WHATS_NEW

   1 Version 2.02.96 -
   2 ================================
   3   Update lcov Makefile target to support all dmeventd plugins.
   4   Fix initializiation of thin monitoring (2.02.92).
   5   Support improperly formated device numbers in /proc/devices (2.02.91).
   6   Fix fsadm propagation of -e option.
   7   Fix fsadm parsing of /proc/mounts files (don't check for substrings).
   8   Fix fsadm usage of arguments with space.
   9   Fix a regression in handling of lvchange/lvcreate --major/--minor.
  10   Fix name conflicts that prevent down-converting RAID1 when specifying a device
  11   Improve thin_check option passing and use configured path.
  12   Add --with-thin-check configure option for path to thin_check.
  13   Detect lvm binary path in lvmetad udev rules.
  14   Fix error message when pvmove LV activation fails with name already in use.
  15   Better structure layout for device_info in dev_subsystem_name().
  16   Change message severity for creation of VG over uninitialised devices.
  17   Fix error path for failing toolcontext creation.
  18   Fix warn msg for thin pool chunk size and update man for chunksize (2.02.89).
  19
  20 Version 2.02.95 - 6th March 2012
  21 ================================
  22   If unspecified, adjust thin pool metadata and chunk size to fit into 128MB.
  23   Print just warning on thin pool check callback path for failing check.
  24   Always use 64bit arithmetic with VG extent_size expression.
  25   Validate udev structures in _insert_udev_dir().
  26   Take repeatable --major --minor with pvscan --cache instead of major:minor.
  27   Scan all devices for lvmetad if 'pvscan --cache' used without device list.
  28   Populate lvmcache from lvmetad before displaying PVs in pvscan. (2.02.94)
  29   Suppress incorrect -n pvscan warning now always displayed. (2.02.94)
  30
  31 Version 2.02.94 - 3rd March 2012
  32 ================================
  33   Add support to execute thin_check with each de/active of thin pool.
  34   Fix automatic estimation of metadata device size for thin pool.
  35   Test for alloc fail from _alloc_pv_segment() in _extend_pv().
  36   Check for alloc fail from get_segtype_from_string() in _lvcreate_params().
  37   Add _rimage as reserved suffix to lvm.8 man page.
  38   Improve error logging from mpath filter.
  39   Check for allocation failure in hold_lock() in clvmd.
  40   Use set_lv() (wipe initial 4KiB) for non zeroed thin volume.
  41   Allow cluster mirrors to handle the absence of the checkpoint lib (libSaCkpt).
  42   Revert free of allocated segtype in init segment error path (2.02.89).
  43   Test dm_hash_insert() failures in filter-persistent.c and fid_add_mda().
  44   Ensure clvmd message is always NUL-terminated after read.
  45   Add some close() and dev_close() error path backtraces.
  46   Set stdin/stdout/stderr to /dev/null for polldaemon.
  47   Limit the max size of processed clvmd message to ~8KB.
  48   Do not send uninitialised bytes in cluster error reply messages.
  49   Use unsigned type for bitmask instead of enum type for lvm properties.
  50   Add missing cleanup of excl_uuid hash on some exit paths of clvmd.
  51   Check for existence of vg_name in _format1/_pool_vg_read().
  52   Fix missing break in _format_pvsegs (2.02.92).
  53   Test seg pointer for non-null it in raid_target_percent error path.
  54   Check for errors in _init_tags() during config loading.
  55   Always check result of _set_vg_name() in lvcreate.
  56   Drop unused call to uname() during clvmd initialization.
  57   Test allocation result in sysfs filter creation.
  58   Limit sscanf parameters with buffer size in clvmd get_initial_state().
  59   Use const lv pointer for lv_is_active...() functions.
  60   Use same signed numbers in _mirrored_transient_status().
  61   Support 'pvscan --cache' to update lvmetad state from specific PVs.
  62   Provide new metadata daemon for testing with configure --enable-lvmetad .
  63   Integrate client-side lvmetad into build.
  64
  65 Version 2.02.93 - 23rd February 2012
  66 ====================================
  67   Require number of stripes to be greater than parity devices in higher RAID.
  68   Fix allocation code to allow replacement of single RAID 4/5/6 device.
  69   Check all tags and LV names are in a valid form in vg_validate.
  70   Add tmpfiles.d style configuration for lvm2 lock and run directory.
  71   Add configure --with-tmpfilesdir for dir holding volatile-file configuration.
  72   Allow 'lvconvert --repair' to operate on RAID 4/5/6.
  73   Fix build_parallel_areas_from_lv to account correctly for raid parity devices.
  74   Print message when faulty raid devices have been replaced.
  75
  76 Version 2.02.92 - 20th February 2012
  77 ====================================
  78   Read dmeventd monitoring config settings for every lvm command.
  79   For thin devices, initialize monitoring only for thin pools not thin volumes.
  80   Make conversion from a synced 'mirror' to 'raid1' not cause a full resync.
  81   Properly test buffer for unit check in units_to_bytes().
  82   Add configure --with-systemdsystemunitdir.
  83   Add check for allocation failure in _build_matcher().
  84   Add check for rimage name allocation failure in _raid_add_images().
  85   Add check for mda_copy failure in _text_pv_setup().
  86   Add check for _mirrored_init_target failure.
  87   Add free_orphan_vg.
  88   Skip pv/vg_set_fid processing if the fid is same.
  89   Check for foreach loop errors in _vg_read_orphans() (2.02.91).
  90   Clean error paths for format instance creation (2.02.91).
  91   Release vg in error path of _format1_vg_read() instead of just free().
  92   Report allocation failure for allocation of PV structure.
  93   Add clvmd init dependency on dlm service when running with new corosync.
  94
  95 Version 2.02.91 - 12th February 2012
  96 ====================================
  97   Remove PV-based format instances (which are no longer needed).
  98   Link all orphan PVs directly to a per-format global orphan VG.
  99   Refactor lvmcache around an internal API.
 100   Stop processing lvextend if trying to extend a mirror that is being recovered.
 101   Add pool_below_threshold() function to check thin pool percent status.
 102   Fix test for snap percent for failing merge when removing LV.
 103   Switch int to void return for str_list_del().
 104   Fix error path handling in _build_desc().
 105   Add range test for device number in _scan_proc_dev().
 106   Use signed long for sysconf() call in cmirrord.
 107   Do not write in front of log buffer in print_log().
 108   Add boundary test for number of mirror devs and logs.
 109   Check that whole locking_dir fits _lock_dir buffer in init_file_locking().
 110   Use list functions for label_exit().
 111   Ensure strncpy() function always ends with '\0'.
 112   Set status in _fsadm_cmd() for error path.
 113   Add missing deps for lvm2api for rebuild when lvm-internal is changed.
 114   Fix resource leaks for failing allocation of formats (lvm1/2,pool).
 115   Release allocated resources in error path for composite_filter_create().
 116   Do not use lstat() results when failed in _rm_link().
 117   Remove a "waiting for another thread" log message from dmeventd plugins.
 118
 119 Version 2.02.90 - 1st February 2012
 120 ===================================
 121   sync_local_dev_names before (re)activating mirror log for initialisation.
