WHATS_NEW

   1 Version 2.02.97 -
   2 ===============================
   3   Count percentage of completeness upwards when merging a snapshot volume.
   4   Skip activation when using vg/lvchange --sysinit -a ay and lvmetad is active.
   5   Fix extending RAID 4/5/6 logical volumes
   6   Fix test for PV with unknown VG in process_each_pv to ignore ignored mdas.
   7   Update man pages with --activate ay option and auto_activation_volume_list.
   8   Fix _alloc_parallel_area to avoid picking already-full areas for raid devices.
   9   Use vgchange -aay instead of vgchange -ay in clmvd init script.
  10   Add activation/auto_activation_volume_list to lvm.conf.
  11   Add --activate ay to lvcreate, lvchange, pvscan and vgchange.
  12   Add support for volume autoactivation using lvmetad.
  13   Add --activate synonym for --available arg and prefer --activate.
  14   Never issue discards when LV extents are being reconfigured, not deleted.
  15   Allow release_lv_segment_area to fail as functions it calls can fail.
  16   Open device read-only to obtain readahead value.
  17   Fix lvconvert error path NULL pointer dereference.
  18   Check for create_instance() fail in pvscan_lvmetad_single().
  19   Use 64bit math for reserved memory and stack.
  20   Add tests for kernel_send() errors in cmirrod.
  21   Print clean_bits in pull_state, fix cut&paste typo in cmirrord.
  22   Add tests for errors from closedir(), close() in cmirrord.
  23   Fix missing sync of filesystem when creating thin volume snapshot.
  24
  25 Version 2.02.96 - 8th June 2012
  26 ===============================
  27   Upstream source repo now fedorahosted.org git not sources.redhat.com CVS.
  28   Fix error paths for regex filter initialization.
  29   Re-enable partial activation of non-thin LVs until it can be fixed. (2.02.90)
  30   Fix alloc cling to cling to PVs already found with contiguous policy.
  31   Fix cling policy not to behave like normal policy if no previous LV seg.
  32   Fix allocation loop not to use later policies when --alloc cling without tags.
  33   Append _TO_LVSEG to names of internal A_CONTIGUOUS and A_CLING flags.
  34   Add missing pkg init --with-systemdsystemunitdir in configure.in (2.02.92).
  35   Fix division by zero if PV with zero PE count is used during vgcfgrestore.
  36   Add initial support for thin pool lvconvert.
  37   Fix lvrename for thin volumes (regression in for_each_sub_lv). (2.02.89)
  38   Fix up-convert when mirror activation is controlled by volume_list and tags.
  39   Warn of deadlock risk when using snapshots of mirror segment type.
  40   Fix bug in cmirror that caused incorrect status info to print on some nodes.
  41   Remove statement that snapshots cannot be tagged from lvm man page.
  42   Disallow changing cluster attribute of VG while RAID LVs are active.
  43   Fix lvconvert error message for non-mergeable volumes.
  44   Allow subset of failed devices to be replaced in RAID LVs.
  45   Prevent resume from creating error devices that already exist from suspend.
  46   Improve clmvd singlenode locking for better testing.
  47   Update and correct lvs man page with supported column names.
  48   Handle replacement of an active device that goes missing with an error device.
  49   Change change raid1 segtype always to request a flush when suspending.
  50   Add udev info and context to lvmdump.
  51   Add lvmetad man page.
  52   Fix RAID device replacement code so that it works under snapshot.
  53   Fix inability to split RAID1 image while specifying a particular PV.
  54   Update man pages to give them all the same look&feel.
  55   Fix lvresize of thin pool for striped devices.
  56   For lvresize round upward when specifying number of extents.
  57   For lvcreate with %FREE support rounding downward stripe alignment.
  58   Change message severity to log_very_verbose for missing dev info in udev db.
  59   Fix lvconvert when specifying removal of a RAID device other than last one.
  60   Fix ability to handle failures in mirrored log in dmeventd plugin. (2.02.89)
  61   Fix unlocking volume group in vgreduce in error path.
  62   Cope when VG name is part of the supplied name in lvconvert --splitmirrors -n.
  63   Fix exclusive lvchange running from other node. (2.02.89)
  64   Add 'vgscan --cache' functionality for consistency with 'pvscan --cache'.
  65   Keep exclusive activation in pvmove if LV is already active.
  66   Disallow exclusive pvmove if some affected LVs are not exclusively activated.
  67   Remove unused and wrongly set cluster VG flag from clvmd lock query command.
  68   Fix pvmove for exclusively activated LV pvmove in clustered VG. (2.02.86)
  69   Always free hash table on update_pvid_to_vgid() in lvmetad.
  70   Update and fix monitoring of thin pool devices.
  71   Check hash insert success in lock_vg in clvmd.
  72   Check for buffer overwrite in get_cluster_type() in clvmd.
  73   Fix global/detect_internal_vg_cache_corruption config check.
  74   Update lcov Makefile target to support all dmeventd plugins.
  75   Fix initializiation of thin monitoring. (2.02.92)
  76   Cope with improperly formatted device numbers in /proc/devices. (2.02.91)
  77   Exit if LISTEN_PID environment variable incorrect in lvmetad systemd handover.
  78   Use pvscan --cache instead of vgscan in lvmetad scripts.
  79   Fix fsadm propagation of -e option.
  80   Fix fsadm parsing of /proc/mounts files (don't check for substrings).
  81   Fix fsadm usage of arguments with space.
  82   Fix arg_int_value alongside ARG_GROUPABLE --major/--minor for lvcreate/change.
  83   Fix name conflicts that prevent down-converting RAID1 when specifying a device
  84   Improve thin_check option passing and use configured path.
  85   Add --with-thin-check configure option for path to thin_check.
  86   Fix error message when pvmove LV activation fails with name already in use.
  87   Better structure layout for device_info in dev_subsystem_name().
  88   Change message severity for creation of VG over uninitialised devices.
  89   Fix error path for failed toolcontext creation.
  90   Detect lvm binary path in lvmetad udev rules.
  91   Don't unlink socket on lvmetad shutdown if instantiated from systemd.
  92   Restart lvmetad automatically from systemd if it exits from uncaught signal.
  93   Fix warn msg for thin pool chunk size and update man for chunksize. (2.02.89)
  94
  95 Version 2.02.95 - 6th March 2012
  96 ================================
  97   If unspecified, adjust thin pool metadata and chunk size to fit into 128MB.
  98   Print just warning on thin pool check callback path for failing check.
  99   Always use 64bit arithmetic with VG extent_size expression.
 100   Validate udev structures in _insert_udev_dir().
 101   Take repeatable --major --minor with pvscan --cache instead of major:minor.
 102   Scan all devices for lvmetad if 'pvscan --cache' used without device list.
 103   Populate lvmcache from lvmetad before displaying PVs in pvscan. (2.02.94)
 104   Suppress incorrect -n pvscan warning now always displayed. (2.02.94)
 105
 106 Version 2.02.94 - 3rd March 2012
 107 ================================
 108   Add support to execute thin_check with each de/active of thin pool.
 109   Fix automatic estimation of metadata device size for thin pool.
 110   Test for alloc fail from _alloc_pv_segment() in _extend_pv().
 111   Check for alloc fail from get_segtype_from_string() in _lvcreate_params().
 112   Add _rimage as reserved suffix to lvm.8 man page.
 113   Improve error logging from mpath filter.
 114   Check for allocation failure in hold_lock() in clvmd.
 115   Use set_lv() (wipe initial 4KiB) for non zeroed thin volume.
 116   Allow cluster mirrors to handle the absence of the checkpoint lib (libSaCkpt).
 117   Revert free of allocated segtype in init segment error path (2.02.89).
 118   Test dm_hash_insert() failures in filter-persistent.c and fid_add_mda().
 119   Ensure clvmd message is always NUL-terminated after read.
 120   Add some close() and dev_close() error path backtraces.
 121   Set stdin/stdout/stderr to /dev/null for polldaemon.
 122   Limit the max size of processed clvmd message to ~8KB.
 123   Do not send uninitialised bytes in cluster error reply messages.
 124   Use unsigned type for bitmask instead of enum type for lvm properties.
 125   Add missing cleanup of excl_uuid hash on some exit paths of clvmd.
 126   Check for existence of vg_name in _format1/_pool_vg_read().
 127   Fix missing break in _format_pvsegs (2.02.92).
 128   Test seg pointer for non-null it in raid_target_percent error path.
 129   Check for errors in _init_tags() during config loading.
 130   Always check result of _set_vg_name() in lvcreate.
 131   Drop unused call to uname() during clvmd initialization.
 132   Test allocation result in sysfs filter creation.
 133   Limit sscanf parameters with buffer size in clvmd get_initial_state().
 134   Use const lv pointer for lv_is_active...() functions.
 135   Use same signed numbers in _mirrored_transient_status().
 136   Support 'pvscan --cache' to update lvmetad state from specific PVs.
 137   Provide new metadata daemon for testing with configure --enable-lvmetad .
 138   Integrate client-side lvmetad into build.
 139
 140 Version 2.02.93 - 23rd February 2012
 141 ====================================
 142   Require number of stripes to be greater than parity devices in higher RAID.
 143   Fix allocation code to allow replacement of single RAID 4/5/6 device.
 144   Check all tags and LV names are in a valid form in vg_validate.
 145   Add tmpfiles.d style configuration for lvm2 lock and run directory.
 146   Add configure --with-tmpfilesdir for dir holding volatile-file configuration.
 147   Allow 'lvconvert --repair' to operate on RAID 4/5/6.
 148   Fix build_parallel_areas_from_lv to account correctly for raid parity devices.
 149   Print message when faulty raid devices have been replaced.
 150
 151 Version 2.02.92 - 20th February 2012
 152 ====================================
 153   Read dmeventd monitoring config settings for every lvm command.
 154   For thin devices, initialize monitoring only for thin pools not thin volumes.
 155   Make conversion from a synced 'mirror' to 'raid1' not cause a full resync.
 156   Properly test buffer for unit check in units_to_bytes().
 157   Add configure --with-systemdsystemunitdir.
 158   Add check for allocation failure in _build_matcher().
 159   Add check for rimage name allocation failure in _raid_add_images().
 160   Add check for mda_copy failure in _text_pv_setup().
 161   Add check for _mirrored_init_target failure.
 162   Add free_orphan_vg.
 163   Skip pv/vg_set_fid processing if the fid is same.
 164   Check for foreach loop errors in _vg_read_orphans() (2.02.91).
 165   Clean error paths for format instance creation (2.02.91).
 166   Release vg in error path of _format1_vg_read() instead of just free().
 167   Report allocation failure for allocation of PV structure.
 168   Add clvmd init dependency on dlm service when running with new corosync.
 169
 170 Version 2.02.91 - 12th February 2012
 171 ====================================
 172   Remove PV-based format instances (which are no longer needed).
 173   Link all orphan PVs directly to a per-format global orphan VG.
 174   Refactor lvmcache around an internal API.
 175   Stop processing lvextend if trying to extend a mirror that is being recovered.
 176   Add pool_below_threshold() function to check thin pool percent status.
 177   Fix test for snap percent for failing merge when removing LV.
 178   Switch int to void return for str_list_del().
 179   Fix error path handling in _build_desc().
 180   Add range test for device number in _scan_proc_dev().
 181   Use signed long for sysconf() call in cmirrord.
 182   Do not write in front of log buffer in print_log().
 183   Add boundary test for number of mirror devs and logs.
 184   Check that whole locking_dir fits _lock_dir buffer in init_file_locking().
 185   Use list functions for label_exit().
 186   Ensure strncpy() function always ends with '\0'.
 187   Set status in _fsadm_cmd() for error path.
 188   Add missing deps for lvm2api for rebuild when lvm-internal is changed.
 189   Fix resource leaks for failing allocation of formats (lvm1/2,pool).
 190   Release allocated resources in error path for composite_filter_create().
 191   Do not use lstat() results when failed in _rm_link().
 192   Remove a "waiting for another thread" log message from dmeventd plugins.
 193
 194 Version 2.02.90 - 1st February 2012
 195 ===================================
 196   sync_local_dev_names before (re)activating mirror log for initialisation.
