WHATS_NEW

   1 Version 2.02.97 -
   2 ===============================
   3   Improve documention of allocation policies in lvm.8.
   4   Increase limit for major:minor to 4095:1048575 when using -My option.
   5   Add make install_systemd_generators.
   6   Add generator for lvm2 activation systemd units.
   7   Add lvm_config_find_bool lvm2app fn to retrieve bool value from config tree.
   8   Respect --test also when using lvmetad.
   9   No longer capitalise first LV attribute char for invalid snapshots.
  10   Allow vgextend to add PVs to a VG that is missing PVs.
  11   Recognise Micron PCIe SSDs in filter and move array out to device-types.h.
  12   Fix segfault when attempting to replace RAID 4/5/6 device (2.02.97).
  13   Fix dumpconfig <node> to print only <node> without its siblings (2.02.89).
  14   Do not issue "Failed to handle a client connection" error if lvmetad killed.
  15   Support changing of discard and zeroing for thin pool.
  16   Report used discard for thin pool and volume.
  17   Add support for controlling discard behavior of thin pool.
  18   Detect features for new 1.1 thin pool target.
  19   Count percentage of completeness upwards when merging a snapshot volume.
  20   Skip activation when using vg/lvchange --sysinit -a ay and lvmetad is active.
  21   Fix extending RAID 4/5/6 logical volumes
  22   Fix test for PV with unknown VG in process_each_pv to ignore ignored mdas.
  23   Update man pages with --activate ay option and auto_activation_volume_list.
  24   Fix _alloc_parallel_area to avoid picking already-full areas for raid devices.
  25   Use vgchange -aay instead of vgchange -ay in clmvd init script.
  26   Add activation/auto_activation_volume_list to lvm.conf.
  27   Add --activate ay to lvcreate, lvchange, pvscan and vgchange.
  28   Add support for volume autoactivation using lvmetad.
  29   Add --activate synonym for --available arg and prefer --activate.
  30   Never issue discards when LV extents are being reconfigured, not deleted.
  31   Allow release_lv_segment_area to fail as functions it calls can fail.
  32   Open device read-only to obtain readahead value.
  33   Fix lvconvert error path NULL pointer dereference.
  34   Check for create_instance() fail in pvscan_lvmetad_single().
  35   Use 64bit math for reserved memory and stack.
  36   Add tests for kernel_send() errors in cmirrod.
  37   Print clean_bits in pull_state, fix cut&paste typo in cmirrord.
  38   Add tests for errors from closedir(), close() in cmirrord.
  39   Fix missing sync of filesystem when creating thin volume snapshot.
  40
  41 Version 2.02.96 - 8th June 2012
  42 ===============================
  43   Upstream source repo now fedorahosted.org git not sources.redhat.com CVS.
  44   Fix error paths for regex filter initialization.
  45   Re-enable partial activation of non-thin LVs until it can be fixed. (2.02.90)
  46   Fix alloc cling to cling to PVs already found with contiguous policy.
  47   Fix cling policy not to behave like normal policy if no previous LV seg.
  48   Fix allocation loop not to use later policies when --alloc cling without tags.
  49   Append _TO_LVSEG to names of internal A_CONTIGUOUS and A_CLING flags.
  50   Add missing pkg init --with-systemdsystemunitdir in configure.in (2.02.92).
  51   Fix division by zero if PV with zero PE count is used during vgcfgrestore.
  52   Add initial support for thin pool lvconvert.
  53   Fix lvrename for thin volumes (regression in for_each_sub_lv). (2.02.89)
  54   Fix up-convert when mirror activation is controlled by volume_list and tags.
  55   Warn of deadlock risk when using snapshots of mirror segment type.
  56   Fix bug in cmirror that caused incorrect status info to print on some nodes.
  57   Remove statement that snapshots cannot be tagged from lvm man page.
  58   Disallow changing cluster attribute of VG while RAID LVs are active.
  59   Fix lvconvert error message for non-mergeable volumes.
  60   Allow subset of failed devices to be replaced in RAID LVs.
  61   Prevent resume from creating error devices that already exist from suspend.
  62   Improve clmvd singlenode locking for better testing.
  63   Update and correct lvs man page with supported column names.
  64   Handle replacement of an active device that goes missing with an error device.
  65   Change change raid1 segtype always to request a flush when suspending.
  66   Add udev info and context to lvmdump.
  67   Add lvmetad man page.
  68   Fix RAID device replacement code so that it works under snapshot.
  69   Fix inability to split RAID1 image while specifying a particular PV.