 122   Disable partial activation for thin LVs and LVs with all missing segments.
 123   Do not print warning for pv_min_size between 512KB and 2MB.
 124   Clean up systemd unit ordering and requirements.
 125   Fix lcov reports when srcdir != builddir.
 126   Allow ALLOC_NORMAL to track reserved extents for log and data on same PV.
 127   Automatically detect whether corosync clvmd needs to use confdb or cmap.
 128   Fix data% report for thin volume used as origin for non-thin snapshot.
 129
 130 Version 2.02.89 - 26th January 2012
 131 ===================================
 132   Add missing check for uname result in clvmd TEST processing.
 133   Fix memleak in target_version() error path (unsupported LIST_VERSIONS).
 134   Limit data_alignment and data_alignment_offset to 32bit values.
 135   Check for correctness of uint64 dev_size value in format_text.
 136   Thin pools have segment fields thin_count, zero, transaction_id.
 137   Add data_percent and metadata_percent for thin pools to lvs -v.
 138   Add data_lv & metadata_lv fields to lvs for thin pools.
 139   Add data_percent & pool_lv fields to lvs for thin volumes.
 140   Rename origin_only parm to use_layer for lv_info and use with thin LVs.
 141   Add lv_thin_pool_transaction_id to read the transaction_id value.
 142   Use {suspend,resume}_origin_only when up-converting RAID, as mirrors do.
 143   Always add RAID metadata LVs to deptree (even when origin_only is set).
 144   Change exclusive LV activation logic to try local node before remote nodes.
 145   Add CLVMD_FLAG_REMOTE to skip processing on local node.
 146   Prompt if request is made to remove a snapshot whose "Merge failed".
 147   Allow removal of an invalid snapshot that was to be merged on next activation.
 148   Don't allow a user to merge an invalid snapshot.
 149   Use m and M lv_attr to indicate that a snapshot merge failed in lvs.
 150   Differentiate between snapshot status of "Invalid" and "Merge failed".
 151   Report snapshot usage percent of origin volume when a snapshot is merging.
 152   Require global/lvdisplay_shows_full_device_path for (bogus) lvm1-style paths.
 153   Do not report linear segtype for non-striped targets.
 154   Record creation host & time for each LV and report as lv_time & lv_host.
 155   Make error message hit when preallocated memlock memory exceeded clearer.
 156   Use R lv_attr to indicate read-only activation of non-read-only device in lvs.
 157   Show read-only activation override in lvdisplay & add 4 to perms in -c.
 158   Add activation/read_only_volume_list to override LV permission in metadata.
 159   Give priority to emcpower devices with duplicate PVIDs.
 160   Add check for error in _adjust_policy_params() (lvextend --use-policies).
 161   Round specified percentages upwards (%LV, %VG...) when resizing LVs.
 162   Use dmeventd_lvm2_command in dmeventd plugins snapshot, raid, mirror.
 163   Add helper dmeventd_lvm2_command() to libdevmapper-event-lvm2 library.
 164   Update documentation for dmeventd.
 165   Remove unnecessary stat before opening device in dev_open_flags.
 166   Reduce number of lstat calls when selecting device alias.
 167   Add _dev_init to initialize common struct device members.
 168   Always zalloc struct device during initialization.
 169   Fix missing thread list manipulation protection in dmeventd.
 170   Do not derefence lv pointer in _percent_run() function before NULL check.
 171   Allow empty strings for description and creation_host config fields.
 172   Issue deprecation warning when removing last lvm1-format snapshot.
 173   Reinstate support for snapshot removal with lvm1 format. (2.02.86)
 174   Add policy-based automated repair of RAID logical volumes.
 175   Don't allow two images to be split and tracked from a RAID LV at one time.
 176   Don't allow size change of RAID LV that is tracking changes for a split image.
 177   Don't allow size change of RAID sub-LVs independently.
 178   Don't allow name change of RAID LV that is tracking changes for a split image.
 179   Do not allow users to change the name of RAID sub-LVs independently.
 180   Do not allow users to change permissions on RAID sub-LVs.
 181   Allow lvconvert to replace specified devices in a RAID array.
 182   Add activation/use_linear_target enabled by default.
 183   Use gcc warning options only with .c to .o compilation.
 184   Move y/n prompts to stderr and repeat if response has both 'n' and 'y'.
 185   Replace the unit testing framework with CUnit (--enable-testing).
 186   Fix dmeventd snapshot monitoring when multiple extensions were involved.
 187   Don't ignore configure --mandir and --infodir.
 188   Drop pool memory allocated within lv_has_target_type().
 189   Reduce stack allocation of some PATH_MAX sized char buffers.
 190   Unlock memory before writing metadata.
 191   Add query before removing snapshots when inactive snapshot origin is removed.
 192   Allow changing availability state of snapshots.
 193   Skip non-virtual snapshots for availability change for lvchange with vg name.
 194   Skip adjusting mirror region size unless mirror or raid.
 195   Reorder prompt conditions for removal of active volumes.
 196   Avoid 'mda inconsistency' by properly registering UNLABELLED_PV flag.(2.02.86)
 197   Fix --enable-static_link unless using --enable-dmeventd / --enable-udev_sync.
 198   Move gentoo MAKEDEV to /sbin in lvm2create_initrd.
 199   Add filter to avoid scan of device if it is part of active multipath.
 200   Add missing default $LVM_VG_NAME usage for snapshots.
 201   Avoid extent_count overflow with lvextend.
 202   Add missing lvrename mirrored log recursion in for_each_sub_lv.
 203   Improve lv_extend stack reporting.
 204   Increase virtual segment size instead of creating multiple segment list.
 205   Add last_seg(lv) internal function.
 206   Support empty string for log/prefix.
 207   Disallow mirrored logs for cluster mirrors. (2.02.72)
 208   Don't print char type[8] as a plain string in pvck PV type.
 209   Use vg memory pool implicitly for vg read.
 210   Always use vg memory pool for allocated lv segment.
 211   Remove extra 4kB buffer allocated on stack in print_log().
 212   Make move_lv_segment non-static function and use dm_list function.
 213   Pass exclusive LV locks to all nodes in the cluster.
 214   Improve lvcreate chunksize man page description.
 215   Improve man page style for lvcreate & lvs.
 216   Avoid recursive calls to dmeventd in its LVM plugins.
 217   Log dev name now returned to kernel for registering during cmirror CTR.
 218   Fix lv_info open_count test for disabled verify_udev_operations. (2.02.86)
 219   Simplify code for lvm worker thread in clvmd.
 220   Use pthread_barrier to synchronize clvmd threads at startup.
 221   Limit clvmd's thread size to 128KiB and ignore activation/reserved_stack.
 222   Reduce default preallocated stack size to 64KiB.
 223   Add check for access through NULL pointer when refresh_filter() fails.
 224   Use pthread condition for SINGLENODE lock implementation.
 225   Improve backtrace reporting for some dev_manager_ functions.
 226   Change message severity to log_warn when symlink creation fails.
 227   Add ability to convert mirror segtype to RAID1 segtype.
 228   Add ability to convert from linear to RAID1.
 229   Add ability to extend mirrors with '--nosync' option.
 230   Fix splitmirror LV names to maintain consistent state in a cluster.
 231   Apply appropriate udev flags when suspending/resuming mirror sub-LVs.
 232   Fix vgsplit to handle mirrored logs.
 233   Clarify multi-name device filter pattern matching explanation in lvm.conf.
 234   Introduce revert_lv for better pvmove cleanup.
 235   Replace incomplete pvmove activation failure recovery code with a message.
 236   Abort if _finish_pvmove suspend_lvs fails instead of cleaning up incompletely.
 237   Change suspend_lvs to call vg_revert internally.
 238   Change vg_revert to void and remove superfluous calls after failed vg_commit.
 239   Use execvp for CLVMD restart to preserve environment settings.
 240   Restart CLVMD with same cluster manager.
 241   Fix log_error() usage in raid and unknown segtype initialisation.
 242   Improve testing Makefile.
 243   Fix install_ocf make target when srcdir != builddir. (2.02.80)
 244   Support env vars LVM_CLVMD_BINARY and LVM_BINARY in clvmd.
 245   Fix restart of clvmd (preserve exlusive locks). (2.02.64)
 246   Add 'Volume Type' lv_attr characters for RAID and RAID_IMAGE.
 247   Add activation/retry_deactivation to lvm.conf to retry deactivation of an LV.
 248   Replace open_count check with holders/mounted_fs check on lvremove path.
 249   Disallow the creation of mirrors (mirror or raid1 segtype) with only one leg.
 250   Cleanup restart clvmd code (no memory allocation, debug print passed args).
 251   Add all exclusive locks to clvmd restart option args.
 252   Always send the whole clvmd packet header in refresh commands.
 253   Add missing error checks for some system calls in cmirrord.
 254   Add missing log_error() to lvresize command when fsadm tool fails.
 255   Add support for DM_DEV_DIR device path into fsadm script.
 256   Support different PATH setting for fsadm script testing.
 257   Surround all executed commands with quotes in fsadm script.
 258   Fix missing '$' in test for content of "$LVM" in fsadm script.
 259   Move debug message in exec_cmd after sync_local_dev_names.
 260   Fix clvmd processing of invalid request on local socket.
 261   Fix command line option decoding.
 262   Reset LV status when unlinking LV from VG.
 263   Fix overly-strict extent-count divisibility requirements for striped mirrors.
 264   Fix rounding direction in lvresize when reducing volume size.
 265   Fix possible overflow of size if %FREE or %VG is used.
 266   Fix vgchange activation of snapshot with virtual origin.
 267   Activate virtual snapshot origin exclusively (only on local node in cluster).
 268   Fix lv_mirror_count to handle mirrored stripes properly.
 269   Fix failure to down-convert a mirror to linear due to udev "dev open" conflict
 270   Fix mirrored log creation when PE size is small: use log_size >= region_size.
 271   Fix log size calculation when only a log is being added to a mirror.
 272   Add 7th lv_attr char to show the related kernel target.
 273   Terminate pv_attr field correctly. (2.02.86)
 274   Fix 'not not' typo in pvcreate man page.
 275   Improve man page style for fsadm, lvreduce, lvremove, lvrename & lvresize.
 276   Support break for vgchange and vgrefresh operation.
 277   Switch int to unsigned type for pvmetadatacopies for pv_create().
 278   Replace :space: with [\t ] for awk in vgimportclone (not widely supported).
 279   Begin using 64-bit status field flags.
 280   Detect sscanf recovering_region input error in cmirrord pull_state().
 281   Fix error path bitmap leak in cmirrord import_checkpoint().
 282   Log unlink() error in cmirrord remove_lockfile().
 283   Remove incorrect requirement for -j or -m from lvchange error message.
 284   Fix unsafe table load when splitting off smaller mirror from a larger one.
 285   Use size_t return type for text_vg_export_raw() and export_vg_to_buffer().
 286   Add configure --enable-lvmetad for building the (experimental) LVMetaD.
 287   Fix resource leak when strdup fails in _get_device_status() (2.02.85).
 288   Directly allocate buffer memory in a pvck scan instead of using a mempool.
 289   Add configure --with-thin for segtypes "thin" and "thin_pool".
 290   Fix raid shared lib segtype registration (2.02.87).
 291
 292 Version 2.02.88 - 19th August 2011
 293 ==================================
 294   Remove incorrect 'Breaking' error message from allocation code. (2.02.87)
 295   Add lvconvert --merge support for raid1 devices split with --trackchanges.
 296   Support lvconvert of -m1 raid1 devices to a higher number.
 297   Add --trackchanges support to lvconvert --splitmirrors option for raid1.
 298   Support splitting off a single raid1 rimage in lvconvert --splitmirrors.
 299   Use sync_local_dev_names when reducing number of raid rimages in lvconvert.
 300   Add -V as short form of --virtualsize in lvcreate.
 301   Fix make clean not to remove Makefile.  (2.02.87)
 302
 303 Version 2.02.87 - 12th August 2011
 304 ==================================
 305   Fix make distclean to remove stray dmeventd and exported symbols files.
 306   Add global/detect_internal_vg_cache_corruption to lvm.conf.
 307   Use memory pool locking to check for corruption of internal VG structs.
 308   Cache and share generated VG structs.
 309   Fix possible format instance memory leaks and premature releases in _vg_read.
 310   Suppress locking error messages in monitoring init scripts.
 311   If pipe in clvmd fails return busy instead of using uninitialised descriptors.
 312   Add ability to reduce the number of mirrors in raid1 arrays to lvconvert.
 313   Add dmeventd plugin for raid.
 314   Replace free_vg with release_vg and move it to vg.c.
 315   Remove INCONSISTENT_VG flag from the code.
 316   Remove lock from cache in _lock_vol even if unlock fails.
 317   Initialise clvmd locks before lvm context to avoid open descriptor leaks.
 318   Remove obsolete gulm clvmd cluster locking support.
 319   Suppress low-level locking errors and warnings while using --sysinit.
 320   Remove unused inconsistent_seqno variable in _vg_read().
 321   Remove meaningless const type qualifiers on cast type.
 322   Add test for fcntl error in singlenode client code.
 323   Remove --force option from lvrename manpage.
 324   Add global/mirror_segtype_default to pick md raid or dm mirror as default.
 325   Add configure --with-raid for new segtype 'raid' for MD RAID 1/4/5/6 support.
 326   Change DEFAULT_UDEV_SYNC to 1 so udev_sync is used if there is no config file.
 327   Add systemd unit file to provide lvm2 monitoring.
 328   Compare file size (as well as timestamp) to detect changed config file.
 329
 330 Version 2.02.86 - 8th July 2011
 331 ===============================
 332   Remove unnecessary warning in pvcreate for MD linear devices.
 333   Move snapshot removal activation logic into lib/activate.
 334   Cope with a PV only discovered missing when creating deptree.
 335   Abort operation if dm_tree_node_add_target_area fails.
 336   Add activation/checks to lvm.conf to perform additional ioctl validation.
 337   Always preload on suspend, even if no metadata changed (lvchange --refresh).
 338   When suspending, automatically preload newly-visible existing LVs.
 339   Teardown any stray devices with $COMMON_PREFIX during test runs.
 340   Reinstate correct permissions when creating mirrors. [2.02.85]
 341   Append 'm' attribute to pv_attr for missing PVs.
 342   Annotate CLVMD_CMD_SYNC_NAMES in decode_cmd.
 343   Remove enforcement of udev verification when using non-standard /dev location.
 344   Keep an exclusive mirror non-clustered if reloaded e.g. during conversion.
 345   Reject allocation if number of extents is not divisible by area count.
 346   Fix cluster mirror creation to work with new mirror allocation algorithm.
 347   Ignore activation/verify_udev_operations if dm kernel driver vsn < 4.18.
 348   Add activation/verify_udev_operations to lvm.conf, disabled by default.
 349   Call vg_mark_partial_lvs() before VG structure is returned from the cache.
 350   Remove unused internal flag ACTIVATE_EXCL from the code.
 351   Remove useless test of ACTIVATE_EXCL in lv_add_mirrors() clustered code path.
 352   Add lv_activate_opts structure for activation (replacing activation flags).
 353   Ignore inconsistent pre-commit metadata on MISSING_PV devs while activating.
 354   Add proper udev library context initialization and finalization to liblvm.
 355   Fix last snapshot removal to avoid table reload while a device is suspended.
 356   Use dm_get_suspended_counter in replacement critical_section logic.
 357   Downgrade critical_section errors to debug level until it is moved to libdm.
 358   Fix ignored background polling default in vgchange -ay.
 359   Fix pvmove activation sequences to avoid trapped I/O with multiple LVs.
 360   Annotate critical section debug messages.
 361   Fix reduction of mirrors with striped segments to always align to stripe size.
 362   Validate mirror segments size.
 363   Include lvmetad development code in tree.
 364   Fix extent rounding for striped volumes never to reduce more than requested.
 365   Fix create_temp_name to replace any '/' found in the hostname with '?'.
 366   Always use append to file in lvmdump. selinux policy may ban file truncation.
 367   Propagate test mode to clvmd to skip activation and changes to held locks.
 368   Defer writing PV labels until vg_write.
 369   Store label_sector only in struct physical_volume.
 370   Permit --available with lvcreate so non-snapshot LVs need not be activated.
 371   Report sector containing label in verbose message.
 372   Clarify error message when unable to convert an LV into a snapshot of an LV.
 373   Add and use dev_open_readonly and variations.
 374   Do not log a superfluous stack message when the lv is properly processed.
 375   Do not issue an error message when unable to remove .cache on read-only fs.
 376   Avoid memlock size mismatch by preallocating stdio line buffers.
 377   Rewrite vgreduce --removemissing --force to share lvconvert code.
 378   Reorganize lvconvert --repair code to allow reuse.
 379
 380 Version 2.02.85 - 29th April 2011
 381 =================================
 382   Add new obtain_device_list_from_udev setting to lvm.conf.
 383   Obtain device list from udev by default if LVM2 is compiled with udev support.
 384   Add test for vgimportclone and querying of vgnames with duplicate pvs.
 385   Avoid use of released memory when duplicate PV is found.
 386   Add "devices/issue_discards" to lvm.conf.
 387   Issue discards on lvremove and lvreduce etc. if enabled and supported.
 388   Add seg_pe_ranges and devices fields to liblvm.
 389   Fix incorrect tests for dm_snprintf() failure.
 390   Fix some unmatching sign comparation gcc warnings in the code.
 391   Support lv_extend() on empty LVs.
 392   Avoid regenerating cache content when exported VG buffer is unchanged.
 393   Extend the set of memory regions that are not locked to memory.
 394   Workaround some problems when compiled for valgrind memcheck.
 395   Support controlled quit of the lvm_thread_fn function in clvmd.
 396   Fix reading of unallocated memory in lvm1 format import function.
 397   Replace several strncmp() calls with id_equal().
 398   Fix lvmcache_info transfer to orphan_vginfo in _lvmcache_update_vgname().
 399   Fix -Wold-style-definition gcc warnings.
 400   Rename MIRROR_NOTSYNCED to LV_NOTSYNCED.
 401   Fix _move_lv_segments to handle empty LVs.
 402   Fixes for lvconvert (including --repair) of temporary mirror stacks.
 403   Avoid potential loop when removing mirror images.
 404   Fix mirror removal always to take account of preferences as to which.
 405   Fix MIRRORED flag usage.
 406   Remove error messages issued by device_is_usable when run as non-root.
 407   Add missing \0 for grown debug object in _bitset_with_random_bits().
 408   Fix allocation of system_id buffer in volume_group structure.
 409   Fix readlink usage inside get_primary_dev().
 410   Use format instance mempool where possible and adequate.
 411   Call destroy_instance for any PVs found in VG structure during vg_free call.
 412   Add new free_pv_fid fn and use it throughout to free all attached fids.
 413   Use only vg_set_fid and new pv_set_fid fn to assign the format instance.
 414   Make create_text_context fn static and move it inside create_instance fn.
 415   Add mem and ref_count fields to struct format_instance for own mempool use.
 416   Use new alloc_fid fn for common format instance initialisation.
 417   Optimise _get_token() and _eat_space().
 418   Add _lv_postorder_vg() to improve efficiency for all LVs in VG.
 419   Add gdbinit script for debugging.
 420   Use hash tables to speedup string search in vg_validate().
 421   Refactor allocation of VG structure adding alloc_vg().
 422   Avoid possible endless loop in _free_vginfo when 4 or more VGs have same name.
 423   Use empty string instead of /dev// for LV path when there's no VG.
 424   Don't allocate unused VG mempool in _pvsegs_sub_single.
 425   Do not send uninitialised bytes in local clvmd messages.
 426   Support --help option for clvmd and return error for unknown option.
 427   Avoid reading freed memory when printing LV segment type.
 428   Fix syslog initialisation in clvmd to respect lvm.conf setting.
 429   Fix possible overflow in maximum stripe size and physical extent size.
 430   Improve pvremove error message when PV belongs to a VG.
 431   Extend normal policy to allow mirror logs on same PVs as images if necessary.
 432   Improve cling policy to recognise PVs already used during the transaction.
 433   Improve normal allocation algorithm to include clinging to existing areas.
 434   Add allocation/maximise_cling & mirror_logs_require_separate_pvs to lvm.conf.
 435   Adapt metadata balancing code to work with metadata handling changes.
 436   Add old_id field to physical_volume and fix pvchange -u for recent changes.
 437   Allow pvresize on a PV with two metadata areas.
 438   Change pvcreate to use new metadata handling interface.
 439   Restructure existing pv_setup and pv_write and add pv_initialise.
 440   Add internal interface to support adding and removing metadata areas.
 441   Allow internal indexing of metadata areas (PV id + mda order).
 442   Generalise internal format_instance infrastrusture for PV and VG use.
 443   Handle decimal digits with --units instead of ignoring them silently.
 444   Fix remaining warnings and compile with -Wpointer-arith.
 445   Fix gcc warnings for unused variables and const casts.
 446   Add stack backtraces for error paths in process_each_lv().
 447   Temporarily suppress error from calling yes_no_prompt while locks are held.
 448   Replace void* with char* arithmetic in _text_write, _text_read & send_message.
 449   Fix compilation without DEVMAPPER_SUPPORT.
 450   Remove fs_unlock() from lv_suspend error path.
 451   Allow memory to stay locked between leaving and re-entering critical sections.
 452   Rename memlock to critical_section throughout.
 453   Make pv_min_size configurable and increase to 2048KB to exclude floppy drives.
 454   Add find_config_tree_int64 to read 64-bit ints from config.
 455   Ensure resuming exclusive cluster mirror continues to use local mirror target.
 456   Clear temporary postorder LV status flags to allow re-use with same LV struct.
 457   Remove invalid snapshot umount mesg which floods syslog from dmeventd plugin.
 458   Add extended examples to pvmove man page.
 459   Support LVM_TEST_DEVDIR env var for private /dev during testing.
 460
 461 Version 2.02.84 - 9th February 2011
 462 ===================================
 463   Fix CRC32 calculation on big endian CPU (2.02.75).
 464
 465 Version 2.02.83 - 4th February 2011
 466 ===================================
 467   Allow exclusive activation of snapshots in a cluster.
 468   Leave EX lock unchanged when suspending a device in clvmd.
 469   Use sync_dev_names in unlock_vg macro for cluster-wide dev name sync.
 470   Fix fs operation stack handling when multiple operations on same device.
 471   Increase hash table size to 1024 lv names and 64 pv uuids.
 472   Remove fs_unlock() from lv_resume path.
 473   Fix wipe size when setting up mda.
 474   Remove unneeded checks for open_count in lv_info().
 475   Synchronize with udev before checking open_count in lv_info().
 476   Allow CLVMD_CMD_SYNC_NAMES to be propagated around the cluster if requested.