 197   Disable partial activation for thin LVs and LVs with all missing segments.
 198   Do not print warning for pv_min_size between 512KB and 2MB.
 199   Clean up systemd unit ordering and requirements.
 200   Fix lcov reports when srcdir != builddir.
 201   Allow ALLOC_NORMAL to track reserved extents for log and data on same PV.
 202   Automatically detect whether corosync clvmd needs to use confdb or cmap.
 203   Fix data% report for thin volume used as origin for non-thin snapshot.
 204
 205 Version 2.02.89 - 26th January 2012
 206 ===================================
 207   Add missing check for uname result in clvmd TEST processing.
 208   Fix memleak in target_version() error path (unsupported LIST_VERSIONS).
 209   Limit data_alignment and data_alignment_offset to 32bit values.
 210   Check for correctness of uint64 dev_size value in format_text.
 211   Thin pools have segment fields thin_count, zero, transaction_id.
 212   Add data_percent and metadata_percent for thin pools to lvs -v.
 213   Add data_lv & metadata_lv fields to lvs for thin pools.
 214   Add data_percent & pool_lv fields to lvs for thin volumes.
 215   Rename origin_only parm to use_layer for lv_info and use with thin LVs.
 216   Add lv_thin_pool_transaction_id to read the transaction_id value.
 217   Use {suspend,resume}_origin_only when up-converting RAID, as mirrors do.
 218   Always add RAID metadata LVs to deptree (even when origin_only is set).
 219   Change exclusive LV activation logic to try local node before remote nodes.
 220   Add CLVMD_FLAG_REMOTE to skip processing on local node.
 221   Prompt if request is made to remove a snapshot whose "Merge failed".
 222   Allow removal of an invalid snapshot that was to be merged on next activation.
 223   Don't allow a user to merge an invalid snapshot.
 224   Use m and M lv_attr to indicate that a snapshot merge failed in lvs.
 225   Differentiate between snapshot status of "Invalid" and "Merge failed".
 226   Report snapshot usage percent of origin volume when a snapshot is merging.
 227   Require global/lvdisplay_shows_full_device_path for (bogus) lvm1-style paths.
 228   Do not report linear segtype for non-striped targets.
 229   Record creation host & time for each LV and report as lv_time & lv_host.
 230   Make error message hit when preallocated memlock memory exceeded clearer.
 231   Use R lv_attr to indicate read-only activation of non-read-only device in lvs.
 232   Show read-only activation override in lvdisplay & add 4 to perms in -c.
 233   Add activation/read_only_volume_list to override LV permission in metadata.
 234   Give priority to emcpower devices with duplicate PVIDs.
 235   Add check for error in _adjust_policy_params() (lvextend --use-policies).
 236   Round specified percentages upwards (%LV, %VG...) when resizing LVs.
 237   Use dmeventd_lvm2_command in dmeventd plugins snapshot, raid, mirror.
 238   Add helper dmeventd_lvm2_command() to libdevmapper-event-lvm2 library.
 239   Update documentation for dmeventd.
 240   Remove unnecessary stat before opening device in dev_open_flags.
 241   Reduce number of lstat calls when selecting device alias.
 242   Add _dev_init to initialize common struct device members.
 243   Always zalloc struct device during initialization.
 244   Fix missing thread list manipulation protection in dmeventd.
 245   Do not derefence lv pointer in _percent_run() function before NULL check.
 246   Allow empty strings for description and creation_host config fields.
 247   Issue deprecation warning when removing last lvm1-format snapshot.
 248   Reinstate support for snapshot removal with lvm1 format. (2.02.86)
 249   Add policy-based automated repair of RAID logical volumes.
 250   Don't allow two images to be split and tracked from a RAID LV at one time.
 251   Don't allow size change of RAID LV that is tracking changes for a split image.
 252   Don't allow size change of RAID sub-LVs independently.
 253   Don't allow name change of RAID LV that is tracking changes for a split image.
 254   Do not allow users to change the name of RAID sub-LVs independently.
 255   Do not allow users to change permissions on RAID sub-LVs.
 256   Allow lvconvert to replace specified devices in a RAID array.
 257   Add activation/use_linear_target enabled by default.
 258   Use gcc warning options only with .c to .o compilation.
 259   Move y/n prompts to stderr and repeat if response has both 'n' and 'y'.
 260   Replace the unit testing framework with CUnit (--enable-testing).
 261   Fix dmeventd snapshot monitoring when multiple extensions were involved.
 262   Don't ignore configure --mandir and --infodir.
 263   Drop pool memory allocated within lv_has_target_type().
 264   Reduce stack allocation of some PATH_MAX sized char buffers.
 265   Unlock memory before writing metadata.
 266   Add query before removing snapshots when inactive snapshot origin is removed.
 267   Allow changing availability state of snapshots.
 268   Skip non-virtual snapshots for availability change for lvchange with vg name.
 269   Skip adjusting mirror region size unless mirror or raid.
 270   Reorder prompt conditions for removal of active volumes.
 271   Avoid 'mda inconsistency' by properly registering UNLABELLED_PV flag.(2.02.86)
 272   Fix --enable-static_link unless using --enable-dmeventd / --enable-udev_sync.
 273   Move gentoo MAKEDEV to /sbin in lvm2create_initrd.
 274   Add filter to avoid scan of device if it is part of active multipath.
 275   Add missing default $LVM_VG_NAME usage for snapshots.
 276   Avoid extent_count overflow with lvextend.
 277   Add missing lvrename mirrored log recursion in for_each_sub_lv.
 278   Improve lv_extend stack reporting.
 279   Increase virtual segment size instead of creating multiple segment list.
 280   Add last_seg(lv) internal function.
 281   Support empty string for log/prefix.
 282   Disallow mirrored logs for cluster mirrors. (2.02.72)
 283   Don't print char type[8] as a plain string in pvck PV type.
 284   Use vg memory pool implicitly for vg read.
 285   Always use vg memory pool for allocated lv segment.
 286   Remove extra 4kB buffer allocated on stack in print_log().
 287   Make move_lv_segment non-static function and use dm_list function.
 288   Pass exclusive LV locks to all nodes in the cluster.
 289   Improve lvcreate chunksize man page description.
 290   Improve man page style for lvcreate & lvs.
 291   Avoid recursive calls to dmeventd in its LVM plugins.
 292   Log dev name now returned to kernel for registering during cmirror CTR.
 293   Fix lv_info open_count test for disabled verify_udev_operations. (2.02.86)
 294   Simplify code for lvm worker thread in clvmd.
 295   Use pthread_barrier to synchronize clvmd threads at startup.
 296   Limit clvmd's thread size to 128KiB and ignore activation/reserved_stack.
 297   Reduce default preallocated stack size to 64KiB.
 298   Add check for access through NULL pointer when refresh_filter() fails.
 299   Use pthread condition for SINGLENODE lock implementation.
 300   Improve backtrace reporting for some dev_manager_ functions.
 301   Change message severity to log_warn when symlink creation fails.
 302   Add ability to convert mirror segtype to RAID1 segtype.
 303   Add ability to convert from linear to RAID1.
 304   Add ability to extend mirrors with '--nosync' option.
 305   Fix splitmirror LV names to maintain consistent state in a cluster.
 306   Apply appropriate udev flags when suspending/resuming mirror sub-LVs.
 307   Fix vgsplit to handle mirrored logs.
 308   Clarify multi-name device filter pattern matching explanation in lvm.conf.
 309   Introduce revert_lv for better pvmove cleanup.
 310   Replace incomplete pvmove activation failure recovery code with a message.
 311   Abort if _finish_pvmove suspend_lvs fails instead of cleaning up incompletely.
 312   Change suspend_lvs to call vg_revert internally.
 313   Change vg_revert to void and remove superfluous calls after failed vg_commit.
 314   Use execvp for CLVMD restart to preserve environment settings.
 315   Restart CLVMD with same cluster manager.
 316   Fix log_error() usage in raid and unknown segtype initialisation.
 317   Improve testing Makefile.
 318   Fix install_ocf make target when srcdir != builddir. (2.02.80)
 319   Support env vars LVM_CLVMD_BINARY and LVM_BINARY in clvmd.
 320   Fix restart of clvmd (preserve exlusive locks). (2.02.64)
 321   Add 'Volume Type' lv_attr characters for RAID and RAID_IMAGE.
 322   Add activation/retry_deactivation to lvm.conf to retry deactivation of an LV.
 323   Replace open_count check with holders/mounted_fs check on lvremove path.
 324   Disallow the creation of mirrors (mirror or raid1 segtype) with only one leg.
 325   Cleanup restart clvmd code (no memory allocation, debug print passed args).
 326   Add all exclusive locks to clvmd restart option args.
 327   Always send the whole clvmd packet header in refresh commands.
 328   Add missing error checks for some system calls in cmirrord.
 329   Add missing log_error() to lvresize command when fsadm tool fails.
 330   Add support for DM_DEV_DIR device path into fsadm script.
 331   Support different PATH setting for fsadm script testing.
 332   Surround all executed commands with quotes in fsadm script.
 333   Fix missing '$' in test for content of "$LVM" in fsadm script.
 334   Move debug message in exec_cmd after sync_local_dev_names.
 335   Fix clvmd processing of invalid request on local socket.
 336   Fix command line option decoding.
 337   Reset LV status when unlinking LV from VG.
 338   Fix overly-strict extent-count divisibility requirements for striped mirrors.
 339   Fix rounding direction in lvresize when reducing volume size.
 340   Fix possible overflow of size if %FREE or %VG is used.
 341   Fix vgchange activation of snapshot with virtual origin.
 342   Activate virtual snapshot origin exclusively (only on local node in cluster).
 343   Fix lv_mirror_count to handle mirrored stripes properly.
 344   Fix failure to down-convert a mirror to linear due to udev "dev open" conflict
 345   Fix mirrored log creation when PE size is small: use log_size >= region_size.
 346   Fix log size calculation when only a log is being added to a mirror.
 347   Add 7th lv_attr char to show the related kernel target.
 348   Terminate pv_attr field correctly. (2.02.86)
 349   Fix 'not not' typo in pvcreate man page.
 350   Improve man page style for fsadm, lvreduce, lvremove, lvrename & lvresize.
 351   Support break for vgchange and vgrefresh operation.
 352   Switch int to unsigned type for pvmetadatacopies for pv_create().
 353   Replace :space: with [\t ] for awk in vgimportclone (not widely supported).
 354   Begin using 64-bit status field flags.
 355   Detect sscanf recovering_region input error in cmirrord pull_state().
 356   Fix error path bitmap leak in cmirrord import_checkpoint().
 357   Log unlink() error in cmirrord remove_lockfile().
 358   Remove incorrect requirement for -j or -m from lvchange error message.
 359   Fix unsafe table load when splitting off smaller mirror from a larger one.
 360   Use size_t return type for text_vg_export_raw() and export_vg_to_buffer().
 361   Add configure --enable-lvmetad for building the (experimental) LVMetaD.
 362   Fix resource leak when strdup fails in _get_device_status() (2.02.85).
 363   Directly allocate buffer memory in a pvck scan instead of using a mempool.
 364   Add configure --with-thin for segtypes "thin" and "thin_pool".
 365   Fix raid shared lib segtype registration (2.02.87).
 366
 367 Version 2.02.88 - 19th August 2011
 368 ==================================
 369   Remove incorrect 'Breaking' error message from allocation code. (2.02.87)
 370   Add lvconvert --merge support for raid1 devices split with --trackchanges.
 371   Support lvconvert of -m1 raid1 devices to a higher number.
 372   Add --trackchanges support to lvconvert --splitmirrors option for raid1.
 373   Support splitting off a single raid1 rimage in lvconvert --splitmirrors.
 374   Use sync_local_dev_names when reducing number of raid rimages in lvconvert.
 375   Add -V as short form of --virtualsize in lvcreate.
 376   Fix make clean not to remove Makefile.  (2.02.87)
 377
 378 Version 2.02.87 - 12th August 2011
 379 ==================================
 380   Fix make distclean to remove stray dmeventd and exported symbols files.
 381   Add global/detect_internal_vg_cache_corruption to lvm.conf.
 382   Use memory pool locking to check for corruption of internal VG structs.
 383   Cache and share generated VG structs.
 384   Fix possible format instance memory leaks and premature releases in _vg_read.
 385   Suppress locking error messages in monitoring init scripts.
 386   If pipe in clvmd fails return busy instead of using uninitialised descriptors.
 387   Add ability to reduce the number of mirrors in raid1 arrays to lvconvert.
 388   Add dmeventd plugin for raid.
 389   Replace free_vg with release_vg and move it to vg.c.
 390   Remove INCONSISTENT_VG flag from the code.
 391   Remove lock from cache in _lock_vol even if unlock fails.
 392   Initialise clvmd locks before lvm context to avoid open descriptor leaks.
 393   Remove obsolete gulm clvmd cluster locking support.
 394   Suppress low-level locking errors and warnings while using --sysinit.
 395   Remove unused inconsistent_seqno variable in _vg_read().
 396   Remove meaningless const type qualifiers on cast type.
 397   Add test for fcntl error in singlenode client code.
 398   Remove --force option from lvrename manpage.
 399   Add global/mirror_segtype_default to pick md raid or dm mirror as default.
 400   Add configure --with-raid for new segtype 'raid' for MD RAID 1/4/5/6 support.
 401   Change DEFAULT_UDEV_SYNC to 1 so udev_sync is used if there is no config file.
 402   Add systemd unit file to provide lvm2 monitoring.
 403   Compare file size (as well as timestamp) to detect changed config file.
 404
 405 Version 2.02.86 - 8th July 2011
 406 ===============================
 407   Remove unnecessary warning in pvcreate for MD linear devices.
 408   Move snapshot removal activation logic into lib/activate.
 409   Cope with a PV only discovered missing when creating deptree.
 410   Abort operation if dm_tree_node_add_target_area fails.
 411   Add activation/checks to lvm.conf to perform additional ioctl validation.
 412   Always preload on suspend, even if no metadata changed (lvchange --refresh).
 413   When suspending, automatically preload newly-visible existing LVs.
 414   Teardown any stray devices with $COMMON_PREFIX during test runs.
 415   Reinstate correct permissions when creating mirrors. [2.02.85]
 416   Append 'm' attribute to pv_attr for missing PVs.
 417   Annotate CLVMD_CMD_SYNC_NAMES in decode_cmd.
 418   Remove enforcement of udev verification when using non-standard /dev location.
 419   Keep an exclusive mirror non-clustered if reloaded e.g. during conversion.
 420   Reject allocation if number of extents is not divisible by area count.
 421   Fix cluster mirror creation to work with new mirror allocation algorithm.
 422   Ignore activation/verify_udev_operations if dm kernel driver vsn < 4.18.
 423   Add activation/verify_udev_operations to lvm.conf, disabled by default.
 424   Call vg_mark_partial_lvs() before VG structure is returned from the cache.
 425   Remove unused internal flag ACTIVATE_EXCL from the code.
 426   Remove useless test of ACTIVATE_EXCL in lv_add_mirrors() clustered code path.
 427   Add lv_activate_opts structure for activation (replacing activation flags).
 428   Ignore inconsistent pre-commit metadata on MISSING_PV devs while activating.
 429   Add proper udev library context initialization and finalization to liblvm.
 430   Fix last snapshot removal to avoid table reload while a device is suspended.
 431   Use dm_get_suspended_counter in replacement critical_section logic.
 432   Downgrade critical_section errors to debug level until it is moved to libdm.
 433   Fix ignored background polling default in vgchange -ay.
 434   Fix pvmove activation sequences to avoid trapped I/O with multiple LVs.
 435   Annotate critical section debug messages.
 436   Fix reduction of mirrors with striped segments to always align to stripe size.
 437   Validate mirror segments size.
 438   Include lvmetad development code in tree.
 439   Fix extent rounding for striped volumes never to reduce more than requested.
 440   Fix create_temp_name to replace any '/' found in the hostname with '?'.
 441   Always use append to file in lvmdump. selinux policy may ban file truncation.
 442   Propagate test mode to clvmd to skip activation and changes to held locks.
 443   Defer writing PV labels until vg_write.
 444   Store label_sector only in struct physical_volume.
 445   Permit --available with lvcreate so non-snapshot LVs need not be activated.
 446   Report sector containing label in verbose message.
 447   Clarify error message when unable to convert an LV into a snapshot of an LV.
 448   Add and use dev_open_readonly and variations.
 449   Do not log a superfluous stack message when the lv is properly processed.
 450   Do not issue an error message when unable to remove .cache on read-only fs.
 451   Avoid memlock size mismatch by preallocating stdio line buffers.
 452   Rewrite vgreduce --removemissing --force to share lvconvert code.
 453   Reorganize lvconvert --repair code to allow reuse.
 454
 455 Version 2.02.85 - 29th April 2011
 456 =================================
 457   Add new obtain_device_list_from_udev setting to lvm.conf.
 458   Obtain device list from udev by default if LVM2 is compiled with udev support.
 459   Add test for vgimportclone and querying of vgnames with duplicate pvs.
 460   Avoid use of released memory when duplicate PV is found.
 461   Add "devices/issue_discards" to lvm.conf.
 462   Issue discards on lvremove and lvreduce etc. if enabled and supported.
 463   Add seg_pe_ranges and devices fields to liblvm.
 464   Fix incorrect tests for dm_snprintf() failure.
 465   Fix some unmatching sign comparation gcc warnings in the code.
 466   Support lv_extend() on empty LVs.
 467   Avoid regenerating cache content when exported VG buffer is unchanged.
 468   Extend the set of memory regions that are not locked to memory.
 469   Workaround some problems when compiled for valgrind memcheck.
 470   Support controlled quit of the lvm_thread_fn function in clvmd.
 471   Fix reading of unallocated memory in lvm1 format import function.
 472   Replace several strncmp() calls with id_equal().
 473   Fix lvmcache_info transfer to orphan_vginfo in _lvmcache_update_vgname().
 474   Fix -Wold-style-definition gcc warnings.
 475   Rename MIRROR_NOTSYNCED to LV_NOTSYNCED.
 476   Fix _move_lv_segments to handle empty LVs.
 477   Fixes for lvconvert (including --repair) of temporary mirror stacks.
 478   Avoid potential loop when removing mirror images.
 479   Fix mirror removal always to take account of preferences as to which.
 480   Fix MIRRORED flag usage.
 481   Remove error messages issued by device_is_usable when run as non-root.
 482   Add missing \0 for grown debug object in _bitset_with_random_bits().
 483   Fix allocation of system_id buffer in volume_group structure.
 484   Fix readlink usage inside get_primary_dev().
 485   Use format instance mempool where possible and adequate.
 486   Call destroy_instance for any PVs found in VG structure during vg_free call.
 487   Add new free_pv_fid fn and use it throughout to free all attached fids.
 488   Use only vg_set_fid and new pv_set_fid fn to assign the format instance.
 489   Make create_text_context fn static and move it inside create_instance fn.
 490   Add mem and ref_count fields to struct format_instance for own mempool use.
 491   Use new alloc_fid fn for common format instance initialisation.
 492   Optimise _get_token() and _eat_space().
 493   Add _lv_postorder_vg() to improve efficiency for all LVs in VG.
 494   Add gdbinit script for debugging.
 495   Use hash tables to speedup string search in vg_validate().
 496   Refactor allocation of VG structure adding alloc_vg().
 497   Avoid possible endless loop in _free_vginfo when 4 or more VGs have same name.
 498   Use empty string instead of /dev// for LV path when there's no VG.
 499   Don't allocate unused VG mempool in _pvsegs_sub_single.
 500   Do not send uninitialised bytes in local clvmd messages.
 501   Support --help option for clvmd and return error for unknown option.
 502   Avoid reading freed memory when printing LV segment type.
 503   Fix syslog initialisation in clvmd to respect lvm.conf setting.
 504   Fix possible overflow in maximum stripe size and physical extent size.
 505   Improve pvremove error message when PV belongs to a VG.
 506   Extend normal policy to allow mirror logs on same PVs as images if necessary.
 507   Improve cling policy to recognise PVs already used during the transaction.
 508   Improve normal allocation algorithm to include clinging to existing areas.
 509   Add allocation/maximise_cling & mirror_logs_require_separate_pvs to lvm.conf.
 510   Adapt metadata balancing code to work with metadata handling changes.
 511   Add old_id field to physical_volume and fix pvchange -u for recent changes.
 512   Allow pvresize on a PV with two metadata areas.
 513   Change pvcreate to use new metadata handling interface.
 514   Restructure existing pv_setup and pv_write and add pv_initialise.
 515   Add internal interface to support adding and removing metadata areas.
 516   Allow internal indexing of metadata areas (PV id + mda order).
 517   Generalise internal format_instance infrastrusture for PV and VG use.
 518   Handle decimal digits with --units instead of ignoring them silently.
 519   Fix remaining warnings and compile with -Wpointer-arith.
 520   Fix gcc warnings for unused variables and const casts.
 521   Add stack backtraces for error paths in process_each_lv().
 522   Temporarily suppress error from calling yes_no_prompt while locks are held.
 523   Replace void* with char* arithmetic in _text_write, _text_read & send_message.
 524   Fix compilation without DEVMAPPER_SUPPORT.
 525   Remove fs_unlock() from lv_suspend error path.
 526   Allow memory to stay locked between leaving and re-entering critical sections.
 527   Rename memlock to critical_section throughout.
 528   Make pv_min_size configurable and increase to 2048KB to exclude floppy drives.
 529   Add find_config_tree_int64 to read 64-bit ints from config.
 530   Ensure resuming exclusive cluster mirror continues to use local mirror target.
 531   Clear temporary postorder LV status flags to allow re-use with same LV struct.
 532   Remove invalid snapshot umount mesg which floods syslog from dmeventd plugin.
 533   Add extended examples to pvmove man page.
 534   Support LVM_TEST_DEVDIR env var for private /dev during testing.
 535
 536 Version 2.02.84 - 9th February 2011
 537 ===================================
 538   Fix CRC32 calculation on big endian CPU (2.02.75).
 539
 540 Version 2.02.83 - 4th February 2011
 541 ===================================
 542   Allow exclusive activation of snapshots in a cluster.
 543   Leave EX lock unchanged when suspending a device in clvmd.
 544   Use sync_dev_names in unlock_vg macro for cluster-wide dev name sync.
 545   Fix fs operation stack handling when multiple operations on same device.
 546   Increase hash table size to 1024 lv names and 64 pv uuids.
 547   Remove fs_unlock() from lv_resume path.
 548   Fix wipe size when setting up mda.
 549   Remove unneeded checks for open_count in lv_info().
 550   Synchronize with udev before checking open_count in lv_info().
 551   Allow CLVMD_CMD_SYNC_NAMES to be propagated around the cluster if requested.