  70   Update man pages to give them all the same look&feel.
  71   Fix lvresize of thin pool for striped devices.
  72   For lvresize round upward when specifying number of extents.
  73   For lvcreate with %FREE support rounding downward stripe alignment.
  74   Change message severity to log_very_verbose for missing dev info in udev db.
  75   Fix lvconvert when specifying removal of a RAID device other than last one.
  76   Fix ability to handle failures in mirrored log in dmeventd plugin. (2.02.89)
  77   Fix unlocking volume group in vgreduce in error path.
  78   Cope when VG name is part of the supplied name in lvconvert --splitmirrors -n.
  79   Fix exclusive lvchange running from other node. (2.02.89)
  80   Add 'vgscan --cache' functionality for consistency with 'pvscan --cache'.
  81   Keep exclusive activation in pvmove if LV is already active.
  82   Disallow exclusive pvmove if some affected LVs are not exclusively activated.
  83   Remove unused and wrongly set cluster VG flag from clvmd lock query command.
  84   Fix pvmove for exclusively activated LV pvmove in clustered VG. (2.02.86)
  85   Always free hash table on update_pvid_to_vgid() in lvmetad.
  86   Update and fix monitoring of thin pool devices.
  87   Check hash insert success in lock_vg in clvmd.
  88   Check for buffer overwrite in get_cluster_type() in clvmd.
  89   Fix global/detect_internal_vg_cache_corruption config check.
  90   Update lcov Makefile target to support all dmeventd plugins.
  91   Fix initializiation of thin monitoring. (2.02.92)
  92   Cope with improperly formatted device numbers in /proc/devices. (2.02.91)
  93   Exit if LISTEN_PID environment variable incorrect in lvmetad systemd handover.
  94   Use pvscan --cache instead of vgscan in lvmetad scripts.
  95   Fix fsadm propagation of -e option.
  96   Fix fsadm parsing of /proc/mounts files (don't check for substrings).
  97   Fix fsadm usage of arguments with space.
  98   Fix arg_int_value alongside ARG_GROUPABLE --major/--minor for lvcreate/change.
  99   Fix name conflicts that prevent down-converting RAID1 when specifying a device
 100   Improve thin_check option passing and use configured path.
 101   Add --with-thin-check configure option for path to thin_check.
 102   Fix error message when pvmove LV activation fails with name already in use.
 103   Better structure layout for device_info in dev_subsystem_name().
 104   Change message severity for creation of VG over uninitialised devices.
 105   Fix error path for failed toolcontext creation.
 106   Detect lvm binary path in lvmetad udev rules.
 107   Don't unlink socket on lvmetad shutdown if instantiated from systemd.
 108   Restart lvmetad automatically from systemd if it exits from uncaught signal.
 109   Fix warn msg for thin pool chunk size and update man for chunksize. (2.02.89)
 110
 111 Version 2.02.95 - 6th March 2012
 112 ================================
 113   If unspecified, adjust thin pool metadata and chunk size to fit into 128MB.
 114   Print just warning on thin pool check callback path for failing check.
 115   Always use 64bit arithmetic with VG extent_size expression.
 116   Validate udev structures in _insert_udev_dir().
 117   Take repeatable --major --minor with pvscan --cache instead of major:minor.
 118   Scan all devices for lvmetad if 'pvscan --cache' used without device list.
 119   Populate lvmcache from lvmetad before displaying PVs in pvscan. (2.02.94)
 120   Suppress incorrect -n pvscan warning now always displayed. (2.02.94)
 121
 122 Version 2.02.94 - 3rd March 2012
 123 ================================
 124   Add support to execute thin_check with each de/active of thin pool.
 125   Fix automatic estimation of metadata device size for thin pool.
 126   Test for alloc fail from _alloc_pv_segment() in _extend_pv().
 127   Check for alloc fail from get_segtype_from_string() in _lvcreate_params().
 128   Add _rimage as reserved suffix to lvm.8 man page.
 129   Improve error logging from mpath filter.
 130   Check for allocation failure in hold_lock() in clvmd.
 131   Use set_lv() (wipe initial 4KiB) for non zeroed thin volume.
 132   Allow cluster mirrors to handle the absence of the checkpoint lib (libSaCkpt).
 133   Revert free of allocated segtype in init segment error path (2.02.89).
 134   Test dm_hash_insert() failures in filter-persistent.c and fid_add_mda().
 135   Ensure clvmd message is always NUL-terminated after read.
 136   Add some close() and dev_close() error path backtraces.
 137   Set stdin/stdout/stderr to /dev/null for polldaemon.
