WHATS_NEW

   1 Version 2.02.96 -
   2 ================================
   3   Keep exclusive activation in pvmove if LV is already active.
   4   Disallow pvmove for exclusive LV if some affected LVs are not exclusively activated.
   5   Remove unused and wrongly set cluster VG flag from clvmd lock query command.
   6   Fix pvmove for exclusively activated LV pvmove in clustered VG. (2.02.86)
   7   Always free hash table on update_pvid_to_vgid() in lvmetad.
   8   Update and fix monitoring of thin pool devices.
   9   Check hash insert success in lock_vg clvmd.
  10   Check for buffer overwrite in get_cluster_type() clvmd.
  11   Fix global/detect_internal_vg_cache_corruption config check.
  12   Update lcov Makefile target to support all dmeventd plugins.
  13   Fix initializiation of thin monitoring (2.02.92).
  14   Support improperly formated device numbers in /proc/devices (2.02.91).
  15   Fix fsadm propagation of -e option.
  16   Fix fsadm parsing of /proc/mounts files (don't check for substrings).
  17   Fix fsadm usage of arguments with space.
  18   Fix a regression in handling of lvchange/lvcreate --major/--minor.
  19   Fix name conflicts that prevent down-converting RAID1 when specifying a device
  20   Improve thin_check option passing and use configured path.
  21   Add --with-thin-check configure option for path to thin_check.
  22   Detect lvm binary path in lvmetad udev rules.
  23   Fix error message when pvmove LV activation fails with name already in use.
  24   Better structure layout for device_info in dev_subsystem_name().
  25   Change message severity for creation of VG over uninitialised devices.
  26   Fix error path for failing toolcontext creation.
  27   Fix warn msg for thin pool chunk size and update man for chunksize (2.02.89).
  28
  29 Version 2.02.95 - 6th March 2012
  30 ================================
  31   If unspecified, adjust thin pool metadata and chunk size to fit into 128MB.
  32   Print just warning on thin pool check callback path for failing check.
  33   Always use 64bit arithmetic with VG extent_size expression.
  34   Validate udev structures in _insert_udev_dir().
  35   Take repeatable --major --minor with pvscan --cache instead of major:minor.
  36   Scan all devices for lvmetad if 'pvscan --cache' used without device list.
  37   Populate lvmcache from lvmetad before displaying PVs in pvscan. (2.02.94)
  38   Suppress incorrect -n pvscan warning now always displayed. (2.02.94)
  39
  40 Version 2.02.94 - 3rd March 2012
  41 ================================
  42   Add support to execute thin_check with each de/active of thin pool.
  43   Fix automatic estimation of metadata device size for thin pool.
  44   Test for alloc fail from _alloc_pv_segment() in _extend_pv().
  45   Check for alloc fail from get_segtype_from_string() in _lvcreate_params().
  46   Add _rimage as reserved suffix to lvm.8 man page.
  47   Improve error logging from mpath filter.
  48   Check for allocation failure in hold_lock() in clvmd.
  49   Use set_lv() (wipe initial 4KiB) for non zeroed thin volume.
  50   Allow cluster mirrors to handle the absence of the checkpoint lib (libSaCkpt).
  51   Revert free of allocated segtype in init segment error path (2.02.89).
  52   Test dm_hash_insert() failures in filter-persistent.c and fid_add_mda().
  53   Ensure clvmd message is always NUL-terminated after read.
  54   Add some close() and dev_close() error path backtraces.
  55   Set stdin/stdout/stderr to /dev/null for polldaemon.
  56   Limit the max size of processed clvmd message to ~8KB.
  57   Do not send uninitialised bytes in cluster error reply messages.
  58   Use unsigned type for bitmask instead of enum type for lvm properties.
  59   Add missing cleanup of excl_uuid hash on some exit paths of clvmd.
  60   Check for existence of vg_name in _format1/_pool_vg_read().
  61   Fix missing break in _format_pvsegs (2.02.92).
  62   Test seg pointer for non-null it in raid_target_percent error path.
  63   Check for errors in _init_tags() during config loading.
  64   Always check result of _set_vg_name() in lvcreate.
  65   Drop unused call to uname() during clvmd initialization.
  66   Test allocation result in sysfs filter creation.
  67   Limit sscanf parameters with buffer size in clvmd get_initial_state().
  68   Use const lv pointer for lv_is_active...() functions.
  69   Use same signed numbers in _mirrored_transient_status().
  70   Support 'pvscan --cache' to update lvmetad state from specific PVs.
  71   Provide new metadata daemon for testing with configure --enable-lvmetad .
  72   Integrate client-side lvmetad into build.
  73
  74 Version 2.02.93 - 23rd February 2012
  75 ====================================
  76   Require number of stripes to be greater than parity devices in higher RAID.
  77   Fix allocation code to allow replacement of single RAID 4/5/6 device.
  78   Check all tags and LV names are in a valid form in vg_validate.
  79   Add tmpfiles.d style configuration for lvm2 lock and run directory.
  80   Add configure --with-tmpfilesdir for dir holding volatile-file configuration.
  81   Allow 'lvconvert --repair' to operate on RAID 4/5/6.
  82   Fix build_parallel_areas_from_lv to account correctly for raid parity devices.
  83   Print message when faulty raid devices have been replaced.
  84
  85 Version 2.02.92 - 20th February 2012
  86 ====================================
  87   Read dmeventd monitoring config settings for every lvm command.
  88   For thin devices, initialize monitoring only for thin pools not thin volumes.
  89   Make conversion from a synced 'mirror' to 'raid1' not cause a full resync.
  90   Properly test buffer for unit check in units_to_bytes().
  91   Add configure --with-systemdsystemunitdir.
  92   Add check for allocation failure in _build_matcher().
  93   Add check for rimage name allocation failure in _raid_add_images().
  94   Add check for mda_copy failure in _text_pv_setup().
  95   Add check for _mirrored_init_target failure.
  96   Add free_orphan_vg.
  97   Skip pv/vg_set_fid processing if the fid is same.
  98   Check for foreach loop errors in _vg_read_orphans() (2.02.91).
  99   Clean error paths for format instance creation (2.02.91).
 100   Release vg in error path of _format1_vg_read() instead of just free().
 101   Report allocation failure for allocation of PV structure.
 102   Add clvmd init dependency on dlm service when running with new corosync.
 103
 104 Version 2.02.91 - 12th February 2012
 105 ====================================
 106   Remove PV-based format instances (which are no longer needed).
 107   Link all orphan PVs directly to a per-format global orphan VG.
 108   Refactor lvmcache around an internal API.
 109   Stop processing lvextend if trying to extend a mirror that is being recovered.
 110   Add pool_below_threshold() function to check thin pool percent status.
 111   Fix test for snap percent for failing merge when removing LV.
 112   Switch int to void return for str_list_del().
 113   Fix error path handling in _build_desc().
 114   Add range test for device number in _scan_proc_dev().
 115   Use signed long for sysconf() call in cmirrord.
 116   Do not write in front of log buffer in print_log().
 117   Add boundary test for number of mirror devs and logs.
 118   Check that whole locking_dir fits _lock_dir buffer in init_file_locking().
 119   Use list functions for label_exit().
 120   Ensure strncpy() function always ends with '\0'.
 121   Set status in _fsadm_cmd() for error path.
 122   Add missing deps for lvm2api for rebuild when lvm-internal is changed.
 123   Fix resource leaks for failing allocation of formats (lvm1/2,pool).
 124   Release allocated resources in error path for composite_filter_create().
 125   Do not use lstat() results when failed in _rm_link().
 126   Remove a "waiting for another thread" log message from dmeventd plugins.
 127
 128 Version 2.02.90 - 1st February 2012
 129 ===================================
 130   sync_local_dev_names before (re)activating mirror log for initialisation.
