WHATS_NEW

   1 Version 2.02.97 -
   2 ===============================
   3   Support changing of discard and zeroing for thin pool.
   4   Report used discard for thin pool and volume.
   5   Add support for controlling discard behavior of thin pool.
   6   Detect features for new 1.1 thin pool target.
   7   Count percentage of completeness upwards when merging a snapshot volume.
   8   Skip activation when using vg/lvchange --sysinit -a ay and lvmetad is active.
   9   Fix extending RAID 4/5/6 logical volumes
  10   Fix test for PV with unknown VG in process_each_pv to ignore ignored mdas.
  11   Update man pages with --activate ay option and auto_activation_volume_list.
  12   Fix _alloc_parallel_area to avoid picking already-full areas for raid devices.
  13   Use vgchange -aay instead of vgchange -ay in clmvd init script.
  14   Add activation/auto_activation_volume_list to lvm.conf.
  15   Add --activate ay to lvcreate, lvchange, pvscan and vgchange.
  16   Add support for volume autoactivation using lvmetad.
  17   Add --activate synonym for --available arg and prefer --activate.
  18   Never issue discards when LV extents are being reconfigured, not deleted.
  19   Allow release_lv_segment_area to fail as functions it calls can fail.
  20   Open device read-only to obtain readahead value.
  21   Fix lvconvert error path NULL pointer dereference.
  22   Check for create_instance() fail in pvscan_lvmetad_single().
  23   Use 64bit math for reserved memory and stack.
  24   Add tests for kernel_send() errors in cmirrod.
  25   Print clean_bits in pull_state, fix cut&paste typo in cmirrord.
  26   Add tests for errors from closedir(), close() in cmirrord.
  27   Fix missing sync of filesystem when creating thin volume snapshot.
  28
  29 Version 2.02.96 - 8th June 2012
  30 ===============================
  31   Upstream source repo now fedorahosted.org git not sources.redhat.com CVS.
  32   Fix error paths for regex filter initialization.
  33   Re-enable partial activation of non-thin LVs until it can be fixed. (2.02.90)
  34   Fix alloc cling to cling to PVs already found with contiguous policy.
  35   Fix cling policy not to behave like normal policy if no previous LV seg.
  36   Fix allocation loop not to use later policies when --alloc cling without tags.
  37   Append _TO_LVSEG to names of internal A_CONTIGUOUS and A_CLING flags.
  38   Add missing pkg init --with-systemdsystemunitdir in configure.in (2.02.92).
  39   Fix division by zero if PV with zero PE count is used during vgcfgrestore.
  40   Add initial support for thin pool lvconvert.
  41   Fix lvrename for thin volumes (regression in for_each_sub_lv). (2.02.89)
  42   Fix up-convert when mirror activation is controlled by volume_list and tags.
  43   Warn of deadlock risk when using snapshots of mirror segment type.
  44   Fix bug in cmirror that caused incorrect status info to print on some nodes.
  45   Remove statement that snapshots cannot be tagged from lvm man page.
  46   Disallow changing cluster attribute of VG while RAID LVs are active.
  47   Fix lvconvert error message for non-mergeable volumes.
  48   Allow subset of failed devices to be replaced in RAID LVs.
  49   Prevent resume from creating error devices that already exist from suspend.
  50   Improve clmvd singlenode locking for better testing.
  51   Update and correct lvs man page with supported column names.
  52   Handle replacement of an active device that goes missing with an error device.
  53   Change change raid1 segtype always to request a flush when suspending.
  54   Add udev info and context to lvmdump.
  55   Add lvmetad man page.
  56   Fix RAID device replacement code so that it works under snapshot.
  57   Fix inability to split RAID1 image while specifying a particular PV.
  58   Update man pages to give them all the same look&feel.
  59   Fix lvresize of thin pool for striped devices.
  60   For lvresize round upward when specifying number of extents.
  61   For lvcreate with %FREE support rounding downward stripe alignment.
  62   Change message severity to log_very_verbose for missing dev info in udev db.
  63   Fix lvconvert when specifying removal of a RAID device other than last one.
  64   Fix ability to handle failures in mirrored log in dmeventd plugin. (2.02.89)
  65   Fix unlocking volume group in vgreduce in error path.
  66   Cope when VG name is part of the supplied name in lvconvert --splitmirrors -n.
  67   Fix exclusive lvchange running from other node. (2.02.89)
  68   Add 'vgscan --cache' functionality for consistency with 'pvscan --cache'.
  69   Keep exclusive activation in pvmove if LV is already active.
  70   Disallow exclusive pvmove if some affected LVs are not exclusively activated.
  71   Remove unused and wrongly set cluster VG flag from clvmd lock query command.
  72   Fix pvmove for exclusively activated LV pvmove in clustered VG. (2.02.86)
  73   Always free hash table on update_pvid_to_vgid() in lvmetad.
  74   Update and fix monitoring of thin pool devices.
  75   Check hash insert success in lock_vg in clvmd.
  76   Check for buffer overwrite in get_cluster_type() in clvmd.
  77   Fix global/detect_internal_vg_cache_corruption config check.
  78   Update lcov Makefile target to support all dmeventd plugins.
  79   Fix initializiation of thin monitoring. (2.02.92)
  80   Cope with improperly formatted device numbers in /proc/devices. (2.02.91)
  81   Exit if LISTEN_PID environment variable incorrect in lvmetad systemd handover.
  82   Use pvscan --cache instead of vgscan in lvmetad scripts.
  83   Fix fsadm propagation of -e option.
  84   Fix fsadm parsing of /proc/mounts files (don't check for substrings).
  85   Fix fsadm usage of arguments with space.
  86   Fix arg_int_value alongside ARG_GROUPABLE --major/--minor for lvcreate/change.
  87   Fix name conflicts that prevent down-converting RAID1 when specifying a device
  88   Improve thin_check option passing and use configured path.
  89   Add --with-thin-check configure option for path to thin_check.
  90   Fix error message when pvmove LV activation fails with name already in use.
  91   Better structure layout for device_info in dev_subsystem_name().
  92   Change message severity for creation of VG over uninitialised devices.
  93   Fix error path for failed toolcontext creation.
  94   Detect lvm binary path in lvmetad udev rules.
  95   Don't unlink socket on lvmetad shutdown if instantiated from systemd.
  96   Restart lvmetad automatically from systemd if it exits from uncaught signal.
  97   Fix warn msg for thin pool chunk size and update man for chunksize. (2.02.89)
  98
  99 Version 2.02.95 - 6th March 2012
 100 ================================
 101   If unspecified, adjust thin pool metadata and chunk size to fit into 128MB.
 102   Print just warning on thin pool check callback path for failing check.
 103   Always use 64bit arithmetic with VG extent_size expression.
 104   Validate udev structures in _insert_udev_dir().
 105   Take repeatable --major --minor with pvscan --cache instead of major:minor.
 106   Scan all devices for lvmetad if 'pvscan --cache' used without device list.
 107   Populate lvmcache from lvmetad before displaying PVs in pvscan. (2.02.94)
 108   Suppress incorrect -n pvscan warning now always displayed. (2.02.94)
 109
 110 Version 2.02.94 - 3rd March 2012
 111 ================================
 112   Add support to execute thin_check with each de/active of thin pool.
 113   Fix automatic estimation of metadata device size for thin pool.
 114   Test for alloc fail from _alloc_pv_segment() in _extend_pv().
 115   Check for alloc fail from get_segtype_from_string() in _lvcreate_params().
 116   Add _rimage as reserved suffix to lvm.8 man page.
 117   Improve error logging from mpath filter.
 118   Check for allocation failure in hold_lock() in clvmd.
 119   Use set_lv() (wipe initial 4KiB) for non zeroed thin volume.
 120   Allow cluster mirrors to handle the absence of the checkpoint lib (libSaCkpt).
 121   Revert free of allocated segtype in init segment error path (2.02.89).
 122   Test dm_hash_insert() failures in filter-persistent.c and fid_add_mda().
 123   Ensure clvmd message is always NUL-terminated after read.
 124   Add some close() and dev_close() error path backtraces.
 125   Set stdin/stdout/stderr to /dev/null for polldaemon.
 126   Limit the max size of processed clvmd message to ~8KB.
 127   Do not send uninitialised bytes in cluster error reply messages.
 128   Use unsigned type for bitmask instead of enum type for lvm properties.
 129   Add missing cleanup of excl_uuid hash on some exit paths of clvmd.
 130   Check for existence of vg_name in _format1/_pool_vg_read().
 131   Fix missing break in _format_pvsegs (2.02.92).
 132   Test seg pointer for non-null it in raid_target_percent error path.
 133   Check for errors in _init_tags() during config loading.
 134   Always check result of _set_vg_name() in lvcreate.
 135   Drop unused call to uname() during clvmd initialization.
 136   Test allocation result in sysfs filter creation.
 137   Limit sscanf parameters with buffer size in clvmd get_initial_state().
 138   Use const lv pointer for lv_is_active...() functions.
 139   Use same signed numbers in _mirrored_transient_status().
 140   Support 'pvscan --cache' to update lvmetad state from specific PVs.
 141   Provide new metadata daemon for testing with configure --enable-lvmetad .
 142   Integrate client-side lvmetad into build.
 143
 144 Version 2.02.93 - 23rd February 2012
 145 ====================================
 146   Require number of stripes to be greater than parity devices in higher RAID.
 147   Fix allocation code to allow replacement of single RAID 4/5/6 device.
 148   Check all tags and LV names are in a valid form in vg_validate.
 149   Add tmpfiles.d style configuration for lvm2 lock and run directory.
 150   Add configure --with-tmpfilesdir for dir holding volatile-file configuration.
 151   Allow 'lvconvert --repair' to operate on RAID 4/5/6.
 152   Fix build_parallel_areas_from_lv to account correctly for raid parity devices.
 153   Print message when faulty raid devices have been replaced.
 154
 155 Version 2.02.92 - 20th February 2012
 156 ====================================
 157   Read dmeventd monitoring config settings for every lvm command.
 158   For thin devices, initialize monitoring only for thin pools not thin volumes.
 159   Make conversion from a synced 'mirror' to 'raid1' not cause a full resync.
 160   Properly test buffer for unit check in units_to_bytes().
 161   Add configure --with-systemdsystemunitdir.
 162   Add check for allocation failure in _build_matcher().
 163   Add check for rimage name allocation failure in _raid_add_images().
 164   Add check for mda_copy failure in _text_pv_setup().
 165   Add check for _mirrored_init_target failure.
 166   Add free_orphan_vg.
 167   Skip pv/vg_set_fid processing if the fid is same.
 168   Check for foreach loop errors in _vg_read_orphans() (2.02.91).
 169   Clean error paths for format instance creation (2.02.91).
 170   Release vg in error path of _format1_vg_read() instead of just free().
 171   Report allocation failure for allocation of PV structure.
 172   Add clvmd init dependency on dlm service when running with new corosync.
 173
 174 Version 2.02.91 - 12th February 2012
 175 ====================================
 176   Remove PV-based format instances (which are no longer needed).
 177   Link all orphan PVs directly to a per-format global orphan VG.
 178   Refactor lvmcache around an internal API.
 179   Stop processing lvextend if trying to extend a mirror that is being recovered.
 180   Add pool_below_threshold() function to check thin pool percent status.
 181   Fix test for snap percent for failing merge when removing LV.
 182   Switch int to void return for str_list_del().
 183   Fix error path handling in _build_desc().
 184   Add range test for device number in _scan_proc_dev().
 185   Use signed long for sysconf() call in cmirrord.
 186   Do not write in front of log buffer in print_log().
 187   Add boundary test for number of mirror devs and logs.
 188   Check that whole locking_dir fits _lock_dir buffer in init_file_locking().
 189   Use list functions for label_exit().
 190   Ensure strncpy() function always ends with '\0'.
 191   Set status in _fsadm_cmd() for error path.
 192   Add missing deps for lvm2api for rebuild when lvm-internal is changed.
 193   Fix resource leaks for failing allocation of formats (lvm1/2,pool).
 194   Release allocated resources in error path for composite_filter_create().
 195   Do not use lstat() results when failed in _rm_link().
 196   Remove a "waiting for another thread" log message from dmeventd plugins.
 197
 198 Version 2.02.90 - 1st February 2012
 199 ===================================
 200   sync_local_dev_names before (re)activating mirror log for initialisation.