 477   Add "dmsetup ls --tree" output to lvmdump.
 478   Fix udev synchronization with no-locking --sysinit (2.02.80).
 479   Improve man page style consistency for pvcreate, pvremove, pvresize, pvscan.
 480   Avoid rebuilding of uuid validation table.
 481   Improve lvcreate error text from insufficient "extents" to "free space".
 482   Always use O_DIRECT when opening block devices to check for partitioning.
 483
 484 Version 2.02.82 - 24th January 2011
 485 ===================================
 486   Bring lvscan man page up-to-date.
 487   Fix lvchange --test to exit cleanly.
 488   Add change_tag to toollib.
 489   Allow multiple pvchange command line options to be specified together.
 490   Do not fail pvmove polling if another process cleaned up first.
 491   Avoid clvmd incrementing dlm lockspace reference count more than once.
 492   Add -f (don't fork) option to clvmd and fix clvmd -d<num> description.
 493
 494 Version 2.02.81 - 17th January 2011
 495 ===================================
 496   Do not scan devices in dev_reset_error_count().
 497   Skip unnecessary LOCK_NULL unlock call during volume deactivation.
 498   Skip fs_unlock when calling exec_cmd within activation code (for modprobe).
 499   Extend exec_cmd params to specify when device sync (fs_unlock) is needed.
 500   Replace fs_unlock by sync_local_dev_names to notify local clvmd. (2.02.80)
 501   Introduce sync_local_dev_names and CLVMD_CMD_SYNC_NAMES to issue fs_unlock.
 502   Accept fusion fio in device type filter.
 503   Add ability to convert mirror log type from disk to mirrored.
 504
 505 Version 2.02.80 - 10th January 2011
 506 ===================================
 507   Use same dm cookie for consecutive dm ops in same VG to reduce udev waits.
 508   Speed up command processing by caching resolved config tree.
 509   Pass config_tree to renamed function import_vg_from_config_tree().
 510   Detect NULL handle in get_property().
 511   Fix superfluous /usr in ocf_scriptdir instalation path.
 512   Add --with-ocfdir configurable option.
 513   Add aclocal.m4 (for pkgconfig).
 514   Fix memory leak in persistent filter creation error path.
 515   Check for errors setting up dm_task struct in _setup_task().
 516   Fail polldaemon creation when lvmcache_init() fails.
 517   Return PERCENT_INVALID for errors in _copy_percent() and _snap_percent().
 518   Remove some unused variables.
 519   Improve general lvconvert man page description.
 520   Return 0 from cmirrord initscript 'start' if daemon is already running.
 521   Fix wrongly paired unlocking of VG_GLOBAL in pvchange. (2.02.66)
 522   Add backtraces for backup and backup_remove fail paths.
 523   Detect errors from dm_task_set calls in _get_device_info (dmeventd).
 524   Add backtraces for archive and backup_locally in check_current_backup().
 525   Fix memory leak in debug mode of restart_clvmd() error path.
 526   Log error message for pthread_join() failure in clvmd.
 527
 528 Version 2.02.79 - 20th December 2010
 529 ====================================
 530   Remove some unused variables.
 531   Add missing test for reallocation error in _find_parallel_space().
 532   Add checks for allocation errors in config node cloning.
 533   Fix error path if regex engine cannot be created in _build_matcher().
 534   Use char* arithmetic in target_version(), _process_all() & _targets().
 535   Fixing const cast gcc warnings in the code.
 536   Check read() and close() results in _get_cmdline().
 537   Add const for struct config_node usage.
 538   Fix NULL pointer check in error path in clvmd do_command(). (2.02.78)
 539   Fix device.c #include to ensure 64-bit fopen64 use. (2.02.51)
 540   Add copy_percent and snap_percent to liblvm.
 541   Enhance vg_validate to ensure integrity of LV and PV structs referenced.
 542   Enhance vg_validate to check composition of pvmove LVs.
 543   Create /var/run/lvm directory during clvmd initialisation if missing.
 544   Use new dm_prepare_selinux_context instead of dm_set_selinux_context.
 545   Avoid revalidating the label cache immediately after scanning.
 546   Support scanning for a single VG in independent mdas.
 547   Don't skip full scan when independent mdas are present even if memlock is set.
 548   Set cmd->independent_metadata_areas if metadata/dirs or disk_areas in use.
 549   Cope better with an undefined target_percent operation in _percent_run.
 550   Avoid writing to freed memory in vg_release and rename to free_vg.  (2.02.78)
 551
 552 Version 2.02.78 - 6th December 2010
 553 ===================================
 554   Abort if segment tag allocation fails in pool format _add_stripe_seg.
 555   Abort in _mirrored_transient_status if referenced log/image LV is not active.
 556   Add backtraces for dev_set() and dev_close_immediate() errors in set_lv().
 557   Log any unlink() error in clvmd remove_lockfile().
 558   Log any pipe write() or close() errors in clvmd child_init_signal().
 559   Detect if orphan vginfo was lost from cache before _lvmcache_update_vgname().
 560   Do a full rescan if some device is missing in lvm1 format read_pvs_in_vg.
 561   Add missing check that dm_pool_create succeeded in write_config_node().
 562   Use dm_snprintf in clvmd-command.c to ensure an overlong buffer is truncated.
 563   Don't write to buffer if its reallocation failed in clvmd do_command().
 564   Switch from float to fixed point percentage handling.
 565   Avoid misleading missing PV warnings in vgextend --restoremissing.
 566   Fix memory leak when VG allocation policy in metadata is invalid.
 567   Ignore unrecognised allocation policy found in metadata instead of aborting.
 568   Factor out tag printing into _out_tags and avoid leaking string buffer.
 569   Remove some unused variables & assignments.
 570   Add missing vg_release calls in _vg_read_by_vgid.
 571   Fix debug logging of derived flag LCK_CACHE in clvmd.
 572   Fix test for no system_dir in _init_backup().
 573   Disallow lvconvert ops that both allocate & free supplied PEs in a single cmd.
 574   Fix liblvm seg_size to give bytes not sectors.
 575   Add functions to look up LV/PV by name/uuid to liblvm.
 576   Free cmd_context if fallback to LVM1 fails in lvm2_main().
 577   Free device name buffer in dmsetup parse_loop_device_name() error paths.
 578   Close format lib if init_format_fn fails in _init_formats().
 579   Don't leave /proc/mounts open after dmeventd snapshot event processing.
 580   Fix out-of-scope arg_vgnames use in process_each_lv().
 581   Remove incorrect dm_task_destroy(NULL) from _node_clear_table() error path.
 582   Add missing closedir in _rm_blks after removing stray LVM1 VG files.
 583   Suppress 'No PV label' message when removing several PVs without mdas.
 584   Fix default /etc/lvm permissions to be 0755. (2.02.66)
 585
 586 Version 2.02.77 - 22nd November 2010
 587 ====================================
 588   Allocate a pool for dummy VG in _pvsegs_sub_single.
 589   Add PV and LV segment types and functions to liblvm.
 590   Add set_property functions to liblvm.
 591   Remove tag length restriction and allow / = ! : # & characters.
 592   Support repetition of --addtag and --deltag arguments.
 593   Add infrastructure for specific cmdline arguments to be repeated in groups.
 594   Split the_args cmdline arguments and values into arg_props and arg_values.
 595   Fix fsadm no longer to require '-f' to resize an unmounted filesystem.
 596   Fix fsadm to detect mounted filesystems on older systems. (2.0.75)
 597   Extend cling allocation policy to recognise PV tags (cling_by_tags).
 598   Add allocation/cling_tag_list to lvm.conf.
 599   Regenerate configure with 'autoreconf' for --enable-ocf. (2.02.76)
 600
 601 Version 2.02.76 - 8th November 2010
 602 ===================================
 603   Clarify error messages when activation fails due to activation filter use.
 604   Add pacemaker script VolumeGroup.ocf with configure --enable-ocf.
 605   Import make.tmpl into include/ Makefile.
 606   Fix handling of online filesystem resize (using new fsadm return code).
 607   Add DIAGNOSTICS section to fsadm man page.
 608   Modify fsadm to return different status code for check of mounted filesystem.
 609   Update VG metadata only once in vgchange when making multiple changes.
 610   Allow independent vgchange arguments to be used together.
 611   Automatically unmount invalidated snapshots in dmeventd.
 612   Suppress some superfluous messages from clang static analysis.
 613   Fix a deadlock caused by double close in clvmd.
 614   Fix NULL pointer dereference on too-large MDA error path in _vg_read_raw_area.
 615   Use static for internal _align_chunk() and _new_chunk() from pool-fast.c.
 616   Fix vgchange to process -a, --refresh, --monitor and --poll like lvchange.
 617   Add lvm2app functions to query any pv, vg, or lv property / report field.
 618
 619 Version 2.02.75 - 25th October 2010
 620 ===================================
 621   Annotate more variables and parameters as const.
 622   Fix missing variable initialization in cluster_send() function from cmirrord.
 623   Fix pointer for VG name in _pv_resize_single error code path.
 624   Fix warning for changed alignment requirements for dmeventd read/write func.
 625   Add global/metadata_read_only to use unrepaired metadata in read-only cmds.
 626   Don't take write lock in vgchange --refresh, --poll or --monitor.
 627   Skip dm devices in scan if they contain only error targets or are empty.
 628   Fix strict-aliasing compile warning in partition table scanning.
 629   Fix pthread mutex usage deadlock in clvmd.
 630   Automatically extend snapshots with dmeventd according to policy in lvm.conf.
 631   Add activation/snapshot_autoextend_threshold/percent to lvm.conf.
 632   Fix liblvm2cmd link order to support --as-needed.
 633   Remove dependency on libm by replacing floor() by an integer-based algorithm.
 634   Fix hang when repairing a mirrored-log that had both devs fail.
 635   Convey need for snapshot-merge target in lvconvert error message and man page.
 636   Add devices/disable_after_error_count config to limit access to failing devs.
 637   Give correct error message when creating a too-small snapshot.
 638   Implement vgextend --restoremissing to reinstate missing devs that return.
 639   Make lvconvert respect --yes and --force when converting an inactive log.
 640   Refactor and add 'get' functions for lv properties/fields.
 641   Update script for fsadm testing.
 642   Better support of noninteractive shell execution of fsadm.
 643   Fix usage of --yes flag for ReiserFS resize in fsadm.
 644   Fix detection of mounted filesystems for fsadm when udev is used.
 645   Fix assignment of default value to LVM variable in fsadm.
 646   Fix support for --yes flag for fsadm.
 647   Do not execute lvresize from fsadm --dry-run.
 648   Fix fsadm return error code from user's break action.
 649   Allow CC to be overridden at build time (for 'scan-build make').
 650   Rename 'flags' to 'status' in struct metadata_area.
 651   Avoid segfault by limiting partial mode for lvm1 metadata. (2.02.74)
 652   Use dm_zalloc and dm_pool_zalloc throughout.
 653   Add pv_get_property and create generic internal _get_property function.
 654   Add 'get' functions for pv and vg properties/fields.
 655   Make generic GET_*_PROPERTY_FN macros with secondary macro for vg, pv & lv.
 656   Add tags_format_and_copy() common function and call from _tags_disp.
 657   Add id_format_and_copy() common function and call from _uuid_disp.
 658   Refactor report.c '*_disp' functions to call supporting functions.
 659   Move parts of metadata*.[ch] into new {pv|vg|lv}.[ch] files.
 660   Fix vg_read memory leak with directory-based metadata.
 661   Fix memory leak of config_tree in reinitialization code path.
 662   Fix pool destruction order in dmeventd_lvm2_exit() to avoid leak debug mesg.
 663   Read whole /proc/self/maps file before working with maps entries.
 664   Speed up unquoting of quoted double quotes and backslashes.
 665   Speed up CRC32 calculations by using a larger lookup table.
 666
 667 Version 2.02.74 - 24th September 2010
 668 =====================================
 669   Allow : and @ to be escaped with \ in device names of PVs.
 670   Replace alloca with dm_malloc in _aligned_io to avoid stack corruption.
 671   Fix partial mode operations for lvm1 metadata format.
 672   Track recursive filter iteration to avoid refreshing while in use. (2.02.56)
 673   Revert to old glibc vsnprintf behaviour in emit_to_buffer() to catch overflow.
 674   Allocate buffer for metadata tags dynamically to remove 4k limit.
 675   Add random suffix to archive file names to prevent races when being created.
 676   Reinitialize archive and backup handling on toolcontext refresh.
 677   Make poll_mirror_progress report PROGRESS_CHECK_FAILED if LV is not a mirror.
 678   Like mirrors, don't scan origins if ignore_suspended_devices() is set.
 679   Fix return type qualifier to avoid compiler warning. (2.02.69)
 680   Automatically generate LSB Requires-Start for clvmd init script.
 681   Fix return code of pvmove --abort PV.
 682   Fix pvmove --abort to remove even for empty pvmove LV.
 683   Add configure --with-default-data-alignment.
 684   Update heuristic used for default and detected data alignment.
 685   Add "devices/default_data_alignment" to lvm.conf.
 686   Add implementation for simple numeric 'get' property functions.
 687   Define GET_NUM_PROPERTY_FN macro to simplify numeric property 'get' function
 688   Add properties.[ch] to lib/report using columns.h.
 689   Add macro definitions to report infrastructure for character array length.
 690   Remove explicit double quotes from columns.h 'id' entries.
 691   Add 'flags' field to columns.h and define FIELD_MODIFIABLE.
 692   Add vg_mda_size and vg_mda_free functions.
 693   Simplify MD/swap signature detection in pvcreate and allow aborting.
 694   Allow --yes to be used without --force mode.
 695   Fix file descriptor leak in swap signature detection error path.
 696   Detect and allow abort in pvcreate if LUKS signature is detected.
 697   Always mask lock flags correctly when checking for LCK_WRITE.
 698
 699 Version 2.02.73 - 18th August 2010
 700 ==================================
 701   Fix potential for corruption during cluster mirror device failure.
 702   Use 'SINGLENODE' instead of 'dead' in clvmd singlenode messages.
 703   Ignore snapshots when performing mirror recovery beneath an origin.
 704   Pass LCK_ORIGIN_ONLY flag around cluster.
 705   Add suspend_lv_origin and resume_lv_origin using LCK_ORIGIN_ONLY.
 706   Allow internal suspend and resume of origin without its snapshots.
 707   Fix dev_manager_transient to access -real device not snapshot-origin.
 708   Monitor origin -real device below snapshot instead of overlay device.
 709   Don't really change monitoring status when in test mode.
 710   Fix some exit statuses when starting/stopping monitoring fails.
 711   Enable snapshot monitoring by default when dmeventd is enabled.
 712   Move cloned libdevmapper-event client code from segments into lib/activate.
 713   Fix 'lvconvert --splitmirrors' in cluster operation.
 714   Fix clvmd init script exit code to return 4 when executed as non-root user.
 715   Change default alignment of pe_start to 1MB.
 716   Add --norestorefile option to pvcreate.
 717   Require --restorefile when using pvcreate --uuid.
 718   Recognise and give preference to md device partitions (blkext major).
 719   Never scan internal LVM devices.
 720   Don't ignore user-specified PVs in split-mirror operations. (2.02.71)
 721   Fix data corruption bug in cluster mirrors.
 722   Require logical volume(s) to be explicitly named for lvconvert --merge.
 723   Avoid changing aligned pe_start as a side-effect of very verbose logging.
 724   Use built-in rule for device aliases: block/ < dm- < disk/ < mapper/ < other.
 725   Fix const warning in dev_manager_info() and _dev_manager_lv_rmnodes().
 726   Fix const warning in archive_file structure from archive.c.
 727   Clean generated files .exported_symbols_generated, example.conf for distclean.
 728   Handle failure of all mirrored log devices and all but one mirror leg.
 729   Disallow 'mirrored' log type for cluster mirrors.
 730   Do not use VPATH in include/Makefile.
 731   Fix exported_symbols generation to use standard compiler arguments.
 732   Use #include <> not "" in lvm2app.h which gets installed on the system.
 733   Make lib and liblvm.device-mapper wait for include file generation.
 734   Fix configure to supply DEFAULT_RUN_DIR to Makefiles.
 735   Fix allocation of wrong number of mirror logs with 'remove' fault policy.
 736
 737 Version 2.02.72 - 28th July 2010  [CVE-2010-2526]
 738 =================================================
 739   Change clvmd to communicate with lvm2 via a socket in /var/run/lvm.
 740   Return controlled error if clvmd is run by non-root user.
 741   Add configure --default-run-dir for /var/run/lvm.
 742   Never use clvmd singlenode unless explicitly requested with -Isinglenode.
 743
 744 Version 2.02.71 - 28th July 2010
 745 ================================
 746   Document LVM fault handling in doc/lvm_fault_handling.txt.
 747   Make vgck warn about missing PVs.
 748   Clarify help text for vg_mda_count.
 749   Check if cluster log daemon is running before allowing cmirror create.
 750   Add unit-tests dir.
 751   Add configure --enable-testing and reports and report-generators dirs.
 752   Correct LV list order used by lvconvert when splitting a mirror.
 753   Check if LV with specified name already exists when splitting a mirror.
 754   Fix suspend/resume logic for LVs resulting from splitting a mirror.
 755   Update pvcreate, {pv|vg}change, and lvm.conf man pages about metadataignore.
 756   Switch cmirrord and clvmd to use dm_create_lockfile.
 757   Allow clvmd pidfile to be configurable.
 758   Update comments about memory handling in lvm2app.h.
 759   Add more verbose messages while checking volume_list and hosttags settings.
 760   Add log_error when strdup fails in {vg|lv}_change_tag().
 761   Remove unnecessary includes in liblvm files.
 762   Use __attribute__ consistently throughout.
 763   Fix redundant declarations and always compile with -Wredundant-decls.
 764   Fix possible hang when all mirror images of a mirrored log fail.
 765   Pass metadataignore to pv_create, pv_setup, _mda_setup, and add_mda.
 766   Init mda->list in mda_copy.
 767   Do not log backtrace in valid _lv_resume() code path.
 768   Cleanup help strings in configure.in.
 769   Prompt if metadataignore with vgextend or pvchange would adjust vg_mda_copies.
 770   Adjust vg_mda_copies if metadataignore given with vgextend or pvchange.
 771   Adjust auto-metadata repair and caching logic to try to cope with empty mdas.
 772
 773 Version 2.02.70 - 6th July 2010
 774 ===============================
 775   Remove log directly if all mirror images of a mirrored log fail.
 776   Randomly select which mdas to use or ignore.
 777   Add some missing standard configure.in checks.
 778   Add printf format attributes to yes_no_prompt and fix a caller.
 779   Always pass unsuspended dm devices through persistent filter to other filters.
 780   Move test for suspended dm devices ahead of other filters.
 781   Fix another segfault in clvmd -R if no response from daemon. (2.02.68)
 782   Remove superfluous suspended device counter from clvmd.
 783   Fix lvm shell crash when input is entirely whitespace.
 784   Update partial mode warning message.
 785   Preserve memlock balance in clvmd when activation triggers a resume.
 786   Restore the removemissing behaviour of lvconvert --repair --use-policies.
 787
 788 Version 2.02.69 - 30th June 2010
 789 ================================
 790   Fix vgremove to allow removal of VG with missing PVs. (2.02.52)
 791   Add metadata/vgmetadatacopies to lvm.conf.
 792   Add --metadataignore to pvcreate and vgextend.
 793   Add vg_mda_copies, pv_mda_used_count and vg_mda_used_count to reports.
 794   Describe --vgmetadatacopies in lvm.conf and other man pages.
 795   Add --[vg]metadatacopies to select number of mdas to use in a VG.
 796   Make the metadata ignore bit control read/write metadata areas in a PV.
 797   Add pvchange --metadataignore to set or clear a metadata ignore bit.
 798   Refactor metadata code to prepare for --metadataignore / --vgmetadatacopies.
 799   Ensure region_size of mirrored log does not exceed its full size.
 800   Generate liblvm2app exported symbols from header file.
 801   Preload libc locale messages to prevent reading it in memory locked state.
 802   Fix handling of simultaneous mirror image and mirrored log image failure.
 803
 804 Version 2.02.68 - 23rd June 2010
 805 ================================
 806   Fix clvmd initscript status to print only active clustered LVs.
 807   Add lv_path to reports to offer full /dev pathname.
 808   Fix typo in warning message about missing device with allocated data areas.
 809   Add device name and offset to raw_read_mda_header error messages.
 810   Honour log argument when down-converting stacked mirror.
 811   Sleep to workaround clvmd -S race: socket closed early and server drops cmd.
 812   Use early udev synchronisation and update of dev nodes for clustered mirrors.
 813   Remove incorrect inclusion of kdev_t.h from cmirrord/functions.h.
 814   Add man pages for lvmconf and non-existent lvmsadc and lvmsar tools.
 815   Exit successfully when using -o help (but not -o +help) with LVM reports.
 816   Do not use internal DLM lock definitions in generic LVM2 clvmd code.
 817   Add --force, --nofsck and --resizefs to lvresize/extend/reduce man pages.
 818   Fix lvm2cmd example in documentation.
 819   Allow use of lvm2app and lvm2cmd headers in C++ code.
 820   Remove unused #includes from clvmd files and introduce clvmd-common.h.
 821   Move common inclusions to clvmd-common.h.
 822   Use #include "" for libdevmapper.h and configure.h throughout tree.
 823   Fix LVM_PATH expansion when exec_prefix=NONE. (2.02.67)
 824   Fix segfault in clvmd -R if no response from daemon received.
 825
 826 Version 2.02.67 - 4th June 2010
 827 ===============================
 828   Handle failed restart of clvmd using -S switch properly.
 829   Fix clvmd initscript restart command to start clvmd if not yet running.
 830   Use built-in absolute paths in clvmd (clvmd restart and PV and LV queries).
 831   Require partial option in lvchange --refresh for partial LVs.
 832   Do not fail lvm_init() if init_logging() or _init_rand() generates an errno.
 833   Don't merge unchanged persistent cache file before dumping if tool scanned.
 834   Fix incorrect memory pool deallocation while using vg_read for files.
 835   Add --type parameter description to the lvcreate man page.
 836   Replace strncmp kernel version number checks with proper ones.
 837   Avoid selecting names under /dev/block if there is an alternative.
 838   Update clustered log kernel module name to log-userspace for 2.6.31 onwards.
 839   Add replicators' LVs to dtree for activation.
 840   Supress activation message if there is a missing replicator VG.
 841   Fix scripts/relpath.awk to work in mawk
 842   Extend lock_vol to check for missing replicator VGs first.
 843   Update _process_one_vg and process_each_lv_in_vg to populate cmd_vg.
 844   Add cmd_vg structure and associated functions for replicator.
 845   Extend _lv_each_dependency() to handle replicator dependencies.
 846   Add check_replicator_segment() to catch internal replicator errors.
 847   Initial support for replicator metadata.
 848   Extend process_each_lv_in_vg() to provide list of failed lvnames.
 849   Consistently return ECMD_FAILED if process_each_*lv() is interrupted.