 131   Disable partial activation for thin LVs and LVs with all missing segments.
 132   Do not print warning for pv_min_size between 512KB and 2MB.
 133   Clean up systemd unit ordering and requirements.
 134   Fix lcov reports when srcdir != builddir.
 135   Allow ALLOC_NORMAL to track reserved extents for log and data on same PV.
 136   Automatically detect whether corosync clvmd needs to use confdb or cmap.
 137   Fix data% report for thin volume used as origin for non-thin snapshot.
 138
 139 Version 2.02.89 - 26th January 2012
 140 ===================================
 141   Add missing check for uname result in clvmd TEST processing.
 142   Fix memleak in target_version() error path (unsupported LIST_VERSIONS).
 143   Limit data_alignment and data_alignment_offset to 32bit values.
 144   Check for correctness of uint64 dev_size value in format_text.
 145   Thin pools have segment fields thin_count, zero, transaction_id.
 146   Add data_percent and metadata_percent for thin pools to lvs -v.
 147   Add data_lv & metadata_lv fields to lvs for thin pools.
 148   Add data_percent & pool_lv fields to lvs for thin volumes.
 149   Rename origin_only parm to use_layer for lv_info and use with thin LVs.
 150   Add lv_thin_pool_transaction_id to read the transaction_id value.
 151   Use {suspend,resume}_origin_only when up-converting RAID, as mirrors do.
 152   Always add RAID metadata LVs to deptree (even when origin_only is set).
 153   Change exclusive LV activation logic to try local node before remote nodes.
 154   Add CLVMD_FLAG_REMOTE to skip processing on local node.
 155   Prompt if request is made to remove a snapshot whose "Merge failed".
 156   Allow removal of an invalid snapshot that was to be merged on next activation.
 157   Don't allow a user to merge an invalid snapshot.
 158   Use m and M lv_attr to indicate that a snapshot merge failed in lvs.
 159   Differentiate between snapshot status of "Invalid" and "Merge failed".
 160   Report snapshot usage percent of origin volume when a snapshot is merging.
 161   Require global/lvdisplay_shows_full_device_path for (bogus) lvm1-style paths.
 162   Do not report linear segtype for non-striped targets.
 163   Record creation host & time for each LV and report as lv_time & lv_host.
 164   Make error message hit when preallocated memlock memory exceeded clearer.
 165   Use R lv_attr to indicate read-only activation of non-read-only device in lvs.
 166   Show read-only activation override in lvdisplay & add 4 to perms in -c.
 167   Add activation/read_only_volume_list to override LV permission in metadata.
 168   Give priority to emcpower devices with duplicate PVIDs.
 169   Add check for error in _adjust_policy_params() (lvextend --use-policies).
 170   Round specified percentages upwards (%LV, %VG...) when resizing LVs.
 171   Use dmeventd_lvm2_command in dmeventd plugins snapshot, raid, mirror.
 172   Add helper dmeventd_lvm2_command() to libdevmapper-event-lvm2 library.
 173   Update documentation for dmeventd.
 174   Remove unnecessary stat before opening device in dev_open_flags.
 175   Reduce number of lstat calls when selecting device alias.
 176   Add _dev_init to initialize common struct device members.
 177   Always zalloc struct device during initialization.
 178   Fix missing thread list manipulation protection in dmeventd.
 179   Do not derefence lv pointer in _percent_run() function before NULL check.
 180   Allow empty strings for description and creation_host config fields.
 181   Issue deprecation warning when removing last lvm1-format snapshot.
 182   Reinstate support for snapshot removal with lvm1 format. (2.02.86)
 183   Add policy-based automated repair of RAID logical volumes.
 184   Don't allow two images to be split and tracked from a RAID LV at one time.
 185   Don't allow size change of RAID LV that is tracking changes for a split image.
 186   Don't allow size change of RAID sub-LVs independently.
 187   Don't allow name change of RAID LV that is tracking changes for a split image.
 188   Do not allow users to change the name of RAID sub-LVs independently.
 189   Do not allow users to change permissions on RAID sub-LVs.
 190   Allow lvconvert to replace specified devices in a RAID array.
 191   Add activation/use_linear_target enabled by default.
 192   Use gcc warning options only with .c to .o compilation.
 193   Move y/n prompts to stderr and repeat if response has both 'n' and 'y'.
 194   Replace the unit testing framework with CUnit (--enable-testing).
 195   Fix dmeventd snapshot monitoring when multiple extensions were involved.
 196   Don't ignore configure --mandir and --infodir.
 197   Drop pool memory allocated within lv_has_target_type().
 198   Reduce stack allocation of some PATH_MAX sized char buffers.
 199   Unlock memory before writing metadata.
 200   Add query before removing snapshots when inactive snapshot origin is removed.
 201   Allow changing availability state of snapshots.
 202   Skip non-virtual snapshots for availability change for lvchange with vg name.
 203   Skip adjusting mirror region size unless mirror or raid.
 204   Reorder prompt conditions for removal of active volumes.
 205   Avoid 'mda inconsistency' by properly registering UNLABELLED_PV flag.(2.02.86)
 206   Fix --enable-static_link unless using --enable-dmeventd / --enable-udev_sync.
 207   Move gentoo MAKEDEV to /sbin in lvm2create_initrd.
 208   Add filter to avoid scan of device if it is part of active multipath.
 209   Add missing default $LVM_VG_NAME usage for snapshots.
 210   Avoid extent_count overflow with lvextend.
 211   Add missing lvrename mirrored log recursion in for_each_sub_lv.
 212   Improve lv_extend stack reporting.
 213   Increase virtual segment size instead of creating multiple segment list.
 214   Add last_seg(lv) internal function.
 215   Support empty string for log/prefix.
 216   Disallow mirrored logs for cluster mirrors. (2.02.72)
 217   Don't print char type[8] as a plain string in pvck PV type.
 218   Use vg memory pool implicitly for vg read.
 219   Always use vg memory pool for allocated lv segment.
 220   Remove extra 4kB buffer allocated on stack in print_log().
 221   Make move_lv_segment non-static function and use dm_list function.
 222   Pass exclusive LV locks to all nodes in the cluster.
 223   Improve lvcreate chunksize man page description.
 224   Improve man page style for lvcreate & lvs.
 225   Avoid recursive calls to dmeventd in its LVM plugins.
 226   Log dev name now returned to kernel for registering during cmirror CTR.
 227   Fix lv_info open_count test for disabled verify_udev_operations. (2.02.86)
 228   Simplify code for lvm worker thread in clvmd.
 229   Use pthread_barrier to synchronize clvmd threads at startup.
 230   Limit clvmd's thread size to 128KiB and ignore activation/reserved_stack.
 231   Reduce default preallocated stack size to 64KiB.
 232   Add check for access through NULL pointer when refresh_filter() fails.
 233   Use pthread condition for SINGLENODE lock implementation.
 234   Improve backtrace reporting for some dev_manager_ functions.
 235   Change message severity to log_warn when symlink creation fails.
 236   Add ability to convert mirror segtype to RAID1 segtype.
 237   Add ability to convert from linear to RAID1.
 238   Add ability to extend mirrors with '--nosync' option.
 239   Fix splitmirror LV names to maintain consistent state in a cluster.
 240   Apply appropriate udev flags when suspending/resuming mirror sub-LVs.
 241   Fix vgsplit to handle mirrored logs.
 242   Clarify multi-name device filter pattern matching explanation in lvm.conf.
 243   Introduce revert_lv for better pvmove cleanup.
 244   Replace incomplete pvmove activation failure recovery code with a message.
 245   Abort if _finish_pvmove suspend_lvs fails instead of cleaning up incompletely.
 246   Change suspend_lvs to call vg_revert internally.
 247   Change vg_revert to void and remove superfluous calls after failed vg_commit.
 248   Use execvp for CLVMD restart to preserve environment settings.
 249   Restart CLVMD with same cluster manager.
 250   Fix log_error() usage in raid and unknown segtype initialisation.
 251   Improve testing Makefile.
 252   Fix install_ocf make target when srcdir != builddir. (2.02.80)
 253   Support env vars LVM_CLVMD_BINARY and LVM_BINARY in clvmd.
 254   Fix restart of clvmd (preserve exlusive locks). (2.02.64)
 255   Add 'Volume Type' lv_attr characters for RAID and RAID_IMAGE.
 256   Add activation/retry_deactivation to lvm.conf to retry deactivation of an LV.
 257   Replace open_count check with holders/mounted_fs check on lvremove path.
 258   Disallow the creation of mirrors (mirror or raid1 segtype) with only one leg.
 259   Cleanup restart clvmd code (no memory allocation, debug print passed args).
 260   Add all exclusive locks to clvmd restart option args.
 261   Always send the whole clvmd packet header in refresh commands.
 262   Add missing error checks for some system calls in cmirrord.
 263   Add missing log_error() to lvresize command when fsadm tool fails.
 264   Add support for DM_DEV_DIR device path into fsadm script.
 265   Support different PATH setting for fsadm script testing.
 266   Surround all executed commands with quotes in fsadm script.
 267   Fix missing '$' in test for content of "$LVM" in fsadm script.
 268   Move debug message in exec_cmd after sync_local_dev_names.
 269   Fix clvmd processing of invalid request on local socket.
 270   Fix command line option decoding.
 271   Reset LV status when unlinking LV from VG.
 272   Fix overly-strict extent-count divisibility requirements for striped mirrors.
 273   Fix rounding direction in lvresize when reducing volume size.
 274   Fix possible overflow of size if %FREE or %VG is used.
 275   Fix vgchange activation of snapshot with virtual origin.
 276   Activate virtual snapshot origin exclusively (only on local node in cluster).
 277   Fix lv_mirror_count to handle mirrored stripes properly.
 278   Fix failure to down-convert a mirror to linear due to udev "dev open" conflict
 279   Fix mirrored log creation when PE size is small: use log_size >= region_size.
 280   Fix log size calculation when only a log is being added to a mirror.
 281   Add 7th lv_attr char to show the related kernel target.
 282   Terminate pv_attr field correctly. (2.02.86)
 283   Fix 'not not' typo in pvcreate man page.
 284   Improve man page style for fsadm, lvreduce, lvremove, lvrename & lvresize.
 285   Support break for vgchange and vgrefresh operation.
 286   Switch int to unsigned type for pvmetadatacopies for pv_create().
 287   Replace :space: with [\t ] for awk in vgimportclone (not widely supported).
 288   Begin using 64-bit status field flags.
 289   Detect sscanf recovering_region input error in cmirrord pull_state().
 290   Fix error path bitmap leak in cmirrord import_checkpoint().
 291   Log unlink() error in cmirrord remove_lockfile().
 292   Remove incorrect requirement for -j or -m from lvchange error message.
 293   Fix unsafe table load when splitting off smaller mirror from a larger one.
 294   Use size_t return type for text_vg_export_raw() and export_vg_to_buffer().
 295   Add configure --enable-lvmetad for building the (experimental) LVMetaD.
 296   Fix resource leak when strdup fails in _get_device_status() (2.02.85).
 297   Directly allocate buffer memory in a pvck scan instead of using a mempool.
 298   Add configure --with-thin for segtypes "thin" and "thin_pool".
 299   Fix raid shared lib segtype registration (2.02.87).
 300
 301 Version 2.02.88 - 19th August 2011
 302 ==================================
 303   Remove incorrect 'Breaking' error message from allocation code. (2.02.87)
 304   Add lvconvert --merge support for raid1 devices split with --trackchanges.
 305   Support lvconvert of -m1 raid1 devices to a higher number.
 306   Add --trackchanges support to lvconvert --splitmirrors option for raid1.
 307   Support splitting off a single raid1 rimage in lvconvert --splitmirrors.
 308   Use sync_local_dev_names when reducing number of raid rimages in lvconvert.
 309   Add -V as short form of --virtualsize in lvcreate.
 310   Fix make clean not to remove Makefile.  (2.02.87)
 311
 312 Version 2.02.87 - 12th August 2011
 313 ==================================
 314   Fix make distclean to remove stray dmeventd and exported symbols files.
 315   Add global/detect_internal_vg_cache_corruption to lvm.conf.
 316   Use memory pool locking to check for corruption of internal VG structs.
 317   Cache and share generated VG structs.
 318   Fix possible format instance memory leaks and premature releases in _vg_read.
 319   Suppress locking error messages in monitoring init scripts.
 320   If pipe in clvmd fails return busy instead of using uninitialised descriptors.
 321   Add ability to reduce the number of mirrors in raid1 arrays to lvconvert.
 322   Add dmeventd plugin for raid.
 323   Replace free_vg with release_vg and move it to vg.c.
 324   Remove INCONSISTENT_VG flag from the code.
 325   Remove lock from cache in _lock_vol even if unlock fails.
 326   Initialise clvmd locks before lvm context to avoid open descriptor leaks.
 327   Remove obsolete gulm clvmd cluster locking support.
 328   Suppress low-level locking errors and warnings while using --sysinit.
 329   Remove unused inconsistent_seqno variable in _vg_read().
 330   Remove meaningless const type qualifiers on cast type.
 331   Add test for fcntl error in singlenode client code.
 332   Remove --force option from lvrename manpage.
 333   Add global/mirror_segtype_default to pick md raid or dm mirror as default.
 334   Add configure --with-raid for new segtype 'raid' for MD RAID 1/4/5/6 support.
 335   Change DEFAULT_UDEV_SYNC to 1 so udev_sync is used if there is no config file.
 336   Add systemd unit file to provide lvm2 monitoring.
 337   Compare file size (as well as timestamp) to detect changed config file.
 338
 339 Version 2.02.86 - 8th July 2011
 340 ===============================
 341   Remove unnecessary warning in pvcreate for MD linear devices.
 342   Move snapshot removal activation logic into lib/activate.
 343   Cope with a PV only discovered missing when creating deptree.
 344   Abort operation if dm_tree_node_add_target_area fails.
 345   Add activation/checks to lvm.conf to perform additional ioctl validation.
 346   Always preload on suspend, even if no metadata changed (lvchange --refresh).
 347   When suspending, automatically preload newly-visible existing LVs.
 348   Teardown any stray devices with $COMMON_PREFIX during test runs.
 349   Reinstate correct permissions when creating mirrors. [2.02.85]
 350   Append 'm' attribute to pv_attr for missing PVs.
 351   Annotate CLVMD_CMD_SYNC_NAMES in decode_cmd.
 352   Remove enforcement of udev verification when using non-standard /dev location.
 353   Keep an exclusive mirror non-clustered if reloaded e.g. during conversion.
 354   Reject allocation if number of extents is not divisible by area count.
 355   Fix cluster mirror creation to work with new mirror allocation algorithm.
 356   Ignore activation/verify_udev_operations if dm kernel driver vsn < 4.18.
 357   Add activation/verify_udev_operations to lvm.conf, disabled by default.
 358   Call vg_mark_partial_lvs() before VG structure is returned from the cache.
 359   Remove unused internal flag ACTIVATE_EXCL from the code.
 360   Remove useless test of ACTIVATE_EXCL in lv_add_mirrors() clustered code path.
 361   Add lv_activate_opts structure for activation (replacing activation flags).
 362   Ignore inconsistent pre-commit metadata on MISSING_PV devs while activating.
 363   Add proper udev library context initialization and finalization to liblvm.
 364   Fix last snapshot removal to avoid table reload while a device is suspended.
 365   Use dm_get_suspended_counter in replacement critical_section logic.
 366   Downgrade critical_section errors to debug level until it is moved to libdm.
 367   Fix ignored background polling default in vgchange -ay.
 368   Fix pvmove activation sequences to avoid trapped I/O with multiple LVs.
 369   Annotate critical section debug messages.
 370   Fix reduction of mirrors with striped segments to always align to stripe size.
 371   Validate mirror segments size.
 372   Include lvmetad development code in tree.
 373   Fix extent rounding for striped volumes never to reduce more than requested.
 374   Fix create_temp_name to replace any '/' found in the hostname with '?'.
 375   Always use append to file in lvmdump. selinux policy may ban file truncation.
 376   Propagate test mode to clvmd to skip activation and changes to held locks.
 377   Defer writing PV labels until vg_write.
 378   Store label_sector only in struct physical_volume.
 379   Permit --available with lvcreate so non-snapshot LVs need not be activated.
 380   Report sector containing label in verbose message.
 381   Clarify error message when unable to convert an LV into a snapshot of an LV.
 382   Add and use dev_open_readonly and variations.
 383   Do not log a superfluous stack message when the lv is properly processed.
 384   Do not issue an error message when unable to remove .cache on read-only fs.
 385   Avoid memlock size mismatch by preallocating stdio line buffers.
 386   Rewrite vgreduce --removemissing --force to share lvconvert code.
 387   Reorganize lvconvert --repair code to allow reuse.
 388
 389 Version 2.02.85 - 29th April 2011
 390 =================================
 391   Add new obtain_device_list_from_udev setting to lvm.conf.
 392   Obtain device list from udev by default if LVM2 is compiled with udev support.
 393   Add test for vgimportclone and querying of vgnames with duplicate pvs.
 394   Avoid use of released memory when duplicate PV is found.
 395   Add "devices/issue_discards" to lvm.conf.
 396   Issue discards on lvremove and lvreduce etc. if enabled and supported.
 397   Add seg_pe_ranges and devices fields to liblvm.
 398   Fix incorrect tests for dm_snprintf() failure.
 399   Fix some unmatching sign comparation gcc warnings in the code.
 400   Support lv_extend() on empty LVs.
 401   Avoid regenerating cache content when exported VG buffer is unchanged.
 402   Extend the set of memory regions that are not locked to memory.
 403   Workaround some problems when compiled for valgrind memcheck.
 404   Support controlled quit of the lvm_thread_fn function in clvmd.
 405   Fix reading of unallocated memory in lvm1 format import function.
 406   Replace several strncmp() calls with id_equal().
 407   Fix lvmcache_info transfer to orphan_vginfo in _lvmcache_update_vgname().
 408   Fix -Wold-style-definition gcc warnings.
 409   Rename MIRROR_NOTSYNCED to LV_NOTSYNCED.
 410   Fix _move_lv_segments to handle empty LVs.
 411   Fixes for lvconvert (including --repair) of temporary mirror stacks.
 412   Avoid potential loop when removing mirror images.
 413   Fix mirror removal always to take account of preferences as to which.
 414   Fix MIRRORED flag usage.
 415   Remove error messages issued by device_is_usable when run as non-root.
 416   Add missing \0 for grown debug object in _bitset_with_random_bits().
 417   Fix allocation of system_id buffer in volume_group structure.
 418   Fix readlink usage inside get_primary_dev().
 419   Use format instance mempool where possible and adequate.
 420   Call destroy_instance for any PVs found in VG structure during vg_free call.
 421   Add new free_pv_fid fn and use it throughout to free all attached fids.
 422   Use only vg_set_fid and new pv_set_fid fn to assign the format instance.
 423   Make create_text_context fn static and move it inside create_instance fn.
 424   Add mem and ref_count fields to struct format_instance for own mempool use.
 425   Use new alloc_fid fn for common format instance initialisation.
 426   Optimise _get_token() and _eat_space().
 427   Add _lv_postorder_vg() to improve efficiency for all LVs in VG.
 428   Add gdbinit script for debugging.
 429   Use hash tables to speedup string search in vg_validate().
 430   Refactor allocation of VG structure adding alloc_vg().
 431   Avoid possible endless loop in _free_vginfo when 4 or more VGs have same name.
 432   Use empty string instead of /dev// for LV path when there's no VG.
 433   Don't allocate unused VG mempool in _pvsegs_sub_single.
 434   Do not send uninitialised bytes in local clvmd messages.
 435   Support --help option for clvmd and return error for unknown option.
 436   Avoid reading freed memory when printing LV segment type.
 437   Fix syslog initialisation in clvmd to respect lvm.conf setting.
 438   Fix possible overflow in maximum stripe size and physical extent size.
 439   Improve pvremove error message when PV belongs to a VG.
 440   Extend normal policy to allow mirror logs on same PVs as images if necessary.
 441   Improve cling policy to recognise PVs already used during the transaction.
 442   Improve normal allocation algorithm to include clinging to existing areas.
 443   Add allocation/maximise_cling & mirror_logs_require_separate_pvs to lvm.conf.
 444   Adapt metadata balancing code to work with metadata handling changes.
 445   Add old_id field to physical_volume and fix pvchange -u for recent changes.
 446   Allow pvresize on a PV with two metadata areas.
 447   Change pvcreate to use new metadata handling interface.
 448   Restructure existing pv_setup and pv_write and add pv_initialise.
 449   Add internal interface to support adding and removing metadata areas.
 450   Allow internal indexing of metadata areas (PV id + mda order).
 451   Generalise internal format_instance infrastrusture for PV and VG use.
 452   Handle decimal digits with --units instead of ignoring them silently.
 453   Fix remaining warnings and compile with -Wpointer-arith.
 454   Fix gcc warnings for unused variables and const casts.
 455   Add stack backtraces for error paths in process_each_lv().
 456   Temporarily suppress error from calling yes_no_prompt while locks are held.
 457   Replace void* with char* arithmetic in _text_write, _text_read & send_message.
 458   Fix compilation without DEVMAPPER_SUPPORT.
 459   Remove fs_unlock() from lv_suspend error path.
 460   Allow memory to stay locked between leaving and re-entering critical sections.
 461   Rename memlock to critical_section throughout.
 462   Make pv_min_size configurable and increase to 2048KB to exclude floppy drives.
 463   Add find_config_tree_int64 to read 64-bit ints from config.
 464   Ensure resuming exclusive cluster mirror continues to use local mirror target.
 465   Clear temporary postorder LV status flags to allow re-use with same LV struct.
 466   Remove invalid snapshot umount mesg which floods syslog from dmeventd plugin.
 467   Add extended examples to pvmove man page.
 468   Support LVM_TEST_DEVDIR env var for private /dev during testing.
 469
 470 Version 2.02.84 - 9th February 2011
 471 ===================================
 472   Fix CRC32 calculation on big endian CPU (2.02.75).
 473
 474 Version 2.02.83 - 4th February 2011
 475 ===================================
 476   Allow exclusive activation of snapshots in a cluster.
 477   Leave EX lock unchanged when suspending a device in clvmd.
 478   Use sync_dev_names in unlock_vg macro for cluster-wide dev name sync.
 479   Fix fs operation stack handling when multiple operations on same device.
 480   Increase hash table size to 1024 lv names and 64 pv uuids.
 481   Remove fs_unlock() from lv_resume path.
 482   Fix wipe size when setting up mda.
 483   Remove unneeded checks for open_count in lv_info().
 484   Synchronize with udev before checking open_count in lv_info().
 485   Allow CLVMD_CMD_SYNC_NAMES to be propagated around the cluster if requested.