 201   Disable partial activation for thin LVs and LVs with all missing segments.
 202   Do not print warning for pv_min_size between 512KB and 2MB.
 203   Clean up systemd unit ordering and requirements.
 204   Fix lcov reports when srcdir != builddir.
 205   Allow ALLOC_NORMAL to track reserved extents for log and data on same PV.
 206   Automatically detect whether corosync clvmd needs to use confdb or cmap.
 207   Fix data% report for thin volume used as origin for non-thin snapshot.
 208
 209 Version 2.02.89 - 26th January 2012
 210 ===================================
 211   Add missing check for uname result in clvmd TEST processing.
 212   Fix memleak in target_version() error path (unsupported LIST_VERSIONS).
 213   Limit data_alignment and data_alignment_offset to 32bit values.
 214   Check for correctness of uint64 dev_size value in format_text.
 215   Thin pools have segment fields thin_count, zero, transaction_id.
 216   Add data_percent and metadata_percent for thin pools to lvs -v.
 217   Add data_lv & metadata_lv fields to lvs for thin pools.
 218   Add data_percent & pool_lv fields to lvs for thin volumes.
 219   Rename origin_only parm to use_layer for lv_info and use with thin LVs.
 220   Add lv_thin_pool_transaction_id to read the transaction_id value.
 221   Use {suspend,resume}_origin_only when up-converting RAID, as mirrors do.
 222   Always add RAID metadata LVs to deptree (even when origin_only is set).
 223   Change exclusive LV activation logic to try local node before remote nodes.
 224   Add CLVMD_FLAG_REMOTE to skip processing on local node.
 225   Prompt if request is made to remove a snapshot whose "Merge failed".
 226   Allow removal of an invalid snapshot that was to be merged on next activation.
 227   Don't allow a user to merge an invalid snapshot.
 228   Use m and M lv_attr to indicate that a snapshot merge failed in lvs.
 229   Differentiate between snapshot status of "Invalid" and "Merge failed".
 230   Report snapshot usage percent of origin volume when a snapshot is merging.
 231   Require global/lvdisplay_shows_full_device_path for (bogus) lvm1-style paths.
 232   Do not report linear segtype for non-striped targets.
 233   Record creation host & time for each LV and report as lv_time & lv_host.
 234   Make error message hit when preallocated memlock memory exceeded clearer.
 235   Use R lv_attr to indicate read-only activation of non-read-only device in lvs.
 236   Show read-only activation override in lvdisplay & add 4 to perms in -c.
 237   Add activation/read_only_volume_list to override LV permission in metadata.
 238   Give priority to emcpower devices with duplicate PVIDs.
 239   Add check for error in _adjust_policy_params() (lvextend --use-policies).
 240   Round specified percentages upwards (%LV, %VG...) when resizing LVs.
 241   Use dmeventd_lvm2_command in dmeventd plugins snapshot, raid, mirror.
 242   Add helper dmeventd_lvm2_command() to libdevmapper-event-lvm2 library.
 243   Update documentation for dmeventd.
 244   Remove unnecessary stat before opening device in dev_open_flags.
 245   Reduce number of lstat calls when selecting device alias.
 246   Add _dev_init to initialize common struct device members.
 247   Always zalloc struct device during initialization.
 248   Fix missing thread list manipulation protection in dmeventd.
 249   Do not derefence lv pointer in _percent_run() function before NULL check.
 250   Allow empty strings for description and creation_host config fields.
 251   Issue deprecation warning when removing last lvm1-format snapshot.
 252   Reinstate support for snapshot removal with lvm1 format. (2.02.86)
 253   Add policy-based automated repair of RAID logical volumes.
 254   Don't allow two images to be split and tracked from a RAID LV at one time.
 255   Don't allow size change of RAID LV that is tracking changes for a split image.
 256   Don't allow size change of RAID sub-LVs independently.
 257   Don't allow name change of RAID LV that is tracking changes for a split image.
 258   Do not allow users to change the name of RAID sub-LVs independently.
 259   Do not allow users to change permissions on RAID sub-LVs.
 260   Allow lvconvert to replace specified devices in a RAID array.
 261   Add activation/use_linear_target enabled by default.
 262   Use gcc warning options only with .c to .o compilation.
 263   Move y/n prompts to stderr and repeat if response has both 'n' and 'y'.
 264   Replace the unit testing framework with CUnit (--enable-testing).
 265   Fix dmeventd snapshot monitoring when multiple extensions were involved.
 266   Don't ignore configure --mandir and --infodir.
 267   Drop pool memory allocated within lv_has_target_type().
 268   Reduce stack allocation of some PATH_MAX sized char buffers.
 269   Unlock memory before writing metadata.
 270   Add query before removing snapshots when inactive snapshot origin is removed.
 271   Allow changing availability state of snapshots.
 272   Skip non-virtual snapshots for availability change for lvchange with vg name.
 273   Skip adjusting mirror region size unless mirror or raid.
 274   Reorder prompt conditions for removal of active volumes.
 275   Avoid 'mda inconsistency' by properly registering UNLABELLED_PV flag.(2.02.86)
 276   Fix --enable-static_link unless using --enable-dmeventd / --enable-udev_sync.
 277   Move gentoo MAKEDEV to /sbin in lvm2create_initrd.
 278   Add filter to avoid scan of device if it is part of active multipath.
 279   Add missing default $LVM_VG_NAME usage for snapshots.
 280   Avoid extent_count overflow with lvextend.
 281   Add missing lvrename mirrored log recursion in for_each_sub_lv.
 282   Improve lv_extend stack reporting.
 283   Increase virtual segment size instead of creating multiple segment list.
 284   Add last_seg(lv) internal function.
 285   Support empty string for log/prefix.
 286   Disallow mirrored logs for cluster mirrors. (2.02.72)
 287   Don't print char type[8] as a plain string in pvck PV type.
 288   Use vg memory pool implicitly for vg read.
 289   Always use vg memory pool for allocated lv segment.
 290   Remove extra 4kB buffer allocated on stack in print_log().
 291   Make move_lv_segment non-static function and use dm_list function.
 292   Pass exclusive LV locks to all nodes in the cluster.
 293   Improve lvcreate chunksize man page description.
 294   Improve man page style for lvcreate & lvs.
 295   Avoid recursive calls to dmeventd in its LVM plugins.
 296   Log dev name now returned to kernel for registering during cmirror CTR.
 297   Fix lv_info open_count test for disabled verify_udev_operations. (2.02.86)
 298   Simplify code for lvm worker thread in clvmd.
 299   Use pthread_barrier to synchronize clvmd threads at startup.
 300   Limit clvmd's thread size to 128KiB and ignore activation/reserved_stack.
 301   Reduce default preallocated stack size to 64KiB.
 302   Add check for access through NULL pointer when refresh_filter() fails.
 303   Use pthread condition for SINGLENODE lock implementation.
 304   Improve backtrace reporting for some dev_manager_ functions.
 305   Change message severity to log_warn when symlink creation fails.
 306   Add ability to convert mirror segtype to RAID1 segtype.
 307   Add ability to convert from linear to RAID1.
 308   Add ability to extend mirrors with '--nosync' option.
 309   Fix splitmirror LV names to maintain consistent state in a cluster.
 310   Apply appropriate udev flags when suspending/resuming mirror sub-LVs.
 311   Fix vgsplit to handle mirrored logs.
 312   Clarify multi-name device filter pattern matching explanation in lvm.conf.
 313   Introduce revert_lv for better pvmove cleanup.
 314   Replace incomplete pvmove activation failure recovery code with a message.
 315   Abort if _finish_pvmove suspend_lvs fails instead of cleaning up incompletely.
 316   Change suspend_lvs to call vg_revert internally.
 317   Change vg_revert to void and remove superfluous calls after failed vg_commit.
 318   Use execvp for CLVMD restart to preserve environment settings.
 319   Restart CLVMD with same cluster manager.
 320   Fix log_error() usage in raid and unknown segtype initialisation.
 321   Improve testing Makefile.
 322   Fix install_ocf make target when srcdir != builddir. (2.02.80)
 323   Support env vars LVM_CLVMD_BINARY and LVM_BINARY in clvmd.
 324   Fix restart of clvmd (preserve exlusive locks). (2.02.64)
 325   Add 'Volume Type' lv_attr characters for RAID and RAID_IMAGE.
 326   Add activation/retry_deactivation to lvm.conf to retry deactivation of an LV.
 327   Replace open_count check with holders/mounted_fs check on lvremove path.
 328   Disallow the creation of mirrors (mirror or raid1 segtype) with only one leg.
 329   Cleanup restart clvmd code (no memory allocation, debug print passed args).
 330   Add all exclusive locks to clvmd restart option args.
 331   Always send the whole clvmd packet header in refresh commands.
 332   Add missing error checks for some system calls in cmirrord.
 333   Add missing log_error() to lvresize command when fsadm tool fails.
 334   Add support for DM_DEV_DIR device path into fsadm script.
 335   Support different PATH setting for fsadm script testing.
 336   Surround all executed commands with quotes in fsadm script.
 337   Fix missing '$' in test for content of "$LVM" in fsadm script.
 338   Move debug message in exec_cmd after sync_local_dev_names.
 339   Fix clvmd processing of invalid request on local socket.
 340   Fix command line option decoding.
 341   Reset LV status when unlinking LV from VG.
 342   Fix overly-strict extent-count divisibility requirements for striped mirrors.
 343   Fix rounding direction in lvresize when reducing volume size.
 344   Fix possible overflow of size if %FREE or %VG is used.
 345   Fix vgchange activation of snapshot with virtual origin.
 346   Activate virtual snapshot origin exclusively (only on local node in cluster).
 347   Fix lv_mirror_count to handle mirrored stripes properly.
 348   Fix failure to down-convert a mirror to linear due to udev "dev open" conflict
 349   Fix mirrored log creation when PE size is small: use log_size >= region_size.
 350   Fix log size calculation when only a log is being added to a mirror.
 351   Add 7th lv_attr char to show the related kernel target.
 352   Terminate pv_attr field correctly. (2.02.86)
 353   Fix 'not not' typo in pvcreate man page.
 354   Improve man page style for fsadm, lvreduce, lvremove, lvrename & lvresize.
 355   Support break for vgchange and vgrefresh operation.
 356   Switch int to unsigned type for pvmetadatacopies for pv_create().
 357   Replace :space: with [\t ] for awk in vgimportclone (not widely supported).
 358   Begin using 64-bit status field flags.
 359   Detect sscanf recovering_region input error in cmirrord pull_state().
 360   Fix error path bitmap leak in cmirrord import_checkpoint().
 361   Log unlink() error in cmirrord remove_lockfile().
 362   Remove incorrect requirement for -j or -m from lvchange error message.
 363   Fix unsafe table load when splitting off smaller mirror from a larger one.
 364   Use size_t return type for text_vg_export_raw() and export_vg_to_buffer().
 365   Add configure --enable-lvmetad for building the (experimental) LVMetaD.
 366   Fix resource leak when strdup fails in _get_device_status() (2.02.85).
 367   Directly allocate buffer memory in a pvck scan instead of using a mempool.
 368   Add configure --with-thin for segtypes "thin" and "thin_pool".
 369   Fix raid shared lib segtype registration (2.02.87).
 370
 371 Version 2.02.88 - 19th August 2011
 372 ==================================
 373   Remove incorrect 'Breaking' error message from allocation code. (2.02.87)
 374   Add lvconvert --merge support for raid1 devices split with --trackchanges.
 375   Support lvconvert of -m1 raid1 devices to a higher number.
 376   Add --trackchanges support to lvconvert --splitmirrors option for raid1.
 377   Support splitting off a single raid1 rimage in lvconvert --splitmirrors.
 378   Use sync_local_dev_names when reducing number of raid rimages in lvconvert.
 379   Add -V as short form of --virtualsize in lvcreate.
 380   Fix make clean not to remove Makefile.  (2.02.87)
 381
 382 Version 2.02.87 - 12th August 2011
 383 ==================================
 384   Fix make distclean to remove stray dmeventd and exported symbols files.
 385   Add global/detect_internal_vg_cache_corruption to lvm.conf.
 386   Use memory pool locking to check for corruption of internal VG structs.
 387   Cache and share generated VG structs.
 388   Fix possible format instance memory leaks and premature releases in _vg_read.
 389   Suppress locking error messages in monitoring init scripts.
 390   If pipe in clvmd fails return busy instead of using uninitialised descriptors.
 391   Add ability to reduce the number of mirrors in raid1 arrays to lvconvert.
 392   Add dmeventd plugin for raid.
 393   Replace free_vg with release_vg and move it to vg.c.
 394   Remove INCONSISTENT_VG flag from the code.
 395   Remove lock from cache in _lock_vol even if unlock fails.
 396   Initialise clvmd locks before lvm context to avoid open descriptor leaks.
 397   Remove obsolete gulm clvmd cluster locking support.
 398   Suppress low-level locking errors and warnings while using --sysinit.
 399   Remove unused inconsistent_seqno variable in _vg_read().
 400   Remove meaningless const type qualifiers on cast type.
 401   Add test for fcntl error in singlenode client code.
 402   Remove --force option from lvrename manpage.
 403   Add global/mirror_segtype_default to pick md raid or dm mirror as default.
 404   Add configure --with-raid for new segtype 'raid' for MD RAID 1/4/5/6 support.
 405   Change DEFAULT_UDEV_SYNC to 1 so udev_sync is used if there is no config file.
 406   Add systemd unit file to provide lvm2 monitoring.
 407   Compare file size (as well as timestamp) to detect changed config file.
 408
 409 Version 2.02.86 - 8th July 2011
 410 ===============================
 411   Remove unnecessary warning in pvcreate for MD linear devices.
 412   Move snapshot removal activation logic into lib/activate.
 413   Cope with a PV only discovered missing when creating deptree.
 414   Abort operation if dm_tree_node_add_target_area fails.
 415   Add activation/checks to lvm.conf to perform additional ioctl validation.
 416   Always preload on suspend, even if no metadata changed (lvchange --refresh).
 417   When suspending, automatically preload newly-visible existing LVs.
 418   Teardown any stray devices with $COMMON_PREFIX during test runs.
 419   Reinstate correct permissions when creating mirrors. [2.02.85]
 420   Append 'm' attribute to pv_attr for missing PVs.
 421   Annotate CLVMD_CMD_SYNC_NAMES in decode_cmd.
 422   Remove enforcement of udev verification when using non-standard /dev location.
 423   Keep an exclusive mirror non-clustered if reloaded e.g. during conversion.
 424   Reject allocation if number of extents is not divisible by area count.
 425   Fix cluster mirror creation to work with new mirror allocation algorithm.
 426   Ignore activation/verify_udev_operations if dm kernel driver vsn < 4.18.
 427   Add activation/verify_udev_operations to lvm.conf, disabled by default.
 428   Call vg_mark_partial_lvs() before VG structure is returned from the cache.
 429   Remove unused internal flag ACTIVATE_EXCL from the code.
 430   Remove useless test of ACTIVATE_EXCL in lv_add_mirrors() clustered code path.
 431   Add lv_activate_opts structure for activation (replacing activation flags).
 432   Ignore inconsistent pre-commit metadata on MISSING_PV devs while activating.
 433   Add proper udev library context initialization and finalization to liblvm.
 434   Fix last snapshot removal to avoid table reload while a device is suspended.
 435   Use dm_get_suspended_counter in replacement critical_section logic.
 436   Downgrade critical_section errors to debug level until it is moved to libdm.
 437   Fix ignored background polling default in vgchange -ay.
 438   Fix pvmove activation sequences to avoid trapped I/O with multiple LVs.
 439   Annotate critical section debug messages.
 440   Fix reduction of mirrors with striped segments to always align to stripe size.
 441   Validate mirror segments size.
 442   Include lvmetad development code in tree.
 443   Fix extent rounding for striped volumes never to reduce more than requested.
 444   Fix create_temp_name to replace any '/' found in the hostname with '?'.
 445   Always use append to file in lvmdump. selinux policy may ban file truncation.
 446   Propagate test mode to clvmd to skip activation and changes to held locks.
 447   Defer writing PV labels until vg_write.
 448   Store label_sector only in struct physical_volume.
 449   Permit --available with lvcreate so non-snapshot LVs need not be activated.
 450   Report sector containing label in verbose message.
 451   Clarify error message when unable to convert an LV into a snapshot of an LV.
 452   Add and use dev_open_readonly and variations.
 453   Do not log a superfluous stack message when the lv is properly processed.
 454   Do not issue an error message when unable to remove .cache on read-only fs.
 455   Avoid memlock size mismatch by preallocating stdio line buffers.
 456   Rewrite vgreduce --removemissing --force to share lvconvert code.
 457   Reorganize lvconvert --repair code to allow reuse.
 458
 459 Version 2.02.85 - 29th April 2011
 460 =================================
 461   Add new obtain_device_list_from_udev setting to lvm.conf.
 462   Obtain device list from udev by default if LVM2 is compiled with udev support.
 463   Add test for vgimportclone and querying of vgnames with duplicate pvs.
 464   Avoid use of released memory when duplicate PV is found.
 465   Add "devices/issue_discards" to lvm.conf.
 466   Issue discards on lvremove and lvreduce etc. if enabled and supported.
 467   Add seg_pe_ranges and devices fields to liblvm.
 468   Fix incorrect tests for dm_snprintf() failure.
 469   Fix some unmatching sign comparation gcc warnings in the code.
 470   Support lv_extend() on empty LVs.
 471   Avoid regenerating cache content when exported VG buffer is unchanged.
 472   Extend the set of memory regions that are not locked to memory.
 473   Workaround some problems when compiled for valgrind memcheck.
 474   Support controlled quit of the lvm_thread_fn function in clvmd.
 475   Fix reading of unallocated memory in lvm1 format import function.
 476   Replace several strncmp() calls with id_equal().
 477   Fix lvmcache_info transfer to orphan_vginfo in _lvmcache_update_vgname().
 478   Fix -Wold-style-definition gcc warnings.
 479   Rename MIRROR_NOTSYNCED to LV_NOTSYNCED.
 480   Fix _move_lv_segments to handle empty LVs.
 481   Fixes for lvconvert (including --repair) of temporary mirror stacks.
 482   Avoid potential loop when removing mirror images.
 483   Fix mirror removal always to take account of preferences as to which.
 484   Fix MIRRORED flag usage.
 485   Remove error messages issued by device_is_usable when run as non-root.
 486   Add missing \0 for grown debug object in _bitset_with_random_bits().
 487   Fix allocation of system_id buffer in volume_group structure.
 488   Fix readlink usage inside get_primary_dev().
 489   Use format instance mempool where possible and adequate.
 490   Call destroy_instance for any PVs found in VG structure during vg_free call.
 491   Add new free_pv_fid fn and use it throughout to free all attached fids.
 492   Use only vg_set_fid and new pv_set_fid fn to assign the format instance.
 493   Make create_text_context fn static and move it inside create_instance fn.
 494   Add mem and ref_count fields to struct format_instance for own mempool use.
 495   Use new alloc_fid fn for common format instance initialisation.
 496   Optimise _get_token() and _eat_space().
 497   Add _lv_postorder_vg() to improve efficiency for all LVs in VG.
 498   Add gdbinit script for debugging.
 499   Use hash tables to speedup string search in vg_validate().
 500   Refactor allocation of VG structure adding alloc_vg().
 501   Avoid possible endless loop in _free_vginfo when 4 or more VGs have same name.
 502   Use empty string instead of /dev// for LV path when there's no VG.
 503   Don't allocate unused VG mempool in _pvsegs_sub_single.
 504   Do not send uninitialised bytes in local clvmd messages.
 505   Support --help option for clvmd and return error for unknown option.
 506   Avoid reading freed memory when printing LV segment type.
 507   Fix syslog initialisation in clvmd to respect lvm.conf setting.
 508   Fix possible overflow in maximum stripe size and physical extent size.
 509   Improve pvremove error message when PV belongs to a VG.
 510   Extend normal policy to allow mirror logs on same PVs as images if necessary.
 511   Improve cling policy to recognise PVs already used during the transaction.
 512   Improve normal allocation algorithm to include clinging to existing areas.
 513   Add allocation/maximise_cling & mirror_logs_require_separate_pvs to lvm.conf.
 514   Adapt metadata balancing code to work with metadata handling changes.
 515   Add old_id field to physical_volume and fix pvchange -u for recent changes.
 516   Allow pvresize on a PV with two metadata areas.
 517   Change pvcreate to use new metadata handling interface.
 518   Restructure existing pv_setup and pv_write and add pv_initialise.
 519   Add internal interface to support adding and removing metadata areas.
 520   Allow internal indexing of metadata areas (PV id + mda order).
 521   Generalise internal format_instance infrastrusture for PV and VG use.
 522   Handle decimal digits with --units instead of ignoring them silently.
 523   Fix remaining warnings and compile with -Wpointer-arith.
 524   Fix gcc warnings for unused variables and const casts.
 525   Add stack backtraces for error paths in process_each_lv().
 526   Temporarily suppress error from calling yes_no_prompt while locks are held.
 527   Replace void* with char* arithmetic in _text_write, _text_read & send_message.
 528   Fix compilation without DEVMAPPER_SUPPORT.
 529   Remove fs_unlock() from lv_suspend error path.
 530   Allow memory to stay locked between leaving and re-entering critical sections.
 531   Rename memlock to critical_section throughout.
 532   Make pv_min_size configurable and increase to 2048KB to exclude floppy drives.
 533   Add find_config_tree_int64 to read 64-bit ints from config.
 534   Ensure resuming exclusive cluster mirror continues to use local mirror target.
 535   Clear temporary postorder LV status flags to allow re-use with same LV struct.
 536   Remove invalid snapshot umount mesg which floods syslog from dmeventd plugin.
 537   Add extended examples to pvmove man page.
 538   Support LVM_TEST_DEVDIR env var for private /dev during testing.
 539
 540 Version 2.02.84 - 9th February 2011
 541 ===================================
 542   Fix CRC32 calculation on big endian CPU (2.02.75).
 543
 544 Version 2.02.83 - 4th February 2011
 545 ===================================
 546   Allow exclusive activation of snapshots in a cluster.
 547   Leave EX lock unchanged when suspending a device in clvmd.
 548   Use sync_dev_names in unlock_vg macro for cluster-wide dev name sync.
 549   Fix fs operation stack handling when multiple operations on same device.
 550   Increase hash table size to 1024 lv names and 64 pv uuids.
 551   Remove fs_unlock() from lv_resume path.
 552   Fix wipe size when setting up mda.
 553   Remove unneeded checks for open_count in lv_info().
 554   Synchronize with udev before checking open_count in lv_info().
 555   Allow CLVMD_CMD_SYNC_NAMES to be propagated around the cluster if requested.