 850
 851 Version 2.02.66 - 20th May 2010
 852 ===============================
 853   If unable to obtain snapshot percentage leave value blank on reports.
 854   Add install_system_dirs and install_initscripts makefile targets.
 855   Add configure options for system and locking directories.
 856   Generate example.conf so default lvm.conf contents can be configured.
 857   Install lvmconf script by default.
 858   Remove unnecessary versioned dmeventd plugin symlinks.
 859   Add tests for lvm_vgname_from_{pvid|device}.
 860   Add lvm2app interfaces to lookup a vgname from a pvid and pvname.
 861   Update pvchange to always obtain a vg handle for each pv to process.
 862   Add find_vgname_from_{pvname|pvid} functions.
 863   Add pvid_from_devname and lvmcache_vgname_from_pvid lvmcache functions.
 864   Validate orphan and VG_GLOBAL lock order too.
 865   Accept orphan VG names as parameters to lock_vol() and related functions.
 866   Use is_orphan_vg in place of hard-coded prefix tests and add is_global_vg.
 867
 868 Version 2.02.65 - 17th May 2010
 869 ===============================
 870   Fix clvmd init script never to deactivate non-clustered volume groups.
 871   Disallow vgchange --clustered if there are active mirrors or snapshots.
 872   Introduce lv_is_mirrored.
 873   Use /bin/bash for scripts with bashisms.
 874   Skip internal lvm devices in scan if ignore_suspended_devices is set.
 875   Do not merge old device cache after we run full scan. (2.02.56)
 876   Add pkgconfigdir Makefile variable for make install override.
 877   Configure pkgconfig udev and selinux dependencies.
 878   Switch Libs.private to Requires.private in devmapper.pc and lvm2app.pc.
 879   Use pkgconfig Requires.private for devmapper-event.pc.
 880   Add libdevmapper to linked libdevmapper-event.so.
 881   Link liblvm2cmd.so with libdevmapper-event and libdevmapper.
 882   Fix truncated total size displayed by pvscan.
 883   Add new --sysinit compound option to vgchange and lvchange.
 884   Drop duplicate errors for read failures and missing devices to verbose level.
 885   Use $(libdir)/lvm2 with make install_lvm2_plugin.
 886   Use $(libdir)/device-mapper with make install_dm_plugin.
 887   Add dm_list_splice() function to join two lists together.
 888
 889 Version 2.02.64 - 30th April 2010
 890 =================================
 891   Avoid pointless initialisation when the 'version' command is run directly.
 892   Fix memory leak for invalid regex pattern input.
 893   Display invalid regex pattern for filter configuration in case of error.
 894   Remove no-longer-used arg_ptr_value.
 895   Fix -M and --type to use strings, not pointers that change on config refresh.
 896   Fix lvconvert error message when existing mirrored LV is not found.
 897   Set appropriate udev flags for reserved LVs.
 898   Disallow the direct removal of a merging snapshot.
 899   Don't preload the origin when removing a snapshot whose merge is pending.
 900   Disallow the addition of mirror images while a conversion is happening.
 901   Disallow primary mirror image removal when mirror is not in-sync.
 902   Remove obsolete --name parameter from vgcfgrestore.
 903   Add -S command to clvmd to restart the daemon preserving exclusive locks.
 904   Increment lvm2app version from 1 to 2 (memory allocation changes).
 905   Change lvm2app memory alloc/free for pv/vg/lv properties.
 906   Change daemon lock filename from lvm2_monitor to lvm2-monitor for consistency.
 907   Install symbolic .so links with relative paths between usrlibdir and libdir.
 908   Add awk script relpath.awk to calculate paths for relative symlinks.
 909   Use @AWK@ in makefiles.
 910   Fix double DESTDIR usage for infodir and mandir.
 911
 912 Version 2.02.63 - 14th April 2010
 913 =================================
 914   Rename lvm_dump.sh to lvmdump.sh.
 915   Allow incomplete mirror restore in lvconvert --repair upon insufficient space.
 916   Do not reset position in metadata ring buffer on vgrename and vgcfgrestore.
 917   Allow VGs with active LVs to be renamed.
 918   Use UUIDs instead of names while processing event handlers.
 919   Only pass visible LVs to tools in cmdline VG name/tag expansions without -a.
 920   Use typedefs for toollib process_each functions.
 921   Use C locales and use_mlockall for clvmd.
 922   Refactor code related to vg->pvs list and add pv->vg link.
 923   Mask LCK_HOLD flag in cluster VG locks for backwards compatibility.
 924   Add activation/polling_interval to lvm.conf as --interval default.
 925   Don't ignore error if resuming any LV fails in resume_lvs.
 926   Skip closing persistent filter cache file if open failed.
 927   Install .a and .so links into $(usrlibdir).
 928   Add --enable-write_install options to install user-writable files.
 929   Use INSTALL_PROGRAM/DATA/WDATA target.
 930   Switch from using VPATH  to vpath in Makefiles.
 931   Permit mimage LVs to be striped in lvcreate, lvresize and lvconvert.
 932   Fix pvmove allocation to take existing parallel stripes into account.
 933   Add pvmove_source_seg to struct lv_segment.
 934   Fix incorrect removal of symlinks after LV deactivation fails.
 935   Fix is_partitioned_dev not to attempt to reopen device.
 936   Fix another thread race in clvmd.
 937   Refactor management of vg->pvs list.
 938   Fix lcov rules and generate better coverage report.
 939   Improve vg_validate to detect some loops in lists.
 940   Change most remaining log_error WARNING messages to log_warn.
 941   Always use blocking lock for VGs and orphan locks.
 942   Allocate all memory for segments from private VG mempool.
 943   Return newly allocated PV segment after segment split.
 944   Optimise searching PV segments for seeking the most recently-added.
 945   Remove vg_validate call when parsing cached metadata.
 946   Use hash table of LVs to speed up parsing of text metadata with many LVs.
 947   Fix two vg_validate messages, adding whitespace and parentheses.
 948   When dmeventd is not forking because of -d flag, don't kill parent process.
 949   Fix 'make install' when $(builddir) is different from $(srcdir).
 950   Fix dso resource leak in error path of dmeventd.
 951   Use C locales and use_mlockall for dmeventd.
 952   Fix --alloc contiguous policy only to allocate one set of parallel areas.
 953   Do not allow {vg|lv}change --ignoremonitoring if on clustered VG.
 954   Improved dependency tracking for dmeventd and liblvm2cmd sources.
 955   Improved Makefile rules for distclean and cflow targets.
 956   Add ability to create mirrored logs for mirror LVs.
 957   Fix clvmd cluster propagation of dmeventd monitoring mode.
 958   Allow ALLOC_ANYWHERE to split contiguous areas.
 959   Use INTERNAL_ERROR for internal errors throughout tree.
 960   Add some assertions to allocation code.
 961   Introduce pv_area_used into allocation algorithm and add debug messages.
 962   Add activation/monitoring to lvm.conf.
 963   Add --monitor and --ignoremonitoring to lvcreate.
 964   Allow dynamic extension of array of areas selected as allocation candidates.
 965   Export and use only valid cookie value in test suite.
 966   Remove const modifier for struct volume_group* from process_each_lv_in_vg().
 967   Don't allow resizing of internal logical volumes.
 968   Fix libdevmapper-event pkgconfig version string to match libdevmapper.
 969   Avoid scanning all pvs in the system if operating on a device with mdas.
 970   Add configure --with-clvmd=singlenode to use clvmd w/o cluster infrastructure.
 971   Get stacktrace if testsuite test drops core and lvm was built with debugging.
 972   Disable long living process flag in lvm2app.
 973   Fix pvcreate device md filter check.
 974   Suppress repeated errors about the same missing PV uuids.
 975   Bypass full device scans when using internally-cached VG metadata.
 976   Only do one full device scan during each read of text format metadata.
 977   Remove unnecessary full_scan parameter from get_vgids and get_vgnames calls.
 978   Look up missing PVs by uuid not dev_name in _pvs_single to avoid invalid stat.
 979   Make find_pv_in_vg_by_uuid() return same type as related functions.
 980   Introduce is_missing_pv().
 981   Fix clvmd Makefile to not overwrite LIBS from template definition.
 982
 983 Version 2.02.62 - 9th March 2010
 984 ================================
 985   Add use_mlockall and mlock_filter to activation section of lvm.conf.
 986   Add default alternative to mlockall using mlock to reduce pinned memory size.
 987   Remove -rdynamic from static builds.
 988   Update checks for pthread, readline & selinux libs and link only when needed.
 989   Introduce makefile vars UDEV_LIBS, DL_LIBS, SELINUX_LIBS, STATIC_LIBS.
 990   Introduce makefile vars LVMINTERNAL_LIBS, READLINE_LIBS, PTHREAD_LIBS.
 991   Toggle configure help to print --disable-fsadm.
 992   Use $() instead of ${} consistently for all Makefile variables.
 993   Replace CFLOW_CMD only in make.tmpl and use it as variable elsewhere.
 994   Use $(top_builddir) for inclusion of make.tmpl in Makefiles.
 995   Fix autoconf warning about ignored datarootdir.
 996   Increase AC_PREREQ version to 2.61 (for AC_PROC_SED, AC_PROG_MKDIR_P).
 997   Handle misaligned devices that report alignment_offset of -1.
 998   Extend core allocation code in preparation for mirrored log areas.
 999   Rewrite clvmd init script.
1000   Remove lvs_in_vg_activated_by_uuid_only call.
1001   No longer fall back to looking up active devices by name if uuid not found.
1002   Don't touch /dev in vgmknodes if activation is disabled.
1003   Update lvm2app.h Doxygen comments and add lvm2app Doxygen config file.
1004   Update nightly tests and lvm2app unit tests to cover tags.
1005   Add lvm2app functions lvm_{vg|lv}_{get|add|remove}_tag() functions.
1006   Add dm_pool_strdup to allocate and copy memory in tag library function.
1007   Refactor vgcreate, vgchange, and lvchange for tag library function.
1008   Refactor snapshot-merge deptree and device removal to support info-by-uuid.
1009
1010 Version 2.02.61 - 15th February 2010
1011 ====================================
1012   Fix some consts and floating point gcc warnings.
1013   Fix dm_report_field_uint64 function to accept 64-bit ints.
1014   Change readhead display to use 32-bit -1 const instead of 64-bit.
1015   Add LVM_SUPPRESS_LOCKING_FAILURE_MESSAGES environment variable.
1016   Remove hard-coding that skipped _mimage devices from 11-dm-lvm.rules.
1017   Use udev transactions in test suite.
1018   Set udev state automatically instead of using LVM_UDEV_DISABLE_CHECKING.
1019   Add lvm_pv_get_size, lvm_pv_get_free and lvm_pv_get_dev_size to lvm2app.
1020   Change lvm2app to return all sizes in bytes as documented (not sectors).
1021   Add 'fail_if_percent_unsupported' arg to _percent and _percent_run.
1022   Remove false "failed to find tree node" error when activating merging origin.
1023   Exit with success when lvconvert --repair --use-policies performs no action.
1024   Accept a list of LVs with 'lvconvert --merge @tag' using process_each_lv.
1025   Avoid unnecessary second resync when adding mimage to core-logged mirror.
1026   Exclude internal VG names and uuids from lists returned through lvm2app.
1027   Add %ORIGIN support to lv{create,extend,reduce,resize} --extents.
1028   Add _mda_copy to clone a struct metadata_area.
1029   Remove pointless versioned symlinks to dmeventd plugin libraries.
1030   Fix dmeventd snapshot plugin build dependency.
1031   Make clvmd -V return status zero.
1032   Remove unnecessary 'dmsetup resume' following 'dmsetup create' in tests.
1033   Fix cmirrord segfault in clog_cpg list processing when converting mirror log.
1034   Deactivate temporary pvmove mirror cluster-wide when activating it fails.
1035   Always query device by uuid and not name in clvmd.
1036   Add missing metadata vg_reverts in pvmove error paths.
1037   Unlock shared lock in clvmd if activation calls fail.
1038   Return success from dev_manager_info with non-existent uuid if ioctl succeeds.
1039
1040 Version 2.02.60 - 23rd January 2010
1041 ===================================
1042   Extend cmirrord man page.
1043   Sleep before first progress check if pvmove/lvconvert interval has prefix '+'.
1044   Default to checking progress before waiting in _wait_for_single_lv.
1045   Fix cmirror initscript (including syntax error).
1046   Eliminate avoidable ioctls for checking open_count in _add_new_lv_to_dtree.
1047   Disable memory debugging if dmeventd is configured. (Not thread-safe.)
1048   Fix first log message prefix in syslog for dmeventd plugins.
1049   Fix exported symbols names for dmeventd lvm2 wrapper plugin.
1050   Make failed locking initialisation messages more descriptive.
1051
1052 Version 2.02.59 - 21st January 2010
1053 ===================================
1054   Add libdevmapper-event-lvm2.so to serialise dmeventd plugin liblvm2cmd use.
1055   Cleanup memory initialization and freeing in pv_read() and pv_create().
1056   Clear pointer and counters after their release in _fin_commands().
1057   Stop dmeventd trying to access already-removed snapshots.
1058   Remove (fallback) /dev mknod from cmirrord.
1059   Add t-topology-support.sh and t-snapshot-merge.sh tests.
1060   Fix clvmd to never scan suspended devices.
1061   Fix dmeventd build outside source tree.
1062   Assorted cmirror code changes to remove various compiler warnings.
1063   Fix detection of completed snapshot merge.
1064   Add Red Hat cmirror initscript (unfinished).
1065   Add cmirrord man page (incomplete).
1066   Make cluster log communication structures architecture independant.
1067   Fix cluster log in-memory bitmap handling.
1068   Improve snapshot merge metadata import validation.
1069   Improve target type compatibility checking in _percent_run().
1070   Add 'target_status_compatible' method to 'struct segtype_handler'.
1071   Change underscore to hyphen in table line for clustered log type.
1072
1073 Version 2.02.58 - 14th January 2010
1074 ===================================
1075   Cleanup some minor gcc warnings.
1076   Add --merge to lvconvert to merge a snapshot into its origin.
1077   Fix clvmd automatic target module loading crash (no reset_locking fn).
1078   Fix allocation code not to stop at the first area of a PV that fits.
1079
1080 Version 2.02.57 - 12th January 2010
1081 ===================================
1082   Ensure exactly one process returns from poll_daemon(), never two.
1083   Reset _vgs_locked in lvmcache_init() in child after forking.
1084   Define {DM, LVM}_UDEV_DISABLE_CHECKING=1 environment variables during tests.
1085   Enable udev_sync and udev_rules in lvm.conf by default while running tests.
1086   If LVM_UDEV_DISABLE_CHECKING in set in environment, disable udev warnings.
1087   Add --splitmirrors to lvconvert to split off part of a mirror.
1088   Change background polldaemon's process name to "(lvm2)".
1089   Allow vgremove to remove a VG with PVs missing after a prompt.
1090   Return success in lvconvert --repair --use-policies on failed allocation.
1091   Keep log type consistent when changing mirror image count.
1092   Always set environment variables for an LVM2 device in 11-dm-lvm.rules.
1093   Add activation/udev_rules config option in lvm.conf.
1094   Add consts to text metadata flag structs.
1095   Add macros outfc, outsize, outhint and function out_text_with_comment.
1096   Reimplement report FIELD macro using offsetof instead of static structs.
1097   Fix fsadm man page typo (fsdam).
1098   Rename mirror_device_fault_policy to mirror_image_fault policy.
1099   Remove empty PV devices if lvconvert --repair is using defined policies.
1100   Use fixed buffer to prevent stack overflow in persistent filter dump.
1101   Use extended status of new kernel snapshot target 1.8.0 to detect when empty.
1102   Insert stack macros in suspend_lv, resume_lv & (de)activate_lv callers.
1103   Add --poll flag to vgchange and lvchange to control background daemon launch.
1104   Propagate metadata commit and revert notifications to other cluster nodes.
1105   Use proper mask for VG lock mode in clvmd.
1106   Allow precommitted metadata to be dropped from lvmcache.
1107   Move processing of VG locks to separate function in clvmd.
1108   Properly decode all flags in clvmd messages including VG locks.
1109   Properly handle precommitted cache flag when only committed metadata present.
1110   Resume renamed volumes in reverse order to preserve memlock pairing.
1111   Drop cached metadata after device was auto-repaired and removed from VG.
1112   Clear MISSING_PV flag if PV reappeared and is empty.
1113   Fix removal of multiple devices from a mirror.
1114   Also clean up PVs flagged as missing in vgreduce --removemissing --force.
1115   Introduce INTERNAL_ERROR macro for error messages and use throughout.
1116   Remove superfluous returns from void functions.
1117   Destroy allocated mempool in _vg_read_orphans() error path.
1118   Fix some pvresize and toollib error paths with missing VG releases/unlocks.
1119   Explicitly call suspend for temporary mirror layer.
1120   Allow use of precommitted metadata when a PV is missing.
1121   Add memlock information to do_lock_lv debug output.
1122   Always bypass calls to remote cluster nodes for non-clustered VGs.
1123   Permit implicit cluster lock conversion in pre/post callbacks on local node.
1124   Permit implicit cluster lock conversion to the lock mode already held.
1125   Fix lock flag masking in clvmd so intended code paths get invoked.
1126   Replace magic masks in cluster locking code by defined masks.
1127   Remove newly-created mirror log from metadata if initial deactivation fails.
1128   Correct activated or deactivated text in vgchange summary message.
1129   Improve pvmove error message when all source LVs are skipped.
1130   Fix memlock imbalance in lv_suspend if already suspended.
1131   Fix pvmove test mode not to poll (and fail).
1132   Fix vgcreate error message if VG already exists.
1133   Fix tools to use log_error when aborted due to user response to prompt.
1134   Fix ignored readahead setting in lvcreate --readahead.
1135   Fix clvmd memory leak in lv_info_by_lvid by calling release_vg.
1136   If aborting due to internal error, always send that message to stderr.
1137   Add global/abort_on_internal_errors to lvm.conf to assist testing.
1138   Fix test Makefiles when builddir and srcdir differ.
1139   Impose limit of 8 mirror images to match the in-kernel kcopyd restriction.
1140   Use locking_type 3 (compiled in) for lvmconf --enable-cluster.
1141   Remove list.c and list.h with no-longer-used dm_list macros and functions.
1142   Log failure type and recognise type 'F' (flush) in dmeventd mirror plugin.
1143   Extend internal PV/VG/LV/segment status variables from 32-bit to 64-bit.
1144
1145 Version 2.02.56 - 24th November 2009
1146 ====================================
1147   Add missing vg_release to pvs and pvdisplay to fix memory leak.
1148   Do not try to unlock VG which is not locked in _process_one_vg.
1149   Move is_long_lived persistent_filter_dump to happen after every full scan.
1150   Refresh device filters before full device rescan in lvmcache.
1151   Return error status if vgchange fails to activate some volume.
1152   Fix suspend/resume lock type test causing unbalanced memory locking.
1153   Revert vg_read_internal change as clvmd was not ready for vg_read. (2.02.55)
1154
1155 Version 2.02.55 - 19th November 2009
1156 ====================================
1157   Fix deadlock when changing mirrors due to unpaired memlock refcount changes.
1158   Use separate memlock counter for dmeventd handlers to permit device scanning.
1159   Directly restrict vgchange to activating visible LVs.
1160   Fix pvmove region_size overflow for very large PVs.
1161   Fix lvcreate and lvresize %PVS argument always to use sensible total size.
1162   Tidy some uses of arg_count and introduce arg_is_set.
1163   Export outnl and indent functions for modules.
1164   Flush stdout after yes/no prompt.
1165   Update vgsplit and vgcreate to use vg_set_clustered.
1166   Add vg_mda_count and vg_set_clustered library functions.
1167   Add more vgcreate and vgsplit nightly tests.
1168   Insert some missing stack macros into activation code.
1169   Recognise DRBD devices and handle them like md devices.
1170
1171 Version 2.02.54 - 26th October 2009
1172 ===================================
1173   Update lvcreate/lvconvert man pages to explain PhysicalVolume parameter.
1174   Document --all option in man pages, cleanup {pv|vg|lv}{s|display} man pages.
1175   Permit snapshots of mirrors.
1176   Cleanup mimagetmp LV if allocation fails for new lvconvert mimage.
1177   Fix clvmd segfault when refresh_toolcontext fails.
1178   Remember to clear 'global lock held during cache refresh' state after use.
1179   Use udev flags support in LVM and apply various fixes to udev rules.
1180   Delay announcing mirror monitoring to syslog until initialisation succeeded.
1181   Handle metadata with unknown segment types more gracefully.
1182   Set default owner and group to null.
1183   Add dmeventd.static to the build.
1184   Disable realtime support code by default.
1185   Make clvmd return 0 on success rather than 1.
1186   Add --pvmetadatacopies for pvcreate, vgcreate, vgextend, vgconvert.
1187   Add implict pvcreate support to vgcreate and vgextend.
1188   Correct example.conf to indicate that lvm2 not lvm1 is the default format.
1189   Remove an unused stray LVM1_SUPPORT ifdef.
1190   Only include selinux libs in libdevmapper.pc when selinux build enabled.
1191   Allow for a build directory separate from the source.
1192   Update distclean target for rename clogd to cmirrord. (2.02.52)
1193   Only do lock conversions in clvmd if we are explicitly asked for one.
1194   Introduce percent_range_t and centralise snapshot full/mirror in-sync checks.
1195   Factor out poll_mirror_progress and introduce progress_t.
1196   Distinguish between powers of 1000 and powers of 1024 in unit suffixes.
1197   Restart lvconverts in vgchange by sharing lv_spawn_background_polling.
1198   Generalise polldaemon code by changing mirror-specific variable names.
1199   Don't attempt to deactivate an LV if any of its snapshots are in use.
1200   Return error if lv_deactivate fails to remove device from kernel.
1201   Provide alternative implementation of obsolete siginterrupt().
1202   Consolidate LV allocation into alloc_lv().
1203   Treat input units of both 's' and 'S' as 512-byte sectors.  (2.02.49)
1204   Use standard output units for 'PE Size' and 'Stripe size' in pv/lvdisplay.
1205   Add configure --enable-units-compat to set si_unit_consistency off by default.
1206   Add global/si_unit_consistency to enable cleaned-up use of units in output.
1207
1208 Version 2.02.53 - 25th September 2009
1209 =====================================
1210   Create any directories in /dev with DM_DEV_DIR_UMASK (022).
1211   Enable dmeventd monitoring section of config file by default.
1212   Update lvm2 monitoring script to lvm2_monitoring_init_red_hat.in.
1213   Fix lvm2app test to run under test/api subdirectory only when configured.
1214   Add vg_is_resizeable() and cleanup reference to VG_RESIZEABLE.
1215
1216 Version 2.02.52 - 15th September 2009
1217 =====================================
1218   Update _process_one_vg to cleanup properly after vg_read_error.
1219   Add lots of missing stack debug messages to tools.
1220   Make readonly locking available as locking type 4.
1221   Fix readonly locking to permit writeable global locks (for vgscan). (2.02.49)
1222   Add DM_UDEV_RULES_VSN environment variable to udev rules.
1223   Update vgsplit, vgmerge, and vgrename to obey new vgname ordering rules.