 486   Add "dmsetup ls --tree" output to lvmdump.
 487   Fix udev synchronization with no-locking --sysinit (2.02.80).
 488   Improve man page style consistency for pvcreate, pvremove, pvresize, pvscan.
 489   Avoid rebuilding of uuid validation table.
 490   Improve lvcreate error text from insufficient "extents" to "free space".
 491   Always use O_DIRECT when opening block devices to check for partitioning.
 492
 493 Version 2.02.82 - 24th January 2011
 494 ===================================
 495   Bring lvscan man page up-to-date.
 496   Fix lvchange --test to exit cleanly.
 497   Add change_tag to toollib.
 498   Allow multiple pvchange command line options to be specified together.
 499   Do not fail pvmove polling if another process cleaned up first.
 500   Avoid clvmd incrementing dlm lockspace reference count more than once.
 501   Add -f (don't fork) option to clvmd and fix clvmd -d<num> description.
 502
 503 Version 2.02.81 - 17th January 2011
 504 ===================================
 505   Do not scan devices in dev_reset_error_count().
 506   Skip unnecessary LOCK_NULL unlock call during volume deactivation.
 507   Skip fs_unlock when calling exec_cmd within activation code (for modprobe).
 508   Extend exec_cmd params to specify when device sync (fs_unlock) is needed.
 509   Replace fs_unlock by sync_local_dev_names to notify local clvmd. (2.02.80)
 510   Introduce sync_local_dev_names and CLVMD_CMD_SYNC_NAMES to issue fs_unlock.
 511   Accept fusion fio in device type filter.
 512   Add ability to convert mirror log type from disk to mirrored.
 513
 514 Version 2.02.80 - 10th January 2011
 515 ===================================
 516   Use same dm cookie for consecutive dm ops in same VG to reduce udev waits.
 517   Speed up command processing by caching resolved config tree.
 518   Pass config_tree to renamed function import_vg_from_config_tree().
 519   Detect NULL handle in get_property().
 520   Fix superfluous /usr in ocf_scriptdir instalation path.
 521   Add --with-ocfdir configurable option.
 522   Add aclocal.m4 (for pkgconfig).
 523   Fix memory leak in persistent filter creation error path.
 524   Check for errors setting up dm_task struct in _setup_task().
 525   Fail polldaemon creation when lvmcache_init() fails.
 526   Return PERCENT_INVALID for errors in _copy_percent() and _snap_percent().
 527   Remove some unused variables.
 528   Improve general lvconvert man page description.
 529   Return 0 from cmirrord initscript 'start' if daemon is already running.
 530   Fix wrongly paired unlocking of VG_GLOBAL in pvchange. (2.02.66)
 531   Add backtraces for backup and backup_remove fail paths.
 532   Detect errors from dm_task_set calls in _get_device_info (dmeventd).
 533   Add backtraces for archive and backup_locally in check_current_backup().
 534   Fix memory leak in debug mode of restart_clvmd() error path.
 535   Log error message for pthread_join() failure in clvmd.
 536
 537 Version 2.02.79 - 20th December 2010
 538 ====================================
 539   Remove some unused variables.
 540   Add missing test for reallocation error in _find_parallel_space().
 541   Add checks for allocation errors in config node cloning.
 542   Fix error path if regex engine cannot be created in _build_matcher().
 543   Use char* arithmetic in target_version(), _process_all() & _targets().
 544   Fixing const cast gcc warnings in the code.
 545   Check read() and close() results in _get_cmdline().
 546   Add const for struct config_node usage.
 547   Fix NULL pointer check in error path in clvmd do_command(). (2.02.78)
 548   Fix device.c #include to ensure 64-bit fopen64 use. (2.02.51)
 549   Add copy_percent and snap_percent to liblvm.
 550   Enhance vg_validate to ensure integrity of LV and PV structs referenced.
 551   Enhance vg_validate to check composition of pvmove LVs.
 552   Create /var/run/lvm directory during clvmd initialisation if missing.
 553   Use new dm_prepare_selinux_context instead of dm_set_selinux_context.
 554   Avoid revalidating the label cache immediately after scanning.
 555   Support scanning for a single VG in independent mdas.
 556   Don't skip full scan when independent mdas are present even if memlock is set.
 557   Set cmd->independent_metadata_areas if metadata/dirs or disk_areas in use.
 558   Cope better with an undefined target_percent operation in _percent_run.
 559   Avoid writing to freed memory in vg_release and rename to free_vg.  (2.02.78)
 560
 561 Version 2.02.78 - 6th December 2010
 562 ===================================
 563   Abort if segment tag allocation fails in pool format _add_stripe_seg.
 564   Abort in _mirrored_transient_status if referenced log/image LV is not active.
 565   Add backtraces for dev_set() and dev_close_immediate() errors in set_lv().
 566   Log any unlink() error in clvmd remove_lockfile().
 567   Log any pipe write() or close() errors in clvmd child_init_signal().
 568   Detect if orphan vginfo was lost from cache before _lvmcache_update_vgname().
 569   Do a full rescan if some device is missing in lvm1 format read_pvs_in_vg.
 570   Add missing check that dm_pool_create succeeded in write_config_node().
 571   Use dm_snprintf in clvmd-command.c to ensure an overlong buffer is truncated.
 572   Don't write to buffer if its reallocation failed in clvmd do_command().
 573   Switch from float to fixed point percentage handling.
 574   Avoid misleading missing PV warnings in vgextend --restoremissing.
 575   Fix memory leak when VG allocation policy in metadata is invalid.
 576   Ignore unrecognised allocation policy found in metadata instead of aborting.
 577   Factor out tag printing into _out_tags and avoid leaking string buffer.
 578   Remove some unused variables & assignments.
 579   Add missing vg_release calls in _vg_read_by_vgid.
 580   Fix debug logging of derived flag LCK_CACHE in clvmd.
 581   Fix test for no system_dir in _init_backup().
 582   Disallow lvconvert ops that both allocate & free supplied PEs in a single cmd.
 583   Fix liblvm seg_size to give bytes not sectors.
 584   Add functions to look up LV/PV by name/uuid to liblvm.
 585   Free cmd_context if fallback to LVM1 fails in lvm2_main().
 586   Free device name buffer in dmsetup parse_loop_device_name() error paths.
 587   Close format lib if init_format_fn fails in _init_formats().
 588   Don't leave /proc/mounts open after dmeventd snapshot event processing.
 589   Fix out-of-scope arg_vgnames use in process_each_lv().
 590   Remove incorrect dm_task_destroy(NULL) from _node_clear_table() error path.
 591   Add missing closedir in _rm_blks after removing stray LVM1 VG files.
 592   Suppress 'No PV label' message when removing several PVs without mdas.
 593   Fix default /etc/lvm permissions to be 0755. (2.02.66)
 594
 595 Version 2.02.77 - 22nd November 2010
 596 ====================================
 597   Allocate a pool for dummy VG in _pvsegs_sub_single.
 598   Add PV and LV segment types and functions to liblvm.
 599   Add set_property functions to liblvm.
 600   Remove tag length restriction and allow / = ! : # & characters.
 601   Support repetition of --addtag and --deltag arguments.
 602   Add infrastructure for specific cmdline arguments to be repeated in groups.
 603   Split the_args cmdline arguments and values into arg_props and arg_values.
 604   Fix fsadm no longer to require '-f' to resize an unmounted filesystem.
 605   Fix fsadm to detect mounted filesystems on older systems. (2.0.75)
 606   Extend cling allocation policy to recognise PV tags (cling_by_tags).
 607   Add allocation/cling_tag_list to lvm.conf.
 608   Regenerate configure with 'autoreconf' for --enable-ocf. (2.02.76)
 609
 610 Version 2.02.76 - 8th November 2010
 611 ===================================
 612   Clarify error messages when activation fails due to activation filter use.
 613   Add pacemaker script VolumeGroup.ocf with configure --enable-ocf.
 614   Import make.tmpl into include/ Makefile.
 615   Fix handling of online filesystem resize (using new fsadm return code).
 616   Add DIAGNOSTICS section to fsadm man page.
 617   Modify fsadm to return different status code for check of mounted filesystem.
 618   Update VG metadata only once in vgchange when making multiple changes.
 619   Allow independent vgchange arguments to be used together.
 620   Automatically unmount invalidated snapshots in dmeventd.
 621   Suppress some superfluous messages from clang static analysis.
 622   Fix a deadlock caused by double close in clvmd.
 623   Fix NULL pointer dereference on too-large MDA error path in _vg_read_raw_area.
 624   Use static for internal _align_chunk() and _new_chunk() from pool-fast.c.
 625   Fix vgchange to process -a, --refresh, --monitor and --poll like lvchange.
 626   Add lvm2app functions to query any pv, vg, or lv property / report field.
 627
 628 Version 2.02.75 - 25th October 2010
 629 ===================================
 630   Annotate more variables and parameters as const.
 631   Fix missing variable initialization in cluster_send() function from cmirrord.
 632   Fix pointer for VG name in _pv_resize_single error code path.
 633   Fix warning for changed alignment requirements for dmeventd read/write func.
 634   Add global/metadata_read_only to use unrepaired metadata in read-only cmds.
 635   Don't take write lock in vgchange --refresh, --poll or --monitor.
 636   Skip dm devices in scan if they contain only error targets or are empty.
 637   Fix strict-aliasing compile warning in partition table scanning.
 638   Fix pthread mutex usage deadlock in clvmd.
 639   Automatically extend snapshots with dmeventd according to policy in lvm.conf.
 640   Add activation/snapshot_autoextend_threshold/percent to lvm.conf.
 641   Fix liblvm2cmd link order to support --as-needed.
 642   Remove dependency on libm by replacing floor() by an integer-based algorithm.
 643   Fix hang when repairing a mirrored-log that had both devs fail.
 644   Convey need for snapshot-merge target in lvconvert error message and man page.
 645   Add devices/disable_after_error_count config to limit access to failing devs.
 646   Give correct error message when creating a too-small snapshot.
 647   Implement vgextend --restoremissing to reinstate missing devs that return.
 648   Make lvconvert respect --yes and --force when converting an inactive log.
 649   Refactor and add 'get' functions for lv properties/fields.
 650   Update script for fsadm testing.
 651   Better support of noninteractive shell execution of fsadm.
 652   Fix usage of --yes flag for ReiserFS resize in fsadm.
 653   Fix detection of mounted filesystems for fsadm when udev is used.
 654   Fix assignment of default value to LVM variable in fsadm.
 655   Fix support for --yes flag for fsadm.
 656   Do not execute lvresize from fsadm --dry-run.
 657   Fix fsadm return error code from user's break action.
 658   Allow CC to be overridden at build time (for 'scan-build make').
 659   Rename 'flags' to 'status' in struct metadata_area.
 660   Avoid segfault by limiting partial mode for lvm1 metadata. (2.02.74)
 661   Use dm_zalloc and dm_pool_zalloc throughout.
 662   Add pv_get_property and create generic internal _get_property function.
 663   Add 'get' functions for pv and vg properties/fields.
 664   Make generic GET_*_PROPERTY_FN macros with secondary macro for vg, pv & lv.
 665   Add tags_format_and_copy() common function and call from _tags_disp.
 666   Add id_format_and_copy() common function and call from _uuid_disp.
 667   Refactor report.c '*_disp' functions to call supporting functions.
 668   Move parts of metadata*.[ch] into new {pv|vg|lv}.[ch] files.
 669   Fix vg_read memory leak with directory-based metadata.
 670   Fix memory leak of config_tree in reinitialization code path.
 671   Fix pool destruction order in dmeventd_lvm2_exit() to avoid leak debug mesg.
 672   Read whole /proc/self/maps file before working with maps entries.
 673   Speed up unquoting of quoted double quotes and backslashes.
 674   Speed up CRC32 calculations by using a larger lookup table.
 675
 676 Version 2.02.74 - 24th September 2010
 677 =====================================
 678   Allow : and @ to be escaped with \ in device names of PVs.
 679   Replace alloca with dm_malloc in _aligned_io to avoid stack corruption.
 680   Fix partial mode operations for lvm1 metadata format.
 681   Track recursive filter iteration to avoid refreshing while in use. (2.02.56)
 682   Revert to old glibc vsnprintf behaviour in emit_to_buffer() to catch overflow.
 683   Allocate buffer for metadata tags dynamically to remove 4k limit.
 684   Add random suffix to archive file names to prevent races when being created.
 685   Reinitialize archive and backup handling on toolcontext refresh.
 686   Make poll_mirror_progress report PROGRESS_CHECK_FAILED if LV is not a mirror.
 687   Like mirrors, don't scan origins if ignore_suspended_devices() is set.
 688   Fix return type qualifier to avoid compiler warning. (2.02.69)
 689   Automatically generate LSB Requires-Start for clvmd init script.
 690   Fix return code of pvmove --abort PV.
 691   Fix pvmove --abort to remove even for empty pvmove LV.
 692   Add configure --with-default-data-alignment.
 693   Update heuristic used for default and detected data alignment.
 694   Add "devices/default_data_alignment" to lvm.conf.
 695   Add implementation for simple numeric 'get' property functions.
 696   Define GET_NUM_PROPERTY_FN macro to simplify numeric property 'get' function
 697   Add properties.[ch] to lib/report using columns.h.
 698   Add macro definitions to report infrastructure for character array length.
 699   Remove explicit double quotes from columns.h 'id' entries.
 700   Add 'flags' field to columns.h and define FIELD_MODIFIABLE.
 701   Add vg_mda_size and vg_mda_free functions.
 702   Simplify MD/swap signature detection in pvcreate and allow aborting.
 703   Allow --yes to be used without --force mode.
 704   Fix file descriptor leak in swap signature detection error path.
 705   Detect and allow abort in pvcreate if LUKS signature is detected.
 706   Always mask lock flags correctly when checking for LCK_WRITE.
 707
 708 Version 2.02.73 - 18th August 2010
 709 ==================================
 710   Fix potential for corruption during cluster mirror device failure.
 711   Use 'SINGLENODE' instead of 'dead' in clvmd singlenode messages.
 712   Ignore snapshots when performing mirror recovery beneath an origin.
 713   Pass LCK_ORIGIN_ONLY flag around cluster.
 714   Add suspend_lv_origin and resume_lv_origin using LCK_ORIGIN_ONLY.
 715   Allow internal suspend and resume of origin without its snapshots.
 716   Fix dev_manager_transient to access -real device not snapshot-origin.
 717   Monitor origin -real device below snapshot instead of overlay device.
 718   Don't really change monitoring status when in test mode.
 719   Fix some exit statuses when starting/stopping monitoring fails.
 720   Enable snapshot monitoring by default when dmeventd is enabled.
 721   Move cloned libdevmapper-event client code from segments into lib/activate.
 722   Fix 'lvconvert --splitmirrors' in cluster operation.
 723   Fix clvmd init script exit code to return 4 when executed as non-root user.
 724   Change default alignment of pe_start to 1MB.
 725   Add --norestorefile option to pvcreate.
 726   Require --restorefile when using pvcreate --uuid.
 727   Recognise and give preference to md device partitions (blkext major).
 728   Never scan internal LVM devices.
 729   Don't ignore user-specified PVs in split-mirror operations. (2.02.71)
 730   Fix data corruption bug in cluster mirrors.
 731   Require logical volume(s) to be explicitly named for lvconvert --merge.
 732   Avoid changing aligned pe_start as a side-effect of very verbose logging.
 733   Use built-in rule for device aliases: block/ < dm- < disk/ < mapper/ < other.
 734   Fix const warning in dev_manager_info() and _dev_manager_lv_rmnodes().
 735   Fix const warning in archive_file structure from archive.c.
 736   Clean generated files .exported_symbols_generated, example.conf for distclean.
 737   Handle failure of all mirrored log devices and all but one mirror leg.
 738   Disallow 'mirrored' log type for cluster mirrors.
 739   Do not use VPATH in include/Makefile.
 740   Fix exported_symbols generation to use standard compiler arguments.
 741   Use #include <> not "" in lvm2app.h which gets installed on the system.
 742   Make lib and liblvm.device-mapper wait for include file generation.
 743   Fix configure to supply DEFAULT_RUN_DIR to Makefiles.
 744   Fix allocation of wrong number of mirror logs with 'remove' fault policy.
 745
 746 Version 2.02.72 - 28th July 2010  [CVE-2010-2526]
 747 =================================================
 748   Change clvmd to communicate with lvm2 via a socket in /var/run/lvm.
 749   Return controlled error if clvmd is run by non-root user.
 750   Add configure --default-run-dir for /var/run/lvm.
 751   Never use clvmd singlenode unless explicitly requested with -Isinglenode.
 752
 753 Version 2.02.71 - 28th July 2010
 754 ================================
 755   Document LVM fault handling in doc/lvm_fault_handling.txt.
 756   Make vgck warn about missing PVs.
 757   Clarify help text for vg_mda_count.
 758   Check if cluster log daemon is running before allowing cmirror create.
 759   Add unit-tests dir.
 760   Add configure --enable-testing and reports and report-generators dirs.
 761   Correct LV list order used by lvconvert when splitting a mirror.
 762   Check if LV with specified name already exists when splitting a mirror.
 763   Fix suspend/resume logic for LVs resulting from splitting a mirror.
 764   Update pvcreate, {pv|vg}change, and lvm.conf man pages about metadataignore.
 765   Switch cmirrord and clvmd to use dm_create_lockfile.
 766   Allow clvmd pidfile to be configurable.
 767   Update comments about memory handling in lvm2app.h.
 768   Add more verbose messages while checking volume_list and hosttags settings.
 769   Add log_error when strdup fails in {vg|lv}_change_tag().
 770   Remove unnecessary includes in liblvm files.
 771   Use __attribute__ consistently throughout.
 772   Fix redundant declarations and always compile with -Wredundant-decls.
 773   Fix possible hang when all mirror images of a mirrored log fail.
 774   Pass metadataignore to pv_create, pv_setup, _mda_setup, and add_mda.
 775   Init mda->list in mda_copy.
 776   Do not log backtrace in valid _lv_resume() code path.
 777   Cleanup help strings in configure.in.
 778   Prompt if metadataignore with vgextend or pvchange would adjust vg_mda_copies.
 779   Adjust vg_mda_copies if metadataignore given with vgextend or pvchange.
 780   Adjust auto-metadata repair and caching logic to try to cope with empty mdas.
 781
 782 Version 2.02.70 - 6th July 2010
 783 ===============================
 784   Remove log directly if all mirror images of a mirrored log fail.
 785   Randomly select which mdas to use or ignore.
 786   Add some missing standard configure.in checks.
 787   Add printf format attributes to yes_no_prompt and fix a caller.
 788   Always pass unsuspended dm devices through persistent filter to other filters.
 789   Move test for suspended dm devices ahead of other filters.
 790   Fix another segfault in clvmd -R if no response from daemon. (2.02.68)
 791   Remove superfluous suspended device counter from clvmd.
 792   Fix lvm shell crash when input is entirely whitespace.
 793   Update partial mode warning message.
 794   Preserve memlock balance in clvmd when activation triggers a resume.
 795   Restore the removemissing behaviour of lvconvert --repair --use-policies.
 796
 797 Version 2.02.69 - 30th June 2010
 798 ================================
 799   Fix vgremove to allow removal of VG with missing PVs. (2.02.52)
 800   Add metadata/vgmetadatacopies to lvm.conf.
 801   Add --metadataignore to pvcreate and vgextend.
 802   Add vg_mda_copies, pv_mda_used_count and vg_mda_used_count to reports.
 803   Describe --vgmetadatacopies in lvm.conf and other man pages.
 804   Add --[vg]metadatacopies to select number of mdas to use in a VG.
 805   Make the metadata ignore bit control read/write metadata areas in a PV.
 806   Add pvchange --metadataignore to set or clear a metadata ignore bit.
 807   Refactor metadata code to prepare for --metadataignore / --vgmetadatacopies.
 808   Ensure region_size of mirrored log does not exceed its full size.
 809   Generate liblvm2app exported symbols from header file.
 810   Preload libc locale messages to prevent reading it in memory locked state.
 811   Fix handling of simultaneous mirror image and mirrored log image failure.
 812
 813 Version 2.02.68 - 23rd June 2010
 814 ================================
 815   Fix clvmd initscript status to print only active clustered LVs.
 816   Add lv_path to reports to offer full /dev pathname.
 817   Fix typo in warning message about missing device with allocated data areas.
 818   Add device name and offset to raw_read_mda_header error messages.
 819   Honour log argument when down-converting stacked mirror.
 820   Sleep to workaround clvmd -S race: socket closed early and server drops cmd.
 821   Use early udev synchronisation and update of dev nodes for clustered mirrors.
 822   Remove incorrect inclusion of kdev_t.h from cmirrord/functions.h.
 823   Add man pages for lvmconf and non-existent lvmsadc and lvmsar tools.
 824   Exit successfully when using -o help (but not -o +help) with LVM reports.
 825   Do not use internal DLM lock definitions in generic LVM2 clvmd code.
 826   Add --force, --nofsck and --resizefs to lvresize/extend/reduce man pages.
 827   Fix lvm2cmd example in documentation.
 828   Allow use of lvm2app and lvm2cmd headers in C++ code.
 829   Remove unused #includes from clvmd files and introduce clvmd-common.h.
 830   Move common inclusions to clvmd-common.h.
 831   Use #include "" for libdevmapper.h and configure.h throughout tree.
 832   Fix LVM_PATH expansion when exec_prefix=NONE. (2.02.67)
 833   Fix segfault in clvmd -R if no response from daemon received.
 834
 835 Version 2.02.67 - 4th June 2010
 836 ===============================
 837   Handle failed restart of clvmd using -S switch properly.
 838   Fix clvmd initscript restart command to start clvmd if not yet running.
 839   Use built-in absolute paths in clvmd (clvmd restart and PV and LV queries).
 840   Require partial option in lvchange --refresh for partial LVs.
 841   Do not fail lvm_init() if init_logging() or _init_rand() generates an errno.
 842   Don't merge unchanged persistent cache file before dumping if tool scanned.
 843   Fix incorrect memory pool deallocation while using vg_read for files.
 844   Add --type parameter description to the lvcreate man page.
 845   Replace strncmp kernel version number checks with proper ones.
 846   Avoid selecting names under /dev/block if there is an alternative.
 847   Update clustered log kernel module name to log-userspace for 2.6.31 onwards.
 848   Add replicators' LVs to dtree for activation.
 849   Supress activation message if there is a missing replicator VG.
 850   Fix scripts/relpath.awk to work in mawk
 851   Extend lock_vol to check for missing replicator VGs first.
 852   Update _process_one_vg and process_each_lv_in_vg to populate cmd_vg.
 853   Add cmd_vg structure and associated functions for replicator.
 854   Extend _lv_each_dependency() to handle replicator dependencies.
 855   Add check_replicator_segment() to catch internal replicator errors.
 856   Initial support for replicator metadata.
 857   Extend process_each_lv_in_vg() to provide list of failed lvnames.
 858   Consistently return ECMD_FAILED if process_each_*lv() is interrupted.