 552   Add "dmsetup ls --tree" output to lvmdump.
 553   Fix udev synchronization with no-locking --sysinit (2.02.80).
 554   Improve man page style consistency for pvcreate, pvremove, pvresize, pvscan.
 555   Avoid rebuilding of uuid validation table.
 556   Improve lvcreate error text from insufficient "extents" to "free space".
 557   Always use O_DIRECT when opening block devices to check for partitioning.
 558
 559 Version 2.02.82 - 24th January 2011
 560 ===================================
 561   Bring lvscan man page up-to-date.
 562   Fix lvchange --test to exit cleanly.
 563   Add change_tag to toollib.
 564   Allow multiple pvchange command line options to be specified together.
 565   Do not fail pvmove polling if another process cleaned up first.
 566   Avoid clvmd incrementing dlm lockspace reference count more than once.
 567   Add -f (don't fork) option to clvmd and fix clvmd -d<num> description.
 568
 569 Version 2.02.81 - 17th January 2011
 570 ===================================
 571   Do not scan devices in dev_reset_error_count().
 572   Skip unnecessary LOCK_NULL unlock call during volume deactivation.
 573   Skip fs_unlock when calling exec_cmd within activation code (for modprobe).
 574   Extend exec_cmd params to specify when device sync (fs_unlock) is needed.
 575   Replace fs_unlock by sync_local_dev_names to notify local clvmd. (2.02.80)
 576   Introduce sync_local_dev_names and CLVMD_CMD_SYNC_NAMES to issue fs_unlock.
 577   Accept fusion fio in device type filter.
 578   Add ability to convert mirror log type from disk to mirrored.
 579
 580 Version 2.02.80 - 10th January 2011
 581 ===================================
 582   Use same dm cookie for consecutive dm ops in same VG to reduce udev waits.
 583   Speed up command processing by caching resolved config tree.
 584   Pass config_tree to renamed function import_vg_from_config_tree().
 585   Detect NULL handle in get_property().
 586   Fix superfluous /usr in ocf_scriptdir instalation path.
 587   Add --with-ocfdir configurable option.
 588   Add aclocal.m4 (for pkgconfig).
 589   Fix memory leak in persistent filter creation error path.
 590   Check for errors setting up dm_task struct in _setup_task().
 591   Fail polldaemon creation when lvmcache_init() fails.
 592   Return PERCENT_INVALID for errors in _copy_percent() and _snap_percent().
 593   Remove some unused variables.
 594   Improve general lvconvert man page description.
 595   Return 0 from cmirrord initscript 'start' if daemon is already running.
 596   Fix wrongly paired unlocking of VG_GLOBAL in pvchange. (2.02.66)
 597   Add backtraces for backup and backup_remove fail paths.
 598   Detect errors from dm_task_set calls in _get_device_info (dmeventd).
 599   Add backtraces for archive and backup_locally in check_current_backup().
 600   Fix memory leak in debug mode of restart_clvmd() error path.
 601   Log error message for pthread_join() failure in clvmd.
 602
 603 Version 2.02.79 - 20th December 2010
 604 ====================================
 605   Remove some unused variables.
 606   Add missing test for reallocation error in _find_parallel_space().
 607   Add checks for allocation errors in config node cloning.
 608   Fix error path if regex engine cannot be created in _build_matcher().
 609   Use char* arithmetic in target_version(), _process_all() & _targets().
 610   Fixing const cast gcc warnings in the code.
 611   Check read() and close() results in _get_cmdline().
 612   Add const for struct config_node usage.
 613   Fix NULL pointer check in error path in clvmd do_command(). (2.02.78)
 614   Fix device.c #include to ensure 64-bit fopen64 use. (2.02.51)
 615   Add copy_percent and snap_percent to liblvm.
 616   Enhance vg_validate to ensure integrity of LV and PV structs referenced.
 617   Enhance vg_validate to check composition of pvmove LVs.
 618   Create /var/run/lvm directory during clvmd initialisation if missing.
 619   Use new dm_prepare_selinux_context instead of dm_set_selinux_context.
 620   Avoid revalidating the label cache immediately after scanning.
 621   Support scanning for a single VG in independent mdas.
 622   Don't skip full scan when independent mdas are present even if memlock is set.
 623   Set cmd->independent_metadata_areas if metadata/dirs or disk_areas in use.
 624   Cope better with an undefined target_percent operation in _percent_run.
 625   Avoid writing to freed memory in vg_release and rename to free_vg.  (2.02.78)
 626
 627 Version 2.02.78 - 6th December 2010
 628 ===================================
 629   Abort if segment tag allocation fails in pool format _add_stripe_seg.
 630   Abort in _mirrored_transient_status if referenced log/image LV is not active.
 631   Add backtraces for dev_set() and dev_close_immediate() errors in set_lv().
 632   Log any unlink() error in clvmd remove_lockfile().
 633   Log any pipe write() or close() errors in clvmd child_init_signal().
 634   Detect if orphan vginfo was lost from cache before _lvmcache_update_vgname().
 635   Do a full rescan if some device is missing in lvm1 format read_pvs_in_vg.
 636   Add missing check that dm_pool_create succeeded in write_config_node().
 637   Use dm_snprintf in clvmd-command.c to ensure an overlong buffer is truncated.
 638   Don't write to buffer if its reallocation failed in clvmd do_command().
 639   Switch from float to fixed point percentage handling.
 640   Avoid misleading missing PV warnings in vgextend --restoremissing.
 641   Fix memory leak when VG allocation policy in metadata is invalid.
 642   Ignore unrecognised allocation policy found in metadata instead of aborting.
 643   Factor out tag printing into _out_tags and avoid leaking string buffer.
 644   Remove some unused variables & assignments.
 645   Add missing vg_release calls in _vg_read_by_vgid.
 646   Fix debug logging of derived flag LCK_CACHE in clvmd.
 647   Fix test for no system_dir in _init_backup().
 648   Disallow lvconvert ops that both allocate & free supplied PEs in a single cmd.
 649   Fix liblvm seg_size to give bytes not sectors.
 650   Add functions to look up LV/PV by name/uuid to liblvm.
 651   Free cmd_context if fallback to LVM1 fails in lvm2_main().
 652   Free device name buffer in dmsetup parse_loop_device_name() error paths.
 653   Close format lib if init_format_fn fails in _init_formats().
 654   Don't leave /proc/mounts open after dmeventd snapshot event processing.
 655   Fix out-of-scope arg_vgnames use in process_each_lv().
 656   Remove incorrect dm_task_destroy(NULL) from _node_clear_table() error path.
 657   Add missing closedir in _rm_blks after removing stray LVM1 VG files.
 658   Suppress 'No PV label' message when removing several PVs without mdas.
 659   Fix default /etc/lvm permissions to be 0755. (2.02.66)
 660
 661 Version 2.02.77 - 22nd November 2010
 662 ====================================
 663   Allocate a pool for dummy VG in _pvsegs_sub_single.
 664   Add PV and LV segment types and functions to liblvm.
 665   Add set_property functions to liblvm.
 666   Remove tag length restriction and allow / = ! : # & characters.
 667   Support repetition of --addtag and --deltag arguments.
 668   Add infrastructure for specific cmdline arguments to be repeated in groups.
 669   Split the_args cmdline arguments and values into arg_props and arg_values.
 670   Fix fsadm no longer to require '-f' to resize an unmounted filesystem.
 671   Fix fsadm to detect mounted filesystems on older systems. (2.0.75)
 672   Extend cling allocation policy to recognise PV tags (cling_by_tags).
 673   Add allocation/cling_tag_list to lvm.conf.
 674   Regenerate configure with 'autoreconf' for --enable-ocf. (2.02.76)
 675
 676 Version 2.02.76 - 8th November 2010
 677 ===================================
 678   Clarify error messages when activation fails due to activation filter use.
 679   Add pacemaker script VolumeGroup.ocf with configure --enable-ocf.
 680   Import make.tmpl into include/ Makefile.
 681   Fix handling of online filesystem resize (using new fsadm return code).
 682   Add DIAGNOSTICS section to fsadm man page.
 683   Modify fsadm to return different status code for check of mounted filesystem.
 684   Update VG metadata only once in vgchange when making multiple changes.
 685   Allow independent vgchange arguments to be used together.
 686   Automatically unmount invalidated snapshots in dmeventd.
 687   Suppress some superfluous messages from clang static analysis.
 688   Fix a deadlock caused by double close in clvmd.
 689   Fix NULL pointer dereference on too-large MDA error path in _vg_read_raw_area.
 690   Use static for internal _align_chunk() and _new_chunk() from pool-fast.c.
 691   Fix vgchange to process -a, --refresh, --monitor and --poll like lvchange.
 692   Add lvm2app functions to query any pv, vg, or lv property / report field.
 693
 694 Version 2.02.75 - 25th October 2010
 695 ===================================
 696   Annotate more variables and parameters as const.
 697   Fix missing variable initialization in cluster_send() function from cmirrord.
 698   Fix pointer for VG name in _pv_resize_single error code path.
 699   Fix warning for changed alignment requirements for dmeventd read/write func.
 700   Add global/metadata_read_only to use unrepaired metadata in read-only cmds.
 701   Don't take write lock in vgchange --refresh, --poll or --monitor.
 702   Skip dm devices in scan if they contain only error targets or are empty.
 703   Fix strict-aliasing compile warning in partition table scanning.
 704   Fix pthread mutex usage deadlock in clvmd.
 705   Automatically extend snapshots with dmeventd according to policy in lvm.conf.
 706   Add activation/snapshot_autoextend_threshold/percent to lvm.conf.
 707   Fix liblvm2cmd link order to support --as-needed.
 708   Remove dependency on libm by replacing floor() by an integer-based algorithm.
 709   Fix hang when repairing a mirrored-log that had both devs fail.
 710   Convey need for snapshot-merge target in lvconvert error message and man page.
 711   Add devices/disable_after_error_count config to limit access to failing devs.
 712   Give correct error message when creating a too-small snapshot.
 713   Implement vgextend --restoremissing to reinstate missing devs that return.
 714   Make lvconvert respect --yes and --force when converting an inactive log.
 715   Refactor and add 'get' functions for lv properties/fields.
 716   Update script for fsadm testing.
 717   Better support of noninteractive shell execution of fsadm.
 718   Fix usage of --yes flag for ReiserFS resize in fsadm.
 719   Fix detection of mounted filesystems for fsadm when udev is used.
 720   Fix assignment of default value to LVM variable in fsadm.
 721   Fix support for --yes flag for fsadm.
 722   Do not execute lvresize from fsadm --dry-run.
 723   Fix fsadm return error code from user's break action.
 724   Allow CC to be overridden at build time (for 'scan-build make').
 725   Rename 'flags' to 'status' in struct metadata_area.
 726   Avoid segfault by limiting partial mode for lvm1 metadata. (2.02.74)
 727   Use dm_zalloc and dm_pool_zalloc throughout.
 728   Add pv_get_property and create generic internal _get_property function.
 729   Add 'get' functions for pv and vg properties/fields.
 730   Make generic GET_*_PROPERTY_FN macros with secondary macro for vg, pv & lv.
 731   Add tags_format_and_copy() common function and call from _tags_disp.
 732   Add id_format_and_copy() common function and call from _uuid_disp.
 733   Refactor report.c '*_disp' functions to call supporting functions.
 734   Move parts of metadata*.[ch] into new {pv|vg|lv}.[ch] files.
 735   Fix vg_read memory leak with directory-based metadata.
 736   Fix memory leak of config_tree in reinitialization code path.
 737   Fix pool destruction order in dmeventd_lvm2_exit() to avoid leak debug mesg.
 738   Read whole /proc/self/maps file before working with maps entries.
 739   Speed up unquoting of quoted double quotes and backslashes.
 740   Speed up CRC32 calculations by using a larger lookup table.
 741
 742 Version 2.02.74 - 24th September 2010
 743 =====================================
 744   Allow : and @ to be escaped with \ in device names of PVs.
 745   Replace alloca with dm_malloc in _aligned_io to avoid stack corruption.
 746   Fix partial mode operations for lvm1 metadata format.
 747   Track recursive filter iteration to avoid refreshing while in use. (2.02.56)
 748   Revert to old glibc vsnprintf behaviour in emit_to_buffer() to catch overflow.
 749   Allocate buffer for metadata tags dynamically to remove 4k limit.
 750   Add random suffix to archive file names to prevent races when being created.
 751   Reinitialize archive and backup handling on toolcontext refresh.
 752   Make poll_mirror_progress report PROGRESS_CHECK_FAILED if LV is not a mirror.
 753   Like mirrors, don't scan origins if ignore_suspended_devices() is set.
 754   Fix return type qualifier to avoid compiler warning. (2.02.69)
 755   Automatically generate LSB Requires-Start for clvmd init script.
 756   Fix return code of pvmove --abort PV.
 757   Fix pvmove --abort to remove even for empty pvmove LV.
 758   Add configure --with-default-data-alignment.
 759   Update heuristic used for default and detected data alignment.
 760   Add "devices/default_data_alignment" to lvm.conf.
 761   Add implementation for simple numeric 'get' property functions.
 762   Define GET_NUM_PROPERTY_FN macro to simplify numeric property 'get' function
 763   Add properties.[ch] to lib/report using columns.h.
 764   Add macro definitions to report infrastructure for character array length.
 765   Remove explicit double quotes from columns.h 'id' entries.
 766   Add 'flags' field to columns.h and define FIELD_MODIFIABLE.
 767   Add vg_mda_size and vg_mda_free functions.
 768   Simplify MD/swap signature detection in pvcreate and allow aborting.
 769   Allow --yes to be used without --force mode.
 770   Fix file descriptor leak in swap signature detection error path.
 771   Detect and allow abort in pvcreate if LUKS signature is detected.
 772   Always mask lock flags correctly when checking for LCK_WRITE.
 773
 774 Version 2.02.73 - 18th August 2010
 775 ==================================
 776   Fix potential for corruption during cluster mirror device failure.
 777   Use 'SINGLENODE' instead of 'dead' in clvmd singlenode messages.
 778   Ignore snapshots when performing mirror recovery beneath an origin.
 779   Pass LCK_ORIGIN_ONLY flag around cluster.
 780   Add suspend_lv_origin and resume_lv_origin using LCK_ORIGIN_ONLY.
 781   Allow internal suspend and resume of origin without its snapshots.
 782   Fix dev_manager_transient to access -real device not snapshot-origin.
 783   Monitor origin -real device below snapshot instead of overlay device.
 784   Don't really change monitoring status when in test mode.
 785   Fix some exit statuses when starting/stopping monitoring fails.
 786   Enable snapshot monitoring by default when dmeventd is enabled.
 787   Move cloned libdevmapper-event client code from segments into lib/activate.
 788   Fix 'lvconvert --splitmirrors' in cluster operation.
 789   Fix clvmd init script exit code to return 4 when executed as non-root user.
 790   Change default alignment of pe_start to 1MB.
 791   Add --norestorefile option to pvcreate.
 792   Require --restorefile when using pvcreate --uuid.
 793   Recognise and give preference to md device partitions (blkext major).
 794   Never scan internal LVM devices.
 795   Don't ignore user-specified PVs in split-mirror operations. (2.02.71)
 796   Fix data corruption bug in cluster mirrors.
 797   Require logical volume(s) to be explicitly named for lvconvert --merge.
 798   Avoid changing aligned pe_start as a side-effect of very verbose logging.
 799   Use built-in rule for device aliases: block/ < dm- < disk/ < mapper/ < other.
 800   Fix const warning in dev_manager_info() and _dev_manager_lv_rmnodes().
 801   Fix const warning in archive_file structure from archive.c.
 802   Clean generated files .exported_symbols_generated, example.conf for distclean.
 803   Handle failure of all mirrored log devices and all but one mirror leg.
 804   Disallow 'mirrored' log type for cluster mirrors.
 805   Do not use VPATH in include/Makefile.
 806   Fix exported_symbols generation to use standard compiler arguments.
 807   Use #include <> not "" in lvm2app.h which gets installed on the system.
 808   Make lib and liblvm.device-mapper wait for include file generation.
 809   Fix configure to supply DEFAULT_RUN_DIR to Makefiles.
 810   Fix allocation of wrong number of mirror logs with 'remove' fault policy.
 811
 812 Version 2.02.72 - 28th July 2010  [CVE-2010-2526]
 813 =================================================
 814   Change clvmd to communicate with lvm2 via a socket in /var/run/lvm.
 815   Return controlled error if clvmd is run by non-root user.
 816   Add configure --default-run-dir for /var/run/lvm.
 817   Never use clvmd singlenode unless explicitly requested with -Isinglenode.
 818
 819 Version 2.02.71 - 28th July 2010
 820 ================================
 821   Document LVM fault handling in doc/lvm_fault_handling.txt.
 822   Make vgck warn about missing PVs.
 823   Clarify help text for vg_mda_count.
 824   Check if cluster log daemon is running before allowing cmirror create.
 825   Add unit-tests dir.
 826   Add configure --enable-testing and reports and report-generators dirs.
 827   Correct LV list order used by lvconvert when splitting a mirror.
 828   Check if LV with specified name already exists when splitting a mirror.
 829   Fix suspend/resume logic for LVs resulting from splitting a mirror.
 830   Update pvcreate, {pv|vg}change, and lvm.conf man pages about metadataignore.
 831   Switch cmirrord and clvmd to use dm_create_lockfile.
 832   Allow clvmd pidfile to be configurable.
 833   Update comments about memory handling in lvm2app.h.
 834   Add more verbose messages while checking volume_list and hosttags settings.
 835   Add log_error when strdup fails in {vg|lv}_change_tag().
 836   Remove unnecessary includes in liblvm files.
 837   Use __attribute__ consistently throughout.
 838   Fix redundant declarations and always compile with -Wredundant-decls.
 839   Fix possible hang when all mirror images of a mirrored log fail.
 840   Pass metadataignore to pv_create, pv_setup, _mda_setup, and add_mda.
 841   Init mda->list in mda_copy.
 842   Do not log backtrace in valid _lv_resume() code path.
 843   Cleanup help strings in configure.in.
 844   Prompt if metadataignore with vgextend or pvchange would adjust vg_mda_copies.
 845   Adjust vg_mda_copies if metadataignore given with vgextend or pvchange.
 846   Adjust auto-metadata repair and caching logic to try to cope with empty mdas.
 847
 848 Version 2.02.70 - 6th July 2010
 849 ===============================
 850   Remove log directly if all mirror images of a mirrored log fail.
 851   Randomly select which mdas to use or ignore.
 852   Add some missing standard configure.in checks.
 853   Add printf format attributes to yes_no_prompt and fix a caller.
 854   Always pass unsuspended dm devices through persistent filter to other filters.
 855   Move test for suspended dm devices ahead of other filters.
 856   Fix another segfault in clvmd -R if no response from daemon. (2.02.68)
 857   Remove superfluous suspended device counter from clvmd.
 858   Fix lvm shell crash when input is entirely whitespace.
 859   Update partial mode warning message.
 860   Preserve memlock balance in clvmd when activation triggers a resume.
 861   Restore the removemissing behaviour of lvconvert --repair --use-policies.
 862
 863 Version 2.02.69 - 30th June 2010
 864 ================================
 865   Fix vgremove to allow removal of VG with missing PVs. (2.02.52)
 866   Add metadata/vgmetadatacopies to lvm.conf.
 867   Add --metadataignore to pvcreate and vgextend.
 868   Add vg_mda_copies, pv_mda_used_count and vg_mda_used_count to reports.
 869   Describe --vgmetadatacopies in lvm.conf and other man pages.
 870   Add --[vg]metadatacopies to select number of mdas to use in a VG.
 871   Make the metadata ignore bit control read/write metadata areas in a PV.
 872   Add pvchange --metadataignore to set or clear a metadata ignore bit.
 873   Refactor metadata code to prepare for --metadataignore / --vgmetadatacopies.
 874   Ensure region_size of mirrored log does not exceed its full size.
 875   Generate liblvm2app exported symbols from header file.
 876   Preload libc locale messages to prevent reading it in memory locked state.
 877   Fix handling of simultaneous mirror image and mirrored log image failure.
 878
 879 Version 2.02.68 - 23rd June 2010
 880 ================================
 881   Fix clvmd initscript status to print only active clustered LVs.
 882   Add lv_path to reports to offer full /dev pathname.
 883   Fix typo in warning message about missing device with allocated data areas.
 884   Add device name and offset to raw_read_mda_header error messages.
 885   Honour log argument when down-converting stacked mirror.
 886   Sleep to workaround clvmd -S race: socket closed early and server drops cmd.
 887   Use early udev synchronisation and update of dev nodes for clustered mirrors.
 888   Remove incorrect inclusion of kdev_t.h from cmirrord/functions.h.
 889   Add man pages for lvmconf and non-existent lvmsadc and lvmsar tools.
 890   Exit successfully when using -o help (but not -o +help) with LVM reports.
 891   Do not use internal DLM lock definitions in generic LVM2 clvmd code.
 892   Add --force, --nofsck and --resizefs to lvresize/extend/reduce man pages.
 893   Fix lvm2cmd example in documentation.
 894   Allow use of lvm2app and lvm2cmd headers in C++ code.
 895   Remove unused #includes from clvmd files and introduce clvmd-common.h.
 896   Move common inclusions to clvmd-common.h.
 897   Use #include "" for libdevmapper.h and configure.h throughout tree.
 898   Fix LVM_PATH expansion when exec_prefix=NONE. (2.02.67)
 899   Fix segfault in clvmd -R if no response from daemon received.
 900
 901 Version 2.02.67 - 4th June 2010
 902 ===============================
 903   Handle failed restart of clvmd using -S switch properly.
 904   Fix clvmd initscript restart command to start clvmd if not yet running.
 905   Use built-in absolute paths in clvmd (clvmd restart and PV and LV queries).
 906   Require partial option in lvchange --refresh for partial LVs.
 907   Do not fail lvm_init() if init_logging() or _init_rand() generates an errno.
 908   Don't merge unchanged persistent cache file before dumping if tool scanned.
 909   Fix incorrect memory pool deallocation while using vg_read for files.
 910   Add --type parameter description to the lvcreate man page.
 911   Replace strncmp kernel version number checks with proper ones.
 912   Avoid selecting names under /dev/block if there is an alternative.
 913   Update clustered log kernel module name to log-userspace for 2.6.31 onwards.
 914   Add replicators' LVs to dtree for activation.
 915   Supress activation message if there is a missing replicator VG.
 916   Fix scripts/relpath.awk to work in mawk
 917   Extend lock_vol to check for missing replicator VGs first.
 918   Update _process_one_vg and process_each_lv_in_vg to populate cmd_vg.
 919   Add cmd_vg structure and associated functions for replicator.
 920   Extend _lv_each_dependency() to handle replicator dependencies.
 921   Add check_replicator_segment() to catch internal replicator errors.
 922   Initial support for replicator metadata.
 923   Extend process_each_lv_in_vg() to provide list of failed lvnames.
 924   Consistently return ECMD_FAILED if process_each_*lv() is interrupted.