 138   Limit the max size of processed clvmd message to ~8KB.
 139   Do not send uninitialised bytes in cluster error reply messages.
 140   Use unsigned type for bitmask instead of enum type for lvm properties.
 141   Add missing cleanup of excl_uuid hash on some exit paths of clvmd.
 142   Check for existence of vg_name in _format1/_pool_vg_read().
 143   Fix missing break in _format_pvsegs (2.02.92).
 144   Test seg pointer for non-null it in raid_target_percent error path.
 145   Check for errors in _init_tags() during config loading.
 146   Always check result of _set_vg_name() in lvcreate.
 147   Drop unused call to uname() during clvmd initialization.
 148   Test allocation result in sysfs filter creation.
 149   Limit sscanf parameters with buffer size in clvmd get_initial_state().
 150   Use const lv pointer for lv_is_active...() functions.
 151   Use same signed numbers in _mirrored_transient_status().
 152   Support 'pvscan --cache' to update lvmetad state from specific PVs.
 153   Provide new metadata daemon for testing with configure --enable-lvmetad .
 154   Integrate client-side lvmetad into build.
 155
 156 Version 2.02.93 - 23rd February 2012
 157 ====================================
 158   Require number of stripes to be greater than parity devices in higher RAID.
 159   Fix allocation code to allow replacement of single RAID 4/5/6 device.
 160   Check all tags and LV names are in a valid form in vg_validate.
 161   Add tmpfiles.d style configuration for lvm2 lock and run directory.
 162   Add configure --with-tmpfilesdir for dir holding volatile-file configuration.
 163   Allow 'lvconvert --repair' to operate on RAID 4/5/6.
 164   Fix build_parallel_areas_from_lv to account correctly for raid parity devices.
 165   Print message when faulty raid devices have been replaced.
 166
 167 Version 2.02.92 - 20th February 2012
 168 ====================================
 169   Read dmeventd monitoring config settings for every lvm command.
 170   For thin devices, initialize monitoring only for thin pools not thin volumes.
 171   Make conversion from a synced 'mirror' to 'raid1' not cause a full resync.
 172   Properly test buffer for unit check in units_to_bytes().
 173   Add configure --with-systemdsystemunitdir.
 174   Add check for allocation failure in _build_matcher().
 175   Add check for rimage name allocation failure in _raid_add_images().
 176   Add check for mda_copy failure in _text_pv_setup().
 177   Add check for _mirrored_init_target failure.
 178   Add free_orphan_vg.
 179   Skip pv/vg_set_fid processing if the fid is same.
 180   Check for foreach loop errors in _vg_read_orphans() (2.02.91).
 181   Clean error paths for format instance creation (2.02.91).
 182   Release vg in error path of _format1_vg_read() instead of just free().
 183   Report allocation failure for allocation of PV structure.
 184   Add clvmd init dependency on dlm service when running with new corosync.
 185
 186 Version 2.02.91 - 12th February 2012
 187 ====================================
 188   Remove PV-based format instances (which are no longer needed).
 189   Link all orphan PVs directly to a per-format global orphan VG.
 190   Refactor lvmcache around an internal API.
 191   Stop processing lvextend if trying to extend a mirror that is being recovered.
 192   Add pool_below_threshold() function to check thin pool percent status.
 193   Fix test for snap percent for failing merge when removing LV.
 194   Switch int to void return for str_list_del().
 195   Fix error path handling in _build_desc().
 196   Add range test for device number in _scan_proc_dev().
 197   Use signed long for sysconf() call in cmirrord.
 198   Do not write in front of log buffer in print_log().
 199   Add boundary test for number of mirror devs and logs.
 200   Check that whole locking_dir fits _lock_dir buffer in init_file_locking().
 201   Use list functions for label_exit().
 202   Ensure strncpy() function always ends with '\0'.
 203   Set status in _fsadm_cmd() for error path.
 204   Add missing deps for lvm2api for rebuild when lvm-internal is changed.
 205   Fix resource leaks for failing allocation of formats (lvm1/2,pool).
 206   Release allocated resources in error path for composite_filter_create().
 207   Do not use lstat() results when failed in _rm_link().
 208   Remove a "waiting for another thread" log message from dmeventd plugins.
 209
 210 Version 2.02.90 - 1st February 2012
 211 ===================================
 212   sync_local_dev_names before (re)activating mirror log for initialisation.