 859
 860 Version 2.02.66 - 20th May 2010
 861 ===============================
 862   If unable to obtain snapshot percentage leave value blank on reports.
 863   Add install_system_dirs and install_initscripts makefile targets.
 864   Add configure options for system and locking directories.
 865   Generate example.conf so default lvm.conf contents can be configured.
 866   Install lvmconf script by default.
 867   Remove unnecessary versioned dmeventd plugin symlinks.
 868   Add tests for lvm_vgname_from_{pvid|device}.
 869   Add lvm2app interfaces to lookup a vgname from a pvid and pvname.
 870   Update pvchange to always obtain a vg handle for each pv to process.
 871   Add find_vgname_from_{pvname|pvid} functions.
 872   Add pvid_from_devname and lvmcache_vgname_from_pvid lvmcache functions.
 873   Validate orphan and VG_GLOBAL lock order too.
 874   Accept orphan VG names as parameters to lock_vol() and related functions.
 875   Use is_orphan_vg in place of hard-coded prefix tests and add is_global_vg.
 876
 877 Version 2.02.65 - 17th May 2010
 878 ===============================
 879   Fix clvmd init script never to deactivate non-clustered volume groups.
 880   Disallow vgchange --clustered if there are active mirrors or snapshots.
 881   Introduce lv_is_mirrored.
 882   Use /bin/bash for scripts with bashisms.
 883   Skip internal lvm devices in scan if ignore_suspended_devices is set.
 884   Do not merge old device cache after we run full scan. (2.02.56)
 885   Add pkgconfigdir Makefile variable for make install override.
 886   Configure pkgconfig udev and selinux dependencies.
 887   Switch Libs.private to Requires.private in devmapper.pc and lvm2app.pc.
 888   Use pkgconfig Requires.private for devmapper-event.pc.
 889   Add libdevmapper to linked libdevmapper-event.so.
 890   Link liblvm2cmd.so with libdevmapper-event and libdevmapper.
 891   Fix truncated total size displayed by pvscan.
 892   Add new --sysinit compound option to vgchange and lvchange.
 893   Drop duplicate errors for read failures and missing devices to verbose level.
 894   Use $(libdir)/lvm2 with make install_lvm2_plugin.
 895   Use $(libdir)/device-mapper with make install_dm_plugin.
 896   Add dm_list_splice() function to join two lists together.
 897
 898 Version 2.02.64 - 30th April 2010
 899 =================================
 900   Avoid pointless initialisation when the 'version' command is run directly.
 901   Fix memory leak for invalid regex pattern input.
 902   Display invalid regex pattern for filter configuration in case of error.
 903   Remove no-longer-used arg_ptr_value.
 904   Fix -M and --type to use strings, not pointers that change on config refresh.
 905   Fix lvconvert error message when existing mirrored LV is not found.
 906   Set appropriate udev flags for reserved LVs.
 907   Disallow the direct removal of a merging snapshot.
 908   Don't preload the origin when removing a snapshot whose merge is pending.
 909   Disallow the addition of mirror images while a conversion is happening.
 910   Disallow primary mirror image removal when mirror is not in-sync.
 911   Remove obsolete --name parameter from vgcfgrestore.
 912   Add -S command to clvmd to restart the daemon preserving exclusive locks.
 913   Increment lvm2app version from 1 to 2 (memory allocation changes).
 914   Change lvm2app memory alloc/free for pv/vg/lv properties.
 915   Change daemon lock filename from lvm2_monitor to lvm2-monitor for consistency.
 916   Install symbolic .so links with relative paths between usrlibdir and libdir.
 917   Add awk script relpath.awk to calculate paths for relative symlinks.
 918   Use @AWK@ in makefiles.
 919   Fix double DESTDIR usage for infodir and mandir.
 920
 921 Version 2.02.63 - 14th April 2010
 922 =================================
 923   Rename lvm_dump.sh to lvmdump.sh.
 924   Allow incomplete mirror restore in lvconvert --repair upon insufficient space.
 925   Do not reset position in metadata ring buffer on vgrename and vgcfgrestore.
 926   Allow VGs with active LVs to be renamed.
 927   Use UUIDs instead of names while processing event handlers.
 928   Only pass visible LVs to tools in cmdline VG name/tag expansions without -a.
 929   Use typedefs for toollib process_each functions.
 930   Use C locales and use_mlockall for clvmd.
 931   Refactor code related to vg->pvs list and add pv->vg link.
 932   Mask LCK_HOLD flag in cluster VG locks for backwards compatibility.
 933   Add activation/polling_interval to lvm.conf as --interval default.
 934   Don't ignore error if resuming any LV fails in resume_lvs.
 935   Skip closing persistent filter cache file if open failed.
 936   Install .a and .so links into $(usrlibdir).
 937   Add --enable-write_install options to install user-writable files.
 938   Use INSTALL_PROGRAM/DATA/WDATA target.
 939   Switch from using VPATH  to vpath in Makefiles.
 940   Permit mimage LVs to be striped in lvcreate, lvresize and lvconvert.
 941   Fix pvmove allocation to take existing parallel stripes into account.
 942   Add pvmove_source_seg to struct lv_segment.
 943   Fix incorrect removal of symlinks after LV deactivation fails.
 944   Fix is_partitioned_dev not to attempt to reopen device.
 945   Fix another thread race in clvmd.
 946   Refactor management of vg->pvs list.
 947   Fix lcov rules and generate better coverage report.
 948   Improve vg_validate to detect some loops in lists.
 949   Change most remaining log_error WARNING messages to log_warn.
 950   Always use blocking lock for VGs and orphan locks.
 951   Allocate all memory for segments from private VG mempool.
 952   Return newly allocated PV segment after segment split.
 953   Optimise searching PV segments for seeking the most recently-added.
 954   Remove vg_validate call when parsing cached metadata.
 955   Use hash table of LVs to speed up parsing of text metadata with many LVs.
 956   Fix two vg_validate messages, adding whitespace and parentheses.
 957   When dmeventd is not forking because of -d flag, don't kill parent process.
 958   Fix 'make install' when $(builddir) is different from $(srcdir).
 959   Fix dso resource leak in error path of dmeventd.
 960   Use C locales and use_mlockall for dmeventd.
 961   Fix --alloc contiguous policy only to allocate one set of parallel areas.
 962   Do not allow {vg|lv}change --ignoremonitoring if on clustered VG.
 963   Improved dependency tracking for dmeventd and liblvm2cmd sources.
 964   Improved Makefile rules for distclean and cflow targets.
 965   Add ability to create mirrored logs for mirror LVs.
 966   Fix clvmd cluster propagation of dmeventd monitoring mode.
 967   Allow ALLOC_ANYWHERE to split contiguous areas.
 968   Use INTERNAL_ERROR for internal errors throughout tree.
 969   Add some assertions to allocation code.
 970   Introduce pv_area_used into allocation algorithm and add debug messages.
 971   Add activation/monitoring to lvm.conf.
 972   Add --monitor and --ignoremonitoring to lvcreate.
 973   Allow dynamic extension of array of areas selected as allocation candidates.
 974   Export and use only valid cookie value in test suite.
 975   Remove const modifier for struct volume_group* from process_each_lv_in_vg().
 976   Don't allow resizing of internal logical volumes.
 977   Fix libdevmapper-event pkgconfig version string to match libdevmapper.
 978   Avoid scanning all pvs in the system if operating on a device with mdas.
 979   Add configure --with-clvmd=singlenode to use clvmd w/o cluster infrastructure.
 980   Get stacktrace if testsuite test drops core and lvm was built with debugging.
 981   Disable long living process flag in lvm2app.
 982   Fix pvcreate device md filter check.
 983   Suppress repeated errors about the same missing PV uuids.
 984   Bypass full device scans when using internally-cached VG metadata.
 985   Only do one full device scan during each read of text format metadata.
 986   Remove unnecessary full_scan parameter from get_vgids and get_vgnames calls.
 987   Look up missing PVs by uuid not dev_name in _pvs_single to avoid invalid stat.
 988   Make find_pv_in_vg_by_uuid() return same type as related functions.
 989   Introduce is_missing_pv().
 990   Fix clvmd Makefile to not overwrite LIBS from template definition.
 991
 992 Version 2.02.62 - 9th March 2010
 993 ================================
 994   Add use_mlockall and mlock_filter to activation section of lvm.conf.
 995   Add default alternative to mlockall using mlock to reduce pinned memory size.
 996   Remove -rdynamic from static builds.
 997   Update checks for pthread, readline & selinux libs and link only when needed.
 998   Introduce makefile vars UDEV_LIBS, DL_LIBS, SELINUX_LIBS, STATIC_LIBS.
 999   Introduce makefile vars LVMINTERNAL_LIBS, READLINE_LIBS, PTHREAD_LIBS.
1000   Toggle configure help to print --disable-fsadm.
1001   Use $() instead of ${} consistently for all Makefile variables.
1002   Replace CFLOW_CMD only in make.tmpl and use it as variable elsewhere.
1003   Use $(top_builddir) for inclusion of make.tmpl in Makefiles.
1004   Fix autoconf warning about ignored datarootdir.
1005   Increase AC_PREREQ version to 2.61 (for AC_PROC_SED, AC_PROG_MKDIR_P).
1006   Handle misaligned devices that report alignment_offset of -1.
1007   Extend core allocation code in preparation for mirrored log areas.
1008   Rewrite clvmd init script.
1009   Remove lvs_in_vg_activated_by_uuid_only call.
1010   No longer fall back to looking up active devices by name if uuid not found.
1011   Don't touch /dev in vgmknodes if activation is disabled.
1012   Update lvm2app.h Doxygen comments and add lvm2app Doxygen config file.
1013   Update nightly tests and lvm2app unit tests to cover tags.
1014   Add lvm2app functions lvm_{vg|lv}_{get|add|remove}_tag() functions.
1015   Add dm_pool_strdup to allocate and copy memory in tag library function.
1016   Refactor vgcreate, vgchange, and lvchange for tag library function.
1017   Refactor snapshot-merge deptree and device removal to support info-by-uuid.
1018
1019 Version 2.02.61 - 15th February 2010
1020 ====================================
1021   Fix some consts and floating point gcc warnings.
1022   Fix dm_report_field_uint64 function to accept 64-bit ints.
1023   Change readhead display to use 32-bit -1 const instead of 64-bit.
1024   Add LVM_SUPPRESS_LOCKING_FAILURE_MESSAGES environment variable.
1025   Remove hard-coding that skipped _mimage devices from 11-dm-lvm.rules.
1026   Use udev transactions in test suite.
1027   Set udev state automatically instead of using LVM_UDEV_DISABLE_CHECKING.
1028   Add lvm_pv_get_size, lvm_pv_get_free and lvm_pv_get_dev_size to lvm2app.
1029   Change lvm2app to return all sizes in bytes as documented (not sectors).
1030   Add 'fail_if_percent_unsupported' arg to _percent and _percent_run.
1031   Remove false "failed to find tree node" error when activating merging origin.
1032   Exit with success when lvconvert --repair --use-policies performs no action.
1033   Accept a list of LVs with 'lvconvert --merge @tag' using process_each_lv.
1034   Avoid unnecessary second resync when adding mimage to core-logged mirror.
1035   Exclude internal VG names and uuids from lists returned through lvm2app.
1036   Add %ORIGIN support to lv{create,extend,reduce,resize} --extents.
1037   Add _mda_copy to clone a struct metadata_area.
1038   Remove pointless versioned symlinks to dmeventd plugin libraries.
1039   Fix dmeventd snapshot plugin build dependency.
1040   Make clvmd -V return status zero.
1041   Remove unnecessary 'dmsetup resume' following 'dmsetup create' in tests.
1042   Fix cmirrord segfault in clog_cpg list processing when converting mirror log.
1043   Deactivate temporary pvmove mirror cluster-wide when activating it fails.
1044   Always query device by uuid and not name in clvmd.
1045   Add missing metadata vg_reverts in pvmove error paths.
1046   Unlock shared lock in clvmd if activation calls fail.
1047   Return success from dev_manager_info with non-existent uuid if ioctl succeeds.
1048
1049 Version 2.02.60 - 23rd January 2010
1050 ===================================
1051   Extend cmirrord man page.
1052   Sleep before first progress check if pvmove/lvconvert interval has prefix '+'.
1053   Default to checking progress before waiting in _wait_for_single_lv.
1054   Fix cmirror initscript (including syntax error).
1055   Eliminate avoidable ioctls for checking open_count in _add_new_lv_to_dtree.
1056   Disable memory debugging if dmeventd is configured. (Not thread-safe.)
1057   Fix first log message prefix in syslog for dmeventd plugins.
1058   Fix exported symbols names for dmeventd lvm2 wrapper plugin.
1059   Make failed locking initialisation messages more descriptive.
1060
1061 Version 2.02.59 - 21st January 2010
1062 ===================================
1063   Add libdevmapper-event-lvm2.so to serialise dmeventd plugin liblvm2cmd use.
1064   Cleanup memory initialization and freeing in pv_read() and pv_create().
1065   Clear pointer and counters after their release in _fin_commands().
1066   Stop dmeventd trying to access already-removed snapshots.
1067   Remove (fallback) /dev mknod from cmirrord.
1068   Add t-topology-support.sh and t-snapshot-merge.sh tests.
1069   Fix clvmd to never scan suspended devices.
1070   Fix dmeventd build outside source tree.
1071   Assorted cmirror code changes to remove various compiler warnings.
1072   Fix detection of completed snapshot merge.
1073   Add Red Hat cmirror initscript (unfinished).
1074   Add cmirrord man page (incomplete).
1075   Make cluster log communication structures architecture independant.
1076   Fix cluster log in-memory bitmap handling.
1077   Improve snapshot merge metadata import validation.
1078   Improve target type compatibility checking in _percent_run().
1079   Add 'target_status_compatible' method to 'struct segtype_handler'.
1080   Change underscore to hyphen in table line for clustered log type.
1081
1082 Version 2.02.58 - 14th January 2010
1083 ===================================
1084   Cleanup some minor gcc warnings.
1085   Add --merge to lvconvert to merge a snapshot into its origin.
1086   Fix clvmd automatic target module loading crash (no reset_locking fn).
1087   Fix allocation code not to stop at the first area of a PV that fits.
1088
1089 Version 2.02.57 - 12th January 2010
1090 ===================================
1091   Ensure exactly one process returns from poll_daemon(), never two.
1092   Reset _vgs_locked in lvmcache_init() in child after forking.
1093   Define {DM, LVM}_UDEV_DISABLE_CHECKING=1 environment variables during tests.
1094   Enable udev_sync and udev_rules in lvm.conf by default while running tests.
1095   If LVM_UDEV_DISABLE_CHECKING in set in environment, disable udev warnings.
1096   Add --splitmirrors to lvconvert to split off part of a mirror.
1097   Change background polldaemon's process name to "(lvm2)".
1098   Allow vgremove to remove a VG with PVs missing after a prompt.
1099   Return success in lvconvert --repair --use-policies on failed allocation.
1100   Keep log type consistent when changing mirror image count.
1101   Always set environment variables for an LVM2 device in 11-dm-lvm.rules.
1102   Add activation/udev_rules config option in lvm.conf.
1103   Add consts to text metadata flag structs.
1104   Add macros outfc, outsize, outhint and function out_text_with_comment.
1105   Reimplement report FIELD macro using offsetof instead of static structs.
1106   Fix fsadm man page typo (fsdam).
1107   Rename mirror_device_fault_policy to mirror_image_fault policy.
1108   Remove empty PV devices if lvconvert --repair is using defined policies.
1109   Use fixed buffer to prevent stack overflow in persistent filter dump.
1110   Use extended status of new kernel snapshot target 1.8.0 to detect when empty.
1111   Insert stack macros in suspend_lv, resume_lv & (de)activate_lv callers.
1112   Add --poll flag to vgchange and lvchange to control background daemon launch.
1113   Propagate metadata commit and revert notifications to other cluster nodes.
1114   Use proper mask for VG lock mode in clvmd.
1115   Allow precommitted metadata to be dropped from lvmcache.
1116   Move processing of VG locks to separate function in clvmd.
1117   Properly decode all flags in clvmd messages including VG locks.
1118   Properly handle precommitted cache flag when only committed metadata present.
1119   Resume renamed volumes in reverse order to preserve memlock pairing.
1120   Drop cached metadata after device was auto-repaired and removed from VG.
1121   Clear MISSING_PV flag if PV reappeared and is empty.
1122   Fix removal of multiple devices from a mirror.
1123   Also clean up PVs flagged as missing in vgreduce --removemissing --force.
1124   Introduce INTERNAL_ERROR macro for error messages and use throughout.
1125   Remove superfluous returns from void functions.
1126   Destroy allocated mempool in _vg_read_orphans() error path.
1127   Fix some pvresize and toollib error paths with missing VG releases/unlocks.
1128   Explicitly call suspend for temporary mirror layer.
1129   Allow use of precommitted metadata when a PV is missing.
1130   Add memlock information to do_lock_lv debug output.
1131   Always bypass calls to remote cluster nodes for non-clustered VGs.
1132   Permit implicit cluster lock conversion in pre/post callbacks on local node.
1133   Permit implicit cluster lock conversion to the lock mode already held.
1134   Fix lock flag masking in clvmd so intended code paths get invoked.
1135   Replace magic masks in cluster locking code by defined masks.
1136   Remove newly-created mirror log from metadata if initial deactivation fails.
1137   Correct activated or deactivated text in vgchange summary message.
1138   Improve pvmove error message when all source LVs are skipped.
1139   Fix memlock imbalance in lv_suspend if already suspended.
1140   Fix pvmove test mode not to poll (and fail).
1141   Fix vgcreate error message if VG already exists.
1142   Fix tools to use log_error when aborted due to user response to prompt.
1143   Fix ignored readahead setting in lvcreate --readahead.
1144   Fix clvmd memory leak in lv_info_by_lvid by calling release_vg.
1145   If aborting due to internal error, always send that message to stderr.
1146   Add global/abort_on_internal_errors to lvm.conf to assist testing.
1147   Fix test Makefiles when builddir and srcdir differ.
1148   Impose limit of 8 mirror images to match the in-kernel kcopyd restriction.
1149   Use locking_type 3 (compiled in) for lvmconf --enable-cluster.
1150   Remove list.c and list.h with no-longer-used dm_list macros and functions.
1151   Log failure type and recognise type 'F' (flush) in dmeventd mirror plugin.
1152   Extend internal PV/VG/LV/segment status variables from 32-bit to 64-bit.
1153
1154 Version 2.02.56 - 24th November 2009
1155 ====================================
1156   Add missing vg_release to pvs and pvdisplay to fix memory leak.
1157   Do not try to unlock VG which is not locked in _process_one_vg.
1158   Move is_long_lived persistent_filter_dump to happen after every full scan.
1159   Refresh device filters before full device rescan in lvmcache.
1160   Return error status if vgchange fails to activate some volume.
1161   Fix suspend/resume lock type test causing unbalanced memory locking.
1162   Revert vg_read_internal change as clvmd was not ready for vg_read. (2.02.55)
1163
1164 Version 2.02.55 - 19th November 2009
1165 ====================================
1166   Fix deadlock when changing mirrors due to unpaired memlock refcount changes.
1167   Use separate memlock counter for dmeventd handlers to permit device scanning.
1168   Directly restrict vgchange to activating visible LVs.
1169   Fix pvmove region_size overflow for very large PVs.
1170   Fix lvcreate and lvresize %PVS argument always to use sensible total size.
1171   Tidy some uses of arg_count and introduce arg_is_set.
1172   Export outnl and indent functions for modules.
1173   Flush stdout after yes/no prompt.
1174   Update vgsplit and vgcreate to use vg_set_clustered.
1175   Add vg_mda_count and vg_set_clustered library functions.
1176   Add more vgcreate and vgsplit nightly tests.
1177   Insert some missing stack macros into activation code.
1178   Recognise DRBD devices and handle them like md devices.
1179
1180 Version 2.02.54 - 26th October 2009
1181 ===================================
1182   Update lvcreate/lvconvert man pages to explain PhysicalVolume parameter.
1183   Document --all option in man pages, cleanup {pv|vg|lv}{s|display} man pages.
1184   Permit snapshots of mirrors.
1185   Cleanup mimagetmp LV if allocation fails for new lvconvert mimage.
1186   Fix clvmd segfault when refresh_toolcontext fails.
1187   Remember to clear 'global lock held during cache refresh' state after use.
1188   Use udev flags support in LVM and apply various fixes to udev rules.
1189   Delay announcing mirror monitoring to syslog until initialisation succeeded.
1190   Handle metadata with unknown segment types more gracefully.
1191   Set default owner and group to null.
1192   Add dmeventd.static to the build.
1193   Disable realtime support code by default.
1194   Make clvmd return 0 on success rather than 1.
1195   Add --pvmetadatacopies for pvcreate, vgcreate, vgextend, vgconvert.
1196   Add implict pvcreate support to vgcreate and vgextend.
1197   Correct example.conf to indicate that lvm2 not lvm1 is the default format.
1198   Remove an unused stray LVM1_SUPPORT ifdef.
1199   Only include selinux libs in libdevmapper.pc when selinux build enabled.
1200   Allow for a build directory separate from the source.
1201   Update distclean target for rename clogd to cmirrord. (2.02.52)
1202   Only do lock conversions in clvmd if we are explicitly asked for one.
1203   Introduce percent_range_t and centralise snapshot full/mirror in-sync checks.
1204   Factor out poll_mirror_progress and introduce progress_t.
1205   Distinguish between powers of 1000 and powers of 1024 in unit suffixes.
1206   Restart lvconverts in vgchange by sharing lv_spawn_background_polling.
1207   Generalise polldaemon code by changing mirror-specific variable names.
1208   Don't attempt to deactivate an LV if any of its snapshots are in use.
1209   Return error if lv_deactivate fails to remove device from kernel.
1210   Provide alternative implementation of obsolete siginterrupt().
1211   Consolidate LV allocation into alloc_lv().
1212   Treat input units of both 's' and 'S' as 512-byte sectors.  (2.02.49)
1213   Use standard output units for 'PE Size' and 'Stripe size' in pv/lvdisplay.
1214   Add configure --enable-units-compat to set si_unit_consistency off by default.
1215   Add global/si_unit_consistency to enable cleaned-up use of units in output.
1216
1217 Version 2.02.53 - 25th September 2009
1218 =====================================
1219   Create any directories in /dev with DM_DEV_DIR_UMASK (022).
1220   Enable dmeventd monitoring section of config file by default.
1221   Update lvm2 monitoring script to lvm2_monitoring_init_red_hat.in.
1222   Fix lvm2app test to run under test/api subdirectory only when configured.
1223   Add vg_is_resizeable() and cleanup reference to VG_RESIZEABLE.
1224
1225 Version 2.02.52 - 15th September 2009
1226 =====================================
1227   Update _process_one_vg to cleanup properly after vg_read_error.
1228   Add lots of missing stack debug messages to tools.
1229   Make readonly locking available as locking type 4.
1230   Fix readonly locking to permit writeable global locks (for vgscan). (2.02.49)
1231   Add DM_UDEV_RULES_VSN environment variable to udev rules.
1232   Update vgsplit, vgmerge, and vgrename to obey new vgname ordering rules.