 556   Add "dmsetup ls --tree" output to lvmdump.
 557   Fix udev synchronization with no-locking --sysinit (2.02.80).
 558   Improve man page style consistency for pvcreate, pvremove, pvresize, pvscan.
 559   Avoid rebuilding of uuid validation table.
 560   Improve lvcreate error text from insufficient "extents" to "free space".
 561   Always use O_DIRECT when opening block devices to check for partitioning.
 562
 563 Version 2.02.82 - 24th January 2011
 564 ===================================
 565   Bring lvscan man page up-to-date.
 566   Fix lvchange --test to exit cleanly.
 567   Add change_tag to toollib.
 568   Allow multiple pvchange command line options to be specified together.
 569   Do not fail pvmove polling if another process cleaned up first.
 570   Avoid clvmd incrementing dlm lockspace reference count more than once.
 571   Add -f (don't fork) option to clvmd and fix clvmd -d<num> description.
 572
 573 Version 2.02.81 - 17th January 2011
 574 ===================================
 575   Do not scan devices in dev_reset_error_count().
 576   Skip unnecessary LOCK_NULL unlock call during volume deactivation.
 577   Skip fs_unlock when calling exec_cmd within activation code (for modprobe).
 578   Extend exec_cmd params to specify when device sync (fs_unlock) is needed.
 579   Replace fs_unlock by sync_local_dev_names to notify local clvmd. (2.02.80)
 580   Introduce sync_local_dev_names and CLVMD_CMD_SYNC_NAMES to issue fs_unlock.
 581   Accept fusion fio in device type filter.
 582   Add ability to convert mirror log type from disk to mirrored.
 583
 584 Version 2.02.80 - 10th January 2011
 585 ===================================
 586   Use same dm cookie for consecutive dm ops in same VG to reduce udev waits.
 587   Speed up command processing by caching resolved config tree.
 588   Pass config_tree to renamed function import_vg_from_config_tree().
 589   Detect NULL handle in get_property().
 590   Fix superfluous /usr in ocf_scriptdir instalation path.
 591   Add --with-ocfdir configurable option.
 592   Add aclocal.m4 (for pkgconfig).
 593   Fix memory leak in persistent filter creation error path.
 594   Check for errors setting up dm_task struct in _setup_task().
 595   Fail polldaemon creation when lvmcache_init() fails.
 596   Return PERCENT_INVALID for errors in _copy_percent() and _snap_percent().
 597   Remove some unused variables.
 598   Improve general lvconvert man page description.
 599   Return 0 from cmirrord initscript 'start' if daemon is already running.
 600   Fix wrongly paired unlocking of VG_GLOBAL in pvchange. (2.02.66)
 601   Add backtraces for backup and backup_remove fail paths.
 602   Detect errors from dm_task_set calls in _get_device_info (dmeventd).
 603   Add backtraces for archive and backup_locally in check_current_backup().
 604   Fix memory leak in debug mode of restart_clvmd() error path.
 605   Log error message for pthread_join() failure in clvmd.
 606
 607 Version 2.02.79 - 20th December 2010
 608 ====================================
 609   Remove some unused variables.
 610   Add missing test for reallocation error in _find_parallel_space().
 611   Add checks for allocation errors in config node cloning.
 612   Fix error path if regex engine cannot be created in _build_matcher().
 613   Use char* arithmetic in target_version(), _process_all() & _targets().
 614   Fixing const cast gcc warnings in the code.
 615   Check read() and close() results in _get_cmdline().
 616   Add const for struct config_node usage.
 617   Fix NULL pointer check in error path in clvmd do_command(). (2.02.78)
 618   Fix device.c #include to ensure 64-bit fopen64 use. (2.02.51)
 619   Add copy_percent and snap_percent to liblvm.
 620   Enhance vg_validate to ensure integrity of LV and PV structs referenced.
 621   Enhance vg_validate to check composition of pvmove LVs.
 622   Create /var/run/lvm directory during clvmd initialisation if missing.
 623   Use new dm_prepare_selinux_context instead of dm_set_selinux_context.
 624   Avoid revalidating the label cache immediately after scanning.
 625   Support scanning for a single VG in independent mdas.
 626   Don't skip full scan when independent mdas are present even if memlock is set.
 627   Set cmd->independent_metadata_areas if metadata/dirs or disk_areas in use.
 628   Cope better with an undefined target_percent operation in _percent_run.
 629   Avoid writing to freed memory in vg_release and rename to free_vg.  (2.02.78)
 630
 631 Version 2.02.78 - 6th December 2010
 632 ===================================
 633   Abort if segment tag allocation fails in pool format _add_stripe_seg.
 634   Abort in _mirrored_transient_status if referenced log/image LV is not active.
 635   Add backtraces for dev_set() and dev_close_immediate() errors in set_lv().
 636   Log any unlink() error in clvmd remove_lockfile().
 637   Log any pipe write() or close() errors in clvmd child_init_signal().
 638   Detect if orphan vginfo was lost from cache before _lvmcache_update_vgname().
 639   Do a full rescan if some device is missing in lvm1 format read_pvs_in_vg.
 640   Add missing check that dm_pool_create succeeded in write_config_node().
 641   Use dm_snprintf in clvmd-command.c to ensure an overlong buffer is truncated.
 642   Don't write to buffer if its reallocation failed in clvmd do_command().
 643   Switch from float to fixed point percentage handling.
 644   Avoid misleading missing PV warnings in vgextend --restoremissing.
 645   Fix memory leak when VG allocation policy in metadata is invalid.
 646   Ignore unrecognised allocation policy found in metadata instead of aborting.
 647   Factor out tag printing into _out_tags and avoid leaking string buffer.
 648   Remove some unused variables & assignments.
 649   Add missing vg_release calls in _vg_read_by_vgid.
 650   Fix debug logging of derived flag LCK_CACHE in clvmd.
 651   Fix test for no system_dir in _init_backup().
 652   Disallow lvconvert ops that both allocate & free supplied PEs in a single cmd.
 653   Fix liblvm seg_size to give bytes not sectors.
 654   Add functions to look up LV/PV by name/uuid to liblvm.
 655   Free cmd_context if fallback to LVM1 fails in lvm2_main().
 656   Free device name buffer in dmsetup parse_loop_device_name() error paths.
 657   Close format lib if init_format_fn fails in _init_formats().
 658   Don't leave /proc/mounts open after dmeventd snapshot event processing.
 659   Fix out-of-scope arg_vgnames use in process_each_lv().
 660   Remove incorrect dm_task_destroy(NULL) from _node_clear_table() error path.
 661   Add missing closedir in _rm_blks after removing stray LVM1 VG files.
 662   Suppress 'No PV label' message when removing several PVs without mdas.
 663   Fix default /etc/lvm permissions to be 0755. (2.02.66)
 664
 665 Version 2.02.77 - 22nd November 2010
 666 ====================================
 667   Allocate a pool for dummy VG in _pvsegs_sub_single.
 668   Add PV and LV segment types and functions to liblvm.
 669   Add set_property functions to liblvm.
 670   Remove tag length restriction and allow / = ! : # & characters.
 671   Support repetition of --addtag and --deltag arguments.
 672   Add infrastructure for specific cmdline arguments to be repeated in groups.
 673   Split the_args cmdline arguments and values into arg_props and arg_values.
 674   Fix fsadm no longer to require '-f' to resize an unmounted filesystem.
 675   Fix fsadm to detect mounted filesystems on older systems. (2.0.75)
 676   Extend cling allocation policy to recognise PV tags (cling_by_tags).
 677   Add allocation/cling_tag_list to lvm.conf.
 678   Regenerate configure with 'autoreconf' for --enable-ocf. (2.02.76)
 679
 680 Version 2.02.76 - 8th November 2010
 681 ===================================
 682   Clarify error messages when activation fails due to activation filter use.
 683   Add pacemaker script VolumeGroup.ocf with configure --enable-ocf.
 684   Import make.tmpl into include/ Makefile.
 685   Fix handling of online filesystem resize (using new fsadm return code).
 686   Add DIAGNOSTICS section to fsadm man page.
 687   Modify fsadm to return different status code for check of mounted filesystem.
 688   Update VG metadata only once in vgchange when making multiple changes.
 689   Allow independent vgchange arguments to be used together.
 690   Automatically unmount invalidated snapshots in dmeventd.
 691   Suppress some superfluous messages from clang static analysis.
 692   Fix a deadlock caused by double close in clvmd.
 693   Fix NULL pointer dereference on too-large MDA error path in _vg_read_raw_area.
 694   Use static for internal _align_chunk() and _new_chunk() from pool-fast.c.
 695   Fix vgchange to process -a, --refresh, --monitor and --poll like lvchange.
 696   Add lvm2app functions to query any pv, vg, or lv property / report field.
 697
 698 Version 2.02.75 - 25th October 2010
 699 ===================================
 700   Annotate more variables and parameters as const.
 701   Fix missing variable initialization in cluster_send() function from cmirrord.
 702   Fix pointer for VG name in _pv_resize_single error code path.
 703   Fix warning for changed alignment requirements for dmeventd read/write func.
 704   Add global/metadata_read_only to use unrepaired metadata in read-only cmds.
 705   Don't take write lock in vgchange --refresh, --poll or --monitor.
 706   Skip dm devices in scan if they contain only error targets or are empty.
 707   Fix strict-aliasing compile warning in partition table scanning.
 708   Fix pthread mutex usage deadlock in clvmd.
 709   Automatically extend snapshots with dmeventd according to policy in lvm.conf.
 710   Add activation/snapshot_autoextend_threshold/percent to lvm.conf.
 711   Fix liblvm2cmd link order to support --as-needed.
 712   Remove dependency on libm by replacing floor() by an integer-based algorithm.
 713   Fix hang when repairing a mirrored-log that had both devs fail.
 714   Convey need for snapshot-merge target in lvconvert error message and man page.
 715   Add devices/disable_after_error_count config to limit access to failing devs.
 716   Give correct error message when creating a too-small snapshot.
 717   Implement vgextend --restoremissing to reinstate missing devs that return.
 718   Make lvconvert respect --yes and --force when converting an inactive log.
 719   Refactor and add 'get' functions for lv properties/fields.
 720   Update script for fsadm testing.
 721   Better support of noninteractive shell execution of fsadm.
 722   Fix usage of --yes flag for ReiserFS resize in fsadm.
 723   Fix detection of mounted filesystems for fsadm when udev is used.
 724   Fix assignment of default value to LVM variable in fsadm.
 725   Fix support for --yes flag for fsadm.
 726   Do not execute lvresize from fsadm --dry-run.
 727   Fix fsadm return error code from user's break action.
 728   Allow CC to be overridden at build time (for 'scan-build make').
 729   Rename 'flags' to 'status' in struct metadata_area.
 730   Avoid segfault by limiting partial mode for lvm1 metadata. (2.02.74)
 731   Use dm_zalloc and dm_pool_zalloc throughout.
 732   Add pv_get_property and create generic internal _get_property function.
 733   Add 'get' functions for pv and vg properties/fields.
 734   Make generic GET_*_PROPERTY_FN macros with secondary macro for vg, pv & lv.
 735   Add tags_format_and_copy() common function and call from _tags_disp.
 736   Add id_format_and_copy() common function and call from _uuid_disp.
 737   Refactor report.c '*_disp' functions to call supporting functions.
 738   Move parts of metadata*.[ch] into new {pv|vg|lv}.[ch] files.
 739   Fix vg_read memory leak with directory-based metadata.
 740   Fix memory leak of config_tree in reinitialization code path.
 741   Fix pool destruction order in dmeventd_lvm2_exit() to avoid leak debug mesg.
 742   Read whole /proc/self/maps file before working with maps entries.
 743   Speed up unquoting of quoted double quotes and backslashes.
 744   Speed up CRC32 calculations by using a larger lookup table.
 745
 746 Version 2.02.74 - 24th September 2010
 747 =====================================
 748   Allow : and @ to be escaped with \ in device names of PVs.
 749   Replace alloca with dm_malloc in _aligned_io to avoid stack corruption.
 750   Fix partial mode operations for lvm1 metadata format.
 751   Track recursive filter iteration to avoid refreshing while in use. (2.02.56)
 752   Revert to old glibc vsnprintf behaviour in emit_to_buffer() to catch overflow.
 753   Allocate buffer for metadata tags dynamically to remove 4k limit.
 754   Add random suffix to archive file names to prevent races when being created.
 755   Reinitialize archive and backup handling on toolcontext refresh.
 756   Make poll_mirror_progress report PROGRESS_CHECK_FAILED if LV is not a mirror.
 757   Like mirrors, don't scan origins if ignore_suspended_devices() is set.
 758   Fix return type qualifier to avoid compiler warning. (2.02.69)
 759   Automatically generate LSB Requires-Start for clvmd init script.
 760   Fix return code of pvmove --abort PV.
 761   Fix pvmove --abort to remove even for empty pvmove LV.
 762   Add configure --with-default-data-alignment.
 763   Update heuristic used for default and detected data alignment.
 764   Add "devices/default_data_alignment" to lvm.conf.
 765   Add implementation for simple numeric 'get' property functions.
 766   Define GET_NUM_PROPERTY_FN macro to simplify numeric property 'get' function
 767   Add properties.[ch] to lib/report using columns.h.
 768   Add macro definitions to report infrastructure for character array length.
 769   Remove explicit double quotes from columns.h 'id' entries.
 770   Add 'flags' field to columns.h and define FIELD_MODIFIABLE.
 771   Add vg_mda_size and vg_mda_free functions.
 772   Simplify MD/swap signature detection in pvcreate and allow aborting.
 773   Allow --yes to be used without --force mode.
 774   Fix file descriptor leak in swap signature detection error path.
 775   Detect and allow abort in pvcreate if LUKS signature is detected.
 776   Always mask lock flags correctly when checking for LCK_WRITE.
 777
 778 Version 2.02.73 - 18th August 2010
 779 ==================================
 780   Fix potential for corruption during cluster mirror device failure.
 781   Use 'SINGLENODE' instead of 'dead' in clvmd singlenode messages.
 782   Ignore snapshots when performing mirror recovery beneath an origin.
 783   Pass LCK_ORIGIN_ONLY flag around cluster.
 784   Add suspend_lv_origin and resume_lv_origin using LCK_ORIGIN_ONLY.
 785   Allow internal suspend and resume of origin without its snapshots.
 786   Fix dev_manager_transient to access -real device not snapshot-origin.
 787   Monitor origin -real device below snapshot instead of overlay device.
 788   Don't really change monitoring status when in test mode.
 789   Fix some exit statuses when starting/stopping monitoring fails.
 790   Enable snapshot monitoring by default when dmeventd is enabled.
 791   Move cloned libdevmapper-event client code from segments into lib/activate.
 792   Fix 'lvconvert --splitmirrors' in cluster operation.
 793   Fix clvmd init script exit code to return 4 when executed as non-root user.
 794   Change default alignment of pe_start to 1MB.
 795   Add --norestorefile option to pvcreate.
 796   Require --restorefile when using pvcreate --uuid.
 797   Recognise and give preference to md device partitions (blkext major).
 798   Never scan internal LVM devices.
 799   Don't ignore user-specified PVs in split-mirror operations. (2.02.71)
 800   Fix data corruption bug in cluster mirrors.
 801   Require logical volume(s) to be explicitly named for lvconvert --merge.
 802   Avoid changing aligned pe_start as a side-effect of very verbose logging.
 803   Use built-in rule for device aliases: block/ < dm- < disk/ < mapper/ < other.
 804   Fix const warning in dev_manager_info() and _dev_manager_lv_rmnodes().
 805   Fix const warning in archive_file structure from archive.c.
 806   Clean generated files .exported_symbols_generated, example.conf for distclean.
 807   Handle failure of all mirrored log devices and all but one mirror leg.
 808   Disallow 'mirrored' log type for cluster mirrors.
 809   Do not use VPATH in include/Makefile.
 810   Fix exported_symbols generation to use standard compiler arguments.
 811   Use #include <> not "" in lvm2app.h which gets installed on the system.
 812   Make lib and liblvm.device-mapper wait for include file generation.
 813   Fix configure to supply DEFAULT_RUN_DIR to Makefiles.
 814   Fix allocation of wrong number of mirror logs with 'remove' fault policy.
 815
 816 Version 2.02.72 - 28th July 2010  [CVE-2010-2526]
 817 =================================================
 818   Change clvmd to communicate with lvm2 via a socket in /var/run/lvm.
 819   Return controlled error if clvmd is run by non-root user.
 820   Add configure --default-run-dir for /var/run/lvm.
 821   Never use clvmd singlenode unless explicitly requested with -Isinglenode.
 822
 823 Version 2.02.71 - 28th July 2010
 824 ================================
 825   Document LVM fault handling in doc/lvm_fault_handling.txt.
 826   Make vgck warn about missing PVs.
 827   Clarify help text for vg_mda_count.
 828   Check if cluster log daemon is running before allowing cmirror create.
 829   Add unit-tests dir.
 830   Add configure --enable-testing and reports and report-generators dirs.
 831   Correct LV list order used by lvconvert when splitting a mirror.
 832   Check if LV with specified name already exists when splitting a mirror.
 833   Fix suspend/resume logic for LVs resulting from splitting a mirror.
 834   Update pvcreate, {pv|vg}change, and lvm.conf man pages about metadataignore.
 835   Switch cmirrord and clvmd to use dm_create_lockfile.
 836   Allow clvmd pidfile to be configurable.
 837   Update comments about memory handling in lvm2app.h.
 838   Add more verbose messages while checking volume_list and hosttags settings.
 839   Add log_error when strdup fails in {vg|lv}_change_tag().
 840   Remove unnecessary includes in liblvm files.
 841   Use __attribute__ consistently throughout.
 842   Fix redundant declarations and always compile with -Wredundant-decls.
 843   Fix possible hang when all mirror images of a mirrored log fail.
 844   Pass metadataignore to pv_create, pv_setup, _mda_setup, and add_mda.
 845   Init mda->list in mda_copy.
 846   Do not log backtrace in valid _lv_resume() code path.
 847   Cleanup help strings in configure.in.
 848   Prompt if metadataignore with vgextend or pvchange would adjust vg_mda_copies.
 849   Adjust vg_mda_copies if metadataignore given with vgextend or pvchange.
 850   Adjust auto-metadata repair and caching logic to try to cope with empty mdas.
 851
 852 Version 2.02.70 - 6th July 2010
 853 ===============================
 854   Remove log directly if all mirror images of a mirrored log fail.
 855   Randomly select which mdas to use or ignore.
 856   Add some missing standard configure.in checks.
 857   Add printf format attributes to yes_no_prompt and fix a caller.
 858   Always pass unsuspended dm devices through persistent filter to other filters.
 859   Move test for suspended dm devices ahead of other filters.
 860   Fix another segfault in clvmd -R if no response from daemon. (2.02.68)
 861   Remove superfluous suspended device counter from clvmd.
 862   Fix lvm shell crash when input is entirely whitespace.
 863   Update partial mode warning message.
 864   Preserve memlock balance in clvmd when activation triggers a resume.
 865   Restore the removemissing behaviour of lvconvert --repair --use-policies.
 866
 867 Version 2.02.69 - 30th June 2010
 868 ================================
 869   Fix vgremove to allow removal of VG with missing PVs. (2.02.52)
 870   Add metadata/vgmetadatacopies to lvm.conf.
 871   Add --metadataignore to pvcreate and vgextend.
 872   Add vg_mda_copies, pv_mda_used_count and vg_mda_used_count to reports.
 873   Describe --vgmetadatacopies in lvm.conf and other man pages.
 874   Add --[vg]metadatacopies to select number of mdas to use in a VG.
 875   Make the metadata ignore bit control read/write metadata areas in a PV.
 876   Add pvchange --metadataignore to set or clear a metadata ignore bit.
 877   Refactor metadata code to prepare for --metadataignore / --vgmetadatacopies.
 878   Ensure region_size of mirrored log does not exceed its full size.
 879   Generate liblvm2app exported symbols from header file.
 880   Preload libc locale messages to prevent reading it in memory locked state.
 881   Fix handling of simultaneous mirror image and mirrored log image failure.
 882
 883 Version 2.02.68 - 23rd June 2010
 884 ================================
 885   Fix clvmd initscript status to print only active clustered LVs.
 886   Add lv_path to reports to offer full /dev pathname.
 887   Fix typo in warning message about missing device with allocated data areas.
 888   Add device name and offset to raw_read_mda_header error messages.
 889   Honour log argument when down-converting stacked mirror.
 890   Sleep to workaround clvmd -S race: socket closed early and server drops cmd.
 891   Use early udev synchronisation and update of dev nodes for clustered mirrors.
 892   Remove incorrect inclusion of kdev_t.h from cmirrord/functions.h.
 893   Add man pages for lvmconf and non-existent lvmsadc and lvmsar tools.
 894   Exit successfully when using -o help (but not -o +help) with LVM reports.
 895   Do not use internal DLM lock definitions in generic LVM2 clvmd code.
 896   Add --force, --nofsck and --resizefs to lvresize/extend/reduce man pages.
 897   Fix lvm2cmd example in documentation.
 898   Allow use of lvm2app and lvm2cmd headers in C++ code.
 899   Remove unused #includes from clvmd files and introduce clvmd-common.h.
 900   Move common inclusions to clvmd-common.h.
 901   Use #include "" for libdevmapper.h and configure.h throughout tree.
 902   Fix LVM_PATH expansion when exec_prefix=NONE. (2.02.67)
 903   Fix segfault in clvmd -R if no response from daemon received.
 904
 905 Version 2.02.67 - 4th June 2010
 906 ===============================
 907   Handle failed restart of clvmd using -S switch properly.
 908   Fix clvmd initscript restart command to start clvmd if not yet running.
 909   Use built-in absolute paths in clvmd (clvmd restart and PV and LV queries).
 910   Require partial option in lvchange --refresh for partial LVs.
 911   Do not fail lvm_init() if init_logging() or _init_rand() generates an errno.
 912   Don't merge unchanged persistent cache file before dumping if tool scanned.
 913   Fix incorrect memory pool deallocation while using vg_read for files.
 914   Add --type parameter description to the lvcreate man page.
 915   Replace strncmp kernel version number checks with proper ones.
 916   Avoid selecting names under /dev/block if there is an alternative.
 917   Update clustered log kernel module name to log-userspace for 2.6.31 onwards.
 918   Add replicators' LVs to dtree for activation.
 919   Supress activation message if there is a missing replicator VG.
 920   Fix scripts/relpath.awk to work in mawk
 921   Extend lock_vol to check for missing replicator VGs first.
 922   Update _process_one_vg and process_each_lv_in_vg to populate cmd_vg.
 923   Add cmd_vg structure and associated functions for replicator.
 924   Extend _lv_each_dependency() to handle replicator dependencies.
 925   Add check_replicator_segment() to catch internal replicator errors.
 926   Initial support for replicator metadata.
 927   Extend process_each_lv_in_vg() to provide list of failed lvnames.
 928   Consistently return ECMD_FAILED if process_each_*lv() is interrupted.
