WHATS_NEW

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