WHATS_NEW

   1 Version 2.02.97 -
   2 ===============================
   3   Do not issue "Failed to handle a client connection" error if lvmetad killed.
   4   Support changing of discard and zeroing for thin pool.
   5   Report used discard for thin pool and volume.
   6   Add support for controlling discard behavior of thin pool.
   7   Detect features for new 1.1 thin pool target.
   8   Count percentage of completeness upwards when merging a snapshot volume.
   9   Skip activation when using vg/lvchange --sysinit -a ay and lvmetad is active.
  10   Fix extending RAID 4/5/6 logical volumes
  11   Fix test for PV with unknown VG in process_each_pv to ignore ignored mdas.
  12   Update man pages with --activate ay option and auto_activation_volume_list.
  13   Fix _alloc_parallel_area to avoid picking already-full areas for raid devices.
  14   Use vgchange -aay instead of vgchange -ay in clmvd init script.
  15   Add activation/auto_activation_volume_list to lvm.conf.
  16   Add --activate ay to lvcreate, lvchange, pvscan and vgchange.
  17   Add support for volume autoactivation using lvmetad.
  18   Add --activate synonym for --available arg and prefer --activate.
  19   Never issue discards when LV extents are being reconfigured, not deleted.
  20   Allow release_lv_segment_area to fail as functions it calls can fail.
  21   Open device read-only to obtain readahead value.
  22   Fix lvconvert error path NULL pointer dereference.
  23   Check for create_instance() fail in pvscan_lvmetad_single().
  24   Use 64bit math for reserved memory and stack.
  25   Add tests for kernel_send() errors in cmirrod.
  26   Print clean_bits in pull_state, fix cut&paste typo in cmirrord.
  27   Add tests for errors from closedir(), close() in cmirrord.
  28   Fix missing sync of filesystem when creating thin volume snapshot.
  29
  30 Version 2.02.96 - 8th June 2012
  31 ===============================
  32   Upstream source repo now fedorahosted.org git not sources.redhat.com CVS.
  33   Fix error paths for regex filter initialization.
  34   Re-enable partial activation of non-thin LVs until it can be fixed. (2.02.90)
  35   Fix alloc cling to cling to PVs already found with contiguous policy.
  36   Fix cling policy not to behave like normal policy if no previous LV seg.
  37   Fix allocation loop not to use later policies when --alloc cling without tags.
  38   Append _TO_LVSEG to names of internal A_CONTIGUOUS and A_CLING flags.
  39   Add missing pkg init --with-systemdsystemunitdir in configure.in (2.02.92).
  40   Fix division by zero if PV with zero PE count is used during vgcfgrestore.
  41   Add initial support for thin pool lvconvert.
  42   Fix lvrename for thin volumes (regression in for_each_sub_lv). (2.02.89)
  43   Fix up-convert when mirror activation is controlled by volume_list and tags.
  44   Warn of deadlock risk when using snapshots of mirror segment type.
  45   Fix bug in cmirror that caused incorrect status info to print on some nodes.
  46   Remove statement that snapshots cannot be tagged from lvm man page.
  47   Disallow changing cluster attribute of VG while RAID LVs are active.
  48   Fix lvconvert error message for non-mergeable volumes.
  49   Allow subset of failed devices to be replaced in RAID LVs.
  50   Prevent resume from creating error devices that already exist from suspend.
  51   Improve clmvd singlenode locking for better testing.
  52   Update and correct lvs man page with supported column names.
  53   Handle replacement of an active device that goes missing with an error device.
  54   Change change raid1 segtype always to request a flush when suspending.
  55   Add udev info and context to lvmdump.
  56   Add lvmetad man page.
  57   Fix RAID device replacement code so that it works under snapshot.
  58   Fix inability to split RAID1 image while specifying a particular PV.
  59   Update man pages to give them all the same look&feel.
  60   Fix lvresize of thin pool for striped devices.
  61   For lvresize round upward when specifying number of extents.
  62   For lvcreate with %FREE support rounding downward stripe alignment.
  63   Change message severity to log_very_verbose for missing dev info in udev db.
  64   Fix lvconvert when specifying removal of a RAID device other than last one.
  65   Fix ability to handle failures in mirrored log in dmeventd plugin. (2.02.89)
  66   Fix unlocking volume group in vgreduce in error path.
  67   Cope when VG name is part of the supplied name in lvconvert --splitmirrors -n.
  68   Fix exclusive lvchange running from other node. (2.02.89)
  69   Add 'vgscan --cache' functionality for consistency with 'pvscan --cache'.
  70   Keep exclusive activation in pvmove if LV is already active.
  71   Disallow exclusive pvmove if some affected LVs are not exclusively activated.
  72   Remove unused and wrongly set cluster VG flag from clvmd lock query command.
  73   Fix pvmove for exclusively activated LV pvmove in clustered VG. (2.02.86)
  74   Always free hash table on update_pvid_to_vgid() in lvmetad.
  75   Update and fix monitoring of thin pool devices.
  76   Check hash insert success in lock_vg in clvmd.
  77   Check for buffer overwrite in get_cluster_type() in clvmd.
  78   Fix global/detect_internal_vg_cache_corruption config check.
  79   Update lcov Makefile target to support all dmeventd plugins.
  80   Fix initializiation of thin monitoring. (2.02.92)
  81   Cope with improperly formatted device numbers in /proc/devices. (2.02.91)
  82   Exit if LISTEN_PID environment variable incorrect in lvmetad systemd handover.
  83   Use pvscan --cache instead of vgscan in lvmetad scripts.
  84   Fix fsadm propagation of -e option.
  85   Fix fsadm parsing of /proc/mounts files (don't check for substrings).
  86   Fix fsadm usage of arguments with space.
  87   Fix arg_int_value alongside ARG_GROUPABLE --major/--minor for lvcreate/change.
  88   Fix name conflicts that prevent down-converting RAID1 when specifying a device
  89   Improve thin_check option passing and use configured path.
  90   Add --with-thin-check configure option for path to thin_check.
  91   Fix error message when pvmove LV activation fails with name already in use.
  92   Better structure layout for device_info in dev_subsystem_name().
  93   Change message severity for creation of VG over uninitialised devices.
  94   Fix error path for failed toolcontext creation.
  95   Detect lvm binary path in lvmetad udev rules.
  96   Don't unlink socket on lvmetad shutdown if instantiated from systemd.
  97   Restart lvmetad automatically from systemd if it exits from uncaught signal.
  98   Fix warn msg for thin pool chunk size and update man for chunksize. (2.02.89)
  99
 100 Version 2.02.95 - 6th March 2012
 101 ================================
 102   If unspecified, adjust thin pool metadata and chunk size to fit into 128MB.
 103   Print just warning on thin pool check callback path for failing check.
 104   Always use 64bit arithmetic with VG extent_size expression.
 105   Validate udev structures in _insert_udev_dir().
 106   Take repeatable --major --minor with pvscan --cache instead of major:minor.
 107   Scan all devices for lvmetad if 'pvscan --cache' used without device list.
 108   Populate lvmcache from lvmetad before displaying PVs in pvscan. (2.02.94)
 109   Suppress incorrect -n pvscan warning now always displayed. (2.02.94)
 110
 111 Version 2.02.94 - 3rd March 2012
 112 ================================
 113   Add support to execute thin_check with each de/active of thin pool.
 114   Fix automatic estimation of metadata device size for thin pool.
 115   Test for alloc fail from _alloc_pv_segment() in _extend_pv().
 116   Check for alloc fail from get_segtype_from_string() in _lvcreate_params().
 117   Add _rimage as reserved suffix to lvm.8 man page.
 118   Improve error logging from mpath filter.
 119   Check for allocation failure in hold_lock() in clvmd.
 120   Use set_lv() (wipe initial 4KiB) for non zeroed thin volume.
 121   Allow cluster mirrors to handle the absence of the checkpoint lib (libSaCkpt).
 122   Revert free of allocated segtype in init segment error path (2.02.89).
 123   Test dm_hash_insert() failures in filter-persistent.c and fid_add_mda().
 124   Ensure clvmd message is always NUL-terminated after read.
 125   Add some close() and dev_close() error path backtraces.
 126   Set stdin/stdout/stderr to /dev/null for polldaemon.
 127   Limit the max size of processed clvmd message to ~8KB.
 128   Do not send uninitialised bytes in cluster error reply messages.
 129   Use unsigned type for bitmask instead of enum type for lvm properties.
 130   Add missing cleanup of excl_uuid hash on some exit paths of clvmd.
 131   Check for existence of vg_name in _format1/_pool_vg_read().
 132   Fix missing break in _format_pvsegs (2.02.92).
 133   Test seg pointer for non-null it in raid_target_percent error path.
 134   Check for errors in _init_tags() during config loading.
 135   Always check result of _set_vg_name() in lvcreate.
 136   Drop unused call to uname() during clvmd initialization.
 137   Test allocation result in sysfs filter creation.
 138   Limit sscanf parameters with buffer size in clvmd get_initial_state().
 139   Use const lv pointer for lv_is_active...() functions.
 140   Use same signed numbers in _mirrored_transient_status().
 141   Support 'pvscan --cache' to update lvmetad state from specific PVs.
 142   Provide new metadata daemon for testing with configure --enable-lvmetad .
 143   Integrate client-side lvmetad into build.
 144
 145 Version 2.02.93 - 23rd February 2012
 146 ====================================
 147   Require number of stripes to be greater than parity devices in higher RAID.
 148   Fix allocation code to allow replacement of single RAID 4/5/6 device.
 149   Check all tags and LV names are in a valid form in vg_validate.
 150   Add tmpfiles.d style configuration for lvm2 lock and run directory.
 151   Add configure --with-tmpfilesdir for dir holding volatile-file configuration.
 152   Allow 'lvconvert --repair' to operate on RAID 4/5/6.
 153   Fix build_parallel_areas_from_lv to account correctly for raid parity devices.
 154   Print message when faulty raid devices have been replaced.
 155
 156 Version 2.02.92 - 20th February 2012
 157 ====================================
 158   Read dmeventd monitoring config settings for every lvm command.
 159   For thin devices, initialize monitoring only for thin pools not thin volumes.
 160   Make conversion from a synced 'mirror' to 'raid1' not cause a full resync.
 161   Properly test buffer for unit check in units_to_bytes().
 162   Add configure --with-systemdsystemunitdir.
 163   Add check for allocation failure in _build_matcher().
 164   Add check for rimage name allocation failure in _raid_add_images().
 165   Add check for mda_copy failure in _text_pv_setup().
 166   Add check for _mirrored_init_target failure.
 167   Add free_orphan_vg.
 168   Skip pv/vg_set_fid processing if the fid is same.
 169   Check for foreach loop errors in _vg_read_orphans() (2.02.91).
 170   Clean error paths for format instance creation (2.02.91).
 171   Release vg in error path of _format1_vg_read() instead of just free().
 172   Report allocation failure for allocation of PV structure.
 173   Add clvmd init dependency on dlm service when running with new corosync.
 174
 175 Version 2.02.91 - 12th February 2012
 176 ====================================
 177   Remove PV-based format instances (which are no longer needed).
 178   Link all orphan PVs directly to a per-format global orphan VG.
 179   Refactor lvmcache around an internal API.
 180   Stop processing lvextend if trying to extend a mirror that is being recovered.
 181   Add pool_below_threshold() function to check thin pool percent status.
 182   Fix test for snap percent for failing merge when removing LV.
 183   Switch int to void return for str_list_del().
 184   Fix error path handling in _build_desc().
 185   Add range test for device number in _scan_proc_dev().
 186   Use signed long for sysconf() call in cmirrord.
 187   Do not write in front of log buffer in print_log().
 188   Add boundary test for number of mirror devs and logs.
 189   Check that whole locking_dir fits _lock_dir buffer in init_file_locking().
 190   Use list functions for label_exit().
 191   Ensure strncpy() function always ends with '\0'.
 192   Set status in _fsadm_cmd() for error path.
 193   Add missing deps for lvm2api for rebuild when lvm-internal is changed.
 194   Fix resource leaks for failing allocation of formats (lvm1/2,pool).
 195   Release allocated resources in error path for composite_filter_create().
 196   Do not use lstat() results when failed in _rm_link().
 197   Remove a "waiting for another thread" log message from dmeventd plugins.
 198
 199 Version 2.02.90 - 1st February 2012
 200 ===================================
 201   sync_local_dev_names before (re)activating mirror log for initialisation.