 213   Disable partial activation for thin LVs and LVs with all missing segments.
 214   Do not print warning for pv_min_size between 512KB and 2MB.
 215   Clean up systemd unit ordering and requirements.
 216   Fix lcov reports when srcdir != builddir.
 217   Allow ALLOC_NORMAL to track reserved extents for log and data on same PV.
 218   Automatically detect whether corosync clvmd needs to use confdb or cmap.
 219   Fix data% report for thin volume used as origin for non-thin snapshot.
 220
 221 Version 2.02.89 - 26th January 2012
 222 ===================================
 223   Add missing check for uname result in clvmd TEST processing.
 224   Fix memleak in target_version() error path (unsupported LIST_VERSIONS).
 225   Limit data_alignment and data_alignment_offset to 32bit values.
 226   Check for correctness of uint64 dev_size value in format_text.
 227   Thin pools have segment fields thin_count, zero, transaction_id.
 228   Add data_percent and metadata_percent for thin pools to lvs -v.
 229   Add data_lv & metadata_lv fields to lvs for thin pools.
 230   Add data_percent & pool_lv fields to lvs for thin volumes.
 231   Rename origin_only parm to use_layer for lv_info and use with thin LVs.
 232   Add lv_thin_pool_transaction_id to read the transaction_id value.
 233   Use {suspend,resume}_origin_only when up-converting RAID, as mirrors do.
 234   Always add RAID metadata LVs to deptree (even when origin_only is set).
 235   Change exclusive LV activation logic to try local node before remote nodes.
 236   Add CLVMD_FLAG_REMOTE to skip processing on local node.
 237   Prompt if request is made to remove a snapshot whose "Merge failed".
 238   Allow removal of an invalid snapshot that was to be merged on next activation.
 239   Don't allow a user to merge an invalid snapshot.
 240   Use m and M lv_attr to indicate that a snapshot merge failed in lvs.
 241   Differentiate between snapshot status of "Invalid" and "Merge failed".
 242   Report snapshot usage percent of origin volume when a snapshot is merging.
 243   Require global/lvdisplay_shows_full_device_path for (bogus) lvm1-style paths.
 244   Do not report linear segtype for non-striped targets.
 245   Record creation host & time for each LV and report as lv_time & lv_host.
 246   Make error message hit when preallocated memlock memory exceeded clearer.
 247   Use R lv_attr to indicate read-only activation of non-read-only device in lvs.
 248   Show read-only activation override in lvdisplay & add 4 to perms in -c.
 249   Add activation/read_only_volume_list to override LV permission in metadata.
 250   Give priority to emcpower devices with duplicate PVIDs.
 251   Add check for error in _adjust_policy_params() (lvextend --use-policies).
 252   Round specified percentages upwards (%LV, %VG...) when resizing LVs.
 253   Use dmeventd_lvm2_command in dmeventd plugins snapshot, raid, mirror.
 254   Add helper dmeventd_lvm2_command() to libdevmapper-event-lvm2 library.
 255   Update documentation for dmeventd.
 256   Remove unnecessary stat before opening device in dev_open_flags.
 257   Reduce number of lstat calls when selecting device alias.
 258   Add _dev_init to initialize common struct device members.
 259   Always zalloc struct device during initialization.
 260   Fix missing thread list manipulation protection in dmeventd.
 261   Do not derefence lv pointer in _percent_run() function before NULL check.
 262   Allow empty strings for description and creation_host config fields.
 263   Issue deprecation warning when removing last lvm1-format snapshot.