1224   Make lvm2app pv_t, lv_t, vg_t handle definitions consistent with lvm_t.
1225   Enforce an alphabetical lock ordering on vgname locking.
1226   Prioritise write locks over read locks by default for file locking.
1227   Add local lock files with suffix ':aux' to serialise locking requests.
1228   Fix global locking in PV reporting commands (2.02.49).
1229   Fix pvcreate string termination in duplicate uuid warning message.
1230   Don't loop reading sysfs with pvcreate on a non-blkext partition (2.02.51).
1231   Fix vgcfgrestore error paths when locking fails (2.02.49).
1232   Update Makefile distclean target.
1233   Add libudev configuration check.
1234   Make clvmd check corosync to see what cluster interface it should use.
1235   Add clvmd autodetection check and cleanup related configure messages.
1236   Rewrite clvmd configuration code to cope with all combinations of libs.
1237   Added configure --enable-cmirrord to build the cluster mirror log daemon.
1238   Rename clogd to cmirrord.
1239   Make lvchange --refresh only take a read lock on volume group.
1240   Fix race where non-blocking file locks could be granted in error.
1241   Fix vgextend error path - if ORPHAN lock fails, unlock / release vg (2.02.49).
1242   Fix compile warning in clvmd.
1243   Clarify use of PE ranges in lv{convert|create|extend|resize} man pages.
1244   Remove useless _pv_write wrapper.
1245   Add lvm2app.sh to tests conditional upon configure --enable-applib.
1246   Add lvm_vg_is_clustered, lvm_vg_is_exported, and lvm_vg_is_partial.
1247   Update lvm_vg_remove to require lvm_vg_write to commit remove to disk.
1248   Update test/api/test.c to call lvm_vg_create and lvm_vg_remove.
1249
1250 Version 2.02.51 - 6th August 2009
1251 =================================
1252   Fix locking in clvmd (2.02.50).
1253   Add --noudevsync option for relevant LVM tools.
1254   Add activation/udev_sync to lvm.conf.
1255   Only change LV symlinks on ACTIVATE not PRELOAD.
1256   Make lvconvert honour log mirror options combined with downconversion.
1257   Allow LV suspend while --ignorelockingfailure is in force.
1258   Update synopsis in lvconvert manpage to mention --repair.
1259   Set cookies in activation code and wait for udev to complete processing.
1260   Added configure --enable-udev_rules --enable-udev_sync.
1261   Added configure --with-udev-prefix --with-udevdir.
1262   Added udev dir to hold udev rules.
1263   Add devices/data_alignment_detection to lvm.conf.
1264   Add devices/data_alignment_offset_detection to lvm.conf.
1265   Add --dataalignmentoffset to pvcreate to shift start of aligned data area.
1266   Fix _mda_setup() to not check first mda's size before pe_align rounding.
1267   Document -I option of clvmd in the man page.
1268   Fix configure script to handle multiple clvmd selections.
1269   Fix lvm2app.pc installation filename.
1270   Remove pv_t, vg_t & lv_t handles from lib.  Only liblvm uses them.
1271   Rename lvm.h to lvm2app.h for now.
1272
1273 Version 2.02.50 - 28th July 2009
1274 ================================
1275   Change test/api/test.c prompt so it's not confused with the main lvm prompt.
1276   Update liblvm unit tests in test/api to cover latest liblvm changes.
1277   Add unimplemented lvm_lv_resize and lvm_pv_resize skeletons to liblvm.
1278   Add lvm_library_get_version to liblvm.
1279   Add lvm_config_override to liblvm to allow caller to override LVM config.
1280   Add lvm_lv_is_active and lvm_lv_is_suspended to liblvm.
1281   Add lvm_lv_activate and lvm_lv_deactivate to liblvm.
1282   Add lvm_scan, lvm_vg_reduce and lvm_vg_remove_lv to liblvm.
1283   Add functions to get numeric properties to liblvm.
1284   Add lvm_{pv|vg|lv}_get_{name|uuid} to liblvm.
1285   Add lvm_vg_list_pvs and lvm_vg_list_lvs to liblvm.
1286   Add lvm_vg_open and lvm_vg_create_lv_linear to liblvm.
1287   Add lvm_list_vg_names/uuids to liblvm.
1288   Add lvm_errno and lvm_errmsg to liblvm to obtain failure information.
1289   Rename lvm_create/destroy to lvm_init/quit.
1290   Rename lvm_reload_config to lvm_config_reload.
1291   Refactor _override_settings to use new override_config_tree_from_string.
1292   Add vg_reduce to metadata.c and metadata-exported.h.
1293   Update lvm.h to clarify API behavior and return codes.
1294   Update lvm_vg_extend to do an implicit pvcreate on the device.
1295   Update display.c to use vg_free(vg) instead of duplicating the calculation.
1296   Refactor vg_size, vg_free, and pv_mda_count field calculations for liblvm.
1297   Refactor pvcreate and lvcreate for liblvm.
1298   Add global/wait_for_locks to lvm.conf so blocking for locks can be disabled.
1299   All LV locks are non-blocking so remove LCK_NONBLOCK from separate macros.
1300   Fix race condition with vgcreate and vgextend on same device (2.02.49).
1301   Remove redundant validate_name call from vgreduce.
1302   Remove unused handles lvseg, pvseg inside liblvm/lvm.h.
1303   Add liblvm2app Makefile installation targets.
1304   Add liblvm pkgconfig file.
1305   Use newly-independent LVM_LIBAPI in liblvm soname.  E.g. liblvm2app.so.2.1.
1306   Add an API version number, LVM_LIBAPI, to the VERSION string for liblvm.
1307   Pass a pointer to struct cmd_context to init_multiple_segtypes
1308   Return EINVALID_CMD_LINE not success when invalid VG name format is used.
1309   Remove unnecessary messages after vgcreate/vgsplit refactor (2.02.49).
1310   Add log_errno to set a specific errno and replace log_error in due course.
1311   Change create_toolcontext to still return an object if it fails part-way.
1312   Add EUNCLASSIFIED (-1) as the default LVM errno code.
1313   Store any errno and error messages issued while processing each command.
1314   Use log_error macro consistently throughout in place of log_err.
1315
1316 Version 2.02.49 - 15th July 2009
1317 ================================
1318   Add readonly locking type to replace implementation of --ignorelockingfailure.
1319   Exclude VG_GLOBAL from vg_write_lock_held so scans open devs read-only again.
1320   Add unit test case for liblvm VG create/delete APIs.
1321   Add liblvm APIs to implement creation and deletion of VGs.
1322   Initialize cmd->cmd_line to "liblvm" in new liblvm library.
1323   Place handles to liblvm objects for pv, vg, lv, lvseg, pvseg inside lvm.h.
1324   Refactor vgsplit and vgextend to remove READ_REQUIRE_RESIZEABLE flag.
1325   Use _exit() not exit() after forking to avoid flushing libc buffers twice.
1326   Add cast to log_info arg in _find_labeller to avoid Sparc64 warning.
1327   Make cmd->cmd_line const.
1328   Fix dev name mismatch in vgcreate man page example.
1329   Refactor vg_remove_single for use in liblvm.
1330   Make all tools use consistent lock ordering obtaining VG_ORPHAN lock second.
1331   Check md devices for a partition table during device scan.
1332   Add extended device (blkext) and md partition (mdp) types to filters.
1333   Make text metadata read errors for segment areas more precise.
1334   Fix text segment metadata read errors to mention correct segment name.
1335   Include segment and LV names in text segment import error messages.
1336   Add parent node to config_node structure.
1337   Update vgsplit and vgcreate to call new vg_create and 'set' functions.
1338   Change vg_create to take minimal parameters, obtain a lock, and return vg_t.
1339   Refactor vgchange extent_size, max_lv, max_pv, and alloc_policy for liblvm.
1340   Update t-vgcreate-usage.sh to test for default vg properties.
1341   Fix memory leak in vgsplit when re-reading the vg.
1342   Make various exit/cleanup paths more robust after lvm init failures.
1343   Use LCK_NONBLOCK implicitly instead of explicit vg_read() flag.
1344   Remove unnecessary locking and existence tests from new vg_read() interface.
1345   Permit several segment types to be registered by a single shared object.
1346   Update the man pages to document size units uniformly.
1347   Allow commandline sizes to be specified in terms of bytes and sectors.
1348   Update 'md_chunk_alignment' to use stripe-width to align PV data area.
1349   Update test/t-inconsistent-metadata.sh to match new vg_read interface.
1350   Add lvmcache_init() to polldaemon initialization.
1351   Convert tools to use new vg_read / vg_read_for_update.
1352   Fix segfault in vg_release when vg->cmd is NULL.
1353
1354 Version 2.02.48 - 30th June 2009
1355 ================================
1356   Abort if automatic metadata correction fails when reading VG to update it.
1357   Explicitly request fallback to default major number in device mapper.
1358   Ignore suspended devices during repair.
1359   Call vgreduce --removemissing automatically to fix missing PVs in dmeventd.
1360   Suggest using lvchange --resync when adding leg to not-yet-synced mirror.
1361   Destroy toolcontext on clvmd exit to avoid memory pool leaks.
1362   Fix lvconvert not to poll mirror if no conversion in progress.
1363   Fix memory leaks in toolcontext error path.
1364   Reinstate partial activation support in clustered mode. (2.02.40)
1365   Allow metadata correction even when PVs are missing.
1366   Use 'lvm lvresize' instead of 'lvresize' in fsadm.
1367   Do not use '-n' realine option in fsadm for busybox compatiblity.
1368   Add vg_lock_newname() library function for vgrename, vgsplit and vgcreate.
1369   Round up requested readahead to at least one page and print warning.
1370   Try to repair vg before actual vgremove when force flag provided.
1371   Fix possible double release of VG after recovery.
1372   Add parameter to process_each_vg specifying what to do with inconsistent VG.
1373   Unify error messages when processing inconsistent volume group.
1374   Use lvconvert --repair instead of vgreduce in mirror dmeventd DSO.
1375   Introduce lvconvert --use_policies (repair policy according to lvm.conf).
1376   Update clvmd-corosync to match new corosync API.
1377   Fix lib Makefile to include any shared libraries in default target.
1378   Fix rename of active snapshot with virtual origin.
1379   Fix convert polling to ignore LV with different UUID.
1380   Cache underlying device readahead only before activation calls.
1381   Fix segfault when calculating readahead on missing device in vgreduce.
1382   Remove verbose 'visited' messages.
1383   Handle multi-extent mirror log allocation when smallest PV has only 1 extent.
1384   Add LSB standard headers and functions (incl. reload) to clvmd initscript.
1385   When creating new LV, double-check that name is not already in use.
1386   Remove /dev/vgname/lvname symlink automatically if LV is no longer visible.
1387   Rename internal vorigin LV to match visible LV.
1388   Suppress 'removed' messages displayed when internal LVs are removed.
1389   Fix lvchange -a and -p for sparse LVs.
1390   Fix lvcreate --virtualsize to activate the new device immediately.
1391   Make --snapshot optional with lvcreate --virtualsize.
1392   Generalise --virtualoriginsize to --virtualsize.
1393   Skip virtual origins in process_each_lv_in_vg() without --all.
1394   Fix counting of virtual origin LVs in vg_validate.
1395   Attempt to load dm-zero module if zero target needed but not present.
1396
1397 Version 2.02.47 - 22nd May 2009
1398 ===============================
1399   Rename liblvm.so to liblvm2app.so and use configure --enable-applib.
1400   Reinstate version in liblvm2cmd.so soname. (2.02.44)
1401
1402 Version 2.02.46 - 21st May 2009
1403 ===============================
1404   Inherit readahead setting from underlying devices during activation.
1405   Detect LVs active on remote nodes by querying locks if supported.
1406   Enable online resizing of mirrors.
1407   Use suspend with flush when device size was changed during table preload.
1408   Implement query_resource_fn for cluster_locking.
1409   Support query_resource_fn in locking modules.
1410   Introduce CLVMD_CMD_LOCK_QUERY command for clvmd.
1411   Fix pvmove to revert operation if temporary mirror creation fails.
1412   Fix metadata export for VG with missing PVs.
1413   Add vgimportclone and install it and the man page by default.
1414   Force max_lv restriction only for newly created LV.
1415   Remove unneeded import parameter from lv_create_empty.
1416   Merge lv_is_displayable and lv_is_visible functions.
1417   Introduce lv_set_visible & lv_set_hidden functions.
1418   Fix lv_is_visible to handle virtual origin.
1419   Introduce link_lv_to_vg and unlink_lv_from_vg functions.
1420   Remove lv_count from VG and use counter function instead.
1421   Fix snapshot segment import to not use duplicate segments & replace.
1422   Do not query nonexistent devices for readahead.
1423   Remove NON_BLOCKING lock flag from tools and set a policy to auto-set.
1424   Remove snapshot_count from VG and use function instead.
1425   Fix first_seg() call for empty segment list.
1426   Add install_lvm2 makefile target to install only the LVM2 components.
1427   Reject missing PVs from allocation in toollib.
1428   Fix PV datalignment for values starting prior to MDA area. (2.02.45)
1429   Add sparse devices: lvcreate -s --virtualoriginsize (hidden zero origin).
1430   Fix minimum width of devices column in reports.
1431   Add lvs origin_size field.
1432   Fix linux configure --enable-debug to exclude -O2.
1433   Implement lvconvert --repair for repairing partially-failed mirrors.
1434   Fix vgreduce --removemissing failure exit code.
1435   Fix remote metadata backup for clvmd.
1436   Introduce unlock_and_release_vg macro.
1437   Introduce vg_release() to be called to free every struct volume_group.
1438   Alloc PV internal structure from VG mempool if possible.
1439   Fix metadata backup to run after vg_commit always.
1440   Tidy clvmd volume lock cache functions.
1441   Fix pvs report for orphan PVs when segment attributes are requested.
1442   Fix pvs -a output to not read volume groups from non-PV devices.
1443   Add MMC (mmcblk) device type to filters.
1444   Introduce memory pools per volume group (to reduce memory for large VGs).
1445   Use copy of PV structure when manipulating global PV lists.
1446   Always return exit error status when locking of volume group fails.
1447   Fix mirror log convert validation question.
1448   Avoid referencing files from DESTDIR during build process.
1449   Avoid creating some static libraries unless configured --enable-static_link.
1450   Enable use of cached metadata for pvs and pvdisplay commands.
1451   Add missing 'device-mapper' internal subdir build dependency.
1452   Fix memory leak in mirror allocation code.
1453   Save and restore the previous logging level when log level is changed.
1454   Fix error message when archive initialization fails.
1455   Make sure clvmd-corosync releases the lockspace when it exits.
1456   Fix segfault for vgcfgrestore on VG with missing PVs.
1457   Block SIGTERM & SIGINT in clvmd subthreads.
1458   Detect and conditionally wipe swapspace signatures in pvcreate.
1459   Fix maximal volume count check for snapshots if max_lv set for volume group.
1460   Fix lvcreate to remove unused cow volume if the snapshot creation fails.
1461   Fix error messages when PV uuid or pe_start reading fails.
1462   Build new liblvm application-level library.
1463   Rename liblvm.a to liblvm-internal.a.
1464   Flush memory pool and fix locking in clvmd refresh and backup command.
1465   Fix unlocks in clvmd-corosync. (2.02.45)
1466   Fix error message when adding metadata directory to internal list fails.
1467   Fix size and error message of memory allocation at backup initialization.
1468   Remove old metadata backup file after renaming VG.
1469   Restore log_suppress state when metadata backup file is up-to-date.
1470
1471 Version 2.02.45 - 3rd March 2009
1472 ================================
1473   Avoid scanning empty metadata areas for VG names.
1474   Attempt proper clean up in child before executing new binary in exec_cmd().
1475   Do not scan devices if reporting only attributes from PV label.
1476   Use pkgconfig to obtain corosync library details during configuration.
1477   Fix error returns in clvmd-corosync interface to DLM.
1478   Add --refresh to vgchange and vgmknodes man pages.
1479   Pass --test from lvresize to fsadm as --dry-run.
1480   Supply argv[] list to exec_cmd() to allow for variable number of parameters.
1481   Prevent fsadm from checking mounted filesystems.
1482   No longer treats any other key as 'no' when prompting in fsadm.
1483   Tidy fsadm command line processing.
1484   Add lib/lvm.h and lib/lvm_base.c for the new library interface.
1485   Move tools/version.h to lib/misc/lvm-version.h.
1486   Split LVM_VERSION into MAJOR, MINOR, PATCHLEVEL, RELEASE and RELEASE_DATE.
1487   Add system_dir parameter to create_toolcontext().
1488   Add --dataalignment to pvcreate to specify alignment of data area.
1489   Exclude LCK_CACHE locks from _vg_lock_count, fixing interrupt unblocking.
1490   Provide da and mda locations in debug message when writing text format label.
1491   Mention the restriction on file descriptors at invocation on the lvm man page.
1492   Index cached vgmetadata by vgid not vgname to cope with duplicate vgnames.
1493   No longer require kernel and metadata major numbers to match.
1494   Add a fully-functional get_cluster_name() to clvmd corosync interface.
1495   Remove duplicate cpg_initialize from clvmd startup.
1496   Add option to /etc/sysconfig/cluster to select cluster type for clvmd.
1497   Allow clvmd to start up if its lockspace already exists.
1498   Separate PV label attributes which do not need parse metadata when reporting.
1499   Remove external dependency on the 'cut' command from fsadm.
1500   Fix pvs segfault when pv mda attributes requested for not available PV.
1501   Add fsadm support for reszing ext4 filesysystems.
1502   Move locking_type reading inside init_locking().
1503   Rename get_vgs() to get_vgnames() and clarify related error messages.
1504   Allow clvmd to be built with all cluster managers & select one on cmdline.
1505   Mention --with-clvmd=corosync in ./configure.
1506   Replace internal vg_check_status() implementation.
1507   Rename vg_read() to vg_read_internal().
1508
1509 Version 2.02.44 - 26th January 2009
1510 ===================================
1511   Fix --enable-static_link after the recent repository changes.
1512   Add corosync/DLM cluster interface to clvmd.
1513   Add --nameprefixes, --unquoted, --rows to pvs, vgs, lvs man pages.
1514   Fix lvresize size conversion for fsadm when block size is not 1K.
1515   Fix pvs segfault when run with orphan PV and some VG fields.
1516   Display a 'dev_size' of zero for missing devices in reports.
1517   Add pv_mda_size to pvs and vg_mda_size to vgs.
1518   Fix lvmdump /sys listing to include virtual devices directory.
1519   Add "--refresh" functionality to vgchange and vgmknodes.
1520   Avoid exceeding LV size when wiping device.
1521   Calculate mirror log size instead of using 1 extent.
1522   Ensure requested device number is available before activating with it.
1523   Fix incorrect exit status from 'help <command>'.
1524   Fix vgrename using UUID if there are VGs with identical names.
1525   Fix segfault when invalid field given in reporting commands.
1526   Move is_static from cmd to global is_static().
1527   Refactor init_lvm() for lvmcmdline and clvmd.
1528   Add liblvm interactive test infrastructure to build.
1529   Add skeleton lvm2.h file in preparation for a shared library interface.
1530   Use better random seed value in temp file creation.
1531   Add read_urandom to read /dev/urandom. Use in uuid calculation.
1532   Use displayable_lvs_in_vg and lv_is_displayable for consistency throughout.
1533   Fix race in vgcreate that would result in second caller overwriting first.
1534   Fix uninitialised lv_count in vgdisplay -c.
1535   Don't skip updating pvid hash when lvmcache_info struct got swapped.
1536   Add tinfo to termcap search path for pld-linux.
1537   Fix startup race in clvmd.
1538   Generate Red Hat clvmd startup script at config time with correct paths.
1539   Fix clvmd & dmeventd builds after tree restructuring.
1540   Cope with snapshot dependencies when removing a whole VG with lvremove.
1541   Make man pages and tool help text consistent using | for alternative options.
1542
1543 Version 2.02.43 - 10th November 2008
1544 ====================================
1545   Merge device-mapper into the lvm2 tree.
1546   Correct prototype for --permission on lvchange and lvcreate man pages.
1547   Exit with non-zero status from vgdisplay if couldn't show any requested VG.
1548   Move list.c into libdevmapper and rename functions.
1549   Rename a couple of variables that matched function names.
1550   Use simplified x.y.z version number in libdevmapper.pc.
1551   Remove ancient debian directory.
1552   Split out lvm-logging.h from log.h and lvm-globals.[ch] from log.[ch].
1553
1554 Version 2.02.42 - 26th October 2008
1555 ===================================
1556   Accept locking fallback_to_* options in the global section as documented.
1557   Fix temp table activation in mirror conversions not to happen in other cmds.
1558   Fix temp table in mirror conversions to use always-present error not zero.
1559
1560 Version 2.02.41 - 17th October 2008
1561 ===================================
1562   Use temp table to set device size when converting mirrors.
1563   In resume_mirror_images replace activate_lv with resume_lv as workaround.
1564   Avoid overwriting in-use on-disk text metadata by forgetting MDA_HEADER_SIZE.
1565   Fix snapshot monitoring library to not cancel monitoring invalid snapshot.
1566   Generate man pages from templates and include version.
1567   Add usrlibdir and usrsbindir to configure.
1568   Fix conversion of md chunk size into sectors.
1569   Free text metadata buffer after a failure writing it.
1570   Fix misleading error message when there are no allocatable extents in VG.
1571   Fix handling of PVs which reappeared with old metadata version.
1572   Fix mirror DSO to call vgreduce with proper parameters.
1573   Fix validation of --minor and --major in lvcreate to require -My always.
1574   Fix release: clvmd build, vgreduce consolidate & tests, /dev/ioerror warning.
1575
1576 Version 2.02.40 - 19th September 2008
1577 =====================================
1578   Allow lvremove to remove LVs from VGs with missing PVs.
1579   In VG with PVs missing, by default allow activation of LVs that are complete.
1580   Track PARTIAL_LV and MISSING_PV flags internally.
1581   Require --force with --removemissing in vgreduce to remove partial LVs.
1582   No longer write out PARTIAL flag into metadata backups.
1583   Treat new default activation/missing_stripe_filler "error" as an error target.
1584   Remove internal partial_mode.
1585   Add devices/md_chunk_alignment to lvm.conf.
1586   Pass struct physical_volume to pe_align and adjust for md chunk size.
1587   Store sysfs location in struct cmd_context.
1588   Avoid shuffling remaining mirror images when removing one, retaining primary.
1589   Add missing LV error target activation in _remove_mirror_images.
1590   Prevent resizing an LV while lvconvert is using it.
1591   Avoid repeatedly wiping cache while VG_GLOBAL is held in vgscan & pvscan.
1592   Fix pvresize to not allow resize if PV has two metadata areas.
1593   Fix setting of volume limit count if converting to lvm1 format.
1594   Fix vgconvert logical volume id metadata validation.
1595   Fix lvmdump metadata gather option (-m) to work correctly.
1596   Fix allocation bug in text metadata format write error path.
1597   Fix vgcfgbackup to properly check filename if template is used.
1598   configure aborts if lcov or genhtml are missing with --enable-profiling
1599   vgremove tries to remove lv snapshot first.