 202   Disable partial activation for thin LVs and LVs with all missing segments.
 203   Do not print warning for pv_min_size between 512KB and 2MB.
 204   Clean up systemd unit ordering and requirements.
 205   Fix lcov reports when srcdir != builddir.
 206   Allow ALLOC_NORMAL to track reserved extents for log and data on same PV.
 207   Automatically detect whether corosync clvmd needs to use confdb or cmap.
 208   Fix data% report for thin volume used as origin for non-thin snapshot.
 209
 210 Version 2.02.89 - 26th January 2012
 211 ===================================
 212   Add missing check for uname result in clvmd TEST processing.
 213   Fix memleak in target_version() error path (unsupported LIST_VERSIONS).
 214   Limit data_alignment and data_alignment_offset to 32bit values.
 215   Check for correctness of uint64 dev_size value in format_text.
 216   Thin pools have segment fields thin_count, zero, transaction_id.
 217   Add data_percent and metadata_percent for thin pools to lvs -v.
 218   Add data_lv & metadata_lv fields to lvs for thin pools.
 219   Add data_percent & pool_lv fields to lvs for thin volumes.
 220   Rename origin_only parm to use_layer for lv_info and use with thin LVs.
 221   Add lv_thin_pool_transaction_id to read the transaction_id value.
 222   Use {suspend,resume}_origin_only when up-converting RAID, as mirrors do.
 223   Always add RAID metadata LVs to deptree (even when origin_only is set).
 224   Change exclusive LV activation logic to try local node before remote nodes.
 225   Add CLVMD_FLAG_REMOTE to skip processing on local node.
 226   Prompt if request is made to remove a snapshot whose "Merge failed".
 227   Allow removal of an invalid snapshot that was to be merged on next activation.
 228   Don't allow a user to merge an invalid snapshot.
 229   Use m and M lv_attr to indicate that a snapshot merge failed in lvs.
 230   Differentiate between snapshot status of "Invalid" and "Merge failed".
 231   Report snapshot usage percent of origin volume when a snapshot is merging.
 232   Require global/lvdisplay_shows_full_device_path for (bogus) lvm1-style paths.
 233   Do not report linear segtype for non-striped targets.
 234   Record creation host & time for each LV and report as lv_time & lv_host.
 235   Make error message hit when preallocated memlock memory exceeded clearer.
 236   Use R lv_attr to indicate read-only activation of non-read-only device in lvs.
 237   Show read-only activation override in lvdisplay & add 4 to perms in -c.
 238   Add activation/read_only_volume_list to override LV permission in metadata.
 239   Give priority to emcpower devices with duplicate PVIDs.
 240   Add check for error in _adjust_policy_params() (lvextend --use-policies).
 241   Round specified percentages upwards (%LV, %VG...) when resizing LVs.
 242   Use dmeventd_lvm2_command in dmeventd plugins snapshot, raid, mirror.
 243   Add helper dmeventd_lvm2_command() to libdevmapper-event-lvm2 library.
 244   Update documentation for dmeventd.
 245   Remove unnecessary stat before opening device in dev_open_flags.
 246   Reduce number of lstat calls when selecting device alias.
 247   Add _dev_init to initialize common struct device members.
 248   Always zalloc struct device during initialization.
 249   Fix missing thread list manipulation protection in dmeventd.
 250   Do not derefence lv pointer in _percent_run() function before NULL check.
 251   Allow empty strings for description and creation_host config fields.
 252   Issue deprecation warning when removing last lvm1-format snapshot.
 253   Reinstate support for snapshot removal with lvm1 format. (2.02.86)
 254   Add policy-based automated repair of RAID logical volumes.
 255   Don't allow two images to be split and tracked from a RAID LV at one time.
 256   Don't allow size change of RAID LV that is tracking changes for a split image.
 257   Don't allow size change of RAID sub-LVs independently.
 258   Don't allow name change of RAID LV that is tracking changes for a split image.
 259   Do not allow users to change the name of RAID sub-LVs independently.
 260   Do not allow users to change permissions on RAID sub-LVs.
 261   Allow lvconvert to replace specified devices in a RAID array.
 262   Add activation/use_linear_target enabled by default.
 263   Use gcc warning options only with .c to .o compilation.
 264   Move y/n prompts to stderr and repeat if response has both 'n' and 'y'.
 265   Replace the unit testing framework with CUnit (--enable-testing).
 266   Fix dmeventd snapshot monitoring when multiple extensions were involved.
 267   Don't ignore configure --mandir and --infodir.
 268   Drop pool memory allocated within lv_has_target_type().
 269   Reduce stack allocation of some PATH_MAX sized char buffers.
 270   Unlock memory before writing metadata.
 271   Add query before removing snapshots when inactive snapshot origin is removed.
 272   Allow changing availability state of snapshots.
 273   Skip non-virtual snapshots for availability change for lvchange with vg name.
 274   Skip adjusting mirror region size unless mirror or raid.
 275   Reorder prompt conditions for removal of active volumes.
 276   Avoid 'mda inconsistency' by properly registering UNLABELLED_PV flag.(2.02.86)
 277   Fix --enable-static_link unless using --enable-dmeventd / --enable-udev_sync.
 278   Move gentoo MAKEDEV to /sbin in lvm2create_initrd.
 279   Add filter to avoid scan of device if it is part of active multipath.
 280   Add missing default $LVM_VG_NAME usage for snapshots.
 281   Avoid extent_count overflow with lvextend.
 282   Add missing lvrename mirrored log recursion in for_each_sub_lv.
 283   Improve lv_extend stack reporting.
 284   Increase virtual segment size instead of creating multiple segment list.
 285   Add last_seg(lv) internal function.
 286   Support empty string for log/prefix.
 287   Disallow mirrored logs for cluster mirrors. (2.02.72)
 288   Don't print char type[8] as a plain string in pvck PV type.
 289   Use vg memory pool implicitly for vg read.
 290   Always use vg memory pool for allocated lv segment.
 291   Remove extra 4kB buffer allocated on stack in print_log().
 292   Make move_lv_segment non-static function and use dm_list function.
 293   Pass exclusive LV locks to all nodes in the cluster.
 294   Improve lvcreate chunksize man page description.
 295   Improve man page style for lvcreate & lvs.
 296   Avoid recursive calls to dmeventd in its LVM plugins.
 297   Log dev name now returned to kernel for registering during cmirror CTR.
 298   Fix lv_info open_count test for disabled verify_udev_operations. (2.02.86)
 299   Simplify code for lvm worker thread in clvmd.
 300   Use pthread_barrier to synchronize clvmd threads at startup.
 301   Limit clvmd's thread size to 128KiB and ignore activation/reserved_stack.
 302   Reduce default preallocated stack size to 64KiB.
 303   Add check for access through NULL pointer when refresh_filter() fails.
 304   Use pthread condition for SINGLENODE lock implementation.
 305   Improve backtrace reporting for some dev_manager_ functions.
 306   Change message severity to log_warn when symlink creation fails.
 307   Add ability to convert mirror segtype to RAID1 segtype.
 308   Add ability to convert from linear to RAID1.
 309   Add ability to extend mirrors with '--nosync' option.
 310   Fix splitmirror LV names to maintain consistent state in a cluster.
 311   Apply appropriate udev flags when suspending/resuming mirror sub-LVs.
 312   Fix vgsplit to handle mirrored logs.
 313   Clarify multi-name device filter pattern matching explanation in lvm.conf.
 314   Introduce revert_lv for better pvmove cleanup.
 315   Replace incomplete pvmove activation failure recovery code with a message.
 316   Abort if _finish_pvmove suspend_lvs fails instead of cleaning up incompletely.
 317   Change suspend_lvs to call vg_revert internally.
 318   Change vg_revert to void and remove superfluous calls after failed vg_commit.
 319   Use execvp for CLVMD restart to preserve environment settings.
 320   Restart CLVMD with same cluster manager.
 321   Fix log_error() usage in raid and unknown segtype initialisation.
 322   Improve testing Makefile.
 323   Fix install_ocf make target when srcdir != builddir. (2.02.80)
 324   Support env vars LVM_CLVMD_BINARY and LVM_BINARY in clvmd.
 325   Fix restart of clvmd (preserve exlusive locks). (2.02.64)
 326   Add 'Volume Type' lv_attr characters for RAID and RAID_IMAGE.
 327   Add activation/retry_deactivation to lvm.conf to retry deactivation of an LV.
 328   Replace open_count check with holders/mounted_fs check on lvremove path.
 329   Disallow the creation of mirrors (mirror or raid1 segtype) with only one leg.
 330   Cleanup restart clvmd code (no memory allocation, debug print passed args).
 331   Add all exclusive locks to clvmd restart option args.
 332   Always send the whole clvmd packet header in refresh commands.
 333   Add missing error checks for some system calls in cmirrord.
 334   Add missing log_error() to lvresize command when fsadm tool fails.
 335   Add support for DM_DEV_DIR device path into fsadm script.
 336   Support different PATH setting for fsadm script testing.
 337   Surround all executed commands with quotes in fsadm script.
 338   Fix missing '$' in test for content of "$LVM" in fsadm script.
 339   Move debug message in exec_cmd after sync_local_dev_names.
 340   Fix clvmd processing of invalid request on local socket.
 341   Fix command line option decoding.
 342   Reset LV status when unlinking LV from VG.
 343   Fix overly-strict extent-count divisibility requirements for striped mirrors.
 344   Fix rounding direction in lvresize when reducing volume size.
 345   Fix possible overflow of size if %FREE or %VG is used.
 346   Fix vgchange activation of snapshot with virtual origin.
 347   Activate virtual snapshot origin exclusively (only on local node in cluster).
 348   Fix lv_mirror_count to handle mirrored stripes properly.
 349   Fix failure to down-convert a mirror to linear due to udev "dev open" conflict
 350   Fix mirrored log creation when PE size is small: use log_size >= region_size.
 351   Fix log size calculation when only a log is being added to a mirror.
 352   Add 7th lv_attr char to show the related kernel target.
 353   Terminate pv_attr field correctly. (2.02.86)
 354   Fix 'not not' typo in pvcreate man page.
 355   Improve man page style for fsadm, lvreduce, lvremove, lvrename & lvresize.
 356   Support break for vgchange and vgrefresh operation.
 357   Switch int to unsigned type for pvmetadatacopies for pv_create().
 358   Replace :space: with [\t ] for awk in vgimportclone (not widely supported).
 359   Begin using 64-bit status field flags.
 360   Detect sscanf recovering_region input error in cmirrord pull_state().
 361   Fix error path bitmap leak in cmirrord import_checkpoint().
 362   Log unlink() error in cmirrord remove_lockfile().
 363   Remove incorrect requirement for -j or -m from lvchange error message.
 364   Fix unsafe table load when splitting off smaller mirror from a larger one.
 365   Use size_t return type for text_vg_export_raw() and export_vg_to_buffer().
 366   Add configure --enable-lvmetad for building the (experimental) LVMetaD.
 367   Fix resource leak when strdup fails in _get_device_status() (2.02.85).
 368   Directly allocate buffer memory in a pvck scan instead of using a mempool.
 369   Add configure --with-thin for segtypes "thin" and "thin_pool".
 370   Fix raid shared lib segtype registration (2.02.87).
 371
 372 Version 2.02.88 - 19th August 2011
 373 ==================================
 374   Remove incorrect 'Breaking' error message from allocation code. (2.02.87)
 375   Add lvconvert --merge support for raid1 devices split with --trackchanges.
 376   Support lvconvert of -m1 raid1 devices to a higher number.
 377   Add --trackchanges support to lvconvert --splitmirrors option for raid1.
 378   Support splitting off a single raid1 rimage in lvconvert --splitmirrors.
 379   Use sync_local_dev_names when reducing number of raid rimages in lvconvert.
 380   Add -V as short form of --virtualsize in lvcreate.
 381   Fix make clean not to remove Makefile.  (2.02.87)
 382
 383 Version 2.02.87 - 12th August 2011
 384 ==================================
 385   Fix make distclean to remove stray dmeventd and exported symbols files.
 386   Add global/detect_internal_vg_cache_corruption to lvm.conf.
 387   Use memory pool locking to check for corruption of internal VG structs.
 388   Cache and share generated VG structs.
 389   Fix possible format instance memory leaks and premature releases in _vg_read.
 390   Suppress locking error messages in monitoring init scripts.
 391   If pipe in clvmd fails return busy instead of using uninitialised descriptors.
 392   Add ability to reduce the number of mirrors in raid1 arrays to lvconvert.
 393   Add dmeventd plugin for raid.
 394   Replace free_vg with release_vg and move it to vg.c.
 395   Remove INCONSISTENT_VG flag from the code.
 396   Remove lock from cache in _lock_vol even if unlock fails.
 397   Initialise clvmd locks before lvm context to avoid open descriptor leaks.
 398   Remove obsolete gulm clvmd cluster locking support.
 399   Suppress low-level locking errors and warnings while using --sysinit.
 400   Remove unused inconsistent_seqno variable in _vg_read().
 401   Remove meaningless const type qualifiers on cast type.
 402   Add test for fcntl error in singlenode client code.
 403   Remove --force option from lvrename manpage.
 404   Add global/mirror_segtype_default to pick md raid or dm mirror as default.
 405   Add configure --with-raid for new segtype 'raid' for MD RAID 1/4/5/6 support.
 406   Change DEFAULT_UDEV_SYNC to 1 so udev_sync is used if there is no config file.
 407   Add systemd unit file to provide lvm2 monitoring.
 408   Compare file size (as well as timestamp) to detect changed config file.
 409
 410 Version 2.02.86 - 8th July 2011
 411 ===============================
 412   Remove unnecessary warning in pvcreate for MD linear devices.
 413   Move snapshot removal activation logic into lib/activate.
 414   Cope with a PV only discovered missing when creating deptree.
 415   Abort operation if dm_tree_node_add_target_area fails.
 416   Add activation/checks to lvm.conf to perform additional ioctl validation.
 417   Always preload on suspend, even if no metadata changed (lvchange --refresh).
 418   When suspending, automatically preload newly-visible existing LVs.
 419   Teardown any stray devices with $COMMON_PREFIX during test runs.
 420   Reinstate correct permissions when creating mirrors. [2.02.85]
 421   Append 'm' attribute to pv_attr for missing PVs.
 422   Annotate CLVMD_CMD_SYNC_NAMES in decode_cmd.
 423   Remove enforcement of udev verification when using non-standard /dev location.
 424   Keep an exclusive mirror non-clustered if reloaded e.g. during conversion.
 425   Reject allocation if number of extents is not divisible by area count.
 426   Fix cluster mirror creation to work with new mirror allocation algorithm.
 427   Ignore activation/verify_udev_operations if dm kernel driver vsn < 4.18.
 428   Add activation/verify_udev_operations to lvm.conf, disabled by default.
 429   Call vg_mark_partial_lvs() before VG structure is returned from the cache.
 430   Remove unused internal flag ACTIVATE_EXCL from the code.
 431   Remove useless test of ACTIVATE_EXCL in lv_add_mirrors() clustered code path.
 432   Add lv_activate_opts structure for activation (replacing activation flags).
 433   Ignore inconsistent pre-commit metadata on MISSING_PV devs while activating.
 434   Add proper udev library context initialization and finalization to liblvm.
 435   Fix last snapshot removal to avoid table reload while a device is suspended.
 436   Use dm_get_suspended_counter in replacement critical_section logic.
 437   Downgrade critical_section errors to debug level until it is moved to libdm.
 438   Fix ignored background polling default in vgchange -ay.
 439   Fix pvmove activation sequences to avoid trapped I/O with multiple LVs.
 440   Annotate critical section debug messages.
 441   Fix reduction of mirrors with striped segments to always align to stripe size.
 442   Validate mirror segments size.
 443   Include lvmetad development code in tree.
 444   Fix extent rounding for striped volumes never to reduce more than requested.
 445   Fix create_temp_name to replace any '/' found in the hostname with '?'.
 446   Always use append to file in lvmdump. selinux policy may ban file truncation.
 447   Propagate test mode to clvmd to skip activation and changes to held locks.
 448   Defer writing PV labels until vg_write.
 449   Store label_sector only in struct physical_volume.
 450   Permit --available with lvcreate so non-snapshot LVs need not be activated.
 451   Report sector containing label in verbose message.
 452   Clarify error message when unable to convert an LV into a snapshot of an LV.
 453   Add and use dev_open_readonly and variations.
 454   Do not log a superfluous stack message when the lv is properly processed.
 455   Do not issue an error message when unable to remove .cache on read-only fs.
 456   Avoid memlock size mismatch by preallocating stdio line buffers.
 457   Rewrite vgreduce --removemissing --force to share lvconvert code.
 458   Reorganize lvconvert --repair code to allow reuse.
 459
 460 Version 2.02.85 - 29th April 2011
 461 =================================
 462   Add new obtain_device_list_from_udev setting to lvm.conf.
 463   Obtain device list from udev by default if LVM2 is compiled with udev support.
 464   Add test for vgimportclone and querying of vgnames with duplicate pvs.
 465   Avoid use of released memory when duplicate PV is found.
 466   Add "devices/issue_discards" to lvm.conf.
 467   Issue discards on lvremove and lvreduce etc. if enabled and supported.
 468   Add seg_pe_ranges and devices fields to liblvm.
 469   Fix incorrect tests for dm_snprintf() failure.
 470   Fix some unmatching sign comparation gcc warnings in the code.
 471   Support lv_extend() on empty LVs.
 472   Avoid regenerating cache content when exported VG buffer is unchanged.
 473   Extend the set of memory regions that are not locked to memory.
 474   Workaround some problems when compiled for valgrind memcheck.
 475   Support controlled quit of the lvm_thread_fn function in clvmd.
 476   Fix reading of unallocated memory in lvm1 format import function.
 477   Replace several strncmp() calls with id_equal().
 478   Fix lvmcache_info transfer to orphan_vginfo in _lvmcache_update_vgname().
 479   Fix -Wold-style-definition gcc warnings.
 480   Rename MIRROR_NOTSYNCED to LV_NOTSYNCED.
 481   Fix _move_lv_segments to handle empty LVs.
 482   Fixes for lvconvert (including --repair) of temporary mirror stacks.
 483   Avoid potential loop when removing mirror images.
 484   Fix mirror removal always to take account of preferences as to which.
 485   Fix MIRRORED flag usage.
 486   Remove error messages issued by device_is_usable when run as non-root.
 487   Add missing \0 for grown debug object in _bitset_with_random_bits().
 488   Fix allocation of system_id buffer in volume_group structure.
 489   Fix readlink usage inside get_primary_dev().
 490   Use format instance mempool where possible and adequate.
 491   Call destroy_instance for any PVs found in VG structure during vg_free call.
 492   Add new free_pv_fid fn and use it throughout to free all attached fids.
 493   Use only vg_set_fid and new pv_set_fid fn to assign the format instance.
 494   Make create_text_context fn static and move it inside create_instance fn.
 495   Add mem and ref_count fields to struct format_instance for own mempool use.
 496   Use new alloc_fid fn for common format instance initialisation.
 497   Optimise _get_token() and _eat_space().
 498   Add _lv_postorder_vg() to improve efficiency for all LVs in VG.
 499   Add gdbinit script for debugging.
 500   Use hash tables to speedup string search in vg_validate().
 501   Refactor allocation of VG structure adding alloc_vg().
 502   Avoid possible endless loop in _free_vginfo when 4 or more VGs have same name.
 503   Use empty string instead of /dev// for LV path when there's no VG.
 504   Don't allocate unused VG mempool in _pvsegs_sub_single.
 505   Do not send uninitialised bytes in local clvmd messages.
 506   Support --help option for clvmd and return error for unknown option.
 507   Avoid reading freed memory when printing LV segment type.
 508   Fix syslog initialisation in clvmd to respect lvm.conf setting.
 509   Fix possible overflow in maximum stripe size and physical extent size.
 510   Improve pvremove error message when PV belongs to a VG.
 511   Extend normal policy to allow mirror logs on same PVs as images if necessary.
 512   Improve cling policy to recognise PVs already used during the transaction.
 513   Improve normal allocation algorithm to include clinging to existing areas.
 514   Add allocation/maximise_cling & mirror_logs_require_separate_pvs to lvm.conf.
 515   Adapt metadata balancing code to work with metadata handling changes.
 516   Add old_id field to physical_volume and fix pvchange -u for recent changes.
 517   Allow pvresize on a PV with two metadata areas.
 518   Change pvcreate to use new metadata handling interface.
 519   Restructure existing pv_setup and pv_write and add pv_initialise.
 520   Add internal interface to support adding and removing metadata areas.
 521   Allow internal indexing of metadata areas (PV id + mda order).
 522   Generalise internal format_instance infrastrusture for PV and VG use.
 523   Handle decimal digits with --units instead of ignoring them silently.
 524   Fix remaining warnings and compile with -Wpointer-arith.
 525   Fix gcc warnings for unused variables and const casts.
 526   Add stack backtraces for error paths in process_each_lv().
 527   Temporarily suppress error from calling yes_no_prompt while locks are held.
 528   Replace void* with char* arithmetic in _text_write, _text_read & send_message.
 529   Fix compilation without DEVMAPPER_SUPPORT.
 530   Remove fs_unlock() from lv_suspend error path.
 531   Allow memory to stay locked between leaving and re-entering critical sections.
 532   Rename memlock to critical_section throughout.
 533   Make pv_min_size configurable and increase to 2048KB to exclude floppy drives.
 534   Add find_config_tree_int64 to read 64-bit ints from config.
 535   Ensure resuming exclusive cluster mirror continues to use local mirror target.
 536   Clear temporary postorder LV status flags to allow re-use with same LV struct.
 537   Remove invalid snapshot umount mesg which floods syslog from dmeventd plugin.
 538   Add extended examples to pvmove man page.
 539   Support LVM_TEST_DEVDIR env var for private /dev during testing.
 540
 541 Version 2.02.84 - 9th February 2011
 542 ===================================
 543   Fix CRC32 calculation on big endian CPU (2.02.75).
 544
 545 Version 2.02.83 - 4th February 2011
 546 ===================================
 547   Allow exclusive activation of snapshots in a cluster.
 548   Leave EX lock unchanged when suspending a device in clvmd.
 549   Use sync_dev_names in unlock_vg macro for cluster-wide dev name sync.
 550   Fix fs operation stack handling when multiple operations on same device.
 551   Increase hash table size to 1024 lv names and 64 pv uuids.
 552   Remove fs_unlock() from lv_resume path.
 553   Fix wipe size when setting up mda.
 554   Remove unneeded checks for open_count in lv_info().
 555   Synchronize with udev before checking open_count in lv_info().
 556   Allow CLVMD_CMD_SYNC_NAMES to be propagated around the cluster if requested.