 929
 930 Version 2.02.66 - 20th May 2010
 931 ===============================
 932   If unable to obtain snapshot percentage leave value blank on reports.
 933   Add install_system_dirs and install_initscripts makefile targets.
 934   Add configure options for system and locking directories.
 935   Generate example.conf so default lvm.conf contents can be configured.
 936   Install lvmconf script by default.
 937   Remove unnecessary versioned dmeventd plugin symlinks.
 938   Add tests for lvm_vgname_from_{pvid|device}.
 939   Add lvm2app interfaces to lookup a vgname from a pvid and pvname.
 940   Update pvchange to always obtain a vg handle for each pv to process.
 941   Add find_vgname_from_{pvname|pvid} functions.
 942   Add pvid_from_devname and lvmcache_vgname_from_pvid lvmcache functions.
 943   Validate orphan and VG_GLOBAL lock order too.
 944   Accept orphan VG names as parameters to lock_vol() and related functions.
 945   Use is_orphan_vg in place of hard-coded prefix tests and add is_global_vg.
 946
 947 Version 2.02.65 - 17th May 2010
 948 ===============================
 949   Fix clvmd init script never to deactivate non-clustered volume groups.
 950   Disallow vgchange --clustered if there are active mirrors or snapshots.
 951   Introduce lv_is_mirrored.
 952   Use /bin/bash for scripts with bashisms.
 953   Skip internal lvm devices in scan if ignore_suspended_devices is set.
 954   Do not merge old device cache after we run full scan. (2.02.56)
 955   Add pkgconfigdir Makefile variable for make install override.
 956   Configure pkgconfig udev and selinux dependencies.
 957   Switch Libs.private to Requires.private in devmapper.pc and lvm2app.pc.
 958   Use pkgconfig Requires.private for devmapper-event.pc.
 959   Add libdevmapper to linked libdevmapper-event.so.
 960   Link liblvm2cmd.so with libdevmapper-event and libdevmapper.
 961   Fix truncated total size displayed by pvscan.
 962   Add new --sysinit compound option to vgchange and lvchange.
 963   Drop duplicate errors for read failures and missing devices to verbose level.
 964   Use $(libdir)/lvm2 with make install_lvm2_plugin.
 965   Use $(libdir)/device-mapper with make install_dm_plugin.
 966   Add dm_list_splice() function to join two lists together.
 967
 968 Version 2.02.64 - 30th April 2010
 969 =================================
 970   Avoid pointless initialisation when the 'version' command is run directly.
 971   Fix memory leak for invalid regex pattern input.
 972   Display invalid regex pattern for filter configuration in case of error.
 973   Remove no-longer-used arg_ptr_value.
 974   Fix -M and --type to use strings, not pointers that change on config refresh.
 975   Fix lvconvert error message when existing mirrored LV is not found.
 976   Set appropriate udev flags for reserved LVs.
 977   Disallow the direct removal of a merging snapshot.
 978   Don't preload the origin when removing a snapshot whose merge is pending.
 979   Disallow the addition of mirror images while a conversion is happening.
 980   Disallow primary mirror image removal when mirror is not in-sync.
 981   Remove obsolete --name parameter from vgcfgrestore.
 982   Add -S command to clvmd to restart the daemon preserving exclusive locks.
 983   Increment lvm2app version from 1 to 2 (memory allocation changes).
 984   Change lvm2app memory alloc/free for pv/vg/lv properties.
 985   Change daemon lock filename from lvm2_monitor to lvm2-monitor for consistency.
 986   Install symbolic .so links with relative paths between usrlibdir and libdir.
 987   Add awk script relpath.awk to calculate paths for relative symlinks.
 988   Use @AWK@ in makefiles.
 989   Fix double DESTDIR usage for infodir and mandir.
 990
 991 Version 2.02.63 - 14th April 2010
 992 =================================
 993   Rename lvm_dump.sh to lvmdump.sh.
 994   Allow incomplete mirror restore in lvconvert --repair upon insufficient space.
 995   Do not reset position in metadata ring buffer on vgrename and vgcfgrestore.
 996   Allow VGs with active LVs to be renamed.
 997   Use UUIDs instead of names while processing event handlers.
 998   Only pass visible LVs to tools in cmdline VG name/tag expansions without -a.
 999   Use typedefs for toollib process_each functions.
1000   Use C locales and use_mlockall for clvmd.
1001   Refactor code related to vg->pvs list and add pv->vg link.
1002   Mask LCK_HOLD flag in cluster VG locks for backwards compatibility.
1003   Add activation/polling_interval to lvm.conf as --interval default.
1004   Don't ignore error if resuming any LV fails in resume_lvs.
1005   Skip closing persistent filter cache file if open failed.
1006   Install .a and .so links into $(usrlibdir).
1007   Add --enable-write_install options to install user-writable files.
1008   Use INSTALL_PROGRAM/DATA/WDATA target.
1009   Switch from using VPATH  to vpath in Makefiles.
1010   Permit mimage LVs to be striped in lvcreate, lvresize and lvconvert.
1011   Fix pvmove allocation to take existing parallel stripes into account.
1012   Add pvmove_source_seg to struct lv_segment.
1013   Fix incorrect removal of symlinks after LV deactivation fails.
1014   Fix is_partitioned_dev not to attempt to reopen device.
1015   Fix another thread race in clvmd.
1016   Refactor management of vg->pvs list.
1017   Fix lcov rules and generate better coverage report.
1018   Improve vg_validate to detect some loops in lists.
1019   Change most remaining log_error WARNING messages to log_warn.
1020   Always use blocking lock for VGs and orphan locks.
1021   Allocate all memory for segments from private VG mempool.
1022   Return newly allocated PV segment after segment split.
1023   Optimise searching PV segments for seeking the most recently-added.
1024   Remove vg_validate call when parsing cached metadata.
1025   Use hash table of LVs to speed up parsing of text metadata with many LVs.
1026   Fix two vg_validate messages, adding whitespace and parentheses.
1027   When dmeventd is not forking because of -d flag, don't kill parent process.
1028   Fix 'make install' when $(builddir) is different from $(srcdir).
1029   Fix dso resource leak in error path of dmeventd.
1030   Use C locales and use_mlockall for dmeventd.
1031   Fix --alloc contiguous policy only to allocate one set of parallel areas.
1032   Do not allow {vg|lv}change --ignoremonitoring if on clustered VG.
1033   Improved dependency tracking for dmeventd and liblvm2cmd sources.
1034   Improved Makefile rules for distclean and cflow targets.
1035   Add ability to create mirrored logs for mirror LVs.
1036   Fix clvmd cluster propagation of dmeventd monitoring mode.
1037   Allow ALLOC_ANYWHERE to split contiguous areas.
1038   Use INTERNAL_ERROR for internal errors throughout tree.
1039   Add some assertions to allocation code.
1040   Introduce pv_area_used into allocation algorithm and add debug messages.
1041   Add activation/monitoring to lvm.conf.
1042   Add --monitor and --ignoremonitoring to lvcreate.
1043   Allow dynamic extension of array of areas selected as allocation candidates.
1044   Export and use only valid cookie value in test suite.
1045   Remove const modifier for struct volume_group* from process_each_lv_in_vg().
1046   Don't allow resizing of internal logical volumes.
1047   Fix libdevmapper-event pkgconfig version string to match libdevmapper.
1048   Avoid scanning all pvs in the system if operating on a device with mdas.
1049   Add configure --with-clvmd=singlenode to use clvmd w/o cluster infrastructure.
1050   Get stacktrace if testsuite test drops core and lvm was built with debugging.
1051   Disable long living process flag in lvm2app.
1052   Fix pvcreate device md filter check.
1053   Suppress repeated errors about the same missing PV uuids.
1054   Bypass full device scans when using internally-cached VG metadata.
1055   Only do one full device scan during each read of text format metadata.
1056   Remove unnecessary full_scan parameter from get_vgids and get_vgnames calls.
1057   Look up missing PVs by uuid not dev_name in _pvs_single to avoid invalid stat.
1058   Make find_pv_in_vg_by_uuid() return same type as related functions.
1059   Introduce is_missing_pv().
1060   Fix clvmd Makefile to not overwrite LIBS from template definition.
1061
1062 Version 2.02.62 - 9th March 2010
1063 ================================
1064   Add use_mlockall and mlock_filter to activation section of lvm.conf.
1065   Add default alternative to mlockall using mlock to reduce pinned memory size.
1066   Remove -rdynamic from static builds.
1067   Update checks for pthread, readline & selinux libs and link only when needed.
1068   Introduce makefile vars UDEV_LIBS, DL_LIBS, SELINUX_LIBS, STATIC_LIBS.
1069   Introduce makefile vars LVMINTERNAL_LIBS, READLINE_LIBS, PTHREAD_LIBS.
1070   Toggle configure help to print --disable-fsadm.
1071   Use $() instead of ${} consistently for all Makefile variables.
1072   Replace CFLOW_CMD only in make.tmpl and use it as variable elsewhere.
1073   Use $(top_builddir) for inclusion of make.tmpl in Makefiles.
1074   Fix autoconf warning about ignored datarootdir.
1075   Increase AC_PREREQ version to 2.61 (for AC_PROC_SED, AC_PROG_MKDIR_P).
1076   Handle misaligned devices that report alignment_offset of -1.
1077   Extend core allocation code in preparation for mirrored log areas.
1078   Rewrite clvmd init script.
1079   Remove lvs_in_vg_activated_by_uuid_only call.
1080   No longer fall back to looking up active devices by name if uuid not found.
1081   Don't touch /dev in vgmknodes if activation is disabled.
1082   Update lvm2app.h Doxygen comments and add lvm2app Doxygen config file.
1083   Update nightly tests and lvm2app unit tests to cover tags.
1084   Add lvm2app functions lvm_{vg|lv}_{get|add|remove}_tag() functions.
1085   Add dm_pool_strdup to allocate and copy memory in tag library function.
1086   Refactor vgcreate, vgchange, and lvchange for tag library function.
1087   Refactor snapshot-merge deptree and device removal to support info-by-uuid.
1088
1089 Version 2.02.61 - 15th February 2010
1090 ====================================
1091   Fix some consts and floating point gcc warnings.
1092   Fix dm_report_field_uint64 function to accept 64-bit ints.
1093   Change readhead display to use 32-bit -1 const instead of 64-bit.
1094   Add LVM_SUPPRESS_LOCKING_FAILURE_MESSAGES environment variable.
1095   Remove hard-coding that skipped _mimage devices from 11-dm-lvm.rules.
1096   Use udev transactions in test suite.
1097   Set udev state automatically instead of using LVM_UDEV_DISABLE_CHECKING.
1098   Add lvm_pv_get_size, lvm_pv_get_free and lvm_pv_get_dev_size to lvm2app.
1099   Change lvm2app to return all sizes in bytes as documented (not sectors).
1100   Add 'fail_if_percent_unsupported' arg to _percent and _percent_run.
1101   Remove false "failed to find tree node" error when activating merging origin.
1102   Exit with success when lvconvert --repair --use-policies performs no action.
1103   Accept a list of LVs with 'lvconvert --merge @tag' using process_each_lv.
1104   Avoid unnecessary second resync when adding mimage to core-logged mirror.
1105   Exclude internal VG names and uuids from lists returned through lvm2app.
1106   Add %ORIGIN support to lv{create,extend,reduce,resize} --extents.
1107   Add _mda_copy to clone a struct metadata_area.
1108   Remove pointless versioned symlinks to dmeventd plugin libraries.
1109   Fix dmeventd snapshot plugin build dependency.
1110   Make clvmd -V return status zero.
1111   Remove unnecessary 'dmsetup resume' following 'dmsetup create' in tests.
1112   Fix cmirrord segfault in clog_cpg list processing when converting mirror log.
1113   Deactivate temporary pvmove mirror cluster-wide when activating it fails.
1114   Always query device by uuid and not name in clvmd.
1115   Add missing metadata vg_reverts in pvmove error paths.
1116   Unlock shared lock in clvmd if activation calls fail.
1117   Return success from dev_manager_info with non-existent uuid if ioctl succeeds.
1118
1119 Version 2.02.60 - 23rd January 2010
1120 ===================================
1121   Extend cmirrord man page.
1122   Sleep before first progress check if pvmove/lvconvert interval has prefix '+'.
1123   Default to checking progress before waiting in _wait_for_single_lv.
1124   Fix cmirror initscript (including syntax error).
1125   Eliminate avoidable ioctls for checking open_count in _add_new_lv_to_dtree.
1126   Disable memory debugging if dmeventd is configured. (Not thread-safe.)
1127   Fix first log message prefix in syslog for dmeventd plugins.
1128   Fix exported symbols names for dmeventd lvm2 wrapper plugin.
1129   Make failed locking initialisation messages more descriptive.
1130
1131 Version 2.02.59 - 21st January 2010
1132 ===================================
1133   Add libdevmapper-event-lvm2.so to serialise dmeventd plugin liblvm2cmd use.
1134   Cleanup memory initialization and freeing in pv_read() and pv_create().
1135   Clear pointer and counters after their release in _fin_commands().
1136   Stop dmeventd trying to access already-removed snapshots.
1137   Remove (fallback) /dev mknod from cmirrord.
1138   Add t-topology-support.sh and t-snapshot-merge.sh tests.
1139   Fix clvmd to never scan suspended devices.
1140   Fix dmeventd build outside source tree.
1141   Assorted cmirror code changes to remove various compiler warnings.
1142   Fix detection of completed snapshot merge.
1143   Add Red Hat cmirror initscript (unfinished).
1144   Add cmirrord man page (incomplete).
1145   Make cluster log communication structures architecture independant.
1146   Fix cluster log in-memory bitmap handling.
1147   Improve snapshot merge metadata import validation.
1148   Improve target type compatibility checking in _percent_run().
1149   Add 'target_status_compatible' method to 'struct segtype_handler'.
1150   Change underscore to hyphen in table line for clustered log type.
1151
1152 Version 2.02.58 - 14th January 2010
1153 ===================================
1154   Cleanup some minor gcc warnings.
1155   Add --merge to lvconvert to merge a snapshot into its origin.
1156   Fix clvmd automatic target module loading crash (no reset_locking fn).
1157   Fix allocation code not to stop at the first area of a PV that fits.
1158
1159 Version 2.02.57 - 12th January 2010
1160 ===================================
1161   Ensure exactly one process returns from poll_daemon(), never two.
1162   Reset _vgs_locked in lvmcache_init() in child after forking.
1163   Define {DM, LVM}_UDEV_DISABLE_CHECKING=1 environment variables during tests.
1164   Enable udev_sync and udev_rules in lvm.conf by default while running tests.
1165   If LVM_UDEV_DISABLE_CHECKING in set in environment, disable udev warnings.
1166   Add --splitmirrors to lvconvert to split off part of a mirror.
1167   Change background polldaemon's process name to "(lvm2)".
1168   Allow vgremove to remove a VG with PVs missing after a prompt.
1169   Return success in lvconvert --repair --use-policies on failed allocation.
1170   Keep log type consistent when changing mirror image count.
1171   Always set environment variables for an LVM2 device in 11-dm-lvm.rules.
1172   Add activation/udev_rules config option in lvm.conf.
1173   Add consts to text metadata flag structs.
1174   Add macros outfc, outsize, outhint and function out_text_with_comment.
1175   Reimplement report FIELD macro using offsetof instead of static structs.
1176   Fix fsadm man page typo (fsdam).
1177   Rename mirror_device_fault_policy to mirror_image_fault policy.
1178   Remove empty PV devices if lvconvert --repair is using defined policies.
1179   Use fixed buffer to prevent stack overflow in persistent filter dump.
1180   Use extended status of new kernel snapshot target 1.8.0 to detect when empty.
1181   Insert stack macros in suspend_lv, resume_lv & (de)activate_lv callers.
1182   Add --poll flag to vgchange and lvchange to control background daemon launch.
1183   Propagate metadata commit and revert notifications to other cluster nodes.
1184   Use proper mask for VG lock mode in clvmd.
1185   Allow precommitted metadata to be dropped from lvmcache.
1186   Move processing of VG locks to separate function in clvmd.
1187   Properly decode all flags in clvmd messages including VG locks.
1188   Properly handle precommitted cache flag when only committed metadata present.
1189   Resume renamed volumes in reverse order to preserve memlock pairing.
1190   Drop cached metadata after device was auto-repaired and removed from VG.
1191   Clear MISSING_PV flag if PV reappeared and is empty.
1192   Fix removal of multiple devices from a mirror.
1193   Also clean up PVs flagged as missing in vgreduce --removemissing --force.
1194   Introduce INTERNAL_ERROR macro for error messages and use throughout.
1195   Remove superfluous returns from void functions.
1196   Destroy allocated mempool in _vg_read_orphans() error path.
1197   Fix some pvresize and toollib error paths with missing VG releases/unlocks.
1198   Explicitly call suspend for temporary mirror layer.
1199   Allow use of precommitted metadata when a PV is missing.
1200   Add memlock information to do_lock_lv debug output.
1201   Always bypass calls to remote cluster nodes for non-clustered VGs.
1202   Permit implicit cluster lock conversion in pre/post callbacks on local node.
1203   Permit implicit cluster lock conversion to the lock mode already held.
1204   Fix lock flag masking in clvmd so intended code paths get invoked.
1205   Replace magic masks in cluster locking code by defined masks.
1206   Remove newly-created mirror log from metadata if initial deactivation fails.
1207   Correct activated or deactivated text in vgchange summary message.
1208   Improve pvmove error message when all source LVs are skipped.
1209   Fix memlock imbalance in lv_suspend if already suspended.
1210   Fix pvmove test mode not to poll (and fail).
1211   Fix vgcreate error message if VG already exists.
1212   Fix tools to use log_error when aborted due to user response to prompt.
1213   Fix ignored readahead setting in lvcreate --readahead.
1214   Fix clvmd memory leak in lv_info_by_lvid by calling release_vg.
1215   If aborting due to internal error, always send that message to stderr.
1216   Add global/abort_on_internal_errors to lvm.conf to assist testing.
1217   Fix test Makefiles when builddir and srcdir differ.
1218   Impose limit of 8 mirror images to match the in-kernel kcopyd restriction.
1219   Use locking_type 3 (compiled in) for lvmconf --enable-cluster.
1220   Remove list.c and list.h with no-longer-used dm_list macros and functions.
1221   Log failure type and recognise type 'F' (flush) in dmeventd mirror plugin.
1222   Extend internal PV/VG/LV/segment status variables from 32-bit to 64-bit.
1223
1224 Version 2.02.56 - 24th November 2009
1225 ====================================
1226   Add missing vg_release to pvs and pvdisplay to fix memory leak.
1227   Do not try to unlock VG which is not locked in _process_one_vg.
1228   Move is_long_lived persistent_filter_dump to happen after every full scan.
1229   Refresh device filters before full device rescan in lvmcache.
1230   Return error status if vgchange fails to activate some volume.
1231   Fix suspend/resume lock type test causing unbalanced memory locking.
1232   Revert vg_read_internal change as clvmd was not ready for vg_read. (2.02.55)
1233
1234 Version 2.02.55 - 19th November 2009
1235 ====================================
1236   Fix deadlock when changing mirrors due to unpaired memlock refcount changes.
1237   Use separate memlock counter for dmeventd handlers to permit device scanning.
1238   Directly restrict vgchange to activating visible LVs.
1239   Fix pvmove region_size overflow for very large PVs.
1240   Fix lvcreate and lvresize %PVS argument always to use sensible total size.
1241   Tidy some uses of arg_count and introduce arg_is_set.
1242   Export outnl and indent functions for modules.
1243   Flush stdout after yes/no prompt.
1244   Update vgsplit and vgcreate to use vg_set_clustered.
1245   Add vg_mda_count and vg_set_clustered library functions.
1246   Add more vgcreate and vgsplit nightly tests.
1247   Insert some missing stack macros into activation code.
1248   Recognise DRBD devices and handle them like md devices.
1249
1250 Version 2.02.54 - 26th October 2009
1251 ===================================
1252   Update lvcreate/lvconvert man pages to explain PhysicalVolume parameter.
1253   Document --all option in man pages, cleanup {pv|vg|lv}{s|display} man pages.
1254   Permit snapshots of mirrors.
1255   Cleanup mimagetmp LV if allocation fails for new lvconvert mimage.
1256   Fix clvmd segfault when refresh_toolcontext fails.
1257   Remember to clear 'global lock held during cache refresh' state after use.
1258   Use udev flags support in LVM and apply various fixes to udev rules.
1259   Delay announcing mirror monitoring to syslog until initialisation succeeded.
1260   Handle metadata with unknown segment types more gracefully.
1261   Set default owner and group to null.
1262   Add dmeventd.static to the build.
1263   Disable realtime support code by default.
1264   Make clvmd return 0 on success rather than 1.
1265   Add --pvmetadatacopies for pvcreate, vgcreate, vgextend, vgconvert.
1266   Add implict pvcreate support to vgcreate and vgextend.
1267   Correct example.conf to indicate that lvm2 not lvm1 is the default format.
1268   Remove an unused stray LVM1_SUPPORT ifdef.
1269   Only include selinux libs in libdevmapper.pc when selinux build enabled.
1270   Allow for a build directory separate from the source.
1271   Update distclean target for rename clogd to cmirrord. (2.02.52)
1272   Only do lock conversions in clvmd if we are explicitly asked for one.
1273   Introduce percent_range_t and centralise snapshot full/mirror in-sync checks.
1274   Factor out poll_mirror_progress and introduce progress_t.
1275   Distinguish between powers of 1000 and powers of 1024 in unit suffixes.
1276   Restart lvconverts in vgchange by sharing lv_spawn_background_polling.
1277   Generalise polldaemon code by changing mirror-specific variable names.
1278   Don't attempt to deactivate an LV if any of its snapshots are in use.
1279   Return error if lv_deactivate fails to remove device from kernel.
1280   Provide alternative implementation of obsolete siginterrupt().
1281   Consolidate LV allocation into alloc_lv().
1282   Treat input units of both 's' and 'S' as 512-byte sectors.  (2.02.49)
1283   Use standard output units for 'PE Size' and 'Stripe size' in pv/lvdisplay.
1284   Add configure --enable-units-compat to set si_unit_consistency off by default.
1285   Add global/si_unit_consistency to enable cleaned-up use of units in output.
1286
1287 Version 2.02.53 - 25th September 2009
1288 =====================================
1289   Create any directories in /dev with DM_DEV_DIR_UMASK (022).
1290   Enable dmeventd monitoring section of config file by default.
1291   Update lvm2 monitoring script to lvm2_monitoring_init_red_hat.in.
1292   Fix lvm2app test to run under test/api subdirectory only when configured.
1293   Add vg_is_resizeable() and cleanup reference to VG_RESIZEABLE.
1294
1295 Version 2.02.52 - 15th September 2009
1296 =====================================
1297   Update _process_one_vg to cleanup properly after vg_read_error.
1298   Add lots of missing stack debug messages to tools.
1299   Make readonly locking available as locking type 4.
1300   Fix readonly locking to permit writeable global locks (for vgscan). (2.02.49)
1301   Add DM_UDEV_RULES_VSN environment variable to udev rules.
1302   Update vgsplit, vgmerge, and vgrename to obey new vgname ordering rules.