1600   Added function lv_remove_with_dependencies().
1601   Improve file descriptor leak detection to display likely culprit and filename.
1602   Change clustered mirror kernel module name from cmirror to dm-log-clustered.
1603   Avoid looping forever in _pv_analyze_mda_raw used by pvck.
1604   Change lvchange exit status to indicate if any part of the operation failed.
1605   Fix pvchange and pvremove to handle PVs without mdas.
1606   Refactor _text_pv_read and always return mda list if requested.
1607   Fix configure to work w/o readline unless --enable-readline used. (2.02.39)
1608   Remove is_lvm_partition template which has not yet been coded.
1609   Refactor pvcreate to separate parameter parsing from validation logic.
1610   Check for label_write() failure in _text_pv_write().
1611   Add pvcreate tests and update vgsplit tests to handle lvm1 and lvm2 metadata.
1612   Fix pvchange -M1 -u to preserve existing extent locations when there's a VG.
1613   Cease recognising snapshot-in-use percentages returned by early devt kernels.
1614   Add backward-compatible flags field to on-disk format_text metadata.
1615   Fix dmeventd monitoring libraries to link against liblvm2cmd again. (2.02.39)
1616
1617 Version 2.02.39 - 27th June 2008
1618 ================================
1619   Enable readline by default if available.
1620   Update autoconf to 2008-01-16.
1621   Add $DISTCLEAN_DIRS to make.tmpl.in.
1622   Create coverage reports with --enable-profiling and make lcov or lcov-dated.
1623   Fix up cache for PVs without mdas after consistent VG metadata is processed.
1624   Update validation of safe mirror log type conversions in lvconvert.
1625   Fix lvconvert to disallow snapshot and mirror combinations.
1626   Fix reporting of LV fields alongside unallocated PV segments.
1627   Add --unquoted and --rows to reporting tools.
1628   Add and use uninitialized_var() macro to suppress invalid compiler warnings.
1629   Introduce enum for md minor sb version to suppress compiler warning.
1630   Avoid undefined return value after _memlock manipulation in lvm2_run.
1631   Avoid link failure if configured without --enable-cmdlib or --enable-readline.
1632   Make clvmd return at once if other nodes down in a gulm or openais cluster.
1633   Fix and improve readahead 'auto' calculation for stripe_size.
1634   Fix lvchange output for -r auto setting if auto is already set.
1635   Add test case for readahead.
1636   Avoid ambiguous use of identifier error_message_produced.
1637   Begin syncing configure.in for merge/unification with device-mapper.
1638   Fix add_mirror_images not to dereference uninitialized log_lv upon failure.
1639   Don't call openlog for every debug line output by clvmd.
1640   Add --force to lvextend and lvresize.
1641   Fix vgchange not to activate component mirror volumes directly.
1642   Fix test directory clean up in make distclean.
1643
1644 Version 2.02.38 - 11th June 2008
1645 ================================
1646   Fix tracking of validity of PVs with no mdas in lvmcache.
1647   Fix return values for reporting commands when run with no PVs, LVs, or VGs.
1648   Add omitted unlock_vg() call when sigint_caught() during vg processing.
1649   Fix free_count when reading pool metadata.
1650   Fix segfault when using pvcreate on a device containing pool metadata.
1651   Fix segfault after _free_vginfo by remembering to remove vginfo from list.
1652   Tweak detection of invalid fid after changes to PVs in VG in _vg_read.
1653   Revert assuming precommitted metadata is live when activating (unnecessary).
1654   Drop cached metadata for disappearing VG in vgmerge.
1655   In script-processing mode, stop if any command fails.
1656   Warn if command exits with non-zero status code without a prior log_error.
1657   Check lv_count in vg_validate.
1658   Add --nameprefixes to reporting tools for field name prefix output format.
1659
1660 Version 2.02.37 - 6th June 2008
1661 ===============================
1662   Make clvmd-cman use a hash rather than an array for node updown info.
1663   Correct config file line numbers in messages when parsing comments.
1664   Drop cached metadata when renaming a VG.
1665   Allow for vginfo changing during _vg_read.
1666   Decode numbers in clvmd debugging output.
1667   Add missing deactivation after activation failure in lvcreate -Zy.
1668   When activating, if precommitted metadata is still cached, assume it's live.
1669   When removing LV symlinks, skip any where the VG name is not determined.
1670   Drop metadata cache if update fails in vg_revert or vg_commit.
1671   Avoid spurious duplicate VG messages referring to VGs that are gone.
1672   Drop dev_name_confirmed error message to debug level.
1673   Fix setpriority error message to signed int.
1674   Temporarily disable dmeventd mirror monitoring during lvchange --resync.
1675   Refactor some vginfo manipulation code.
1676   Add assertions to trap deprecated P_ and V_ lock usage.
1677   Add missing mutex around clvmd lvmcache_drop_metadata library call.
1678   Fix uninitialised mutex in clvmd if all daemons are not running at startup.
1679   Avoid using DLM locks with LCK_CACHE type P_ lock requests.
1680   When asked to drop cached committed VG metadata, invalidate cached PV labels.
1681   Drop metadata cache before writing precommitted metadata instead of after.
1682   Don't touch /dev in vgrename if activation is disabled.
1683
1684 Version 2.02.36 - 29th April 2008
1685 =================================
1686   Fix fsadm.sh to work with older blockdev, blkid & readlink binaries.
1687   Fix lvresize to pass new size to fsadm when extending device.
1688   Remove unused struct in clvmd-openais, and use correct node count.
1689   Fix nodes list in clvmd-openais, and allow for broadcast messages.
1690   Exclude VG_GLOBAL from internal concurrent VG lock counter.
1691   Fix vgsplit internal counting of snapshot LVs.
1692   Fix vgmerge snapshot_count when source VG contains snapshots.
1693   Simplify clvmd-openais by using non-async saLckResourceLock.
1694   Fix internal LV counter when a snapshot is removed.
1695   Fix metadata corruption writing lvm1-formatted metadata with snapshots.
1696   Fix lvconvert -m0 allocatable space check.
1697
1698 Version 2.02.35 - 15th April 2008
1699 =================================
1700   Drop cached VG metadata before and after committing changes to it.
1701   Rename P_global to P_#global.
1702   Don't attempt remote metadata backups of non-clustered VGs. (2.02.29)
1703   Don't store fid in VG metadata cache to avoid clvmd segfault. (2.02.34)
1704   Update vgsplit tests to verify loosening of active LV restriction.
1705   Update vgsplit to only restrict split with active LVs involved in split.
1706   Add lv_is_active() to determine whether an lv is active.
1707
1708 Version 2.02.34 - 10th April 2008
1709 =================================
1710   Improve preferred_names lvm.conf example.
1711   Fix vgdisplay 'Cur LV' field to match lvdisplay output.
1712   Fix lv_count report field to exclude hidden LVs.
1713   Add vg_is_clustered() helper function.
1714   Fix vgsplit to only move hidden 'snapshotN' LVs when necessary.
1715   Update vgsplit tests for lvnames on the cmdline.
1716   Update vgsplit man page to reflect lvnames on the cmdline.
1717   Update vgsplit to take "-n LogicalVolumeName" on the cmdline.
1718   Use clustered mirror log with pvmove in clustered VGs, if available.
1719   Fix some pvmove error status codes.
1720   Fix vgsplit error paths to release vg_to lock.
1721   Indicate whether or not VG is clustered in vgcreate log message.
1722   Mention default --clustered setting in vgcreate man page.
1723   Add config file overrides to clvmd when it reads the active LVs list.
1724   Fix vgreduce to use vg_split_mdas to check sufficient mdas remain.
1725   Add (empty) orphan VGs to lvmcache during initialisation.
1726   Fix orphan VG name used for format_pool.
1727   Create a fid for internal orphan VGs.
1728   Update lvmcache VG lock state for all locking types now.
1729   Fix output if overriding command_names on cmdline.
1730   Add detection of clustered mirror log capability.
1731   Add check to vg_commit() ensuring VG lock held before writing new VG metadata.
1732   Add validation of LV name to pvmove -n.
1733   Make clvmd refresh the context correctly when lvm.conf is updated.
1734   Add some basic internal VG lock validation.
1735   Add per-command flags to control which commands use the VG metadata cache.
1736   Fix vgsplit locking of new VG (2.02.30).
1737   Avoid erroneous vgsplit error message for new VG. (2.02.29)
1738   Suppress duplicate message when lvresize fails because of invalid vgname.
1739   Cache VG metadata internally while VG lock is held.
1740   Fix redundant lvresize message if vg doesn't exist.
1741   Fix another allocation bug with clvmd and large node IDs.
1742   Add find_lv_in_lv_list() and find_pv_in_pv_list().
1743   Fix uninitialised variable in clvmd that could cause odd hangs.
1744   Add vgmerge tests.
1745   Add pvseg_is_allocated() for identifying a PV segment allocated to a LV.
1746   Add list_move() for moving elements from one list to another.
1747   Add 'is_reserved_lvname()' for identifying hidden LVs.
1748   Correct command name in lvmdiskscan man page.
1749   clvmd no longer crashes if it sees nodeids over 50.
1750   Fix potential deadlock in clvmd thread handling.
1751   Refactor text format initialisation into _init_text_import.
1752   Escape double quotes and backslashes in external metadata and config data.
1753   Add functions for escaping double quotes in strings.
1754   Rename count_chars_len to count_chars.
1755   Use return_0 in a couple more places.
1756   Correct a function name typo in _line_append error message.
1757   Include limits.h in clvmd so it compiles with newer headers.
1758   Add VirtIO disks (virtblk) to filters.
1759   Fix resetting of MIRROR_IMAGE and VISIBLE_LV after removal of LV. (2.02.30)
1760   Fix remove_layer_from_lv to empty the LV before removing it. (2.02.30)
1761   Add missing no-longer-used segs_using_this_lv test to check_lv_segments.
1762   Remove redundant non-NULL tests before calling free in clvmd.c.
1763   Avoid a compiler warning: make is_orphan's parameter const.
1764   Fix lvconvert detection of mirror conversion in progress. (2.02.30)
1765   Avoid automatic lvconvert polldaemon invocation when -R specified. (2.02.30)
1766   Fix 'pvs -a' to detect VGs of PVs without metadata areas.
1767   Divide up internal orphan volume group by format type.
1768   Update usage message for clvmd.
1769   Fix clvmd man page not to print <br> and clarified debug options.
1770   Fix lvresize to support /dev/mapper prefix in the LV name.
1771   Fix unfilled parameter passed to fsadm from lvresize.
1772   Update fsadm to call lvresize if the partition size differs (with option -l).
1773   Fix fsadm to support VG/LV names.
1774
1775 Version 2.02.33 - 31st January 2008
1776 ===================================
1777   Fix mirror log name construction during lvconvert. (2.02.30)
1778   Make monitor_dev_for_events recurse through the stack of LVs.
1779   Clean up some more compiler warnings.
1780   Some whitespace tidy-ups.
1781   Use stack return macros throughout.
1782   Rely upon internally-cached PV labels while corresponding VG lock is held.
1783
1784 Version 2.02.32 - 29th January 2008
1785 ===================================
1786   Fix two check_lv_segments error messages to show whole segment.
1787   Refactor mirror log attachment code.
1788   Fix internal metadata corruption in lvchange --resync. (2.02.30)
1789   Fix new parameter validation in vgsplit and test mode. (2.02.30)
1790   Remove redundant cnxman-socket.h file from clvmd directory.
1791   Fix pvs, vgs, lvs error exit status on some error paths.
1792
1793 Version 2.02.31 - 19th January 2008
1794 ===================================
1795   Fix lvcreate --nosync not to wait for non-happening sync. (2.02.30)
1796   Add very_verbose lvconvert messages.
1797   Avoid readahead error message with default setting of lvcreate -M1. (2.02.29)
1798
1799 Version 2.02.30 - 17th January 2008
1800 ===================================
1801   Set default readahead to twice maximium stripe size.
1802   Reinstate VG extent size and stripe size defaults (halved). (2.02.29)
1803   Add lists of stacked LV segments using each LV to the internal metadata.
1804   Change vgsplit -l (for unimplemented --list) into --maxlogicalvolumes.
1805   Fix process_all_pvs to detect non-orphans with no MDAs correctly.
1806   Don't use block_on_error with mirror targets version 1.12 and above.
1807   Update vgsplit to accept vgcreate options when new VG is destination.
1808   Update vgsplit to accept existing VG as destination.
1809   lvconvert waits for completion of initial sync by default.
1810   Refactor vgcreate for parameter validation and add tests.
1811   Add new convert_lv field to lvs output.
1812   Print warning when lvm tools are running as non-root.
1813   Add snapshot dmeventd library (enables dmeventd snapshot monitoring).
1814   Prevent pvcreate from overwriting MDA-less PVs belonging to active VGs.
1815   Fix a segfault if using pvs with --all argument. (2.02.29)
1816   Update --uuid argument description in man pages.
1817   Fix vgreduce PV list processing not to process every PV in the VG. (2.02.29)
1818   Extend lvconvert to use polldaemon.
1819   Add support for stacked mirrors.
1820   Major restructuring of pvmove and lvconvert layer manipulation code.
1821   Replace tools/fsadm with scripts/fsadm.sh.
1822   Append fields to report/pvsegs_cols_verbose.
1823   Permit LV segment fields with PV segment reports.
1824   Add seg_start_pe and seg_pe_ranges to reports.
1825
1826 Version 2.02.29 - 5th December 2007
1827 ===================================
1828   Make clvmd backup vg metadata on remote nodes.
1829   Refactor pvmove allocation code.
1830   Decode cluster locking state in log message.
1831   Change file locking state messages from debug to very verbose.
1832   Fix --addtag to drop @ prefix from name.
1833   Stop clvmd going haywire if a pre_function fails.
1834   Convert some vg_reads into vg_lock_and_reads.
1835   Avoid nested vg_reads when processing PVs in VGs and fix associated locking.
1836   Accept sizes with --readahead argument.
1837   Store size arguments as sectors internally.
1838   Attempt to remove incomplete LVs with lvcreate zeroing/activation problems.
1839   Add read_ahead activation code.
1840   Add activation/readahead configuration option and FMT_RESTRICTED_READAHEAD.
1841   Extend readahead arg to accept "auto" and "none".
1842   Add lv_read_ahead and lv_kernel_read_ahead fields to reports and lvdisplay.
1843   Prevent lvconvert -s from using same LV as origin and snapshot.
1844   Fix human-readable output of odd numbers of sectors.
1845   Add pv_mda_free and vg_mda_free fields to reports for raw text format.
1846   Add LVM2 version to 'Generated by' comment in metadata.
1847   Show 'not usable' space when PV is too large for device in pvdisplay.
1848   Ignore and fix up any excessive device size found in metadata.
1849   Fix error message when fixing up PV size in lvm2 metadata (2.02.11).
1850   Fix orphan-related locking in pvdisplay and pvs.
1851   Fix missing VG unlocks in some pvchange error paths.
1852   Add some missing validation of VG names.
1853   Rename validate_vg_name() to validate_new_vg_name().
1854   Change orphan lock to VG_ORPHANS.
1855   Change format1 to use ORPHAN as orphan VG name.
1856   Convert pvchange, pvdisplay, pvscan to use is_orphan()
1857   Add is_orphan_vg() and change all hard-coded checks to use it.
1858   Detect md superblocks version 1.0, 1.1 and 1.2.
1859   Add _alloc_pv() and _free_pv() from _pv_create() code and fix error paths.
1860   Add pv_dev_name() to access PV device name.
1861   Add const attributes to pv accessor functions.
1862   Refactor vg_add_snapshot() and lv_create_empty().
1863   Handle new sysfs subsystem/block/devices directory structure.
1864   Run test with LVM_SYSTEM_DIR pointing to private root and /dev dirs.
1865   Fix a bug in lvm_dump.sh checks for lvm/dmsetup binaries.
1866   Fix underquotations in lvm_dump.sh.
1867   Refactor lvcreate stripe and mirror parameter validation.
1868   Print --help output to stdout, not stderr.
1869   After a cmdline processing error, don't print help text but suggest --help.
1870   Add %PVS extents option to lvresize, lvextend, and lvcreate.
1871   Add 'make check' to run tests in new subdirectory 'test'.
1872   Moved the obsolete test subdirectory to old-tests.
1873   Cope with relative paths in configure --with-dmdir.
1874   Remove no-longer-correct restrictions on PV arg count with stripes/mirrors.
1875   Fix strdup memory leak in str_list_dup().
1876   Link with -lpthread when static SELinux libraries require that.
1877   Detect command line PE values that exceed their 32-bit range.
1878   Include strerror string in dev_open_flags' stat failure message.
1879   Move guts of pvresize into library.
1880   Avoid error when --corelog is provided without --mirrorlog. (2.02.28)
1881   Correct --mirrorlog argument name in man pages (not --log).
1882   Clear MIRROR_NOTSYNCED LV flag when converting from mirror to linear.
1883   Modify lvremove to prompt for removal if LV active on other cluster nodes.
1884   Add '-f' to vgremove to force removal of VG even if LVs exist.
1885
1886 Version 2.02.28 - 24th August 2007
1887 ==================================
1888   Fix clvmd logging so you can get lvm-level debugging out of it.
1889   Introduce VG_GLOBAL lock type for vgscan/pvscan to trigger clvmd -R.
1890   Change locking_flags from int to uint32_t.
1891   Fix clvmd -R, so it fully refreshes the caches.
1892   Change lvconvert_mirrors to use mirror segtype not striped.
1893   Fix lvconvert_mirrors detection of number of existing mirrors.
1894   Clean up numerous compiler warnings that appeared in recent releases.
1895   Remove several unused parameters from _allocate().
1896   Only permit --force, --verbose and --debug arguments to be repeated.
1897   Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1.
1898   Move guts of vgremove and lvremove into library, including yes_no_prompt.
1899   Allow clvmd debug to be turned on in a running daemon using clvmd -d [-C].
1900   Update to use autoconf 2.61, while still supporting 2.57.
1901   Add more cluster info to lvmdump.
1902   Add further const attributes throughout.
1903   Add support for renaming mirrored LVs.
1904   Factor out core of lvrename() to library function.
1905   Add --mirrorlog argument to specify log type for mirrors.
1906   Don't attempt to monitor devices if their creation failed in _lv_activate.
1907   Don't leak a file descriptor in fcntl_lock_file() when fcntl fails.
1908   Replace create_dir with dm_create_dir.
1909   Detect stream write failure reliably with lvm_fclose using dm_fclose.
1910   Fix clvmd if compiled with gulm support. (2.02.26)
1911   Fix lvdisplay man page to say LV size is reported in sectors, not KB.
1912   Add vg_lock_and_read() external library function.
1913   Fix loading of persistent cache if cache_dir is used. (2.02.23)
1914   Reduce _compare_paths lstat error message from log_error to log_very_verbose.
1915   Create util.h with last_path_component replacing strdup + basename.
1916   Use gcc's printf attribute wherever possible.
1917   In _line_append, use "sizeof buf - 1" rather than equivalent "4095".
1918   Introduce is_same_inode macro, now including a comparison of st_dev.
1919   Don't leak a file descriptor in _lock_file() when flock fails.
1920   Add SUN's LDOM virtual block device (vdisk) and ps3disk to filters.
1921   Split metadata-external.h out from metadata.h for the tools to use.
1922
1923 Version 2.02.27 - 17th July 2007
1924 ================================
1925   Fix snapshot cow area deactivation if origin is not active. (2.02.13)
1926   Fix configure libdevmapper.h check when --with-dmdir is used.
1927   Turn _add_pv_to_vg() into external library function add_pv_to_vg().
1928   Add pv_by_path() external library function.
1929   Tidy clvmd-openais of redundant bits, and improve an error report.
1930   Cope with find_seg_by_le() failure in check_lv_segments().
1931   Call dev_iter_destroy() if _process_all_devs() is interrupted by sigint.
1932   Add vg_mda_count and pv_mda_count columns to reports.
1933   Fix dumpconfig to use log_print instead of stdout directly.
1934   Remove unused parameter 'fid' from _add_pv_to_vg.
1935   Add kernel and device-mapper targets versions to lvmdump.
1936   Replace BSD (r)index with C89 str(r)chr.
1937   Handle vgsplit of an entire VG as a vgrename.
1938   Reinitialise internal lvmdiskscan variables when called repeatedly.
1939   Fix missing lvm_shell symbol in lvm2cmd library. (2.02.23)
1940   Add vg_status function and clean up vg->status in tools directory.
1941   Add --ignoremonitoring to disable all dmeventd interaction.
1942   Remove get_ prefix from get_pv_* functions.
1943   clvmd-openais now uses cpg_local_get() to get nodeid, rather than Clm.
1944   Print warnings to stderr instead of stdout.
1945
1946 Version 2.02.26 - 15th June 2007
1947 ================================
1948   Update vgcfgrestore man page.
1949   Allow keyboard interrupt during user prompts when appropriate.
1950   Remove unused clvmd system-lv code.
1951   Replace many physical_volume struct dereferences with new get_pv_* functions.
1952   Suppress a benign compile-time warning.
1953   Convert find_pv_in_vg_by_uuid and pv_create to use PV handles.
1954   Add wrappers to some functions in preparation for external LVM library.
1955   Add -f to vgcfgrestore to list metadata backup files.
1956   Add vg_check_status to consolidate vg status checks and error messages.
1957   Add pvdisplay --maps implementation.
1958   Remove unsupported LVM1 options from vgcfgrestore man page.
1959   Update vgcfgrestore man page to show mandatory VG name.
1960   Update vgrename man page to include UUID and be consistent with lvrename.
1961   Add (experimental) OpenAIS support to clvmd.
1962   Fix deactivation code to follow dependencies and remove symlinks.
1963   Fix and clarify vgsplit error messages.
1964   Fix a segfault in device_is_usable() if a device has no table.
1965   Add some more debug messages to clvmd startup.
1966   Misc clvmd cleanups.
1967
1968 Version 2.02.25 - 27th April 2007
1969 =================================
1970   Fix get_config_uint64() to read a 64-bit value not a 32-bit one.
1971   Add -Wformat-security and change one fprintf() to fputs().
1972   Move regex functions into libdevmapper.
1973   Change some #include lines to search only standard system directories.
1974   Add devices/preferred_names config regex list for displayed device names.
1975   Free a temporary dir string in fcntl_lock_file() after use.
1976   Fix a dm_pool_destroy() in matcher_create().
1977   Introduce goto_bad macro.
1978   Fix warnings on x86_64 involving ptrdiff_t in log_error messages.
1979   Update pvck to include text metadata area and record detection.
1980   Add support functions for token counting in config file extracts.
1981   Update pvck to read labels on disk, with --labelsector parameter.
1982   Add count_chars and count_chars_len functions.
1983   Add /sys/block listings to lvm_dump.sh.
1984   Make lvm_dump.sh list /dev recursively.
1985   Fix thread race in clvmd.
1986   Add scan_sector param to label_read and _find_labeller.
1987   Make clvmd cope with quorum devices.
1988   Add extra internal error checking to clvmd.
1989   Add dev_read_circular.
1990   Add pvck command stub.
1991   Update lists of attribute characters in man pages.
1992   Change cling alloc policy attribute character from 'C' to l'.
1993   Fix creation and conversion of mirrors with tags.
1994   Fix vgsplit for lvm1 format (set and validate VG name in PVs metadata).
1995   Split metadata areas in vgsplit properly.
1996
1997 Version 2.02.24 - 19th March 2007
1998 =================================
1999   Fix processing of exit status in init scripts
2000   Fix vgremove to require at least one vg argument.
2001   Fix reading of striped LVs in LVM1 format.
2002   Flag nolocking as clustered so clvmd startup sees clustered LVs. (2.02.10)
2003   Add a few missing pieces of vgname command line validation.
2004   Support the /dev/mapper prefix on most command lines.
2005
2006 Version 2.02.23 - 8th March 2007
2007 ================================
2008   Fix vgrename active LV check to ignore differing vgids.
2009   Remove no-longer-used uuid_out parameter from activation info functions.
2010   Fix two more segfaults if an empty config file section encountered.
2011   Move .cache file into a new /etc/lvm/cache directory by default.
2012   Add devices/cache_dir & devices/cache_file_prefix, deprecating devices/cache.
2013   Create directory in fcntl_lock_file() if required.
2014   Exclude readline support from lvm.static.
2015   Fix a leak in a reporting error path (2.02.19).
2016
2017 Version 2.02.22 - 13th February 2007
2018 ====================================
2019   Correct -b and -P on a couple of man pages.
2020   Add global/units to example.conf.
2021   Fix loading of segment_libraries.
2022   If a PV reappears after it was removed from its VG, make it an orphan.
2023   Don't update metadata automatically if VGIDs don't match.
2024   Fix some vgreduce --removemissing command line validation.
2025
2026 Version 2.02.21 - 30th January 2007
2027 ===================================
2028   Add warning to lvm2_monitoring_init_rhel4 if attempting to stop monitoring.
2029   Fix vgsplit to handle mirrors.
2030   Reorder fields in reporting field definitions.
2031   Fix vgs to treat args as VGs even when PV fields are displayed.
2032   Fix md signature check to handle both endiannesses.
2033
2034 Version 2.02.20 - 25th January 2007
2035 ===================================
2036   dmeventd mirror sets ignore_suspended_devices and avoids scanning mirrors.
2037   Add devices/ignore_suspended_devices to ignore suspended dm devices.
2038   Add some missing close() and fclose() return code checks.
2039   Fix exit statuses of reporting tools (2.02.19).
2040   Add init script for dmeventd monitoring.
2041   lvm.static no longer interacts with dmeventd unless explicitly asked to.