 925
 926 Version 2.02.66 - 20th May 2010
 927 ===============================
 928   If unable to obtain snapshot percentage leave value blank on reports.
 929   Add install_system_dirs and install_initscripts makefile targets.
 930   Add configure options for system and locking directories.
 931   Generate example.conf so default lvm.conf contents can be configured.
 932   Install lvmconf script by default.
 933   Remove unnecessary versioned dmeventd plugin symlinks.
 934   Add tests for lvm_vgname_from_{pvid|device}.
 935   Add lvm2app interfaces to lookup a vgname from a pvid and pvname.
 936   Update pvchange to always obtain a vg handle for each pv to process.
 937   Add find_vgname_from_{pvname|pvid} functions.
 938   Add pvid_from_devname and lvmcache_vgname_from_pvid lvmcache functions.
 939   Validate orphan and VG_GLOBAL lock order too.
 940   Accept orphan VG names as parameters to lock_vol() and related functions.
 941   Use is_orphan_vg in place of hard-coded prefix tests and add is_global_vg.
 942
 943 Version 2.02.65 - 17th May 2010
 944 ===============================
 945   Fix clvmd init script never to deactivate non-clustered volume groups.
 946   Disallow vgchange --clustered if there are active mirrors or snapshots.
 947   Introduce lv_is_mirrored.
 948   Use /bin/bash for scripts with bashisms.
 949   Skip internal lvm devices in scan if ignore_suspended_devices is set.
 950   Do not merge old device cache after we run full scan. (2.02.56)
 951   Add pkgconfigdir Makefile variable for make install override.
 952   Configure pkgconfig udev and selinux dependencies.
 953   Switch Libs.private to Requires.private in devmapper.pc and lvm2app.pc.
 954   Use pkgconfig Requires.private for devmapper-event.pc.
 955   Add libdevmapper to linked libdevmapper-event.so.
 956   Link liblvm2cmd.so with libdevmapper-event and libdevmapper.
 957   Fix truncated total size displayed by pvscan.
 958   Add new --sysinit compound option to vgchange and lvchange.
 959   Drop duplicate errors for read failures and missing devices to verbose level.
 960   Use $(libdir)/lvm2 with make install_lvm2_plugin.
 961   Use $(libdir)/device-mapper with make install_dm_plugin.
 962   Add dm_list_splice() function to join two lists together.
 963
 964 Version 2.02.64 - 30th April 2010
 965 =================================
 966   Avoid pointless initialisation when the 'version' command is run directly.
 967   Fix memory leak for invalid regex pattern input.
 968   Display invalid regex pattern for filter configuration in case of error.
 969   Remove no-longer-used arg_ptr_value.
 970   Fix -M and --type to use strings, not pointers that change on config refresh.
 971   Fix lvconvert error message when existing mirrored LV is not found.
 972   Set appropriate udev flags for reserved LVs.
 973   Disallow the direct removal of a merging snapshot.
 974   Don't preload the origin when removing a snapshot whose merge is pending.
 975   Disallow the addition of mirror images while a conversion is happening.
 976   Disallow primary mirror image removal when mirror is not in-sync.
 977   Remove obsolete --name parameter from vgcfgrestore.
 978   Add -S command to clvmd to restart the daemon preserving exclusive locks.
 979   Increment lvm2app version from 1 to 2 (memory allocation changes).
 980   Change lvm2app memory alloc/free for pv/vg/lv properties.
 981   Change daemon lock filename from lvm2_monitor to lvm2-monitor for consistency.
 982   Install symbolic .so links with relative paths between usrlibdir and libdir.
 983   Add awk script relpath.awk to calculate paths for relative symlinks.
 984   Use @AWK@ in makefiles.
 985   Fix double DESTDIR usage for infodir and mandir.
 986
 987 Version 2.02.63 - 14th April 2010
 988 =================================
 989   Rename lvm_dump.sh to lvmdump.sh.
 990   Allow incomplete mirror restore in lvconvert --repair upon insufficient space.
 991   Do not reset position in metadata ring buffer on vgrename and vgcfgrestore.
 992   Allow VGs with active LVs to be renamed.
 993   Use UUIDs instead of names while processing event handlers.
 994   Only pass visible LVs to tools in cmdline VG name/tag expansions without -a.
 995   Use typedefs for toollib process_each functions.
 996   Use C locales and use_mlockall for clvmd.
 997   Refactor code related to vg->pvs list and add pv->vg link.
 998   Mask LCK_HOLD flag in cluster VG locks for backwards compatibility.
 999   Add activation/polling_interval to lvm.conf as --interval default.
1000   Don't ignore error if resuming any LV fails in resume_lvs.
1001   Skip closing persistent filter cache file if open failed.
1002   Install .a and .so links into $(usrlibdir).
1003   Add --enable-write_install options to install user-writable files.
1004   Use INSTALL_PROGRAM/DATA/WDATA target.
1005   Switch from using VPATH  to vpath in Makefiles.
1006   Permit mimage LVs to be striped in lvcreate, lvresize and lvconvert.
1007   Fix pvmove allocation to take existing parallel stripes into account.
1008   Add pvmove_source_seg to struct lv_segment.
1009   Fix incorrect removal of symlinks after LV deactivation fails.
1010   Fix is_partitioned_dev not to attempt to reopen device.
1011   Fix another thread race in clvmd.
1012   Refactor management of vg->pvs list.
1013   Fix lcov rules and generate better coverage report.
1014   Improve vg_validate to detect some loops in lists.
1015   Change most remaining log_error WARNING messages to log_warn.
1016   Always use blocking lock for VGs and orphan locks.
1017   Allocate all memory for segments from private VG mempool.
1018   Return newly allocated PV segment after segment split.
1019   Optimise searching PV segments for seeking the most recently-added.
1020   Remove vg_validate call when parsing cached metadata.
1021   Use hash table of LVs to speed up parsing of text metadata with many LVs.
1022   Fix two vg_validate messages, adding whitespace and parentheses.
1023   When dmeventd is not forking because of -d flag, don't kill parent process.
1024   Fix 'make install' when $(builddir) is different from $(srcdir).
1025   Fix dso resource leak in error path of dmeventd.
1026   Use C locales and use_mlockall for dmeventd.
1027   Fix --alloc contiguous policy only to allocate one set of parallel areas.
1028   Do not allow {vg|lv}change --ignoremonitoring if on clustered VG.
1029   Improved dependency tracking for dmeventd and liblvm2cmd sources.
1030   Improved Makefile rules for distclean and cflow targets.
1031   Add ability to create mirrored logs for mirror LVs.
1032   Fix clvmd cluster propagation of dmeventd monitoring mode.
1033   Allow ALLOC_ANYWHERE to split contiguous areas.
1034   Use INTERNAL_ERROR for internal errors throughout tree.
1035   Add some assertions to allocation code.
1036   Introduce pv_area_used into allocation algorithm and add debug messages.
1037   Add activation/monitoring to lvm.conf.
1038   Add --monitor and --ignoremonitoring to lvcreate.
1039   Allow dynamic extension of array of areas selected as allocation candidates.
1040   Export and use only valid cookie value in test suite.
1041   Remove const modifier for struct volume_group* from process_each_lv_in_vg().
1042   Don't allow resizing of internal logical volumes.
1043   Fix libdevmapper-event pkgconfig version string to match libdevmapper.
1044   Avoid scanning all pvs in the system if operating on a device with mdas.
1045   Add configure --with-clvmd=singlenode to use clvmd w/o cluster infrastructure.
1046   Get stacktrace if testsuite test drops core and lvm was built with debugging.
1047   Disable long living process flag in lvm2app.
1048   Fix pvcreate device md filter check.
1049   Suppress repeated errors about the same missing PV uuids.
1050   Bypass full device scans when using internally-cached VG metadata.
1051   Only do one full device scan during each read of text format metadata.
1052   Remove unnecessary full_scan parameter from get_vgids and get_vgnames calls.
1053   Look up missing PVs by uuid not dev_name in _pvs_single to avoid invalid stat.
1054   Make find_pv_in_vg_by_uuid() return same type as related functions.
1055   Introduce is_missing_pv().
1056   Fix clvmd Makefile to not overwrite LIBS from template definition.
1057
1058 Version 2.02.62 - 9th March 2010
1059 ================================
1060   Add use_mlockall and mlock_filter to activation section of lvm.conf.
1061   Add default alternative to mlockall using mlock to reduce pinned memory size.
1062   Remove -rdynamic from static builds.
1063   Update checks for pthread, readline & selinux libs and link only when needed.
1064   Introduce makefile vars UDEV_LIBS, DL_LIBS, SELINUX_LIBS, STATIC_LIBS.
1065   Introduce makefile vars LVMINTERNAL_LIBS, READLINE_LIBS, PTHREAD_LIBS.
1066   Toggle configure help to print --disable-fsadm.
1067   Use $() instead of ${} consistently for all Makefile variables.
1068   Replace CFLOW_CMD only in make.tmpl and use it as variable elsewhere.
1069   Use $(top_builddir) for inclusion of make.tmpl in Makefiles.
1070   Fix autoconf warning about ignored datarootdir.
1071   Increase AC_PREREQ version to 2.61 (for AC_PROC_SED, AC_PROG_MKDIR_P).
1072   Handle misaligned devices that report alignment_offset of -1.
1073   Extend core allocation code in preparation for mirrored log areas.
1074   Rewrite clvmd init script.
1075   Remove lvs_in_vg_activated_by_uuid_only call.
1076   No longer fall back to looking up active devices by name if uuid not found.
1077   Don't touch /dev in vgmknodes if activation is disabled.
1078   Update lvm2app.h Doxygen comments and add lvm2app Doxygen config file.
1079   Update nightly tests and lvm2app unit tests to cover tags.
1080   Add lvm2app functions lvm_{vg|lv}_{get|add|remove}_tag() functions.
1081   Add dm_pool_strdup to allocate and copy memory in tag library function.
1082   Refactor vgcreate, vgchange, and lvchange for tag library function.
1083   Refactor snapshot-merge deptree and device removal to support info-by-uuid.
1084
1085 Version 2.02.61 - 15th February 2010
1086 ====================================
1087   Fix some consts and floating point gcc warnings.
1088   Fix dm_report_field_uint64 function to accept 64-bit ints.
1089   Change readhead display to use 32-bit -1 const instead of 64-bit.
1090   Add LVM_SUPPRESS_LOCKING_FAILURE_MESSAGES environment variable.
1091   Remove hard-coding that skipped _mimage devices from 11-dm-lvm.rules.
1092   Use udev transactions in test suite.
1093   Set udev state automatically instead of using LVM_UDEV_DISABLE_CHECKING.
1094   Add lvm_pv_get_size, lvm_pv_get_free and lvm_pv_get_dev_size to lvm2app.
1095   Change lvm2app to return all sizes in bytes as documented (not sectors).
1096   Add 'fail_if_percent_unsupported' arg to _percent and _percent_run.
1097   Remove false "failed to find tree node" error when activating merging origin.
1098   Exit with success when lvconvert --repair --use-policies performs no action.
1099   Accept a list of LVs with 'lvconvert --merge @tag' using process_each_lv.
1100   Avoid unnecessary second resync when adding mimage to core-logged mirror.
1101   Exclude internal VG names and uuids from lists returned through lvm2app.
1102   Add %ORIGIN support to lv{create,extend,reduce,resize} --extents.
1103   Add _mda_copy to clone a struct metadata_area.
1104   Remove pointless versioned symlinks to dmeventd plugin libraries.
1105   Fix dmeventd snapshot plugin build dependency.
1106   Make clvmd -V return status zero.
1107   Remove unnecessary 'dmsetup resume' following 'dmsetup create' in tests.
1108   Fix cmirrord segfault in clog_cpg list processing when converting mirror log.
1109   Deactivate temporary pvmove mirror cluster-wide when activating it fails.
1110   Always query device by uuid and not name in clvmd.
1111   Add missing metadata vg_reverts in pvmove error paths.
1112   Unlock shared lock in clvmd if activation calls fail.
1113   Return success from dev_manager_info with non-existent uuid if ioctl succeeds.
1114
1115 Version 2.02.60 - 23rd January 2010
1116 ===================================
1117   Extend cmirrord man page.
1118   Sleep before first progress check if pvmove/lvconvert interval has prefix '+'.
1119   Default to checking progress before waiting in _wait_for_single_lv.
1120   Fix cmirror initscript (including syntax error).
1121   Eliminate avoidable ioctls for checking open_count in _add_new_lv_to_dtree.
1122   Disable memory debugging if dmeventd is configured. (Not thread-safe.)
1123   Fix first log message prefix in syslog for dmeventd plugins.
1124   Fix exported symbols names for dmeventd lvm2 wrapper plugin.
1125   Make failed locking initialisation messages more descriptive.
1126
1127 Version 2.02.59 - 21st January 2010
1128 ===================================
1129   Add libdevmapper-event-lvm2.so to serialise dmeventd plugin liblvm2cmd use.
1130   Cleanup memory initialization and freeing in pv_read() and pv_create().
1131   Clear pointer and counters after their release in _fin_commands().
1132   Stop dmeventd trying to access already-removed snapshots.
1133   Remove (fallback) /dev mknod from cmirrord.
1134   Add t-topology-support.sh and t-snapshot-merge.sh tests.
1135   Fix clvmd to never scan suspended devices.
1136   Fix dmeventd build outside source tree.
1137   Assorted cmirror code changes to remove various compiler warnings.
1138   Fix detection of completed snapshot merge.
1139   Add Red Hat cmirror initscript (unfinished).
1140   Add cmirrord man page (incomplete).
1141   Make cluster log communication structures architecture independant.
1142   Fix cluster log in-memory bitmap handling.
1143   Improve snapshot merge metadata import validation.
1144   Improve target type compatibility checking in _percent_run().
1145   Add 'target_status_compatible' method to 'struct segtype_handler'.
1146   Change underscore to hyphen in table line for clustered log type.
1147
1148 Version 2.02.58 - 14th January 2010
1149 ===================================
1150   Cleanup some minor gcc warnings.
1151   Add --merge to lvconvert to merge a snapshot into its origin.
1152   Fix clvmd automatic target module loading crash (no reset_locking fn).
1153   Fix allocation code not to stop at the first area of a PV that fits.
1154
1155 Version 2.02.57 - 12th January 2010
1156 ===================================
1157   Ensure exactly one process returns from poll_daemon(), never two.
1158   Reset _vgs_locked in lvmcache_init() in child after forking.
1159   Define {DM, LVM}_UDEV_DISABLE_CHECKING=1 environment variables during tests.
1160   Enable udev_sync and udev_rules in lvm.conf by default while running tests.
1161   If LVM_UDEV_DISABLE_CHECKING in set in environment, disable udev warnings.
1162   Add --splitmirrors to lvconvert to split off part of a mirror.
1163   Change background polldaemon's process name to "(lvm2)".
1164   Allow vgremove to remove a VG with PVs missing after a prompt.
1165   Return success in lvconvert --repair --use-policies on failed allocation.
1166   Keep log type consistent when changing mirror image count.
1167   Always set environment variables for an LVM2 device in 11-dm-lvm.rules.
1168   Add activation/udev_rules config option in lvm.conf.
1169   Add consts to text metadata flag structs.
1170   Add macros outfc, outsize, outhint and function out_text_with_comment.
1171   Reimplement report FIELD macro using offsetof instead of static structs.
1172   Fix fsadm man page typo (fsdam).
1173   Rename mirror_device_fault_policy to mirror_image_fault policy.
1174   Remove empty PV devices if lvconvert --repair is using defined policies.
1175   Use fixed buffer to prevent stack overflow in persistent filter dump.
1176   Use extended status of new kernel snapshot target 1.8.0 to detect when empty.
1177   Insert stack macros in suspend_lv, resume_lv & (de)activate_lv callers.
1178   Add --poll flag to vgchange and lvchange to control background daemon launch.
1179   Propagate metadata commit and revert notifications to other cluster nodes.
1180   Use proper mask for VG lock mode in clvmd.
1181   Allow precommitted metadata to be dropped from lvmcache.
1182   Move processing of VG locks to separate function in clvmd.
1183   Properly decode all flags in clvmd messages including VG locks.
1184   Properly handle precommitted cache flag when only committed metadata present.
1185   Resume renamed volumes in reverse order to preserve memlock pairing.
1186   Drop cached metadata after device was auto-repaired and removed from VG.
1187   Clear MISSING_PV flag if PV reappeared and is empty.
1188   Fix removal of multiple devices from a mirror.
1189   Also clean up PVs flagged as missing in vgreduce --removemissing --force.
1190   Introduce INTERNAL_ERROR macro for error messages and use throughout.
1191   Remove superfluous returns from void functions.
1192   Destroy allocated mempool in _vg_read_orphans() error path.
1193   Fix some pvresize and toollib error paths with missing VG releases/unlocks.
1194   Explicitly call suspend for temporary mirror layer.
1195   Allow use of precommitted metadata when a PV is missing.
1196   Add memlock information to do_lock_lv debug output.
1197   Always bypass calls to remote cluster nodes for non-clustered VGs.
1198   Permit implicit cluster lock conversion in pre/post callbacks on local node.
1199   Permit implicit cluster lock conversion to the lock mode already held.
1200   Fix lock flag masking in clvmd so intended code paths get invoked.
1201   Replace magic masks in cluster locking code by defined masks.
1202   Remove newly-created mirror log from metadata if initial deactivation fails.
1203   Correct activated or deactivated text in vgchange summary message.
1204   Improve pvmove error message when all source LVs are skipped.
1205   Fix memlock imbalance in lv_suspend if already suspended.
1206   Fix pvmove test mode not to poll (and fail).
1207   Fix vgcreate error message if VG already exists.
1208   Fix tools to use log_error when aborted due to user response to prompt.
1209   Fix ignored readahead setting in lvcreate --readahead.
1210   Fix clvmd memory leak in lv_info_by_lvid by calling release_vg.
1211   If aborting due to internal error, always send that message to stderr.
1212   Add global/abort_on_internal_errors to lvm.conf to assist testing.
1213   Fix test Makefiles when builddir and srcdir differ.
1214   Impose limit of 8 mirror images to match the in-kernel kcopyd restriction.
1215   Use locking_type 3 (compiled in) for lvmconf --enable-cluster.
1216   Remove list.c and list.h with no-longer-used dm_list macros and functions.
1217   Log failure type and recognise type 'F' (flush) in dmeventd mirror plugin.
1218   Extend internal PV/VG/LV/segment status variables from 32-bit to 64-bit.
1219
1220 Version 2.02.56 - 24th November 2009
1221 ====================================
1222   Add missing vg_release to pvs and pvdisplay to fix memory leak.
1223   Do not try to unlock VG which is not locked in _process_one_vg.
1224   Move is_long_lived persistent_filter_dump to happen after every full scan.
1225   Refresh device filters before full device rescan in lvmcache.
1226   Return error status if vgchange fails to activate some volume.
1227   Fix suspend/resume lock type test causing unbalanced memory locking.
1228   Revert vg_read_internal change as clvmd was not ready for vg_read. (2.02.55)
1229
1230 Version 2.02.55 - 19th November 2009
1231 ====================================
1232   Fix deadlock when changing mirrors due to unpaired memlock refcount changes.
1233   Use separate memlock counter for dmeventd handlers to permit device scanning.
1234   Directly restrict vgchange to activating visible LVs.
1235   Fix pvmove region_size overflow for very large PVs.
1236   Fix lvcreate and lvresize %PVS argument always to use sensible total size.
1237   Tidy some uses of arg_count and introduce arg_is_set.
1238   Export outnl and indent functions for modules.
1239   Flush stdout after yes/no prompt.
1240   Update vgsplit and vgcreate to use vg_set_clustered.
1241   Add vg_mda_count and vg_set_clustered library functions.
1242   Add more vgcreate and vgsplit nightly tests.
1243   Insert some missing stack macros into activation code.
1244   Recognise DRBD devices and handle them like md devices.
1245
1246 Version 2.02.54 - 26th October 2009
1247 ===================================
1248   Update lvcreate/lvconvert man pages to explain PhysicalVolume parameter.
1249   Document --all option in man pages, cleanup {pv|vg|lv}{s|display} man pages.
1250   Permit snapshots of mirrors.
1251   Cleanup mimagetmp LV if allocation fails for new lvconvert mimage.
1252   Fix clvmd segfault when refresh_toolcontext fails.
1253   Remember to clear 'global lock held during cache refresh' state after use.
1254   Use udev flags support in LVM and apply various fixes to udev rules.
1255   Delay announcing mirror monitoring to syslog until initialisation succeeded.
1256   Handle metadata with unknown segment types more gracefully.
1257   Set default owner and group to null.
1258   Add dmeventd.static to the build.
1259   Disable realtime support code by default.
1260   Make clvmd return 0 on success rather than 1.
1261   Add --pvmetadatacopies for pvcreate, vgcreate, vgextend, vgconvert.
1262   Add implict pvcreate support to vgcreate and vgextend.
1263   Correct example.conf to indicate that lvm2 not lvm1 is the default format.
1264   Remove an unused stray LVM1_SUPPORT ifdef.
1265   Only include selinux libs in libdevmapper.pc when selinux build enabled.
1266   Allow for a build directory separate from the source.
1267   Update distclean target for rename clogd to cmirrord. (2.02.52)
1268   Only do lock conversions in clvmd if we are explicitly asked for one.
1269   Introduce percent_range_t and centralise snapshot full/mirror in-sync checks.
1270   Factor out poll_mirror_progress and introduce progress_t.
1271   Distinguish between powers of 1000 and powers of 1024 in unit suffixes.
1272   Restart lvconverts in vgchange by sharing lv_spawn_background_polling.
1273   Generalise polldaemon code by changing mirror-specific variable names.
1274   Don't attempt to deactivate an LV if any of its snapshots are in use.
1275   Return error if lv_deactivate fails to remove device from kernel.
1276   Provide alternative implementation of obsolete siginterrupt().
1277   Consolidate LV allocation into alloc_lv().
1278   Treat input units of both 's' and 'S' as 512-byte sectors.  (2.02.49)
1279   Use standard output units for 'PE Size' and 'Stripe size' in pv/lvdisplay.
1280   Add configure --enable-units-compat to set si_unit_consistency off by default.
1281   Add global/si_unit_consistency to enable cleaned-up use of units in output.
1282
1283 Version 2.02.53 - 25th September 2009
1284 =====================================
1285   Create any directories in /dev with DM_DEV_DIR_UMASK (022).
1286   Enable dmeventd monitoring section of config file by default.
1287   Update lvm2 monitoring script to lvm2_monitoring_init_red_hat.in.
1288   Fix lvm2app test to run under test/api subdirectory only when configured.
1289   Add vg_is_resizeable() and cleanup reference to VG_RESIZEABLE.
1290
1291 Version 2.02.52 - 15th September 2009
1292 =====================================
1293   Update _process_one_vg to cleanup properly after vg_read_error.
1294   Add lots of missing stack debug messages to tools.
1295   Make readonly locking available as locking type 4.
1296   Fix readonly locking to permit writeable global locks (for vgscan). (2.02.49)
1297   Add DM_UDEV_RULES_VSN environment variable to udev rules.
1298   Update vgsplit, vgmerge, and vgrename to obey new vgname ordering rules.