1303   Make lvm2app pv_t, lv_t, vg_t handle definitions consistent with lvm_t.
1304   Enforce an alphabetical lock ordering on vgname locking.
1305   Prioritise write locks over read locks by default for file locking.
1306   Add local lock files with suffix ':aux' to serialise locking requests.
1307   Fix global locking in PV reporting commands (2.02.49).
1308   Fix pvcreate string termination in duplicate uuid warning message.
1309   Don't loop reading sysfs with pvcreate on a non-blkext partition (2.02.51).
1310   Fix vgcfgrestore error paths when locking fails (2.02.49).
1311   Update Makefile distclean target.
1312   Add libudev configuration check.
1313   Make clvmd check corosync to see what cluster interface it should use.
1314   Add clvmd autodetection check and cleanup related configure messages.
1315   Rewrite clvmd configuration code to cope with all combinations of libs.
1316   Added configure --enable-cmirrord to build the cluster mirror log daemon.
1317   Rename clogd to cmirrord.
1318   Make lvchange --refresh only take a read lock on volume group.
1319   Fix race where non-blocking file locks could be granted in error.
1320   Fix vgextend error path - if ORPHAN lock fails, unlock / release vg (2.02.49).
1321   Fix compile warning in clvmd.
1322   Clarify use of PE ranges in lv{convert|create|extend|resize} man pages.
1323   Remove useless _pv_write wrapper.
1324   Add lvm2app.sh to tests conditional upon configure --enable-applib.
1325   Add lvm_vg_is_clustered, lvm_vg_is_exported, and lvm_vg_is_partial.
1326   Update lvm_vg_remove to require lvm_vg_write to commit remove to disk.
1327   Update test/api/test.c to call lvm_vg_create and lvm_vg_remove.
1328
1329 Version 2.02.51 - 6th August 2009
1330 =================================
1331   Fix locking in clvmd (2.02.50).
1332   Add --noudevsync option for relevant LVM tools.
1333   Add activation/udev_sync to lvm.conf.
1334   Only change LV symlinks on ACTIVATE not PRELOAD.
1335   Make lvconvert honour log mirror options combined with downconversion.
1336   Allow LV suspend while --ignorelockingfailure is in force.
1337   Update synopsis in lvconvert manpage to mention --repair.
1338   Set cookies in activation code and wait for udev to complete processing.
1339   Added configure --enable-udev_rules --enable-udev_sync.
1340   Added configure --with-udev-prefix --with-udevdir.
1341   Added udev dir to hold udev rules.
1342   Add devices/data_alignment_detection to lvm.conf.
1343   Add devices/data_alignment_offset_detection to lvm.conf.
1344   Add --dataalignmentoffset to pvcreate to shift start of aligned data area.
1345   Fix _mda_setup() to not check first mda's size before pe_align rounding.
1346   Document -I option of clvmd in the man page.
1347   Fix configure script to handle multiple clvmd selections.
1348   Fix lvm2app.pc installation filename.
1349   Remove pv_t, vg_t & lv_t handles from lib.  Only liblvm uses them.
1350   Rename lvm.h to lvm2app.h for now.
1351
1352 Version 2.02.50 - 28th July 2009
1353 ================================
1354   Change test/api/test.c prompt so it's not confused with the main lvm prompt.
1355   Update liblvm unit tests in test/api to cover latest liblvm changes.
1356   Add unimplemented lvm_lv_resize and lvm_pv_resize skeletons to liblvm.
1357   Add lvm_library_get_version to liblvm.
1358   Add lvm_config_override to liblvm to allow caller to override LVM config.
1359   Add lvm_lv_is_active and lvm_lv_is_suspended to liblvm.
1360   Add lvm_lv_activate and lvm_lv_deactivate to liblvm.
1361   Add lvm_scan, lvm_vg_reduce and lvm_vg_remove_lv to liblvm.
1362   Add functions to get numeric properties to liblvm.
1363   Add lvm_{pv|vg|lv}_get_{name|uuid} to liblvm.
1364   Add lvm_vg_list_pvs and lvm_vg_list_lvs to liblvm.
1365   Add lvm_vg_open and lvm_vg_create_lv_linear to liblvm.
1366   Add lvm_list_vg_names/uuids to liblvm.
1367   Add lvm_errno and lvm_errmsg to liblvm to obtain failure information.
1368   Rename lvm_create/destroy to lvm_init/quit.
1369   Rename lvm_reload_config to lvm_config_reload.
1370   Refactor _override_settings to use new override_config_tree_from_string.
1371   Add vg_reduce to metadata.c and metadata-exported.h.
1372   Update lvm.h to clarify API behavior and return codes.
1373   Update lvm_vg_extend to do an implicit pvcreate on the device.
1374   Update display.c to use vg_free(vg) instead of duplicating the calculation.
1375   Refactor vg_size, vg_free, and pv_mda_count field calculations for liblvm.
1376   Refactor pvcreate and lvcreate for liblvm.
1377   Add global/wait_for_locks to lvm.conf so blocking for locks can be disabled.
1378   All LV locks are non-blocking so remove LCK_NONBLOCK from separate macros.
1379   Fix race condition with vgcreate and vgextend on same device (2.02.49).
1380   Remove redundant validate_name call from vgreduce.
1381   Remove unused handles lvseg, pvseg inside liblvm/lvm.h.
1382   Add liblvm2app Makefile installation targets.
1383   Add liblvm pkgconfig file.
1384   Use newly-independent LVM_LIBAPI in liblvm soname.  E.g. liblvm2app.so.2.1.
1385   Add an API version number, LVM_LIBAPI, to the VERSION string for liblvm.
1386   Pass a pointer to struct cmd_context to init_multiple_segtypes
1387   Return EINVALID_CMD_LINE not success when invalid VG name format is used.
1388   Remove unnecessary messages after vgcreate/vgsplit refactor (2.02.49).
1389   Add log_errno to set a specific errno and replace log_error in due course.
1390   Change create_toolcontext to still return an object if it fails part-way.
1391   Add EUNCLASSIFIED (-1) as the default LVM errno code.
1392   Store any errno and error messages issued while processing each command.
1393   Use log_error macro consistently throughout in place of log_err.
1394
1395 Version 2.02.49 - 15th July 2009
1396 ================================
1397   Add readonly locking type to replace implementation of --ignorelockingfailure.
1398   Exclude VG_GLOBAL from vg_write_lock_held so scans open devs read-only again.
1399   Add unit test case for liblvm VG create/delete APIs.
1400   Add liblvm APIs to implement creation and deletion of VGs.
1401   Initialize cmd->cmd_line to "liblvm" in new liblvm library.
1402   Place handles to liblvm objects for pv, vg, lv, lvseg, pvseg inside lvm.h.
1403   Refactor vgsplit and vgextend to remove READ_REQUIRE_RESIZEABLE flag.
1404   Use _exit() not exit() after forking to avoid flushing libc buffers twice.
1405   Add cast to log_info arg in _find_labeller to avoid Sparc64 warning.
1406   Make cmd->cmd_line const.
1407   Fix dev name mismatch in vgcreate man page example.
1408   Refactor vg_remove_single for use in liblvm.
1409   Make all tools use consistent lock ordering obtaining VG_ORPHAN lock second.
1410   Check md devices for a partition table during device scan.
1411   Add extended device (blkext) and md partition (mdp) types to filters.
1412   Make text metadata read errors for segment areas more precise.
1413   Fix text segment metadata read errors to mention correct segment name.
1414   Include segment and LV names in text segment import error messages.
1415   Add parent node to config_node structure.
1416   Update vgsplit and vgcreate to call new vg_create and 'set' functions.
1417   Change vg_create to take minimal parameters, obtain a lock, and return vg_t.
1418   Refactor vgchange extent_size, max_lv, max_pv, and alloc_policy for liblvm.
1419   Update t-vgcreate-usage.sh to test for default vg properties.
1420   Fix memory leak in vgsplit when re-reading the vg.
1421   Make various exit/cleanup paths more robust after lvm init failures.
1422   Use LCK_NONBLOCK implicitly instead of explicit vg_read() flag.
1423   Remove unnecessary locking and existence tests from new vg_read() interface.
1424   Permit several segment types to be registered by a single shared object.
1425   Update the man pages to document size units uniformly.
1426   Allow commandline sizes to be specified in terms of bytes and sectors.
1427   Update 'md_chunk_alignment' to use stripe-width to align PV data area.
1428   Update test/t-inconsistent-metadata.sh to match new vg_read interface.
1429   Add lvmcache_init() to polldaemon initialization.
1430   Convert tools to use new vg_read / vg_read_for_update.
1431   Fix segfault in vg_release when vg->cmd is NULL.
1432
1433 Version 2.02.48 - 30th June 2009
1434 ================================
1435   Abort if automatic metadata correction fails when reading VG to update it.
1436   Explicitly request fallback to default major number in device mapper.
1437   Ignore suspended devices during repair.
1438   Call vgreduce --removemissing automatically to fix missing PVs in dmeventd.
1439   Suggest using lvchange --resync when adding leg to not-yet-synced mirror.
1440   Destroy toolcontext on clvmd exit to avoid memory pool leaks.
1441   Fix lvconvert not to poll mirror if no conversion in progress.
1442   Fix memory leaks in toolcontext error path.
1443   Reinstate partial activation support in clustered mode. (2.02.40)
1444   Allow metadata correction even when PVs are missing.
1445   Use 'lvm lvresize' instead of 'lvresize' in fsadm.
1446   Do not use '-n' realine option in fsadm for busybox compatiblity.
1447   Add vg_lock_newname() library function for vgrename, vgsplit and vgcreate.
1448   Round up requested readahead to at least one page and print warning.
1449   Try to repair vg before actual vgremove when force flag provided.
1450   Fix possible double release of VG after recovery.
1451   Add parameter to process_each_vg specifying what to do with inconsistent VG.
1452   Unify error messages when processing inconsistent volume group.
1453   Use lvconvert --repair instead of vgreduce in mirror dmeventd DSO.
1454   Introduce lvconvert --use_policies (repair policy according to lvm.conf).
1455   Update clvmd-corosync to match new corosync API.
1456   Fix lib Makefile to include any shared libraries in default target.
1457   Fix rename of active snapshot with virtual origin.
1458   Fix convert polling to ignore LV with different UUID.
1459   Cache underlying device readahead only before activation calls.
1460   Fix segfault when calculating readahead on missing device in vgreduce.
1461   Remove verbose 'visited' messages.
1462   Handle multi-extent mirror log allocation when smallest PV has only 1 extent.
1463   Add LSB standard headers and functions (incl. reload) to clvmd initscript.
1464   When creating new LV, double-check that name is not already in use.
1465   Remove /dev/vgname/lvname symlink automatically if LV is no longer visible.
1466   Rename internal vorigin LV to match visible LV.
1467   Suppress 'removed' messages displayed when internal LVs are removed.
1468   Fix lvchange -a and -p for sparse LVs.
1469   Fix lvcreate --virtualsize to activate the new device immediately.
1470   Make --snapshot optional with lvcreate --virtualsize.
1471   Generalise --virtualoriginsize to --virtualsize.
1472   Skip virtual origins in process_each_lv_in_vg() without --all.
1473   Fix counting of virtual origin LVs in vg_validate.
1474   Attempt to load dm-zero module if zero target needed but not present.
1475
1476 Version 2.02.47 - 22nd May 2009
1477 ===============================
1478   Rename liblvm.so to liblvm2app.so and use configure --enable-applib.
1479   Reinstate version in liblvm2cmd.so soname. (2.02.44)
1480
1481 Version 2.02.46 - 21st May 2009
1482 ===============================
1483   Inherit readahead setting from underlying devices during activation.
1484   Detect LVs active on remote nodes by querying locks if supported.
1485   Enable online resizing of mirrors.
1486   Use suspend with flush when device size was changed during table preload.
1487   Implement query_resource_fn for cluster_locking.
1488   Support query_resource_fn in locking modules.
1489   Introduce CLVMD_CMD_LOCK_QUERY command for clvmd.
1490   Fix pvmove to revert operation if temporary mirror creation fails.
1491   Fix metadata export for VG with missing PVs.
1492   Add vgimportclone and install it and the man page by default.
1493   Force max_lv restriction only for newly created LV.
1494   Remove unneeded import parameter from lv_create_empty.
1495   Merge lv_is_displayable and lv_is_visible functions.
1496   Introduce lv_set_visible & lv_set_hidden functions.
1497   Fix lv_is_visible to handle virtual origin.
1498   Introduce link_lv_to_vg and unlink_lv_from_vg functions.
1499   Remove lv_count from VG and use counter function instead.
1500   Fix snapshot segment import to not use duplicate segments & replace.
1501   Do not query nonexistent devices for readahead.
1502   Remove NON_BLOCKING lock flag from tools and set a policy to auto-set.
1503   Remove snapshot_count from VG and use function instead.
1504   Fix first_seg() call for empty segment list.
1505   Add install_lvm2 makefile target to install only the LVM2 components.
1506   Reject missing PVs from allocation in toollib.
1507   Fix PV datalignment for values starting prior to MDA area. (2.02.45)
1508   Add sparse devices: lvcreate -s --virtualoriginsize (hidden zero origin).
1509   Fix minimum width of devices column in reports.
1510   Add lvs origin_size field.
1511   Fix linux configure --enable-debug to exclude -O2.
1512   Implement lvconvert --repair for repairing partially-failed mirrors.
1513   Fix vgreduce --removemissing failure exit code.
1514   Fix remote metadata backup for clvmd.
1515   Introduce unlock_and_release_vg macro.
1516   Introduce vg_release() to be called to free every struct volume_group.
1517   Alloc PV internal structure from VG mempool if possible.
1518   Fix metadata backup to run after vg_commit always.
1519   Tidy clvmd volume lock cache functions.
1520   Fix pvs report for orphan PVs when segment attributes are requested.
1521   Fix pvs -a output to not read volume groups from non-PV devices.
1522   Add MMC (mmcblk) device type to filters.
1523   Introduce memory pools per volume group (to reduce memory for large VGs).
1524   Use copy of PV structure when manipulating global PV lists.
1525   Always return exit error status when locking of volume group fails.
1526   Fix mirror log convert validation question.
1527   Avoid referencing files from DESTDIR during build process.
1528   Avoid creating some static libraries unless configured --enable-static_link.
1529   Enable use of cached metadata for pvs and pvdisplay commands.
1530   Add missing 'device-mapper' internal subdir build dependency.
1531   Fix memory leak in mirror allocation code.
1532   Save and restore the previous logging level when log level is changed.
1533   Fix error message when archive initialization fails.
1534   Make sure clvmd-corosync releases the lockspace when it exits.
1535   Fix segfault for vgcfgrestore on VG with missing PVs.
1536   Block SIGTERM & SIGINT in clvmd subthreads.
1537   Detect and conditionally wipe swapspace signatures in pvcreate.
1538   Fix maximal volume count check for snapshots if max_lv set for volume group.
1539   Fix lvcreate to remove unused cow volume if the snapshot creation fails.
1540   Fix error messages when PV uuid or pe_start reading fails.
1541   Build new liblvm application-level library.
1542   Rename liblvm.a to liblvm-internal.a.
1543   Flush memory pool and fix locking in clvmd refresh and backup command.
1544   Fix unlocks in clvmd-corosync. (2.02.45)
1545   Fix error message when adding metadata directory to internal list fails.
1546   Fix size and error message of memory allocation at backup initialization.
1547   Remove old metadata backup file after renaming VG.
1548   Restore log_suppress state when metadata backup file is up-to-date.
1549
1550 Version 2.02.45 - 3rd March 2009
1551 ================================
1552   Avoid scanning empty metadata areas for VG names.
1553   Attempt proper clean up in child before executing new binary in exec_cmd().
1554   Do not scan devices if reporting only attributes from PV label.
1555   Use pkgconfig to obtain corosync library details during configuration.
1556   Fix error returns in clvmd-corosync interface to DLM.
1557   Add --refresh to vgchange and vgmknodes man pages.
1558   Pass --test from lvresize to fsadm as --dry-run.
1559   Supply argv[] list to exec_cmd() to allow for variable number of parameters.
1560   Prevent fsadm from checking mounted filesystems.
1561   No longer treats any other key as 'no' when prompting in fsadm.
1562   Tidy fsadm command line processing.
1563   Add lib/lvm.h and lib/lvm_base.c for the new library interface.
1564   Move tools/version.h to lib/misc/lvm-version.h.
1565   Split LVM_VERSION into MAJOR, MINOR, PATCHLEVEL, RELEASE and RELEASE_DATE.
1566   Add system_dir parameter to create_toolcontext().
1567   Add --dataalignment to pvcreate to specify alignment of data area.
1568   Exclude LCK_CACHE locks from _vg_lock_count, fixing interrupt unblocking.
1569   Provide da and mda locations in debug message when writing text format label.
1570   Mention the restriction on file descriptors at invocation on the lvm man page.
1571   Index cached vgmetadata by vgid not vgname to cope with duplicate vgnames.
1572   No longer require kernel and metadata major numbers to match.
1573   Add a fully-functional get_cluster_name() to clvmd corosync interface.
1574   Remove duplicate cpg_initialize from clvmd startup.
1575   Add option to /etc/sysconfig/cluster to select cluster type for clvmd.
1576   Allow clvmd to start up if its lockspace already exists.
1577   Separate PV label attributes which do not need parse metadata when reporting.
1578   Remove external dependency on the 'cut' command from fsadm.
1579   Fix pvs segfault when pv mda attributes requested for not available PV.
1580   Add fsadm support for reszing ext4 filesysystems.
1581   Move locking_type reading inside init_locking().
1582   Rename get_vgs() to get_vgnames() and clarify related error messages.
1583   Allow clvmd to be built with all cluster managers & select one on cmdline.
1584   Mention --with-clvmd=corosync in ./configure.
1585   Replace internal vg_check_status() implementation.
1586   Rename vg_read() to vg_read_internal().
1587
1588 Version 2.02.44 - 26th January 2009
1589 ===================================
1590   Fix --enable-static_link after the recent repository changes.
1591   Add corosync/DLM cluster interface to clvmd.
1592   Add --nameprefixes, --unquoted, --rows to pvs, vgs, lvs man pages.
1593   Fix lvresize size conversion for fsadm when block size is not 1K.
1594   Fix pvs segfault when run with orphan PV and some VG fields.
1595   Display a 'dev_size' of zero for missing devices in reports.
1596   Add pv_mda_size to pvs and vg_mda_size to vgs.
1597   Fix lvmdump /sys listing to include virtual devices directory.
1598   Add "--refresh" functionality to vgchange and vgmknodes.
1599   Avoid exceeding LV size when wiping device.
1600   Calculate mirror log size instead of using 1 extent.
1601   Ensure requested device number is available before activating with it.
1602   Fix incorrect exit status from 'help <command>'.
1603   Fix vgrename using UUID if there are VGs with identical names.
1604   Fix segfault when invalid field given in reporting commands.
1605   Move is_static from cmd to global is_static().
1606   Refactor init_lvm() for lvmcmdline and clvmd.
1607   Add liblvm interactive test infrastructure to build.
1608   Add skeleton lvm2.h file in preparation for a shared library interface.
1609   Use better random seed value in temp file creation.
1610   Add read_urandom to read /dev/urandom. Use in uuid calculation.
1611   Use displayable_lvs_in_vg and lv_is_displayable for consistency throughout.
1612   Fix race in vgcreate that would result in second caller overwriting first.
1613   Fix uninitialised lv_count in vgdisplay -c.
1614   Don't skip updating pvid hash when lvmcache_info struct got swapped.
1615   Add tinfo to termcap search path for pld-linux.
1616   Fix startup race in clvmd.
1617   Generate Red Hat clvmd startup script at config time with correct paths.
1618   Fix clvmd & dmeventd builds after tree restructuring.
1619   Cope with snapshot dependencies when removing a whole VG with lvremove.
1620   Make man pages and tool help text consistent using | for alternative options.
1621
1622 Version 2.02.43 - 10th November 2008
1623 ====================================
1624   Merge device-mapper into the lvm2 tree.
1625   Correct prototype for --permission on lvchange and lvcreate man pages.
1626   Exit with non-zero status from vgdisplay if couldn't show any requested VG.
1627   Move list.c into libdevmapper and rename functions.
1628   Rename a couple of variables that matched function names.
1629   Use simplified x.y.z version number in libdevmapper.pc.
1630   Remove ancient debian directory.
1631   Split out lvm-logging.h from log.h and lvm-globals.[ch] from log.[ch].
1632
1633 Version 2.02.42 - 26th October 2008
1634 ===================================
1635   Accept locking fallback_to_* options in the global section as documented.
1636   Fix temp table activation in mirror conversions not to happen in other cmds.
1637   Fix temp table in mirror conversions to use always-present error not zero.
1638
1639 Version 2.02.41 - 17th October 2008
1640 ===================================
1641   Use temp table to set device size when converting mirrors.
1642   In resume_mirror_images replace activate_lv with resume_lv as workaround.
1643   Avoid overwriting in-use on-disk text metadata by forgetting MDA_HEADER_SIZE.
1644   Fix snapshot monitoring library to not cancel monitoring invalid snapshot.
1645   Generate man pages from templates and include version.
1646   Add usrlibdir and usrsbindir to configure.
1647   Fix conversion of md chunk size into sectors.
1648   Free text metadata buffer after a failure writing it.
1649   Fix misleading error message when there are no allocatable extents in VG.
1650   Fix handling of PVs which reappeared with old metadata version.
1651   Fix mirror DSO to call vgreduce with proper parameters.
1652   Fix validation of --minor and --major in lvcreate to require -My always.
1653   Fix release: clvmd build, vgreduce consolidate & tests, /dev/ioerror warning.
1654
1655 Version 2.02.40 - 19th September 2008
1656 =====================================
1657   Allow lvremove to remove LVs from VGs with missing PVs.
1658   In VG with PVs missing, by default allow activation of LVs that are complete.
1659   Track PARTIAL_LV and MISSING_PV flags internally.
1660   Require --force with --removemissing in vgreduce to remove partial LVs.
1661   No longer write out PARTIAL flag into metadata backups.
1662   Treat new default activation/missing_stripe_filler "error" as an error target.
1663   Remove internal partial_mode.
1664   Add devices/md_chunk_alignment to lvm.conf.
1665   Pass struct physical_volume to pe_align and adjust for md chunk size.
1666   Store sysfs location in struct cmd_context.
1667   Avoid shuffling remaining mirror images when removing one, retaining primary.
1668   Add missing LV error target activation in _remove_mirror_images.
1669   Prevent resizing an LV while lvconvert is using it.
1670   Avoid repeatedly wiping cache while VG_GLOBAL is held in vgscan & pvscan.
1671   Fix pvresize to not allow resize if PV has two metadata areas.
1672   Fix setting of volume limit count if converting to lvm1 format.
1673   Fix vgconvert logical volume id metadata validation.
1674   Fix lvmdump metadata gather option (-m) to work correctly.
1675   Fix allocation bug in text metadata format write error path.
1676   Fix vgcfgbackup to properly check filename if template is used.
1677   configure aborts if lcov or genhtml are missing with --enable-profiling
1678   vgremove tries to remove lv snapshot first.