 557   Add "dmsetup ls --tree" output to lvmdump.
 558   Fix udev synchronization with no-locking --sysinit (2.02.80).
 559   Improve man page style consistency for pvcreate, pvremove, pvresize, pvscan.
 560   Avoid rebuilding of uuid validation table.
 561   Improve lvcreate error text from insufficient "extents" to "free space".
 562   Always use O_DIRECT when opening block devices to check for partitioning.
 563
 564 Version 2.02.82 - 24th January 2011
 565 ===================================
 566   Bring lvscan man page up-to-date.
 567   Fix lvchange --test to exit cleanly.
 568   Add change_tag to toollib.
 569   Allow multiple pvchange command line options to be specified together.
 570   Do not fail pvmove polling if another process cleaned up first.
 571   Avoid clvmd incrementing dlm lockspace reference count more than once.
 572   Add -f (don't fork) option to clvmd and fix clvmd -d<num> description.
 573
 574 Version 2.02.81 - 17th January 2011
 575 ===================================
 576   Do not scan devices in dev_reset_error_count().
 577   Skip unnecessary LOCK_NULL unlock call during volume deactivation.
 578   Skip fs_unlock when calling exec_cmd within activation code (for modprobe).
 579   Extend exec_cmd params to specify when device sync (fs_unlock) is needed.
 580   Replace fs_unlock by sync_local_dev_names to notify local clvmd. (2.02.80)
 581   Introduce sync_local_dev_names and CLVMD_CMD_SYNC_NAMES to issue fs_unlock.
 582   Accept fusion fio in device type filter.
 583   Add ability to convert mirror log type from disk to mirrored.
 584
 585 Version 2.02.80 - 10th January 2011
 586 ===================================
 587   Use same dm cookie for consecutive dm ops in same VG to reduce udev waits.
 588   Speed up command processing by caching resolved config tree.
 589   Pass config_tree to renamed function import_vg_from_config_tree().
 590   Detect NULL handle in get_property().
 591   Fix superfluous /usr in ocf_scriptdir instalation path.
 592   Add --with-ocfdir configurable option.
 593   Add aclocal.m4 (for pkgconfig).
 594   Fix memory leak in persistent filter creation error path.
 595   Check for errors setting up dm_task struct in _setup_task().
 596   Fail polldaemon creation when lvmcache_init() fails.
 597   Return PERCENT_INVALID for errors in _copy_percent() and _snap_percent().
 598   Remove some unused variables.
 599   Improve general lvconvert man page description.
 600   Return 0 from cmirrord initscript 'start' if daemon is already running.
 601   Fix wrongly paired unlocking of VG_GLOBAL in pvchange. (2.02.66)
 602   Add backtraces for backup and backup_remove fail paths.
 603   Detect errors from dm_task_set calls in _get_device_info (dmeventd).
 604   Add backtraces for archive and backup_locally in check_current_backup().
 605   Fix memory leak in debug mode of restart_clvmd() error path.
 606   Log error message for pthread_join() failure in clvmd.
 607
 608 Version 2.02.79 - 20th December 2010
 609 ====================================
 610   Remove some unused variables.
 611   Add missing test for reallocation error in _find_parallel_space().
 612   Add checks for allocation errors in config node cloning.
 613   Fix error path if regex engine cannot be created in _build_matcher().
 614   Use char* arithmetic in target_version(), _process_all() & _targets().
 615   Fixing const cast gcc warnings in the code.
 616   Check read() and close() results in _get_cmdline().
 617   Add const for struct config_node usage.
 618   Fix NULL pointer check in error path in clvmd do_command(). (2.02.78)
 619   Fix device.c #include to ensure 64-bit fopen64 use. (2.02.51)
 620   Add copy_percent and snap_percent to liblvm.
 621   Enhance vg_validate to ensure integrity of LV and PV structs referenced.
 622   Enhance vg_validate to check composition of pvmove LVs.
 623   Create /var/run/lvm directory during clvmd initialisation if missing.
 624   Use new dm_prepare_selinux_context instead of dm_set_selinux_context.
 625   Avoid revalidating the label cache immediately after scanning.
 626   Support scanning for a single VG in independent mdas.
 627   Don't skip full scan when independent mdas are present even if memlock is set.
 628   Set cmd->independent_metadata_areas if metadata/dirs or disk_areas in use.
 629   Cope better with an undefined target_percent operation in _percent_run.
 630   Avoid writing to freed memory in vg_release and rename to free_vg.  (2.02.78)
 631
 632 Version 2.02.78 - 6th December 2010
 633 ===================================
 634   Abort if segment tag allocation fails in pool format _add_stripe_seg.
 635   Abort in _mirrored_transient_status if referenced log/image LV is not active.
 636   Add backtraces for dev_set() and dev_close_immediate() errors in set_lv().
 637   Log any unlink() error in clvmd remove_lockfile().
 638   Log any pipe write() or close() errors in clvmd child_init_signal().
 639   Detect if orphan vginfo was lost from cache before _lvmcache_update_vgname().
 640   Do a full rescan if some device is missing in lvm1 format read_pvs_in_vg.
 641   Add missing check that dm_pool_create succeeded in write_config_node().
 642   Use dm_snprintf in clvmd-command.c to ensure an overlong buffer is truncated.
 643   Don't write to buffer if its reallocation failed in clvmd do_command().
 644   Switch from float to fixed point percentage handling.
 645   Avoid misleading missing PV warnings in vgextend --restoremissing.
 646   Fix memory leak when VG allocation policy in metadata is invalid.
 647   Ignore unrecognised allocation policy found in metadata instead of aborting.
 648   Factor out tag printing into _out_tags and avoid leaking string buffer.
 649   Remove some unused variables & assignments.
 650   Add missing vg_release calls in _vg_read_by_vgid.
 651   Fix debug logging of derived flag LCK_CACHE in clvmd.
 652   Fix test for no system_dir in _init_backup().
 653   Disallow lvconvert ops that both allocate & free supplied PEs in a single cmd.
 654   Fix liblvm seg_size to give bytes not sectors.
 655   Add functions to look up LV/PV by name/uuid to liblvm.
 656   Free cmd_context if fallback to LVM1 fails in lvm2_main().
 657   Free device name buffer in dmsetup parse_loop_device_name() error paths.
 658   Close format lib if init_format_fn fails in _init_formats().
 659   Don't leave /proc/mounts open after dmeventd snapshot event processing.
 660   Fix out-of-scope arg_vgnames use in process_each_lv().
 661   Remove incorrect dm_task_destroy(NULL) from _node_clear_table() error path.
 662   Add missing closedir in _rm_blks after removing stray LVM1 VG files.
 663   Suppress 'No PV label' message when removing several PVs without mdas.
 664   Fix default /etc/lvm permissions to be 0755. (2.02.66)
 665
 666 Version 2.02.77 - 22nd November 2010
 667 ====================================
 668   Allocate a pool for dummy VG in _pvsegs_sub_single.
 669   Add PV and LV segment types and functions to liblvm.
 670   Add set_property functions to liblvm.
 671   Remove tag length restriction and allow / = ! : # & characters.
 672   Support repetition of --addtag and --deltag arguments.
 673   Add infrastructure for specific cmdline arguments to be repeated in groups.
 674   Split the_args cmdline arguments and values into arg_props and arg_values.
 675   Fix fsadm no longer to require '-f' to resize an unmounted filesystem.
 676   Fix fsadm to detect mounted filesystems on older systems. (2.0.75)
 677   Extend cling allocation policy to recognise PV tags (cling_by_tags).
 678   Add allocation/cling_tag_list to lvm.conf.
 679   Regenerate configure with 'autoreconf' for --enable-ocf. (2.02.76)
 680
 681 Version 2.02.76 - 8th November 2010
 682 ===================================
 683   Clarify error messages when activation fails due to activation filter use.
 684   Add pacemaker script VolumeGroup.ocf with configure --enable-ocf.
 685   Import make.tmpl into include/ Makefile.
 686   Fix handling of online filesystem resize (using new fsadm return code).
 687   Add DIAGNOSTICS section to fsadm man page.
 688   Modify fsadm to return different status code for check of mounted filesystem.
 689   Update VG metadata only once in vgchange when making multiple changes.
 690   Allow independent vgchange arguments to be used together.
 691   Automatically unmount invalidated snapshots in dmeventd.
 692   Suppress some superfluous messages from clang static analysis.
 693   Fix a deadlock caused by double close in clvmd.
 694   Fix NULL pointer dereference on too-large MDA error path in _vg_read_raw_area.
 695   Use static for internal _align_chunk() and _new_chunk() from pool-fast.c.
 696   Fix vgchange to process -a, --refresh, --monitor and --poll like lvchange.
 697   Add lvm2app functions to query any pv, vg, or lv property / report field.
 698
 699 Version 2.02.75 - 25th October 2010
 700 ===================================
 701   Annotate more variables and parameters as const.
 702   Fix missing variable initialization in cluster_send() function from cmirrord.
 703   Fix pointer for VG name in _pv_resize_single error code path.
 704   Fix warning for changed alignment requirements for dmeventd read/write func.
 705   Add global/metadata_read_only to use unrepaired metadata in read-only cmds.
 706   Don't take write lock in vgchange --refresh, --poll or --monitor.
 707   Skip dm devices in scan if they contain only error targets or are empty.
 708   Fix strict-aliasing compile warning in partition table scanning.
 709   Fix pthread mutex usage deadlock in clvmd.
 710   Automatically extend snapshots with dmeventd according to policy in lvm.conf.
 711   Add activation/snapshot_autoextend_threshold/percent to lvm.conf.
 712   Fix liblvm2cmd link order to support --as-needed.
 713   Remove dependency on libm by replacing floor() by an integer-based algorithm.
 714   Fix hang when repairing a mirrored-log that had both devs fail.
 715   Convey need for snapshot-merge target in lvconvert error message and man page.
 716   Add devices/disable_after_error_count config to limit access to failing devs.
 717   Give correct error message when creating a too-small snapshot.
 718   Implement vgextend --restoremissing to reinstate missing devs that return.
 719   Make lvconvert respect --yes and --force when converting an inactive log.
 720   Refactor and add 'get' functions for lv properties/fields.
 721   Update script for fsadm testing.
 722   Better support of noninteractive shell execution of fsadm.
 723   Fix usage of --yes flag for ReiserFS resize in fsadm.
 724   Fix detection of mounted filesystems for fsadm when udev is used.
 725   Fix assignment of default value to LVM variable in fsadm.
 726   Fix support for --yes flag for fsadm.
 727   Do not execute lvresize from fsadm --dry-run.
 728   Fix fsadm return error code from user's break action.
 729   Allow CC to be overridden at build time (for 'scan-build make').
 730   Rename 'flags' to 'status' in struct metadata_area.
 731   Avoid segfault by limiting partial mode for lvm1 metadata. (2.02.74)
 732   Use dm_zalloc and dm_pool_zalloc throughout.
 733   Add pv_get_property and create generic internal _get_property function.
 734   Add 'get' functions for pv and vg properties/fields.
 735   Make generic GET_*_PROPERTY_FN macros with secondary macro for vg, pv & lv.
 736   Add tags_format_and_copy() common function and call from _tags_disp.
 737   Add id_format_and_copy() common function and call from _uuid_disp.
 738   Refactor report.c '*_disp' functions to call supporting functions.
 739   Move parts of metadata*.[ch] into new {pv|vg|lv}.[ch] files.
 740   Fix vg_read memory leak with directory-based metadata.
 741   Fix memory leak of config_tree in reinitialization code path.
 742   Fix pool destruction order in dmeventd_lvm2_exit() to avoid leak debug mesg.
 743   Read whole /proc/self/maps file before working with maps entries.
 744   Speed up unquoting of quoted double quotes and backslashes.
 745   Speed up CRC32 calculations by using a larger lookup table.
 746
 747 Version 2.02.74 - 24th September 2010
 748 =====================================
 749   Allow : and @ to be escaped with \ in device names of PVs.
 750   Replace alloca with dm_malloc in _aligned_io to avoid stack corruption.
 751   Fix partial mode operations for lvm1 metadata format.
 752   Track recursive filter iteration to avoid refreshing while in use. (2.02.56)
 753   Revert to old glibc vsnprintf behaviour in emit_to_buffer() to catch overflow.
 754   Allocate buffer for metadata tags dynamically to remove 4k limit.
 755   Add random suffix to archive file names to prevent races when being created.
 756   Reinitialize archive and backup handling on toolcontext refresh.
 757   Make poll_mirror_progress report PROGRESS_CHECK_FAILED if LV is not a mirror.
 758   Like mirrors, don't scan origins if ignore_suspended_devices() is set.
 759   Fix return type qualifier to avoid compiler warning. (2.02.69)
 760   Automatically generate LSB Requires-Start for clvmd init script.
 761   Fix return code of pvmove --abort PV.
 762   Fix pvmove --abort to remove even for empty pvmove LV.
 763   Add configure --with-default-data-alignment.
 764   Update heuristic used for default and detected data alignment.
 765   Add "devices/default_data_alignment" to lvm.conf.
 766   Add implementation for simple numeric 'get' property functions.
 767   Define GET_NUM_PROPERTY_FN macro to simplify numeric property 'get' function
 768   Add properties.[ch] to lib/report using columns.h.
 769   Add macro definitions to report infrastructure for character array length.
 770   Remove explicit double quotes from columns.h 'id' entries.
 771   Add 'flags' field to columns.h and define FIELD_MODIFIABLE.
 772   Add vg_mda_size and vg_mda_free functions.
 773   Simplify MD/swap signature detection in pvcreate and allow aborting.
 774   Allow --yes to be used without --force mode.
 775   Fix file descriptor leak in swap signature detection error path.
 776   Detect and allow abort in pvcreate if LUKS signature is detected.
 777   Always mask lock flags correctly when checking for LCK_WRITE.
 778
 779 Version 2.02.73 - 18th August 2010
 780 ==================================
 781   Fix potential for corruption during cluster mirror device failure.
 782   Use 'SINGLENODE' instead of 'dead' in clvmd singlenode messages.
 783   Ignore snapshots when performing mirror recovery beneath an origin.
 784   Pass LCK_ORIGIN_ONLY flag around cluster.
 785   Add suspend_lv_origin and resume_lv_origin using LCK_ORIGIN_ONLY.
 786   Allow internal suspend and resume of origin without its snapshots.
 787   Fix dev_manager_transient to access -real device not snapshot-origin.
 788   Monitor origin -real device below snapshot instead of overlay device.
 789   Don't really change monitoring status when in test mode.
 790   Fix some exit statuses when starting/stopping monitoring fails.
 791   Enable snapshot monitoring by default when dmeventd is enabled.
 792   Move cloned libdevmapper-event client code from segments into lib/activate.
 793   Fix 'lvconvert --splitmirrors' in cluster operation.
 794   Fix clvmd init script exit code to return 4 when executed as non-root user.
 795   Change default alignment of pe_start to 1MB.
 796   Add --norestorefile option to pvcreate.
 797   Require --restorefile when using pvcreate --uuid.
 798   Recognise and give preference to md device partitions (blkext major).
 799   Never scan internal LVM devices.
 800   Don't ignore user-specified PVs in split-mirror operations. (2.02.71)
 801   Fix data corruption bug in cluster mirrors.
 802   Require logical volume(s) to be explicitly named for lvconvert --merge.
 803   Avoid changing aligned pe_start as a side-effect of very verbose logging.
 804   Use built-in rule for device aliases: block/ < dm- < disk/ < mapper/ < other.
 805   Fix const warning in dev_manager_info() and _dev_manager_lv_rmnodes().
 806   Fix const warning in archive_file structure from archive.c.
 807   Clean generated files .exported_symbols_generated, example.conf for distclean.
 808   Handle failure of all mirrored log devices and all but one mirror leg.
 809   Disallow 'mirrored' log type for cluster mirrors.
 810   Do not use VPATH in include/Makefile.
 811   Fix exported_symbols generation to use standard compiler arguments.
 812   Use #include <> not "" in lvm2app.h which gets installed on the system.
 813   Make lib and liblvm.device-mapper wait for include file generation.
 814   Fix configure to supply DEFAULT_RUN_DIR to Makefiles.
 815   Fix allocation of wrong number of mirror logs with 'remove' fault policy.
 816
 817 Version 2.02.72 - 28th July 2010  [CVE-2010-2526]
 818 =================================================
 819   Change clvmd to communicate with lvm2 via a socket in /var/run/lvm.
 820   Return controlled error if clvmd is run by non-root user.
 821   Add configure --default-run-dir for /var/run/lvm.
 822   Never use clvmd singlenode unless explicitly requested with -Isinglenode.
 823
 824 Version 2.02.71 - 28th July 2010
 825 ================================
 826   Document LVM fault handling in doc/lvm_fault_handling.txt.
 827   Make vgck warn about missing PVs.
 828   Clarify help text for vg_mda_count.
 829   Check if cluster log daemon is running before allowing cmirror create.
 830   Add unit-tests dir.
 831   Add configure --enable-testing and reports and report-generators dirs.
 832   Correct LV list order used by lvconvert when splitting a mirror.
 833   Check if LV with specified name already exists when splitting a mirror.
 834   Fix suspend/resume logic for LVs resulting from splitting a mirror.
 835   Update pvcreate, {pv|vg}change, and lvm.conf man pages about metadataignore.
 836   Switch cmirrord and clvmd to use dm_create_lockfile.
 837   Allow clvmd pidfile to be configurable.
 838   Update comments about memory handling in lvm2app.h.
 839   Add more verbose messages while checking volume_list and hosttags settings.
 840   Add log_error when strdup fails in {vg|lv}_change_tag().
 841   Remove unnecessary includes in liblvm files.
 842   Use __attribute__ consistently throughout.
 843   Fix redundant declarations and always compile with -Wredundant-decls.
 844   Fix possible hang when all mirror images of a mirrored log fail.
 845   Pass metadataignore to pv_create, pv_setup, _mda_setup, and add_mda.
 846   Init mda->list in mda_copy.
 847   Do not log backtrace in valid _lv_resume() code path.
 848   Cleanup help strings in configure.in.
 849   Prompt if metadataignore with vgextend or pvchange would adjust vg_mda_copies.
 850   Adjust vg_mda_copies if metadataignore given with vgextend or pvchange.
 851   Adjust auto-metadata repair and caching logic to try to cope with empty mdas.
 852
 853 Version 2.02.70 - 6th July 2010
 854 ===============================
 855   Remove log directly if all mirror images of a mirrored log fail.
 856   Randomly select which mdas to use or ignore.
 857   Add some missing standard configure.in checks.
 858   Add printf format attributes to yes_no_prompt and fix a caller.
 859   Always pass unsuspended dm devices through persistent filter to other filters.
 860   Move test for suspended dm devices ahead of other filters.
 861   Fix another segfault in clvmd -R if no response from daemon. (2.02.68)
 862   Remove superfluous suspended device counter from clvmd.
 863   Fix lvm shell crash when input is entirely whitespace.
 864   Update partial mode warning message.
 865   Preserve memlock balance in clvmd when activation triggers a resume.
 866   Restore the removemissing behaviour of lvconvert --repair --use-policies.
 867
 868 Version 2.02.69 - 30th June 2010
 869 ================================
 870   Fix vgremove to allow removal of VG with missing PVs. (2.02.52)
 871   Add metadata/vgmetadatacopies to lvm.conf.
 872   Add --metadataignore to pvcreate and vgextend.
 873   Add vg_mda_copies, pv_mda_used_count and vg_mda_used_count to reports.
 874   Describe --vgmetadatacopies in lvm.conf and other man pages.
 875   Add --[vg]metadatacopies to select number of mdas to use in a VG.
 876   Make the metadata ignore bit control read/write metadata areas in a PV.
 877   Add pvchange --metadataignore to set or clear a metadata ignore bit.
 878   Refactor metadata code to prepare for --metadataignore / --vgmetadatacopies.
 879   Ensure region_size of mirrored log does not exceed its full size.
 880   Generate liblvm2app exported symbols from header file.
 881   Preload libc locale messages to prevent reading it in memory locked state.
 882   Fix handling of simultaneous mirror image and mirrored log image failure.
 883
 884 Version 2.02.68 - 23rd June 2010
 885 ================================
 886   Fix clvmd initscript status to print only active clustered LVs.
 887   Add lv_path to reports to offer full /dev pathname.
 888   Fix typo in warning message about missing device with allocated data areas.
 889   Add device name and offset to raw_read_mda_header error messages.
 890   Honour log argument when down-converting stacked mirror.
 891   Sleep to workaround clvmd -S race: socket closed early and server drops cmd.
 892   Use early udev synchronisation and update of dev nodes for clustered mirrors.
 893   Remove incorrect inclusion of kdev_t.h from cmirrord/functions.h.
 894   Add man pages for lvmconf and non-existent lvmsadc and lvmsar tools.
 895   Exit successfully when using -o help (but not -o +help) with LVM reports.
 896   Do not use internal DLM lock definitions in generic LVM2 clvmd code.
 897   Add --force, --nofsck and --resizefs to lvresize/extend/reduce man pages.
 898   Fix lvm2cmd example in documentation.
 899   Allow use of lvm2app and lvm2cmd headers in C++ code.
 900   Remove unused #includes from clvmd files and introduce clvmd-common.h.
 901   Move common inclusions to clvmd-common.h.
 902   Use #include "" for libdevmapper.h and configure.h throughout tree.
 903   Fix LVM_PATH expansion when exec_prefix=NONE. (2.02.67)
 904   Fix segfault in clvmd -R if no response from daemon received.
 905
 906 Version 2.02.67 - 4th June 2010
 907 ===============================
 908   Handle failed restart of clvmd using -S switch properly.
 909   Fix clvmd initscript restart command to start clvmd if not yet running.
 910   Use built-in absolute paths in clvmd (clvmd restart and PV and LV queries).
 911   Require partial option in lvchange --refresh for partial LVs.
 912   Do not fail lvm_init() if init_logging() or _init_rand() generates an errno.
 913   Don't merge unchanged persistent cache file before dumping if tool scanned.
 914   Fix incorrect memory pool deallocation while using vg_read for files.
 915   Add --type parameter description to the lvcreate man page.
 916   Replace strncmp kernel version number checks with proper ones.
 917   Avoid selecting names under /dev/block if there is an alternative.
 918   Update clustered log kernel module name to log-userspace for 2.6.31 onwards.
 919   Add replicators' LVs to dtree for activation.
 920   Supress activation message if there is a missing replicator VG.
 921   Fix scripts/relpath.awk to work in mawk
 922   Extend lock_vol to check for missing replicator VGs first.
 923   Update _process_one_vg and process_each_lv_in_vg to populate cmd_vg.
 924   Add cmd_vg structure and associated functions for replicator.
 925   Extend _lv_each_dependency() to handle replicator dependencies.
 926   Add check_replicator_segment() to catch internal replicator errors.
 927   Initial support for replicator metadata.
 928   Extend process_each_lv_in_vg() to provide list of failed lvnames.
 929   Consistently return ECMD_FAILED if process_each_*lv() is interrupted.