1233   Make lvm2app pv_t, lv_t, vg_t handle definitions consistent with lvm_t.
1234   Enforce an alphabetical lock ordering on vgname locking.
1235   Prioritise write locks over read locks by default for file locking.
1236   Add local lock files with suffix ':aux' to serialise locking requests.
1237   Fix global locking in PV reporting commands (2.02.49).
1238   Fix pvcreate string termination in duplicate uuid warning message.
1239   Don't loop reading sysfs with pvcreate on a non-blkext partition (2.02.51).
1240   Fix vgcfgrestore error paths when locking fails (2.02.49).
1241   Update Makefile distclean target.
1242   Add libudev configuration check.
1243   Make clvmd check corosync to see what cluster interface it should use.
1244   Add clvmd autodetection check and cleanup related configure messages.
1245   Rewrite clvmd configuration code to cope with all combinations of libs.
1246   Added configure --enable-cmirrord to build the cluster mirror log daemon.
1247   Rename clogd to cmirrord.
1248   Make lvchange --refresh only take a read lock on volume group.
1249   Fix race where non-blocking file locks could be granted in error.
1250   Fix vgextend error path - if ORPHAN lock fails, unlock / release vg (2.02.49).
1251   Fix compile warning in clvmd.
1252   Clarify use of PE ranges in lv{convert|create|extend|resize} man pages.
1253   Remove useless _pv_write wrapper.
1254   Add lvm2app.sh to tests conditional upon configure --enable-applib.
1255   Add lvm_vg_is_clustered, lvm_vg_is_exported, and lvm_vg_is_partial.
1256   Update lvm_vg_remove to require lvm_vg_write to commit remove to disk.
1257   Update test/api/test.c to call lvm_vg_create and lvm_vg_remove.
1258
1259 Version 2.02.51 - 6th August 2009
1260 =================================
1261   Fix locking in clvmd (2.02.50).
1262   Add --noudevsync option for relevant LVM tools.
1263   Add activation/udev_sync to lvm.conf.
1264   Only change LV symlinks on ACTIVATE not PRELOAD.
1265   Make lvconvert honour log mirror options combined with downconversion.
1266   Allow LV suspend while --ignorelockingfailure is in force.
1267   Update synopsis in lvconvert manpage to mention --repair.
1268   Set cookies in activation code and wait for udev to complete processing.
1269   Added configure --enable-udev_rules --enable-udev_sync.
1270   Added configure --with-udev-prefix --with-udevdir.
1271   Added udev dir to hold udev rules.
1272   Add devices/data_alignment_detection to lvm.conf.
1273   Add devices/data_alignment_offset_detection to lvm.conf.
1274   Add --dataalignmentoffset to pvcreate to shift start of aligned data area.
1275   Fix _mda_setup() to not check first mda's size before pe_align rounding.
1276   Document -I option of clvmd in the man page.
1277   Fix configure script to handle multiple clvmd selections.
1278   Fix lvm2app.pc installation filename.
1279   Remove pv_t, vg_t & lv_t handles from lib.  Only liblvm uses them.
1280   Rename lvm.h to lvm2app.h for now.
1281
1282 Version 2.02.50 - 28th July 2009
1283 ================================
1284   Change test/api/test.c prompt so it's not confused with the main lvm prompt.
1285   Update liblvm unit tests in test/api to cover latest liblvm changes.
1286   Add unimplemented lvm_lv_resize and lvm_pv_resize skeletons to liblvm.
1287   Add lvm_library_get_version to liblvm.
1288   Add lvm_config_override to liblvm to allow caller to override LVM config.
1289   Add lvm_lv_is_active and lvm_lv_is_suspended to liblvm.
1290   Add lvm_lv_activate and lvm_lv_deactivate to liblvm.
1291   Add lvm_scan, lvm_vg_reduce and lvm_vg_remove_lv to liblvm.
1292   Add functions to get numeric properties to liblvm.
1293   Add lvm_{pv|vg|lv}_get_{name|uuid} to liblvm.
1294   Add lvm_vg_list_pvs and lvm_vg_list_lvs to liblvm.
1295   Add lvm_vg_open and lvm_vg_create_lv_linear to liblvm.
1296   Add lvm_list_vg_names/uuids to liblvm.
1297   Add lvm_errno and lvm_errmsg to liblvm to obtain failure information.
1298   Rename lvm_create/destroy to lvm_init/quit.
1299   Rename lvm_reload_config to lvm_config_reload.
1300   Refactor _override_settings to use new override_config_tree_from_string.
1301   Add vg_reduce to metadata.c and metadata-exported.h.
1302   Update lvm.h to clarify API behavior and return codes.
1303   Update lvm_vg_extend to do an implicit pvcreate on the device.
1304   Update display.c to use vg_free(vg) instead of duplicating the calculation.
1305   Refactor vg_size, vg_free, and pv_mda_count field calculations for liblvm.
1306   Refactor pvcreate and lvcreate for liblvm.
1307   Add global/wait_for_locks to lvm.conf so blocking for locks can be disabled.
1308   All LV locks are non-blocking so remove LCK_NONBLOCK from separate macros.
1309   Fix race condition with vgcreate and vgextend on same device (2.02.49).
1310   Remove redundant validate_name call from vgreduce.
1311   Remove unused handles lvseg, pvseg inside liblvm/lvm.h.
1312   Add liblvm2app Makefile installation targets.
1313   Add liblvm pkgconfig file.
1314   Use newly-independent LVM_LIBAPI in liblvm soname.  E.g. liblvm2app.so.2.1.
1315   Add an API version number, LVM_LIBAPI, to the VERSION string for liblvm.
1316   Pass a pointer to struct cmd_context to init_multiple_segtypes
1317   Return EINVALID_CMD_LINE not success when invalid VG name format is used.
1318   Remove unnecessary messages after vgcreate/vgsplit refactor (2.02.49).
1319   Add log_errno to set a specific errno and replace log_error in due course.
1320   Change create_toolcontext to still return an object if it fails part-way.
1321   Add EUNCLASSIFIED (-1) as the default LVM errno code.
1322   Store any errno and error messages issued while processing each command.
1323   Use log_error macro consistently throughout in place of log_err.
1324
1325 Version 2.02.49 - 15th July 2009
1326 ================================
1327   Add readonly locking type to replace implementation of --ignorelockingfailure.
1328   Exclude VG_GLOBAL from vg_write_lock_held so scans open devs read-only again.
1329   Add unit test case for liblvm VG create/delete APIs.
1330   Add liblvm APIs to implement creation and deletion of VGs.
1331   Initialize cmd->cmd_line to "liblvm" in new liblvm library.
1332   Place handles to liblvm objects for pv, vg, lv, lvseg, pvseg inside lvm.h.
1333   Refactor vgsplit and vgextend to remove READ_REQUIRE_RESIZEABLE flag.
1334   Use _exit() not exit() after forking to avoid flushing libc buffers twice.
1335   Add cast to log_info arg in _find_labeller to avoid Sparc64 warning.
1336   Make cmd->cmd_line const.
1337   Fix dev name mismatch in vgcreate man page example.
1338   Refactor vg_remove_single for use in liblvm.
1339   Make all tools use consistent lock ordering obtaining VG_ORPHAN lock second.
1340   Check md devices for a partition table during device scan.
1341   Add extended device (blkext) and md partition (mdp) types to filters.
1342   Make text metadata read errors for segment areas more precise.
1343   Fix text segment metadata read errors to mention correct segment name.
1344   Include segment and LV names in text segment import error messages.
1345   Add parent node to config_node structure.
1346   Update vgsplit and vgcreate to call new vg_create and 'set' functions.
1347   Change vg_create to take minimal parameters, obtain a lock, and return vg_t.
1348   Refactor vgchange extent_size, max_lv, max_pv, and alloc_policy for liblvm.
1349   Update t-vgcreate-usage.sh to test for default vg properties.
1350   Fix memory leak in vgsplit when re-reading the vg.
1351   Make various exit/cleanup paths more robust after lvm init failures.
1352   Use LCK_NONBLOCK implicitly instead of explicit vg_read() flag.
1353   Remove unnecessary locking and existence tests from new vg_read() interface.
1354   Permit several segment types to be registered by a single shared object.
1355   Update the man pages to document size units uniformly.
1356   Allow commandline sizes to be specified in terms of bytes and sectors.
1357   Update 'md_chunk_alignment' to use stripe-width to align PV data area.
1358   Update test/t-inconsistent-metadata.sh to match new vg_read interface.
1359   Add lvmcache_init() to polldaemon initialization.
1360   Convert tools to use new vg_read / vg_read_for_update.
1361   Fix segfault in vg_release when vg->cmd is NULL.
1362
1363 Version 2.02.48 - 30th June 2009
1364 ================================
1365   Abort if automatic metadata correction fails when reading VG to update it.
1366   Explicitly request fallback to default major number in device mapper.
1367   Ignore suspended devices during repair.
1368   Call vgreduce --removemissing automatically to fix missing PVs in dmeventd.
1369   Suggest using lvchange --resync when adding leg to not-yet-synced mirror.
1370   Destroy toolcontext on clvmd exit to avoid memory pool leaks.
1371   Fix lvconvert not to poll mirror if no conversion in progress.
1372   Fix memory leaks in toolcontext error path.
1373   Reinstate partial activation support in clustered mode. (2.02.40)
1374   Allow metadata correction even when PVs are missing.
1375   Use 'lvm lvresize' instead of 'lvresize' in fsadm.
1376   Do not use '-n' realine option in fsadm for busybox compatiblity.
1377   Add vg_lock_newname() library function for vgrename, vgsplit and vgcreate.
1378   Round up requested readahead to at least one page and print warning.
1379   Try to repair vg before actual vgremove when force flag provided.
1380   Fix possible double release of VG after recovery.
1381   Add parameter to process_each_vg specifying what to do with inconsistent VG.
1382   Unify error messages when processing inconsistent volume group.
1383   Use lvconvert --repair instead of vgreduce in mirror dmeventd DSO.
1384   Introduce lvconvert --use_policies (repair policy according to lvm.conf).
1385   Update clvmd-corosync to match new corosync API.
1386   Fix lib Makefile to include any shared libraries in default target.
1387   Fix rename of active snapshot with virtual origin.
1388   Fix convert polling to ignore LV with different UUID.
1389   Cache underlying device readahead only before activation calls.
1390   Fix segfault when calculating readahead on missing device in vgreduce.
1391   Remove verbose 'visited' messages.
1392   Handle multi-extent mirror log allocation when smallest PV has only 1 extent.
1393   Add LSB standard headers and functions (incl. reload) to clvmd initscript.
1394   When creating new LV, double-check that name is not already in use.
1395   Remove /dev/vgname/lvname symlink automatically if LV is no longer visible.
1396   Rename internal vorigin LV to match visible LV.
1397   Suppress 'removed' messages displayed when internal LVs are removed.
1398   Fix lvchange -a and -p for sparse LVs.
1399   Fix lvcreate --virtualsize to activate the new device immediately.
1400   Make --snapshot optional with lvcreate --virtualsize.
1401   Generalise --virtualoriginsize to --virtualsize.
1402   Skip virtual origins in process_each_lv_in_vg() without --all.
1403   Fix counting of virtual origin LVs in vg_validate.
1404   Attempt to load dm-zero module if zero target needed but not present.
1405
1406 Version 2.02.47 - 22nd May 2009
1407 ===============================
1408   Rename liblvm.so to liblvm2app.so and use configure --enable-applib.
1409   Reinstate version in liblvm2cmd.so soname. (2.02.44)
1410
1411 Version 2.02.46 - 21st May 2009
1412 ===============================
1413   Inherit readahead setting from underlying devices during activation.
1414   Detect LVs active on remote nodes by querying locks if supported.
1415   Enable online resizing of mirrors.
1416   Use suspend with flush when device size was changed during table preload.
1417   Implement query_resource_fn for cluster_locking.
1418   Support query_resource_fn in locking modules.
1419   Introduce CLVMD_CMD_LOCK_QUERY command for clvmd.
1420   Fix pvmove to revert operation if temporary mirror creation fails.
1421   Fix metadata export for VG with missing PVs.
1422   Add vgimportclone and install it and the man page by default.
1423   Force max_lv restriction only for newly created LV.
1424   Remove unneeded import parameter from lv_create_empty.
1425   Merge lv_is_displayable and lv_is_visible functions.
1426   Introduce lv_set_visible & lv_set_hidden functions.
1427   Fix lv_is_visible to handle virtual origin.
1428   Introduce link_lv_to_vg and unlink_lv_from_vg functions.
1429   Remove lv_count from VG and use counter function instead.
1430   Fix snapshot segment import to not use duplicate segments & replace.
1431   Do not query nonexistent devices for readahead.
1432   Remove NON_BLOCKING lock flag from tools and set a policy to auto-set.
1433   Remove snapshot_count from VG and use function instead.
1434   Fix first_seg() call for empty segment list.
1435   Add install_lvm2 makefile target to install only the LVM2 components.
1436   Reject missing PVs from allocation in toollib.
1437   Fix PV datalignment for values starting prior to MDA area. (2.02.45)
1438   Add sparse devices: lvcreate -s --virtualoriginsize (hidden zero origin).
1439   Fix minimum width of devices column in reports.
1440   Add lvs origin_size field.
1441   Fix linux configure --enable-debug to exclude -O2.
1442   Implement lvconvert --repair for repairing partially-failed mirrors.
1443   Fix vgreduce --removemissing failure exit code.
1444   Fix remote metadata backup for clvmd.
1445   Introduce unlock_and_release_vg macro.
1446   Introduce vg_release() to be called to free every struct volume_group.
1447   Alloc PV internal structure from VG mempool if possible.
1448   Fix metadata backup to run after vg_commit always.
1449   Tidy clvmd volume lock cache functions.
1450   Fix pvs report for orphan PVs when segment attributes are requested.
1451   Fix pvs -a output to not read volume groups from non-PV devices.
1452   Add MMC (mmcblk) device type to filters.
1453   Introduce memory pools per volume group (to reduce memory for large VGs).
1454   Use copy of PV structure when manipulating global PV lists.
1455   Always return exit error status when locking of volume group fails.
1456   Fix mirror log convert validation question.
1457   Avoid referencing files from DESTDIR during build process.
1458   Avoid creating some static libraries unless configured --enable-static_link.
1459   Enable use of cached metadata for pvs and pvdisplay commands.
1460   Add missing 'device-mapper' internal subdir build dependency.
1461   Fix memory leak in mirror allocation code.
1462   Save and restore the previous logging level when log level is changed.
1463   Fix error message when archive initialization fails.
1464   Make sure clvmd-corosync releases the lockspace when it exits.
1465   Fix segfault for vgcfgrestore on VG with missing PVs.
1466   Block SIGTERM & SIGINT in clvmd subthreads.
1467   Detect and conditionally wipe swapspace signatures in pvcreate.
1468   Fix maximal volume count check for snapshots if max_lv set for volume group.
1469   Fix lvcreate to remove unused cow volume if the snapshot creation fails.
1470   Fix error messages when PV uuid or pe_start reading fails.
1471   Build new liblvm application-level library.
1472   Rename liblvm.a to liblvm-internal.a.
1473   Flush memory pool and fix locking in clvmd refresh and backup command.
1474   Fix unlocks in clvmd-corosync. (2.02.45)
1475   Fix error message when adding metadata directory to internal list fails.
1476   Fix size and error message of memory allocation at backup initialization.
1477   Remove old metadata backup file after renaming VG.
1478   Restore log_suppress state when metadata backup file is up-to-date.
1479
1480 Version 2.02.45 - 3rd March 2009
1481 ================================
1482   Avoid scanning empty metadata areas for VG names.
1483   Attempt proper clean up in child before executing new binary in exec_cmd().
1484   Do not scan devices if reporting only attributes from PV label.
1485   Use pkgconfig to obtain corosync library details during configuration.
1486   Fix error returns in clvmd-corosync interface to DLM.
1487   Add --refresh to vgchange and vgmknodes man pages.
1488   Pass --test from lvresize to fsadm as --dry-run.
1489   Supply argv[] list to exec_cmd() to allow for variable number of parameters.
1490   Prevent fsadm from checking mounted filesystems.
1491   No longer treats any other key as 'no' when prompting in fsadm.
1492   Tidy fsadm command line processing.
1493   Add lib/lvm.h and lib/lvm_base.c for the new library interface.
1494   Move tools/version.h to lib/misc/lvm-version.h.
1495   Split LVM_VERSION into MAJOR, MINOR, PATCHLEVEL, RELEASE and RELEASE_DATE.
1496   Add system_dir parameter to create_toolcontext().
1497   Add --dataalignment to pvcreate to specify alignment of data area.
1498   Exclude LCK_CACHE locks from _vg_lock_count, fixing interrupt unblocking.
1499   Provide da and mda locations in debug message when writing text format label.
1500   Mention the restriction on file descriptors at invocation on the lvm man page.
1501   Index cached vgmetadata by vgid not vgname to cope with duplicate vgnames.
1502   No longer require kernel and metadata major numbers to match.
1503   Add a fully-functional get_cluster_name() to clvmd corosync interface.
1504   Remove duplicate cpg_initialize from clvmd startup.
1505   Add option to /etc/sysconfig/cluster to select cluster type for clvmd.
1506   Allow clvmd to start up if its lockspace already exists.
1507   Separate PV label attributes which do not need parse metadata when reporting.
1508   Remove external dependency on the 'cut' command from fsadm.
1509   Fix pvs segfault when pv mda attributes requested for not available PV.
1510   Add fsadm support for reszing ext4 filesysystems.
1511   Move locking_type reading inside init_locking().
1512   Rename get_vgs() to get_vgnames() and clarify related error messages.
1513   Allow clvmd to be built with all cluster managers & select one on cmdline.
1514   Mention --with-clvmd=corosync in ./configure.
1515   Replace internal vg_check_status() implementation.
1516   Rename vg_read() to vg_read_internal().
1517
1518 Version 2.02.44 - 26th January 2009
1519 ===================================
1520   Fix --enable-static_link after the recent repository changes.
1521   Add corosync/DLM cluster interface to clvmd.
1522   Add --nameprefixes, --unquoted, --rows to pvs, vgs, lvs man pages.
1523   Fix lvresize size conversion for fsadm when block size is not 1K.
1524   Fix pvs segfault when run with orphan PV and some VG fields.
1525   Display a 'dev_size' of zero for missing devices in reports.
1526   Add pv_mda_size to pvs and vg_mda_size to vgs.
1527   Fix lvmdump /sys listing to include virtual devices directory.
1528   Add "--refresh" functionality to vgchange and vgmknodes.
1529   Avoid exceeding LV size when wiping device.
1530   Calculate mirror log size instead of using 1 extent.
1531   Ensure requested device number is available before activating with it.
1532   Fix incorrect exit status from 'help <command>'.
1533   Fix vgrename using UUID if there are VGs with identical names.
1534   Fix segfault when invalid field given in reporting commands.
1535   Move is_static from cmd to global is_static().
1536   Refactor init_lvm() for lvmcmdline and clvmd.
1537   Add liblvm interactive test infrastructure to build.
1538   Add skeleton lvm2.h file in preparation for a shared library interface.
1539   Use better random seed value in temp file creation.
1540   Add read_urandom to read /dev/urandom. Use in uuid calculation.
1541   Use displayable_lvs_in_vg and lv_is_displayable for consistency throughout.
1542   Fix race in vgcreate that would result in second caller overwriting first.
1543   Fix uninitialised lv_count in vgdisplay -c.
1544   Don't skip updating pvid hash when lvmcache_info struct got swapped.
1545   Add tinfo to termcap search path for pld-linux.
1546   Fix startup race in clvmd.
1547   Generate Red Hat clvmd startup script at config time with correct paths.
1548   Fix clvmd & dmeventd builds after tree restructuring.
1549   Cope with snapshot dependencies when removing a whole VG with lvremove.
1550   Make man pages and tool help text consistent using | for alternative options.
1551
1552 Version 2.02.43 - 10th November 2008
1553 ====================================
1554   Merge device-mapper into the lvm2 tree.
1555   Correct prototype for --permission on lvchange and lvcreate man pages.
1556   Exit with non-zero status from vgdisplay if couldn't show any requested VG.
1557   Move list.c into libdevmapper and rename functions.
1558   Rename a couple of variables that matched function names.
1559   Use simplified x.y.z version number in libdevmapper.pc.
1560   Remove ancient debian directory.
1561   Split out lvm-logging.h from log.h and lvm-globals.[ch] from log.[ch].
1562
1563 Version 2.02.42 - 26th October 2008
1564 ===================================
1565   Accept locking fallback_to_* options in the global section as documented.
1566   Fix temp table activation in mirror conversions not to happen in other cmds.
1567   Fix temp table in mirror conversions to use always-present error not zero.
1568
1569 Version 2.02.41 - 17th October 2008
1570 ===================================
1571   Use temp table to set device size when converting mirrors.
1572   In resume_mirror_images replace activate_lv with resume_lv as workaround.
1573   Avoid overwriting in-use on-disk text metadata by forgetting MDA_HEADER_SIZE.
1574   Fix snapshot monitoring library to not cancel monitoring invalid snapshot.
1575   Generate man pages from templates and include version.
1576   Add usrlibdir and usrsbindir to configure.
1577   Fix conversion of md chunk size into sectors.
1578   Free text metadata buffer after a failure writing it.
1579   Fix misleading error message when there are no allocatable extents in VG.
1580   Fix handling of PVs which reappeared with old metadata version.
1581   Fix mirror DSO to call vgreduce with proper parameters.
1582   Fix validation of --minor and --major in lvcreate to require -My always.
1583   Fix release: clvmd build, vgreduce consolidate & tests, /dev/ioerror warning.
1584
1585 Version 2.02.40 - 19th September 2008
1586 =====================================
1587   Allow lvremove to remove LVs from VGs with missing PVs.
1588   In VG with PVs missing, by default allow activation of LVs that are complete.
1589   Track PARTIAL_LV and MISSING_PV flags internally.
1590   Require --force with --removemissing in vgreduce to remove partial LVs.
1591   No longer write out PARTIAL flag into metadata backups.
1592   Treat new default activation/missing_stripe_filler "error" as an error target.
1593   Remove internal partial_mode.
1594   Add devices/md_chunk_alignment to lvm.conf.
1595   Pass struct physical_volume to pe_align and adjust for md chunk size.
1596   Store sysfs location in struct cmd_context.
1597   Avoid shuffling remaining mirror images when removing one, retaining primary.
1598   Add missing LV error target activation in _remove_mirror_images.
1599   Prevent resizing an LV while lvconvert is using it.
1600   Avoid repeatedly wiping cache while VG_GLOBAL is held in vgscan & pvscan.
1601   Fix pvresize to not allow resize if PV has two metadata areas.
1602   Fix setting of volume limit count if converting to lvm1 format.
1603   Fix vgconvert logical volume id metadata validation.
1604   Fix lvmdump metadata gather option (-m) to work correctly.
1605   Fix allocation bug in text metadata format write error path.
1606   Fix vgcfgbackup to properly check filename if template is used.
1607   configure aborts if lcov or genhtml are missing with --enable-profiling
1608   vgremove tries to remove lv snapshot first.
