WHATS_NEW

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