 930
 931 Version 2.02.66 - 20th May 2010
 932 ===============================
 933   If unable to obtain snapshot percentage leave value blank on reports.
 934   Add install_system_dirs and install_initscripts makefile targets.
 935   Add configure options for system and locking directories.
 936   Generate example.conf so default lvm.conf contents can be configured.
 937   Install lvmconf script by default.
 938   Remove unnecessary versioned dmeventd plugin symlinks.
 939   Add tests for lvm_vgname_from_{pvid|device}.
 940   Add lvm2app interfaces to lookup a vgname from a pvid and pvname.
 941   Update pvchange to always obtain a vg handle for each pv to process.
 942   Add find_vgname_from_{pvname|pvid} functions.
 943   Add pvid_from_devname and lvmcache_vgname_from_pvid lvmcache functions.
 944   Validate orphan and VG_GLOBAL lock order too.
 945   Accept orphan VG names as parameters to lock_vol() and related functions.
 946   Use is_orphan_vg in place of hard-coded prefix tests and add is_global_vg.
 947
 948 Version 2.02.65 - 17th May 2010
 949 ===============================
 950   Fix clvmd init script never to deactivate non-clustered volume groups.
 951   Disallow vgchange --clustered if there are active mirrors or snapshots.
 952   Introduce lv_is_mirrored.
 953   Use /bin/bash for scripts with bashisms.
 954   Skip internal lvm devices in scan if ignore_suspended_devices is set.
 955   Do not merge old device cache after we run full scan. (2.02.56)
 956   Add pkgconfigdir Makefile variable for make install override.
 957   Configure pkgconfig udev and selinux dependencies.
 958   Switch Libs.private to Requires.private in devmapper.pc and lvm2app.pc.
 959   Use pkgconfig Requires.private for devmapper-event.pc.
 960   Add libdevmapper to linked libdevmapper-event.so.
 961   Link liblvm2cmd.so with libdevmapper-event and libdevmapper.
 962   Fix truncated total size displayed by pvscan.
 963   Add new --sysinit compound option to vgchange and lvchange.
 964   Drop duplicate errors for read failures and missing devices to verbose level.
 965   Use $(libdir)/lvm2 with make install_lvm2_plugin.
 966   Use $(libdir)/device-mapper with make install_dm_plugin.
 967   Add dm_list_splice() function to join two lists together.
 968
 969 Version 2.02.64 - 30th April 2010
 970 =================================
 971   Avoid pointless initialisation when the 'version' command is run directly.
 972   Fix memory leak for invalid regex pattern input.
 973   Display invalid regex pattern for filter configuration in case of error.
 974   Remove no-longer-used arg_ptr_value.
 975   Fix -M and --type to use strings, not pointers that change on config refresh.
 976   Fix lvconvert error message when existing mirrored LV is not found.
 977   Set appropriate udev flags for reserved LVs.
 978   Disallow the direct removal of a merging snapshot.
 979   Don't preload the origin when removing a snapshot whose merge is pending.
 980   Disallow the addition of mirror images while a conversion is happening.
 981   Disallow primary mirror image removal when mirror is not in-sync.
 982   Remove obsolete --name parameter from vgcfgrestore.
 983   Add -S command to clvmd to restart the daemon preserving exclusive locks.
 984   Increment lvm2app version from 1 to 2 (memory allocation changes).
 985   Change lvm2app memory alloc/free for pv/vg/lv properties.
 986   Change daemon lock filename from lvm2_monitor to lvm2-monitor for consistency.
 987   Install symbolic .so links with relative paths between usrlibdir and libdir.
 988   Add awk script relpath.awk to calculate paths for relative symlinks.
 989   Use @AWK@ in makefiles.
 990   Fix double DESTDIR usage for infodir and mandir.
 991
 992 Version 2.02.63 - 14th April 2010
 993 =================================
 994   Rename lvm_dump.sh to lvmdump.sh.
 995   Allow incomplete mirror restore in lvconvert --repair upon insufficient space.
 996   Do not reset position in metadata ring buffer on vgrename and vgcfgrestore.
 997   Allow VGs with active LVs to be renamed.
 998   Use UUIDs instead of names while processing event handlers.
 999   Only pass visible LVs to tools in cmdline VG name/tag expansions without -a.
1000   Use typedefs for toollib process_each functions.
1001   Use C locales and use_mlockall for clvmd.
1002   Refactor code related to vg->pvs list and add pv->vg link.
1003   Mask LCK_HOLD flag in cluster VG locks for backwards compatibility.
1004   Add activation/polling_interval to lvm.conf as --interval default.
1005   Don't ignore error if resuming any LV fails in resume_lvs.
1006   Skip closing persistent filter cache file if open failed.
1007   Install .a and .so links into $(usrlibdir).
1008   Add --enable-write_install options to install user-writable files.
1009   Use INSTALL_PROGRAM/DATA/WDATA target.
1010   Switch from using VPATH  to vpath in Makefiles.
1011   Permit mimage LVs to be striped in lvcreate, lvresize and lvconvert.
1012   Fix pvmove allocation to take existing parallel stripes into account.
1013   Add pvmove_source_seg to struct lv_segment.
1014   Fix incorrect removal of symlinks after LV deactivation fails.
1015   Fix is_partitioned_dev not to attempt to reopen device.
1016   Fix another thread race in clvmd.
1017   Refactor management of vg->pvs list.
1018   Fix lcov rules and generate better coverage report.
1019   Improve vg_validate to detect some loops in lists.
1020   Change most remaining log_error WARNING messages to log_warn.
1021   Always use blocking lock for VGs and orphan locks.
1022   Allocate all memory for segments from private VG mempool.
1023   Return newly allocated PV segment after segment split.
1024   Optimise searching PV segments for seeking the most recently-added.
1025   Remove vg_validate call when parsing cached metadata.
1026   Use hash table of LVs to speed up parsing of text metadata with many LVs.
1027   Fix two vg_validate messages, adding whitespace and parentheses.
1028   When dmeventd is not forking because of -d flag, don't kill parent process.
1029   Fix 'make install' when $(builddir) is different from $(srcdir).
1030   Fix dso resource leak in error path of dmeventd.
1031   Use C locales and use_mlockall for dmeventd.
1032   Fix --alloc contiguous policy only to allocate one set of parallel areas.
1033   Do not allow {vg|lv}change --ignoremonitoring if on clustered VG.
1034   Improved dependency tracking for dmeventd and liblvm2cmd sources.
1035   Improved Makefile rules for distclean and cflow targets.
1036   Add ability to create mirrored logs for mirror LVs.
1037   Fix clvmd cluster propagation of dmeventd monitoring mode.
1038   Allow ALLOC_ANYWHERE to split contiguous areas.
1039   Use INTERNAL_ERROR for internal errors throughout tree.
1040   Add some assertions to allocation code.
1041   Introduce pv_area_used into allocation algorithm and add debug messages.
1042   Add activation/monitoring to lvm.conf.
1043   Add --monitor and --ignoremonitoring to lvcreate.
1044   Allow dynamic extension of array of areas selected as allocation candidates.
1045   Export and use only valid cookie value in test suite.
1046   Remove const modifier for struct volume_group* from process_each_lv_in_vg().
1047   Don't allow resizing of internal logical volumes.
1048   Fix libdevmapper-event pkgconfig version string to match libdevmapper.
1049   Avoid scanning all pvs in the system if operating on a device with mdas.
1050   Add configure --with-clvmd=singlenode to use clvmd w/o cluster infrastructure.
1051   Get stacktrace if testsuite test drops core and lvm was built with debugging.
1052   Disable long living process flag in lvm2app.
1053   Fix pvcreate device md filter check.
1054   Suppress repeated errors about the same missing PV uuids.
1055   Bypass full device scans when using internally-cached VG metadata.
1056   Only do one full device scan during each read of text format metadata.
1057   Remove unnecessary full_scan parameter from get_vgids and get_vgnames calls.
1058   Look up missing PVs by uuid not dev_name in _pvs_single to avoid invalid stat.
1059   Make find_pv_in_vg_by_uuid() return same type as related functions.
1060   Introduce is_missing_pv().
1061   Fix clvmd Makefile to not overwrite LIBS from template definition.
1062
1063 Version 2.02.62 - 9th March 2010
1064 ================================
1065   Add use_mlockall and mlock_filter to activation section of lvm.conf.
1066   Add default alternative to mlockall using mlock to reduce pinned memory size.
1067   Remove -rdynamic from static builds.
1068   Update checks for pthread, readline & selinux libs and link only when needed.
1069   Introduce makefile vars UDEV_LIBS, DL_LIBS, SELINUX_LIBS, STATIC_LIBS.
1070   Introduce makefile vars LVMINTERNAL_LIBS, READLINE_LIBS, PTHREAD_LIBS.
1071   Toggle configure help to print --disable-fsadm.
1072   Use $() instead of ${} consistently for all Makefile variables.
1073   Replace CFLOW_CMD only in make.tmpl and use it as variable elsewhere.
1074   Use $(top_builddir) for inclusion of make.tmpl in Makefiles.
1075   Fix autoconf warning about ignored datarootdir.
1076   Increase AC_PREREQ version to 2.61 (for AC_PROC_SED, AC_PROG_MKDIR_P).
1077   Handle misaligned devices that report alignment_offset of -1.
1078   Extend core allocation code in preparation for mirrored log areas.
1079   Rewrite clvmd init script.
1080   Remove lvs_in_vg_activated_by_uuid_only call.
1081   No longer fall back to looking up active devices by name if uuid not found.
1082   Don't touch /dev in vgmknodes if activation is disabled.
1083   Update lvm2app.h Doxygen comments and add lvm2app Doxygen config file.
1084   Update nightly tests and lvm2app unit tests to cover tags.
1085   Add lvm2app functions lvm_{vg|lv}_{get|add|remove}_tag() functions.
1086   Add dm_pool_strdup to allocate and copy memory in tag library function.
1087   Refactor vgcreate, vgchange, and lvchange for tag library function.
1088   Refactor snapshot-merge deptree and device removal to support info-by-uuid.
1089
1090 Version 2.02.61 - 15th February 2010
1091 ====================================
1092   Fix some consts and floating point gcc warnings.
1093   Fix dm_report_field_uint64 function to accept 64-bit ints.
1094   Change readhead display to use 32-bit -1 const instead of 64-bit.
1095   Add LVM_SUPPRESS_LOCKING_FAILURE_MESSAGES environment variable.
1096   Remove hard-coding that skipped _mimage devices from 11-dm-lvm.rules.
1097   Use udev transactions in test suite.
1098   Set udev state automatically instead of using LVM_UDEV_DISABLE_CHECKING.
1099   Add lvm_pv_get_size, lvm_pv_get_free and lvm_pv_get_dev_size to lvm2app.
1100   Change lvm2app to return all sizes in bytes as documented (not sectors).
1101   Add 'fail_if_percent_unsupported' arg to _percent and _percent_run.
1102   Remove false "failed to find tree node" error when activating merging origin.
1103   Exit with success when lvconvert --repair --use-policies performs no action.
1104   Accept a list of LVs with 'lvconvert --merge @tag' using process_each_lv.
1105   Avoid unnecessary second resync when adding mimage to core-logged mirror.
1106   Exclude internal VG names and uuids from lists returned through lvm2app.
1107   Add %ORIGIN support to lv{create,extend,reduce,resize} --extents.
1108   Add _mda_copy to clone a struct metadata_area.
1109   Remove pointless versioned symlinks to dmeventd plugin libraries.
1110   Fix dmeventd snapshot plugin build dependency.
1111   Make clvmd -V return status zero.
1112   Remove unnecessary 'dmsetup resume' following 'dmsetup create' in tests.
1113   Fix cmirrord segfault in clog_cpg list processing when converting mirror log.
1114   Deactivate temporary pvmove mirror cluster-wide when activating it fails.
1115   Always query device by uuid and not name in clvmd.
1116   Add missing metadata vg_reverts in pvmove error paths.
1117   Unlock shared lock in clvmd if activation calls fail.
1118   Return success from dev_manager_info with non-existent uuid if ioctl succeeds.
1119
1120 Version 2.02.60 - 23rd January 2010
1121 ===================================
1122   Extend cmirrord man page.
1123   Sleep before first progress check if pvmove/lvconvert interval has prefix '+'.
1124   Default to checking progress before waiting in _wait_for_single_lv.
1125   Fix cmirror initscript (including syntax error).
1126   Eliminate avoidable ioctls for checking open_count in _add_new_lv_to_dtree.
1127   Disable memory debugging if dmeventd is configured. (Not thread-safe.)
1128   Fix first log message prefix in syslog for dmeventd plugins.
1129   Fix exported symbols names for dmeventd lvm2 wrapper plugin.
1130   Make failed locking initialisation messages more descriptive.
1131
1132 Version 2.02.59 - 21st January 2010
1133 ===================================
1134   Add libdevmapper-event-lvm2.so to serialise dmeventd plugin liblvm2cmd use.
1135   Cleanup memory initialization and freeing in pv_read() and pv_create().
1136   Clear pointer and counters after their release in _fin_commands().
1137   Stop dmeventd trying to access already-removed snapshots.
1138   Remove (fallback) /dev mknod from cmirrord.
1139   Add t-topology-support.sh and t-snapshot-merge.sh tests.
1140   Fix clvmd to never scan suspended devices.
1141   Fix dmeventd build outside source tree.
1142   Assorted cmirror code changes to remove various compiler warnings.
1143   Fix detection of completed snapshot merge.
1144   Add Red Hat cmirror initscript (unfinished).
1145   Add cmirrord man page (incomplete).
1146   Make cluster log communication structures architecture independant.
1147   Fix cluster log in-memory bitmap handling.
1148   Improve snapshot merge metadata import validation.
1149   Improve target type compatibility checking in _percent_run().
1150   Add 'target_status_compatible' method to 'struct segtype_handler'.
1151   Change underscore to hyphen in table line for clustered log type.
1152
1153 Version 2.02.58 - 14th January 2010
1154 ===================================
1155   Cleanup some minor gcc warnings.
1156   Add --merge to lvconvert to merge a snapshot into its origin.
1157   Fix clvmd automatic target module loading crash (no reset_locking fn).
1158   Fix allocation code not to stop at the first area of a PV that fits.
1159
1160 Version 2.02.57 - 12th January 2010
1161 ===================================
1162   Ensure exactly one process returns from poll_daemon(), never two.
1163   Reset _vgs_locked in lvmcache_init() in child after forking.
1164   Define {DM, LVM}_UDEV_DISABLE_CHECKING=1 environment variables during tests.
1165   Enable udev_sync and udev_rules in lvm.conf by default while running tests.
1166   If LVM_UDEV_DISABLE_CHECKING in set in environment, disable udev warnings.
1167   Add --splitmirrors to lvconvert to split off part of a mirror.
1168   Change background polldaemon's process name to "(lvm2)".
1169   Allow vgremove to remove a VG with PVs missing after a prompt.
1170   Return success in lvconvert --repair --use-policies on failed allocation.
1171   Keep log type consistent when changing mirror image count.
1172   Always set environment variables for an LVM2 device in 11-dm-lvm.rules.
1173   Add activation/udev_rules config option in lvm.conf.
1174   Add consts to text metadata flag structs.
1175   Add macros outfc, outsize, outhint and function out_text_with_comment.
1176   Reimplement report FIELD macro using offsetof instead of static structs.
1177   Fix fsadm man page typo (fsdam).
1178   Rename mirror_device_fault_policy to mirror_image_fault policy.
1179   Remove empty PV devices if lvconvert --repair is using defined policies.
1180   Use fixed buffer to prevent stack overflow in persistent filter dump.
1181   Use extended status of new kernel snapshot target 1.8.0 to detect when empty.
1182   Insert stack macros in suspend_lv, resume_lv & (de)activate_lv callers.
1183   Add --poll flag to vgchange and lvchange to control background daemon launch.
1184   Propagate metadata commit and revert notifications to other cluster nodes.
1185   Use proper mask for VG lock mode in clvmd.
1186   Allow precommitted metadata to be dropped from lvmcache.
1187   Move processing of VG locks to separate function in clvmd.
1188   Properly decode all flags in clvmd messages including VG locks.
1189   Properly handle precommitted cache flag when only committed metadata present.
1190   Resume renamed volumes in reverse order to preserve memlock pairing.
1191   Drop cached metadata after device was auto-repaired and removed from VG.
1192   Clear MISSING_PV flag if PV reappeared and is empty.
1193   Fix removal of multiple devices from a mirror.
1194   Also clean up PVs flagged as missing in vgreduce --removemissing --force.
1195   Introduce INTERNAL_ERROR macro for error messages and use throughout.
1196   Remove superfluous returns from void functions.
1197   Destroy allocated mempool in _vg_read_orphans() error path.
1198   Fix some pvresize and toollib error paths with missing VG releases/unlocks.
1199   Explicitly call suspend for temporary mirror layer.
1200   Allow use of precommitted metadata when a PV is missing.
1201   Add memlock information to do_lock_lv debug output.
1202   Always bypass calls to remote cluster nodes for non-clustered VGs.
1203   Permit implicit cluster lock conversion in pre/post callbacks on local node.
1204   Permit implicit cluster lock conversion to the lock mode already held.
1205   Fix lock flag masking in clvmd so intended code paths get invoked.
1206   Replace magic masks in cluster locking code by defined masks.
1207   Remove newly-created mirror log from metadata if initial deactivation fails.
1208   Correct activated or deactivated text in vgchange summary message.
1209   Improve pvmove error message when all source LVs are skipped.
1210   Fix memlock imbalance in lv_suspend if already suspended.
1211   Fix pvmove test mode not to poll (and fail).
1212   Fix vgcreate error message if VG already exists.
1213   Fix tools to use log_error when aborted due to user response to prompt.
1214   Fix ignored readahead setting in lvcreate --readahead.
1215   Fix clvmd memory leak in lv_info_by_lvid by calling release_vg.
1216   If aborting due to internal error, always send that message to stderr.
1217   Add global/abort_on_internal_errors to lvm.conf to assist testing.
1218   Fix test Makefiles when builddir and srcdir differ.
1219   Impose limit of 8 mirror images to match the in-kernel kcopyd restriction.
1220   Use locking_type 3 (compiled in) for lvmconf --enable-cluster.
1221   Remove list.c and list.h with no-longer-used dm_list macros and functions.
1222   Log failure type and recognise type 'F' (flush) in dmeventd mirror plugin.
1223   Extend internal PV/VG/LV/segment status variables from 32-bit to 64-bit.
1224
1225 Version 2.02.56 - 24th November 2009
1226 ====================================
1227   Add missing vg_release to pvs and pvdisplay to fix memory leak.
1228   Do not try to unlock VG which is not locked in _process_one_vg.
1229   Move is_long_lived persistent_filter_dump to happen after every full scan.
1230   Refresh device filters before full device rescan in lvmcache.
1231   Return error status if vgchange fails to activate some volume.
1232   Fix suspend/resume lock type test causing unbalanced memory locking.
1233   Revert vg_read_internal change as clvmd was not ready for vg_read. (2.02.55)
1234
1235 Version 2.02.55 - 19th November 2009
1236 ====================================
1237   Fix deadlock when changing mirrors due to unpaired memlock refcount changes.
1238   Use separate memlock counter for dmeventd handlers to permit device scanning.
1239   Directly restrict vgchange to activating visible LVs.
1240   Fix pvmove region_size overflow for very large PVs.
1241   Fix lvcreate and lvresize %PVS argument always to use sensible total size.
1242   Tidy some uses of arg_count and introduce arg_is_set.
1243   Export outnl and indent functions for modules.
1244   Flush stdout after yes/no prompt.
1245   Update vgsplit and vgcreate to use vg_set_clustered.
1246   Add vg_mda_count and vg_set_clustered library functions.
1247   Add more vgcreate and vgsplit nightly tests.
1248   Insert some missing stack macros into activation code.
1249   Recognise DRBD devices and handle them like md devices.
1250
1251 Version 2.02.54 - 26th October 2009
1252 ===================================
1253   Update lvcreate/lvconvert man pages to explain PhysicalVolume parameter.
1254   Document --all option in man pages, cleanup {pv|vg|lv}{s|display} man pages.
1255   Permit snapshots of mirrors.
1256   Cleanup mimagetmp LV if allocation fails for new lvconvert mimage.
1257   Fix clvmd segfault when refresh_toolcontext fails.
1258   Remember to clear 'global lock held during cache refresh' state after use.
1259   Use udev flags support in LVM and apply various fixes to udev rules.
1260   Delay announcing mirror monitoring to syslog until initialisation succeeded.
1261   Handle metadata with unknown segment types more gracefully.
1262   Set default owner and group to null.
1263   Add dmeventd.static to the build.
1264   Disable realtime support code by default.
1265   Make clvmd return 0 on success rather than 1.
1266   Add --pvmetadatacopies for pvcreate, vgcreate, vgextend, vgconvert.
1267   Add implict pvcreate support to vgcreate and vgextend.
1268   Correct example.conf to indicate that lvm2 not lvm1 is the default format.
1269   Remove an unused stray LVM1_SUPPORT ifdef.
1270   Only include selinux libs in libdevmapper.pc when selinux build enabled.
1271   Allow for a build directory separate from the source.
1272   Update distclean target for rename clogd to cmirrord. (2.02.52)
1273   Only do lock conversions in clvmd if we are explicitly asked for one.
1274   Introduce percent_range_t and centralise snapshot full/mirror in-sync checks.
1275   Factor out poll_mirror_progress and introduce progress_t.
1276   Distinguish between powers of 1000 and powers of 1024 in unit suffixes.
1277   Restart lvconverts in vgchange by sharing lv_spawn_background_polling.
1278   Generalise polldaemon code by changing mirror-specific variable names.
1279   Don't attempt to deactivate an LV if any of its snapshots are in use.
1280   Return error if lv_deactivate fails to remove device from kernel.
1281   Provide alternative implementation of obsolete siginterrupt().
1282   Consolidate LV allocation into alloc_lv().
1283   Treat input units of both 's' and 'S' as 512-byte sectors.  (2.02.49)
1284   Use standard output units for 'PE Size' and 'Stripe size' in pv/lvdisplay.
1285   Add configure --enable-units-compat to set si_unit_consistency off by default.
1286   Add global/si_unit_consistency to enable cleaned-up use of units in output.
1287
1288 Version 2.02.53 - 25th September 2009
1289 =====================================
1290   Create any directories in /dev with DM_DEV_DIR_UMASK (022).
1291   Enable dmeventd monitoring section of config file by default.
1292   Update lvm2 monitoring script to lvm2_monitoring_init_red_hat.in.
1293   Fix lvm2app test to run under test/api subdirectory only when configured.
1294   Add vg_is_resizeable() and cleanup reference to VG_RESIZEABLE.
1295
1296 Version 2.02.52 - 15th September 2009
1297 =====================================
1298   Update _process_one_vg to cleanup properly after vg_read_error.
1299   Add lots of missing stack debug messages to tools.
1300   Make readonly locking available as locking type 4.
1301   Fix readonly locking to permit writeable global locks (for vgscan). (2.02.49)
1302   Add DM_UDEV_RULES_VSN environment variable to udev rules.
1303   Update vgsplit, vgmerge, and vgrename to obey new vgname ordering rules.
