WHATS_NEW

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