1609   Added function lv_remove_with_dependencies().
1610   Improve file descriptor leak detection to display likely culprit and filename.
1611   Change clustered mirror kernel module name from cmirror to dm-log-clustered.
1612   Avoid looping forever in _pv_analyze_mda_raw used by pvck.
1613   Change lvchange exit status to indicate if any part of the operation failed.
1614   Fix pvchange and pvremove to handle PVs without mdas.
1615   Refactor _text_pv_read and always return mda list if requested.
1616   Fix configure to work w/o readline unless --enable-readline used. (2.02.39)
1617   Remove is_lvm_partition template which has not yet been coded.
1618   Refactor pvcreate to separate parameter parsing from validation logic.
1619   Check for label_write() failure in _text_pv_write().
1620   Add pvcreate tests and update vgsplit tests to handle lvm1 and lvm2 metadata.
1621   Fix pvchange -M1 -u to preserve existing extent locations when there's a VG.
1622   Cease recognising snapshot-in-use percentages returned by early devt kernels.
1623   Add backward-compatible flags field to on-disk format_text metadata.
1624   Fix dmeventd monitoring libraries to link against liblvm2cmd again. (2.02.39)
1625
1626 Version 2.02.39 - 27th June 2008
1627 ================================
1628   Enable readline by default if available.
1629   Update autoconf to 2008-01-16.
1630   Add $DISTCLEAN_DIRS to make.tmpl.in.
1631   Create coverage reports with --enable-profiling and make lcov or lcov-dated.
1632   Fix up cache for PVs without mdas after consistent VG metadata is processed.
1633   Update validation of safe mirror log type conversions in lvconvert.
1634   Fix lvconvert to disallow snapshot and mirror combinations.
1635   Fix reporting of LV fields alongside unallocated PV segments.
1636   Add --unquoted and --rows to reporting tools.
1637   Add and use uninitialized_var() macro to suppress invalid compiler warnings.
1638   Introduce enum for md minor sb version to suppress compiler warning.
1639   Avoid undefined return value after _memlock manipulation in lvm2_run.
1640   Avoid link failure if configured without --enable-cmdlib or --enable-readline.
1641   Make clvmd return at once if other nodes down in a gulm or openais cluster.
1642   Fix and improve readahead 'auto' calculation for stripe_size.
1643   Fix lvchange output for -r auto setting if auto is already set.
1644   Add test case for readahead.
1645   Avoid ambiguous use of identifier error_message_produced.
1646   Begin syncing configure.in for merge/unification with device-mapper.
1647   Fix add_mirror_images not to dereference uninitialized log_lv upon failure.
1648   Don't call openlog for every debug line output by clvmd.
1649   Add --force to lvextend and lvresize.
1650   Fix vgchange not to activate component mirror volumes directly.
1651   Fix test directory clean up in make distclean.
1652
1653 Version 2.02.38 - 11th June 2008
1654 ================================
1655   Fix tracking of validity of PVs with no mdas in lvmcache.
1656   Fix return values for reporting commands when run with no PVs, LVs, or VGs.
1657   Add omitted unlock_vg() call when sigint_caught() during vg processing.
1658   Fix free_count when reading pool metadata.
1659   Fix segfault when using pvcreate on a device containing pool metadata.
1660   Fix segfault after _free_vginfo by remembering to remove vginfo from list.
1661   Tweak detection of invalid fid after changes to PVs in VG in _vg_read.
1662   Revert assuming precommitted metadata is live when activating (unnecessary).
1663   Drop cached metadata for disappearing VG in vgmerge.
1664   In script-processing mode, stop if any command fails.
1665   Warn if command exits with non-zero status code without a prior log_error.
1666   Check lv_count in vg_validate.
1667   Add --nameprefixes to reporting tools for field name prefix output format.
1668
1669 Version 2.02.37 - 6th June 2008
1670 ===============================
1671   Make clvmd-cman use a hash rather than an array for node updown info.
1672   Correct config file line numbers in messages when parsing comments.
1673   Drop cached metadata when renaming a VG.
1674   Allow for vginfo changing during _vg_read.
1675   Decode numbers in clvmd debugging output.
1676   Add missing deactivation after activation failure in lvcreate -Zy.
1677   When activating, if precommitted metadata is still cached, assume it's live.
1678   When removing LV symlinks, skip any where the VG name is not determined.
1679   Drop metadata cache if update fails in vg_revert or vg_commit.
1680   Avoid spurious duplicate VG messages referring to VGs that are gone.
1681   Drop dev_name_confirmed error message to debug level.
1682   Fix setpriority error message to signed int.
1683   Temporarily disable dmeventd mirror monitoring during lvchange --resync.
1684   Refactor some vginfo manipulation code.
1685   Add assertions to trap deprecated P_ and V_ lock usage.
1686   Add missing mutex around clvmd lvmcache_drop_metadata library call.
1687   Fix uninitialised mutex in clvmd if all daemons are not running at startup.
1688   Avoid using DLM locks with LCK_CACHE type P_ lock requests.
1689   When asked to drop cached committed VG metadata, invalidate cached PV labels.
1690   Drop metadata cache before writing precommitted metadata instead of after.
1691   Don't touch /dev in vgrename if activation is disabled.
1692
1693 Version 2.02.36 - 29th April 2008
1694 =================================
1695   Fix fsadm.sh to work with older blockdev, blkid & readlink binaries.
1696   Fix lvresize to pass new size to fsadm when extending device.
1697   Remove unused struct in clvmd-openais, and use correct node count.
1698   Fix nodes list in clvmd-openais, and allow for broadcast messages.
1699   Exclude VG_GLOBAL from internal concurrent VG lock counter.
1700   Fix vgsplit internal counting of snapshot LVs.
1701   Fix vgmerge snapshot_count when source VG contains snapshots.
1702   Simplify clvmd-openais by using non-async saLckResourceLock.
1703   Fix internal LV counter when a snapshot is removed.
1704   Fix metadata corruption writing lvm1-formatted metadata with snapshots.
1705   Fix lvconvert -m0 allocatable space check.
1706
1707 Version 2.02.35 - 15th April 2008
1708 =================================
1709   Drop cached VG metadata before and after committing changes to it.
1710   Rename P_global to P_#global.
1711   Don't attempt remote metadata backups of non-clustered VGs. (2.02.29)
1712   Don't store fid in VG metadata cache to avoid clvmd segfault. (2.02.34)
1713   Update vgsplit tests to verify loosening of active LV restriction.
1714   Update vgsplit to only restrict split with active LVs involved in split.
1715   Add lv_is_active() to determine whether an lv is active.
1716
1717 Version 2.02.34 - 10th April 2008
1718 =================================
1719   Improve preferred_names lvm.conf example.
1720   Fix vgdisplay 'Cur LV' field to match lvdisplay output.
1721   Fix lv_count report field to exclude hidden LVs.
1722   Add vg_is_clustered() helper function.
1723   Fix vgsplit to only move hidden 'snapshotN' LVs when necessary.
1724   Update vgsplit tests for lvnames on the cmdline.
1725   Update vgsplit man page to reflect lvnames on the cmdline.
1726   Update vgsplit to take "-n LogicalVolumeName" on the cmdline.
1727   Use clustered mirror log with pvmove in clustered VGs, if available.
1728   Fix some pvmove error status codes.
1729   Fix vgsplit error paths to release vg_to lock.
1730   Indicate whether or not VG is clustered in vgcreate log message.
1731   Mention default --clustered setting in vgcreate man page.
1732   Add config file overrides to clvmd when it reads the active LVs list.
1733   Fix vgreduce to use vg_split_mdas to check sufficient mdas remain.
1734   Add (empty) orphan VGs to lvmcache during initialisation.
1735   Fix orphan VG name used for format_pool.
1736   Create a fid for internal orphan VGs.
1737   Update lvmcache VG lock state for all locking types now.
1738   Fix output if overriding command_names on cmdline.
1739   Add detection of clustered mirror log capability.
1740   Add check to vg_commit() ensuring VG lock held before writing new VG metadata.
1741   Add validation of LV name to pvmove -n.
1742   Make clvmd refresh the context correctly when lvm.conf is updated.
1743   Add some basic internal VG lock validation.
1744   Add per-command flags to control which commands use the VG metadata cache.
1745   Fix vgsplit locking of new VG (2.02.30).
1746   Avoid erroneous vgsplit error message for new VG. (2.02.29)
1747   Suppress duplicate message when lvresize fails because of invalid vgname.
1748   Cache VG metadata internally while VG lock is held.
1749   Fix redundant lvresize message if vg doesn't exist.
1750   Fix another allocation bug with clvmd and large node IDs.
1751   Add find_lv_in_lv_list() and find_pv_in_pv_list().
1752   Fix uninitialised variable in clvmd that could cause odd hangs.
1753   Add vgmerge tests.
1754   Add pvseg_is_allocated() for identifying a PV segment allocated to a LV.
1755   Add list_move() for moving elements from one list to another.
1756   Add 'is_reserved_lvname()' for identifying hidden LVs.
1757   Correct command name in lvmdiskscan man page.
1758   clvmd no longer crashes if it sees nodeids over 50.
1759   Fix potential deadlock in clvmd thread handling.
1760   Refactor text format initialisation into _init_text_import.
1761   Escape double quotes and backslashes in external metadata and config data.
1762   Add functions for escaping double quotes in strings.
1763   Rename count_chars_len to count_chars.
1764   Use return_0 in a couple more places.
1765   Correct a function name typo in _line_append error message.
1766   Include limits.h in clvmd so it compiles with newer headers.
1767   Add VirtIO disks (virtblk) to filters.
1768   Fix resetting of MIRROR_IMAGE and VISIBLE_LV after removal of LV. (2.02.30)
1769   Fix remove_layer_from_lv to empty the LV before removing it. (2.02.30)
1770   Add missing no-longer-used segs_using_this_lv test to check_lv_segments.
1771   Remove redundant non-NULL tests before calling free in clvmd.c.
1772   Avoid a compiler warning: make is_orphan's parameter const.
1773   Fix lvconvert detection of mirror conversion in progress. (2.02.30)
1774   Avoid automatic lvconvert polldaemon invocation when -R specified. (2.02.30)
1775   Fix 'pvs -a' to detect VGs of PVs without metadata areas.
1776   Divide up internal orphan volume group by format type.
1777   Update usage message for clvmd.
1778   Fix clvmd man page not to print <br> and clarified debug options.
1779   Fix lvresize to support /dev/mapper prefix in the LV name.
1780   Fix unfilled parameter passed to fsadm from lvresize.
1781   Update fsadm to call lvresize if the partition size differs (with option -l).
1782   Fix fsadm to support VG/LV names.
1783
1784 Version 2.02.33 - 31st January 2008
1785 ===================================
1786   Fix mirror log name construction during lvconvert. (2.02.30)
1787   Make monitor_dev_for_events recurse through the stack of LVs.
1788   Clean up some more compiler warnings.
1789   Some whitespace tidy-ups.
1790   Use stack return macros throughout.
1791   Rely upon internally-cached PV labels while corresponding VG lock is held.
1792
1793 Version 2.02.32 - 29th January 2008
1794 ===================================
1795   Fix two check_lv_segments error messages to show whole segment.
1796   Refactor mirror log attachment code.
1797   Fix internal metadata corruption in lvchange --resync. (2.02.30)
1798   Fix new parameter validation in vgsplit and test mode. (2.02.30)
1799   Remove redundant cnxman-socket.h file from clvmd directory.
1800   Fix pvs, vgs, lvs error exit status on some error paths.
1801
1802 Version 2.02.31 - 19th January 2008
1803 ===================================
1804   Fix lvcreate --nosync not to wait for non-happening sync. (2.02.30)
1805   Add very_verbose lvconvert messages.
1806   Avoid readahead error message with default setting of lvcreate -M1. (2.02.29)
1807
1808 Version 2.02.30 - 17th January 2008
1809 ===================================
1810   Set default readahead to twice maximium stripe size.
1811   Reinstate VG extent size and stripe size defaults (halved). (2.02.29)
1812   Add lists of stacked LV segments using each LV to the internal metadata.
1813   Change vgsplit -l (for unimplemented --list) into --maxlogicalvolumes.
1814   Fix process_all_pvs to detect non-orphans with no MDAs correctly.
1815   Don't use block_on_error with mirror targets version 1.12 and above.
1816   Update vgsplit to accept vgcreate options when new VG is destination.
1817   Update vgsplit to accept existing VG as destination.
1818   lvconvert waits for completion of initial sync by default.
1819   Refactor vgcreate for parameter validation and add tests.
1820   Add new convert_lv field to lvs output.
1821   Print warning when lvm tools are running as non-root.
1822   Add snapshot dmeventd library (enables dmeventd snapshot monitoring).
1823   Prevent pvcreate from overwriting MDA-less PVs belonging to active VGs.
1824   Fix a segfault if using pvs with --all argument. (2.02.29)
1825   Update --uuid argument description in man pages.
1826   Fix vgreduce PV list processing not to process every PV in the VG. (2.02.29)
1827   Extend lvconvert to use polldaemon.
1828   Add support for stacked mirrors.
1829   Major restructuring of pvmove and lvconvert layer manipulation code.
1830   Replace tools/fsadm with scripts/fsadm.sh.
1831   Append fields to report/pvsegs_cols_verbose.
1832   Permit LV segment fields with PV segment reports.
1833   Add seg_start_pe and seg_pe_ranges to reports.
1834
1835 Version 2.02.29 - 5th December 2007
1836 ===================================
1837   Make clvmd backup vg metadata on remote nodes.
1838   Refactor pvmove allocation code.
1839   Decode cluster locking state in log message.
1840   Change file locking state messages from debug to very verbose.
1841   Fix --addtag to drop @ prefix from name.
1842   Stop clvmd going haywire if a pre_function fails.
1843   Convert some vg_reads into vg_lock_and_reads.
1844   Avoid nested vg_reads when processing PVs in VGs and fix associated locking.
1845   Accept sizes with --readahead argument.
1846   Store size arguments as sectors internally.
1847   Attempt to remove incomplete LVs with lvcreate zeroing/activation problems.
1848   Add read_ahead activation code.
1849   Add activation/readahead configuration option and FMT_RESTRICTED_READAHEAD.
1850   Extend readahead arg to accept "auto" and "none".
1851   Add lv_read_ahead and lv_kernel_read_ahead fields to reports and lvdisplay.
1852   Prevent lvconvert -s from using same LV as origin and snapshot.
1853   Fix human-readable output of odd numbers of sectors.
1854   Add pv_mda_free and vg_mda_free fields to reports for raw text format.
1855   Add LVM2 version to 'Generated by' comment in metadata.
1856   Show 'not usable' space when PV is too large for device in pvdisplay.
1857   Ignore and fix up any excessive device size found in metadata.
1858   Fix error message when fixing up PV size in lvm2 metadata (2.02.11).
1859   Fix orphan-related locking in pvdisplay and pvs.
1860   Fix missing VG unlocks in some pvchange error paths.
1861   Add some missing validation of VG names.
1862   Rename validate_vg_name() to validate_new_vg_name().
1863   Change orphan lock to VG_ORPHANS.
1864   Change format1 to use ORPHAN as orphan VG name.
1865   Convert pvchange, pvdisplay, pvscan to use is_orphan()
1866   Add is_orphan_vg() and change all hard-coded checks to use it.
1867   Detect md superblocks version 1.0, 1.1 and 1.2.
1868   Add _alloc_pv() and _free_pv() from _pv_create() code and fix error paths.
1869   Add pv_dev_name() to access PV device name.
1870   Add const attributes to pv accessor functions.
1871   Refactor vg_add_snapshot() and lv_create_empty().
1872   Handle new sysfs subsystem/block/devices directory structure.
1873   Run test with LVM_SYSTEM_DIR pointing to private root and /dev dirs.
1874   Fix a bug in lvm_dump.sh checks for lvm/dmsetup binaries.
1875   Fix underquotations in lvm_dump.sh.
1876   Refactor lvcreate stripe and mirror parameter validation.
1877   Print --help output to stdout, not stderr.
1878   After a cmdline processing error, don't print help text but suggest --help.
1879   Add %PVS extents option to lvresize, lvextend, and lvcreate.
1880   Add 'make check' to run tests in new subdirectory 'test'.
1881   Moved the obsolete test subdirectory to old-tests.
1882   Cope with relative paths in configure --with-dmdir.
1883   Remove no-longer-correct restrictions on PV arg count with stripes/mirrors.
1884   Fix strdup memory leak in str_list_dup().
1885   Link with -lpthread when static SELinux libraries require that.
1886   Detect command line PE values that exceed their 32-bit range.
1887   Include strerror string in dev_open_flags' stat failure message.
1888   Move guts of pvresize into library.
1889   Avoid error when --corelog is provided without --mirrorlog. (2.02.28)
1890   Correct --mirrorlog argument name in man pages (not --log).
1891   Clear MIRROR_NOTSYNCED LV flag when converting from mirror to linear.
1892   Modify lvremove to prompt for removal if LV active on other cluster nodes.
1893   Add '-f' to vgremove to force removal of VG even if LVs exist.
1894
1895 Version 2.02.28 - 24th August 2007
1896 ==================================
1897   Fix clvmd logging so you can get lvm-level debugging out of it.
1898   Introduce VG_GLOBAL lock type for vgscan/pvscan to trigger clvmd -R.
1899   Change locking_flags from int to uint32_t.
1900   Fix clvmd -R, so it fully refreshes the caches.
1901   Change lvconvert_mirrors to use mirror segtype not striped.
1902   Fix lvconvert_mirrors detection of number of existing mirrors.
1903   Clean up numerous compiler warnings that appeared in recent releases.
1904   Remove several unused parameters from _allocate().
1905   Only permit --force, --verbose and --debug arguments to be repeated.
1906   Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1.
1907   Move guts of vgremove and lvremove into library, including yes_no_prompt.
1908   Allow clvmd debug to be turned on in a running daemon using clvmd -d [-C].
1909   Update to use autoconf 2.61, while still supporting 2.57.
1910   Add more cluster info to lvmdump.
1911   Add further const attributes throughout.
1912   Add support for renaming mirrored LVs.
1913   Factor out core of lvrename() to library function.
1914   Add --mirrorlog argument to specify log type for mirrors.
1915   Don't attempt to monitor devices if their creation failed in _lv_activate.
1916   Don't leak a file descriptor in fcntl_lock_file() when fcntl fails.
1917   Replace create_dir with dm_create_dir.
1918   Detect stream write failure reliably with lvm_fclose using dm_fclose.
1919   Fix clvmd if compiled with gulm support. (2.02.26)
1920   Fix lvdisplay man page to say LV size is reported in sectors, not KB.
1921   Add vg_lock_and_read() external library function.
1922   Fix loading of persistent cache if cache_dir is used. (2.02.23)
1923   Reduce _compare_paths lstat error message from log_error to log_very_verbose.
1924   Create util.h with last_path_component replacing strdup + basename.
1925   Use gcc's printf attribute wherever possible.
1926   In _line_append, use "sizeof buf - 1" rather than equivalent "4095".
1927   Introduce is_same_inode macro, now including a comparison of st_dev.
1928   Don't leak a file descriptor in _lock_file() when flock fails.
1929   Add SUN's LDOM virtual block device (vdisk) and ps3disk to filters.
1930   Split metadata-external.h out from metadata.h for the tools to use.
1931
1932 Version 2.02.27 - 17th July 2007
1933 ================================
1934   Fix snapshot cow area deactivation if origin is not active. (2.02.13)
1935   Fix configure libdevmapper.h check when --with-dmdir is used.
1936   Turn _add_pv_to_vg() into external library function add_pv_to_vg().
1937   Add pv_by_path() external library function.
1938   Tidy clvmd-openais of redundant bits, and improve an error report.
1939   Cope with find_seg_by_le() failure in check_lv_segments().
1940   Call dev_iter_destroy() if _process_all_devs() is interrupted by sigint.
1941   Add vg_mda_count and pv_mda_count columns to reports.
1942   Fix dumpconfig to use log_print instead of stdout directly.
1943   Remove unused parameter 'fid' from _add_pv_to_vg.
1944   Add kernel and device-mapper targets versions to lvmdump.
1945   Replace BSD (r)index with C89 str(r)chr.
1946   Handle vgsplit of an entire VG as a vgrename.
1947   Reinitialise internal lvmdiskscan variables when called repeatedly.
1948   Fix missing lvm_shell symbol in lvm2cmd library. (2.02.23)
1949   Add vg_status function and clean up vg->status in tools directory.
1950   Add --ignoremonitoring to disable all dmeventd interaction.
1951   Remove get_ prefix from get_pv_* functions.
1952   clvmd-openais now uses cpg_local_get() to get nodeid, rather than Clm.
1953   Print warnings to stderr instead of stdout.
1954
1955 Version 2.02.26 - 15th June 2007
1956 ================================
1957   Update vgcfgrestore man page.
1958   Allow keyboard interrupt during user prompts when appropriate.
1959   Remove unused clvmd system-lv code.
1960   Replace many physical_volume struct dereferences with new get_pv_* functions.
1961   Suppress a benign compile-time warning.
1962   Convert find_pv_in_vg_by_uuid and pv_create to use PV handles.
1963   Add wrappers to some functions in preparation for external LVM library.
1964   Add -f to vgcfgrestore to list metadata backup files.
1965   Add vg_check_status to consolidate vg status checks and error messages.
1966   Add pvdisplay --maps implementation.
1967   Remove unsupported LVM1 options from vgcfgrestore man page.
1968   Update vgcfgrestore man page to show mandatory VG name.
1969   Update vgrename man page to include UUID and be consistent with lvrename.
1970   Add (experimental) OpenAIS support to clvmd.
1971   Fix deactivation code to follow dependencies and remove symlinks.
1972   Fix and clarify vgsplit error messages.
1973   Fix a segfault in device_is_usable() if a device has no table.
1974   Add some more debug messages to clvmd startup.
1975   Misc clvmd cleanups.
1976
1977 Version 2.02.25 - 27th April 2007
1978 =================================
1979   Fix get_config_uint64() to read a 64-bit value not a 32-bit one.
1980   Add -Wformat-security and change one fprintf() to fputs().
1981   Move regex functions into libdevmapper.
1982   Change some #include lines to search only standard system directories.
1983   Add devices/preferred_names config regex list for displayed device names.
1984   Free a temporary dir string in fcntl_lock_file() after use.
1985   Fix a dm_pool_destroy() in matcher_create().
1986   Introduce goto_bad macro.
1987   Fix warnings on x86_64 involving ptrdiff_t in log_error messages.
1988   Update pvck to include text metadata area and record detection.
1989   Add support functions for token counting in config file extracts.
1990   Update pvck to read labels on disk, with --labelsector parameter.
1991   Add count_chars and count_chars_len functions.
1992   Add /sys/block listings to lvm_dump.sh.
1993   Make lvm_dump.sh list /dev recursively.
1994   Fix thread race in clvmd.
1995   Add scan_sector param to label_read and _find_labeller.
1996   Make clvmd cope with quorum devices.
1997   Add extra internal error checking to clvmd.
1998   Add dev_read_circular.
1999   Add pvck command stub.
2000   Update lists of attribute characters in man pages.
2001   Change cling alloc policy attribute character from 'C' to l'.
2002   Fix creation and conversion of mirrors with tags.
2003   Fix vgsplit for lvm1 format (set and validate VG name in PVs metadata).
2004   Split metadata areas in vgsplit properly.
2005
2006 Version 2.02.24 - 19th March 2007
2007 =================================
2008   Fix processing of exit status in init scripts
2009   Fix vgremove to require at least one vg argument.
2010   Fix reading of striped LVs in LVM1 format.
2011   Flag nolocking as clustered so clvmd startup sees clustered LVs. (2.02.10)
2012   Add a few missing pieces of vgname command line validation.
2013   Support the /dev/mapper prefix on most command lines.
2014
2015 Version 2.02.23 - 8th March 2007
2016 ================================
2017   Fix vgrename active LV check to ignore differing vgids.
2018   Remove no-longer-used uuid_out parameter from activation info functions.
2019   Fix two more segfaults if an empty config file section encountered.
2020   Move .cache file into a new /etc/lvm/cache directory by default.
2021   Add devices/cache_dir & devices/cache_file_prefix, deprecating devices/cache.
2022   Create directory in fcntl_lock_file() if required.
2023   Exclude readline support from lvm.static.
2024   Fix a leak in a reporting error path (2.02.19).
2025
2026 Version 2.02.22 - 13th February 2007
2027 ====================================
2028   Correct -b and -P on a couple of man pages.
2029   Add global/units to example.conf.
2030   Fix loading of segment_libraries.
2031   If a PV reappears after it was removed from its VG, make it an orphan.
2032   Don't update metadata automatically if VGIDs don't match.
2033   Fix some vgreduce --removemissing command line validation.
2034
2035 Version 2.02.21 - 30th January 2007
2036 ===================================
2037   Add warning to lvm2_monitoring_init_rhel4 if attempting to stop monitoring.
2038   Fix vgsplit to handle mirrors.
2039   Reorder fields in reporting field definitions.
2040   Fix vgs to treat args as VGs even when PV fields are displayed.
2041   Fix md signature check to handle both endiannesses.
2042
2043 Version 2.02.20 - 25th January 2007
2044 ===================================
2045   dmeventd mirror sets ignore_suspended_devices and avoids scanning mirrors.
2046   Add devices/ignore_suspended_devices to ignore suspended dm devices.
2047   Add some missing close() and fclose() return code checks.
2048   Fix exit statuses of reporting tools (2.02.19).
2049   Add init script for dmeventd monitoring.
2050   lvm.static no longer interacts with dmeventd unless explicitly asked to.