1679   Added function lv_remove_with_dependencies().
1680   Improve file descriptor leak detection to display likely culprit and filename.
1681   Change clustered mirror kernel module name from cmirror to dm-log-clustered.
1682   Avoid looping forever in _pv_analyze_mda_raw used by pvck.
1683   Change lvchange exit status to indicate if any part of the operation failed.
1684   Fix pvchange and pvremove to handle PVs without mdas.
1685   Refactor _text_pv_read and always return mda list if requested.
1686   Fix configure to work w/o readline unless --enable-readline used. (2.02.39)
1687   Remove is_lvm_partition template which has not yet been coded.
1688   Refactor pvcreate to separate parameter parsing from validation logic.
1689   Check for label_write() failure in _text_pv_write().
1690   Add pvcreate tests and update vgsplit tests to handle lvm1 and lvm2 metadata.
1691   Fix pvchange -M1 -u to preserve existing extent locations when there's a VG.
1692   Cease recognising snapshot-in-use percentages returned by early devt kernels.
1693   Add backward-compatible flags field to on-disk format_text metadata.
1694   Fix dmeventd monitoring libraries to link against liblvm2cmd again. (2.02.39)
1695
1696 Version 2.02.39 - 27th June 2008
1697 ================================
1698   Enable readline by default if available.
1699   Update autoconf to 2008-01-16.
1700   Add $DISTCLEAN_DIRS to make.tmpl.in.
1701   Create coverage reports with --enable-profiling and make lcov or lcov-dated.
1702   Fix up cache for PVs without mdas after consistent VG metadata is processed.
1703   Update validation of safe mirror log type conversions in lvconvert.
1704   Fix lvconvert to disallow snapshot and mirror combinations.
1705   Fix reporting of LV fields alongside unallocated PV segments.
1706   Add --unquoted and --rows to reporting tools.
1707   Add and use uninitialized_var() macro to suppress invalid compiler warnings.
1708   Introduce enum for md minor sb version to suppress compiler warning.
1709   Avoid undefined return value after _memlock manipulation in lvm2_run.
1710   Avoid link failure if configured without --enable-cmdlib or --enable-readline.
1711   Make clvmd return at once if other nodes down in a gulm or openais cluster.
1712   Fix and improve readahead 'auto' calculation for stripe_size.
1713   Fix lvchange output for -r auto setting if auto is already set.
1714   Add test case for readahead.
1715   Avoid ambiguous use of identifier error_message_produced.
1716   Begin syncing configure.in for merge/unification with device-mapper.
1717   Fix add_mirror_images not to dereference uninitialized log_lv upon failure.
1718   Don't call openlog for every debug line output by clvmd.
1719   Add --force to lvextend and lvresize.
1720   Fix vgchange not to activate component mirror volumes directly.
1721   Fix test directory clean up in make distclean.
1722
1723 Version 2.02.38 - 11th June 2008
1724 ================================
1725   Fix tracking of validity of PVs with no mdas in lvmcache.
1726   Fix return values for reporting commands when run with no PVs, LVs, or VGs.
1727   Add omitted unlock_vg() call when sigint_caught() during vg processing.
1728   Fix free_count when reading pool metadata.
1729   Fix segfault when using pvcreate on a device containing pool metadata.
1730   Fix segfault after _free_vginfo by remembering to remove vginfo from list.
1731   Tweak detection of invalid fid after changes to PVs in VG in _vg_read.
1732   Revert assuming precommitted metadata is live when activating (unnecessary).
1733   Drop cached metadata for disappearing VG in vgmerge.
1734   In script-processing mode, stop if any command fails.
1735   Warn if command exits with non-zero status code without a prior log_error.
1736   Check lv_count in vg_validate.
1737   Add --nameprefixes to reporting tools for field name prefix output format.
1738
1739 Version 2.02.37 - 6th June 2008
1740 ===============================
1741   Make clvmd-cman use a hash rather than an array for node updown info.
1742   Correct config file line numbers in messages when parsing comments.
1743   Drop cached metadata when renaming a VG.
1744   Allow for vginfo changing during _vg_read.
1745   Decode numbers in clvmd debugging output.
1746   Add missing deactivation after activation failure in lvcreate -Zy.
1747   When activating, if precommitted metadata is still cached, assume it's live.
1748   When removing LV symlinks, skip any where the VG name is not determined.
1749   Drop metadata cache if update fails in vg_revert or vg_commit.
1750   Avoid spurious duplicate VG messages referring to VGs that are gone.
1751   Drop dev_name_confirmed error message to debug level.
1752   Fix setpriority error message to signed int.
1753   Temporarily disable dmeventd mirror monitoring during lvchange --resync.
1754   Refactor some vginfo manipulation code.
1755   Add assertions to trap deprecated P_ and V_ lock usage.
1756   Add missing mutex around clvmd lvmcache_drop_metadata library call.
1757   Fix uninitialised mutex in clvmd if all daemons are not running at startup.
1758   Avoid using DLM locks with LCK_CACHE type P_ lock requests.
1759   When asked to drop cached committed VG metadata, invalidate cached PV labels.
1760   Drop metadata cache before writing precommitted metadata instead of after.
1761   Don't touch /dev in vgrename if activation is disabled.
1762
1763 Version 2.02.36 - 29th April 2008
1764 =================================
1765   Fix fsadm.sh to work with older blockdev, blkid & readlink binaries.
1766   Fix lvresize to pass new size to fsadm when extending device.
1767   Remove unused struct in clvmd-openais, and use correct node count.
1768   Fix nodes list in clvmd-openais, and allow for broadcast messages.
1769   Exclude VG_GLOBAL from internal concurrent VG lock counter.
1770   Fix vgsplit internal counting of snapshot LVs.
1771   Fix vgmerge snapshot_count when source VG contains snapshots.
1772   Simplify clvmd-openais by using non-async saLckResourceLock.
1773   Fix internal LV counter when a snapshot is removed.
1774   Fix metadata corruption writing lvm1-formatted metadata with snapshots.
1775   Fix lvconvert -m0 allocatable space check.
1776
1777 Version 2.02.35 - 15th April 2008
1778 =================================
1779   Drop cached VG metadata before and after committing changes to it.
1780   Rename P_global to P_#global.
1781   Don't attempt remote metadata backups of non-clustered VGs. (2.02.29)
1782   Don't store fid in VG metadata cache to avoid clvmd segfault. (2.02.34)
1783   Update vgsplit tests to verify loosening of active LV restriction.
1784   Update vgsplit to only restrict split with active LVs involved in split.
1785   Add lv_is_active() to determine whether an lv is active.
1786
1787 Version 2.02.34 - 10th April 2008
1788 =================================
1789   Improve preferred_names lvm.conf example.
1790   Fix vgdisplay 'Cur LV' field to match lvdisplay output.
1791   Fix lv_count report field to exclude hidden LVs.
1792   Add vg_is_clustered() helper function.
1793   Fix vgsplit to only move hidden 'snapshotN' LVs when necessary.
1794   Update vgsplit tests for lvnames on the cmdline.
1795   Update vgsplit man page to reflect lvnames on the cmdline.
1796   Update vgsplit to take "-n LogicalVolumeName" on the cmdline.
1797   Use clustered mirror log with pvmove in clustered VGs, if available.
1798   Fix some pvmove error status codes.
1799   Fix vgsplit error paths to release vg_to lock.
1800   Indicate whether or not VG is clustered in vgcreate log message.
1801   Mention default --clustered setting in vgcreate man page.
1802   Add config file overrides to clvmd when it reads the active LVs list.
1803   Fix vgreduce to use vg_split_mdas to check sufficient mdas remain.
1804   Add (empty) orphan VGs to lvmcache during initialisation.
1805   Fix orphan VG name used for format_pool.
1806   Create a fid for internal orphan VGs.
1807   Update lvmcache VG lock state for all locking types now.
1808   Fix output if overriding command_names on cmdline.
1809   Add detection of clustered mirror log capability.
1810   Add check to vg_commit() ensuring VG lock held before writing new VG metadata.
1811   Add validation of LV name to pvmove -n.
1812   Make clvmd refresh the context correctly when lvm.conf is updated.
1813   Add some basic internal VG lock validation.
1814   Add per-command flags to control which commands use the VG metadata cache.
1815   Fix vgsplit locking of new VG (2.02.30).
1816   Avoid erroneous vgsplit error message for new VG. (2.02.29)
1817   Suppress duplicate message when lvresize fails because of invalid vgname.
1818   Cache VG metadata internally while VG lock is held.
1819   Fix redundant lvresize message if vg doesn't exist.
1820   Fix another allocation bug with clvmd and large node IDs.
1821   Add find_lv_in_lv_list() and find_pv_in_pv_list().
1822   Fix uninitialised variable in clvmd that could cause odd hangs.
1823   Add vgmerge tests.
1824   Add pvseg_is_allocated() for identifying a PV segment allocated to a LV.
1825   Add list_move() for moving elements from one list to another.
1826   Add 'is_reserved_lvname()' for identifying hidden LVs.
1827   Correct command name in lvmdiskscan man page.
1828   clvmd no longer crashes if it sees nodeids over 50.
1829   Fix potential deadlock in clvmd thread handling.
1830   Refactor text format initialisation into _init_text_import.
1831   Escape double quotes and backslashes in external metadata and config data.
1832   Add functions for escaping double quotes in strings.
1833   Rename count_chars_len to count_chars.
1834   Use return_0 in a couple more places.
1835   Correct a function name typo in _line_append error message.
1836   Include limits.h in clvmd so it compiles with newer headers.
1837   Add VirtIO disks (virtblk) to filters.
1838   Fix resetting of MIRROR_IMAGE and VISIBLE_LV after removal of LV. (2.02.30)
1839   Fix remove_layer_from_lv to empty the LV before removing it. (2.02.30)
1840   Add missing no-longer-used segs_using_this_lv test to check_lv_segments.
1841   Remove redundant non-NULL tests before calling free in clvmd.c.
1842   Avoid a compiler warning: make is_orphan's parameter const.
1843   Fix lvconvert detection of mirror conversion in progress. (2.02.30)
1844   Avoid automatic lvconvert polldaemon invocation when -R specified. (2.02.30)
1845   Fix 'pvs -a' to detect VGs of PVs without metadata areas.
1846   Divide up internal orphan volume group by format type.
1847   Update usage message for clvmd.
1848   Fix clvmd man page not to print <br> and clarified debug options.
1849   Fix lvresize to support /dev/mapper prefix in the LV name.
1850   Fix unfilled parameter passed to fsadm from lvresize.
1851   Update fsadm to call lvresize if the partition size differs (with option -l).
1852   Fix fsadm to support VG/LV names.
1853
1854 Version 2.02.33 - 31st January 2008
1855 ===================================
1856   Fix mirror log name construction during lvconvert. (2.02.30)
1857   Make monitor_dev_for_events recurse through the stack of LVs.
1858   Clean up some more compiler warnings.
1859   Some whitespace tidy-ups.
1860   Use stack return macros throughout.
1861   Rely upon internally-cached PV labels while corresponding VG lock is held.
1862
1863 Version 2.02.32 - 29th January 2008
1864 ===================================
1865   Fix two check_lv_segments error messages to show whole segment.
1866   Refactor mirror log attachment code.
1867   Fix internal metadata corruption in lvchange --resync. (2.02.30)
1868   Fix new parameter validation in vgsplit and test mode. (2.02.30)
1869   Remove redundant cnxman-socket.h file from clvmd directory.
1870   Fix pvs, vgs, lvs error exit status on some error paths.
1871
1872 Version 2.02.31 - 19th January 2008
1873 ===================================
1874   Fix lvcreate --nosync not to wait for non-happening sync. (2.02.30)
1875   Add very_verbose lvconvert messages.
1876   Avoid readahead error message with default setting of lvcreate -M1. (2.02.29)
1877
1878 Version 2.02.30 - 17th January 2008
1879 ===================================
1880   Set default readahead to twice maximium stripe size.
1881   Reinstate VG extent size and stripe size defaults (halved). (2.02.29)
1882   Add lists of stacked LV segments using each LV to the internal metadata.
1883   Change vgsplit -l (for unimplemented --list) into --maxlogicalvolumes.
1884   Fix process_all_pvs to detect non-orphans with no MDAs correctly.
1885   Don't use block_on_error with mirror targets version 1.12 and above.
1886   Update vgsplit to accept vgcreate options when new VG is destination.
1887   Update vgsplit to accept existing VG as destination.
1888   lvconvert waits for completion of initial sync by default.
1889   Refactor vgcreate for parameter validation and add tests.
1890   Add new convert_lv field to lvs output.
1891   Print warning when lvm tools are running as non-root.
1892   Add snapshot dmeventd library (enables dmeventd snapshot monitoring).
1893   Prevent pvcreate from overwriting MDA-less PVs belonging to active VGs.
1894   Fix a segfault if using pvs with --all argument. (2.02.29)
1895   Update --uuid argument description in man pages.
1896   Fix vgreduce PV list processing not to process every PV in the VG. (2.02.29)
1897   Extend lvconvert to use polldaemon.
1898   Add support for stacked mirrors.
1899   Major restructuring of pvmove and lvconvert layer manipulation code.
1900   Replace tools/fsadm with scripts/fsadm.sh.
1901   Append fields to report/pvsegs_cols_verbose.
1902   Permit LV segment fields with PV segment reports.
1903   Add seg_start_pe and seg_pe_ranges to reports.
1904
1905 Version 2.02.29 - 5th December 2007
1906 ===================================
1907   Make clvmd backup vg metadata on remote nodes.
1908   Refactor pvmove allocation code.
1909   Decode cluster locking state in log message.
1910   Change file locking state messages from debug to very verbose.
1911   Fix --addtag to drop @ prefix from name.
1912   Stop clvmd going haywire if a pre_function fails.
1913   Convert some vg_reads into vg_lock_and_reads.
1914   Avoid nested vg_reads when processing PVs in VGs and fix associated locking.
1915   Accept sizes with --readahead argument.
1916   Store size arguments as sectors internally.
1917   Attempt to remove incomplete LVs with lvcreate zeroing/activation problems.
1918   Add read_ahead activation code.
1919   Add activation/readahead configuration option and FMT_RESTRICTED_READAHEAD.
1920   Extend readahead arg to accept "auto" and "none".
1921   Add lv_read_ahead and lv_kernel_read_ahead fields to reports and lvdisplay.
1922   Prevent lvconvert -s from using same LV as origin and snapshot.
1923   Fix human-readable output of odd numbers of sectors.
1924   Add pv_mda_free and vg_mda_free fields to reports for raw text format.
1925   Add LVM2 version to 'Generated by' comment in metadata.
1926   Show 'not usable' space when PV is too large for device in pvdisplay.
1927   Ignore and fix up any excessive device size found in metadata.
1928   Fix error message when fixing up PV size in lvm2 metadata (2.02.11).
1929   Fix orphan-related locking in pvdisplay and pvs.
1930   Fix missing VG unlocks in some pvchange error paths.
1931   Add some missing validation of VG names.
1932   Rename validate_vg_name() to validate_new_vg_name().
1933   Change orphan lock to VG_ORPHANS.
1934   Change format1 to use ORPHAN as orphan VG name.
1935   Convert pvchange, pvdisplay, pvscan to use is_orphan()
1936   Add is_orphan_vg() and change all hard-coded checks to use it.
1937   Detect md superblocks version 1.0, 1.1 and 1.2.
1938   Add _alloc_pv() and _free_pv() from _pv_create() code and fix error paths.
1939   Add pv_dev_name() to access PV device name.
1940   Add const attributes to pv accessor functions.
1941   Refactor vg_add_snapshot() and lv_create_empty().
1942   Handle new sysfs subsystem/block/devices directory structure.
1943   Run test with LVM_SYSTEM_DIR pointing to private root and /dev dirs.
1944   Fix a bug in lvm_dump.sh checks for lvm/dmsetup binaries.
1945   Fix underquotations in lvm_dump.sh.
1946   Refactor lvcreate stripe and mirror parameter validation.
1947   Print --help output to stdout, not stderr.
1948   After a cmdline processing error, don't print help text but suggest --help.
1949   Add %PVS extents option to lvresize, lvextend, and lvcreate.
1950   Add 'make check' to run tests in new subdirectory 'test'.
1951   Moved the obsolete test subdirectory to old-tests.
1952   Cope with relative paths in configure --with-dmdir.
1953   Remove no-longer-correct restrictions on PV arg count with stripes/mirrors.
1954   Fix strdup memory leak in str_list_dup().
1955   Link with -lpthread when static SELinux libraries require that.
1956   Detect command line PE values that exceed their 32-bit range.
1957   Include strerror string in dev_open_flags' stat failure message.
1958   Move guts of pvresize into library.
1959   Avoid error when --corelog is provided without --mirrorlog. (2.02.28)
1960   Correct --mirrorlog argument name in man pages (not --log).
1961   Clear MIRROR_NOTSYNCED LV flag when converting from mirror to linear.
1962   Modify lvremove to prompt for removal if LV active on other cluster nodes.
1963   Add '-f' to vgremove to force removal of VG even if LVs exist.
1964
1965 Version 2.02.28 - 24th August 2007
1966 ==================================
1967   Fix clvmd logging so you can get lvm-level debugging out of it.
1968   Introduce VG_GLOBAL lock type for vgscan/pvscan to trigger clvmd -R.
1969   Change locking_flags from int to uint32_t.
1970   Fix clvmd -R, so it fully refreshes the caches.
1971   Change lvconvert_mirrors to use mirror segtype not striped.
1972   Fix lvconvert_mirrors detection of number of existing mirrors.
1973   Clean up numerous compiler warnings that appeared in recent releases.
1974   Remove several unused parameters from _allocate().
1975   Only permit --force, --verbose and --debug arguments to be repeated.
1976   Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1.
1977   Move guts of vgremove and lvremove into library, including yes_no_prompt.
1978   Allow clvmd debug to be turned on in a running daemon using clvmd -d [-C].
1979   Update to use autoconf 2.61, while still supporting 2.57.
1980   Add more cluster info to lvmdump.
1981   Add further const attributes throughout.
1982   Add support for renaming mirrored LVs.
1983   Factor out core of lvrename() to library function.
1984   Add --mirrorlog argument to specify log type for mirrors.
1985   Don't attempt to monitor devices if their creation failed in _lv_activate.
1986   Don't leak a file descriptor in fcntl_lock_file() when fcntl fails.
1987   Replace create_dir with dm_create_dir.
1988   Detect stream write failure reliably with lvm_fclose using dm_fclose.
1989   Fix clvmd if compiled with gulm support. (2.02.26)
1990   Fix lvdisplay man page to say LV size is reported in sectors, not KB.
1991   Add vg_lock_and_read() external library function.
1992   Fix loading of persistent cache if cache_dir is used. (2.02.23)
1993   Reduce _compare_paths lstat error message from log_error to log_very_verbose.
1994   Create util.h with last_path_component replacing strdup + basename.
1995   Use gcc's printf attribute wherever possible.
1996   In _line_append, use "sizeof buf - 1" rather than equivalent "4095".
1997   Introduce is_same_inode macro, now including a comparison of st_dev.
1998   Don't leak a file descriptor in _lock_file() when flock fails.
1999   Add SUN's LDOM virtual block device (vdisk) and ps3disk to filters.
2000   Split metadata-external.h out from metadata.h for the tools to use.
2001
2002 Version 2.02.27 - 17th July 2007
2003 ================================
2004   Fix snapshot cow area deactivation if origin is not active. (2.02.13)
2005   Fix configure libdevmapper.h check when --with-dmdir is used.
2006   Turn _add_pv_to_vg() into external library function add_pv_to_vg().
2007   Add pv_by_path() external library function.
2008   Tidy clvmd-openais of redundant bits, and improve an error report.
2009   Cope with find_seg_by_le() failure in check_lv_segments().
2010   Call dev_iter_destroy() if _process_all_devs() is interrupted by sigint.
2011   Add vg_mda_count and pv_mda_count columns to reports.
2012   Fix dumpconfig to use log_print instead of stdout directly.
2013   Remove unused parameter 'fid' from _add_pv_to_vg.
2014   Add kernel and device-mapper targets versions to lvmdump.
2015   Replace BSD (r)index with C89 str(r)chr.
2016   Handle vgsplit of an entire VG as a vgrename.
2017   Reinitialise internal lvmdiskscan variables when called repeatedly.
2018   Fix missing lvm_shell symbol in lvm2cmd library. (2.02.23)
2019   Add vg_status function and clean up vg->status in tools directory.
2020   Add --ignoremonitoring to disable all dmeventd interaction.
2021   Remove get_ prefix from get_pv_* functions.
2022   clvmd-openais now uses cpg_local_get() to get nodeid, rather than Clm.
2023   Print warnings to stderr instead of stdout.
2024
2025 Version 2.02.26 - 15th June 2007
2026 ================================
2027   Update vgcfgrestore man page.
2028   Allow keyboard interrupt during user prompts when appropriate.
2029   Remove unused clvmd system-lv code.
2030   Replace many physical_volume struct dereferences with new get_pv_* functions.
2031   Suppress a benign compile-time warning.
2032   Convert find_pv_in_vg_by_uuid and pv_create to use PV handles.
2033   Add wrappers to some functions in preparation for external LVM library.
2034   Add -f to vgcfgrestore to list metadata backup files.
2035   Add vg_check_status to consolidate vg status checks and error messages.
2036   Add pvdisplay --maps implementation.
2037   Remove unsupported LVM1 options from vgcfgrestore man page.
2038   Update vgcfgrestore man page to show mandatory VG name.
2039   Update vgrename man page to include UUID and be consistent with lvrename.
2040   Add (experimental) OpenAIS support to clvmd.
2041   Fix deactivation code to follow dependencies and remove symlinks.
2042   Fix and clarify vgsplit error messages.
2043   Fix a segfault in device_is_usable() if a device has no table.
2044   Add some more debug messages to clvmd startup.
2045   Misc clvmd cleanups.
2046
2047 Version 2.02.25 - 27th April 2007
2048 =================================
2049   Fix get_config_uint64() to read a 64-bit value not a 32-bit one.
2050   Add -Wformat-security and change one fprintf() to fputs().
2051   Move regex functions into libdevmapper.
2052   Change some #include lines to search only standard system directories.
2053   Add devices/preferred_names config regex list for displayed device names.
2054   Free a temporary dir string in fcntl_lock_file() after use.
2055   Fix a dm_pool_destroy() in matcher_create().
2056   Introduce goto_bad macro.
2057   Fix warnings on x86_64 involving ptrdiff_t in log_error messages.
2058   Update pvck to include text metadata area and record detection.
2059   Add support functions for token counting in config file extracts.
2060   Update pvck to read labels on disk, with --labelsector parameter.
2061   Add count_chars and count_chars_len functions.
2062   Add /sys/block listings to lvm_dump.sh.
2063   Make lvm_dump.sh list /dev recursively.
2064   Fix thread race in clvmd.
2065   Add scan_sector param to label_read and _find_labeller.
2066   Make clvmd cope with quorum devices.
2067   Add extra internal error checking to clvmd.
2068   Add dev_read_circular.
2069   Add pvck command stub.
2070   Update lists of attribute characters in man pages.
2071   Change cling alloc policy attribute character from 'C' to l'.
2072   Fix creation and conversion of mirrors with tags.
2073   Fix vgsplit for lvm1 format (set and validate VG name in PVs metadata).
2074   Split metadata areas in vgsplit properly.
2075
2076 Version 2.02.24 - 19th March 2007
2077 =================================
2078   Fix processing of exit status in init scripts
2079   Fix vgremove to require at least one vg argument.
2080   Fix reading of striped LVs in LVM1 format.
2081   Flag nolocking as clustered so clvmd startup sees clustered LVs. (2.02.10)
2082   Add a few missing pieces of vgname command line validation.
2083   Support the /dev/mapper prefix on most command lines.
2084
2085 Version 2.02.23 - 8th March 2007
2086 ================================
2087   Fix vgrename active LV check to ignore differing vgids.
2088   Remove no-longer-used uuid_out parameter from activation info functions.
2089   Fix two more segfaults if an empty config file section encountered.
2090   Move .cache file into a new /etc/lvm/cache directory by default.
2091   Add devices/cache_dir & devices/cache_file_prefix, deprecating devices/cache.
2092   Create directory in fcntl_lock_file() if required.
2093   Exclude readline support from lvm.static.
2094   Fix a leak in a reporting error path (2.02.19).
2095
2096 Version 2.02.22 - 13th February 2007
2097 ====================================
2098   Correct -b and -P on a couple of man pages.
2099   Add global/units to example.conf.
2100   Fix loading of segment_libraries.
2101   If a PV reappears after it was removed from its VG, make it an orphan.
2102   Don't update metadata automatically if VGIDs don't match.
2103   Fix some vgreduce --removemissing command line validation.
2104
2105 Version 2.02.21 - 30th January 2007
2106 ===================================
2107   Add warning to lvm2_monitoring_init_rhel4 if attempting to stop monitoring.
2108   Fix vgsplit to handle mirrors.
2109   Reorder fields in reporting field definitions.
2110   Fix vgs to treat args as VGs even when PV fields are displayed.
2111   Fix md signature check to handle both endiannesses.
2112
2113 Version 2.02.20 - 25th January 2007
2114 ===================================
2115   dmeventd mirror sets ignore_suspended_devices and avoids scanning mirrors.