 264   Reinstate support for snapshot removal with lvm1 format. (2.02.86)
 265   Add policy-based automated repair of RAID logical volumes.
 266   Don't allow two images to be split and tracked from a RAID LV at one time.
 267   Don't allow size change of RAID LV that is tracking changes for a split image.
 268   Don't allow size change of RAID sub-LVs independently.
 269   Don't allow name change of RAID LV that is tracking changes for a split image.
 270   Do not allow users to change the name of RAID sub-LVs independently.
 271   Do not allow users to change permissions on RAID sub-LVs.
 272   Allow lvconvert to replace specified devices in a RAID array.
 273   Add activation/use_linear_target enabled by default.
 274   Use gcc warning options only with .c to .o compilation.
 275   Move y/n prompts to stderr and repeat if response has both 'n' and 'y'.
 276   Replace the unit testing framework with CUnit (--enable-testing).
 277   Fix dmeventd snapshot monitoring when multiple extensions were involved.
 278   Don't ignore configure --mandir and --infodir.
 279   Drop pool memory allocated within lv_has_target_type().
 280   Reduce stack allocation of some PATH_MAX sized char buffers.
 281   Unlock memory before writing metadata.
 282   Add query before removing snapshots when inactive snapshot origin is removed.
 283   Allow changing availability state of snapshots.
 284   Skip non-virtual snapshots for availability change for lvchange with vg name.
 285   Skip adjusting mirror region size unless mirror or raid.
 286   Reorder prompt conditions for removal of active volumes.
 287   Avoid 'mda inconsistency' by properly registering UNLABELLED_PV flag.(2.02.86)
 288   Fix --enable-static_link unless using --enable-dmeventd / --enable-udev_sync.
 289   Move gentoo MAKEDEV to /sbin in lvm2create_initrd.
 290   Add filter to avoid scan of device if it is part of active multipath.
 291   Add missing default $LVM_VG_NAME usage for snapshots.
 292   Avoid extent_count overflow with lvextend.
 293   Add missing lvrename mirrored log recursion in for_each_sub_lv.
 294   Improve lv_extend stack reporting.
 295   Increase virtual segment size instead of creating multiple segment list.
 296   Add last_seg(lv) internal function.
 297   Support empty string for log/prefix.
 298   Disallow mirrored logs for cluster mirrors. (2.02.72)
 299   Don't print char type[8] as a plain string in pvck PV type.
 300   Use vg memory pool implicitly for vg read.
 301   Always use vg memory pool for allocated lv segment.
 302   Remove extra 4kB buffer allocated on stack in print_log().
 303   Make move_lv_segment non-static function and use dm_list function.
 304   Pass exclusive LV locks to all nodes in the cluster.
 305   Improve lvcreate chunksize man page description.
 306   Improve man page style for lvcreate & lvs.
 307   Avoid recursive calls to dmeventd in its LVM plugins.
 308   Log dev name now returned to kernel for registering during cmirror CTR.
 309   Fix lv_info open_count test for disabled verify_udev_operations. (2.02.86)
 310   Simplify code for lvm worker thread in clvmd.
 311   Use pthread_barrier to synchronize clvmd threads at startup.
 312   Limit clvmd's thread size to 128KiB and ignore activation/reserved_stack.
 313   Reduce default preallocated stack size to 64KiB.
 314   Add check for access through NULL pointer when refresh_filter() fails.
 315   Use pthread condition for SINGLENODE lock implementation.
 316   Improve backtrace reporting for some dev_manager_ functions.
 317   Change message severity to log_warn when symlink creation fails.
