WHATS_NEW

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