2051   Add field definitions to report help text.
2052   Remove unnecessary cmd arg from target_*monitor_events().
2053   Add private variable to dmeventd shared library interface.
2054   Long-lived processes write out persistent dev cache in refresh_toolcontext().
2055   Fix refresh_toolcontext() always to wipe persistent device filter cache.
2056   Add is_long_lived to toolcontext.
2057   Add --clustered to man pages.
2058   Streamline dm_report_field_* interface.
2059   Change remaining dmeventd terminology 'register' to 'monitor'.
2060   Update reporting man pages.
2061   No longer necessary to specify alignment type for report fields.
2062
2063 Version 2.02.19 - 17th January 2007
2064 ===================================
2065   Fix a segfault if an empty config file section encountered.
2066   Move basic reporting functions into libdevmapper.
2067   Fix partition table processing after sparc changes (2.02.16).
2068   Fix cmdline PE range processing segfault (2.02.13).
2069   Some libdevmapper-event interface changes.
2070   Report dmeventd mirror monitoring status.
2071   Fix dmeventd mirror status line processing.
2072
2073 Version 2.02.18 - 11th January 2007
2074 ===================================
2075   Revised libdevmapper-event interface for dmeventd.
2076   Remove dmeventd mirror status line word limit.
2077   Use CFLAGS when linking so mixed sparc builds can supply -m64.
2078   Prevent permission changes on active mirrors.
2079   Print warning instead of error message if lvconvert cannot zero volume.
2080   Add snapshot options to lvconvert man page.
2081   dumpconfig accepts a list of configuration variables to display.
2082   Change dumpconfig to use --file to redirect output to a file.
2083   Avoid vgreduce error when mirror code removes the log LV.
2084   Remove 3 redundant AC_MSG_RESULTs from configure.in.
2085   Free memory in _raw_read_mda_header() error paths.
2086   Fix ambiguous vgsplit error message for split LV.
2087   Fix lvextend man page typo.
2088   Add configure --with-dmdir to compile against a device-mapper source tree.
2089   Use no flush suspending for mirrors.
2090   Add dmeventd_mirror register_mutex, tidy initialisation & add memlock.
2091   Fix create mirror with name longer than 22 chars.
2092   Fix some activate.c prototypes when compiled without devmapper.
2093   Fix dmeventd mirror to cope if monitored device disappears.
2094
2095 Version 2.02.17 - 14th December 2006
2096 ====================================
2097   Add missing pvremove error message when device doesn't exist.
2098   When lvconvert allocates a mirror log, respect parallel area constraints.
2099   Use loop to iterate through the now-ordered policy list in _allocate().
2100   Check for failure to allocate just the mirror log.
2101   Introduce calc_area_multiple().
2102   Support mirror log allocation when there is only one PV: area_count now 0.
2103   Fix detection of smallest area in _alloc_parallel_area() for cling policy.
2104   Add manpage entry for clvmd -T
2105   Fix gulm operation of clvmd, including a hang when doing lvchange -aey
2106   Fix hang in clvmd if a pre-command failed.
2107
2108 Version 2.02.16 - 1st December 2006
2109 ===================================
2110   Fix VG clustered read locks to use PR not CR.
2111   Adjust some alignments for ia64/sparc.
2112   Fix mirror segment removal to use temporary error segment.
2113   Always compile debug logging into clvmd.
2114   Add startup timeout to RHEL4 clvmd startup script.
2115   Add -T (startup timeout) switch to clvmd.
2116   Improve lvm_dump.sh robustness.
2117   Update lvm2create_initrd to support gentoo.
2118
2119 Version 2.02.15 - 21st November 2006
2120 ====================================
2121   Fix clvmd_init_rhel4 line truncation (2.02.14).
2122   Install lvmdump by default.
2123   Fix check for snapshot module when activating snapshot.
2124   Fix pvremove error path for case when PV is in use.
2125   Warn if certain duplicate config file entries are seen.
2126   Enhance lvm_dump.sh for sysreport integration and add man page.
2127   Fix --autobackup argument which could never disable backups.
2128   Fix a label_verify error path.
2129
2130 Version 2.02.14 - 10th November 2006
2131 ====================================
2132   Fix adjusted_mirror_region_size() to handle 64-bit size.
2133   Add some missing bounds checks on 32-bit extent counters.
2134   Add Petabyte and Exabyte support.
2135   Fix lvcreate error message when 0 extents requested.
2136   lvremove man page: volumes must be cluster inactive before being removed.
2137   Protect .cache manipulations with fcntl locking.
2138   Change .cache timestamp comparisons to use ctime.
2139   Fix mirror log LV writing to set all bits in whole LV.
2140   Fix clustered VG detection and default runlevels in clvmd_init_rhel4.
2141   Fix high-level free space check for partial allocations.
2142
2143 Version 2.02.13 - 27th October 2006
2144 ===================================
2145   Add couple of missing files to tools/Makefile CLEAN_TARGETS.
2146   When adding snapshot leave cow LV mapped device active after zeroing.
2147   Fix a clvmd debug message.
2148   Add dev_flush() to set_lv().
2149   Add lvchange --resync.
2150   Perform high-level free space check before each allocation attempt.
2151   Don't allow a node to remove an LV that's exclusively active on anther node.
2152   Cope if same PV is included more than once in cmdline PE range list.
2153   Set PV size to current device size if it is found to be zero.
2154   Add segment parameter to target_present functions.
2155
2156 Version 2.02.12 - 16th October 2006
2157 ===================================
2158   Fix pvdisplay to use vg_read() for non-orphans.
2159   Fall back to internal locking if external locking lib is missing or fails.
2160   Retain activation state after changing LV minor number with --force.
2161   Propagate clustered flag in vgsplit and require resizeable flag.
2162
2163 Version 2.02.11 - 12th October 2006
2164 ===================================
2165   Add clvmd function to return the cluster name. not used by LVM yet.
2166   Add cling allocation policy.
2167   Change _check_contiguous() to use _for_each_pv().
2168   Extend _for_each_pv() to allow termination without error.
2169   Abstract _is_contiguous().
2170   Remove duplicated pv arg from _check_contiguous().
2171   Accept regionsize with lvconvert.
2172   Add report columns with underscore before field names ending 'size'.
2173   Correct regionsize default on lvcreate man page (MB).
2174   Fix clvmd bug that could cause it to die when a node with a long name crashed.
2175   Add device size to text metadata.
2176   Fix format_text mda_setup pv->size and pv_setup pe_count calculations.
2177   Fix _for_each_pv() for mirror with core log.
2178   Add lvm_dump.sh script to create a tarball of debugging info from a system.
2179   Capture error messages in clvmd and pass them back to the user.
2180   Remove unused #defines from filter-md.c.
2181   Make clvmd restart init script wait until clvmd has died before starting it.
2182   Add -R to clvmd which tells running clvmds to reload their device cache.
2183   Add LV column to reports listing kernel modules needed for activation.
2184   Show available fields if report given invalid field. (e.g. lvs -o list)
2185   Add timestamp functions with --disable-realtime configure option.
2186   Add %VG, %LV and %FREE suffices to lvcreate/lvresize --extents arg.
2187   Fix two potential NULL pointer derefs in error cases in vg_read().
2188   Separate --enable-cluster from locking lib options in lvmconf.sh.
2189   Add a missing comma in lvcreate man page.
2190
2191 Version 2.02.10 - 19th September 2006
2192 =====================================
2193   Fix lvconvert mirror change case detection logic.
2194   Fix mirror log detachment so it correctly becomes a standalone LV.
2195   Extend _check_contiguous() to detect single-area LVs.
2196   Include mirror log (untested) in _for_each_pv() processing.
2197   Use MIRROR_LOG_SIZE constant.
2198   Remove struct seg_pvs from _for_each_pv() to generalise.
2199   Avoid adding duplicates to list of parallel PVs to avoid.
2200   Fix several incorrect comparisons in parallel area avoidance code.
2201   Fix segment lengths when flattening existing parallel areas.
2202   Log existing parallel areas prior to allocation.
2203   Fix mirror log creation when activation disabled.
2204   Don't attempt automatic recovery without proper locking.
2205   When using local file locking, skip clustered VGs.
2206   Add fallback_to_clustered_locking and fallback_to_local_locking parameters.
2207   lvm.static uses built-in cluster locking instead of external locking.
2208   Don't attempt to load shared libraries if built statically.
2209   Change default locking_lib to liblvm2clusterlock.so.
2210   Add skip_dev_dir() to process command line VGs.
2211   Stop clvmd complaining about nodes that have left the cluster.
2212   Move lvm_snprintf(), split_words() and split_dm_name() into libdevmapper.
2213   Add lvconvert man page.
2214   Add mirror options to man pages.
2215   Prevent mirror renames.
2216   Move CMDLIB code into separate file and record whether static build.
2217
2218 Version 2.02.09 - 17th August 2006
2219 ==================================
2220   Fix PE_ALIGN for pagesize over 32KB.
2221   Separate out LVM1_PE_ALIGN and pe_align().
2222   Add lvm_getpagesize wrapper.
2223   Add --maxphysicalvolumes to vgchange.
2224
2225 Version 2.02.08 - 15th August 2006
2226 ==================================
2227   Add checks for duplicate LV name, lvid and PV id before writing metadata.
2228   Report all sanity check failures, not just the first.
2229   Fix missing lockfs on first snapshot creation.
2230   Add unreliable --trustcache option to reporting commands.
2231   Fix locking for mimage removal.
2232   Fix clvmd_init_rhel4 'status' exit code.
2233
2234 Version 2.02.07 - 17th July 2006
2235 ================================
2236   Fix activation logic in lvchange --persistent.
2237   Don't ignore persistent minor numbers when activating.
2238   Use RTLD_GLOBAL when loading shared libraries.
2239   Add some forgotten memlock checks to _vg_read to protect against full scans.
2240   Add mutex to dmeventd_mirror to avoid concurrent execution.
2241   Fix vgreduce --removemissing to return success if VG is already consistent.
2242   Fix return code if VG specified on command line is not found.
2243   Fix PV tools to include orphaned PVs in default output again.
2244   Fixed unaligned access when using clvm.
2245   Fix an extra dev_close in a label_read error path.
2246   Append patches to commit emails.
2247   Fix target_register_events args.
2248   Prevent snapshots of mirrors.
2249   Add DISTCLEAN_TARGETS to make template for configure.h.
2250   More fixes to error paths.
2251   Fix lvcreate corelog validation.
2252   Add --config for overriding most config file settings from cmdline.
2253   Quote arguments when printing command line.
2254   Remove linefeed from 'initialising logging' message.
2255   Add 'Completed' debug message.
2256   Don't attempt library exit after reloading config files.
2257   Always compile with libdevmapper, even if device-mapper is disabled.
2258
2259 Version 2.02.06 - 12th May 2006
2260 ===============================
2261   Propagate --monitor around cluster.
2262   Add --monitor to vgcreate and lvcreate to control dmeventd registration.
2263   Filter LCK_NONBLOCK in clvmd lock_vg.
2264   Add --nosync to lvcreate with LV flag NOTSYNCED.
2265   Use mirror's uuid for a core log.
2266   Add mirror log fault-handling policy.
2267   Improve mirror warning messages and tidy dmeventd syslog output.
2268   Propagate nosync flag around cluster.
2269   Allow vgreduce to handle mirror log failures.
2270   Add --corelog to lvcreate and lvconvert.
2271   Create a log header for replacement in-sync mirror log.
2272   Use set_lv() and dev_set() to wipe sections of devices.
2273   Add mirror_in_sync() flag to avoid unnecessary resync on activation.
2274   Add mirror_library description to example.conf.
2275   Fix uuid_from_num() buffer overrun.
2276   Make SIZE_SHORT the default for display_size().
2277   Fix some memory leaks in error paths found by coverity.
2278   Use C99 struct initialisers.
2279   Move DEFS into configure.h.
2280   Clean-ups to remove miscellaneous compiler warnings.
2281   Improve stripe size validation.
2282   Increase maximum stripe size limit to physical extent size for lvm2 metadata.
2283   Fix activation code to check for pre-existing mirror logs.
2284   Tighten region size validation.
2285   Ignore empty strings in config files.
2286   Require non-zero regionsize and document parameter on lvcreate man page.
2287   Invalidate cache if composition of VG changed externally.
2288
2289 Version 2.02.05 - 21st April 2006
2290 =================================
2291   Fix vgid string termination in recent cache code.
2292
2293 Version 2.02.04 - 19th April 2006
2294 =================================
2295   Check for libsepol.
2296   Add some cflow & scope support.
2297   Separate out DEFS from CFLAGS.
2298   Remove inlines and use unique function names.
2299
2300 Version 2.02.03 - 14th April 2006
2301 =================================
2302   vgrename accepts vgid and exported VG.
2303   Add --partial to pvs.
2304   When choosing between identically-named VGs, also consider creation_host.
2305   Provide total log suppression with 2.
2306   Fix vgexport/vgimport to set/reset PV exported flag so pv_attr is correct.
2307   Add vgid to struct physical_volume and pass with vg_name to some functions.
2308   If two or more VGs are found with the same name, use one that is not exported.
2309   Whenever vgname is captured, also capture vgid and whether exported.
2310   Remove an incorrect unlock_vg() from process_each_lv().
2311   Update extent size information in vgchange and vgcreate man pages.
2312   Introduce origin_from_cow() and lv_is_visible().
2313   pvremove without -f now fails if there's no PV label.
2314   Support lvconvert -s.
2315   Suppress locking library load failure message if --ignorelockingfailure.
2316   Propagate partial mode around cluster.
2317   Fix archive file expiration.
2318   Fix dmeventd build.
2319   clvmd now uses libcman rather than cman ioctls.
2320   clvmd will allow new cman to shutdown on request.
2321
2322 Version 2.02.02 - 7th February 2006
2323 ===================================
2324   Add %.so: %.a make template rule.
2325   Switchover library building to use LIB_SUFFIX.
2326   Only do lockfs filesystem sync when suspending snapshots.
2327   Always print warning if activation is disabled.
2328   vgreduce removes mirror images.
2329   Add --mirrorsonly to vgreduce.
2330   vgreduce replaces active LVs with error segment before removing them.
2331   Set block_on_error parameter if available.
2332   Add target_version.
2333   Add details to format1 'Invalid LV in extent map' error message.
2334   Fix lvscan snapshot full display.
2335   Bring lvdisplay man page example into line.
2336   Add mirror dmeventd library.
2337   Add some activation logic to remove_mirror_images().
2338   lvconvert can remove specified PVs from a mirror.
2339   lvconvert turns an existing LV into a mirror.
2340   Allow signed mirrors arguments.
2341   Move create_mirror_log() into toollib.
2342   Determine parallel PVs to avoid with ALLOC_NORMAL allocation.
2343   Fix lv_empty.
2344
2345 Version 2.02.01 - 23rd November 2005
2346 ====================================
2347   Fix lvdisplay cmdline to accept snapshots.
2348   Fix open RO->RW promotion.
2349   Fix missing vg_revert in lvcreate error path.
2350
2351 Version 2.02.00 - 10th November 2005
2352 ====================================
2353   Extend allocation areas to avoid overflow with contiguous with other PVs.
2354   Stop lvcreate attempting to wipe zero or error segments.
2355   Added new lvs table attributes.
2356   Separated out activation preload.
2357   Moved activation functions into libdevmapper.
2358   Fixed build_dm_name.
2359   Add return macros.
2360   Added xen xvd devices.
2361   Clear up precommitted metadata better.
2362   A pvresize implementation.
2363   Fix contiguous allocation when there are no preceding segments.
2364   Add mirror_seg pointer to lv_segment struct.
2365   Only keep a device open if it's known to belong to a locked VG.
2366   Fix lvdisplay to show all mirror destinations.
2367   Replacement suspend code using libdevmapper dependency tree.
2368   Add DEFS to make.tmpl.
2369   Use dm_is_dm_major instead of local copy.
2370   Allow mapped devices to be used as PVs.
2371   Move set_selinux_context into libdevmapper.
2372   Fix automatic text metadata buffer expansion (using macro).
2373   Cache formatted text metadata buffer between metadata area writes.
2374   Add pe_start field to pvs.
2375   Add 'LVM-' prefix to uuids.
2376   Split lv_segment_area from lv_segment to permit extension.
2377   Replacement deactivation code using libdevmapper dependency tree.
2378   Simplify dev_manager_info().
2379   Attempt to load missing targets using modprobe.
2380   Add -a to lvscan.
2381   Move mknodes into libdevmapper.
2382   Move bitset, hash, pool and dbg_malloc into libdevmapper.
2383
2384 Version 2.01.15 - 16th October 2005
2385 ===================================
2386   Refuse to run pvcreate/pvremove on devices we can't open exclusively.
2387   Use ORPHAN lock definition throughout.
2388   Validate chunksize in lvcreate.
2389   Reduce chunksize limit to 512k.
2390   Fix chunksize field in reports.
2391   Don't hide snapshots from default 'lvs' output.
2392   Add is_dm_major() for use in duplicate device detection in lvmcache_add().
2393   Really switch device number in lvmcache when it says it is doing so.
2394   Option for bitset memory allocation using malloc as well as pool.
2395   Don't assume exactly two mirrors when parsing mirror status.
2396   Suppress fsync() error message on filesystems that don't support it.
2397   Fix yes_no_prompt() error handling.
2398   Add lvm.conf comment warning against multiple filter lines.
2399   Tidy lvmconf.sh.
2400   Add format1 dev_write debug messages.
2401   Add clustered VG attribute to report.
2402   Move lvconvert parameters into struct lvconvert_params.
2403   Add clustered VG flag to LV lock requests.
2404   Change LV locking macros to take lv instead of lvid.
2405   Prepend 'cluster' activation parameter to mirror log when appropriate.
2406   Pass exclusive flag to lv_activate and on to target activation code.
2407   Prevent snapshot creation in a clustered VG for now.
2408   Factor out adjusted_mirror_region_size() and generate_log_name_format().
2409   Move compose_log_line() into mirror directory.
2410   Factor out _get_library_path().
2411   Don't kill idling clvmd threads.
2412   clvmd no longer takes out locks for non-clustered LVs.
2413   Recognise ATA over Ethernet (aoe) devices.
2414
2415 Version 2.01.14 - 4th August 2005
2416 =================================
2417   Fix lvconvert PV parameter in help string.
2418   Prevent snapshots getting activated in a clustered VG.
2419   Separate out _build_dev_string.
2420   Move zero_lv to toollib.
2421   Fix pool format handler to work with pv segment code.
2422
2423 Version 2.01.13 - 13th July 2005
2424 ================================
2425   Fix pvmove segment splitting.
2426   Abstract vg_validate.
2427   Only make one attempt at contiguous allocation.
2428   Fix lvm1 format metadata read.
2429   Fix lvm1 format non-mirror lvcreate.
2430
2431 Version 2.01.12 - 14th June 2005
2432 ================================
2433   Various allocation-related pvmove fixes.
2434   Log an error if clvmd can't resolve a host name got from CCS.
2435   Fix potential spin loop in clvmd.
2436
2437 Version 2.01.11 - 13th June 2005
2438 ================================
2439   Added lvmconf.sh.
2440   Use matchpathcon mode parameter.
2441   Don't defer closing dead FDs in clvmd.
2442   Remove hard-coded 64k text metadata writing restriction.
2443   Make VG name restrictions consistent.
2444   Introduce lvconvert.  So far only removes mirror images.
2445   Allow mirror images to be resized.
2446   Allow mirror images to have more than one segment.
2447   Centralise restrictions on LV names.
2448   Always insert an intermediate layer for mirrors.
2449   Suppress hidden LVs from reports unless --all is given.
2450   Use square brackets for hidden LVs in reports.
2451   Allow the creation of mirrors with contiguous extents.
2452   Always perform sanity checks against metadata before committing it to disk.
2453   Split lv_extend into two steps: choosing extents + allocation to LV(s).
2454   Add mirror log region size to metadata.
2455   Use list_iterate_items throughout and add list*back macros.
2456   Introduce seg_ macros to access areas.
2457   Add segtype_is_ macros.
2458   Support tiny metadata areas for pool conversions.
2459   Mirror activation handles disk log as well as core.
2460   Activation code recognises mirror log dependency.
2461   Add mirror_log and regionsize fields to report.
2462   Fix non-orphan pvchange -u.
2463   Fix vgmerge to handle duplicate LVIDs.
2464   Move archiver code from tools into library.
2465   vgscan/change/display/vgs automatically create metadata backups if needed.
2466   Merge cloned allocation functions.
2467   Fix contiguous allocation policy with linear.
2468   Cope with missing format1 PVs again.
2469   Remove lists of free PV segments.
2470   Simplify pv_maps code and remove slow bitset algorithm.
2471   Red-Hat-ify the clvmd rhel4 initscript.
2472   %Zu->%zu
2473   Fix loopfiles alias alloc & mem debugging.
2474   Un-inline dbg_strdup.
2475   lv_reduce tidying.