 318   Add ability to convert mirror segtype to RAID1 segtype.
 319   Add ability to convert from linear to RAID1.
 320   Add ability to extend mirrors with '--nosync' option.
 321   Fix splitmirror LV names to maintain consistent state in a cluster.
 322   Apply appropriate udev flags when suspending/resuming mirror sub-LVs.
 323   Fix vgsplit to handle mirrored logs.
 324   Clarify multi-name device filter pattern matching explanation in lvm.conf.
 325   Introduce revert_lv for better pvmove cleanup.
 326   Replace incomplete pvmove activation failure recovery code with a message.
 327   Abort if _finish_pvmove suspend_lvs fails instead of cleaning up incompletely.
 328   Change suspend_lvs to call vg_revert internally.
 329   Change vg_revert to void and remove superfluous calls after failed vg_commit.
 330   Use execvp for CLVMD restart to preserve environment settings.
 331   Restart CLVMD with same cluster manager.
 332   Fix log_error() usage in raid and unknown segtype initialisation.
 333   Improve testing Makefile.
 334   Fix install_ocf make target when srcdir != builddir. (2.02.80)
 335   Support env vars LVM_CLVMD_BINARY and LVM_BINARY in clvmd.
 336   Fix restart of clvmd (preserve exlusive locks). (2.02.64)
 337   Add 'Volume Type' lv_attr characters for RAID and RAID_IMAGE.
 338   Add activation/retry_deactivation to lvm.conf to retry deactivation of an LV.
 339   Replace open_count check with holders/mounted_fs check on lvremove path.
 340   Disallow the creation of mirrors (mirror or raid1 segtype) with only one leg.
 341   Cleanup restart clvmd code (no memory allocation, debug print passed args).
 342   Add all exclusive locks to clvmd restart option args.
 343   Always send the whole clvmd packet header in refresh commands.
 344   Add missing error checks for some system calls in cmirrord.
 345   Add missing log_error() to lvresize command when fsadm tool fails.
 346   Add support for DM_DEV_DIR device path into fsadm script.
 347   Support different PATH setting for fsadm script testing.
 348   Surround all executed commands with quotes in fsadm script.
 349   Fix missing '$' in test for content of "$LVM" in fsadm script.
 350   Move debug message in exec_cmd after sync_local_dev_names.
 351   Fix clvmd processing of invalid request on local socket.
 352   Fix command line option decoding.
 353   Reset LV status when unlinking LV from VG.
 354   Fix overly-strict extent-count divisibility requirements for striped mirrors.
 355   Fix rounding direction in lvresize when reducing volume size.
 356   Fix possible overflow of size if %FREE or %VG is used.
 357   Fix vgchange activation of snapshot with virtual origin.
 358   Activate virtual snapshot origin exclusively (only on local node in cluster).
 359   Fix lv_mirror_count to handle mirrored stripes properly.
 360   Fix failure to down-convert a mirror to linear due to udev "dev open" conflict
 361   Fix mirrored log creation when PE size is small: use log_size >= region_size.
 362   Fix log size calculation when only a log is being added to a mirror.
 363   Add 7th lv_attr char to show the related kernel target.
 364   Terminate pv_attr field correctly. (2.02.86)
 365   Fix 'not not' typo in pvcreate man page.
 366   Improve man page style for fsadm, lvreduce, lvremove, lvrename & lvresize.
 367   Support break for vgchange and vgrefresh operation.
 368   Switch int to unsigned type for pvmetadatacopies for pv_create().
 369   Replace :space: with [\t ] for awk in vgimportclone (not widely supported).
 370   Begin using 64-bit status field flags.