2116   Add devices/ignore_suspended_devices to ignore suspended dm devices.
2117   Add some missing close() and fclose() return code checks.
2118   Fix exit statuses of reporting tools (2.02.19).
2119   Add init script for dmeventd monitoring.
2120   lvm.static no longer interacts with dmeventd unless explicitly asked to.
2121   Add field definitions to report help text.
2122   Remove unnecessary cmd arg from target_*monitor_events().
2123   Add private variable to dmeventd shared library interface.
2124   Long-lived processes write out persistent dev cache in refresh_toolcontext().
2125   Fix refresh_toolcontext() always to wipe persistent device filter cache.
2126   Add is_long_lived to toolcontext.
2127   Add --clustered to man pages.
2128   Streamline dm_report_field_* interface.
2129   Change remaining dmeventd terminology 'register' to 'monitor'.
2130   Update reporting man pages.
2131   No longer necessary to specify alignment type for report fields.
2132
2133 Version 2.02.19 - 17th January 2007
2134 ===================================
2135   Fix a segfault if an empty config file section encountered.
2136   Move basic reporting functions into libdevmapper.
2137   Fix partition table processing after sparc changes (2.02.16).
2138   Fix cmdline PE range processing segfault (2.02.13).
2139   Some libdevmapper-event interface changes.
2140   Report dmeventd mirror monitoring status.
2141   Fix dmeventd mirror status line processing.
2142
2143 Version 2.02.18 - 11th January 2007
2144 ===================================
2145   Revised libdevmapper-event interface for dmeventd.
2146   Remove dmeventd mirror status line word limit.
2147   Use CFLAGS when linking so mixed sparc builds can supply -m64.
2148   Prevent permission changes on active mirrors.
2149   Print warning instead of error message if lvconvert cannot zero volume.
2150   Add snapshot options to lvconvert man page.
2151   dumpconfig accepts a list of configuration variables to display.
2152   Change dumpconfig to use --file to redirect output to a file.
2153   Avoid vgreduce error when mirror code removes the log LV.
2154   Remove 3 redundant AC_MSG_RESULTs from configure.in.
2155   Free memory in _raw_read_mda_header() error paths.
2156   Fix ambiguous vgsplit error message for split LV.
2157   Fix lvextend man page typo.
2158   Add configure --with-dmdir to compile against a device-mapper source tree.
2159   Use no flush suspending for mirrors.
2160   Add dmeventd_mirror register_mutex, tidy initialisation & add memlock.
2161   Fix create mirror with name longer than 22 chars.
2162   Fix some activate.c prototypes when compiled without devmapper.
2163   Fix dmeventd mirror to cope if monitored device disappears.
2164
2165 Version 2.02.17 - 14th December 2006
2166 ====================================
2167   Add missing pvremove error message when device doesn't exist.
2168   When lvconvert allocates a mirror log, respect parallel area constraints.
2169   Use loop to iterate through the now-ordered policy list in _allocate().
2170   Check for failure to allocate just the mirror log.
2171   Introduce calc_area_multiple().
2172   Support mirror log allocation when there is only one PV: area_count now 0.
2173   Fix detection of smallest area in _alloc_parallel_area() for cling policy.
2174   Add manpage entry for clvmd -T
2175   Fix gulm operation of clvmd, including a hang when doing lvchange -aey
2176   Fix hang in clvmd if a pre-command failed.
2177
2178 Version 2.02.16 - 1st December 2006
2179 ===================================
2180   Fix VG clustered read locks to use PR not CR.
2181   Adjust some alignments for ia64/sparc.
2182   Fix mirror segment removal to use temporary error segment.
2183   Always compile debug logging into clvmd.
2184   Add startup timeout to RHEL4 clvmd startup script.
2185   Add -T (startup timeout) switch to clvmd.
2186   Improve lvm_dump.sh robustness.
2187   Update lvm2create_initrd to support gentoo.
2188
2189 Version 2.02.15 - 21st November 2006
2190 ====================================
2191   Fix clvmd_init_rhel4 line truncation (2.02.14).
2192   Install lvmdump by default.
2193   Fix check for snapshot module when activating snapshot.
2194   Fix pvremove error path for case when PV is in use.
2195   Warn if certain duplicate config file entries are seen.
2196   Enhance lvm_dump.sh for sysreport integration and add man page.
2197   Fix --autobackup argument which could never disable backups.
2198   Fix a label_verify error path.
2199
2200 Version 2.02.14 - 10th November 2006
2201 ====================================
2202   Fix adjusted_mirror_region_size() to handle 64-bit size.
2203   Add some missing bounds checks on 32-bit extent counters.
2204   Add Petabyte and Exabyte support.
2205   Fix lvcreate error message when 0 extents requested.
2206   lvremove man page: volumes must be cluster inactive before being removed.
2207   Protect .cache manipulations with fcntl locking.
2208   Change .cache timestamp comparisons to use ctime.
2209   Fix mirror log LV writing to set all bits in whole LV.
2210   Fix clustered VG detection and default runlevels in clvmd_init_rhel4.
2211   Fix high-level free space check for partial allocations.
2212
2213 Version 2.02.13 - 27th October 2006
2214 ===================================
2215   Add couple of missing files to tools/Makefile CLEAN_TARGETS.
2216   When adding snapshot leave cow LV mapped device active after zeroing.
2217   Fix a clvmd debug message.
2218   Add dev_flush() to set_lv().
2219   Add lvchange --resync.
2220   Perform high-level free space check before each allocation attempt.
2221   Don't allow a node to remove an LV that's exclusively active on anther node.
2222   Cope if same PV is included more than once in cmdline PE range list.
2223   Set PV size to current device size if it is found to be zero.
2224   Add segment parameter to target_present functions.
2225
2226 Version 2.02.12 - 16th October 2006
2227 ===================================
2228   Fix pvdisplay to use vg_read() for non-orphans.
2229   Fall back to internal locking if external locking lib is missing or fails.
2230   Retain activation state after changing LV minor number with --force.
2231   Propagate clustered flag in vgsplit and require resizeable flag.
2232
2233 Version 2.02.11 - 12th October 2006
2234 ===================================
2235   Add clvmd function to return the cluster name. not used by LVM yet.
2236   Add cling allocation policy.
2237   Change _check_contiguous() to use _for_each_pv().
2238   Extend _for_each_pv() to allow termination without error.
2239   Abstract _is_contiguous().
2240   Remove duplicated pv arg from _check_contiguous().
2241   Accept regionsize with lvconvert.
2242   Add report columns with underscore before field names ending 'size'.
2243   Correct regionsize default on lvcreate man page (MB).
2244   Fix clvmd bug that could cause it to die when a node with a long name crashed.
2245   Add device size to text metadata.
2246   Fix format_text mda_setup pv->size and pv_setup pe_count calculations.
2247   Fix _for_each_pv() for mirror with core log.
2248   Add lvm_dump.sh script to create a tarball of debugging info from a system.
2249   Capture error messages in clvmd and pass them back to the user.
2250   Remove unused #defines from filter-md.c.
2251   Make clvmd restart init script wait until clvmd has died before starting it.
2252   Add -R to clvmd which tells running clvmds to reload their device cache.
2253   Add LV column to reports listing kernel modules needed for activation.
2254   Show available fields if report given invalid field. (e.g. lvs -o list)
2255   Add timestamp functions with --disable-realtime configure option.
2256   Add %VG, %LV and %FREE suffices to lvcreate/lvresize --extents arg.
2257   Fix two potential NULL pointer derefs in error cases in vg_read().
2258   Separate --enable-cluster from locking lib options in lvmconf.sh.
2259   Add a missing comma in lvcreate man page.
2260
2261 Version 2.02.10 - 19th September 2006
2262 =====================================
2263   Fix lvconvert mirror change case detection logic.
2264   Fix mirror log detachment so it correctly becomes a standalone LV.
2265   Extend _check_contiguous() to detect single-area LVs.
2266   Include mirror log (untested) in _for_each_pv() processing.
2267   Use MIRROR_LOG_SIZE constant.
2268   Remove struct seg_pvs from _for_each_pv() to generalise.
2269   Avoid adding duplicates to list of parallel PVs to avoid.
2270   Fix several incorrect comparisons in parallel area avoidance code.
2271   Fix segment lengths when flattening existing parallel areas.
2272   Log existing parallel areas prior to allocation.
2273   Fix mirror log creation when activation disabled.
2274   Don't attempt automatic recovery without proper locking.
2275   When using local file locking, skip clustered VGs.
2276   Add fallback_to_clustered_locking and fallback_to_local_locking parameters.
2277   lvm.static uses built-in cluster locking instead of external locking.
2278   Don't attempt to load shared libraries if built statically.
2279   Change default locking_lib to liblvm2clusterlock.so.
2280   Add skip_dev_dir() to process command line VGs.
2281   Stop clvmd complaining about nodes that have left the cluster.
2282   Move lvm_snprintf(), split_words() and split_dm_name() into libdevmapper.
2283   Add lvconvert man page.
2284   Add mirror options to man pages.
2285   Prevent mirror renames.
2286   Move CMDLIB code into separate file and record whether static build.
2287
2288 Version 2.02.09 - 17th August 2006
2289 ==================================
2290   Fix PE_ALIGN for pagesize over 32KB.
2291   Separate out LVM1_PE_ALIGN and pe_align().
2292   Add lvm_getpagesize wrapper.
2293   Add --maxphysicalvolumes to vgchange.
2294
2295 Version 2.02.08 - 15th August 2006
2296 ==================================
2297   Add checks for duplicate LV name, lvid and PV id before writing metadata.
2298   Report all sanity check failures, not just the first.
2299   Fix missing lockfs on first snapshot creation.
2300   Add unreliable --trustcache option to reporting commands.
2301   Fix locking for mimage removal.
2302   Fix clvmd_init_rhel4 'status' exit code.
2303
2304 Version 2.02.07 - 17th July 2006
2305 ================================
2306   Fix activation logic in lvchange --persistent.
2307   Don't ignore persistent minor numbers when activating.
2308   Use RTLD_GLOBAL when loading shared libraries.
2309   Add some forgotten memlock checks to _vg_read to protect against full scans.
2310   Add mutex to dmeventd_mirror to avoid concurrent execution.
2311   Fix vgreduce --removemissing to return success if VG is already consistent.
2312   Fix return code if VG specified on command line is not found.
2313   Fix PV tools to include orphaned PVs in default output again.
2314   Fixed unaligned access when using clvm.
2315   Fix an extra dev_close in a label_read error path.
2316   Append patches to commit emails.
2317   Fix target_register_events args.
2318   Prevent snapshots of mirrors.
2319   Add DISTCLEAN_TARGETS to make template for configure.h.
2320   More fixes to error paths.
2321   Fix lvcreate corelog validation.
2322   Add --config for overriding most config file settings from cmdline.
2323   Quote arguments when printing command line.
2324   Remove linefeed from 'initialising logging' message.
2325   Add 'Completed' debug message.
2326   Don't attempt library exit after reloading config files.
2327   Always compile with libdevmapper, even if device-mapper is disabled.
2328
2329 Version 2.02.06 - 12th May 2006
2330 ===============================
2331   Propagate --monitor around cluster.
2332   Add --monitor to vgcreate and lvcreate to control dmeventd registration.
2333   Filter LCK_NONBLOCK in clvmd lock_vg.
2334   Add --nosync to lvcreate with LV flag NOTSYNCED.
2335   Use mirror's uuid for a core log.
2336   Add mirror log fault-handling policy.
2337   Improve mirror warning messages and tidy dmeventd syslog output.
2338   Propagate nosync flag around cluster.
2339   Allow vgreduce to handle mirror log failures.
2340   Add --corelog to lvcreate and lvconvert.
2341   Create a log header for replacement in-sync mirror log.
2342   Use set_lv() and dev_set() to wipe sections of devices.
2343   Add mirror_in_sync() flag to avoid unnecessary resync on activation.
2344   Add mirror_library description to example.conf.
2345   Fix uuid_from_num() buffer overrun.
2346   Make SIZE_SHORT the default for display_size().
2347   Fix some memory leaks in error paths found by coverity.
2348   Use C99 struct initialisers.
2349   Move DEFS into configure.h.
2350   Clean-ups to remove miscellaneous compiler warnings.
2351   Improve stripe size validation.
2352   Increase maximum stripe size limit to physical extent size for lvm2 metadata.
2353   Fix activation code to check for pre-existing mirror logs.
2354   Tighten region size validation.
2355   Ignore empty strings in config files.
2356   Require non-zero regionsize and document parameter on lvcreate man page.
2357   Invalidate cache if composition of VG changed externally.
2358
2359 Version 2.02.05 - 21st April 2006
2360 =================================
2361   Fix vgid string termination in recent cache code.
2362
2363 Version 2.02.04 - 19th April 2006
2364 =================================
2365   Check for libsepol.
2366   Add some cflow & scope support.
2367   Separate out DEFS from CFLAGS.
2368   Remove inlines and use unique function names.
2369
2370 Version 2.02.03 - 14th April 2006
2371 =================================
2372   vgrename accepts vgid and exported VG.
2373   Add --partial to pvs.
2374   When choosing between identically-named VGs, also consider creation_host.
2375   Provide total log suppression with 2.
2376   Fix vgexport/vgimport to set/reset PV exported flag so pv_attr is correct.
2377   Add vgid to struct physical_volume and pass with vg_name to some functions.
2378   If two or more VGs are found with the same name, use one that is not exported.
2379   Whenever vgname is captured, also capture vgid and whether exported.
2380   Remove an incorrect unlock_vg() from process_each_lv().
2381   Update extent size information in vgchange and vgcreate man pages.
2382   Introduce origin_from_cow() and lv_is_visible().
2383   pvremove without -f now fails if there's no PV label.
2384   Support lvconvert -s.
2385   Suppress locking library load failure message if --ignorelockingfailure.
2386   Propagate partial mode around cluster.
2387   Fix archive file expiration.
2388   Fix dmeventd build.
2389   clvmd now uses libcman rather than cman ioctls.
2390   clvmd will allow new cman to shutdown on request.
2391
2392 Version 2.02.02 - 7th February 2006
2393 ===================================
2394   Add %.so: %.a make template rule.
2395   Switchover library building to use LIB_SUFFIX.
2396   Only do lockfs filesystem sync when suspending snapshots.
2397   Always print warning if activation is disabled.
2398   vgreduce removes mirror images.
2399   Add --mirrorsonly to vgreduce.
2400   vgreduce replaces active LVs with error segment before removing them.
2401   Set block_on_error parameter if available.
2402   Add target_version.
2403   Add details to format1 'Invalid LV in extent map' error message.
2404   Fix lvscan snapshot full display.
2405   Bring lvdisplay man page example into line.
2406   Add mirror dmeventd library.
2407   Add some activation logic to remove_mirror_images().
2408   lvconvert can remove specified PVs from a mirror.
2409   lvconvert turns an existing LV into a mirror.
2410   Allow signed mirrors arguments.
2411   Move create_mirror_log() into toollib.
2412   Determine parallel PVs to avoid with ALLOC_NORMAL allocation.
2413   Fix lv_empty.
2414
2415 Version 2.02.01 - 23rd November 2005
2416 ====================================
2417   Fix lvdisplay cmdline to accept snapshots.
2418   Fix open RO->RW promotion.
2419   Fix missing vg_revert in lvcreate error path.
2420
2421 Version 2.02.00 - 10th November 2005
2422 ====================================
2423   Extend allocation areas to avoid overflow with contiguous with other PVs.
2424   Stop lvcreate attempting to wipe zero or error segments.
2425   Added new lvs table attributes.
2426   Separated out activation preload.
2427   Moved activation functions into libdevmapper.
2428   Fixed build_dm_name.
2429   Add return macros.
2430   Added xen xvd devices.
2431   Clear up precommitted metadata better.
2432   A pvresize implementation.
2433   Fix contiguous allocation when there are no preceding segments.
2434   Add mirror_seg pointer to lv_segment struct.
2435   Only keep a device open if it's known to belong to a locked VG.
2436   Fix lvdisplay to show all mirror destinations.
2437   Replacement suspend code using libdevmapper dependency tree.
2438   Add DEFS to make.tmpl.
2439   Use dm_is_dm_major instead of local copy.
2440   Allow mapped devices to be used as PVs.
2441   Move set_selinux_context into libdevmapper.
2442   Fix automatic text metadata buffer expansion (using macro).
2443   Cache formatted text metadata buffer between metadata area writes.
2444   Add pe_start field to pvs.
2445   Add 'LVM-' prefix to uuids.
2446   Split lv_segment_area from lv_segment to permit extension.
2447   Replacement deactivation code using libdevmapper dependency tree.
2448   Simplify dev_manager_info().
2449   Attempt to load missing targets using modprobe.
2450   Add -a to lvscan.
2451   Move mknodes into libdevmapper.
2452   Move bitset, hash, pool and dbg_malloc into libdevmapper.
2453
2454 Version 2.01.15 - 16th October 2005
2455 ===================================
2456   Refuse to run pvcreate/pvremove on devices we can't open exclusively.
2457   Use ORPHAN lock definition throughout.
2458   Validate chunksize in lvcreate.
2459   Reduce chunksize limit to 512k.
2460   Fix chunksize field in reports.
2461   Don't hide snapshots from default 'lvs' output.
2462   Add is_dm_major() for use in duplicate device detection in lvmcache_add().
2463   Really switch device number in lvmcache when it says it is doing so.
2464   Option for bitset memory allocation using malloc as well as pool.
2465   Don't assume exactly two mirrors when parsing mirror status.
2466   Suppress fsync() error message on filesystems that don't support it.
2467   Fix yes_no_prompt() error handling.
2468   Add lvm.conf comment warning against multiple filter lines.
2469   Tidy lvmconf.sh.
2470   Add format1 dev_write debug messages.
2471   Add clustered VG attribute to report.
2472   Move lvconvert parameters into struct lvconvert_params.
2473   Add clustered VG flag to LV lock requests.
2474   Change LV locking macros to take lv instead of lvid.
2475   Prepend 'cluster' activation parameter to mirror log when appropriate.
2476   Pass exclusive flag to lv_activate and on to target activation code.
2477   Prevent snapshot creation in a clustered VG for now.
2478   Factor out adjusted_mirror_region_size() and generate_log_name_format().
2479   Move compose_log_line() into mirror directory.
2480   Factor out _get_library_path().
2481   Don't kill idling clvmd threads.
2482   clvmd no longer takes out locks for non-clustered LVs.
2483   Recognise ATA over Ethernet (aoe) devices.
2484
2485 Version 2.01.14 - 4th August 2005
2486 =================================
2487   Fix lvconvert PV parameter in help string.
2488   Prevent snapshots getting activated in a clustered VG.
2489   Separate out _build_dev_string.
2490   Move zero_lv to toollib.
2491   Fix pool format handler to work with pv segment code.
2492
2493 Version 2.01.13 - 13th July 2005
2494 ================================
2495   Fix pvmove segment splitting.
2496   Abstract vg_validate.
2497   Only make one attempt at contiguous allocation.
2498   Fix lvm1 format metadata read.
2499   Fix lvm1 format non-mirror lvcreate.
2500
2501 Version 2.01.12 - 14th June 2005
2502 ================================
2503   Various allocation-related pvmove fixes.
2504   Log an error if clvmd can't resolve a host name got from CCS.
2505   Fix potential spin loop in clvmd.
2506
2507 Version 2.01.11 - 13th June 2005
2508 ================================
2509   Added lvmconf.sh.
2510   Use matchpathcon mode parameter.
2511   Don't defer closing dead FDs in clvmd.
2512   Remove hard-coded 64k text metadata writing restriction.
2513   Make VG name restrictions consistent.
2514   Introduce lvconvert.  So far only removes mirror images.
2515   Allow mirror images to be resized.
2516   Allow mirror images to have more than one segment.
2517   Centralise restrictions on LV names.
2518   Always insert an intermediate layer for mirrors.
2519   Suppress hidden LVs from reports unless --all is given.
2520   Use square brackets for hidden LVs in reports.
2521   Allow the creation of mirrors with contiguous extents.
2522   Always perform sanity checks against metadata before committing it to disk.
2523   Split lv_extend into two steps: choosing extents + allocation to LV(s).
2524   Add mirror log region size to metadata.
2525   Use list_iterate_items throughout and add list*back macros.
2526   Introduce seg_ macros to access areas.
2527   Add segtype_is_ macros.
2528   Support tiny metadata areas for pool conversions.
2529   Mirror activation handles disk log as well as core.
2530   Activation code recognises mirror log dependency.
2531   Add mirror_log and regionsize fields to report.
2532   Fix non-orphan pvchange -u.
2533   Fix vgmerge to handle duplicate LVIDs.
2534   Move archiver code from tools into library.
2535   vgscan/change/display/vgs automatically create metadata backups if needed.
