WHATS_NEW

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