1299   Make lvm2app pv_t, lv_t, vg_t handle definitions consistent with lvm_t.
1300   Enforce an alphabetical lock ordering on vgname locking.
1301   Prioritise write locks over read locks by default for file locking.
1302   Add local lock files with suffix ':aux' to serialise locking requests.
1303   Fix global locking in PV reporting commands (2.02.49).
1304   Fix pvcreate string termination in duplicate uuid warning message.
1305   Don't loop reading sysfs with pvcreate on a non-blkext partition (2.02.51).
1306   Fix vgcfgrestore error paths when locking fails (2.02.49).
1307   Update Makefile distclean target.
1308   Add libudev configuration check.
1309   Make clvmd check corosync to see what cluster interface it should use.
1310   Add clvmd autodetection check and cleanup related configure messages.
1311   Rewrite clvmd configuration code to cope with all combinations of libs.
1312   Added configure --enable-cmirrord to build the cluster mirror log daemon.
1313   Rename clogd to cmirrord.
1314   Make lvchange --refresh only take a read lock on volume group.
1315   Fix race where non-blocking file locks could be granted in error.
1316   Fix vgextend error path - if ORPHAN lock fails, unlock / release vg (2.02.49).
1317   Fix compile warning in clvmd.
1318   Clarify use of PE ranges in lv{convert|create|extend|resize} man pages.
1319   Remove useless _pv_write wrapper.
1320   Add lvm2app.sh to tests conditional upon configure --enable-applib.
1321   Add lvm_vg_is_clustered, lvm_vg_is_exported, and lvm_vg_is_partial.
1322   Update lvm_vg_remove to require lvm_vg_write to commit remove to disk.
1323   Update test/api/test.c to call lvm_vg_create and lvm_vg_remove.
1324
1325 Version 2.02.51 - 6th August 2009
1326 =================================
1327   Fix locking in clvmd (2.02.50).
1328   Add --noudevsync option for relevant LVM tools.
1329   Add activation/udev_sync to lvm.conf.
1330   Only change LV symlinks on ACTIVATE not PRELOAD.
1331   Make lvconvert honour log mirror options combined with downconversion.
1332   Allow LV suspend while --ignorelockingfailure is in force.
1333   Update synopsis in lvconvert manpage to mention --repair.
1334   Set cookies in activation code and wait for udev to complete processing.
1335   Added configure --enable-udev_rules --enable-udev_sync.
1336   Added configure --with-udev-prefix --with-udevdir.
1337   Added udev dir to hold udev rules.
1338   Add devices/data_alignment_detection to lvm.conf.
1339   Add devices/data_alignment_offset_detection to lvm.conf.
1340   Add --dataalignmentoffset to pvcreate to shift start of aligned data area.
1341   Fix _mda_setup() to not check first mda's size before pe_align rounding.
1342   Document -I option of clvmd in the man page.
1343   Fix configure script to handle multiple clvmd selections.
1344   Fix lvm2app.pc installation filename.
1345   Remove pv_t, vg_t & lv_t handles from lib.  Only liblvm uses them.
1346   Rename lvm.h to lvm2app.h for now.
1347
1348 Version 2.02.50 - 28th July 2009
1349 ================================
1350   Change test/api/test.c prompt so it's not confused with the main lvm prompt.
1351   Update liblvm unit tests in test/api to cover latest liblvm changes.
1352   Add unimplemented lvm_lv_resize and lvm_pv_resize skeletons to liblvm.
1353   Add lvm_library_get_version to liblvm.
1354   Add lvm_config_override to liblvm to allow caller to override LVM config.
1355   Add lvm_lv_is_active and lvm_lv_is_suspended to liblvm.
1356   Add lvm_lv_activate and lvm_lv_deactivate to liblvm.
1357   Add lvm_scan, lvm_vg_reduce and lvm_vg_remove_lv to liblvm.
1358   Add functions to get numeric properties to liblvm.
1359   Add lvm_{pv|vg|lv}_get_{name|uuid} to liblvm.
1360   Add lvm_vg_list_pvs and lvm_vg_list_lvs to liblvm.
1361   Add lvm_vg_open and lvm_vg_create_lv_linear to liblvm.
1362   Add lvm_list_vg_names/uuids to liblvm.
1363   Add lvm_errno and lvm_errmsg to liblvm to obtain failure information.
1364   Rename lvm_create/destroy to lvm_init/quit.
1365   Rename lvm_reload_config to lvm_config_reload.
1366   Refactor _override_settings to use new override_config_tree_from_string.
1367   Add vg_reduce to metadata.c and metadata-exported.h.
1368   Update lvm.h to clarify API behavior and return codes.
1369   Update lvm_vg_extend to do an implicit pvcreate on the device.
1370   Update display.c to use vg_free(vg) instead of duplicating the calculation.
1371   Refactor vg_size, vg_free, and pv_mda_count field calculations for liblvm.
1372   Refactor pvcreate and lvcreate for liblvm.
1373   Add global/wait_for_locks to lvm.conf so blocking for locks can be disabled.
1374   All LV locks are non-blocking so remove LCK_NONBLOCK from separate macros.
1375   Fix race condition with vgcreate and vgextend on same device (2.02.49).
1376   Remove redundant validate_name call from vgreduce.
1377   Remove unused handles lvseg, pvseg inside liblvm/lvm.h.
1378   Add liblvm2app Makefile installation targets.
1379   Add liblvm pkgconfig file.
1380   Use newly-independent LVM_LIBAPI in liblvm soname.  E.g. liblvm2app.so.2.1.
1381   Add an API version number, LVM_LIBAPI, to the VERSION string for liblvm.
1382   Pass a pointer to struct cmd_context to init_multiple_segtypes
1383   Return EINVALID_CMD_LINE not success when invalid VG name format is used.
1384   Remove unnecessary messages after vgcreate/vgsplit refactor (2.02.49).
1385   Add log_errno to set a specific errno and replace log_error in due course.
1386   Change create_toolcontext to still return an object if it fails part-way.
1387   Add EUNCLASSIFIED (-1) as the default LVM errno code.
1388   Store any errno and error messages issued while processing each command.
1389   Use log_error macro consistently throughout in place of log_err.
1390
1391 Version 2.02.49 - 15th July 2009
1392 ================================
1393   Add readonly locking type to replace implementation of --ignorelockingfailure.
1394   Exclude VG_GLOBAL from vg_write_lock_held so scans open devs read-only again.
1395   Add unit test case for liblvm VG create/delete APIs.
1396   Add liblvm APIs to implement creation and deletion of VGs.
1397   Initialize cmd->cmd_line to "liblvm" in new liblvm library.
1398   Place handles to liblvm objects for pv, vg, lv, lvseg, pvseg inside lvm.h.
1399   Refactor vgsplit and vgextend to remove READ_REQUIRE_RESIZEABLE flag.
1400   Use _exit() not exit() after forking to avoid flushing libc buffers twice.
1401   Add cast to log_info arg in _find_labeller to avoid Sparc64 warning.
1402   Make cmd->cmd_line const.
1403   Fix dev name mismatch in vgcreate man page example.
1404   Refactor vg_remove_single for use in liblvm.
1405   Make all tools use consistent lock ordering obtaining VG_ORPHAN lock second.
1406   Check md devices for a partition table during device scan.
1407   Add extended device (blkext) and md partition (mdp) types to filters.
1408   Make text metadata read errors for segment areas more precise.
1409   Fix text segment metadata read errors to mention correct segment name.
1410   Include segment and LV names in text segment import error messages.
1411   Add parent node to config_node structure.
1412   Update vgsplit and vgcreate to call new vg_create and 'set' functions.
1413   Change vg_create to take minimal parameters, obtain a lock, and return vg_t.
1414   Refactor vgchange extent_size, max_lv, max_pv, and alloc_policy for liblvm.
1415   Update t-vgcreate-usage.sh to test for default vg properties.
1416   Fix memory leak in vgsplit when re-reading the vg.
1417   Make various exit/cleanup paths more robust after lvm init failures.
1418   Use LCK_NONBLOCK implicitly instead of explicit vg_read() flag.
1419   Remove unnecessary locking and existence tests from new vg_read() interface.
1420   Permit several segment types to be registered by a single shared object.
1421   Update the man pages to document size units uniformly.
1422   Allow commandline sizes to be specified in terms of bytes and sectors.
1423   Update 'md_chunk_alignment' to use stripe-width to align PV data area.
1424   Update test/t-inconsistent-metadata.sh to match new vg_read interface.
1425   Add lvmcache_init() to polldaemon initialization.
1426   Convert tools to use new vg_read / vg_read_for_update.
1427   Fix segfault in vg_release when vg->cmd is NULL.
1428
1429 Version 2.02.48 - 30th June 2009
1430 ================================
1431   Abort if automatic metadata correction fails when reading VG to update it.
1432   Explicitly request fallback to default major number in device mapper.
1433   Ignore suspended devices during repair.
1434   Call vgreduce --removemissing automatically to fix missing PVs in dmeventd.
1435   Suggest using lvchange --resync when adding leg to not-yet-synced mirror.
1436   Destroy toolcontext on clvmd exit to avoid memory pool leaks.
1437   Fix lvconvert not to poll mirror if no conversion in progress.
1438   Fix memory leaks in toolcontext error path.
1439   Reinstate partial activation support in clustered mode. (2.02.40)
1440   Allow metadata correction even when PVs are missing.
1441   Use 'lvm lvresize' instead of 'lvresize' in fsadm.
1442   Do not use '-n' realine option in fsadm for busybox compatiblity.
1443   Add vg_lock_newname() library function for vgrename, vgsplit and vgcreate.
1444   Round up requested readahead to at least one page and print warning.
1445   Try to repair vg before actual vgremove when force flag provided.
1446   Fix possible double release of VG after recovery.
1447   Add parameter to process_each_vg specifying what to do with inconsistent VG.
1448   Unify error messages when processing inconsistent volume group.
1449   Use lvconvert --repair instead of vgreduce in mirror dmeventd DSO.
1450   Introduce lvconvert --use_policies (repair policy according to lvm.conf).
1451   Update clvmd-corosync to match new corosync API.
1452   Fix lib Makefile to include any shared libraries in default target.
1453   Fix rename of active snapshot with virtual origin.
1454   Fix convert polling to ignore LV with different UUID.
1455   Cache underlying device readahead only before activation calls.
1456   Fix segfault when calculating readahead on missing device in vgreduce.
1457   Remove verbose 'visited' messages.
1458   Handle multi-extent mirror log allocation when smallest PV has only 1 extent.
1459   Add LSB standard headers and functions (incl. reload) to clvmd initscript.
1460   When creating new LV, double-check that name is not already in use.
1461   Remove /dev/vgname/lvname symlink automatically if LV is no longer visible.
1462   Rename internal vorigin LV to match visible LV.
1463   Suppress 'removed' messages displayed when internal LVs are removed.
1464   Fix lvchange -a and -p for sparse LVs.
1465   Fix lvcreate --virtualsize to activate the new device immediately.
1466   Make --snapshot optional with lvcreate --virtualsize.
1467   Generalise --virtualoriginsize to --virtualsize.
1468   Skip virtual origins in process_each_lv_in_vg() without --all.
1469   Fix counting of virtual origin LVs in vg_validate.
1470   Attempt to load dm-zero module if zero target needed but not present.
1471
1472 Version 2.02.47 - 22nd May 2009
1473 ===============================
1474   Rename liblvm.so to liblvm2app.so and use configure --enable-applib.
1475   Reinstate version in liblvm2cmd.so soname. (2.02.44)
1476
1477 Version 2.02.46 - 21st May 2009
1478 ===============================
1479   Inherit readahead setting from underlying devices during activation.
1480   Detect LVs active on remote nodes by querying locks if supported.
1481   Enable online resizing of mirrors.
1482   Use suspend with flush when device size was changed during table preload.
1483   Implement query_resource_fn for cluster_locking.
1484   Support query_resource_fn in locking modules.
1485   Introduce CLVMD_CMD_LOCK_QUERY command for clvmd.
1486   Fix pvmove to revert operation if temporary mirror creation fails.
1487   Fix metadata export for VG with missing PVs.
1488   Add vgimportclone and install it and the man page by default.
1489   Force max_lv restriction only for newly created LV.
1490   Remove unneeded import parameter from lv_create_empty.
1491   Merge lv_is_displayable and lv_is_visible functions.
1492   Introduce lv_set_visible & lv_set_hidden functions.
1493   Fix lv_is_visible to handle virtual origin.
1494   Introduce link_lv_to_vg and unlink_lv_from_vg functions.
1495   Remove lv_count from VG and use counter function instead.
1496   Fix snapshot segment import to not use duplicate segments & replace.
1497   Do not query nonexistent devices for readahead.
1498   Remove NON_BLOCKING lock flag from tools and set a policy to auto-set.
1499   Remove snapshot_count from VG and use function instead.
1500   Fix first_seg() call for empty segment list.
1501   Add install_lvm2 makefile target to install only the LVM2 components.
1502   Reject missing PVs from allocation in toollib.
1503   Fix PV datalignment for values starting prior to MDA area. (2.02.45)
1504   Add sparse devices: lvcreate -s --virtualoriginsize (hidden zero origin).
1505   Fix minimum width of devices column in reports.
1506   Add lvs origin_size field.
1507   Fix linux configure --enable-debug to exclude -O2.
1508   Implement lvconvert --repair for repairing partially-failed mirrors.
1509   Fix vgreduce --removemissing failure exit code.
1510   Fix remote metadata backup for clvmd.
1511   Introduce unlock_and_release_vg macro.
1512   Introduce vg_release() to be called to free every struct volume_group.
1513   Alloc PV internal structure from VG mempool if possible.
1514   Fix metadata backup to run after vg_commit always.
1515   Tidy clvmd volume lock cache functions.
1516   Fix pvs report for orphan PVs when segment attributes are requested.
1517   Fix pvs -a output to not read volume groups from non-PV devices.
1518   Add MMC (mmcblk) device type to filters.
1519   Introduce memory pools per volume group (to reduce memory for large VGs).
1520   Use copy of PV structure when manipulating global PV lists.
1521   Always return exit error status when locking of volume group fails.
1522   Fix mirror log convert validation question.
1523   Avoid referencing files from DESTDIR during build process.
1524   Avoid creating some static libraries unless configured --enable-static_link.
1525   Enable use of cached metadata for pvs and pvdisplay commands.
1526   Add missing 'device-mapper' internal subdir build dependency.
1527   Fix memory leak in mirror allocation code.
1528   Save and restore the previous logging level when log level is changed.
1529   Fix error message when archive initialization fails.
1530   Make sure clvmd-corosync releases the lockspace when it exits.
1531   Fix segfault for vgcfgrestore on VG with missing PVs.
1532   Block SIGTERM & SIGINT in clvmd subthreads.
1533   Detect and conditionally wipe swapspace signatures in pvcreate.
1534   Fix maximal volume count check for snapshots if max_lv set for volume group.
1535   Fix lvcreate to remove unused cow volume if the snapshot creation fails.
1536   Fix error messages when PV uuid or pe_start reading fails.
1537   Build new liblvm application-level library.
1538   Rename liblvm.a to liblvm-internal.a.
1539   Flush memory pool and fix locking in clvmd refresh and backup command.
1540   Fix unlocks in clvmd-corosync. (2.02.45)
1541   Fix error message when adding metadata directory to internal list fails.
1542   Fix size and error message of memory allocation at backup initialization.
1543   Remove old metadata backup file after renaming VG.
1544   Restore log_suppress state when metadata backup file is up-to-date.
1545
1546 Version 2.02.45 - 3rd March 2009
1547 ================================
1548   Avoid scanning empty metadata areas for VG names.
1549   Attempt proper clean up in child before executing new binary in exec_cmd().
1550   Do not scan devices if reporting only attributes from PV label.
1551   Use pkgconfig to obtain corosync library details during configuration.
1552   Fix error returns in clvmd-corosync interface to DLM.
1553   Add --refresh to vgchange and vgmknodes man pages.
1554   Pass --test from lvresize to fsadm as --dry-run.
1555   Supply argv[] list to exec_cmd() to allow for variable number of parameters.
1556   Prevent fsadm from checking mounted filesystems.
1557   No longer treats any other key as 'no' when prompting in fsadm.
1558   Tidy fsadm command line processing.
1559   Add lib/lvm.h and lib/lvm_base.c for the new library interface.
1560   Move tools/version.h to lib/misc/lvm-version.h.
1561   Split LVM_VERSION into MAJOR, MINOR, PATCHLEVEL, RELEASE and RELEASE_DATE.
1562   Add system_dir parameter to create_toolcontext().
1563   Add --dataalignment to pvcreate to specify alignment of data area.
1564   Exclude LCK_CACHE locks from _vg_lock_count, fixing interrupt unblocking.
1565   Provide da and mda locations in debug message when writing text format label.
1566   Mention the restriction on file descriptors at invocation on the lvm man page.
1567   Index cached vgmetadata by vgid not vgname to cope with duplicate vgnames.
1568   No longer require kernel and metadata major numbers to match.
1569   Add a fully-functional get_cluster_name() to clvmd corosync interface.
1570   Remove duplicate cpg_initialize from clvmd startup.
1571   Add option to /etc/sysconfig/cluster to select cluster type for clvmd.
1572   Allow clvmd to start up if its lockspace already exists.
1573   Separate PV label attributes which do not need parse metadata when reporting.
1574   Remove external dependency on the 'cut' command from fsadm.
1575   Fix pvs segfault when pv mda attributes requested for not available PV.
1576   Add fsadm support for reszing ext4 filesysystems.
1577   Move locking_type reading inside init_locking().
1578   Rename get_vgs() to get_vgnames() and clarify related error messages.
1579   Allow clvmd to be built with all cluster managers & select one on cmdline.
1580   Mention --with-clvmd=corosync in ./configure.
1581   Replace internal vg_check_status() implementation.
1582   Rename vg_read() to vg_read_internal().
1583
1584 Version 2.02.44 - 26th January 2009
1585 ===================================
1586   Fix --enable-static_link after the recent repository changes.
1587   Add corosync/DLM cluster interface to clvmd.
1588   Add --nameprefixes, --unquoted, --rows to pvs, vgs, lvs man pages.
1589   Fix lvresize size conversion for fsadm when block size is not 1K.
1590   Fix pvs segfault when run with orphan PV and some VG fields.
1591   Display a 'dev_size' of zero for missing devices in reports.
1592   Add pv_mda_size to pvs and vg_mda_size to vgs.
1593   Fix lvmdump /sys listing to include virtual devices directory.
1594   Add "--refresh" functionality to vgchange and vgmknodes.
1595   Avoid exceeding LV size when wiping device.
1596   Calculate mirror log size instead of using 1 extent.
1597   Ensure requested device number is available before activating with it.
1598   Fix incorrect exit status from 'help <command>'.
1599   Fix vgrename using UUID if there are VGs with identical names.
1600   Fix segfault when invalid field given in reporting commands.
1601   Move is_static from cmd to global is_static().
1602   Refactor init_lvm() for lvmcmdline and clvmd.
1603   Add liblvm interactive test infrastructure to build.
1604   Add skeleton lvm2.h file in preparation for a shared library interface.
1605   Use better random seed value in temp file creation.
1606   Add read_urandom to read /dev/urandom. Use in uuid calculation.
1607   Use displayable_lvs_in_vg and lv_is_displayable for consistency throughout.
1608   Fix race in vgcreate that would result in second caller overwriting first.
1609   Fix uninitialised lv_count in vgdisplay -c.
1610   Don't skip updating pvid hash when lvmcache_info struct got swapped.
1611   Add tinfo to termcap search path for pld-linux.
1612   Fix startup race in clvmd.
1613   Generate Red Hat clvmd startup script at config time with correct paths.
1614   Fix clvmd & dmeventd builds after tree restructuring.
1615   Cope with snapshot dependencies when removing a whole VG with lvremove.
1616   Make man pages and tool help text consistent using | for alternative options.
1617
1618 Version 2.02.43 - 10th November 2008
1619 ====================================
1620   Merge device-mapper into the lvm2 tree.
1621   Correct prototype for --permission on lvchange and lvcreate man pages.
1622   Exit with non-zero status from vgdisplay if couldn't show any requested VG.
1623   Move list.c into libdevmapper and rename functions.
1624   Rename a couple of variables that matched function names.
1625   Use simplified x.y.z version number in libdevmapper.pc.
1626   Remove ancient debian directory.
1627   Split out lvm-logging.h from log.h and lvm-globals.[ch] from log.[ch].
1628
1629 Version 2.02.42 - 26th October 2008
1630 ===================================
1631   Accept locking fallback_to_* options in the global section as documented.
1632   Fix temp table activation in mirror conversions not to happen in other cmds.
1633   Fix temp table in mirror conversions to use always-present error not zero.
1634
1635 Version 2.02.41 - 17th October 2008
1636 ===================================
1637   Use temp table to set device size when converting mirrors.
1638   In resume_mirror_images replace activate_lv with resume_lv as workaround.
1639   Avoid overwriting in-use on-disk text metadata by forgetting MDA_HEADER_SIZE.
1640   Fix snapshot monitoring library to not cancel monitoring invalid snapshot.
1641   Generate man pages from templates and include version.
1642   Add usrlibdir and usrsbindir to configure.
1643   Fix conversion of md chunk size into sectors.
1644   Free text metadata buffer after a failure writing it.
1645   Fix misleading error message when there are no allocatable extents in VG.
1646   Fix handling of PVs which reappeared with old metadata version.
1647   Fix mirror DSO to call vgreduce with proper parameters.
1648   Fix validation of --minor and --major in lvcreate to require -My always.
1649   Fix release: clvmd build, vgreduce consolidate & tests, /dev/ioerror warning.
1650
1651 Version 2.02.40 - 19th September 2008
1652 =====================================
1653   Allow lvremove to remove LVs from VGs with missing PVs.
1654   In VG with PVs missing, by default allow activation of LVs that are complete.
1655   Track PARTIAL_LV and MISSING_PV flags internally.
1656   Require --force with --removemissing in vgreduce to remove partial LVs.
1657   No longer write out PARTIAL flag into metadata backups.
1658   Treat new default activation/missing_stripe_filler "error" as an error target.
1659   Remove internal partial_mode.
1660   Add devices/md_chunk_alignment to lvm.conf.
1661   Pass struct physical_volume to pe_align and adjust for md chunk size.
1662   Store sysfs location in struct cmd_context.
1663   Avoid shuffling remaining mirror images when removing one, retaining primary.
1664   Add missing LV error target activation in _remove_mirror_images.
1665   Prevent resizing an LV while lvconvert is using it.
1666   Avoid repeatedly wiping cache while VG_GLOBAL is held in vgscan & pvscan.
1667   Fix pvresize to not allow resize if PV has two metadata areas.
1668   Fix setting of volume limit count if converting to lvm1 format.
1669   Fix vgconvert logical volume id metadata validation.
1670   Fix lvmdump metadata gather option (-m) to work correctly.
1671   Fix allocation bug in text metadata format write error path.
1672   Fix vgcfgbackup to properly check filename if template is used.
1673   configure aborts if lcov or genhtml are missing with --enable-profiling
1674   vgremove tries to remove lv snapshot first.
