WHATS_NEW

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