WHATS_NEW

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