1675   Added function lv_remove_with_dependencies().
1676   Improve file descriptor leak detection to display likely culprit and filename.
1677   Change clustered mirror kernel module name from cmirror to dm-log-clustered.
1678   Avoid looping forever in _pv_analyze_mda_raw used by pvck.
1679   Change lvchange exit status to indicate if any part of the operation failed.
1680   Fix pvchange and pvremove to handle PVs without mdas.
1681   Refactor _text_pv_read and always return mda list if requested.
1682   Fix configure to work w/o readline unless --enable-readline used. (2.02.39)
1683   Remove is_lvm_partition template which has not yet been coded.
1684   Refactor pvcreate to separate parameter parsing from validation logic.
1685   Check for label_write() failure in _text_pv_write().
1686   Add pvcreate tests and update vgsplit tests to handle lvm1 and lvm2 metadata.
1687   Fix pvchange -M1 -u to preserve existing extent locations when there's a VG.
1688   Cease recognising snapshot-in-use percentages returned by early devt kernels.
1689   Add backward-compatible flags field to on-disk format_text metadata.
1690   Fix dmeventd monitoring libraries to link against liblvm2cmd again. (2.02.39)
1691
1692 Version 2.02.39 - 27th June 2008
1693 ================================
1694   Enable readline by default if available.
1695   Update autoconf to 2008-01-16.
1696   Add $DISTCLEAN_DIRS to make.tmpl.in.
1697   Create coverage reports with --enable-profiling and make lcov or lcov-dated.
1698   Fix up cache for PVs without mdas after consistent VG metadata is processed.
1699   Update validation of safe mirror log type conversions in lvconvert.
1700   Fix lvconvert to disallow snapshot and mirror combinations.
1701   Fix reporting of LV fields alongside unallocated PV segments.
1702   Add --unquoted and --rows to reporting tools.
1703   Add and use uninitialized_var() macro to suppress invalid compiler warnings.
1704   Introduce enum for md minor sb version to suppress compiler warning.
1705   Avoid undefined return value after _memlock manipulation in lvm2_run.
1706   Avoid link failure if configured without --enable-cmdlib or --enable-readline.
1707   Make clvmd return at once if other nodes down in a gulm or openais cluster.
1708   Fix and improve readahead 'auto' calculation for stripe_size.
1709   Fix lvchange output for -r auto setting if auto is already set.
1710   Add test case for readahead.
1711   Avoid ambiguous use of identifier error_message_produced.
1712   Begin syncing configure.in for merge/unification with device-mapper.
1713   Fix add_mirror_images not to dereference uninitialized log_lv upon failure.
1714   Don't call openlog for every debug line output by clvmd.
1715   Add --force to lvextend and lvresize.
1716   Fix vgchange not to activate component mirror volumes directly.
1717   Fix test directory clean up in make distclean.
1718
1719 Version 2.02.38 - 11th June 2008
1720 ================================
1721   Fix tracking of validity of PVs with no mdas in lvmcache.
1722   Fix return values for reporting commands when run with no PVs, LVs, or VGs.
1723   Add omitted unlock_vg() call when sigint_caught() during vg processing.
1724   Fix free_count when reading pool metadata.
1725   Fix segfault when using pvcreate on a device containing pool metadata.
1726   Fix segfault after _free_vginfo by remembering to remove vginfo from list.
1727   Tweak detection of invalid fid after changes to PVs in VG in _vg_read.
1728   Revert assuming precommitted metadata is live when activating (unnecessary).
1729   Drop cached metadata for disappearing VG in vgmerge.
1730   In script-processing mode, stop if any command fails.
1731   Warn if command exits with non-zero status code without a prior log_error.
1732   Check lv_count in vg_validate.
1733   Add --nameprefixes to reporting tools for field name prefix output format.
1734
1735 Version 2.02.37 - 6th June 2008
1736 ===============================
1737   Make clvmd-cman use a hash rather than an array for node updown info.
1738   Correct config file line numbers in messages when parsing comments.
1739   Drop cached metadata when renaming a VG.
1740   Allow for vginfo changing during _vg_read.
1741   Decode numbers in clvmd debugging output.
1742   Add missing deactivation after activation failure in lvcreate -Zy.
1743   When activating, if precommitted metadata is still cached, assume it's live.
1744   When removing LV symlinks, skip any where the VG name is not determined.
1745   Drop metadata cache if update fails in vg_revert or vg_commit.
1746   Avoid spurious duplicate VG messages referring to VGs that are gone.
1747   Drop dev_name_confirmed error message to debug level.
1748   Fix setpriority error message to signed int.
1749   Temporarily disable dmeventd mirror monitoring during lvchange --resync.
1750   Refactor some vginfo manipulation code.
1751   Add assertions to trap deprecated P_ and V_ lock usage.
1752   Add missing mutex around clvmd lvmcache_drop_metadata library call.
1753   Fix uninitialised mutex in clvmd if all daemons are not running at startup.
1754   Avoid using DLM locks with LCK_CACHE type P_ lock requests.
1755   When asked to drop cached committed VG metadata, invalidate cached PV labels.
1756   Drop metadata cache before writing precommitted metadata instead of after.
1757   Don't touch /dev in vgrename if activation is disabled.
1758
1759 Version 2.02.36 - 29th April 2008
1760 =================================
1761   Fix fsadm.sh to work with older blockdev, blkid & readlink binaries.
1762   Fix lvresize to pass new size to fsadm when extending device.
1763   Remove unused struct in clvmd-openais, and use correct node count.
1764   Fix nodes list in clvmd-openais, and allow for broadcast messages.
1765   Exclude VG_GLOBAL from internal concurrent VG lock counter.
1766   Fix vgsplit internal counting of snapshot LVs.
1767   Fix vgmerge snapshot_count when source VG contains snapshots.
1768   Simplify clvmd-openais by using non-async saLckResourceLock.
1769   Fix internal LV counter when a snapshot is removed.
1770   Fix metadata corruption writing lvm1-formatted metadata with snapshots.
1771   Fix lvconvert -m0 allocatable space check.
1772
1773 Version 2.02.35 - 15th April 2008
1774 =================================
1775   Drop cached VG metadata before and after committing changes to it.
1776   Rename P_global to P_#global.
1777   Don't attempt remote metadata backups of non-clustered VGs. (2.02.29)
1778   Don't store fid in VG metadata cache to avoid clvmd segfault. (2.02.34)
1779   Update vgsplit tests to verify loosening of active LV restriction.
1780   Update vgsplit to only restrict split with active LVs involved in split.
1781   Add lv_is_active() to determine whether an lv is active.
1782
1783 Version 2.02.34 - 10th April 2008
1784 =================================
1785   Improve preferred_names lvm.conf example.
1786   Fix vgdisplay 'Cur LV' field to match lvdisplay output.
1787   Fix lv_count report field to exclude hidden LVs.
1788   Add vg_is_clustered() helper function.
1789   Fix vgsplit to only move hidden 'snapshotN' LVs when necessary.
1790   Update vgsplit tests for lvnames on the cmdline.
1791   Update vgsplit man page to reflect lvnames on the cmdline.
1792   Update vgsplit to take "-n LogicalVolumeName" on the cmdline.
1793   Use clustered mirror log with pvmove in clustered VGs, if available.
1794   Fix some pvmove error status codes.
1795   Fix vgsplit error paths to release vg_to lock.
1796   Indicate whether or not VG is clustered in vgcreate log message.
1797   Mention default --clustered setting in vgcreate man page.
1798   Add config file overrides to clvmd when it reads the active LVs list.
1799   Fix vgreduce to use vg_split_mdas to check sufficient mdas remain.
1800   Add (empty) orphan VGs to lvmcache during initialisation.
1801   Fix orphan VG name used for format_pool.
1802   Create a fid for internal orphan VGs.
1803   Update lvmcache VG lock state for all locking types now.
1804   Fix output if overriding command_names on cmdline.
1805   Add detection of clustered mirror log capability.
1806   Add check to vg_commit() ensuring VG lock held before writing new VG metadata.
1807   Add validation of LV name to pvmove -n.
1808   Make clvmd refresh the context correctly when lvm.conf is updated.
1809   Add some basic internal VG lock validation.
1810   Add per-command flags to control which commands use the VG metadata cache.
1811   Fix vgsplit locking of new VG (2.02.30).
1812   Avoid erroneous vgsplit error message for new VG. (2.02.29)
1813   Suppress duplicate message when lvresize fails because of invalid vgname.
1814   Cache VG metadata internally while VG lock is held.
1815   Fix redundant lvresize message if vg doesn't exist.
1816   Fix another allocation bug with clvmd and large node IDs.
1817   Add find_lv_in_lv_list() and find_pv_in_pv_list().
1818   Fix uninitialised variable in clvmd that could cause odd hangs.
1819   Add vgmerge tests.
1820   Add pvseg_is_allocated() for identifying a PV segment allocated to a LV.
1821   Add list_move() for moving elements from one list to another.
1822   Add 'is_reserved_lvname()' for identifying hidden LVs.
1823   Correct command name in lvmdiskscan man page.
1824   clvmd no longer crashes if it sees nodeids over 50.
1825   Fix potential deadlock in clvmd thread handling.
1826   Refactor text format initialisation into _init_text_import.
1827   Escape double quotes and backslashes in external metadata and config data.
1828   Add functions for escaping double quotes in strings.
1829   Rename count_chars_len to count_chars.
1830   Use return_0 in a couple more places.
1831   Correct a function name typo in _line_append error message.
1832   Include limits.h in clvmd so it compiles with newer headers.
1833   Add VirtIO disks (virtblk) to filters.
1834   Fix resetting of MIRROR_IMAGE and VISIBLE_LV after removal of LV. (2.02.30)
1835   Fix remove_layer_from_lv to empty the LV before removing it. (2.02.30)
1836   Add missing no-longer-used segs_using_this_lv test to check_lv_segments.
1837   Remove redundant non-NULL tests before calling free in clvmd.c.
1838   Avoid a compiler warning: make is_orphan's parameter const.
1839   Fix lvconvert detection of mirror conversion in progress. (2.02.30)
1840   Avoid automatic lvconvert polldaemon invocation when -R specified. (2.02.30)
1841   Fix 'pvs -a' to detect VGs of PVs without metadata areas.
1842   Divide up internal orphan volume group by format type.
1843   Update usage message for clvmd.
1844   Fix clvmd man page not to print <br> and clarified debug options.
1845   Fix lvresize to support /dev/mapper prefix in the LV name.
1846   Fix unfilled parameter passed to fsadm from lvresize.
1847   Update fsadm to call lvresize if the partition size differs (with option -l).
1848   Fix fsadm to support VG/LV names.
1849
1850 Version 2.02.33 - 31st January 2008
1851 ===================================
1852   Fix mirror log name construction during lvconvert. (2.02.30)
1853   Make monitor_dev_for_events recurse through the stack of LVs.
1854   Clean up some more compiler warnings.
1855   Some whitespace tidy-ups.
1856   Use stack return macros throughout.
1857   Rely upon internally-cached PV labels while corresponding VG lock is held.
1858
1859 Version 2.02.32 - 29th January 2008
1860 ===================================
1861   Fix two check_lv_segments error messages to show whole segment.
1862   Refactor mirror log attachment code.
1863   Fix internal metadata corruption in lvchange --resync. (2.02.30)
1864   Fix new parameter validation in vgsplit and test mode. (2.02.30)
1865   Remove redundant cnxman-socket.h file from clvmd directory.
1866   Fix pvs, vgs, lvs error exit status on some error paths.
1867
1868 Version 2.02.31 - 19th January 2008
1869 ===================================
1870   Fix lvcreate --nosync not to wait for non-happening sync. (2.02.30)
1871   Add very_verbose lvconvert messages.
1872   Avoid readahead error message with default setting of lvcreate -M1. (2.02.29)
1873
1874 Version 2.02.30 - 17th January 2008
1875 ===================================
1876   Set default readahead to twice maximium stripe size.
1877   Reinstate VG extent size and stripe size defaults (halved). (2.02.29)
1878   Add lists of stacked LV segments using each LV to the internal metadata.
1879   Change vgsplit -l (for unimplemented --list) into --maxlogicalvolumes.
1880   Fix process_all_pvs to detect non-orphans with no MDAs correctly.
1881   Don't use block_on_error with mirror targets version 1.12 and above.
1882   Update vgsplit to accept vgcreate options when new VG is destination.
1883   Update vgsplit to accept existing VG as destination.
1884   lvconvert waits for completion of initial sync by default.
1885   Refactor vgcreate for parameter validation and add tests.
1886   Add new convert_lv field to lvs output.
1887   Print warning when lvm tools are running as non-root.
1888   Add snapshot dmeventd library (enables dmeventd snapshot monitoring).
1889   Prevent pvcreate from overwriting MDA-less PVs belonging to active VGs.
1890   Fix a segfault if using pvs with --all argument. (2.02.29)
1891   Update --uuid argument description in man pages.
1892   Fix vgreduce PV list processing not to process every PV in the VG. (2.02.29)
1893   Extend lvconvert to use polldaemon.
1894   Add support for stacked mirrors.
1895   Major restructuring of pvmove and lvconvert layer manipulation code.
1896   Replace tools/fsadm with scripts/fsadm.sh.
1897   Append fields to report/pvsegs_cols_verbose.
1898   Permit LV segment fields with PV segment reports.
1899   Add seg_start_pe and seg_pe_ranges to reports.
1900
1901 Version 2.02.29 - 5th December 2007
1902 ===================================
1903   Make clvmd backup vg metadata on remote nodes.
1904   Refactor pvmove allocation code.
1905   Decode cluster locking state in log message.
1906   Change file locking state messages from debug to very verbose.
1907   Fix --addtag to drop @ prefix from name.
1908   Stop clvmd going haywire if a pre_function fails.
1909   Convert some vg_reads into vg_lock_and_reads.
1910   Avoid nested vg_reads when processing PVs in VGs and fix associated locking.
1911   Accept sizes with --readahead argument.
1912   Store size arguments as sectors internally.
1913   Attempt to remove incomplete LVs with lvcreate zeroing/activation problems.
1914   Add read_ahead activation code.
1915   Add activation/readahead configuration option and FMT_RESTRICTED_READAHEAD.
1916   Extend readahead arg to accept "auto" and "none".
1917   Add lv_read_ahead and lv_kernel_read_ahead fields to reports and lvdisplay.
1918   Prevent lvconvert -s from using same LV as origin and snapshot.
1919   Fix human-readable output of odd numbers of sectors.
1920   Add pv_mda_free and vg_mda_free fields to reports for raw text format.
1921   Add LVM2 version to 'Generated by' comment in metadata.
1922   Show 'not usable' space when PV is too large for device in pvdisplay.
1923   Ignore and fix up any excessive device size found in metadata.
1924   Fix error message when fixing up PV size in lvm2 metadata (2.02.11).
1925   Fix orphan-related locking in pvdisplay and pvs.
1926   Fix missing VG unlocks in some pvchange error paths.
1927   Add some missing validation of VG names.
1928   Rename validate_vg_name() to validate_new_vg_name().
1929   Change orphan lock to VG_ORPHANS.
1930   Change format1 to use ORPHAN as orphan VG name.
1931   Convert pvchange, pvdisplay, pvscan to use is_orphan()
1932   Add is_orphan_vg() and change all hard-coded checks to use it.
1933   Detect md superblocks version 1.0, 1.1 and 1.2.
1934   Add _alloc_pv() and _free_pv() from _pv_create() code and fix error paths.
1935   Add pv_dev_name() to access PV device name.
1936   Add const attributes to pv accessor functions.
1937   Refactor vg_add_snapshot() and lv_create_empty().
1938   Handle new sysfs subsystem/block/devices directory structure.
1939   Run test with LVM_SYSTEM_DIR pointing to private root and /dev dirs.
1940   Fix a bug in lvm_dump.sh checks for lvm/dmsetup binaries.
1941   Fix underquotations in lvm_dump.sh.
1942   Refactor lvcreate stripe and mirror parameter validation.
1943   Print --help output to stdout, not stderr.
1944   After a cmdline processing error, don't print help text but suggest --help.
1945   Add %PVS extents option to lvresize, lvextend, and lvcreate.
1946   Add 'make check' to run tests in new subdirectory 'test'.
1947   Moved the obsolete test subdirectory to old-tests.
1948   Cope with relative paths in configure --with-dmdir.
1949   Remove no-longer-correct restrictions on PV arg count with stripes/mirrors.
1950   Fix strdup memory leak in str_list_dup().
1951   Link with -lpthread when static SELinux libraries require that.
1952   Detect command line PE values that exceed their 32-bit range.
1953   Include strerror string in dev_open_flags' stat failure message.
1954   Move guts of pvresize into library.
1955   Avoid error when --corelog is provided without --mirrorlog. (2.02.28)
1956   Correct --mirrorlog argument name in man pages (not --log).
1957   Clear MIRROR_NOTSYNCED LV flag when converting from mirror to linear.
1958   Modify lvremove to prompt for removal if LV active on other cluster nodes.
1959   Add '-f' to vgremove to force removal of VG even if LVs exist.
1960
1961 Version 2.02.28 - 24th August 2007
1962 ==================================
1963   Fix clvmd logging so you can get lvm-level debugging out of it.
1964   Introduce VG_GLOBAL lock type for vgscan/pvscan to trigger clvmd -R.
1965   Change locking_flags from int to uint32_t.
1966   Fix clvmd -R, so it fully refreshes the caches.
1967   Change lvconvert_mirrors to use mirror segtype not striped.
1968   Fix lvconvert_mirrors detection of number of existing mirrors.
1969   Clean up numerous compiler warnings that appeared in recent releases.
1970   Remove several unused parameters from _allocate().
1971   Only permit --force, --verbose and --debug arguments to be repeated.
1972   Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1.
1973   Move guts of vgremove and lvremove into library, including yes_no_prompt.
1974   Allow clvmd debug to be turned on in a running daemon using clvmd -d [-C].
1975   Update to use autoconf 2.61, while still supporting 2.57.
1976   Add more cluster info to lvmdump.
1977   Add further const attributes throughout.
1978   Add support for renaming mirrored LVs.
1979   Factor out core of lvrename() to library function.
1980   Add --mirrorlog argument to specify log type for mirrors.
1981   Don't attempt to monitor devices if their creation failed in _lv_activate.
1982   Don't leak a file descriptor in fcntl_lock_file() when fcntl fails.
1983   Replace create_dir with dm_create_dir.
1984   Detect stream write failure reliably with lvm_fclose using dm_fclose.
1985   Fix clvmd if compiled with gulm support. (2.02.26)
1986   Fix lvdisplay man page to say LV size is reported in sectors, not KB.
1987   Add vg_lock_and_read() external library function.
1988   Fix loading of persistent cache if cache_dir is used. (2.02.23)
1989   Reduce _compare_paths lstat error message from log_error to log_very_verbose.
1990   Create util.h with last_path_component replacing strdup + basename.
1991   Use gcc's printf attribute wherever possible.
1992   In _line_append, use "sizeof buf - 1" rather than equivalent "4095".
1993   Introduce is_same_inode macro, now including a comparison of st_dev.
1994   Don't leak a file descriptor in _lock_file() when flock fails.
1995   Add SUN's LDOM virtual block device (vdisk) and ps3disk to filters.
1996   Split metadata-external.h out from metadata.h for the tools to use.
1997
1998 Version 2.02.27 - 17th July 2007
1999 ================================
2000   Fix snapshot cow area deactivation if origin is not active. (2.02.13)
2001   Fix configure libdevmapper.h check when --with-dmdir is used.
2002   Turn _add_pv_to_vg() into external library function add_pv_to_vg().
2003   Add pv_by_path() external library function.
2004   Tidy clvmd-openais of redundant bits, and improve an error report.
2005   Cope with find_seg_by_le() failure in check_lv_segments().
2006   Call dev_iter_destroy() if _process_all_devs() is interrupted by sigint.
2007   Add vg_mda_count and pv_mda_count columns to reports.
2008   Fix dumpconfig to use log_print instead of stdout directly.
2009   Remove unused parameter 'fid' from _add_pv_to_vg.
2010   Add kernel and device-mapper targets versions to lvmdump.
2011   Replace BSD (r)index with C89 str(r)chr.
2012   Handle vgsplit of an entire VG as a vgrename.
2013   Reinitialise internal lvmdiskscan variables when called repeatedly.
2014   Fix missing lvm_shell symbol in lvm2cmd library. (2.02.23)
2015   Add vg_status function and clean up vg->status in tools directory.
2016   Add --ignoremonitoring to disable all dmeventd interaction.
2017   Remove get_ prefix from get_pv_* functions.
2018   clvmd-openais now uses cpg_local_get() to get nodeid, rather than Clm.
2019   Print warnings to stderr instead of stdout.
2020
2021 Version 2.02.26 - 15th June 2007
2022 ================================
2023   Update vgcfgrestore man page.
2024   Allow keyboard interrupt during user prompts when appropriate.
2025   Remove unused clvmd system-lv code.
2026   Replace many physical_volume struct dereferences with new get_pv_* functions.
2027   Suppress a benign compile-time warning.
2028   Convert find_pv_in_vg_by_uuid and pv_create to use PV handles.
2029   Add wrappers to some functions in preparation for external LVM library.
2030   Add -f to vgcfgrestore to list metadata backup files.
2031   Add vg_check_status to consolidate vg status checks and error messages.
2032   Add pvdisplay --maps implementation.
2033   Remove unsupported LVM1 options from vgcfgrestore man page.
2034   Update vgcfgrestore man page to show mandatory VG name.
2035   Update vgrename man page to include UUID and be consistent with lvrename.
2036   Add (experimental) OpenAIS support to clvmd.
2037   Fix deactivation code to follow dependencies and remove symlinks.
2038   Fix and clarify vgsplit error messages.
2039   Fix a segfault in device_is_usable() if a device has no table.
2040   Add some more debug messages to clvmd startup.
2041   Misc clvmd cleanups.
2042
2043 Version 2.02.25 - 27th April 2007
2044 =================================
2045   Fix get_config_uint64() to read a 64-bit value not a 32-bit one.
2046   Add -Wformat-security and change one fprintf() to fputs().
2047   Move regex functions into libdevmapper.
2048   Change some #include lines to search only standard system directories.
2049   Add devices/preferred_names config regex list for displayed device names.
2050   Free a temporary dir string in fcntl_lock_file() after use.
2051   Fix a dm_pool_destroy() in matcher_create().
2052   Introduce goto_bad macro.
2053   Fix warnings on x86_64 involving ptrdiff_t in log_error messages.
2054   Update pvck to include text metadata area and record detection.
2055   Add support functions for token counting in config file extracts.
2056   Update pvck to read labels on disk, with --labelsector parameter.
2057   Add count_chars and count_chars_len functions.
2058   Add /sys/block listings to lvm_dump.sh.
2059   Make lvm_dump.sh list /dev recursively.
2060   Fix thread race in clvmd.
2061   Add scan_sector param to label_read and _find_labeller.
2062   Make clvmd cope with quorum devices.
2063   Add extra internal error checking to clvmd.
2064   Add dev_read_circular.
2065   Add pvck command stub.
2066   Update lists of attribute characters in man pages.
2067   Change cling alloc policy attribute character from 'C' to l'.
2068   Fix creation and conversion of mirrors with tags.
2069   Fix vgsplit for lvm1 format (set and validate VG name in PVs metadata).
2070   Split metadata areas in vgsplit properly.
2071
2072 Version 2.02.24 - 19th March 2007
2073 =================================
2074   Fix processing of exit status in init scripts
2075   Fix vgremove to require at least one vg argument.
2076   Fix reading of striped LVs in LVM1 format.
2077   Flag nolocking as clustered so clvmd startup sees clustered LVs. (2.02.10)
2078   Add a few missing pieces of vgname command line validation.
2079   Support the /dev/mapper prefix on most command lines.
2080
2081 Version 2.02.23 - 8th March 2007
2082 ================================
2083   Fix vgrename active LV check to ignore differing vgids.
2084   Remove no-longer-used uuid_out parameter from activation info functions.
2085   Fix two more segfaults if an empty config file section encountered.
2086   Move .cache file into a new /etc/lvm/cache directory by default.
2087   Add devices/cache_dir & devices/cache_file_prefix, deprecating devices/cache.
2088   Create directory in fcntl_lock_file() if required.
2089   Exclude readline support from lvm.static.
2090   Fix a leak in a reporting error path (2.02.19).
2091
2092 Version 2.02.22 - 13th February 2007
2093 ====================================
2094   Correct -b and -P on a couple of man pages.
2095   Add global/units to example.conf.
2096   Fix loading of segment_libraries.
2097   If a PV reappears after it was removed from its VG, make it an orphan.
2098   Don't update metadata automatically if VGIDs don't match.
2099   Fix some vgreduce --removemissing command line validation.
2100
2101 Version 2.02.21 - 30th January 2007
2102 ===================================
2103   Add warning to lvm2_monitoring_init_rhel4 if attempting to stop monitoring.
2104   Fix vgsplit to handle mirrors.
2105   Reorder fields in reporting field definitions.
2106   Fix vgs to treat args as VGs even when PV fields are displayed.
2107   Fix md signature check to handle both endiannesses.
2108
2109 Version 2.02.20 - 25th January 2007
2110 ===================================
2111   dmeventd mirror sets ignore_suspended_devices and avoids scanning mirrors.