1304   Make lvm2app pv_t, lv_t, vg_t handle definitions consistent with lvm_t.
1305   Enforce an alphabetical lock ordering on vgname locking.
1306   Prioritise write locks over read locks by default for file locking.
1307   Add local lock files with suffix ':aux' to serialise locking requests.
1308   Fix global locking in PV reporting commands (2.02.49).
1309   Fix pvcreate string termination in duplicate uuid warning message.
1310   Don't loop reading sysfs with pvcreate on a non-blkext partition (2.02.51).
1311   Fix vgcfgrestore error paths when locking fails (2.02.49).
1312   Update Makefile distclean target.
1313   Add libudev configuration check.
1314   Make clvmd check corosync to see what cluster interface it should use.
1315   Add clvmd autodetection check and cleanup related configure messages.
1316   Rewrite clvmd configuration code to cope with all combinations of libs.
1317   Added configure --enable-cmirrord to build the cluster mirror log daemon.
1318   Rename clogd to cmirrord.
1319   Make lvchange --refresh only take a read lock on volume group.
1320   Fix race where non-blocking file locks could be granted in error.
1321   Fix vgextend error path - if ORPHAN lock fails, unlock / release vg (2.02.49).
1322   Fix compile warning in clvmd.
1323   Clarify use of PE ranges in lv{convert|create|extend|resize} man pages.
1324   Remove useless _pv_write wrapper.
1325   Add lvm2app.sh to tests conditional upon configure --enable-applib.
1326   Add lvm_vg_is_clustered, lvm_vg_is_exported, and lvm_vg_is_partial.
1327   Update lvm_vg_remove to require lvm_vg_write to commit remove to disk.
1328   Update test/api/test.c to call lvm_vg_create and lvm_vg_remove.
1329
1330 Version 2.02.51 - 6th August 2009
1331 =================================
1332   Fix locking in clvmd (2.02.50).
1333   Add --noudevsync option for relevant LVM tools.
1334   Add activation/udev_sync to lvm.conf.
1335   Only change LV symlinks on ACTIVATE not PRELOAD.
1336   Make lvconvert honour log mirror options combined with downconversion.
1337   Allow LV suspend while --ignorelockingfailure is in force.
1338   Update synopsis in lvconvert manpage to mention --repair.
1339   Set cookies in activation code and wait for udev to complete processing.
1340   Added configure --enable-udev_rules --enable-udev_sync.
1341   Added configure --with-udev-prefix --with-udevdir.
1342   Added udev dir to hold udev rules.
1343   Add devices/data_alignment_detection to lvm.conf.
1344   Add devices/data_alignment_offset_detection to lvm.conf.
1345   Add --dataalignmentoffset to pvcreate to shift start of aligned data area.
1346   Fix _mda_setup() to not check first mda's size before pe_align rounding.
1347   Document -I option of clvmd in the man page.
1348   Fix configure script to handle multiple clvmd selections.
1349   Fix lvm2app.pc installation filename.
1350   Remove pv_t, vg_t & lv_t handles from lib.  Only liblvm uses them.
1351   Rename lvm.h to lvm2app.h for now.
1352
1353 Version 2.02.50 - 28th July 2009
1354 ================================
1355   Change test/api/test.c prompt so it's not confused with the main lvm prompt.
1356   Update liblvm unit tests in test/api to cover latest liblvm changes.
1357   Add unimplemented lvm_lv_resize and lvm_pv_resize skeletons to liblvm.
1358   Add lvm_library_get_version to liblvm.
1359   Add lvm_config_override to liblvm to allow caller to override LVM config.
1360   Add lvm_lv_is_active and lvm_lv_is_suspended to liblvm.
1361   Add lvm_lv_activate and lvm_lv_deactivate to liblvm.
1362   Add lvm_scan, lvm_vg_reduce and lvm_vg_remove_lv to liblvm.
1363   Add functions to get numeric properties to liblvm.
1364   Add lvm_{pv|vg|lv}_get_{name|uuid} to liblvm.
1365   Add lvm_vg_list_pvs and lvm_vg_list_lvs to liblvm.
1366   Add lvm_vg_open and lvm_vg_create_lv_linear to liblvm.
1367   Add lvm_list_vg_names/uuids to liblvm.
1368   Add lvm_errno and lvm_errmsg to liblvm to obtain failure information.
1369   Rename lvm_create/destroy to lvm_init/quit.
1370   Rename lvm_reload_config to lvm_config_reload.
1371   Refactor _override_settings to use new override_config_tree_from_string.
1372   Add vg_reduce to metadata.c and metadata-exported.h.
1373   Update lvm.h to clarify API behavior and return codes.
1374   Update lvm_vg_extend to do an implicit pvcreate on the device.
1375   Update display.c to use vg_free(vg) instead of duplicating the calculation.
1376   Refactor vg_size, vg_free, and pv_mda_count field calculations for liblvm.
1377   Refactor pvcreate and lvcreate for liblvm.
1378   Add global/wait_for_locks to lvm.conf so blocking for locks can be disabled.
1379   All LV locks are non-blocking so remove LCK_NONBLOCK from separate macros.
1380   Fix race condition with vgcreate and vgextend on same device (2.02.49).
1381   Remove redundant validate_name call from vgreduce.
1382   Remove unused handles lvseg, pvseg inside liblvm/lvm.h.
1383   Add liblvm2app Makefile installation targets.
1384   Add liblvm pkgconfig file.
1385   Use newly-independent LVM_LIBAPI in liblvm soname.  E.g. liblvm2app.so.2.1.
1386   Add an API version number, LVM_LIBAPI, to the VERSION string for liblvm.
1387   Pass a pointer to struct cmd_context to init_multiple_segtypes
1388   Return EINVALID_CMD_LINE not success when invalid VG name format is used.
1389   Remove unnecessary messages after vgcreate/vgsplit refactor (2.02.49).
1390   Add log_errno to set a specific errno and replace log_error in due course.
1391   Change create_toolcontext to still return an object if it fails part-way.
1392   Add EUNCLASSIFIED (-1) as the default LVM errno code.
1393   Store any errno and error messages issued while processing each command.
1394   Use log_error macro consistently throughout in place of log_err.
1395
1396 Version 2.02.49 - 15th July 2009
1397 ================================
1398   Add readonly locking type to replace implementation of --ignorelockingfailure.
1399   Exclude VG_GLOBAL from vg_write_lock_held so scans open devs read-only again.
1400   Add unit test case for liblvm VG create/delete APIs.
1401   Add liblvm APIs to implement creation and deletion of VGs.
1402   Initialize cmd->cmd_line to "liblvm" in new liblvm library.
1403   Place handles to liblvm objects for pv, vg, lv, lvseg, pvseg inside lvm.h.
1404   Refactor vgsplit and vgextend to remove READ_REQUIRE_RESIZEABLE flag.
1405   Use _exit() not exit() after forking to avoid flushing libc buffers twice.
1406   Add cast to log_info arg in _find_labeller to avoid Sparc64 warning.
1407   Make cmd->cmd_line const.
1408   Fix dev name mismatch in vgcreate man page example.
1409   Refactor vg_remove_single for use in liblvm.
1410   Make all tools use consistent lock ordering obtaining VG_ORPHAN lock second.
1411   Check md devices for a partition table during device scan.
1412   Add extended device (blkext) and md partition (mdp) types to filters.
1413   Make text metadata read errors for segment areas more precise.
1414   Fix text segment metadata read errors to mention correct segment name.
1415   Include segment and LV names in text segment import error messages.
1416   Add parent node to config_node structure.
1417   Update vgsplit and vgcreate to call new vg_create and 'set' functions.
1418   Change vg_create to take minimal parameters, obtain a lock, and return vg_t.
1419   Refactor vgchange extent_size, max_lv, max_pv, and alloc_policy for liblvm.
1420   Update t-vgcreate-usage.sh to test for default vg properties.
1421   Fix memory leak in vgsplit when re-reading the vg.
1422   Make various exit/cleanup paths more robust after lvm init failures.
1423   Use LCK_NONBLOCK implicitly instead of explicit vg_read() flag.
1424   Remove unnecessary locking and existence tests from new vg_read() interface.
1425   Permit several segment types to be registered by a single shared object.
1426   Update the man pages to document size units uniformly.
1427   Allow commandline sizes to be specified in terms of bytes and sectors.
1428   Update 'md_chunk_alignment' to use stripe-width to align PV data area.
1429   Update test/t-inconsistent-metadata.sh to match new vg_read interface.
1430   Add lvmcache_init() to polldaemon initialization.
1431   Convert tools to use new vg_read / vg_read_for_update.
1432   Fix segfault in vg_release when vg->cmd is NULL.
1433
1434 Version 2.02.48 - 30th June 2009
1435 ================================
1436   Abort if automatic metadata correction fails when reading VG to update it.
1437   Explicitly request fallback to default major number in device mapper.
1438   Ignore suspended devices during repair.
1439   Call vgreduce --removemissing automatically to fix missing PVs in dmeventd.
1440   Suggest using lvchange --resync when adding leg to not-yet-synced mirror.
1441   Destroy toolcontext on clvmd exit to avoid memory pool leaks.
1442   Fix lvconvert not to poll mirror if no conversion in progress.
1443   Fix memory leaks in toolcontext error path.
1444   Reinstate partial activation support in clustered mode. (2.02.40)
1445   Allow metadata correction even when PVs are missing.
1446   Use 'lvm lvresize' instead of 'lvresize' in fsadm.
1447   Do not use '-n' realine option in fsadm for busybox compatiblity.
1448   Add vg_lock_newname() library function for vgrename, vgsplit and vgcreate.
1449   Round up requested readahead to at least one page and print warning.
1450   Try to repair vg before actual vgremove when force flag provided.
1451   Fix possible double release of VG after recovery.
1452   Add parameter to process_each_vg specifying what to do with inconsistent VG.
1453   Unify error messages when processing inconsistent volume group.
1454   Use lvconvert --repair instead of vgreduce in mirror dmeventd DSO.
1455   Introduce lvconvert --use_policies (repair policy according to lvm.conf).
1456   Update clvmd-corosync to match new corosync API.
1457   Fix lib Makefile to include any shared libraries in default target.
1458   Fix rename of active snapshot with virtual origin.
1459   Fix convert polling to ignore LV with different UUID.
1460   Cache underlying device readahead only before activation calls.
1461   Fix segfault when calculating readahead on missing device in vgreduce.
1462   Remove verbose 'visited' messages.
1463   Handle multi-extent mirror log allocation when smallest PV has only 1 extent.
1464   Add LSB standard headers and functions (incl. reload) to clvmd initscript.
1465   When creating new LV, double-check that name is not already in use.
1466   Remove /dev/vgname/lvname symlink automatically if LV is no longer visible.
1467   Rename internal vorigin LV to match visible LV.
1468   Suppress 'removed' messages displayed when internal LVs are removed.
1469   Fix lvchange -a and -p for sparse LVs.
1470   Fix lvcreate --virtualsize to activate the new device immediately.
1471   Make --snapshot optional with lvcreate --virtualsize.
1472   Generalise --virtualoriginsize to --virtualsize.
1473   Skip virtual origins in process_each_lv_in_vg() without --all.
1474   Fix counting of virtual origin LVs in vg_validate.
1475   Attempt to load dm-zero module if zero target needed but not present.
1476
1477 Version 2.02.47 - 22nd May 2009
1478 ===============================
1479   Rename liblvm.so to liblvm2app.so and use configure --enable-applib.
1480   Reinstate version in liblvm2cmd.so soname. (2.02.44)
1481
1482 Version 2.02.46 - 21st May 2009
1483 ===============================
1484   Inherit readahead setting from underlying devices during activation.
1485   Detect LVs active on remote nodes by querying locks if supported.
1486   Enable online resizing of mirrors.
1487   Use suspend with flush when device size was changed during table preload.
1488   Implement query_resource_fn for cluster_locking.
1489   Support query_resource_fn in locking modules.
1490   Introduce CLVMD_CMD_LOCK_QUERY command for clvmd.
1491   Fix pvmove to revert operation if temporary mirror creation fails.
1492   Fix metadata export for VG with missing PVs.
1493   Add vgimportclone and install it and the man page by default.
1494   Force max_lv restriction only for newly created LV.
1495   Remove unneeded import parameter from lv_create_empty.
1496   Merge lv_is_displayable and lv_is_visible functions.
1497   Introduce lv_set_visible & lv_set_hidden functions.
1498   Fix lv_is_visible to handle virtual origin.
1499   Introduce link_lv_to_vg and unlink_lv_from_vg functions.
1500   Remove lv_count from VG and use counter function instead.
1501   Fix snapshot segment import to not use duplicate segments & replace.
1502   Do not query nonexistent devices for readahead.
1503   Remove NON_BLOCKING lock flag from tools and set a policy to auto-set.
1504   Remove snapshot_count from VG and use function instead.
1505   Fix first_seg() call for empty segment list.
1506   Add install_lvm2 makefile target to install only the LVM2 components.
1507   Reject missing PVs from allocation in toollib.
1508   Fix PV datalignment for values starting prior to MDA area. (2.02.45)
1509   Add sparse devices: lvcreate -s --virtualoriginsize (hidden zero origin).
1510   Fix minimum width of devices column in reports.
1511   Add lvs origin_size field.
1512   Fix linux configure --enable-debug to exclude -O2.
1513   Implement lvconvert --repair for repairing partially-failed mirrors.
1514   Fix vgreduce --removemissing failure exit code.
1515   Fix remote metadata backup for clvmd.
1516   Introduce unlock_and_release_vg macro.
1517   Introduce vg_release() to be called to free every struct volume_group.
1518   Alloc PV internal structure from VG mempool if possible.
1519   Fix metadata backup to run after vg_commit always.
1520   Tidy clvmd volume lock cache functions.
1521   Fix pvs report for orphan PVs when segment attributes are requested.
1522   Fix pvs -a output to not read volume groups from non-PV devices.
1523   Add MMC (mmcblk) device type to filters.
1524   Introduce memory pools per volume group (to reduce memory for large VGs).
1525   Use copy of PV structure when manipulating global PV lists.
1526   Always return exit error status when locking of volume group fails.
1527   Fix mirror log convert validation question.
1528   Avoid referencing files from DESTDIR during build process.
1529   Avoid creating some static libraries unless configured --enable-static_link.
1530   Enable use of cached metadata for pvs and pvdisplay commands.
1531   Add missing 'device-mapper' internal subdir build dependency.
1532   Fix memory leak in mirror allocation code.
1533   Save and restore the previous logging level when log level is changed.
1534   Fix error message when archive initialization fails.
1535   Make sure clvmd-corosync releases the lockspace when it exits.
1536   Fix segfault for vgcfgrestore on VG with missing PVs.
1537   Block SIGTERM & SIGINT in clvmd subthreads.
1538   Detect and conditionally wipe swapspace signatures in pvcreate.
1539   Fix maximal volume count check for snapshots if max_lv set for volume group.
1540   Fix lvcreate to remove unused cow volume if the snapshot creation fails.
1541   Fix error messages when PV uuid or pe_start reading fails.
1542   Build new liblvm application-level library.
1543   Rename liblvm.a to liblvm-internal.a.
1544   Flush memory pool and fix locking in clvmd refresh and backup command.
1545   Fix unlocks in clvmd-corosync. (2.02.45)
1546   Fix error message when adding metadata directory to internal list fails.
1547   Fix size and error message of memory allocation at backup initialization.
1548   Remove old metadata backup file after renaming VG.
1549   Restore log_suppress state when metadata backup file is up-to-date.
1550
1551 Version 2.02.45 - 3rd March 2009
1552 ================================
1553   Avoid scanning empty metadata areas for VG names.
1554   Attempt proper clean up in child before executing new binary in exec_cmd().
1555   Do not scan devices if reporting only attributes from PV label.
1556   Use pkgconfig to obtain corosync library details during configuration.
1557   Fix error returns in clvmd-corosync interface to DLM.
1558   Add --refresh to vgchange and vgmknodes man pages.
1559   Pass --test from lvresize to fsadm as --dry-run.
1560   Supply argv[] list to exec_cmd() to allow for variable number of parameters.
1561   Prevent fsadm from checking mounted filesystems.
1562   No longer treats any other key as 'no' when prompting in fsadm.
1563   Tidy fsadm command line processing.
1564   Add lib/lvm.h and lib/lvm_base.c for the new library interface.
1565   Move tools/version.h to lib/misc/lvm-version.h.
1566   Split LVM_VERSION into MAJOR, MINOR, PATCHLEVEL, RELEASE and RELEASE_DATE.
1567   Add system_dir parameter to create_toolcontext().
1568   Add --dataalignment to pvcreate to specify alignment of data area.
1569   Exclude LCK_CACHE locks from _vg_lock_count, fixing interrupt unblocking.
1570   Provide da and mda locations in debug message when writing text format label.
1571   Mention the restriction on file descriptors at invocation on the lvm man page.
1572   Index cached vgmetadata by vgid not vgname to cope with duplicate vgnames.
1573   No longer require kernel and metadata major numbers to match.
1574   Add a fully-functional get_cluster_name() to clvmd corosync interface.
1575   Remove duplicate cpg_initialize from clvmd startup.
1576   Add option to /etc/sysconfig/cluster to select cluster type for clvmd.
1577   Allow clvmd to start up if its lockspace already exists.
1578   Separate PV label attributes which do not need parse metadata when reporting.
1579   Remove external dependency on the 'cut' command from fsadm.
1580   Fix pvs segfault when pv mda attributes requested for not available PV.
1581   Add fsadm support for reszing ext4 filesysystems.
1582   Move locking_type reading inside init_locking().
1583   Rename get_vgs() to get_vgnames() and clarify related error messages.
1584   Allow clvmd to be built with all cluster managers & select one on cmdline.
1585   Mention --with-clvmd=corosync in ./configure.
1586   Replace internal vg_check_status() implementation.
1587   Rename vg_read() to vg_read_internal().
1588
1589 Version 2.02.44 - 26th January 2009
1590 ===================================
1591   Fix --enable-static_link after the recent repository changes.
1592   Add corosync/DLM cluster interface to clvmd.
1593   Add --nameprefixes, --unquoted, --rows to pvs, vgs, lvs man pages.
1594   Fix lvresize size conversion for fsadm when block size is not 1K.
1595   Fix pvs segfault when run with orphan PV and some VG fields.
1596   Display a 'dev_size' of zero for missing devices in reports.
1597   Add pv_mda_size to pvs and vg_mda_size to vgs.
1598   Fix lvmdump /sys listing to include virtual devices directory.
1599   Add "--refresh" functionality to vgchange and vgmknodes.
1600   Avoid exceeding LV size when wiping device.
1601   Calculate mirror log size instead of using 1 extent.
1602   Ensure requested device number is available before activating with it.
1603   Fix incorrect exit status from 'help <command>'.
1604   Fix vgrename using UUID if there are VGs with identical names.
1605   Fix segfault when invalid field given in reporting commands.
1606   Move is_static from cmd to global is_static().
1607   Refactor init_lvm() for lvmcmdline and clvmd.
1608   Add liblvm interactive test infrastructure to build.
1609   Add skeleton lvm2.h file in preparation for a shared library interface.
1610   Use better random seed value in temp file creation.
1611   Add read_urandom to read /dev/urandom. Use in uuid calculation.
1612   Use displayable_lvs_in_vg and lv_is_displayable for consistency throughout.
1613   Fix race in vgcreate that would result in second caller overwriting first.
1614   Fix uninitialised lv_count in vgdisplay -c.
1615   Don't skip updating pvid hash when lvmcache_info struct got swapped.
1616   Add tinfo to termcap search path for pld-linux.
1617   Fix startup race in clvmd.
1618   Generate Red Hat clvmd startup script at config time with correct paths.
1619   Fix clvmd & dmeventd builds after tree restructuring.
1620   Cope with snapshot dependencies when removing a whole VG with lvremove.
1621   Make man pages and tool help text consistent using | for alternative options.
1622
1623 Version 2.02.43 - 10th November 2008
1624 ====================================
1625   Merge device-mapper into the lvm2 tree.
1626   Correct prototype for --permission on lvchange and lvcreate man pages.
1627   Exit with non-zero status from vgdisplay if couldn't show any requested VG.
1628   Move list.c into libdevmapper and rename functions.
1629   Rename a couple of variables that matched function names.
1630   Use simplified x.y.z version number in libdevmapper.pc.
1631   Remove ancient debian directory.
1632   Split out lvm-logging.h from log.h and lvm-globals.[ch] from log.[ch].
1633
1634 Version 2.02.42 - 26th October 2008
1635 ===================================
1636   Accept locking fallback_to_* options in the global section as documented.
1637   Fix temp table activation in mirror conversions not to happen in other cmds.
1638   Fix temp table in mirror conversions to use always-present error not zero.
1639
1640 Version 2.02.41 - 17th October 2008
1641 ===================================
1642   Use temp table to set device size when converting mirrors.
1643   In resume_mirror_images replace activate_lv with resume_lv as workaround.
1644   Avoid overwriting in-use on-disk text metadata by forgetting MDA_HEADER_SIZE.
1645   Fix snapshot monitoring library to not cancel monitoring invalid snapshot.
1646   Generate man pages from templates and include version.
1647   Add usrlibdir and usrsbindir to configure.
1648   Fix conversion of md chunk size into sectors.
1649   Free text metadata buffer after a failure writing it.
1650   Fix misleading error message when there are no allocatable extents in VG.
1651   Fix handling of PVs which reappeared with old metadata version.
1652   Fix mirror DSO to call vgreduce with proper parameters.
1653   Fix validation of --minor and --major in lvcreate to require -My always.
1654   Fix release: clvmd build, vgreduce consolidate & tests, /dev/ioerror warning.
1655
1656 Version 2.02.40 - 19th September 2008
1657 =====================================
1658   Allow lvremove to remove LVs from VGs with missing PVs.
1659   In VG with PVs missing, by default allow activation of LVs that are complete.
1660   Track PARTIAL_LV and MISSING_PV flags internally.
1661   Require --force with --removemissing in vgreduce to remove partial LVs.
1662   No longer write out PARTIAL flag into metadata backups.
1663   Treat new default activation/missing_stripe_filler "error" as an error target.
1664   Remove internal partial_mode.
1665   Add devices/md_chunk_alignment to lvm.conf.
1666   Pass struct physical_volume to pe_align and adjust for md chunk size.
1667   Store sysfs location in struct cmd_context.
1668   Avoid shuffling remaining mirror images when removing one, retaining primary.
1669   Add missing LV error target activation in _remove_mirror_images.
1670   Prevent resizing an LV while lvconvert is using it.
1671   Avoid repeatedly wiping cache while VG_GLOBAL is held in vgscan & pvscan.
1672   Fix pvresize to not allow resize if PV has two metadata areas.
1673   Fix setting of volume limit count if converting to lvm1 format.
1674   Fix vgconvert logical volume id metadata validation.
1675   Fix lvmdump metadata gather option (-m) to work correctly.
1676   Fix allocation bug in text metadata format write error path.
1677   Fix vgcfgbackup to properly check filename if template is used.
1678   configure aborts if lcov or genhtml are missing with --enable-profiling
1679   vgremove tries to remove lv snapshot first.
