Fix rare bug in recognition of long cmdline argument forms.
2818   Add basic internationalisation infrastructure.
2819   Don't recurse symlinked dirs such as /dev/fd on 2.6 kernels.
2820   Update autoconf files.
2821   Add sysfs block device filtering for 2.6 kernels.
2822   Update refs for move to sources.redhat.com.
2823
2824 Friday 14th November 2003
2825 =========================
2826 Some bug fixes & minor enhancements, including:
2827   Backwards compatibility with LVM1 metadata improved.
2828   Missing man pages written.
2829   Tool error codes made more consistent.
2830   vgmknodes written.
2831   O_DIRECT can be turned off if it doesn't work in your kernel.
2832   dumpconfig to display the active configuration file
2833
2834 You need to update libdevmapper before using 'vgmknodes' or 'vgscan --mknodes'.
2835 If your root filesystem is on an LV, you should run one of those two
2836 commands to fix up the special files in /dev in your real root filesystem
2837 after finishing with your initrd.  Also, remember you can use
2838 'vgchange --ignorelockingfailure' on your initrd if the tool fails because
2839 it can't write a lock file to a read-only filesystem.
2840
2841 Wednesday 30th April 2003
2842 =========================
2843 A pvmove implementation is now available for the new metadata format.
2844
2845 When running a command that allocates space (e.g. lvcreate), you can now
2846 restrict not only which disk(s) may be used but also the Physical Extents
2847 on those disks.  e.g. lvcreate -L 10 vg1 /dev/hda6:1000-2000:3000-4000
2848
2849
2850 Monday 18th November 2002
2851 ========================
2852
2853 The new format of LVM metadata is ready for you to test!
2854   We expect it to be more efficient and more robust than the original format.
2855   It's more compact and supports transactional changes and replication.
2856   Should things go wrong on a system, it's human-readable (and editable).
2857
2858 Please report any problems you find to the mailing list,
2859 linux-lvm@sistina.com.  The software has NOT yet been thoroughly
2860 tested and so quite possibly there'll still be some bugs in it.
2861 Be aware of the disclaimer in the COPYING file.
2862
2863 While testing, we recommend turning logging on in the configuration file
2864 to provide us with diagnostic information:
2865   log {
2866         file="/tmp/lvm2.log"
2867         level=7
2868         activation=1
2869   }
2870
2871 You should schedule regular backups of your configuration file and
2872 metadata backups and archives (normally kept under /etc/lvm).
2873
2874 Please read docs/example.conf and "man lvm.conf" to find out more about
2875 the configuration file.
2876
2877 To convert an existing volume group called vg1 to the new format using
2878 the default settings, use "vgconvert -M2 vg1".  See "man vgconvert".
2879
2880 -M (or --metadatatype in its long form) is a new flag to indicate which
2881 format of metadata the command should use for anything it creates.
2882 Currently, the valid types are "lvm1" and "lvm2" and they can be
2883 abbreviated to "1" and "2" respectively.  The default value for this
2884 flag can be changed in the global section in the config file.
2885
2886 Backwards-compatible support for the original LVM1 metadata format is
2887 maintained, but it can be moved into a shared library or removed
2888 completely with configure's --with-lvm1 option.
2889
2890 Under LVM2, the basic unit of metadata is the volume group.  Different
2891 volume groups can use different formats of metadata - vg1 could use
2892 the original LVM1 format while vg2 used the new format - but you can't
2893 mix formats within a volume group.  So to add a PV to an LVM2-format
2894 volume group you must run "pvcreate -M2" on it, followed by "vgextend".
2895
2896 With LVM2-format metadata, lvextend will let you specify striping
2897 parameters.  So an LV could consist of two or more "segments" - the
2898 first segment could have 3 stripes while the second segment has just 2.
2899
2900 LVM2 maintains a backup of the current metadata for each volume group
2901 in /etc/lvm/backup, and puts copies of previous versions in
2902 /etc/lvm/archive.  "vgcfgbackup" and "vgcfgrestore" can be used to
2903 create and restore from these files.  If you fully understand what
2904 you're doing, metadata can be changed by editing a copy of a current
2905 backup file and using vgcfgrestore to reload it.
2906
2907 Please read the pvcreate man page for more information on the new
2908 format for metadata.
2909
2910 All tools that can change things have a --test flag which can be used
2911 to check the effect  of a set of cmdline args without really making the
2912 changes.
2913
2914
2915 What's not finished?
2916 ====================
2917 The internal cache.  If you turn on debugging output you'll see lots of
2918 repeated messages, many of which will eventually get optimised out.
2919
2920 --test sometimes causes a command to fail (e.g. vgconvert --test) even
2921 though the real command would work: again, fixing this is waiting for
2922 the work on the cache.
2923
2924 Several of the tools do not yet contain the logic to handle full
2925 recovery: combinations of pvcreate and vgcfgrestore may sometimes be
2926 needed to restore metadata if a tool gets interrupted or crashes or
2927 finds something unexpected.  This applies particularly to tools that
2928 work on more than one volume group at once (e.g. vgsplit).
2929
2930 Display output.  Some metadata information cannot yet be displayed.
2931
2932 Recovery tools to salvage "lost" metadata directly from the disks:
2933 but we hope the new format will mean such tools are hardly ever needed!