WHATS_NEW

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