2112   Add devices/ignore_suspended_devices to ignore suspended dm devices.
2113   Add some missing close() and fclose() return code checks.
2114   Fix exit statuses of reporting tools (2.02.19).
2115   Add init script for dmeventd monitoring.
2116   lvm.static no longer interacts with dmeventd unless explicitly asked to.
2117   Add field definitions to report help text.
2118   Remove unnecessary cmd arg from target_*monitor_events().
2119   Add private variable to dmeventd shared library interface.
2120   Long-lived processes write out persistent dev cache in refresh_toolcontext().
2121   Fix refresh_toolcontext() always to wipe persistent device filter cache.
2122   Add is_long_lived to toolcontext.
2123   Add --clustered to man pages.
2124   Streamline dm_report_field_* interface.
2125   Change remaining dmeventd terminology 'register' to 'monitor'.
2126   Update reporting man pages.
2127   No longer necessary to specify alignment type for report fields.
2128
2129 Version 2.02.19 - 17th January 2007
2130 ===================================
2131   Fix a segfault if an empty config file section encountered.
2132   Move basic reporting functions into libdevmapper.
2133   Fix partition table processing after sparc changes (2.02.16).
2134   Fix cmdline PE range processing segfault (2.02.13).
2135   Some libdevmapper-event interface changes.
2136   Report dmeventd mirror monitoring status.
2137   Fix dmeventd mirror status line processing.
2138
2139 Version 2.02.18 - 11th January 2007
2140 ===================================
2141   Revised libdevmapper-event interface for dmeventd.
2142   Remove dmeventd mirror status line word limit.
2143   Use CFLAGS when linking so mixed sparc builds can supply -m64.
2144   Prevent permission changes on active mirrors.
2145   Print warning instead of error message if lvconvert cannot zero volume.
2146   Add snapshot options to lvconvert man page.
2147   dumpconfig accepts a list of configuration variables to display.
2148   Change dumpconfig to use --file to redirect output to a file.
2149   Avoid vgreduce error when mirror code removes the log LV.
2150   Remove 3 redundant AC_MSG_RESULTs from configure.in.
2151   Free memory in _raw_read_mda_header() error paths.
2152   Fix ambiguous vgsplit error message for split LV.
2153   Fix lvextend man page typo.
2154   Add configure --with-dmdir to compile against a device-mapper source tree.
2155   Use no flush suspending for mirrors.
2156   Add dmeventd_mirror register_mutex, tidy initialisation & add memlock.
2157   Fix create mirror with name longer than 22 chars.
2158   Fix some activate.c prototypes when compiled without devmapper.
2159   Fix dmeventd mirror to cope if monitored device disappears.
2160
2161 Version 2.02.17 - 14th December 2006
2162 ====================================
2163   Add missing pvremove error message when device doesn't exist.
2164   When lvconvert allocates a mirror log, respect parallel area constraints.
2165   Use loop to iterate through the now-ordered policy list in _allocate().
2166   Check for failure to allocate just the mirror log.
2167   Introduce calc_area_multiple().
2168   Support mirror log allocation when there is only one PV: area_count now 0.
2169   Fix detection of smallest area in _alloc_parallel_area() for cling policy.
2170   Add manpage entry for clvmd -T
2171   Fix gulm operation of clvmd, including a hang when doing lvchange -aey
2172   Fix hang in clvmd if a pre-command failed.
2173
2174 Version 2.02.16 - 1st December 2006
2175 ===================================
2176   Fix VG clustered read locks to use PR not CR.
2177   Adjust some alignments for ia64/sparc.
2178   Fix mirror segment removal to use temporary error segment.
2179   Always compile debug logging into clvmd.
2180   Add startup timeout to RHEL4 clvmd startup script.
2181   Add -T (startup timeout) switch to clvmd.
2182   Improve lvm_dump.sh robustness.
2183   Update lvm2create_initrd to support gentoo.
2184
2185 Version 2.02.15 - 21st November 2006
2186 ====================================
2187   Fix clvmd_init_rhel4 line truncation (2.02.14).
2188   Install lvmdump by default.
2189   Fix check for snapshot module when activating snapshot.
2190   Fix pvremove error path for case when PV is in use.
2191   Warn if certain duplicate config file entries are seen.
2192   Enhance lvm_dump.sh for sysreport integration and add man page.
2193   Fix --autobackup argument which could never disable backups.
2194   Fix a label_verify error path.
2195
2196 Version 2.02.14 - 10th November 2006
2197 ====================================
2198   Fix adjusted_mirror_region_size() to handle 64-bit size.
2199   Add some missing bounds checks on 32-bit extent counters.
2200   Add Petabyte and Exabyte support.
2201   Fix lvcreate error message when 0 extents requested.
2202   lvremove man page: volumes must be cluster inactive before being removed.
2203   Protect .cache manipulations with fcntl locking.
2204   Change .cache timestamp comparisons to use ctime.
2205   Fix mirror log LV writing to set all bits in whole LV.
2206   Fix clustered VG detection and default runlevels in clvmd_init_rhel4.
2207   Fix high-level free space check for partial allocations.
2208
2209 Version 2.02.13 - 27th October 2006
2210 ===================================
2211   Add couple of missing files to tools/Makefile CLEAN_TARGETS.
2212   When adding snapshot leave cow LV mapped device active after zeroing.
2213   Fix a clvmd debug message.
2214   Add dev_flush() to set_lv().
2215   Add lvchange --resync.
2216   Perform high-level free space check before each allocation attempt.
2217   Don't allow a node to remove an LV that's exclusively active on anther node.
2218   Cope if same PV is included more than once in cmdline PE range list.
2219   Set PV size to current device size if it is found to be zero.
2220   Add segment parameter to target_present functions.
2221
2222 Version 2.02.12 - 16th October 2006
2223 ===================================
2224   Fix pvdisplay to use vg_read() for non-orphans.
2225   Fall back to internal locking if external locking lib is missing or fails.
2226   Retain activation state after changing LV minor number with --force.
2227   Propagate clustered flag in vgsplit and require resizeable flag.
2228
2229 Version 2.02.11 - 12th October 2006
2230 ===================================
2231   Add clvmd function to return the cluster name. not used by LVM yet.
2232   Add cling allocation policy.
2233   Change _check_contiguous() to use _for_each_pv().
2234   Extend _for_each_pv() to allow termination without error.
2235   Abstract _is_contiguous().
2236   Remove duplicated pv arg from _check_contiguous().
2237   Accept regionsize with lvconvert.
2238   Add report columns with underscore before field names ending 'size'.
2239   Correct regionsize default on lvcreate man page (MB).
2240   Fix clvmd bug that could cause it to die when a node with a long name crashed.
2241   Add device size to text metadata.
2242   Fix format_text mda_setup pv->size and pv_setup pe_count calculations.
2243   Fix _for_each_pv() for mirror with core log.
2244   Add lvm_dump.sh script to create a tarball of debugging info from a system.
2245   Capture error messages in clvmd and pass them back to the user.
2246   Remove unused #defines from filter-md.c.
2247   Make clvmd restart init script wait until clvmd has died before starting it.
2248   Add -R to clvmd which tells running clvmds to reload their device cache.
2249   Add LV column to reports listing kernel modules needed for activation.
2250   Show available fields if report given invalid field. (e.g. lvs -o list)
2251   Add timestamp functions with --disable-realtime configure option.
2252   Add %VG, %LV and %FREE suffices to lvcreate/lvresize --extents arg.
2253   Fix two potential NULL pointer derefs in error cases in vg_read().
2254   Separate --enable-cluster from locking lib options in lvmconf.sh.
2255   Add a missing comma in lvcreate man page.
2256
2257 Version 2.02.10 - 19th September 2006
2258 =====================================
2259   Fix lvconvert mirror change case detection logic.
2260   Fix mirror log detachment so it correctly becomes a standalone LV.
2261   Extend _check_contiguous() to detect single-area LVs.
2262   Include mirror log (untested) in _for_each_pv() processing.
2263   Use MIRROR_LOG_SIZE constant.
2264   Remove struct seg_pvs from _for_each_pv() to generalise.
2265   Avoid adding duplicates to list of parallel PVs to avoid.
2266   Fix several incorrect comparisons in parallel area avoidance code.
2267   Fix segment lengths when flattening existing parallel areas.
2268   Log existing parallel areas prior to allocation.
2269   Fix mirror log creation when activation disabled.
2270   Don't attempt automatic recovery without proper locking.
2271   When using local file locking, skip clustered VGs.
2272   Add fallback_to_clustered_locking and fallback_to_local_locking parameters.
2273   lvm.static uses built-in cluster locking instead of external locking.
2274   Don't attempt to load shared libraries if built statically.
2275   Change default locking_lib to liblvm2clusterlock.so.
2276   Add skip_dev_dir() to process command line VGs.
2277   Stop clvmd complaining about nodes that have left the cluster.
2278   Move lvm_snprintf(), split_words() and split_dm_name() into libdevmapper.
2279   Add lvconvert man page.
2280   Add mirror options to man pages.
2281   Prevent mirror renames.
2282   Move CMDLIB code into separate file and record whether static build.
2283
2284 Version 2.02.09 - 17th August 2006
2285 ==================================
2286   Fix PE_ALIGN for pagesize over 32KB.
2287   Separate out LVM1_PE_ALIGN and pe_align().
2288   Add lvm_getpagesize wrapper.
2289   Add --maxphysicalvolumes to vgchange.
2290
2291 Version 2.02.08 - 15th August 2006
2292 ==================================
2293   Add checks for duplicate LV name, lvid and PV id before writing metadata.
2294   Report all sanity check failures, not just the first.
2295   Fix missing lockfs on first snapshot creation.
2296   Add unreliable --trustcache option to reporting commands.
2297   Fix locking for mimage removal.
2298   Fix clvmd_init_rhel4 'status' exit code.
2299
2300 Version 2.02.07 - 17th July 2006
2301 ================================
2302   Fix activation logic in lvchange --persistent.
2303   Don't ignore persistent minor numbers when activating.
2304   Use RTLD_GLOBAL when loading shared libraries.
2305   Add some forgotten memlock checks to _vg_read to protect against full scans.
2306   Add mutex to dmeventd_mirror to avoid concurrent execution.
2307   Fix vgreduce --removemissing to return success if VG is already consistent.
2308   Fix return code if VG specified on command line is not found.
2309   Fix PV tools to include orphaned PVs in default output again.
2310   Fixed unaligned access when using clvm.
2311   Fix an extra dev_close in a label_read error path.
2312   Append patches to commit emails.
2313   Fix target_register_events args.
2314   Prevent snapshots of mirrors.
2315   Add DISTCLEAN_TARGETS to make template for configure.h.
2316   More fixes to error paths.
2317   Fix lvcreate corelog validation.
2318   Add --config for overriding most config file settings from cmdline.
2319   Quote arguments when printing command line.
2320   Remove linefeed from 'initialising logging' message.
2321   Add 'Completed' debug message.
2322   Don't attempt library exit after reloading config files.
2323   Always compile with libdevmapper, even if device-mapper is disabled.
2324
2325 Version 2.02.06 - 12th May 2006
2326 ===============================
2327   Propagate --monitor around cluster.
2328   Add --monitor to vgcreate and lvcreate to control dmeventd registration.
2329   Filter LCK_NONBLOCK in clvmd lock_vg.
2330   Add --nosync to lvcreate with LV flag NOTSYNCED.
2331   Use mirror's uuid for a core log.
2332   Add mirror log fault-handling policy.
2333   Improve mirror warning messages and tidy dmeventd syslog output.
2334   Propagate nosync flag around cluster.
2335   Allow vgreduce to handle mirror log failures.
2336   Add --corelog to lvcreate and lvconvert.
2337   Create a log header for replacement in-sync mirror log.
2338   Use set_lv() and dev_set() to wipe sections of devices.
2339   Add mirror_in_sync() flag to avoid unnecessary resync on activation.
2340   Add mirror_library description to example.conf.
2341   Fix uuid_from_num() buffer overrun.
2342   Make SIZE_SHORT the default for display_size().
2343   Fix some memory leaks in error paths found by coverity.
2344   Use C99 struct initialisers.
2345   Move DEFS into configure.h.
2346   Clean-ups to remove miscellaneous compiler warnings.
2347   Improve stripe size validation.
2348   Increase maximum stripe size limit to physical extent size for lvm2 metadata.
2349   Fix activation code to check for pre-existing mirror logs.
2350   Tighten region size validation.
2351   Ignore empty strings in config files.
2352   Require non-zero regionsize and document parameter on lvcreate man page.
2353   Invalidate cache if composition of VG changed externally.
2354
2355 Version 2.02.05 - 21st April 2006
2356 =================================
2357   Fix vgid string termination in recent cache code.
2358
2359 Version 2.02.04 - 19th April 2006
2360 =================================
2361   Check for libsepol.
2362   Add some cflow & scope support.
2363   Separate out DEFS from CFLAGS.
2364   Remove inlines and use unique function names.
2365
2366 Version 2.02.03 - 14th April 2006
2367 =================================
2368   vgrename accepts vgid and exported VG.
2369   Add --partial to pvs.
2370   When choosing between identically-named VGs, also consider creation_host.
2371   Provide total log suppression with 2.
2372   Fix vgexport/vgimport to set/reset PV exported flag so pv_attr is correct.
2373   Add vgid to struct physical_volume and pass with vg_name to some functions.
2374   If two or more VGs are found with the same name, use one that is not exported.
2375   Whenever vgname is captured, also capture vgid and whether exported.
2376   Remove an incorrect unlock_vg() from process_each_lv().
2377   Update extent size information in vgchange and vgcreate man pages.
2378   Introduce origin_from_cow() and lv_is_visible().
2379   pvremove without -f now fails if there's no PV label.
2380   Support lvconvert -s.
2381   Suppress locking library load failure message if --ignorelockingfailure.
2382   Propagate partial mode around cluster.
2383   Fix archive file expiration.
2384   Fix dmeventd build.
2385   clvmd now uses libcman rather than cman ioctls.
2386   clvmd will allow new cman to shutdown on request.
2387
2388 Version 2.02.02 - 7th February 2006
2389 ===================================
2390   Add %.so: %.a make template rule.
2391   Switchover library building to use LIB_SUFFIX.
2392   Only do lockfs filesystem sync when suspending snapshots.
2393   Always print warning if activation is disabled.
2394   vgreduce removes mirror images.
2395   Add --mirrorsonly to vgreduce.
2396   vgreduce replaces active LVs with error segment before removing them.
2397   Set block_on_error parameter if available.
2398   Add target_version.
2399   Add details to format1 'Invalid LV in extent map' error message.
2400   Fix lvscan snapshot full display.
2401   Bring lvdisplay man page example into line.
2402   Add mirror dmeventd library.
2403   Add some activation logic to remove_mirror_images().
2404   lvconvert can remove specified PVs from a mirror.
2405   lvconvert turns an existing LV into a mirror.
2406   Allow signed mirrors arguments.
2407   Move create_mirror_log() into toollib.
2408   Determine parallel PVs to avoid with ALLOC_NORMAL allocation.
2409   Fix lv_empty.
2410
2411 Version 2.02.01 - 23rd November 2005
2412 ====================================
2413   Fix lvdisplay cmdline to accept snapshots.
2414   Fix open RO->RW promotion.
2415   Fix missing vg_revert in lvcreate error path.
2416
2417 Version 2.02.00 - 10th November 2005
2418 ====================================
2419   Extend allocation areas to avoid overflow with contiguous with other PVs.
2420   Stop lvcreate attempting to wipe zero or error segments.
2421   Added new lvs table attributes.
2422   Separated out activation preload.
2423   Moved activation functions into libdevmapper.
2424   Fixed build_dm_name.
2425   Add return macros.
2426   Added xen xvd devices.
2427   Clear up precommitted metadata better.
2428   A pvresize implementation.
2429   Fix contiguous allocation when there are no preceding segments.
2430   Add mirror_seg pointer to lv_segment struct.
2431   Only keep a device open if it's known to belong to a locked VG.
2432   Fix lvdisplay to show all mirror destinations.
2433   Replacement suspend code using libdevmapper dependency tree.
2434   Add DEFS to make.tmpl.
2435   Use dm_is_dm_major instead of local copy.
2436   Allow mapped devices to be used as PVs.
2437   Move set_selinux_context into libdevmapper.
2438   Fix automatic text metadata buffer expansion (using macro).
2439   Cache formatted text metadata buffer between metadata area writes.
2440   Add pe_start field to pvs.
2441   Add 'LVM-' prefix to uuids.
2442   Split lv_segment_area from lv_segment to permit extension.
2443   Replacement deactivation code using libdevmapper dependency tree.
2444   Simplify dev_manager_info().
2445   Attempt to load missing targets using modprobe.
2446   Add -a to lvscan.
2447   Move mknodes into libdevmapper.
2448   Move bitset, hash, pool and dbg_malloc into libdevmapper.
2449
2450 Version 2.01.15 - 16th October 2005
2451 ===================================
2452   Refuse to run pvcreate/pvremove on devices we can't open exclusively.
2453   Use ORPHAN lock definition throughout.
2454   Validate chunksize in lvcreate.
2455   Reduce chunksize limit to 512k.
2456   Fix chunksize field in reports.
2457   Don't hide snapshots from default 'lvs' output.
2458   Add is_dm_major() for use in duplicate device detection in lvmcache_add().
2459   Really switch device number in lvmcache when it says it is doing so.
2460   Option for bitset memory allocation using malloc as well as pool.
2461   Don't assume exactly two mirrors when parsing mirror status.
2462   Suppress fsync() error message on filesystems that don't support it.
2463   Fix yes_no_prompt() error handling.
2464   Add lvm.conf comment warning against multiple filter lines.
2465   Tidy lvmconf.sh.
2466   Add format1 dev_write debug messages.
2467   Add clustered VG attribute to report.
2468   Move lvconvert parameters into struct lvconvert_params.
2469   Add clustered VG flag to LV lock requests.
2470   Change LV locking macros to take lv instead of lvid.
2471   Prepend 'cluster' activation parameter to mirror log when appropriate.
2472   Pass exclusive flag to lv_activate and on to target activation code.
2473   Prevent snapshot creation in a clustered VG for now.
2474   Factor out adjusted_mirror_region_size() and generate_log_name_format().
2475   Move compose_log_line() into mirror directory.
2476   Factor out _get_library_path().
2477   Don't kill idling clvmd threads.
2478   clvmd no longer takes out locks for non-clustered LVs.
2479   Recognise ATA over Ethernet (aoe) devices.
2480
2481 Version 2.01.14 - 4th August 2005
2482 =================================
2483   Fix lvconvert PV parameter in help string.
2484   Prevent snapshots getting activated in a clustered VG.
2485   Separate out _build_dev_string.
2486   Move zero_lv to toollib.
2487   Fix pool format handler to work with pv segment code.
2488
2489 Version 2.01.13 - 13th July 2005
2490 ================================
2491   Fix pvmove segment splitting.
2492   Abstract vg_validate.
2493   Only make one attempt at contiguous allocation.
2494   Fix lvm1 format metadata read.
2495   Fix lvm1 format non-mirror lvcreate.
2496
2497 Version 2.01.12 - 14th June 2005
2498 ================================
2499   Various allocation-related pvmove fixes.
2500   Log an error if clvmd can't resolve a host name got from CCS.
2501   Fix potential spin loop in clvmd.
2502
2503 Version 2.01.11 - 13th June 2005
2504 ================================
2505   Added lvmconf.sh.
2506   Use matchpathcon mode parameter.
2507   Don't defer closing dead FDs in clvmd.
2508   Remove hard-coded 64k text metadata writing restriction.
2509   Make VG name restrictions consistent.
2510   Introduce lvconvert.  So far only removes mirror images.
2511   Allow mirror images to be resized.
2512   Allow mirror images to have more than one segment.
2513   Centralise restrictions on LV names.
2514   Always insert an intermediate layer for mirrors.
2515   Suppress hidden LVs from reports unless --all is given.
2516   Use square brackets for hidden LVs in reports.
2517   Allow the creation of mirrors with contiguous extents.
2518   Always perform sanity checks against metadata before committing it to disk.
2519   Split lv_extend into two steps: choosing extents + allocation to LV(s).
2520   Add mirror log region size to metadata.
2521   Use list_iterate_items throughout and add list*back macros.
2522   Introduce seg_ macros to access areas.
2523   Add segtype_is_ macros.
2524   Support tiny metadata areas for pool conversions.
2525   Mirror activation handles disk log as well as core.
2526   Activation code recognises mirror log dependency.
2527   Add mirror_log and regionsize fields to report.
2528   Fix non-orphan pvchange -u.
2529   Fix vgmerge to handle duplicate LVIDs.
2530   Move archiver code from tools into library.
2531   vgscan/change/display/vgs automatically create metadata backups if needed.