1680   Added function lv_remove_with_dependencies().
1681   Improve file descriptor leak detection to display likely culprit and filename.
1682   Change clustered mirror kernel module name from cmirror to dm-log-clustered.
1683   Avoid looping forever in _pv_analyze_mda_raw used by pvck.
1684   Change lvchange exit status to indicate if any part of the operation failed.
1685   Fix pvchange and pvremove to handle PVs without mdas.
1686   Refactor _text_pv_read and always return mda list if requested.
1687   Fix configure to work w/o readline unless --enable-readline used. (2.02.39)
1688   Remove is_lvm_partition template which has not yet been coded.
1689   Refactor pvcreate to separate parameter parsing from validation logic.
1690   Check for label_write() failure in _text_pv_write().
1691   Add pvcreate tests and update vgsplit tests to handle lvm1 and lvm2 metadata.
1692   Fix pvchange -M1 -u to preserve existing extent locations when there's a VG.
1693   Cease recognising snapshot-in-use percentages returned by early devt kernels.
1694   Add backward-compatible flags field to on-disk format_text metadata.
1695   Fix dmeventd monitoring libraries to link against liblvm2cmd again. (2.02.39)
1696
1697 Version 2.02.39 - 27th June 2008
1698 ================================
1699   Enable readline by default if available.
1700   Update autoconf to 2008-01-16.
1701   Add $DISTCLEAN_DIRS to make.tmpl.in.
1702   Create coverage reports with --enable-profiling and make lcov or lcov-dated.
1703   Fix up cache for PVs without mdas after consistent VG metadata is processed.
1704   Update validation of safe mirror log type conversions in lvconvert.
1705   Fix lvconvert to disallow snapshot and mirror combinations.
1706   Fix reporting of LV fields alongside unallocated PV segments.
1707   Add --unquoted and --rows to reporting tools.
1708   Add and use uninitialized_var() macro to suppress invalid compiler warnings.
1709   Introduce enum for md minor sb version to suppress compiler warning.
1710   Avoid undefined return value after _memlock manipulation in lvm2_run.
1711   Avoid link failure if configured without --enable-cmdlib or --enable-readline.
1712   Make clvmd return at once if other nodes down in a gulm or openais cluster.
1713   Fix and improve readahead 'auto' calculation for stripe_size.
1714   Fix lvchange output for -r auto setting if auto is already set.
1715   Add test case for readahead.
1716   Avoid ambiguous use of identifier error_message_produced.
1717   Begin syncing configure.in for merge/unification with device-mapper.
1718   Fix add_mirror_images not to dereference uninitialized log_lv upon failure.
1719   Don't call openlog for every debug line output by clvmd.
1720   Add --force to lvextend and lvresize.
1721   Fix vgchange not to activate component mirror volumes directly.
1722   Fix test directory clean up in make distclean.
1723
1724 Version 2.02.38 - 11th June 2008
1725 ================================
1726   Fix tracking of validity of PVs with no mdas in lvmcache.
1727   Fix return values for reporting commands when run with no PVs, LVs, or VGs.
1728   Add omitted unlock_vg() call when sigint_caught() during vg processing.
1729   Fix free_count when reading pool metadata.
1730   Fix segfault when using pvcreate on a device containing pool metadata.
1731   Fix segfault after _free_vginfo by remembering to remove vginfo from list.
1732   Tweak detection of invalid fid after changes to PVs in VG in _vg_read.
1733   Revert assuming precommitted metadata is live when activating (unnecessary).
1734   Drop cached metadata for disappearing VG in vgmerge.
1735   In script-processing mode, stop if any command fails.
1736   Warn if command exits with non-zero status code without a prior log_error.
1737   Check lv_count in vg_validate.
1738   Add --nameprefixes to reporting tools for field name prefix output format.
1739
1740 Version 2.02.37 - 6th June 2008
1741 ===============================
1742   Make clvmd-cman use a hash rather than an array for node updown info.
1743   Correct config file line numbers in messages when parsing comments.
1744   Drop cached metadata when renaming a VG.
1745   Allow for vginfo changing during _vg_read.
1746   Decode numbers in clvmd debugging output.
1747   Add missing deactivation after activation failure in lvcreate -Zy.
1748   When activating, if precommitted metadata is still cached, assume it's live.
1749   When removing LV symlinks, skip any where the VG name is not determined.
1750   Drop metadata cache if update fails in vg_revert or vg_commit.
1751   Avoid spurious duplicate VG messages referring to VGs that are gone.
1752   Drop dev_name_confirmed error message to debug level.
1753   Fix setpriority error message to signed int.
1754   Temporarily disable dmeventd mirror monitoring during lvchange --resync.
1755   Refactor some vginfo manipulation code.
1756   Add assertions to trap deprecated P_ and V_ lock usage.
1757   Add missing mutex around clvmd lvmcache_drop_metadata library call.
1758   Fix uninitialised mutex in clvmd if all daemons are not running at startup.
1759   Avoid using DLM locks with LCK_CACHE type P_ lock requests.
1760   When asked to drop cached committed VG metadata, invalidate cached PV labels.
1761   Drop metadata cache before writing precommitted metadata instead of after.
1762   Don't touch /dev in vgrename if activation is disabled.
1763
1764 Version 2.02.36 - 29th April 2008
1765 =================================
1766   Fix fsadm.sh to work with older blockdev, blkid & readlink binaries.
1767   Fix lvresize to pass new size to fsadm when extending device.
1768   Remove unused struct in clvmd-openais, and use correct node count.
1769   Fix nodes list in clvmd-openais, and allow for broadcast messages.
1770   Exclude VG_GLOBAL from internal concurrent VG lock counter.
1771   Fix vgsplit internal counting of snapshot LVs.
1772   Fix vgmerge snapshot_count when source VG contains snapshots.
1773   Simplify clvmd-openais by using non-async saLckResourceLock.
1774   Fix internal LV counter when a snapshot is removed.
1775   Fix metadata corruption writing lvm1-formatted metadata with snapshots.
1776   Fix lvconvert -m0 allocatable space check.
1777
1778 Version 2.02.35 - 15th April 2008
1779 =================================
1780   Drop cached VG metadata before and after committing changes to it.
1781   Rename P_global to P_#global.
1782   Don't attempt remote metadata backups of non-clustered VGs. (2.02.29)
1783   Don't store fid in VG metadata cache to avoid clvmd segfault. (2.02.34)
1784   Update vgsplit tests to verify loosening of active LV restriction.
1785   Update vgsplit to only restrict split with active LVs involved in split.
1786   Add lv_is_active() to determine whether an lv is active.
1787
1788 Version 2.02.34 - 10th April 2008
1789 =================================
1790   Improve preferred_names lvm.conf example.
1791   Fix vgdisplay 'Cur LV' field to match lvdisplay output.
1792   Fix lv_count report field to exclude hidden LVs.
1793   Add vg_is_clustered() helper function.
1794   Fix vgsplit to only move hidden 'snapshotN' LVs when necessary.
1795   Update vgsplit tests for lvnames on the cmdline.
1796   Update vgsplit man page to reflect lvnames on the cmdline.
1797   Update vgsplit to take "-n LogicalVolumeName" on the cmdline.
1798   Use clustered mirror log with pvmove in clustered VGs, if available.
1799   Fix some pvmove error status codes.
1800   Fix vgsplit error paths to release vg_to lock.
1801   Indicate whether or not VG is clustered in vgcreate log message.
1802   Mention default --clustered setting in vgcreate man page.
1803   Add config file overrides to clvmd when it reads the active LVs list.
1804   Fix vgreduce to use vg_split_mdas to check sufficient mdas remain.
1805   Add (empty) orphan VGs to lvmcache during initialisation.
1806   Fix orphan VG name used for format_pool.
1807   Create a fid for internal orphan VGs.
1808   Update lvmcache VG lock state for all locking types now.
1809   Fix output if overriding command_names on cmdline.
1810   Add detection of clustered mirror log capability.
1811   Add check to vg_commit() ensuring VG lock held before writing new VG metadata.
1812   Add validation of LV name to pvmove -n.
1813   Make clvmd refresh the context correctly when lvm.conf is updated.
1814   Add some basic internal VG lock validation.
1815   Add per-command flags to control which commands use the VG metadata cache.
1816   Fix vgsplit locking of new VG (2.02.30).
1817   Avoid erroneous vgsplit error message for new VG. (2.02.29)
1818   Suppress duplicate message when lvresize fails because of invalid vgname.
1819   Cache VG metadata internally while VG lock is held.
1820   Fix redundant lvresize message if vg doesn't exist.
1821   Fix another allocation bug with clvmd and large node IDs.
1822   Add find_lv_in_lv_list() and find_pv_in_pv_list().
1823   Fix uninitialised variable in clvmd that could cause odd hangs.
1824   Add vgmerge tests.
1825   Add pvseg_is_allocated() for identifying a PV segment allocated to a LV.
1826   Add list_move() for moving elements from one list to another.
1827   Add 'is_reserved_lvname()' for identifying hidden LVs.
1828   Correct command name in lvmdiskscan man page.
1829   clvmd no longer crashes if it sees nodeids over 50.
1830   Fix potential deadlock in clvmd thread handling.
1831   Refactor text format initialisation into _init_text_import.
1832   Escape double quotes and backslashes in external metadata and config data.
1833   Add functions for escaping double quotes in strings.
1834   Rename count_chars_len to count_chars.
1835   Use return_0 in a couple more places.
1836   Correct a function name typo in _line_append error message.
1837   Include limits.h in clvmd so it compiles with newer headers.
1838   Add VirtIO disks (virtblk) to filters.
1839   Fix resetting of MIRROR_IMAGE and VISIBLE_LV after removal of LV. (2.02.30)
1840   Fix remove_layer_from_lv to empty the LV before removing it. (2.02.30)
1841   Add missing no-longer-used segs_using_this_lv test to check_lv_segments.
1842   Remove redundant non-NULL tests before calling free in clvmd.c.
1843   Avoid a compiler warning: make is_orphan's parameter const.
1844   Fix lvconvert detection of mirror conversion in progress. (2.02.30)
1845   Avoid automatic lvconvert polldaemon invocation when -R specified. (2.02.30)
1846   Fix 'pvs -a' to detect VGs of PVs without metadata areas.
1847   Divide up internal orphan volume group by format type.
1848   Update usage message for clvmd.
1849   Fix clvmd man page not to print <br> and clarified debug options.
1850   Fix lvresize to support /dev/mapper prefix in the LV name.
1851   Fix unfilled parameter passed to fsadm from lvresize.
1852   Update fsadm to call lvresize if the partition size differs (with option -l).
1853   Fix fsadm to support VG/LV names.
1854
1855 Version 2.02.33 - 31st January 2008
1856 ===================================
1857   Fix mirror log name construction during lvconvert. (2.02.30)
1858   Make monitor_dev_for_events recurse through the stack of LVs.
1859   Clean up some more compiler warnings.
1860   Some whitespace tidy-ups.
1861   Use stack return macros throughout.
1862   Rely upon internally-cached PV labels while corresponding VG lock is held.
1863
1864 Version 2.02.32 - 29th January 2008
1865 ===================================
1866   Fix two check_lv_segments error messages to show whole segment.
1867   Refactor mirror log attachment code.
1868   Fix internal metadata corruption in lvchange --resync. (2.02.30)
1869   Fix new parameter validation in vgsplit and test mode. (2.02.30)
1870   Remove redundant cnxman-socket.h file from clvmd directory.
1871   Fix pvs, vgs, lvs error exit status on some error paths.
1872
1873 Version 2.02.31 - 19th January 2008
1874 ===================================
1875   Fix lvcreate --nosync not to wait for non-happening sync. (2.02.30)
1876   Add very_verbose lvconvert messages.
1877   Avoid readahead error message with default setting of lvcreate -M1. (2.02.29)
1878
1879 Version 2.02.30 - 17th January 2008
1880 ===================================
1881   Set default readahead to twice maximium stripe size.
1882   Reinstate VG extent size and stripe size defaults (halved). (2.02.29)
1883   Add lists of stacked LV segments using each LV to the internal metadata.
1884   Change vgsplit -l (for unimplemented --list) into --maxlogicalvolumes.
1885   Fix process_all_pvs to detect non-orphans with no MDAs correctly.
1886   Don't use block_on_error with mirror targets version 1.12 and above.
1887   Update vgsplit to accept vgcreate options when new VG is destination.
1888   Update vgsplit to accept existing VG as destination.
1889   lvconvert waits for completion of initial sync by default.
1890   Refactor vgcreate for parameter validation and add tests.
1891   Add new convert_lv field to lvs output.
1892   Print warning when lvm tools are running as non-root.
1893   Add snapshot dmeventd library (enables dmeventd snapshot monitoring).
1894   Prevent pvcreate from overwriting MDA-less PVs belonging to active VGs.
1895   Fix a segfault if using pvs with --all argument. (2.02.29)
1896   Update --uuid argument description in man pages.
1897   Fix vgreduce PV list processing not to process every PV in the VG. (2.02.29)
1898   Extend lvconvert to use polldaemon.
1899   Add support for stacked mirrors.
1900   Major restructuring of pvmove and lvconvert layer manipulation code.
1901   Replace tools/fsadm with scripts/fsadm.sh.
1902   Append fields to report/pvsegs_cols_verbose.
1903   Permit LV segment fields with PV segment reports.
1904   Add seg_start_pe and seg_pe_ranges to reports.
1905
1906 Version 2.02.29 - 5th December 2007
1907 ===================================
1908   Make clvmd backup vg metadata on remote nodes.
1909   Refactor pvmove allocation code.
1910   Decode cluster locking state in log message.
1911   Change file locking state messages from debug to very verbose.
1912   Fix --addtag to drop @ prefix from name.
1913   Stop clvmd going haywire if a pre_function fails.
1914   Convert some vg_reads into vg_lock_and_reads.
1915   Avoid nested vg_reads when processing PVs in VGs and fix associated locking.
1916   Accept sizes with --readahead argument.
1917   Store size arguments as sectors internally.
1918   Attempt to remove incomplete LVs with lvcreate zeroing/activation problems.
1919   Add read_ahead activation code.
1920   Add activation/readahead configuration option and FMT_RESTRICTED_READAHEAD.
1921   Extend readahead arg to accept "auto" and "none".
1922   Add lv_read_ahead and lv_kernel_read_ahead fields to reports and lvdisplay.
1923   Prevent lvconvert -s from using same LV as origin and snapshot.
1924   Fix human-readable output of odd numbers of sectors.
1925   Add pv_mda_free and vg_mda_free fields to reports for raw text format.
1926   Add LVM2 version to 'Generated by' comment in metadata.
1927   Show 'not usable' space when PV is too large for device in pvdisplay.
1928   Ignore and fix up any excessive device size found in metadata.
1929   Fix error message when fixing up PV size in lvm2 metadata (2.02.11).
1930   Fix orphan-related locking in pvdisplay and pvs.
1931   Fix missing VG unlocks in some pvchange error paths.
1932   Add some missing validation of VG names.
1933   Rename validate_vg_name() to validate_new_vg_name().
1934   Change orphan lock to VG_ORPHANS.
1935   Change format1 to use ORPHAN as orphan VG name.
1936   Convert pvchange, pvdisplay, pvscan to use is_orphan()
1937   Add is_orphan_vg() and change all hard-coded checks to use it.
1938   Detect md superblocks version 1.0, 1.1 and 1.2.
1939   Add _alloc_pv() and _free_pv() from _pv_create() code and fix error paths.
1940   Add pv_dev_name() to access PV device name.
1941   Add const attributes to pv accessor functions.
1942   Refactor vg_add_snapshot() and lv_create_empty().
1943   Handle new sysfs subsystem/block/devices directory structure.
1944   Run test with LVM_SYSTEM_DIR pointing to private root and /dev dirs.
1945   Fix a bug in lvm_dump.sh checks for lvm/dmsetup binaries.
1946   Fix underquotations in lvm_dump.sh.
1947   Refactor lvcreate stripe and mirror parameter validation.
1948   Print --help output to stdout, not stderr.
1949   After a cmdline processing error, don't print help text but suggest --help.
1950   Add %PVS extents option to lvresize, lvextend, and lvcreate.
1951   Add 'make check' to run tests in new subdirectory 'test'.
1952   Moved the obsolete test subdirectory to old-tests.
1953   Cope with relative paths in configure --with-dmdir.
1954   Remove no-longer-correct restrictions on PV arg count with stripes/mirrors.
1955   Fix strdup memory leak in str_list_dup().
1956   Link with -lpthread when static SELinux libraries require that.
1957   Detect command line PE values that exceed their 32-bit range.
1958   Include strerror string in dev_open_flags' stat failure message.
1959   Move guts of pvresize into library.
1960   Avoid error when --corelog is provided without --mirrorlog. (2.02.28)
1961   Correct --mirrorlog argument name in man pages (not --log).
1962   Clear MIRROR_NOTSYNCED LV flag when converting from mirror to linear.
1963   Modify lvremove to prompt for removal if LV active on other cluster nodes.
1964   Add '-f' to vgremove to force removal of VG even if LVs exist.
1965
1966 Version 2.02.28 - 24th August 2007
1967 ==================================
1968   Fix clvmd logging so you can get lvm-level debugging out of it.
1969   Introduce VG_GLOBAL lock type for vgscan/pvscan to trigger clvmd -R.
1970   Change locking_flags from int to uint32_t.
1971   Fix clvmd -R, so it fully refreshes the caches.
1972   Change lvconvert_mirrors to use mirror segtype not striped.
1973   Fix lvconvert_mirrors detection of number of existing mirrors.
1974   Clean up numerous compiler warnings that appeared in recent releases.
1975   Remove several unused parameters from _allocate().
1976   Only permit --force, --verbose and --debug arguments to be repeated.
1977   Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1.
1978   Move guts of vgremove and lvremove into library, including yes_no_prompt.
1979   Allow clvmd debug to be turned on in a running daemon using clvmd -d [-C].
1980   Update to use autoconf 2.61, while still supporting 2.57.
1981   Add more cluster info to lvmdump.
1982   Add further const attributes throughout.
1983   Add support for renaming mirrored LVs.
1984   Factor out core of lvrename() to library function.
1985   Add --mirrorlog argument to specify log type for mirrors.
1986   Don't attempt to monitor devices if their creation failed in _lv_activate.
1987   Don't leak a file descriptor in fcntl_lock_file() when fcntl fails.
1988   Replace create_dir with dm_create_dir.
1989   Detect stream write failure reliably with lvm_fclose using dm_fclose.
1990   Fix clvmd if compiled with gulm support. (2.02.26)
1991   Fix lvdisplay man page to say LV size is reported in sectors, not KB.
1992   Add vg_lock_and_read() external library function.
1993   Fix loading of persistent cache if cache_dir is used. (2.02.23)
1994   Reduce _compare_paths lstat error message from log_error to log_very_verbose.
1995   Create util.h with last_path_component replacing strdup + basename.
1996   Use gcc's printf attribute wherever possible.
1997   In _line_append, use "sizeof buf - 1" rather than equivalent "4095".
1998   Introduce is_same_inode macro, now including a comparison of st_dev.
1999   Don't leak a file descriptor in _lock_file() when flock fails.
2000   Add SUN's LDOM virtual block device (vdisk) and ps3disk to filters.
2001   Split metadata-external.h out from metadata.h for the tools to use.
2002
2003 Version 2.02.27 - 17th July 2007
2004 ================================
2005   Fix snapshot cow area deactivation if origin is not active. (2.02.13)
2006   Fix configure libdevmapper.h check when --with-dmdir is used.
2007   Turn _add_pv_to_vg() into external library function add_pv_to_vg().
2008   Add pv_by_path() external library function.
2009   Tidy clvmd-openais of redundant bits, and improve an error report.
2010   Cope with find_seg_by_le() failure in check_lv_segments().
2011   Call dev_iter_destroy() if _process_all_devs() is interrupted by sigint.
2012   Add vg_mda_count and pv_mda_count columns to reports.
2013   Fix dumpconfig to use log_print instead of stdout directly.
2014   Remove unused parameter 'fid' from _add_pv_to_vg.
2015   Add kernel and device-mapper targets versions to lvmdump.
2016   Replace BSD (r)index with C89 str(r)chr.
2017   Handle vgsplit of an entire VG as a vgrename.
2018   Reinitialise internal lvmdiskscan variables when called repeatedly.
2019   Fix missing lvm_shell symbol in lvm2cmd library. (2.02.23)
2020   Add vg_status function and clean up vg->status in tools directory.
2021   Add --ignoremonitoring to disable all dmeventd interaction.
2022   Remove get_ prefix from get_pv_* functions.
2023   clvmd-openais now uses cpg_local_get() to get nodeid, rather than Clm.
2024   Print warnings to stderr instead of stdout.
2025
2026 Version 2.02.26 - 15th June 2007
2027 ================================
2028   Update vgcfgrestore man page.
2029   Allow keyboard interrupt during user prompts when appropriate.
2030   Remove unused clvmd system-lv code.
2031   Replace many physical_volume struct dereferences with new get_pv_* functions.
2032   Suppress a benign compile-time warning.
2033   Convert find_pv_in_vg_by_uuid and pv_create to use PV handles.
2034   Add wrappers to some functions in preparation for external LVM library.
2035   Add -f to vgcfgrestore to list metadata backup files.
2036   Add vg_check_status to consolidate vg status checks and error messages.
2037   Add pvdisplay --maps implementation.
2038   Remove unsupported LVM1 options from vgcfgrestore man page.
2039   Update vgcfgrestore man page to show mandatory VG name.
2040   Update vgrename man page to include UUID and be consistent with lvrename.
2041   Add (experimental) OpenAIS support to clvmd.
2042   Fix deactivation code to follow dependencies and remove symlinks.
2043   Fix and clarify vgsplit error messages.
2044   Fix a segfault in device_is_usable() if a device has no table.
2045   Add some more debug messages to clvmd startup.
2046   Misc clvmd cleanups.
2047
2048 Version 2.02.25 - 27th April 2007
2049 =================================
2050   Fix get_config_uint64() to read a 64-bit value not a 32-bit one.
2051   Add -Wformat-security and change one fprintf() to fputs().
2052   Move regex functions into libdevmapper.
2053   Change some #include lines to search only standard system directories.
2054   Add devices/preferred_names config regex list for displayed device names.
2055   Free a temporary dir string in fcntl_lock_file() after use.
2056   Fix a dm_pool_destroy() in matcher_create().
2057   Introduce goto_bad macro.
2058   Fix warnings on x86_64 involving ptrdiff_t in log_error messages.
2059   Update pvck to include text metadata area and record detection.
2060   Add support functions for token counting in config file extracts.
2061   Update pvck to read labels on disk, with --labelsector parameter.
2062   Add count_chars and count_chars_len functions.
2063   Add /sys/block listings to lvm_dump.sh.
2064   Make lvm_dump.sh list /dev recursively.
2065   Fix thread race in clvmd.
2066   Add scan_sector param to label_read and _find_labeller.
2067   Make clvmd cope with quorum devices.
2068   Add extra internal error checking to clvmd.
2069   Add dev_read_circular.
2070   Add pvck command stub.
2071   Update lists of attribute characters in man pages.
2072   Change cling alloc policy attribute character from 'C' to l'.
2073   Fix creation and conversion of mirrors with tags.
2074   Fix vgsplit for lvm1 format (set and validate VG name in PVs metadata).
2075   Split metadata areas in vgsplit properly.
2076
2077 Version 2.02.24 - 19th March 2007
2078 =================================
2079   Fix processing of exit status in init scripts
2080   Fix vgremove to require at least one vg argument.
2081   Fix reading of striped LVs in LVM1 format.
2082   Flag nolocking as clustered so clvmd startup sees clustered LVs. (2.02.10)
2083   Add a few missing pieces of vgname command line validation.
2084   Support the /dev/mapper prefix on most command lines.
2085
2086 Version 2.02.23 - 8th March 2007
2087 ================================
2088   Fix vgrename active LV check to ignore differing vgids.
2089   Remove no-longer-used uuid_out parameter from activation info functions.
2090   Fix two more segfaults if an empty config file section encountered.
2091   Move .cache file into a new /etc/lvm/cache directory by default.
2092   Add devices/cache_dir & devices/cache_file_prefix, deprecating devices/cache.
2093   Create directory in fcntl_lock_file() if required.
2094   Exclude readline support from lvm.static.
2095   Fix a leak in a reporting error path (2.02.19).
2096
2097 Version 2.02.22 - 13th February 2007
2098 ====================================
2099   Correct -b and -P on a couple of man pages.
2100   Add global/units to example.conf.
2101   Fix loading of segment_libraries.
2102   If a PV reappears after it was removed from its VG, make it an orphan.
2103   Don't update metadata automatically if VGIDs don't match.
2104   Fix some vgreduce --removemissing command line validation.
2105
2106 Version 2.02.21 - 30th January 2007
2107 ===================================
2108   Add warning to lvm2_monitoring_init_rhel4 if attempting to stop monitoring.
2109   Fix vgsplit to handle mirrors.
2110   Reorder fields in reporting field definitions.
2111   Fix vgs to treat args as VGs even when PV fields are displayed.
2112   Fix md signature check to handle both endiannesses.
2113
2114 Version 2.02.20 - 25th January 2007
2115 ===================================
2116   dmeventd mirror sets ignore_suspended_devices and avoids scanning mirrors.