2042   Add field definitions to report help text.
2043   Remove unnecessary cmd arg from target_*monitor_events().
2044   Add private variable to dmeventd shared library interface.
2045   Long-lived processes write out persistent dev cache in refresh_toolcontext().
2046   Fix refresh_toolcontext() always to wipe persistent device filter cache.
2047   Add is_long_lived to toolcontext.
2048   Add --clustered to man pages.
2049   Streamline dm_report_field_* interface.
2050   Change remaining dmeventd terminology 'register' to 'monitor'.
2051   Update reporting man pages.
2052   No longer necessary to specify alignment type for report fields.
2053
2054 Version 2.02.19 - 17th January 2007
2055 ===================================
2056   Fix a segfault if an empty config file section encountered.
2057   Move basic reporting functions into libdevmapper.
2058   Fix partition table processing after sparc changes (2.02.16).
2059   Fix cmdline PE range processing segfault (2.02.13).
2060   Some libdevmapper-event interface changes.
2061   Report dmeventd mirror monitoring status.
2062   Fix dmeventd mirror status line processing.
2063
2064 Version 2.02.18 - 11th January 2007
2065 ===================================
2066   Revised libdevmapper-event interface for dmeventd.
2067   Remove dmeventd mirror status line word limit.
2068   Use CFLAGS when linking so mixed sparc builds can supply -m64.
2069   Prevent permission changes on active mirrors.
2070   Print warning instead of error message if lvconvert cannot zero volume.
2071   Add snapshot options to lvconvert man page.
2072   dumpconfig accepts a list of configuration variables to display.
2073   Change dumpconfig to use --file to redirect output to a file.
2074   Avoid vgreduce error when mirror code removes the log LV.
2075   Remove 3 redundant AC_MSG_RESULTs from configure.in.
2076   Free memory in _raw_read_mda_header() error paths.
2077   Fix ambiguous vgsplit error message for split LV.
2078   Fix lvextend man page typo.
2079   Add configure --with-dmdir to compile against a device-mapper source tree.
2080   Use no flush suspending for mirrors.
2081   Add dmeventd_mirror register_mutex, tidy initialisation & add memlock.
2082   Fix create mirror with name longer than 22 chars.
2083   Fix some activate.c prototypes when compiled without devmapper.
2084   Fix dmeventd mirror to cope if monitored device disappears.
2085
2086 Version 2.02.17 - 14th December 2006
2087 ====================================
2088   Add missing pvremove error message when device doesn't exist.
2089   When lvconvert allocates a mirror log, respect parallel area constraints.
2090   Use loop to iterate through the now-ordered policy list in _allocate().
2091   Check for failure to allocate just the mirror log.
2092   Introduce calc_area_multiple().
2093   Support mirror log allocation when there is only one PV: area_count now 0.
2094   Fix detection of smallest area in _alloc_parallel_area() for cling policy.
2095   Add manpage entry for clvmd -T
2096   Fix gulm operation of clvmd, including a hang when doing lvchange -aey
2097   Fix hang in clvmd if a pre-command failed.
2098
2099 Version 2.02.16 - 1st December 2006
2100 ===================================
2101   Fix VG clustered read locks to use PR not CR.
2102   Adjust some alignments for ia64/sparc.
2103   Fix mirror segment removal to use temporary error segment.
2104   Always compile debug logging into clvmd.
2105   Add startup timeout to RHEL4 clvmd startup script.
2106   Add -T (startup timeout) switch to clvmd.
2107   Improve lvm_dump.sh robustness.
2108   Update lvm2create_initrd to support gentoo.
2109
2110 Version 2.02.15 - 21st November 2006
2111 ====================================
2112   Fix clvmd_init_rhel4 line truncation (2.02.14).
2113   Install lvmdump by default.
2114   Fix check for snapshot module when activating snapshot.
2115   Fix pvremove error path for case when PV is in use.
2116   Warn if certain duplicate config file entries are seen.
2117   Enhance lvm_dump.sh for sysreport integration and add man page.
2118   Fix --autobackup argument which could never disable backups.
2119   Fix a label_verify error path.
2120
2121 Version 2.02.14 - 10th November 2006
2122 ====================================
2123   Fix adjusted_mirror_region_size() to handle 64-bit size.
2124   Add some missing bounds checks on 32-bit extent counters.
2125   Add Petabyte and Exabyte support.
2126   Fix lvcreate error message when 0 extents requested.
2127   lvremove man page: volumes must be cluster inactive before being removed.
2128   Protect .cache manipulations with fcntl locking.
2129   Change .cache timestamp comparisons to use ctime.
2130   Fix mirror log LV writing to set all bits in whole LV.
2131   Fix clustered VG detection and default runlevels in clvmd_init_rhel4.
2132   Fix high-level free space check for partial allocations.
2133
2134 Version 2.02.13 - 27th October 2006
2135 ===================================
2136   Add couple of missing files to tools/Makefile CLEAN_TARGETS.
2137   When adding snapshot leave cow LV mapped device active after zeroing.
2138   Fix a clvmd debug message.
2139   Add dev_flush() to set_lv().
2140   Add lvchange --resync.
2141   Perform high-level free space check before each allocation attempt.
2142   Don't allow a node to remove an LV that's exclusively active on anther node.
2143   Cope if same PV is included more than once in cmdline PE range list.
2144   Set PV size to current device size if it is found to be zero.
2145   Add segment parameter to target_present functions.
2146
2147 Version 2.02.12 - 16th October 2006
2148 ===================================
2149   Fix pvdisplay to use vg_read() for non-orphans.
2150   Fall back to internal locking if external locking lib is missing or fails.
2151   Retain activation state after changing LV minor number with --force.
2152   Propagate clustered flag in vgsplit and require resizeable flag.
2153
2154 Version 2.02.11 - 12th October 2006
2155 ===================================
2156   Add clvmd function to return the cluster name. not used by LVM yet.
2157   Add cling allocation policy.
2158   Change _check_contiguous() to use _for_each_pv().
2159   Extend _for_each_pv() to allow termination without error.
2160   Abstract _is_contiguous().
2161   Remove duplicated pv arg from _check_contiguous().
2162   Accept regionsize with lvconvert.
2163   Add report columns with underscore before field names ending 'size'.
2164   Correct regionsize default on lvcreate man page (MB).
2165   Fix clvmd bug that could cause it to die when a node with a long name crashed.
2166   Add device size to text metadata.
2167   Fix format_text mda_setup pv->size and pv_setup pe_count calculations.
2168   Fix _for_each_pv() for mirror with core log.
2169   Add lvm_dump.sh script to create a tarball of debugging info from a system.
2170   Capture error messages in clvmd and pass them back to the user.
2171   Remove unused #defines from filter-md.c.
2172   Make clvmd restart init script wait until clvmd has died before starting it.
2173   Add -R to clvmd which tells running clvmds to reload their device cache.
2174   Add LV column to reports listing kernel modules needed for activation.
2175   Show available fields if report given invalid field. (e.g. lvs -o list)
2176   Add timestamp functions with --disable-realtime configure option.
2177   Add %VG, %LV and %FREE suffices to lvcreate/lvresize --extents arg.
2178   Fix two potential NULL pointer derefs in error cases in vg_read().
2179   Separate --enable-cluster from locking lib options in lvmconf.sh.
2180   Add a missing comma in lvcreate man page.
2181
2182 Version 2.02.10 - 19th September 2006
2183 =====================================
2184   Fix lvconvert mirror change case detection logic.
2185   Fix mirror log detachment so it correctly becomes a standalone LV.
2186   Extend _check_contiguous() to detect single-area LVs.
2187   Include mirror log (untested) in _for_each_pv() processing.
2188   Use MIRROR_LOG_SIZE constant.
2189   Remove struct seg_pvs from _for_each_pv() to generalise.
2190   Avoid adding duplicates to list of parallel PVs to avoid.
2191   Fix several incorrect comparisons in parallel area avoidance code.
2192   Fix segment lengths when flattening existing parallel areas.
2193   Log existing parallel areas prior to allocation.
2194   Fix mirror log creation when activation disabled.
2195   Don't attempt automatic recovery without proper locking.
2196   When using local file locking, skip clustered VGs.
2197   Add fallback_to_clustered_locking and fallback_to_local_locking parameters.
2198   lvm.static uses built-in cluster locking instead of external locking.
2199   Don't attempt to load shared libraries if built statically.
2200   Change default locking_lib to liblvm2clusterlock.so.
2201   Add skip_dev_dir() to process command line VGs.
2202   Stop clvmd complaining about nodes that have left the cluster.
2203   Move lvm_snprintf(), split_words() and split_dm_name() into libdevmapper.
2204   Add lvconvert man page.
2205   Add mirror options to man pages.
2206   Prevent mirror renames.
2207   Move CMDLIB code into separate file and record whether static build.
2208
2209 Version 2.02.09 - 17th August 2006
2210 ==================================
2211   Fix PE_ALIGN for pagesize over 32KB.
2212   Separate out LVM1_PE_ALIGN and pe_align().
2213   Add lvm_getpagesize wrapper.
2214   Add --maxphysicalvolumes to vgchange.
2215
2216 Version 2.02.08 - 15th August 2006
2217 ==================================
2218   Add checks for duplicate LV name, lvid and PV id before writing metadata.
2219   Report all sanity check failures, not just the first.
2220   Fix missing lockfs on first snapshot creation.
2221   Add unreliable --trustcache option to reporting commands.
2222   Fix locking for mimage removal.
2223   Fix clvmd_init_rhel4 'status' exit code.
2224
2225 Version 2.02.07 - 17th July 2006
2226 ================================
2227   Fix activation logic in lvchange --persistent.
2228   Don't ignore persistent minor numbers when activating.
2229   Use RTLD_GLOBAL when loading shared libraries.
2230   Add some forgotten memlock checks to _vg_read to protect against full scans.
2231   Add mutex to dmeventd_mirror to avoid concurrent execution.
2232   Fix vgreduce --removemissing to return success if VG is already consistent.
2233   Fix return code if VG specified on command line is not found.
2234   Fix PV tools to include orphaned PVs in default output again.
2235   Fixed unaligned access when using clvm.
2236   Fix an extra dev_close in a label_read error path.
2237   Append patches to commit emails.
2238   Fix target_register_events args.
2239   Prevent snapshots of mirrors.
2240   Add DISTCLEAN_TARGETS to make template for configure.h.
2241   More fixes to error paths.
2242   Fix lvcreate corelog validation.
2243   Add --config for overriding most config file settings from cmdline.
2244   Quote arguments when printing command line.
2245   Remove linefeed from 'initialising logging' message.
2246   Add 'Completed' debug message.
2247   Don't attempt library exit after reloading config files.
2248   Always compile with libdevmapper, even if device-mapper is disabled.
2249
2250 Version 2.02.06 - 12th May 2006
2251 ===============================
2252   Propagate --monitor around cluster.
2253   Add --monitor to vgcreate and lvcreate to control dmeventd registration.
2254   Filter LCK_NONBLOCK in clvmd lock_vg.
2255   Add --nosync to lvcreate with LV flag NOTSYNCED.
2256   Use mirror's uuid for a core log.
2257   Add mirror log fault-handling policy.
2258   Improve mirror warning messages and tidy dmeventd syslog output.
2259   Propagate nosync flag around cluster.
2260   Allow vgreduce to handle mirror log failures.
2261   Add --corelog to lvcreate and lvconvert.
2262   Create a log header for replacement in-sync mirror log.
2263   Use set_lv() and dev_set() to wipe sections of devices.
2264   Add mirror_in_sync() flag to avoid unnecessary resync on activation.
2265   Add mirror_library description to example.conf.
2266   Fix uuid_from_num() buffer overrun.
2267   Make SIZE_SHORT the default for display_size().
2268   Fix some memory leaks in error paths found by coverity.
2269   Use C99 struct initialisers.
2270   Move DEFS into configure.h.
2271   Clean-ups to remove miscellaneous compiler warnings.
2272   Improve stripe size validation.
2273   Increase maximum stripe size limit to physical extent size for lvm2 metadata.
2274   Fix activation code to check for pre-existing mirror logs.
2275   Tighten region size validation.
2276   Ignore empty strings in config files.
2277   Require non-zero regionsize and document parameter on lvcreate man page.
2278   Invalidate cache if composition of VG changed externally.
2279
2280 Version 2.02.05 - 21st April 2006
2281 =================================
2282   Fix vgid string termination in recent cache code.
2283
2284 Version 2.02.04 - 19th April 2006
2285 =================================
2286   Check for libsepol.
2287   Add some cflow & scope support.
2288   Separate out DEFS from CFLAGS.
2289   Remove inlines and use unique function names.
2290
2291 Version 2.02.03 - 14th April 2006
2292 =================================
2293   vgrename accepts vgid and exported VG.
2294   Add --partial to pvs.
2295   When choosing between identically-named VGs, also consider creation_host.
2296   Provide total log suppression with 2.
2297   Fix vgexport/vgimport to set/reset PV exported flag so pv_attr is correct.
2298   Add vgid to struct physical_volume and pass with vg_name to some functions.
2299   If two or more VGs are found with the same name, use one that is not exported.
2300   Whenever vgname is captured, also capture vgid and whether exported.
2301   Remove an incorrect unlock_vg() from process_each_lv().
2302   Update extent size information in vgchange and vgcreate man pages.
2303   Introduce origin_from_cow() and lv_is_visible().
2304   pvremove without -f now fails if there's no PV label.
2305   Support lvconvert -s.
2306   Suppress locking library load failure message if --ignorelockingfailure.
2307   Propagate partial mode around cluster.
2308   Fix archive file expiration.
2309   Fix dmeventd build.
2310   clvmd now uses libcman rather than cman ioctls.
2311   clvmd will allow new cman to shutdown on request.
2312
2313 Version 2.02.02 - 7th February 2006
2314 ===================================
2315   Add %.so: %.a make template rule.
2316   Switchover library building to use LIB_SUFFIX.
2317   Only do lockfs filesystem sync when suspending snapshots.
2318   Always print warning if activation is disabled.
2319   vgreduce removes mirror images.
2320   Add --mirrorsonly to vgreduce.
2321   vgreduce replaces active LVs with error segment before removing them.
2322   Set block_on_error parameter if available.
2323   Add target_version.
2324   Add details to format1 'Invalid LV in extent map' error message.
2325   Fix lvscan snapshot full display.
2326   Bring lvdisplay man page example into line.
2327   Add mirror dmeventd library.
2328   Add some activation logic to remove_mirror_images().
2329   lvconvert can remove specified PVs from a mirror.
2330   lvconvert turns an existing LV into a mirror.
2331   Allow signed mirrors arguments.
2332   Move create_mirror_log() into toollib.
2333   Determine parallel PVs to avoid with ALLOC_NORMAL allocation.
2334   Fix lv_empty.
2335
2336 Version 2.02.01 - 23rd November 2005
2337 ====================================
2338   Fix lvdisplay cmdline to accept snapshots.
2339   Fix open RO->RW promotion.
2340   Fix missing vg_revert in lvcreate error path.
2341
2342 Version 2.02.00 - 10th November 2005
2343 ====================================
2344   Extend allocation areas to avoid overflow with contiguous with other PVs.
2345   Stop lvcreate attempting to wipe zero or error segments.
2346   Added new lvs table attributes.
2347   Separated out activation preload.
2348   Moved activation functions into libdevmapper.
2349   Fixed build_dm_name.
2350   Add return macros.
2351   Added xen xvd devices.
2352   Clear up precommitted metadata better.
2353   A pvresize implementation.
2354   Fix contiguous allocation when there are no preceding segments.
2355   Add mirror_seg pointer to lv_segment struct.
2356   Only keep a device open if it's known to belong to a locked VG.
2357   Fix lvdisplay to show all mirror destinations.
2358   Replacement suspend code using libdevmapper dependency tree.
2359   Add DEFS to make.tmpl.
2360   Use dm_is_dm_major instead of local copy.
2361   Allow mapped devices to be used as PVs.
2362   Move set_selinux_context into libdevmapper.
2363   Fix automatic text metadata buffer expansion (using macro).
2364   Cache formatted text metadata buffer between metadata area writes.
2365   Add pe_start field to pvs.
2366   Add 'LVM-' prefix to uuids.
2367   Split lv_segment_area from lv_segment to permit extension.
2368   Replacement deactivation code using libdevmapper dependency tree.
2369   Simplify dev_manager_info().
2370   Attempt to load missing targets using modprobe.
2371   Add -a to lvscan.
2372   Move mknodes into libdevmapper.
2373   Move bitset, hash, pool and dbg_malloc into libdevmapper.
2374
2375 Version 2.01.15 - 16th October 2005
2376 ===================================
2377   Refuse to run pvcreate/pvremove on devices we can't open exclusively.
2378   Use ORPHAN lock definition throughout.
2379   Validate chunksize in lvcreate.
2380   Reduce chunksize limit to 512k.
2381   Fix chunksize field in reports.
2382   Don't hide snapshots from default 'lvs' output.
2383   Add is_dm_major() for use in duplicate device detection in lvmcache_add().
2384   Really switch device number in lvmcache when it says it is doing so.
2385   Option for bitset memory allocation using malloc as well as pool.
2386   Don't assume exactly two mirrors when parsing mirror status.
2387   Suppress fsync() error message on filesystems that don't support it.
2388   Fix yes_no_prompt() error handling.
2389   Add lvm.conf comment warning against multiple filter lines.
2390   Tidy lvmconf.sh.
2391   Add format1 dev_write debug messages.
2392   Add clustered VG attribute to report.
2393   Move lvconvert parameters into struct lvconvert_params.
2394   Add clustered VG flag to LV lock requests.
2395   Change LV locking macros to take lv instead of lvid.
2396   Prepend 'cluster' activation parameter to mirror log when appropriate.
2397   Pass exclusive flag to lv_activate and on to target activation code.
2398   Prevent snapshot creation in a clustered VG for now.
2399   Factor out adjusted_mirror_region_size() and generate_log_name_format().
2400   Move compose_log_line() into mirror directory.
2401   Factor out _get_library_path().
2402   Don't kill idling clvmd threads.
2403   clvmd no longer takes out locks for non-clustered LVs.
2404   Recognise ATA over Ethernet (aoe) devices.
2405
2406 Version 2.01.14 - 4th August 2005
2407 =================================
2408   Fix lvconvert PV parameter in help string.
2409   Prevent snapshots getting activated in a clustered VG.
2410   Separate out _build_dev_string.
2411   Move zero_lv to toollib.
2412   Fix pool format handler to work with pv segment code.
2413
2414 Version 2.01.13 - 13th July 2005
2415 ================================
2416   Fix pvmove segment splitting.
2417   Abstract vg_validate.
2418   Only make one attempt at contiguous allocation.
2419   Fix lvm1 format metadata read.
2420   Fix lvm1 format non-mirror lvcreate.
2421
2422 Version 2.01.12 - 14th June 2005
2423 ================================
2424   Various allocation-related pvmove fixes.
2425   Log an error if clvmd can't resolve a host name got from CCS.
2426   Fix potential spin loop in clvmd.
2427
2428 Version 2.01.11 - 13th June 2005
2429 ================================
2430   Added lvmconf.sh.
2431   Use matchpathcon mode parameter.
2432   Don't defer closing dead FDs in clvmd.
2433   Remove hard-coded 64k text metadata writing restriction.
2434   Make VG name restrictions consistent.
2435   Introduce lvconvert.  So far only removes mirror images.
2436   Allow mirror images to be resized.
2437   Allow mirror images to have more than one segment.
2438   Centralise restrictions on LV names.
2439   Always insert an intermediate layer for mirrors.
2440   Suppress hidden LVs from reports unless --all is given.
2441   Use square brackets for hidden LVs in reports.
2442   Allow the creation of mirrors with contiguous extents.
2443   Always perform sanity checks against metadata before committing it to disk.
2444   Split lv_extend into two steps: choosing extents + allocation to LV(s).
2445   Add mirror log region size to metadata.
2446   Use list_iterate_items throughout and add list*back macros.
2447   Introduce seg_ macros to access areas.
2448   Add segtype_is_ macros.
2449   Support tiny metadata areas for pool conversions.
2450   Mirror activation handles disk log as well as core.
2451   Activation code recognises mirror log dependency.
2452   Add mirror_log and regionsize fields to report.
2453   Fix non-orphan pvchange -u.
2454   Fix vgmerge to handle duplicate LVIDs.
2455   Move archiver code from tools into library.
2456   vgscan/change/display/vgs automatically create metadata backups if needed.
2457   Merge cloned allocation functions.
2458   Fix contiguous allocation policy with linear.
2459   Cope with missing format1 PVs again.
2460   Remove lists of free PV segments.
2461   Simplify pv_maps code and remove slow bitset algorithm.
2462   Red-Hat-ify the clvmd rhel4 initscript.
2463   %Zu->%zu
2464   Fix loopfiles alias alloc & mem debugging.
2465   Un-inline dbg_strdup.
2466   lv_reduce tidying.
2467   Remove some unnecessary parameters.
2468   Introduce seg_is macros.
2469
2470 Version 2.01.10 - 3rd May 2005
2471 ==============================
2472   Don't create backup and archive dirs till needed.
2473   Reinstate full PV size when removing from VG.
2474   Support loopfiles for testing.
2475   Tidy lv_segment interface.
2476   pv_segment support.