2532   Merge cloned allocation functions.
2533   Fix contiguous allocation policy with linear.
2534   Cope with missing format1 PVs again.
2535   Remove lists of free PV segments.
2536   Simplify pv_maps code and remove slow bitset algorithm.
2537   Red-Hat-ify the clvmd rhel4 initscript.
2538   %Zu->%zu
2539   Fix loopfiles alias alloc & mem debugging.
2540   Un-inline dbg_strdup.
2541   lv_reduce tidying.
2542   Remove some unnecessary parameters.
2543   Introduce seg_is macros.
2544
2545 Version 2.01.10 - 3rd May 2005
2546 ==============================
2547   Don't create backup and archive dirs till needed.
2548   Reinstate full PV size when removing from VG.
2549   Support loopfiles for testing.
2550   Tidy lv_segment interface.
2551   pv_segment support.
2552   vgchange --physicalextentsize
2553   Internal snapshot restructuring.
2554   Remove unused internal non-persistent snapshot option.
2555   Allow offline extension of snapshot volumes.
2556   Move from 2-step to 3-step on-disk metadata commit.
2557   Scan ramdisks too and allow non-O_DIRECT fallback.
2558   Annotate, tidy and extend list.h.
2559   Alignment tidying.
2560   Make clvmd work around some "bugs" in gulm's node state notifications.
2561   Tidy clvmd's SIGHUP handler
2562
2563 Version 2.01.09 - 4th April 2005
2564 ================================
2565   Add --ignorelockingfailure to vgmknodes.
2566   clvmd: Don't allow user operations to start until the lvm thread is fully up.
2567   clvmd-gulm: set KEEPALIVE on sockets.
2568
2569 Version 2.01.08 - 22nd March 2005
2570 =================================
2571   Add clustered attribute so vgchange can identify clustered VGs w/o locking.
2572   Improve detection of external changes affecting internal cache.
2573   Add 'already in device cache' debug message.
2574   Add -a to pvdisplay -C.
2575   Avoid rmdir opendir error messsages when dir was already removed.
2576   Tighten signal handlers.
2577   Avoid some compiler warnings.
2578   Additional rename failure error message.
2579   read/write may be macros.
2580   clvmd: don't take out lvm thread lock at startup, it only protects jobs list.
2581
2582 Version 2.01.07 - 8th March 2005
2583 ================================
2584   Cope with new devices appearing by rescanning /dev if a uuid can't be found.
2585   Remove DESTDIR from LVM_SHARED_PATH.
2586   clvmd fixes: make FDs close-on-exec
2587                gulm unlocks VG & orphan locks at startup in case they are stale
2588                gulm now unlocks VG & orphan locks if client dies.
2589
2590 Version 2.01.06 - 1st March 2005
2591 ================================
2592   Suppress 'open failed' error messages during scanning.
2593   Option to suppress warnings of file descriptors left open.
2594   Fix default value of metadatacopies in documentation (2->1).
2595   Fix clvmd-gulm locking.
2596   ./configure --enable-debug now enables debugging code in clvmd.
2597   Fix clvmd-gulm node up/down code so it actually works.
2598   clvmd-gulm now releases locks when shut down.
2599
2600 Version 2.01.05 - 18th February 2005
2601 ====================================
2602   Static binary invokes dynamic binary if appropriate.
2603   Make clvmd config check a little more tolerant.
2604   gulm clvmd can now cope with >1 message arriving in a TCP message.
2605
2606 Version 2.01.04 - 9th February 2005
2607 ===================================
2608   Add fixed offset to imported pool minor numbers.
2609   Update binary pathnames in clvmd_init_rhel4.
2610   lvm2cmd.so should skip the check for open fds.
2611   Remove unused -f from pvmove.
2612   Gulm clvmd doesn't report "connection refused" errors.
2613   clvmd does a basic config file sanity check at startup.
2614   Fix potential thread shutdown race in clvmd.
2615
2616 Version 2.01.03 - 1st February 2005
2617 ===================================
2618   More 64-bit display/report fixes.
2619   More informative startup mesg if can't create /etc/lvm.
2620   Fix snapshot device size bug (since 2.01.01).
2621   clvmd announces startup and cluster connection in syslog.
2622   Gulm clvmd doesn't hang trying to talk to a rebooted node.
2623   Gulm clvmd doesn't print cman error on startup.
2624
2625 Version 2.01.02 - 21st January 2005
2626 ===================================
2627   Update clvmd_init_rhel4: use lvm.static and don't load dlm.
2628   Fix some size_t printing.
2629   Fix 64 bit xlate consts.
2630   Split out pool sptype_names to avoid unused const.
2631   Always fail if random id generation fails.
2632   Recognise gnbd devices.
2633   Fix clvmd startup bug introduced in cman/gulm amalgamation.
2634   Improve reporting of node-specific locking errors.
2635
2636 Version 2.01.01 - 19th January 2005
2637 ===================================
2638   Fix clvmd lv_info_by_lvid open_count.
2639   Store snapshot and origin sizes separately.
2640   Update vgcreate man page.
2641
2642 Version 2.01.00 - 17th January 2005
2643 ===================================
2644   Fix vgscan metadata auto-correction.
2645   Only ask libdevmapper for open_count when we need it.
2646   Adjust RHEL4 clvmd init script priority.
2647   Enable building of CMAN & GULM versions of clvmd into a single binary
2648
2649 Version 2.00.33 - 7th January 2005
2650 ==================================
2651   pvcreate wipes first 4 sectors unless given --zero n.
2652   gulm clvmd now uses new ccsd key names.
2653   gulm clvmd now doesn't ignore the first node in cluster.conf
2654   Improve clvmd failure message if it's already running.
2655   Allow user to kill clvmd during initialisation.
2656   Fix off-by-one error in cluster_locking that could cause read hangs.
2657
2658 Version 2.00.32 - 22nd December 2004
2659 ====================================
2660   Drop static/dl restriction for now.
2661   Fix an error fprintf.
2662   Fix vgdisplay -s. Breaks (undocumented) lvs/pvs/vgs -s instead for now.
2663   Fix device reference counting on re-opens.
2664   Ignore sysfs symlinks when DT_UNKNOWN.
2665   Add clvmd init script for RHEL4.
2666   Skip devices that are too small to be PVs.
2667   Fix pvchange -x segfault with lvm2-format orphan.
2668   Cope with empty msdos partition tables.
2669   Add CONTRIBUTORS file.
2670
2671 Version 2.00.31 - 12th December 2004
2672 ====================================
2673   Reopen RO file descriptors RW if necessary.
2674
2675 Version 2.00.30 - 10th December 2004
2676 ====================================
2677   Additional device-handling debug messages.
2678   Additional verbosity level -vvvv includes line numbers and backtraces.
2679   Verbose messages now go to stderr not stdout.
2680   Close any stray file descriptors before starting.
2681   Refine partitionable checks for certain device types.
2682   Allow devices/types to override built-ins.
2683   Fix lvreduce man page .i->.I
2684   Fix vgsplit man page title.
2685   Fix clvmd man makefile.
2686   Extend dev_open logging.
2687   Make clvmd_fix_conf.sh UNDOable.
2688
2689 Version 2.00.29 - 27th November 2004
2690 ====================================
2691   xlate compilation fix.
2692
2693 Version 2.00.28 - 27th November 2004
2694 ====================================
2695   Fix partition table & md signature detection.
2696   Minor configure/makefile tidy.
2697   Export version.h from tools for clvmd.
2698
2699 Version 2.00.27 - 24th November 2004
2700 ====================================
2701   Trap large memory allocation requests.
2702   Fix to partition table detection code.
2703   Improve filter debug mesgs.
2704   Make clvmd_fix_conf.sh UNDOable
2705
2706 Version 2.00.26 - 23rd November 2004
2707 ====================================
2708   Improve pool debugging stats.
2709   Detect partition table signature.
2710   pvcreate wipes md superblocks. (With --uuid or --restorefile it prompts.)
2711   Separate out md superblock detection code.
2712   Prevent snapshot origin resizing.
2713   Improve a vgremove error message.
2714   Update some man pages.
2715   Allow y/n with -ae args (exclusive activation).
2716   Fixes to lvcreate vgname parsing.
2717   Fix dm_name string size calculation.
2718   Improve clvmd error reporting during startup.
2719   Make clvmd cope with large gaps in node numbers IDs.
2720   Make clvmd initialisation cope better with debugging output.
2721   Tidy clvmd socket callbacks so all work happens outside main loop.
2722   clvmd -V now displays lvm version too.
2723   Add optional gulm build for clvmd
2724
2725 Version 2.00.25 - 29th September 2004
2726 =====================================
2727   Fix return code from rm_link for vgmknodes.
2728   Make clvmd LV hash table thread-safe.
2729   Fix clvmd locking so it will lock out multiple users on the same node.
2730   Fix clvmd VG locking to it can cope with multiple VG locks.
2731   Remove spurious trailing dot in lvreduce man page.
2732   Fix vgremove locking.
2733
2734 Version 2.00.24 - 16th September 2004
2735 =====================================
2736   Fix pool_empty so it really does empty the memory pool.
2737   Rename old segtypes files to segtype.
2738   Some fixes to memory debugging code.
2739   Exclude internal commands formats & segtypes from install.
2740
2741 Version 2.00.23 - 15th September 2004
2742 =====================================
2743   Export dm name build & split functions.
2744   Use O_NOATIME on devices if available.
2745   Write log message when each segtype/format gets initialised.
2746   New commands 'segtypes' and 'formats'.
2747   Suppress pvmove abort message in test mode.
2748   Improve pvcreate/remove device not found error message.
2749   Allow pvmove to move data within the same PV.
2750   Describe how pvmove works on man page.
2751   Test for incompatible format/segtype combinations in lv_extend.
2752   Fix lvchange example on man page.
2753
2754 Version 2.00.22 - 3rd September 2004
2755 ====================================
2756   Fix /dev/vgname perms.
2757   Restructure xlate.h.
2758   Add clvmd man page.
2759
2760 Version 2.00.21 - 19th August 2004
2761 ==================================
2762   Update cnxman-socket.h from cman.
2763   Recognise iseries/vd devices.
2764   Use 'make install_cluster' to install cluster extensions only.
2765   Cope with DT_UNKNOWN in sysfs.
2766   Fix extents_moved metadata size comment.
2767   Remove duplicate line in pvremove help text.
2768   Support variable mirror region size.
2769   Support PE ranges in pvmove source PV.
2770   Fixes to as-yet-unused LV segment splitting code.
2771   Change alloc_areas to pe_ranges and allow suppression of availability checks.
2772   Add dev_size column to pvs.
2773   Add report columns for in-kernel device number.
2774
2775 Version 2.00.20 - 3 July 2004
2776 =============================
2777   More autoconf fixes.
2778   Fix device number handling for 2.6 kernels.
2779
2780 Version 2.00.19 - 29 June 2004
2781 ==============================
2782   Reduce severity of setlocale failure message.
2783   Recognise argv[0] "initrd-lvm" (pld-linux).
2784   Make -O2 configurable.
2785   Added --disable-selinux to configure script.
2786   LD_FLAGS->LDFLAGS & LD_DEPS->LDDEPS in configure script.
2787   Add init_debug to clvmd.
2788
2789 Version 2.00.18 - 24 June 2004
2790 ==============================
2791   Fix vgchange activation.
2792   Add cluster support.
2793
2794 Version 2.00.17 - 20 June 2004
2795 ==============================
2796   configure --enable-fsadm to try out fsadm.  fsadm is not tested yet.
2797   Display all filtered devices, not just PVs, with pvs -a.
2798   Fix sync_dir() when no / in filename
2799   vgcfgbackup -f accepts template with %s for VG name.
2800   Extend hash functions to handle non-null-terminated data.
2801   Add local activation support.
2802   Tidy relative paths in makefile includes.
2803   fsadm support for fsck and resizing - needs testing.
2804   Add read-only GFS pool support.
2805   Add lvm2create_initrd script from http://poochiereds.net/svn/lvm2/
2806   Fix rounding of large diplayed sizes.
2807   Suppress decimal point when using units of sectors/bytes.
2808   Additional kernel target checks before pvmove & snapshot creation.
2809   Add i2o_block.
2810
2811 Version 2.00.16 - 24 May 2004
2812 =============================
2813   Set area_count within alloc_lv_segment.
2814   Remove error labels from lvresize.
2815   Fix a pvs error path.
2816   xxchange -ae for exclusive activation.
2817   Don't return non-zero status if there aren't any volume groups.
2818   Add --alloc argument to tools.
2819   Rename allocation policies to contiguous, normal, anywhere, inherit.
2820   nextfree becomes normal; anywhere isn't implemented yet.
2821   LV inherits allocation policy from VG. Defaults: LV - inherit; VG - normal
2822   Additional status character added to vgs to indicate allocation policy.
2823   Add reset_fn to external_locking.
2824   Ensure presence of virtual targets before attempting activating.
2825   Attempt to fix resizing of snapshot origins.
2826   Restructure lvresize, bringing it closer to lvcreate.
2827   A quick sanity check on vg_disk struct when read in.  More checks needed.
2828   Only include visible LVs in active/open counts.
2829   Add virtual segment types, zero and error.  A large sparse device can be
2830 constructed as a writeable snapshot of a large zero segment.
2831   Add --type to lvcreate/resize.
2832   Push lv_create & alloc policy up to tool level.
2833   Fix pvdisplay return code.
2834   Detect invalid LV names in arg lists.
2835   Reporting uses line-at-a-time output.
2836   lvm2 format sets unlimited_vols format flag.
2837   Internal-only metadata flag support.
2838   Basic checking for presence of device-mapper targets.
2839   Separate out polldaemon.
2840   Revise internal locking semantics.
2841   Move find_pv_by_name to library.
2842   Rename move->copy.
2843   Add devices to segments report.
2844   Begin separating out segment code. There's a lot of change here.
2845   Compress any (obsolete) long LVM1 pvids encountered.
2846   Support for tagged config files.
2847   Don't abort operations if selinux present but disabled.
2848   Fix typo in configure which left HAVE_LIBDL unset.
2849
2850 Version 2.00.15 - 19 Apr 2004
2851 =============================
2852   configure --with-owner= --with-group= to avoid -o and -g args to 'install'
2853
2854 Version 2.00.14 - 16 Apr 2004
2855 =============================
2856   Use 64-bit file functions by default.
2857
2858 Version 2.00.13 - 16 Apr 2004
2859 =============================
2860   Set devices/md_component_detection = 1 to ignore devices containing md
2861   superblocks. [Luca Berra]
2862   Ignore error setting selinux file context if fs doesn't support it.
2863
2864 Version 2.00.12 - 14 Apr 2004
2865 =============================
2866   Install a default lvm.conf into /etc/lvm if there isn't one already.
2867   Allow different installation dir for lvm.static (configure --staticdir=)
2868   Fix inverted selinux error check.
2869   Recognise power2 in /proc/devices.
2870   Fix counting in lvs_in_vg_opened. [It ignored devices open more than once.]
2871
2872 Version 2.00.11 - 8 Apr 2004
2873 ============================
2874   Set fallback_to_lvm1 in lvm.conf (or configure --enable-lvm1_fallback)
2875   to run lvm1 binaries if running a 2.4 kernel without device-mapper.
2876
2877 Version 2.00.10 - 7 Apr 2004
2878 ============================
2879   More fixes for static build.
2880   Add basic selinux support.
2881   Fix sysfs detection.
2882
2883 Version 2.00.09 - 31 Mar 2004
2884 =============================
2885   Update copyright notices for Red Hat.
2886   Fix vgmknodes to remove dud /dev/mapper entries. (libdevmapper update reqd).
2887   Add LVM1-style colon output to vgdisplay.
2888   lvchange --refresh to reload active LVs.
2889   Add string display to memory leak dump.
2890   Add locking flags & memlock option.
2891   Add list_versions to library.
2892   Ignore open hidden LVs when checking if deactivation is OK.
2893   Suppress move percentage when device inactive.
2894   Add lv_info_by_lvid.
2895   Various tidy-ups to the build process.
2896   Rebaseline internal verbose level.
2897   Add --nolocking option for read operations if locking is failing.
2898   Add option to compile into a library.
2899   When compiled without libdevmapper, only print warning message once.
2900   Fix lvreduce PV extent calculations.
2901   Fix DESTDIR to work with configure path overrides.
2902   Always use / as config file separator & rename internal config file variables.
2903   Add support for tagging PV/VG/LVs and hosts.
2904   Fix rare bug in recognition of long cmdline argument forms.
2905   Add basic internationalisation infrastructure.
2906   Don't recurse symlinked dirs such as /dev/fd on 2.6 kernels.
2907   Update autoconf files.
2908   Add sysfs block device filtering for 2.6 kernels.
2909   Update refs for move to sources.redhat.com.
2910
2911 Friday 14th November 2003
2912 =========================
2913 Some bug fixes & minor enhancements, including:
2914   Backwards compatibility with LVM1 metadata improved.
2915   Missing man pages written.
2916   Tool error codes made more consistent.
2917   vgmknodes written.
2918   O_DIRECT can be turned off if it doesn't work in your kernel.
2919   dumpconfig to display the active configuration file
2920
2921 You need to update libdevmapper before using 'vgmknodes' or 'vgscan --mknodes'.
2922 If your root filesystem is on an LV, you should run one of those two
2923 commands to fix up the special files in /dev in your real root filesystem
2924 after finishing with your initrd.  Also, remember you can use
2925 'vgchange --ignorelockingfailure' on your initrd if the tool fails because
2926 it can't write a lock file to a read-only filesystem.
2927
2928 Wednesday 30th April 2003
2929 =========================
2930 A pvmove implementation is now available for the new metadata format.
2931
2932 When running a command that allocates space (e.g. lvcreate), you can now
2933 restrict not only which disk(s) may be used but also the Physical Extents
2934 on those disks.  e.g. lvcreate -L 10 vg1 /dev/hda6:1000-2000:3000-4000
2935
2936
2937 Monday 18th November 2002
2938 ========================
2939
2940 The new format of LVM metadata is ready for you to test!
2941   We expect it to be more efficient and more robust than the original format.
2942   It's more compact and supports transactional changes and replication.
2943   Should things go wrong on a system, it's human-readable (and editable).
2944
2945 Please report any problems you find to the mailing list,
2946 linux-lvm@sistina.com.  The software has NOT yet been thoroughly
2947 tested and so quite possibly there'll still be some bugs in it.
2948 Be aware of the disclaimer in the COPYING file.
2949
2950 While testing, we recommend turning logging on in the configuration file
2951 to provide us with diagnostic information:
2952   log {
2953         file="/tmp/lvm2.log"
2954         level=7
2955         activation=1
2956   }
2957
2958 You should schedule regular backups of your configuration file and
2959 metadata backups and archives (normally kept under /etc/lvm).
2960
2961 Please read docs/example.conf and "man lvm.conf" to find out more about
2962 the configuration file.
2963
2964 To convert an existing volume group called vg1 to the new format using
2965 the default settings, use "vgconvert -M2 vg1".  See "man vgconvert".
2966
2967 -M (or --metadatatype in its long form) is a new flag to indicate which
2968 format of metadata the command should use for anything it creates.
2969 Currently, the valid types are "lvm1" and "lvm2" and they can be
2970 abbreviated to "1" and "2" respectively.  The default value for this
2971 flag can be changed in the global section in the config file.
2972
2973 Backwards-compatible support for the original LVM1 metadata format is
2974 maintained, but it can be moved into a shared library or removed
2975 completely with configure's --with-lvm1 option.
2976
2977 Under LVM2, the basic unit of metadata is the volume group.  Different
2978 volume groups can use different formats of metadata - vg1 could use
2979 the original LVM1 format while vg2 used the new format - but you can't
2980 mix formats within a volume group.  So to add a PV to an LVM2-format
2981 volume group you must run "pvcreate -M2" on it, followed by "vgextend".
2982
2983 With LVM2-format metadata, lvextend will let you specify striping
2984 parameters.  So an LV could consist of two or more "segments" - the
2985 first segment could have 3 stripes while the second segment has just 2.
2986
2987 LVM2 maintains a backup of the current metadata for each volume group
2988 in /etc/lvm/backup, and puts copies of previous versions in
2989 /etc/lvm/archive.  "vgcfgbackup" and "vgcfgrestore" can be used to
2990 create and restore from these files.  If you fully understand what
2991 you're doing, metadata can be changed by editing a copy of a current
2992 backup file and using vgcfgrestore to reload it.
2993
2994 Please read the pvcreate man page for more information on the new
2995 format for metadata.
2996
2997 All tools that can change things have a --test flag which can be used
2998 to check the effect  of a set of cmdline args without really making the
2999 changes.
3000
3001
3002 What's not finished?
3003 ====================
3004 The internal cache.  If you turn on debugging output you'll see lots of
3005 repeated messages, many of which will eventually get optimised out.
3006
3007 --test sometimes causes a command to fail (e.g. vgconvert --test) even
3008 though the real command would work: again, fixing this is waiting for
3009 the work on the cache.
3010
3011 Several of the tools do not yet contain the logic to handle full
3012 recovery: combinations of pvcreate and vgcfgrestore may sometimes be
3013 needed to restore metadata if a tool gets interrupted or crashes or
3014 finds something unexpected.  This applies particularly to tools that
3015 work on more than one volume group at once (e.g. vgsplit).
3016
3017 Display output.  Some metadata information cannot yet be displayed.
3018
3019 Recovery tools to salvage "lost" metadata directly from the disks:
3020 but we hope the new format will mean such tools are hardly ever needed!