2536   Merge cloned allocation functions.
2537   Fix contiguous allocation policy with linear.
2538   Cope with missing format1 PVs again.
2539   Remove lists of free PV segments.
2540   Simplify pv_maps code and remove slow bitset algorithm.
2541   Red-Hat-ify the clvmd rhel4 initscript.
2542   %Zu->%zu
2543   Fix loopfiles alias alloc & mem debugging.
2544   Un-inline dbg_strdup.
2545   lv_reduce tidying.
2546   Remove some unnecessary parameters.
2547   Introduce seg_is macros.
2548
2549 Version 2.01.10 - 3rd May 2005
2550 ==============================
2551   Don't create backup and archive dirs till needed.
2552   Reinstate full PV size when removing from VG.
2553   Support loopfiles for testing.
2554   Tidy lv_segment interface.
2555   pv_segment support.
2556   vgchange --physicalextentsize
2557   Internal snapshot restructuring.
2558   Remove unused internal non-persistent snapshot option.
2559   Allow offline extension of snapshot volumes.
2560   Move from 2-step to 3-step on-disk metadata commit.
2561   Scan ramdisks too and allow non-O_DIRECT fallback.
2562   Annotate, tidy and extend list.h.
2563   Alignment tidying.
2564   Make clvmd work around some "bugs" in gulm's node state notifications.
2565   Tidy clvmd's SIGHUP handler
2566
2567 Version 2.01.09 - 4th April 2005
2568 ================================
2569   Add --ignorelockingfailure to vgmknodes.
2570   clvmd: Don't allow user operations to start until the lvm thread is fully up.
2571   clvmd-gulm: set KEEPALIVE on sockets.
2572
2573 Version 2.01.08 - 22nd March 2005
2574 =================================
2575   Add clustered attribute so vgchange can identify clustered VGs w/o locking.
2576   Improve detection of external changes affecting internal cache.
2577   Add 'already in device cache' debug message.
2578   Add -a to pvdisplay -C.
2579   Avoid rmdir opendir error messsages when dir was already removed.
2580   Tighten signal handlers.
2581   Avoid some compiler warnings.
2582   Additional rename failure error message.
2583   read/write may be macros.
2584   clvmd: don't take out lvm thread lock at startup, it only protects jobs list.
2585
2586 Version 2.01.07 - 8th March 2005
2587 ================================
2588   Cope with new devices appearing by rescanning /dev if a uuid can't be found.
2589   Remove DESTDIR from LVM_SHARED_PATH.
2590   clvmd fixes: make FDs close-on-exec
2591                gulm unlocks VG & orphan locks at startup in case they are stale
2592                gulm now unlocks VG & orphan locks if client dies.
2593
2594 Version 2.01.06 - 1st March 2005
2595 ================================
2596   Suppress 'open failed' error messages during scanning.
2597   Option to suppress warnings of file descriptors left open.
2598   Fix default value of metadatacopies in documentation (2->1).
2599   Fix clvmd-gulm locking.
2600   ./configure --enable-debug now enables debugging code in clvmd.
2601   Fix clvmd-gulm node up/down code so it actually works.
2602   clvmd-gulm now releases locks when shut down.
2603
2604 Version 2.01.05 - 18th February 2005
2605 ====================================
2606   Static binary invokes dynamic binary if appropriate.
2607   Make clvmd config check a little more tolerant.
2608   gulm clvmd can now cope with >1 message arriving in a TCP message.
2609
2610 Version 2.01.04 - 9th February 2005
2611 ===================================
2612   Add fixed offset to imported pool minor numbers.
2613   Update binary pathnames in clvmd_init_rhel4.
2614   lvm2cmd.so should skip the check for open fds.
2615   Remove unused -f from pvmove.
2616   Gulm clvmd doesn't report "connection refused" errors.
2617   clvmd does a basic config file sanity check at startup.
2618   Fix potential thread shutdown race in clvmd.
2619
2620 Version 2.01.03 - 1st February 2005
2621 ===================================
2622   More 64-bit display/report fixes.
2623   More informative startup mesg if can't create /etc/lvm.
2624   Fix snapshot device size bug (since 2.01.01).
2625   clvmd announces startup and cluster connection in syslog.
2626   Gulm clvmd doesn't hang trying to talk to a rebooted node.
2627   Gulm clvmd doesn't print cman error on startup.
2628
2629 Version 2.01.02 - 21st January 2005
2630 ===================================
2631   Update clvmd_init_rhel4: use lvm.static and don't load dlm.
2632   Fix some size_t printing.
2633   Fix 64 bit xlate consts.
2634   Split out pool sptype_names to avoid unused const.
2635   Always fail if random id generation fails.
2636   Recognise gnbd devices.
2637   Fix clvmd startup bug introduced in cman/gulm amalgamation.
2638   Improve reporting of node-specific locking errors.
2639
2640 Version 2.01.01 - 19th January 2005
2641 ===================================
2642   Fix clvmd lv_info_by_lvid open_count.
2643   Store snapshot and origin sizes separately.
2644   Update vgcreate man page.
2645
2646 Version 2.01.00 - 17th January 2005
2647 ===================================
2648   Fix vgscan metadata auto-correction.
2649   Only ask libdevmapper for open_count when we need it.
2650   Adjust RHEL4 clvmd init script priority.
2651   Enable building of CMAN & GULM versions of clvmd into a single binary
2652
2653 Version 2.00.33 - 7th January 2005
2654 ==================================
2655   pvcreate wipes first 4 sectors unless given --zero n.
2656   gulm clvmd now uses new ccsd key names.
2657   gulm clvmd now doesn't ignore the first node in cluster.conf
2658   Improve clvmd failure message if it's already running.
2659   Allow user to kill clvmd during initialisation.
2660   Fix off-by-one error in cluster_locking that could cause read hangs.
2661
2662 Version 2.00.32 - 22nd December 2004
2663 ====================================
2664   Drop static/dl restriction for now.
2665   Fix an error fprintf.
2666   Fix vgdisplay -s. Breaks (undocumented) lvs/pvs/vgs -s instead for now.
2667   Fix device reference counting on re-opens.
2668   Ignore sysfs symlinks when DT_UNKNOWN.
2669   Add clvmd init script for RHEL4.
2670   Skip devices that are too small to be PVs.
2671   Fix pvchange -x segfault with lvm2-format orphan.
2672   Cope with empty msdos partition tables.
2673   Add CONTRIBUTORS file.
2674
2675 Version 2.00.31 - 12th December 2004
2676 ====================================
2677   Reopen RO file descriptors RW if necessary.
2678
2679 Version 2.00.30 - 10th December 2004
2680 ====================================
2681   Additional device-handling debug messages.
2682   Additional verbosity level -vvvv includes line numbers and backtraces.
2683   Verbose messages now go to stderr not stdout.
2684   Close any stray file descriptors before starting.
2685   Refine partitionable checks for certain device types.
2686   Allow devices/types to override built-ins.
2687   Fix lvreduce man page .i->.I
2688   Fix vgsplit man page title.
2689   Fix clvmd man makefile.
2690   Extend dev_open logging.
2691   Make clvmd_fix_conf.sh UNDOable.
2692
2693 Version 2.00.29 - 27th November 2004
2694 ====================================
2695   xlate compilation fix.
2696
2697 Version 2.00.28 - 27th November 2004
2698 ====================================
2699   Fix partition table & md signature detection.
2700   Minor configure/makefile tidy.
2701   Export version.h from tools for clvmd.
2702
2703 Version 2.00.27 - 24th November 2004
2704 ====================================
2705   Trap large memory allocation requests.
2706   Fix to partition table detection code.
2707   Improve filter debug mesgs.
2708   Make clvmd_fix_conf.sh UNDOable
2709
2710 Version 2.00.26 - 23rd November 2004
2711 ====================================
2712   Improve pool debugging stats.
2713   Detect partition table signature.
2714   pvcreate wipes md superblocks. (With --uuid or --restorefile it prompts.)
2715   Separate out md superblock detection code.
2716   Prevent snapshot origin resizing.
2717   Improve a vgremove error message.
2718   Update some man pages.
2719   Allow y/n with -ae args (exclusive activation).
2720   Fixes to lvcreate vgname parsing.
2721   Fix dm_name string size calculation.
2722   Improve clvmd error reporting during startup.
2723   Make clvmd cope with large gaps in node numbers IDs.
2724   Make clvmd initialisation cope better with debugging output.
2725   Tidy clvmd socket callbacks so all work happens outside main loop.
2726   clvmd -V now displays lvm version too.
2727   Add optional gulm build for clvmd
2728
2729 Version 2.00.25 - 29th September 2004
2730 =====================================
2731   Fix return code from rm_link for vgmknodes.
2732   Make clvmd LV hash table thread-safe.
2733   Fix clvmd locking so it will lock out multiple users on the same node.
2734   Fix clvmd VG locking to it can cope with multiple VG locks.
2735   Remove spurious trailing dot in lvreduce man page.
2736   Fix vgremove locking.
2737
2738 Version 2.00.24 - 16th September 2004
2739 =====================================
2740   Fix pool_empty so it really does empty the memory pool.
2741   Rename old segtypes files to segtype.
2742   Some fixes to memory debugging code.
2743   Exclude internal commands formats & segtypes from install.
2744
2745 Version 2.00.23 - 15th September 2004
2746 =====================================
2747   Export dm name build & split functions.
2748   Use O_NOATIME on devices if available.
2749   Write log message when each segtype/format gets initialised.
2750   New commands 'segtypes' and 'formats'.
2751   Suppress pvmove abort message in test mode.
2752   Improve pvcreate/remove device not found error message.
2753   Allow pvmove to move data within the same PV.
2754   Describe how pvmove works on man page.
2755   Test for incompatible format/segtype combinations in lv_extend.
2756   Fix lvchange example on man page.
2757
2758 Version 2.00.22 - 3rd September 2004
2759 ====================================
2760   Fix /dev/vgname perms.
2761   Restructure xlate.h.
2762   Add clvmd man page.
2763
2764 Version 2.00.21 - 19th August 2004
2765 ==================================
2766   Update cnxman-socket.h from cman.
2767   Recognise iseries/vd devices.
2768   Use 'make install_cluster' to install cluster extensions only.
2769   Cope with DT_UNKNOWN in sysfs.
2770   Fix extents_moved metadata size comment.
2771   Remove duplicate line in pvremove help text.
2772   Support variable mirror region size.
2773   Support PE ranges in pvmove source PV.
2774   Fixes to as-yet-unused LV segment splitting code.
2775   Change alloc_areas to pe_ranges and allow suppression of availability checks.
2776   Add dev_size column to pvs.
2777   Add report columns for in-kernel device number.
2778
2779 Version 2.00.20 - 3 July 2004
2780 =============================
2781   More autoconf fixes.
2782   Fix device number handling for 2.6 kernels.
2783
2784 Version 2.00.19 - 29 June 2004
2785 ==============================
2786   Reduce severity of setlocale failure message.
2787   Recognise argv[0] "initrd-lvm" (pld-linux).
2788   Make -O2 configurable.
2789   Added --disable-selinux to configure script.
2790   LD_FLAGS->LDFLAGS & LD_DEPS->LDDEPS in configure script.
2791   Add init_debug to clvmd.
2792
2793 Version 2.00.18 - 24 June 2004
2794 ==============================
2795   Fix vgchange activation.
2796   Add cluster support.
2797
2798 Version 2.00.17 - 20 June 2004
2799 ==============================
2800   configure --enable-fsadm to try out fsadm.  fsadm is not tested yet.
2801   Display all filtered devices, not just PVs, with pvs -a.
2802   Fix sync_dir() when no / in filename
2803   vgcfgbackup -f accepts template with %s for VG name.
2804   Extend hash functions to handle non-null-terminated data.
2805   Add local activation support.
2806   Tidy relative paths in makefile includes.
2807   fsadm support for fsck and resizing - needs testing.
2808   Add read-only GFS pool support.
2809   Add lvm2create_initrd script from http://poochiereds.net/svn/lvm2/
2810   Fix rounding of large diplayed sizes.
2811   Suppress decimal point when using units of sectors/bytes.
2812   Additional kernel target checks before pvmove & snapshot creation.
2813   Add i2o_block.
2814
2815 Version 2.00.16 - 24 May 2004
2816 =============================
2817   Set area_count within alloc_lv_segment.
2818   Remove error labels from lvresize.
2819   Fix a pvs error path.
2820   xxchange -ae for exclusive activation.
2821   Don't return non-zero status if there aren't any volume groups.
2822   Add --alloc argument to tools.
2823   Rename allocation policies to contiguous, normal, anywhere, inherit.
2824   nextfree becomes normal; anywhere isn't implemented yet.
2825   LV inherits allocation policy from VG. Defaults: LV - inherit; VG - normal
2826   Additional status character added to vgs to indicate allocation policy.
2827   Add reset_fn to external_locking.
2828   Ensure presence of virtual targets before attempting activating.
2829   Attempt to fix resizing of snapshot origins.
2830   Restructure lvresize, bringing it closer to lvcreate.
2831   A quick sanity check on vg_disk struct when read in.  More checks needed.
2832   Only include visible LVs in active/open counts.
2833   Add virtual segment types, zero and error.  A large sparse device can be
2834 constructed as a writeable snapshot of a large zero segment.
2835   Add --type to lvcreate/resize.
2836   Push lv_create & alloc policy up to tool level.
2837   Fix pvdisplay return code.
2838   Detect invalid LV names in arg lists.
2839   Reporting uses line-at-a-time output.
2840   lvm2 format sets unlimited_vols format flag.
2841   Internal-only metadata flag support.
2842   Basic checking for presence of device-mapper targets.
2843   Separate out polldaemon.
2844   Revise internal locking semantics.
2845   Move find_pv_by_name to library.
2846   Rename move->copy.
2847   Add devices to segments report.
2848   Begin separating out segment code. There's a lot of change here.
2849   Compress any (obsolete) long LVM1 pvids encountered.
2850   Support for tagged config files.
2851   Don't abort operations if selinux present but disabled.
2852   Fix typo in configure which left HAVE_LIBDL unset.
2853
2854 Version 2.00.15 - 19 Apr 2004
2855 =============================
2856   configure --with-owner= --with-group= to avoid -o and -g args to 'install'
2857
2858 Version 2.00.14 - 16 Apr 2004
2859 =============================
2860   Use 64-bit file functions by default.
2861
2862 Version 2.00.13 - 16 Apr 2004
2863 =============================
2864   Set devices/md_component_detection = 1 to ignore devices containing md
2865   superblocks. [Luca Berra]
2866   Ignore error setting selinux file context if fs doesn't support it.
2867
2868 Version 2.00.12 - 14 Apr 2004
2869 =============================
2870   Install a default lvm.conf into /etc/lvm if there isn't one already.
2871   Allow different installation dir for lvm.static (configure --staticdir=)
2872   Fix inverted selinux error check.
2873   Recognise power2 in /proc/devices.
2874   Fix counting in lvs_in_vg_opened. [It ignored devices open more than once.]
2875
2876 Version 2.00.11 - 8 Apr 2004
2877 ============================
2878   Set fallback_to_lvm1 in lvm.conf (or configure --enable-lvm1_fallback)
2879   to run lvm1 binaries if running a 2.4 kernel without device-mapper.
2880
2881 Version 2.00.10 - 7 Apr 2004
2882 ============================
2883   More fixes for static build.
2884   Add basic selinux support.
2885   Fix sysfs detection.
2886
2887 Version 2.00.09 - 31 Mar 2004
2888 =============================
2889   Update copyright notices for Red Hat.
2890   Fix vgmknodes to remove dud /dev/mapper entries. (libdevmapper update reqd).
2891   Add LVM1-style colon output to vgdisplay.
2892   lvchange --refresh to reload active LVs.
2893   Add string display to memory leak dump.
2894   Add locking flags & memlock option.
2895   Add list_versions to library.
2896   Ignore open hidden LVs when checking if deactivation is OK.
2897   Suppress move percentage when device inactive.
2898   Add lv_info_by_lvid.
2899   Various tidy-ups to the build process.
2900   Rebaseline internal verbose level.
2901   Add --nolocking option for read operations if locking is failing.
2902   Add option to compile into a library.
2903   When compiled without libdevmapper, only print warning message once.
2904   Fix lvreduce PV extent calculations.
2905   Fix DESTDIR to work with configure path overrides.
2906   Always use / as config file separator & rename internal config file variables.
2907   Add support for tagging PV/VG/LVs and hosts.
2908   Fix rare bug in recognition of long cmdline argument forms.
2909   Add basic internationalisation infrastructure.
2910   Don't recurse symlinked dirs such as /dev/fd on 2.6 kernels.
2911   Update autoconf files.
2912   Add sysfs block device filtering for 2.6 kernels.
2913   Update refs for move to sources.redhat.com.
2914
2915 Friday 14th November 2003
2916 =========================
2917 Some bug fixes & minor enhancements, including:
2918   Backwards compatibility with LVM1 metadata improved.
2919   Missing man pages written.
2920   Tool error codes made more consistent.
2921   vgmknodes written.
2922   O_DIRECT can be turned off if it doesn't work in your kernel.
2923   dumpconfig to display the active configuration file
2924
2925 You need to update libdevmapper before using 'vgmknodes' or 'vgscan --mknodes'.
2926 If your root filesystem is on an LV, you should run one of those two
2927 commands to fix up the special files in /dev in your real root filesystem
2928 after finishing with your initrd.  Also, remember you can use
2929 'vgchange --ignorelockingfailure' on your initrd if the tool fails because
2930 it can't write a lock file to a read-only filesystem.
2931
2932 Wednesday 30th April 2003
2933 =========================
2934 A pvmove implementation is now available for the new metadata format.
2935
2936 When running a command that allocates space (e.g. lvcreate), you can now
2937 restrict not only which disk(s) may be used but also the Physical Extents
2938 on those disks.  e.g. lvcreate -L 10 vg1 /dev/hda6:1000-2000:3000-4000
2939
2940
2941 Monday 18th November 2002
2942 ========================
2943
2944 The new format of LVM metadata is ready for you to test!
2945   We expect it to be more efficient and more robust than the original format.
2946   It's more compact and supports transactional changes and replication.
2947   Should things go wrong on a system, it's human-readable (and editable).
2948
2949 Please report any problems you find to the mailing list,
2950 linux-lvm@sistina.com.  The software has NOT yet been thoroughly
2951 tested and so quite possibly there'll still be some bugs in it.
2952 Be aware of the disclaimer in the COPYING file.
2953
2954 While testing, we recommend turning logging on in the configuration file
2955 to provide us with diagnostic information:
2956   log {
2957         file="/tmp/lvm2.log"
2958         level=7
2959         activation=1
2960   }
2961
2962 You should schedule regular backups of your configuration file and
2963 metadata backups and archives (normally kept under /etc/lvm).
2964
2965 Please read docs/example.conf and "man lvm.conf" to find out more about
2966 the configuration file.
2967
2968 To convert an existing volume group called vg1 to the new format using
2969 the default settings, use "vgconvert -M2 vg1".  See "man vgconvert".
2970
2971 -M (or --metadatatype in its long form) is a new flag to indicate which
2972 format of metadata the command should use for anything it creates.
2973 Currently, the valid types are "lvm1" and "lvm2" and they can be
2974 abbreviated to "1" and "2" respectively.  The default value for this
2975 flag can be changed in the global section in the config file.
2976
2977 Backwards-compatible support for the original LVM1 metadata format is
2978 maintained, but it can be moved into a shared library or removed
2979 completely with configure's --with-lvm1 option.
2980
2981 Under LVM2, the basic unit of metadata is the volume group.  Different
2982 volume groups can use different formats of metadata - vg1 could use
2983 the original LVM1 format while vg2 used the new format - but you can't
2984 mix formats within a volume group.  So to add a PV to an LVM2-format
2985 volume group you must run "pvcreate -M2" on it, followed by "vgextend".
2986
2987 With LVM2-format metadata, lvextend will let you specify striping
2988 parameters.  So an LV could consist of two or more "segments" - the
2989 first segment could have 3 stripes while the second segment has just 2.
2990
2991 LVM2 maintains a backup of the current metadata for each volume group
2992 in /etc/lvm/backup, and puts copies of previous versions in
2993 /etc/lvm/archive.  "vgcfgbackup" and "vgcfgrestore" can be used to
2994 create and restore from these files.  If you fully understand what
2995 you're doing, metadata can be changed by editing a copy of a current
2996 backup file and using vgcfgrestore to reload it.
2997
2998 Please read the pvcreate man page for more information on the new
2999 format for metadata.
3000
3001 All tools that can change things have a --test flag which can be used
3002 to check the effect  of a set of cmdline args without really making the
3003 changes.
3004
3005
3006 What's not finished?
3007 ====================
3008 The internal cache.  If you turn on debugging output you'll see lots of
3009 repeated messages, many of which will eventually get optimised out.
3010
3011 --test sometimes causes a command to fail (e.g. vgconvert --test) even
3012 though the real command would work: again, fixing this is waiting for
3013 the work on the cache.
3014
3015 Several of the tools do not yet contain the logic to handle full
3016 recovery: combinations of pvcreate and vgcfgrestore may sometimes be
3017 needed to restore metadata if a tool gets interrupted or crashes or
3018 finds something unexpected.  This applies particularly to tools that
3019 work on more than one volume group at once (e.g. vgsplit).
3020
3021 Display output.  Some metadata information cannot yet be displayed.
3022
3023 Recovery tools to salvage "lost" metadata directly from the disks:
3024 but we hope the new format will mean such tools are hardly ever needed!