2117   Add devices/ignore_suspended_devices to ignore suspended dm devices.
2118   Add some missing close() and fclose() return code checks.
2119   Fix exit statuses of reporting tools (2.02.19).
2120   Add init script for dmeventd monitoring.
2121   lvm.static no longer interacts with dmeventd unless explicitly asked to.
2122   Add field definitions to report help text.
2123   Remove unnecessary cmd arg from target_*monitor_events().
2124   Add private variable to dmeventd shared library interface.
2125   Long-lived processes write out persistent dev cache in refresh_toolcontext().
2126   Fix refresh_toolcontext() always to wipe persistent device filter cache.
2127   Add is_long_lived to toolcontext.
2128   Add --clustered to man pages.
2129   Streamline dm_report_field_* interface.
2130   Change remaining dmeventd terminology 'register' to 'monitor'.
2131   Update reporting man pages.
2132   No longer necessary to specify alignment type for report fields.
2133
2134 Version 2.02.19 - 17th January 2007
2135 ===================================
2136   Fix a segfault if an empty config file section encountered.
2137   Move basic reporting functions into libdevmapper.
2138   Fix partition table processing after sparc changes (2.02.16).
2139   Fix cmdline PE range processing segfault (2.02.13).
2140   Some libdevmapper-event interface changes.
2141   Report dmeventd mirror monitoring status.
2142   Fix dmeventd mirror status line processing.
2143
2144 Version 2.02.18 - 11th January 2007
2145 ===================================
2146   Revised libdevmapper-event interface for dmeventd.
2147   Remove dmeventd mirror status line word limit.
2148   Use CFLAGS when linking so mixed sparc builds can supply -m64.
2149   Prevent permission changes on active mirrors.
2150   Print warning instead of error message if lvconvert cannot zero volume.
2151   Add snapshot options to lvconvert man page.
2152   dumpconfig accepts a list of configuration variables to display.
2153   Change dumpconfig to use --file to redirect output to a file.
2154   Avoid vgreduce error when mirror code removes the log LV.
2155   Remove 3 redundant AC_MSG_RESULTs from configure.in.
2156   Free memory in _raw_read_mda_header() error paths.
2157   Fix ambiguous vgsplit error message for split LV.
2158   Fix lvextend man page typo.
2159   Add configure --with-dmdir to compile against a device-mapper source tree.
2160   Use no flush suspending for mirrors.
2161   Add dmeventd_mirror register_mutex, tidy initialisation & add memlock.
2162   Fix create mirror with name longer than 22 chars.
2163   Fix some activate.c prototypes when compiled without devmapper.
2164   Fix dmeventd mirror to cope if monitored device disappears.
2165
2166 Version 2.02.17 - 14th December 2006
2167 ====================================
2168   Add missing pvremove error message when device doesn't exist.
2169   When lvconvert allocates a mirror log, respect parallel area constraints.
2170   Use loop to iterate through the now-ordered policy list in _allocate().
2171   Check for failure to allocate just the mirror log.
2172   Introduce calc_area_multiple().
2173   Support mirror log allocation when there is only one PV: area_count now 0.
2174   Fix detection of smallest area in _alloc_parallel_area() for cling policy.
2175   Add manpage entry for clvmd -T
2176   Fix gulm operation of clvmd, including a hang when doing lvchange -aey
2177   Fix hang in clvmd if a pre-command failed.
2178
2179 Version 2.02.16 - 1st December 2006
2180 ===================================
2181   Fix VG clustered read locks to use PR not CR.
2182   Adjust some alignments for ia64/sparc.
2183   Fix mirror segment removal to use temporary error segment.
2184   Always compile debug logging into clvmd.
2185   Add startup timeout to RHEL4 clvmd startup script.
2186   Add -T (startup timeout) switch to clvmd.
2187   Improve lvm_dump.sh robustness.
2188   Update lvm2create_initrd to support gentoo.
2189
2190 Version 2.02.15 - 21st November 2006
2191 ====================================
2192   Fix clvmd_init_rhel4 line truncation (2.02.14).
2193   Install lvmdump by default.
2194   Fix check for snapshot module when activating snapshot.
2195   Fix pvremove error path for case when PV is in use.
2196   Warn if certain duplicate config file entries are seen.
2197   Enhance lvm_dump.sh for sysreport integration and add man page.
2198   Fix --autobackup argument which could never disable backups.
2199   Fix a label_verify error path.
2200
2201 Version 2.02.14 - 10th November 2006
2202 ====================================
2203   Fix adjusted_mirror_region_size() to handle 64-bit size.
2204   Add some missing bounds checks on 32-bit extent counters.
2205   Add Petabyte and Exabyte support.
2206   Fix lvcreate error message when 0 extents requested.
2207   lvremove man page: volumes must be cluster inactive before being removed.
2208   Protect .cache manipulations with fcntl locking.
2209   Change .cache timestamp comparisons to use ctime.
2210   Fix mirror log LV writing to set all bits in whole LV.
2211   Fix clustered VG detection and default runlevels in clvmd_init_rhel4.
2212   Fix high-level free space check for partial allocations.
2213
2214 Version 2.02.13 - 27th October 2006
2215 ===================================
2216   Add couple of missing files to tools/Makefile CLEAN_TARGETS.
2217   When adding snapshot leave cow LV mapped device active after zeroing.
2218   Fix a clvmd debug message.
2219   Add dev_flush() to set_lv().
2220   Add lvchange --resync.
2221   Perform high-level free space check before each allocation attempt.
2222   Don't allow a node to remove an LV that's exclusively active on anther node.
2223   Cope if same PV is included more than once in cmdline PE range list.
2224   Set PV size to current device size if it is found to be zero.
2225   Add segment parameter to target_present functions.
2226
2227 Version 2.02.12 - 16th October 2006
2228 ===================================
2229   Fix pvdisplay to use vg_read() for non-orphans.
2230   Fall back to internal locking if external locking lib is missing or fails.
2231   Retain activation state after changing LV minor number with --force.
2232   Propagate clustered flag in vgsplit and require resizeable flag.
2233
2234 Version 2.02.11 - 12th October 2006
2235 ===================================
2236   Add clvmd function to return the cluster name. not used by LVM yet.
2237   Add cling allocation policy.
2238   Change _check_contiguous() to use _for_each_pv().
2239   Extend _for_each_pv() to allow termination without error.
2240   Abstract _is_contiguous().
2241   Remove duplicated pv arg from _check_contiguous().
2242   Accept regionsize with lvconvert.
2243   Add report columns with underscore before field names ending 'size'.
2244   Correct regionsize default on lvcreate man page (MB).
2245   Fix clvmd bug that could cause it to die when a node with a long name crashed.
2246   Add device size to text metadata.
2247   Fix format_text mda_setup pv->size and pv_setup pe_count calculations.
2248   Fix _for_each_pv() for mirror with core log.
2249   Add lvm_dump.sh script to create a tarball of debugging info from a system.
2250   Capture error messages in clvmd and pass them back to the user.
2251   Remove unused #defines from filter-md.c.
2252   Make clvmd restart init script wait until clvmd has died before starting it.
2253   Add -R to clvmd which tells running clvmds to reload their device cache.
2254   Add LV column to reports listing kernel modules needed for activation.
2255   Show available fields if report given invalid field. (e.g. lvs -o list)
2256   Add timestamp functions with --disable-realtime configure option.
2257   Add %VG, %LV and %FREE suffices to lvcreate/lvresize --extents arg.
2258   Fix two potential NULL pointer derefs in error cases in vg_read().
2259   Separate --enable-cluster from locking lib options in lvmconf.sh.
2260   Add a missing comma in lvcreate man page.
2261
2262 Version 2.02.10 - 19th September 2006
2263 =====================================
2264   Fix lvconvert mirror change case detection logic.
2265   Fix mirror log detachment so it correctly becomes a standalone LV.
2266   Extend _check_contiguous() to detect single-area LVs.
2267   Include mirror log (untested) in _for_each_pv() processing.
2268   Use MIRROR_LOG_SIZE constant.
2269   Remove struct seg_pvs from _for_each_pv() to generalise.
2270   Avoid adding duplicates to list of parallel PVs to avoid.
2271   Fix several incorrect comparisons in parallel area avoidance code.
2272   Fix segment lengths when flattening existing parallel areas.
2273   Log existing parallel areas prior to allocation.
2274   Fix mirror log creation when activation disabled.
2275   Don't attempt automatic recovery without proper locking.
2276   When using local file locking, skip clustered VGs.
2277   Add fallback_to_clustered_locking and fallback_to_local_locking parameters.
2278   lvm.static uses built-in cluster locking instead of external locking.
2279   Don't attempt to load shared libraries if built statically.
2280   Change default locking_lib to liblvm2clusterlock.so.
2281   Add skip_dev_dir() to process command line VGs.
2282   Stop clvmd complaining about nodes that have left the cluster.
2283   Move lvm_snprintf(), split_words() and split_dm_name() into libdevmapper.
2284   Add lvconvert man page.
2285   Add mirror options to man pages.
2286   Prevent mirror renames.
2287   Move CMDLIB code into separate file and record whether static build.
2288
2289 Version 2.02.09 - 17th August 2006
2290 ==================================
2291   Fix PE_ALIGN for pagesize over 32KB.
2292   Separate out LVM1_PE_ALIGN and pe_align().
2293   Add lvm_getpagesize wrapper.
2294   Add --maxphysicalvolumes to vgchange.
2295
2296 Version 2.02.08 - 15th August 2006
2297 ==================================
2298   Add checks for duplicate LV name, lvid and PV id before writing metadata.
2299   Report all sanity check failures, not just the first.
2300   Fix missing lockfs on first snapshot creation.
2301   Add unreliable --trustcache option to reporting commands.
2302   Fix locking for mimage removal.
2303   Fix clvmd_init_rhel4 'status' exit code.
2304
2305 Version 2.02.07 - 17th July 2006
2306 ================================
2307   Fix activation logic in lvchange --persistent.
2308   Don't ignore persistent minor numbers when activating.
2309   Use RTLD_GLOBAL when loading shared libraries.
2310   Add some forgotten memlock checks to _vg_read to protect against full scans.
2311   Add mutex to dmeventd_mirror to avoid concurrent execution.
2312   Fix vgreduce --removemissing to return success if VG is already consistent.
2313   Fix return code if VG specified on command line is not found.
2314   Fix PV tools to include orphaned PVs in default output again.
2315   Fixed unaligned access when using clvm.
2316   Fix an extra dev_close in a label_read error path.
2317   Append patches to commit emails.
2318   Fix target_register_events args.
2319   Prevent snapshots of mirrors.
2320   Add DISTCLEAN_TARGETS to make template for configure.h.
2321   More fixes to error paths.
2322   Fix lvcreate corelog validation.
2323   Add --config for overriding most config file settings from cmdline.
2324   Quote arguments when printing command line.
2325   Remove linefeed from 'initialising logging' message.
2326   Add 'Completed' debug message.
2327   Don't attempt library exit after reloading config files.
2328   Always compile with libdevmapper, even if device-mapper is disabled.
2329
2330 Version 2.02.06 - 12th May 2006
2331 ===============================
2332   Propagate --monitor around cluster.
2333   Add --monitor to vgcreate and lvcreate to control dmeventd registration.
2334   Filter LCK_NONBLOCK in clvmd lock_vg.
2335   Add --nosync to lvcreate with LV flag NOTSYNCED.
2336   Use mirror's uuid for a core log.
2337   Add mirror log fault-handling policy.
2338   Improve mirror warning messages and tidy dmeventd syslog output.
2339   Propagate nosync flag around cluster.
2340   Allow vgreduce to handle mirror log failures.
2341   Add --corelog to lvcreate and lvconvert.
2342   Create a log header for replacement in-sync mirror log.
2343   Use set_lv() and dev_set() to wipe sections of devices.
2344   Add mirror_in_sync() flag to avoid unnecessary resync on activation.
2345   Add mirror_library description to example.conf.
2346   Fix uuid_from_num() buffer overrun.
2347   Make SIZE_SHORT the default for display_size().
2348   Fix some memory leaks in error paths found by coverity.
2349   Use C99 struct initialisers.
2350   Move DEFS into configure.h.
2351   Clean-ups to remove miscellaneous compiler warnings.
2352   Improve stripe size validation.
2353   Increase maximum stripe size limit to physical extent size for lvm2 metadata.
2354   Fix activation code to check for pre-existing mirror logs.
2355   Tighten region size validation.
2356   Ignore empty strings in config files.
2357   Require non-zero regionsize and document parameter on lvcreate man page.
2358   Invalidate cache if composition of VG changed externally.
2359
2360 Version 2.02.05 - 21st April 2006
2361 =================================
2362   Fix vgid string termination in recent cache code.
2363
2364 Version 2.02.04 - 19th April 2006
2365 =================================
2366   Check for libsepol.
2367   Add some cflow & scope support.
2368   Separate out DEFS from CFLAGS.
2369   Remove inlines and use unique function names.
2370
2371 Version 2.02.03 - 14th April 2006
2372 =================================
2373   vgrename accepts vgid and exported VG.
2374   Add --partial to pvs.
2375   When choosing between identically-named VGs, also consider creation_host.
2376   Provide total log suppression with 2.
2377   Fix vgexport/vgimport to set/reset PV exported flag so pv_attr is correct.
2378   Add vgid to struct physical_volume and pass with vg_name to some functions.
2379   If two or more VGs are found with the same name, use one that is not exported.
2380   Whenever vgname is captured, also capture vgid and whether exported.
2381   Remove an incorrect unlock_vg() from process_each_lv().
2382   Update extent size information in vgchange and vgcreate man pages.
2383   Introduce origin_from_cow() and lv_is_visible().
2384   pvremove without -f now fails if there's no PV label.
2385   Support lvconvert -s.
2386   Suppress locking library load failure message if --ignorelockingfailure.
2387   Propagate partial mode around cluster.
2388   Fix archive file expiration.
2389   Fix dmeventd build.
2390   clvmd now uses libcman rather than cman ioctls.
2391   clvmd will allow new cman to shutdown on request.
2392
2393 Version 2.02.02 - 7th February 2006
2394 ===================================
2395   Add %.so: %.a make template rule.
2396   Switchover library building to use LIB_SUFFIX.
2397   Only do lockfs filesystem sync when suspending snapshots.
2398   Always print warning if activation is disabled.
2399   vgreduce removes mirror images.
2400   Add --mirrorsonly to vgreduce.
2401   vgreduce replaces active LVs with error segment before removing them.
2402   Set block_on_error parameter if available.
2403   Add target_version.
2404   Add details to format1 'Invalid LV in extent map' error message.
2405   Fix lvscan snapshot full display.
2406   Bring lvdisplay man page example into line.
2407   Add mirror dmeventd library.
2408   Add some activation logic to remove_mirror_images().
2409   lvconvert can remove specified PVs from a mirror.
2410   lvconvert turns an existing LV into a mirror.
2411   Allow signed mirrors arguments.
2412   Move create_mirror_log() into toollib.
2413   Determine parallel PVs to avoid with ALLOC_NORMAL allocation.
2414   Fix lv_empty.
2415
2416 Version 2.02.01 - 23rd November 2005
2417 ====================================
2418   Fix lvdisplay cmdline to accept snapshots.
2419   Fix open RO->RW promotion.
2420   Fix missing vg_revert in lvcreate error path.
2421
2422 Version 2.02.00 - 10th November 2005
2423 ====================================
2424   Extend allocation areas to avoid overflow with contiguous with other PVs.
2425   Stop lvcreate attempting to wipe zero or error segments.
2426   Added new lvs table attributes.
2427   Separated out activation preload.
2428   Moved activation functions into libdevmapper.
2429   Fixed build_dm_name.
2430   Add return macros.
2431   Added xen xvd devices.
2432   Clear up precommitted metadata better.
2433   A pvresize implementation.
2434   Fix contiguous allocation when there are no preceding segments.
2435   Add mirror_seg pointer to lv_segment struct.
2436   Only keep a device open if it's known to belong to a locked VG.
2437   Fix lvdisplay to show all mirror destinations.
2438   Replacement suspend code using libdevmapper dependency tree.
2439   Add DEFS to make.tmpl.
2440   Use dm_is_dm_major instead of local copy.
2441   Allow mapped devices to be used as PVs.
2442   Move set_selinux_context into libdevmapper.
2443   Fix automatic text metadata buffer expansion (using macro).
2444   Cache formatted text metadata buffer between metadata area writes.
2445   Add pe_start field to pvs.
2446   Add 'LVM-' prefix to uuids.
2447   Split lv_segment_area from lv_segment to permit extension.
2448   Replacement deactivation code using libdevmapper dependency tree.
2449   Simplify dev_manager_info().
2450   Attempt to load missing targets using modprobe.
2451   Add -a to lvscan.
2452   Move mknodes into libdevmapper.
2453   Move bitset, hash, pool and dbg_malloc into libdevmapper.
2454
2455 Version 2.01.15 - 16th October 2005
2456 ===================================
2457   Refuse to run pvcreate/pvremove on devices we can't open exclusively.
2458   Use ORPHAN lock definition throughout.
2459   Validate chunksize in lvcreate.
2460   Reduce chunksize limit to 512k.
2461   Fix chunksize field in reports.
2462   Don't hide snapshots from default 'lvs' output.
2463   Add is_dm_major() for use in duplicate device detection in lvmcache_add().
2464   Really switch device number in lvmcache when it says it is doing so.
2465   Option for bitset memory allocation using malloc as well as pool.
2466   Don't assume exactly two mirrors when parsing mirror status.
2467   Suppress fsync() error message on filesystems that don't support it.
2468   Fix yes_no_prompt() error handling.
2469   Add lvm.conf comment warning against multiple filter lines.
2470   Tidy lvmconf.sh.
2471   Add format1 dev_write debug messages.
2472   Add clustered VG attribute to report.
2473   Move lvconvert parameters into struct lvconvert_params.
2474   Add clustered VG flag to LV lock requests.
2475   Change LV locking macros to take lv instead of lvid.
2476   Prepend 'cluster' activation parameter to mirror log when appropriate.
2477   Pass exclusive flag to lv_activate and on to target activation code.
2478   Prevent snapshot creation in a clustered VG for now.
2479   Factor out adjusted_mirror_region_size() and generate_log_name_format().
2480   Move compose_log_line() into mirror directory.
2481   Factor out _get_library_path().
2482   Don't kill idling clvmd threads.
2483   clvmd no longer takes out locks for non-clustered LVs.
2484   Recognise ATA over Ethernet (aoe) devices.
2485
2486 Version 2.01.14 - 4th August 2005
2487 =================================
2488   Fix lvconvert PV parameter in help string.
2489   Prevent snapshots getting activated in a clustered VG.
2490   Separate out _build_dev_string.
2491   Move zero_lv to toollib.
2492   Fix pool format handler to work with pv segment code.
2493
2494 Version 2.01.13 - 13th July 2005
2495 ================================
2496   Fix pvmove segment splitting.
2497   Abstract vg_validate.
2498   Only make one attempt at contiguous allocation.
2499   Fix lvm1 format metadata read.
2500   Fix lvm1 format non-mirror lvcreate.
2501
2502 Version 2.01.12 - 14th June 2005
2503 ================================
2504   Various allocation-related pvmove fixes.
2505   Log an error if clvmd can't resolve a host name got from CCS.
2506   Fix potential spin loop in clvmd.
2507
2508 Version 2.01.11 - 13th June 2005
2509 ================================
2510   Added lvmconf.sh.
2511   Use matchpathcon mode parameter.
2512   Don't defer closing dead FDs in clvmd.
2513   Remove hard-coded 64k text metadata writing restriction.
2514   Make VG name restrictions consistent.
2515   Introduce lvconvert.  So far only removes mirror images.
2516   Allow mirror images to be resized.
2517   Allow mirror images to have more than one segment.
2518   Centralise restrictions on LV names.
2519   Always insert an intermediate layer for mirrors.
2520   Suppress hidden LVs from reports unless --all is given.
2521   Use square brackets for hidden LVs in reports.
2522   Allow the creation of mirrors with contiguous extents.
2523   Always perform sanity checks against metadata before committing it to disk.
2524   Split lv_extend into two steps: choosing extents + allocation to LV(s).
2525   Add mirror log region size to metadata.
2526   Use list_iterate_items throughout and add list*back macros.
2527   Introduce seg_ macros to access areas.
2528   Add segtype_is_ macros.
2529   Support tiny metadata areas for pool conversions.
2530   Mirror activation handles disk log as well as core.
2531   Activation code recognises mirror log dependency.
2532   Add mirror_log and regionsize fields to report.
2533   Fix non-orphan pvchange -u.
2534   Fix vgmerge to handle duplicate LVIDs.
2535   Move archiver code from tools into library.
2536   vgscan/change/display/vgs automatically create metadata backups if needed.
