WHATS_NEW

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