2477   vgchange --physicalextentsize
2478   Internal snapshot restructuring.
2479   Remove unused internal non-persistent snapshot option.
2480   Allow offline extension of snapshot volumes.
2481   Move from 2-step to 3-step on-disk metadata commit.
2482   Scan ramdisks too and allow non-O_DIRECT fallback.
2483   Annotate, tidy and extend list.h.
2484   Alignment tidying.
2485   Make clvmd work around some "bugs" in gulm's node state notifications.
2486   Tidy clvmd's SIGHUP handler
2487
2488 Version 2.01.09 - 4th April 2005
2489 ================================
2490   Add --ignorelockingfailure to vgmknodes.
2491   clvmd: Don't allow user operations to start until the lvm thread is fully up.
2492   clvmd-gulm: set KEEPALIVE on sockets.
2493
2494 Version 2.01.08 - 22nd March 2005
2495 =================================
2496   Add clustered attribute so vgchange can identify clustered VGs w/o locking.
2497   Improve detection of external changes affecting internal cache.
2498   Add 'already in device cache' debug message.
2499   Add -a to pvdisplay -C.
2500   Avoid rmdir opendir error messsages when dir was already removed.
2501   Tighten signal handlers.
2502   Avoid some compiler warnings.
2503   Additional rename failure error message.
2504   read/write may be macros.
2505   clvmd: don't take out lvm thread lock at startup, it only protects jobs list.
2506
2507 Version 2.01.07 - 8th March 2005
2508 ================================
2509   Cope with new devices appearing by rescanning /dev if a uuid can't be found.
2510   Remove DESTDIR from LVM_SHARED_PATH.
2511   clvmd fixes: make FDs close-on-exec
2512                gulm unlocks VG & orphan locks at startup in case they are stale
2513                gulm now unlocks VG & orphan locks if client dies.
2514
2515 Version 2.01.06 - 1st March 2005
2516 ================================
2517   Suppress 'open failed' error messages during scanning.
2518   Option to suppress warnings of file descriptors left open.
2519   Fix default value of metadatacopies in documentation (2->1).
2520   Fix clvmd-gulm locking.
2521   ./configure --enable-debug now enables debugging code in clvmd.
2522   Fix clvmd-gulm node up/down code so it actually works.
2523   clvmd-gulm now releases locks when shut down.
2524
2525 Version 2.01.05 - 18th February 2005
2526 ====================================
2527   Static binary invokes dynamic binary if appropriate.
2528   Make clvmd config check a little more tolerant.
2529   gulm clvmd can now cope with >1 message arriving in a TCP message.
2530
2531 Version 2.01.04 - 9th February 2005
2532 ===================================
2533   Add fixed offset to imported pool minor numbers.
2534   Update binary pathnames in clvmd_init_rhel4.
2535   lvm2cmd.so should skip the check for open fds.
2536   Remove unused -f from pvmove.
2537   Gulm clvmd doesn't report "connection refused" errors.
2538   clvmd does a basic config file sanity check at startup.
2539   Fix potential thread shutdown race in clvmd.
2540
2541 Version 2.01.03 - 1st February 2005
2542 ===================================
2543   More 64-bit display/report fixes.
2544   More informative startup mesg if can't create /etc/lvm.
2545   Fix snapshot device size bug (since 2.01.01).
2546   clvmd announces startup and cluster connection in syslog.
2547   Gulm clvmd doesn't hang trying to talk to a rebooted node.
2548   Gulm clvmd doesn't print cman error on startup.
2549
2550 Version 2.01.02 - 21st January 2005
2551 ===================================
2552   Update clvmd_init_rhel4: use lvm.static and don't load dlm.
2553   Fix some size_t printing.
2554   Fix 64 bit xlate consts.
2555   Split out pool sptype_names to avoid unused const.
2556   Always fail if random id generation fails.
2557   Recognise gnbd devices.
2558   Fix clvmd startup bug introduced in cman/gulm amalgamation.
2559   Improve reporting of node-specific locking errors.
2560
2561 Version 2.01.01 - 19th January 2005
2562 ===================================
2563   Fix clvmd lv_info_by_lvid open_count.
2564   Store snapshot and origin sizes separately.
2565   Update vgcreate man page.
2566
2567 Version 2.01.00 - 17th January 2005
2568 ===================================
2569   Fix vgscan metadata auto-correction.
2570   Only ask libdevmapper for open_count when we need it.
2571   Adjust RHEL4 clvmd init script priority.
2572   Enable building of CMAN & GULM versions of clvmd into a single binary
2573
2574 Version 2.00.33 - 7th January 2005
2575 ==================================
2576   pvcreate wipes first 4 sectors unless given --zero n.
2577   gulm clvmd now uses new ccsd key names.
2578   gulm clvmd now doesn't ignore the first node in cluster.conf
2579   Improve clvmd failure message if it's already running.
2580   Allow user to kill clvmd during initialisation.
2581   Fix off-by-one error in cluster_locking that could cause read hangs.
2582
2583 Version 2.00.32 - 22nd December 2004
2584 ====================================
2585   Drop static/dl restriction for now.
2586   Fix an error fprintf.
2587   Fix vgdisplay -s. Breaks (undocumented) lvs/pvs/vgs -s instead for now.
2588   Fix device reference counting on re-opens.
2589   Ignore sysfs symlinks when DT_UNKNOWN.
2590   Add clvmd init script for RHEL4.
2591   Skip devices that are too small to be PVs.
2592   Fix pvchange -x segfault with lvm2-format orphan.
2593   Cope with empty msdos partition tables.
2594   Add CONTRIBUTORS file.
2595
2596 Version 2.00.31 - 12th December 2004
2597 ====================================
2598   Reopen RO file descriptors RW if necessary.
2599
2600 Version 2.00.30 - 10th December 2004
2601 ====================================
2602   Additional device-handling debug messages.
2603   Additional verbosity level -vvvv includes line numbers and backtraces.
2604   Verbose messages now go to stderr not stdout.
2605   Close any stray file descriptors before starting.
2606   Refine partitionable checks for certain device types.
2607   Allow devices/types to override built-ins.
2608   Fix lvreduce man page .i->.I
2609   Fix vgsplit man page title.
2610   Fix clvmd man makefile.
2611   Extend dev_open logging.
2612   Make clvmd_fix_conf.sh UNDOable.
2613
2614 Version 2.00.29 - 27th November 2004
2615 ====================================
2616   xlate compilation fix.
2617
2618 Version 2.00.28 - 27th November 2004
2619 ====================================
2620   Fix partition table & md signature detection.
2621   Minor configure/makefile tidy.
2622   Export version.h from tools for clvmd.
2623
2624 Version 2.00.27 - 24th November 2004
2625 ====================================
2626   Trap large memory allocation requests.
2627   Fix to partition table detection code.
2628   Improve filter debug mesgs.
2629   Make clvmd_fix_conf.sh UNDOable
2630
2631 Version 2.00.26 - 23rd November 2004
2632 ====================================
2633   Improve pool debugging stats.
2634   Detect partition table signature.
2635   pvcreate wipes md superblocks. (With --uuid or --restorefile it prompts.)
2636   Separate out md superblock detection code.
2637   Prevent snapshot origin resizing.
2638   Improve a vgremove error message.
2639   Update some man pages.
2640   Allow y/n with -ae args (exclusive activation).
2641   Fixes to lvcreate vgname parsing.
2642   Fix dm_name string size calculation.
2643   Improve clvmd error reporting during startup.
2644   Make clvmd cope with large gaps in node numbers IDs.
2645   Make clvmd initialisation cope better with debugging output.
2646   Tidy clvmd socket callbacks so all work happens outside main loop.
2647   clvmd -V now displays lvm version too.
2648   Add optional gulm build for clvmd
2649
2650 Version 2.00.25 - 29th September 2004
2651 =====================================
2652   Fix return code from rm_link for vgmknodes.
2653   Make clvmd LV hash table thread-safe.
2654   Fix clvmd locking so it will lock out multiple users on the same node.
2655   Fix clvmd VG locking to it can cope with multiple VG locks.
2656   Remove spurious trailing dot in lvreduce man page.
2657   Fix vgremove locking.
2658
2659 Version 2.00.24 - 16th September 2004
2660 =====================================
2661   Fix pool_empty so it really does empty the memory pool.
2662   Rename old segtypes files to segtype.
2663   Some fixes to memory debugging code.
2664   Exclude internal commands formats & segtypes from install.
2665
2666 Version 2.00.23 - 15th September 2004
2667 =====================================
2668   Export dm name build & split functions.
2669   Use O_NOATIME on devices if available.
2670   Write log message when each segtype/format gets initialised.
2671   New commands 'segtypes' and 'formats'.
2672   Suppress pvmove abort message in test mode.
2673   Improve pvcreate/remove device not found error message.
2674   Allow pvmove to move data within the same PV.
2675   Describe how pvmove works on man page.
2676   Test for incompatible format/segtype combinations in lv_extend.
2677   Fix lvchange example on man page.
2678
2679 Version 2.00.22 - 3rd September 2004
2680 ====================================
2681   Fix /dev/vgname perms.
2682   Restructure xlate.h.
2683   Add clvmd man page.
2684
2685 Version 2.00.21 - 19th August 2004
2686 ==================================
2687   Update cnxman-socket.h from cman.
2688   Recognise iseries/vd devices.
2689   Use 'make install_cluster' to install cluster extensions only.
2690   Cope with DT_UNKNOWN in sysfs.
2691   Fix extents_moved metadata size comment.
2692   Remove duplicate line in pvremove help text.
2693   Support variable mirror region size.
2694   Support PE ranges in pvmove source PV.
2695   Fixes to as-yet-unused LV segment splitting code.
2696   Change alloc_areas to pe_ranges and allow suppression of availability checks.
2697   Add dev_size column to pvs.
2698   Add report columns for in-kernel device number.
2699
2700 Version 2.00.20 - 3 July 2004
2701 =============================
2702   More autoconf fixes.
2703   Fix device number handling for 2.6 kernels.
2704
2705 Version 2.00.19 - 29 June 2004
2706 ==============================
2707   Reduce severity of setlocale failure message.
2708   Recognise argv[0] "initrd-lvm" (pld-linux).
2709   Make -O2 configurable.
2710   Added --disable-selinux to configure script.
2711   LD_FLAGS->LDFLAGS & LD_DEPS->LDDEPS in configure script.
2712   Add init_debug to clvmd.
2713
2714 Version 2.00.18 - 24 June 2004
2715 ==============================
2716   Fix vgchange activation.
2717   Add cluster support.
2718
2719 Version 2.00.17 - 20 June 2004
2720 ==============================
2721   configure --enable-fsadm to try out fsadm.  fsadm is not tested yet.
2722   Display all filtered devices, not just PVs, with pvs -a.
2723   Fix sync_dir() when no / in filename
2724   vgcfgbackup -f accepts template with %s for VG name.
2725   Extend hash functions to handle non-null-terminated data.
2726   Add local activation support.
2727   Tidy relative paths in makefile includes.
2728   fsadm support for fsck and resizing - needs testing.
2729   Add read-only GFS pool support.
2730   Add lvm2create_initrd script from http://poochiereds.net/svn/lvm2/
2731   Fix rounding of large diplayed sizes.
2732   Suppress decimal point when using units of sectors/bytes.
2733   Additional kernel target checks before pvmove & snapshot creation.
2734   Add i2o_block.
2735
2736 Version 2.00.16 - 24 May 2004
2737 =============================
2738   Set area_count within alloc_lv_segment.
2739   Remove error labels from lvresize.
2740   Fix a pvs error path.
2741   xxchange -ae for exclusive activation.
2742   Don't return non-zero status if there aren't any volume groups.
2743   Add --alloc argument to tools.
2744   Rename allocation policies to contiguous, normal, anywhere, inherit.
2745   nextfree becomes normal; anywhere isn't implemented yet.
2746   LV inherits allocation policy from VG. Defaults: LV - inherit; VG - normal
2747   Additional status character added to vgs to indicate allocation policy.
2748   Add reset_fn to external_locking.
2749   Ensure presence of virtual targets before attempting activating.
2750   Attempt to fix resizing of snapshot origins.
2751   Restructure lvresize, bringing it closer to lvcreate.
2752   A quick sanity check on vg_disk struct when read in.  More checks needed.
2753   Only include visible LVs in active/open counts.
2754   Add virtual segment types, zero and error.  A large sparse device can be
2755 constructed as a writeable snapshot of a large zero segment.
2756   Add --type to lvcreate/resize.
2757   Push lv_create & alloc policy up to tool level.
2758   Fix pvdisplay return code.
2759   Detect invalid LV names in arg lists.
2760   Reporting uses line-at-a-time output.
2761   lvm2 format sets unlimited_vols format flag.
2762   Internal-only metadata flag support.
2763   Basic checking for presence of device-mapper targets.
2764   Separate out polldaemon.
2765   Revise internal locking semantics.
2766   Move find_pv_by_name to library.
2767   Rename move->copy.
2768   Add devices to segments report.
2769   Begin separating out segment code. There's a lot of change here.
2770   Compress any (obsolete) long LVM1 pvids encountered.
2771   Support for tagged config files.
2772   Don't abort operations if selinux present but disabled.
2773   Fix typo in configure which left HAVE_LIBDL unset.
2774
2775 Version 2.00.15 - 19 Apr 2004
2776 =============================
2777   configure --with-owner= --with-group= to avoid -o and -g args to 'install'
2778
2779 Version 2.00.14 - 16 Apr 2004
2780 =============================
2781   Use 64-bit file functions by default.
2782
2783 Version 2.00.13 - 16 Apr 2004
2784 =============================
2785   Set devices/md_component_detection = 1 to ignore devices containing md
2786   superblocks. [Luca Berra]
2787   Ignore error setting selinux file context if fs doesn't support it.
2788
2789 Version 2.00.12 - 14 Apr 2004
2790 =============================
2791   Install a default lvm.conf into /etc/lvm if there isn't one already.
2792   Allow different installation dir for lvm.static (configure --staticdir=)
2793   Fix inverted selinux error check.
2794   Recognise power2 in /proc/devices.
2795   Fix counting in lvs_in_vg_opened. [It ignored devices open more than once.]
2796
2797 Version 2.00.11 - 8 Apr 2004
2798 ============================
2799   Set fallback_to_lvm1 in lvm.conf (or configure --enable-lvm1_fallback)
2800   to run lvm1 binaries if running a 2.4 kernel without device-mapper.
2801
2802 Version 2.00.10 - 7 Apr 2004
2803 ============================
2804   More fixes for static build.
2805   Add basic selinux support.
2806   Fix sysfs detection.
2807
2808 Version 2.00.09 - 31 Mar 2004
2809 =============================
2810   Update copyright notices for Red Hat.
2811   Fix vgmknodes to remove dud /dev/mapper entries. (libdevmapper update reqd).
2812   Add LVM1-style colon output to vgdisplay.
2813   lvchange --refresh to reload active LVs.
2814   Add string display to memory leak dump.
2815   Add locking flags & memlock option.
2816   Add list_versions to library.
2817   Ignore open hidden LVs when checking if deactivation is OK.
2818   Suppress move percentage when device inactive.
2819   Add lv_info_by_lvid.
2820   Various tidy-ups to the build process.
2821   Rebaseline internal verbose level.
2822   Add --nolocking option for read operations if locking is failing.
2823   Add option to compile into a library.
2824   When compiled without libdevmapper, only print warning message once.
2825   Fix lvreduce PV extent calculations.
2826   Fix DESTDIR to work with configure path overrides.
2827   Always use / as config file separator & rename internal config file variables.
2828   Add support for tagging PV/VG/LVs and hosts.
2829   Fix rare bug in recognition of long cmdline argument forms.
2830   Add basic internationalisation infrastructure.
2831   Don't recurse symlinked dirs such as /dev/fd on 2.6 kernels.
2832   Update autoconf files.
2833   Add sysfs block device filtering for 2.6 kernels.
2834   Update refs for move to sources.redhat.com.
2835
2836 Friday 14th November 2003
2837 =========================
2838 Some bug fixes & minor enhancements, including:
2839   Backwards compatibility with LVM1 metadata improved.
2840   Missing man pages written.
2841   Tool error codes made more consistent.
2842   vgmknodes written.
2843   O_DIRECT can be turned off if it doesn't work in your kernel.
2844   dumpconfig to display the active configuration file
2845
2846 You need to update libdevmapper before using 'vgmknodes' or 'vgscan --mknodes'.
2847 If your root filesystem is on an LV, you should run one of those two
2848 commands to fix up the special files in /dev in your real root filesystem
2849 after finishing with your initrd.  Also, remember you can use
2850 'vgchange --ignorelockingfailure' on your initrd if the tool fails because
2851 it can't write a lock file to a read-only filesystem.
2852
2853 Wednesday 30th April 2003
2854 =========================
2855 A pvmove implementation is now available for the new metadata format.
2856
2857 When running a command that allocates space (e.g. lvcreate), you can now
2858 restrict not only which disk(s) may be used but also the Physical Extents
2859 on those disks.  e.g. lvcreate -L 10 vg1 /dev/hda6:1000-2000:3000-4000
2860
2861
2862 Monday 18th November 2002
2863 ========================
2864
2865 The new format of LVM metadata is ready for you to test!
2866   We expect it to be more efficient and more robust than the original format.
2867   It's more compact and supports transactional changes and replication.
2868   Should things go wrong on a system, it's human-readable (and editable).
2869
2870 Please report any problems you find to the mailing list,
2871 linux-lvm@sistina.com.  The software has NOT yet been thoroughly
2872 tested and so quite possibly there'll still be some bugs in it.
2873 Be aware of the disclaimer in the COPYING file.
2874
2875 While testing, we recommend turning logging on in the configuration file
2876 to provide us with diagnostic information:
2877   log {
2878         file="/tmp/lvm2.log"
2879         level=7
2880         activation=1
2881   }
2882
2883 You should schedule regular backups of your configuration file and
2884 metadata backups and archives (normally kept under /etc/lvm).
2885
2886 Please read docs/example.conf and "man lvm.conf" to find out more about
2887 the configuration file.
2888
2889 To convert an existing volume group called vg1 to the new format using
2890 the default settings, use "vgconvert -M2 vg1".  See "man vgconvert".
2891
2892 -M (or --metadatatype in its long form) is a new flag to indicate which
2893 format of metadata the command should use for anything it creates.
2894 Currently, the valid types are "lvm1" and "lvm2" and they can be
2895 abbreviated to "1" and "2" respectively.  The default value for this
2896 flag can be changed in the global section in the config file.
2897
2898 Backwards-compatible support for the original LVM1 metadata format is
2899 maintained, but it can be moved into a shared library or removed
2900 completely with configure's --with-lvm1 option.
2901
2902 Under LVM2, the basic unit of metadata is the volume group.  Different
2903 volume groups can use different formats of metadata - vg1 could use
2904 the original LVM1 format while vg2 used the new format - but you can't
2905 mix formats within a volume group.  So to add a PV to an LVM2-format
2906 volume group you must run "pvcreate -M2" on it, followed by "vgextend".
2907
2908 With LVM2-format metadata, lvextend will let you specify striping
2909 parameters.  So an LV could consist of two or more "segments" - the
2910 first segment could have 3 stripes while the second segment has just 2.
2911
2912 LVM2 maintains a backup of the current metadata for each volume group
2913 in /etc/lvm/backup, and puts copies of previous versions in
2914 /etc/lvm/archive.  "vgcfgbackup" and "vgcfgrestore" can be used to
2915 create and restore from these files.  If you fully understand what
2916 you're doing, metadata can be changed by editing a copy of a current
2917 backup file and using vgcfgrestore to reload it.
2918
2919 Please read the pvcreate man page for more information on the new
2920 format for metadata.
2921
2922 All tools that can change things have a --test flag which can be used
2923 to check the effect  of a set of cmdline args without really making the
2924 changes.
2925
2926
2927 What's not finished?
2928 ====================
2929 The internal cache.  If you turn on debugging output you'll see lots of
2930 repeated messages, many of which will eventually get optimised out.
2931
2932 --test sometimes causes a command to fail (e.g. vgconvert --test) even
2933 though the real command would work: again, fixing this is waiting for
2934 the work on the cache.
2935
2936 Several of the tools do not yet contain the logic to handle full
2937 recovery: combinations of pvcreate and vgcfgrestore may sometimes be
2938 needed to restore metadata if a tool gets interrupted or crashes or
2939 finds something unexpected.  This applies particularly to tools that
2940 work on more than one volume group at once (e.g. vgsplit).
2941
2942 Display output.  Some metadata information cannot yet be displayed.
2943
2944 Recovery tools to salvage "lost" metadata directly from the disks:
2945 but we hope the new format will mean such tools are hardly ever needed!