2476   Remove some unnecessary parameters.
2477   Introduce seg_is macros.
2478
2479 Version 2.01.10 - 3rd May 2005
2480 ==============================
2481   Don't create backup and archive dirs till needed.
2482   Reinstate full PV size when removing from VG.
2483   Support loopfiles for testing.
2484   Tidy lv_segment interface.
2485   pv_segment support.
2486   vgchange --physicalextentsize
2487   Internal snapshot restructuring.
2488   Remove unused internal non-persistent snapshot option.
2489   Allow offline extension of snapshot volumes.
2490   Move from 2-step to 3-step on-disk metadata commit.
2491   Scan ramdisks too and allow non-O_DIRECT fallback.
2492   Annotate, tidy and extend list.h.
2493   Alignment tidying.
2494   Make clvmd work around some "bugs" in gulm's node state notifications.
2495   Tidy clvmd's SIGHUP handler
2496
2497 Version 2.01.09 - 4th April 2005
2498 ================================
2499   Add --ignorelockingfailure to vgmknodes.
2500   clvmd: Don't allow user operations to start until the lvm thread is fully up.
2501   clvmd-gulm: set KEEPALIVE on sockets.
2502
2503 Version 2.01.08 - 22nd March 2005
2504 =================================
2505   Add clustered attribute so vgchange can identify clustered VGs w/o locking.
2506   Improve detection of external changes affecting internal cache.
2507   Add 'already in device cache' debug message.
2508   Add -a to pvdisplay -C.
2509   Avoid rmdir opendir error messsages when dir was already removed.
2510   Tighten signal handlers.
2511   Avoid some compiler warnings.
2512   Additional rename failure error message.
2513   read/write may be macros.
2514   clvmd: don't take out lvm thread lock at startup, it only protects jobs list.
2515
2516 Version 2.01.07 - 8th March 2005
2517 ================================
2518   Cope with new devices appearing by rescanning /dev if a uuid can't be found.
2519   Remove DESTDIR from LVM_SHARED_PATH.
2520   clvmd fixes: make FDs close-on-exec
2521                gulm unlocks VG & orphan locks at startup in case they are stale
2522                gulm now unlocks VG & orphan locks if client dies.
2523
2524 Version 2.01.06 - 1st March 2005
2525 ================================
2526   Suppress 'open failed' error messages during scanning.
2527   Option to suppress warnings of file descriptors left open.
2528   Fix default value of metadatacopies in documentation (2->1).
2529   Fix clvmd-gulm locking.
2530   ./configure --enable-debug now enables debugging code in clvmd.
2531   Fix clvmd-gulm node up/down code so it actually works.
2532   clvmd-gulm now releases locks when shut down.
2533
2534 Version 2.01.05 - 18th February 2005
2535 ====================================
2536   Static binary invokes dynamic binary if appropriate.
2537   Make clvmd config check a little more tolerant.
2538   gulm clvmd can now cope with >1 message arriving in a TCP message.
2539
2540 Version 2.01.04 - 9th February 2005
2541 ===================================
2542   Add fixed offset to imported pool minor numbers.
2543   Update binary pathnames in clvmd_init_rhel4.
2544   lvm2cmd.so should skip the check for open fds.
2545   Remove unused -f from pvmove.
2546   Gulm clvmd doesn't report "connection refused" errors.
2547   clvmd does a basic config file sanity check at startup.
2548   Fix potential thread shutdown race in clvmd.
2549
2550 Version 2.01.03 - 1st February 2005
2551 ===================================
2552   More 64-bit display/report fixes.
2553   More informative startup mesg if can't create /etc/lvm.
2554   Fix snapshot device size bug (since 2.01.01).
2555   clvmd announces startup and cluster connection in syslog.
2556   Gulm clvmd doesn't hang trying to talk to a rebooted node.
2557   Gulm clvmd doesn't print cman error on startup.
2558
2559 Version 2.01.02 - 21st January 2005
2560 ===================================
2561   Update clvmd_init_rhel4: use lvm.static and don't load dlm.
2562   Fix some size_t printing.
2563   Fix 64 bit xlate consts.
2564   Split out pool sptype_names to avoid unused const.
2565   Always fail if random id generation fails.
2566   Recognise gnbd devices.
2567   Fix clvmd startup bug introduced in cman/gulm amalgamation.
2568   Improve reporting of node-specific locking errors.
2569
2570 Version 2.01.01 - 19th January 2005
2571 ===================================
2572   Fix clvmd lv_info_by_lvid open_count.
2573   Store snapshot and origin sizes separately.
2574   Update vgcreate man page.
2575
2576 Version 2.01.00 - 17th January 2005
2577 ===================================
2578   Fix vgscan metadata auto-correction.
2579   Only ask libdevmapper for open_count when we need it.
2580   Adjust RHEL4 clvmd init script priority.
2581   Enable building of CMAN & GULM versions of clvmd into a single binary
2582
2583 Version 2.00.33 - 7th January 2005
2584 ==================================
2585   pvcreate wipes first 4 sectors unless given --zero n.
2586   gulm clvmd now uses new ccsd key names.
2587   gulm clvmd now doesn't ignore the first node in cluster.conf
2588   Improve clvmd failure message if it's already running.
2589   Allow user to kill clvmd during initialisation.
2590   Fix off-by-one error in cluster_locking that could cause read hangs.
2591
2592 Version 2.00.32 - 22nd December 2004
2593 ====================================
2594   Drop static/dl restriction for now.
2595   Fix an error fprintf.
2596   Fix vgdisplay -s. Breaks (undocumented) lvs/pvs/vgs -s instead for now.
2597   Fix device reference counting on re-opens.
2598   Ignore sysfs symlinks when DT_UNKNOWN.
2599   Add clvmd init script for RHEL4.
2600   Skip devices that are too small to be PVs.
2601   Fix pvchange -x segfault with lvm2-format orphan.
2602   Cope with empty msdos partition tables.
2603   Add CONTRIBUTORS file.
2604
2605 Version 2.00.31 - 12th December 2004
2606 ====================================
2607   Reopen RO file descriptors RW if necessary.
2608
2609 Version 2.00.30 - 10th December 2004
2610 ====================================
2611   Additional device-handling debug messages.
2612   Additional verbosity level -vvvv includes line numbers and backtraces.
2613   Verbose messages now go to stderr not stdout.
2614   Close any stray file descriptors before starting.
2615   Refine partitionable checks for certain device types.
2616   Allow devices/types to override built-ins.
2617   Fix lvreduce man page .i->.I
2618   Fix vgsplit man page title.
2619   Fix clvmd man makefile.
2620   Extend dev_open logging.
2621   Make clvmd_fix_conf.sh UNDOable.
2622
2623 Version 2.00.29 - 27th November 2004
2624 ====================================
2625   xlate compilation fix.
2626
2627 Version 2.00.28 - 27th November 2004
2628 ====================================
2629   Fix partition table & md signature detection.
2630   Minor configure/makefile tidy.
2631   Export version.h from tools for clvmd.
2632
2633 Version 2.00.27 - 24th November 2004
2634 ====================================
2635   Trap large memory allocation requests.
2636   Fix to partition table detection code.
2637   Improve filter debug mesgs.
2638   Make clvmd_fix_conf.sh UNDOable
2639
2640 Version 2.00.26 - 23rd November 2004
2641 ====================================
2642   Improve pool debugging stats.
2643   Detect partition table signature.
2644   pvcreate wipes md superblocks. (With --uuid or --restorefile it prompts.)
2645   Separate out md superblock detection code.
2646   Prevent snapshot origin resizing.
2647   Improve a vgremove error message.
2648   Update some man pages.
2649   Allow y/n with -ae args (exclusive activation).
2650   Fixes to lvcreate vgname parsing.
2651   Fix dm_name string size calculation.
2652   Improve clvmd error reporting during startup.
2653   Make clvmd cope with large gaps in node numbers IDs.
2654   Make clvmd initialisation cope better with debugging output.
2655   Tidy clvmd socket callbacks so all work happens outside main loop.
2656   clvmd -V now displays lvm version too.
2657   Add optional gulm build for clvmd
2658
2659 Version 2.00.25 - 29th September 2004
2660 =====================================
2661   Fix return code from rm_link for vgmknodes.
2662   Make clvmd LV hash table thread-safe.
2663   Fix clvmd locking so it will lock out multiple users on the same node.
2664   Fix clvmd VG locking to it can cope with multiple VG locks.
2665   Remove spurious trailing dot in lvreduce man page.
2666   Fix vgremove locking.
2667
2668 Version 2.00.24 - 16th September 2004
2669 =====================================
2670   Fix pool_empty so it really does empty the memory pool.
2671   Rename old segtypes files to segtype.
2672   Some fixes to memory debugging code.
2673   Exclude internal commands formats & segtypes from install.
2674
2675 Version 2.00.23 - 15th September 2004
2676 =====================================
2677   Export dm name build & split functions.
2678   Use O_NOATIME on devices if available.
2679   Write log message when each segtype/format gets initialised.
2680   New commands 'segtypes' and 'formats'.
2681   Suppress pvmove abort message in test mode.
2682   Improve pvcreate/remove device not found error message.
2683   Allow pvmove to move data within the same PV.
2684   Describe how pvmove works on man page.
2685   Test for incompatible format/segtype combinations in lv_extend.
2686   Fix lvchange example on man page.
2687
2688 Version 2.00.22 - 3rd September 2004
2689 ====================================
2690   Fix /dev/vgname perms.
2691   Restructure xlate.h.
2692   Add clvmd man page.
2693
2694 Version 2.00.21 - 19th August 2004
2695 ==================================
2696   Update cnxman-socket.h from cman.
2697   Recognise iseries/vd devices.
2698   Use 'make install_cluster' to install cluster extensions only.
2699   Cope with DT_UNKNOWN in sysfs.
2700   Fix extents_moved metadata size comment.
2701   Remove duplicate line in pvremove help text.
2702   Support variable mirror region size.
2703   Support PE ranges in pvmove source PV.
2704   Fixes to as-yet-unused LV segment splitting code.
2705   Change alloc_areas to pe_ranges and allow suppression of availability checks.
2706   Add dev_size column to pvs.
2707   Add report columns for in-kernel device number.
2708
2709 Version 2.00.20 - 3 July 2004
2710 =============================
2711   More autoconf fixes.
2712   Fix device number handling for 2.6 kernels.
2713
2714 Version 2.00.19 - 29 June 2004
2715 ==============================
2716   Reduce severity of setlocale failure message.
2717   Recognise argv[0] "initrd-lvm" (pld-linux).
2718   Make -O2 configurable.
2719   Added --disable-selinux to configure script.
2720   LD_FLAGS->LDFLAGS & LD_DEPS->LDDEPS in configure script.
2721   Add init_debug to clvmd.
2722
2723 Version 2.00.18 - 24 June 2004
2724 ==============================
2725   Fix vgchange activation.
2726   Add cluster support.
2727
2728 Version 2.00.17 - 20 June 2004
2729 ==============================
2730   configure --enable-fsadm to try out fsadm.  fsadm is not tested yet.
2731   Display all filtered devices, not just PVs, with pvs -a.
2732   Fix sync_dir() when no / in filename
2733   vgcfgbackup -f accepts template with %s for VG name.
2734   Extend hash functions to handle non-null-terminated data.
2735   Add local activation support.
2736   Tidy relative paths in makefile includes.
2737   fsadm support for fsck and resizing - needs testing.
2738   Add read-only GFS pool support.
2739   Add lvm2create_initrd script from http://poochiereds.net/svn/lvm2/
2740   Fix rounding of large diplayed sizes.
2741   Suppress decimal point when using units of sectors/bytes.
2742   Additional kernel target checks before pvmove & snapshot creation.
2743   Add i2o_block.
2744
2745 Version 2.00.16 - 24 May 2004
2746 =============================
2747   Set area_count within alloc_lv_segment.
2748   Remove error labels from lvresize.
2749   Fix a pvs error path.
2750   xxchange -ae for exclusive activation.
2751   Don't return non-zero status if there aren't any volume groups.
2752   Add --alloc argument to tools.
2753   Rename allocation policies to contiguous, normal, anywhere, inherit.
2754   nextfree becomes normal; anywhere isn't implemented yet.
2755   LV inherits allocation policy from VG. Defaults: LV - inherit; VG - normal
2756   Additional status character added to vgs to indicate allocation policy.
2757   Add reset_fn to external_locking.
2758   Ensure presence of virtual targets before attempting activating.
2759   Attempt to fix resizing of snapshot origins.
2760   Restructure lvresize, bringing it closer to lvcreate.
2761   A quick sanity check on vg_disk struct when read in.  More checks needed.
2762   Only include visible LVs in active/open counts.
2763   Add virtual segment types, zero and error.  A large sparse device can be
2764 constructed as a writeable snapshot of a large zero segment.
2765   Add --type to lvcreate/resize.
2766   Push lv_create & alloc policy up to tool level.
2767   Fix pvdisplay return code.
2768   Detect invalid LV names in arg lists.
2769   Reporting uses line-at-a-time output.
2770   lvm2 format sets unlimited_vols format flag.
2771   Internal-only metadata flag support.
2772   Basic checking for presence of device-mapper targets.
2773   Separate out polldaemon.
2774   Revise internal locking semantics.
2775   Move find_pv_by_name to library.
2776   Rename move->copy.
2777   Add devices to segments report.
2778   Begin separating out segment code. There's a lot of change here.
2779   Compress any (obsolete) long LVM1 pvids encountered.
2780   Support for tagged config files.
2781   Don't abort operations if selinux present but disabled.
2782   Fix typo in configure which left HAVE_LIBDL unset.
2783
2784 Version 2.00.15 - 19 Apr 2004
2785 =============================
2786   configure --with-owner= --with-group= to avoid -o and -g args to 'install'
2787
2788 Version 2.00.14 - 16 Apr 2004
2789 =============================
2790   Use 64-bit file functions by default.
2791
2792 Version 2.00.13 - 16 Apr 2004
2793 =============================
2794   Set devices/md_component_detection = 1 to ignore devices containing md
2795   superblocks. [Luca Berra]
2796   Ignore error setting selinux file context if fs doesn't support it.
2797
2798 Version 2.00.12 - 14 Apr 2004
2799 =============================
2800   Install a default lvm.conf into /etc/lvm if there isn't one already.
2801   Allow different installation dir for lvm.static (configure --staticdir=)
2802   Fix inverted selinux error check.
2803   Recognise power2 in /proc/devices.
2804   Fix counting in lvs_in_vg_opened. [It ignored devices open more than once.]
2805
2806 Version 2.00.11 - 8 Apr 2004
2807 ============================
2808   Set fallback_to_lvm1 in lvm.conf (or configure --enable-lvm1_fallback)
2809   to run lvm1 binaries if running a 2.4 kernel without device-mapper.
2810
2811 Version 2.00.10 - 7 Apr 2004
2812 ============================
2813   More fixes for static build.
2814   Add basic selinux support.
2815   Fix sysfs detection.
2816
2817 Version 2.00.09 - 31 Mar 2004
2818 =============================
2819   Update copyright notices for Red Hat.
2820   Fix vgmknodes to remove dud /dev/mapper entries. (libdevmapper update reqd).
2821   Add LVM1-style colon output to vgdisplay.
2822   lvchange --refresh to reload active LVs.
2823   Add string display to memory leak dump.
2824   Add locking flags & memlock option.
2825   Add list_versions to library.
2826   Ignore open hidden LVs when checking if deactivation is OK.
2827   Suppress move percentage when device inactive.
2828   Add lv_info_by_lvid.
2829   Various tidy-ups to the build process.
2830   Rebaseline internal verbose level.
2831   Add --nolocking option for read operations if locking is failing.
2832   Add option to compile into a library.
2833   When compiled without libdevmapper, only print warning message once.
2834   Fix lvreduce PV extent calculations.
2835   Fix DESTDIR to work with configure path overrides.
2836   Always use / as config file separator & rename internal config file variables.
2837   Add support for tagging PV/VG/LVs and hosts.
2838   Fix rare bug in recognition of long cmdline argument forms.
2839   Add basic internationalisation infrastructure.
2840   Don't recurse symlinked dirs such as /dev/fd on 2.6 kernels.
2841   Update autoconf files.
2842   Add sysfs block device filtering for 2.6 kernels.
2843   Update refs for move to sources.redhat.com.
2844
2845 Friday 14th November 2003
2846 =========================
2847 Some bug fixes & minor enhancements, including:
2848   Backwards compatibility with LVM1 metadata improved.
2849   Missing man pages written.
2850   Tool error codes made more consistent.
2851   vgmknodes written.
2852   O_DIRECT can be turned off if it doesn't work in your kernel.
2853   dumpconfig to display the active configuration file
2854
2855 You need to update libdevmapper before using 'vgmknodes' or 'vgscan --mknodes'.
2856 If your root filesystem is on an LV, you should run one of those two
2857 commands to fix up the special files in /dev in your real root filesystem
2858 after finishing with your initrd.  Also, remember you can use
2859 'vgchange --ignorelockingfailure' on your initrd if the tool fails because
2860 it can't write a lock file to a read-only filesystem.
2861
2862 Wednesday 30th April 2003
2863 =========================
2864 A pvmove implementation is now available for the new metadata format.
2865
2866 When running a command that allocates space (e.g. lvcreate), you can now
2867 restrict not only which disk(s) may be used but also the Physical Extents
2868 on those disks.  e.g. lvcreate -L 10 vg1 /dev/hda6:1000-2000:3000-4000
2869
2870
2871 Monday 18th November 2002
2872 ========================
2873
2874 The new format of LVM metadata is ready for you to test!
2875   We expect it to be more efficient and more robust than the original format.
2876   It's more compact and supports transactional changes and replication.
2877   Should things go wrong on a system, it's human-readable (and editable).
2878
2879 Please report any problems you find to the mailing list,
2880 linux-lvm@sistina.com.  The software has NOT yet been thoroughly
2881 tested and so quite possibly there'll still be some bugs in it.
2882 Be aware of the disclaimer in the COPYING file.
2883
2884 While testing, we recommend turning logging on in the configuration file
2885 to provide us with diagnostic information:
2886   log {
2887         file="/tmp/lvm2.log"
2888         level=7
2889         activation=1
2890   }
2891
2892 You should schedule regular backups of your configuration file and
2893 metadata backups and archives (normally kept under /etc/lvm).
2894
2895 Please read docs/example.conf and "man lvm.conf" to find out more about
2896 the configuration file.
2897
2898 To convert an existing volume group called vg1 to the new format using
2899 the default settings, use "vgconvert -M2 vg1".  See "man vgconvert".
2900
2901 -M (or --metadatatype in its long form) is a new flag to indicate which
2902 format of metadata the command should use for anything it creates.
2903 Currently, the valid types are "lvm1" and "lvm2" and they can be
2904 abbreviated to "1" and "2" respectively.  The default value for this
2905 flag can be changed in the global section in the config file.
2906
2907 Backwards-compatible support for the original LVM1 metadata format is
2908 maintained, but it can be moved into a shared library or removed
2909 completely with configure's --with-lvm1 option.
2910
2911 Under LVM2, the basic unit of metadata is the volume group.  Different
2912 volume groups can use different formats of metadata - vg1 could use
2913 the original LVM1 format while vg2 used the new format - but you can't
2914 mix formats within a volume group.  So to add a PV to an LVM2-format
2915 volume group you must run "pvcreate -M2" on it, followed by "vgextend".
2916
2917 With LVM2-format metadata, lvextend will let you specify striping
2918 parameters.  So an LV could consist of two or more "segments" - the
2919 first segment could have 3 stripes while the second segment has just 2.
2920
2921 LVM2 maintains a backup of the current metadata for each volume group
2922 in /etc/lvm/backup, and puts copies of previous versions in
2923 /etc/lvm/archive.  "vgcfgbackup" and "vgcfgrestore" can be used to
2924 create and restore from these files.  If you fully understand what
2925 you're doing, metadata can be changed by editing a copy of a current
2926 backup file and using vgcfgrestore to reload it.
2927
2928 Please read the pvcreate man page for more information on the new
2929 format for metadata.
2930
2931 All tools that can change things have a --test flag which can be used
2932 to check the effect  of a set of cmdline args without really making the
2933 changes.
2934
2935
2936 What's not finished?
2937 ====================
2938 The internal cache.  If you turn on debugging output you'll see lots of
2939 repeated messages, many of which will eventually get optimised out.
2940
2941 --test sometimes causes a command to fail (e.g. vgconvert --test) even
2942 though the real command would work: again, fixing this is waiting for
2943 the work on the cache.
2944
2945 Several of the tools do not yet contain the logic to handle full
2946 recovery: combinations of pvcreate and vgcfgrestore may sometimes be
2947 needed to restore metadata if a tool gets interrupted or crashes or
2948 finds something unexpected.  This applies particularly to tools that
2949 work on more than one volume group at once (e.g. vgsplit).
2950
2951 Display output.  Some metadata information cannot yet be displayed.
2952
2953 Recovery tools to salvage "lost" metadata directly from the disks:
2954 but we hope the new format will mean such tools are hardly ever needed!