 371   Detect sscanf recovering_region input error in cmirrord pull_state().
 372   Fix error path bitmap leak in cmirrord import_checkpoint().
 373   Log unlink() error in cmirrord remove_lockfile().
 374   Remove incorrect requirement for -j or -m from lvchange error message.
 375   Fix unsafe table load when splitting off smaller mirror from a larger one.
 376   Use size_t return type for text_vg_export_raw() and export_vg_to_buffer().
 377   Add configure --enable-lvmetad for building the (experimental) LVMetaD.
 378   Fix resource leak when strdup fails in _get_device_status() (2.02.85).
 379   Directly allocate buffer memory in a pvck scan instead of using a mempool.
 380   Add configure --with-thin for segtypes "thin" and "thin_pool".
 381   Fix raid shared lib segtype registration (2.02.87).
 382
 383 Version 2.02.88 - 19th August 2011
 384 ==================================
 385   Remove incorrect 'Breaking' error message from allocation code. (2.02.87)
 386   Add lvconvert --merge support for raid1 devices split with --trackchanges.
 387   Support lvconvert of -m1 raid1 devices to a higher number.
 388   Add --trackchanges support to lvconvert --splitmirrors option for raid1.
 389   Support splitting off a single raid1 rimage in lvconvert --splitmirrors.
 390   Use sync_local_dev_names when reducing number of raid rimages in lvconvert.
 391   Add -V as short form of --virtualsize in lvcreate.
 392   Fix make clean not to remove Makefile.  (2.02.87)
 393
 394 Version 2.02.87 - 12th August 2011
 395 ==================================
 396   Fix make distclean to remove stray dmeventd and exported symbols files.
 397   Add global/detect_internal_vg_cache_corruption to lvm.conf.
 398   Use memory pool locking to check for corruption of internal VG structs.
 399   Cache and share generated VG structs.
 400   Fix possible format instance memory leaks and premature releases in _vg_read.
 401   Suppress locking error messages in monitoring init scripts.
 402   If pipe in clvmd fails return busy instead of using uninitialised descriptors.
 403   Add ability to reduce the number of mirrors in raid1 arrays to lvconvert.
 404   Add dmeventd plugin for raid.
 405   Replace free_vg with release_vg and move it to vg.c.
 406   Remove INCONSISTENT_VG flag from the code.
 407   Remove lock from cache in _lock_vol even if unlock fails.
 408   Initialise clvmd locks before lvm context to avoid open descriptor leaks.
 409   Remove obsolete gulm clvmd cluster locking support.
 410   Suppress low-level locking errors and warnings while using --sysinit.
 411   Remove unused inconsistent_seqno variable in _vg_read().
 412   Remove meaningless const type qualifiers on cast type.
 413   Add test for fcntl error in singlenode client code.
 414   Remove --force option from lvrename manpage.
 415   Add global/mirror_segtype_default to pick md raid or dm mirror as default.
 416   Add configure --with-raid for new segtype 'raid' for MD RAID 1/4/5/6 support.
 417   Change DEFAULT_UDEV_SYNC to 1 so udev_sync is used if there is no config file.
 418   Add systemd unit file to provide lvm2 monitoring.
 419   Compare file size (as well as timestamp) to detect changed config file.
 420
 421 Version 2.02.86 - 8th July 2011
 422 ===============================
 423   Remove unnecessary warning in pvcreate for MD linear devices.
 424   Move snapshot removal activation logic into lib/activate.
 425   Cope with a PV only discovered missing when creating deptree.
 426   Abort operation if dm_tree_node_add_target_area fails.
 427   Add activation/checks to lvm.conf to perform additional ioctl validation.