2537   Merge cloned allocation functions.
2538   Fix contiguous allocation policy with linear.
2539   Cope with missing format1 PVs again.
2540   Remove lists of free PV segments.
2541   Simplify pv_maps code and remove slow bitset algorithm.
2542   Red-Hat-ify the clvmd rhel4 initscript.
2543   %Zu->%zu
2544   Fix loopfiles alias alloc & mem debugging.
2545   Un-inline dbg_strdup.
2546   lv_reduce tidying.
2547   Remove some unnecessary parameters.
2548   Introduce seg_is macros.
2549
2550 Version 2.01.10 - 3rd May 2005
2551 ==============================
2552   Don't create backup and archive dirs till needed.
2553   Reinstate full PV size when removing from VG.
2554   Support loopfiles for testing.
2555   Tidy lv_segment interface.
2556   pv_segment support.
2557   vgchange --physicalextentsize
2558   Internal snapshot restructuring.
2559   Remove unused internal non-persistent snapshot option.
2560   Allow offline extension of snapshot volumes.
2561   Move from 2-step to 3-step on-disk metadata commit.
2562   Scan ramdisks too and allow non-O_DIRECT fallback.
2563   Annotate, tidy and extend list.h.
2564   Alignment tidying.
2565   Make clvmd work around some "bugs" in gulm's node state notifications.
2566   Tidy clvmd's SIGHUP handler
2567
2568 Version 2.01.09 - 4th April 2005
2569 ================================
2570   Add --ignorelockingfailure to vgmknodes.
2571   clvmd: Don't allow user operations to start until the lvm thread is fully up.
2572   clvmd-gulm: set KEEPALIVE on sockets.
2573
2574 Version 2.01.08 - 22nd March 2005
2575 =================================
2576   Add clustered attribute so vgchange can identify clustered VGs w/o locking.
2577   Improve detection of external changes affecting internal cache.
2578   Add 'already in device cache' debug message.
2579   Add -a to pvdisplay -C.
2580   Avoid rmdir opendir error messsages when dir was already removed.
2581   Tighten signal handlers.
2582   Avoid some compiler warnings.
2583   Additional rename failure error message.
2584   read/write may be macros.
2585   clvmd: don't take out lvm thread lock at startup, it only protects jobs list.
2586
2587 Version 2.01.07 - 8th March 2005
2588 ================================
2589   Cope with new devices appearing by rescanning /dev if a uuid can't be found.
2590   Remove DESTDIR from LVM_SHARED_PATH.
2591   clvmd fixes: make FDs close-on-exec
2592                gulm unlocks VG & orphan locks at startup in case they are stale
2593                gulm now unlocks VG & orphan locks if client dies.
2594
2595 Version 2.01.06 - 1st March 2005
2596 ================================
2597   Suppress 'open failed' error messages during scanning.
2598   Option to suppress warnings of file descriptors left open.
2599   Fix default value of metadatacopies in documentation (2->1).
2600   Fix clvmd-gulm locking.
2601   ./configure --enable-debug now enables debugging code in clvmd.
2602   Fix clvmd-gulm node up/down code so it actually works.
2603   clvmd-gulm now releases locks when shut down.
2604
2605 Version 2.01.05 - 18th February 2005
2606 ====================================
2607   Static binary invokes dynamic binary if appropriate.
2608   Make clvmd config check a little more tolerant.
2609   gulm clvmd can now cope with >1 message arriving in a TCP message.
2610
2611 Version 2.01.04 - 9th February 2005
2612 ===================================
2613   Add fixed offset to imported pool minor numbers.
2614   Update binary pathnames in clvmd_init_rhel4.
2615   lvm2cmd.so should skip the check for open fds.
2616   Remove unused -f from pvmove.
2617   Gulm clvmd doesn't report "connection refused" errors.
2618   clvmd does a basic config file sanity check at startup.
2619   Fix potential thread shutdown race in clvmd.
2620
2621 Version 2.01.03 - 1st February 2005
2622 ===================================
2623   More 64-bit display/report fixes.
2624   More informative startup mesg if can't create /etc/lvm.
2625   Fix snapshot device size bug (since 2.01.01).
2626   clvmd announces startup and cluster connection in syslog.
2627   Gulm clvmd doesn't hang trying to talk to a rebooted node.
2628   Gulm clvmd doesn't print cman error on startup.
2629
2630 Version 2.01.02 - 21st January 2005
2631 ===================================
2632   Update clvmd_init_rhel4: use lvm.static and don't load dlm.
2633   Fix some size_t printing.
2634   Fix 64 bit xlate consts.
2635   Split out pool sptype_names to avoid unused const.
2636   Always fail if random id generation fails.
2637   Recognise gnbd devices.
2638   Fix clvmd startup bug introduced in cman/gulm amalgamation.
2639   Improve reporting of node-specific locking errors.
2640
2641 Version 2.01.01 - 19th January 2005
2642 ===================================
2643   Fix clvmd lv_info_by_lvid open_count.
2644   Store snapshot and origin sizes separately.
2645   Update vgcreate man page.
2646
2647 Version 2.01.00 - 17th January 2005
2648 ===================================
2649   Fix vgscan metadata auto-correction.
2650   Only ask libdevmapper for open_count when we need it.
2651   Adjust RHEL4 clvmd init script priority.
2652   Enable building of CMAN & GULM versions of clvmd into a single binary
2653
2654 Version 2.00.33 - 7th January 2005
2655 ==================================
2656   pvcreate wipes first 4 sectors unless given --zero n.
2657   gulm clvmd now uses new ccsd key names.
2658   gulm clvmd now doesn't ignore the first node in cluster.conf
2659   Improve clvmd failure message if it's already running.
2660   Allow user to kill clvmd during initialisation.
2661   Fix off-by-one error in cluster_locking that could cause read hangs.
2662
2663 Version 2.00.32 - 22nd December 2004
2664 ====================================
2665   Drop static/dl restriction for now.
2666   Fix an error fprintf.
2667   Fix vgdisplay -s. Breaks (undocumented) lvs/pvs/vgs -s instead for now.
2668   Fix device reference counting on re-opens.
2669   Ignore sysfs symlinks when DT_UNKNOWN.
2670   Add clvmd init script for RHEL4.
2671   Skip devices that are too small to be PVs.
2672   Fix pvchange -x segfault with lvm2-format orphan.
2673   Cope with empty msdos partition tables.
2674   Add CONTRIBUTORS file.
2675
2676 Version 2.00.31 - 12th December 2004
2677 ====================================
2678   Reopen RO file descriptors RW if necessary.
2679
2680 Version 2.00.30 - 10th December 2004
2681 ====================================
2682   Additional device-handling debug messages.
2683   Additional verbosity level -vvvv includes line numbers and backtraces.
2684   Verbose messages now go to stderr not stdout.
2685   Close any stray file descriptors before starting.
2686   Refine partitionable checks for certain device types.
2687   Allow devices/types to override built-ins.
2688   Fix lvreduce man page .i->.I
2689   Fix vgsplit man page title.
2690   Fix clvmd man makefile.
2691   Extend dev_open logging.
2692   Make clvmd_fix_conf.sh UNDOable.
2693
2694 Version 2.00.29 - 27th November 2004
2695 ====================================
2696   xlate compilation fix.
2697
2698 Version 2.00.28 - 27th November 2004
2699 ====================================
2700   Fix partition table & md signature detection.
2701   Minor configure/makefile tidy.
2702   Export version.h from tools for clvmd.
2703
2704 Version 2.00.27 - 24th November 2004
2705 ====================================
2706   Trap large memory allocation requests.
2707   Fix to partition table detection code.
2708   Improve filter debug mesgs.
2709   Make clvmd_fix_conf.sh UNDOable
2710
2711 Version 2.00.26 - 23rd November 2004
2712 ====================================
2713   Improve pool debugging stats.
2714   Detect partition table signature.
2715   pvcreate wipes md superblocks. (With --uuid or --restorefile it prompts.)
2716   Separate out md superblock detection code.
2717   Prevent snapshot origin resizing.
2718   Improve a vgremove error message.
2719   Update some man pages.
2720   Allow y/n with -ae args (exclusive activation).
2721   Fixes to lvcreate vgname parsing.
2722   Fix dm_name string size calculation.
2723   Improve clvmd error reporting during startup.
2724   Make clvmd cope with large gaps in node numbers IDs.
2725   Make clvmd initialisation cope better with debugging output.
2726   Tidy clvmd socket callbacks so all work happens outside main loop.
2727   clvmd -V now displays lvm version too.
2728   Add optional gulm build for clvmd
2729
2730 Version 2.00.25 - 29th September 2004
2731 =====================================
2732   Fix return code from rm_link for vgmknodes.
2733   Make clvmd LV hash table thread-safe.
2734   Fix clvmd locking so it will lock out multiple users on the same node.
2735   Fix clvmd VG locking to it can cope with multiple VG locks.
2736   Remove spurious trailing dot in lvreduce man page.
2737   Fix vgremove locking.
2738
2739 Version 2.00.24 - 16th September 2004
2740 =====================================
2741   Fix pool_empty so it really does empty the memory pool.
2742   Rename old segtypes files to segtype.
2743   Some fixes to memory debugging code.
2744   Exclude internal commands formats & segtypes from install.
2745
2746 Version 2.00.23 - 15th September 2004
2747 =====================================
2748   Export dm name build & split functions.
2749   Use O_NOATIME on devices if available.
2750   Write log message when each segtype/format gets initialised.
2751   New commands 'segtypes' and 'formats'.
2752   Suppress pvmove abort message in test mode.
2753   Improve pvcreate/remove device not found error message.
2754   Allow pvmove to move data within the same PV.
2755   Describe how pvmove works on man page.
2756   Test for incompatible format/segtype combinations in lv_extend.
2757   Fix lvchange example on man page.
2758
2759 Version 2.00.22 - 3rd September 2004
2760 ====================================
2761   Fix /dev/vgname perms.
2762   Restructure xlate.h.
2763   Add clvmd man page.
2764
2765 Version 2.00.21 - 19th August 2004
2766 ==================================
2767   Update cnxman-socket.h from cman.
2768   Recognise iseries/vd devices.
2769   Use 'make install_cluster' to install cluster extensions only.
2770   Cope with DT_UNKNOWN in sysfs.
2771   Fix extents_moved metadata size comment.
2772   Remove duplicate line in pvremove help text.
2773   Support variable mirror region size.
2774   Support PE ranges in pvmove source PV.
2775   Fixes to as-yet-unused LV segment splitting code.
2776   Change alloc_areas to pe_ranges and allow suppression of availability checks.
2777   Add dev_size column to pvs.
2778   Add report columns for in-kernel device number.
2779
2780 Version 2.00.20 - 3 July 2004
2781 =============================
2782   More autoconf fixes.
2783   Fix device number handling for 2.6 kernels.
2784
2785 Version 2.00.19 - 29 June 2004
2786 ==============================
2787   Reduce severity of setlocale failure message.
2788   Recognise argv[0] "initrd-lvm" (pld-linux).
2789   Make -O2 configurable.
2790   Added --disable-selinux to configure script.
2791   LD_FLAGS->LDFLAGS & LD_DEPS->LDDEPS in configure script.
2792   Add init_debug to clvmd.
2793
2794 Version 2.00.18 - 24 June 2004
2795 ==============================
2796   Fix vgchange activation.
2797   Add cluster support.
2798
2799 Version 2.00.17 - 20 June 2004
2800 ==============================
2801   configure --enable-fsadm to try out fsadm.  fsadm is not tested yet.
2802   Display all filtered devices, not just PVs, with pvs -a.
2803   Fix sync_dir() when no / in filename
2804   vgcfgbackup -f accepts template with %s for VG name.
2805   Extend hash functions to handle non-null-terminated data.
2806   Add local activation support.
2807   Tidy relative paths in makefile includes.
2808   fsadm support for fsck and resizing - needs testing.
2809   Add read-only GFS pool support.
2810   Add lvm2create_initrd script from http://poochiereds.net/svn/lvm2/
2811   Fix rounding of large diplayed sizes.
2812   Suppress decimal point when using units of sectors/bytes.
2813   Additional kernel target checks before pvmove & snapshot creation.
2814   Add i2o_block.
2815
2816 Version 2.00.16 - 24 May 2004
2817 =============================
2818   Set area_count within alloc_lv_segment.
2819   Remove error labels from lvresize.
2820   Fix a pvs error path.
2821   xxchange -ae for exclusive activation.
2822   Don't return non-zero status if there aren't any volume groups.
2823   Add --alloc argument to tools.
2824   Rename allocation policies to contiguous, normal, anywhere, inherit.
2825   nextfree becomes normal; anywhere isn't implemented yet.
2826   LV inherits allocation policy from VG. Defaults: LV - inherit; VG - normal
2827   Additional status character added to vgs to indicate allocation policy.
2828   Add reset_fn to external_locking.
2829   Ensure presence of virtual targets before attempting activating.
2830   Attempt to fix resizing of snapshot origins.
2831   Restructure lvresize, bringing it closer to lvcreate.
2832   A quick sanity check on vg_disk struct when read in.  More checks needed.
2833   Only include visible LVs in active/open counts.
2834   Add virtual segment types, zero and error.  A large sparse device can be
2835 constructed as a writeable snapshot of a large zero segment.
2836   Add --type to lvcreate/resize.
2837   Push lv_create & alloc policy up to tool level.
2838   Fix pvdisplay return code.
2839   Detect invalid LV names in arg lists.
2840   Reporting uses line-at-a-time output.
2841   lvm2 format sets unlimited_vols format flag.
2842   Internal-only metadata flag support.
2843   Basic checking for presence of device-mapper targets.
2844   Separate out polldaemon.
2845   Revise internal locking semantics.
2846   Move find_pv_by_name to library.
2847   Rename move->copy.
2848   Add devices to segments report.
2849   Begin separating out segment code. There's a lot of change here.
2850   Compress any (obsolete) long LVM1 pvids encountered.
2851   Support for tagged config files.
2852   Don't abort operations if selinux present but disabled.
2853   Fix typo in configure which left HAVE_LIBDL unset.
2854
2855 Version 2.00.15 - 19 Apr 2004
2856 =============================
2857   configure --with-owner= --with-group= to avoid -o and -g args to 'install'
2858
2859 Version 2.00.14 - 16 Apr 2004
2860 =============================
2861   Use 64-bit file functions by default.
2862
2863 Version 2.00.13 - 16 Apr 2004
2864 =============================
2865   Set devices/md_component_detection = 1 to ignore devices containing md
2866   superblocks. [Luca Berra]
2867   Ignore error setting selinux file context if fs doesn't support it.
2868
2869 Version 2.00.12 - 14 Apr 2004
2870 =============================
2871   Install a default lvm.conf into /etc/lvm if there isn't one already.
2872   Allow different installation dir for lvm.static (configure --staticdir=)
2873   Fix inverted selinux error check.
2874   Recognise power2 in /proc/devices.
2875   Fix counting in lvs_in_vg_opened. [It ignored devices open more than once.]
2876
2877 Version 2.00.11 - 8 Apr 2004
2878 ============================
2879   Set fallback_to_lvm1 in lvm.conf (or configure --enable-lvm1_fallback)
2880   to run lvm1 binaries if running a 2.4 kernel without device-mapper.
2881
2882 Version 2.00.10 - 7 Apr 2004
2883 ============================
2884   More fixes for static build.
2885   Add basic selinux support.
2886   Fix sysfs detection.
2887
2888 Version 2.00.09 - 31 Mar 2004
2889 =============================
2890   Update copyright notices for Red Hat.
2891   Fix vgmknodes to remove dud /dev/mapper entries. (libdevmapper update reqd).
2892   Add LVM1-style colon output to vgdisplay.
2893   lvchange --refresh to reload active LVs.
2894   Add string display to memory leak dump.
2895   Add locking flags & memlock option.
2896   Add list_versions to library.
2897   Ignore open hidden LVs when checking if deactivation is OK.
2898   Suppress move percentage when device inactive.
2899   Add lv_info_by_lvid.
2900   Various tidy-ups to the build process.
2901   Rebaseline internal verbose level.
2902   Add --nolocking option for read operations if locking is failing.
2903   Add option to compile into a library.
2904   When compiled without libdevmapper, only print warning message once.
2905   Fix lvreduce PV extent calculations.
2906   Fix DESTDIR to work with configure path overrides.
2907   Always use / as config file separator & rename internal config file variables.
2908   Add support for tagging PV/VG/LVs and hosts.
2909   Fix rare bug in recognition of long cmdline argument forms.
2910   Add basic internationalisation infrastructure.
2911   Don't recurse symlinked dirs such as /dev/fd on 2.6 kernels.
2912   Update autoconf files.
2913   Add sysfs block device filtering for 2.6 kernels.
2914   Update refs for move to sources.redhat.com.
2915
2916 Friday 14th November 2003
2917 =========================
2918 Some bug fixes & minor enhancements, including:
2919   Backwards compatibility with LVM1 metadata improved.
2920   Missing man pages written.
2921   Tool error codes made more consistent.
2922   vgmknodes written.
2923   O_DIRECT can be turned off if it doesn't work in your kernel.
2924   dumpconfig to display the active configuration file
2925
2926 You need to update libdevmapper before using 'vgmknodes' or 'vgscan --mknodes'.
2927 If your root filesystem is on an LV, you should run one of those two
2928 commands to fix up the special files in /dev in your real root filesystem
2929 after finishing with your initrd.  Also, remember you can use
2930 'vgchange --ignorelockingfailure' on your initrd if the tool fails because
2931 it can't write a lock file to a read-only filesystem.
2932
2933 Wednesday 30th April 2003
2934 =========================
2935 A pvmove implementation is now available for the new metadata format.
2936
2937 When running a command that allocates space (e.g. lvcreate), you can now
2938 restrict not only which disk(s) may be used but also the Physical Extents
2939 on those disks.  e.g. lvcreate -L 10 vg1 /dev/hda6:1000-2000:3000-4000
2940
2941
2942 Monday 18th November 2002
2943 ========================
2944
2945 The new format of LVM metadata is ready for you to test!
2946   We expect it to be more efficient and more robust than the original format.
2947   It's more compact and supports transactional changes and replication.
2948   Should things go wrong on a system, it's human-readable (and editable).
2949
2950 Please report any problems you find to the mailing list,
2951 linux-lvm@sistina.com.  The software has NOT yet been thoroughly
2952 tested and so quite possibly there'll still be some bugs in it.
2953 Be aware of the disclaimer in the COPYING file.
2954
2955 While testing, we recommend turning logging on in the configuration file
2956 to provide us with diagnostic information:
2957   log {
2958         file="/tmp/lvm2.log"
2959         level=7
2960         activation=1
2961   }
2962
2963 You should schedule regular backups of your configuration file and
2964 metadata backups and archives (normally kept under /etc/lvm).
2965
2966 Please read docs/example.conf and "man lvm.conf" to find out more about
2967 the configuration file.
2968
2969 To convert an existing volume group called vg1 to the new format using
2970 the default settings, use "vgconvert -M2 vg1".  See "man vgconvert".
2971
2972 -M (or --metadatatype in its long form) is a new flag to indicate which
2973 format of metadata the command should use for anything it creates.
2974 Currently, the valid types are "lvm1" and "lvm2" and they can be
2975 abbreviated to "1" and "2" respectively.  The default value for this
2976 flag can be changed in the global section in the config file.
2977
2978 Backwards-compatible support for the original LVM1 metadata format is
2979 maintained, but it can be moved into a shared library or removed
2980 completely with configure's --with-lvm1 option.
2981
2982 Under LVM2, the basic unit of metadata is the volume group.  Different
2983 volume groups can use different formats of metadata - vg1 could use
2984 the original LVM1 format while vg2 used the new format - but you can't
2985 mix formats within a volume group.  So to add a PV to an LVM2-format
2986 volume group you must run "pvcreate -M2" on it, followed by "vgextend".
2987
2988 With LVM2-format metadata, lvextend will let you specify striping
2989 parameters.  So an LV could consist of two or more "segments" - the
2990 first segment could have 3 stripes while the second segment has just 2.
2991
2992 LVM2 maintains a backup of the current metadata for each volume group
2993 in /etc/lvm/backup, and puts copies of previous versions in
2994 /etc/lvm/archive.  "vgcfgbackup" and "vgcfgrestore" can be used to
2995 create and restore from these files.  If you fully understand what
2996 you're doing, metadata can be changed by editing a copy of a current
2997 backup file and using vgcfgrestore to reload it.
2998
2999 Please read the pvcreate man page for more information on the new
3000 format for metadata.
3001
3002 All tools that can change things have a --test flag which can be used
3003 to check the effect  of a set of cmdline args without really making the
3004 changes.
3005
3006
3007 What's not finished?
3008 ====================
3009 The internal cache.  If you turn on debugging output you'll see lots of
3010 repeated messages, many of which will eventually get optimised out.
3011
3012 --test sometimes causes a command to fail (e.g. vgconvert --test) even
3013 though the real command would work: again, fixing this is waiting for
3014 the work on the cache.
3015
3016 Several of the tools do not yet contain the logic to handle full
3017 recovery: combinations of pvcreate and vgcfgrestore may sometimes be
3018 needed to restore metadata if a tool gets interrupted or crashes or
3019 finds something unexpected.  This applies particularly to tools that
3020 work on more than one volume group at once (e.g. vgsplit).
3021
3022 Display output.  Some metadata information cannot yet be displayed.
3023
3024 Recovery tools to salvage "lost" metadata directly from the disks:
3025 but we hope the new format will mean such tools are hardly ever needed!