 428   Always preload on suspend, even if no metadata changed (lvchange --refresh).
 429   When suspending, automatically preload newly-visible existing LVs.
 430   Teardown any stray devices with $COMMON_PREFIX during test runs.
 431   Reinstate correct permissions when creating mirrors. [2.02.85]
 432   Append 'm' attribute to pv_attr for missing PVs.
 433   Annotate CLVMD_CMD_SYNC_NAMES in decode_cmd.
 434   Remove enforcement of udev verification when using non-standard /dev location.
 435   Keep an exclusive mirror non-clustered if reloaded e.g. during conversion.
 436   Reject allocation if number of extents is not divisible by area count.
 437   Fix cluster mirror creation to work with new mirror allocation algorithm.
 438   Ignore activation/verify_udev_operations if dm kernel driver vsn < 4.18.
 439   Add activation/verify_udev_operations to lvm.conf, disabled by default.
 440   Call vg_mark_partial_lvs() before VG structure is returned from the cache.
 441   Remove unused internal flag ACTIVATE_EXCL from the code.
 442   Remove useless test of ACTIVATE_EXCL in lv_add_mirrors() clustered code path.
 443   Add lv_activate_opts structure for activation (replacing activation flags).
 444   Ignore inconsistent pre-commit metadata on MISSING_PV devs while activating.
 445   Add proper udev library context initialization and finalization to liblvm.
 446   Fix last snapshot removal to avoid table reload while a device is suspended.
 447   Use dm_get_suspended_counter in replacement critical_section logic.
 448   Downgrade critical_section errors to debug level until it is moved to libdm.
 449   Fix ignored background polling default in vgchange -ay.
 450   Fix pvmove activation sequences to avoid trapped I/O with multiple LVs.
 451   Annotate critical section debug messages.
 452   Fix reduction of mirrors with striped segments to always align to stripe size.
 453   Validate mirror segments size.
 454   Include lvmetad development code in tree.
 455   Fix extent rounding for striped volumes never to reduce more than requested.
 456   Fix create_temp_name to replace any '/' found in the hostname with '?'.
 457   Always use append to file in lvmdump. selinux policy may ban file truncation.
 458   Propagate test mode to clvmd to skip activation and changes to held locks.
 459   Defer writing PV labels until vg_write.
 460   Store label_sector only in struct physical_volume.
 461   Permit --available with lvcreate so non-snapshot LVs need not be activated.
 462   Report sector containing label in verbose message.
 463   Clarify error message when unable to convert an LV into a snapshot of an LV.
 464   Add and use dev_open_readonly and variations.
 465   Do not log a superfluous stack message when the lv is properly processed.
 466   Do not issue an error message when unable to remove .cache on read-only fs.
 467   Avoid memlock size mismatch by preallocating stdio line buffers.
 468   Rewrite vgreduce --removemissing --force to share lvconvert code.
 469   Reorganize lvconvert --repair code to allow reuse.
 470
 471 Version 2.02.85 - 29th April 2011
 472 =================================
 473   Add new obtain_device_list_from_udev setting to lvm.conf.
 474   Obtain device list from udev by default if LVM2 is compiled with udev support.
 475   Add test for vgimportclone and querying of vgnames with duplicate pvs.
 476   Avoid use of released memory when duplicate PV is found.
 477   Add "devices/issue_discards" to lvm.conf.
 478   Issue discards on lvremove and lvreduce etc. if enabled and supported.
 479   Add seg_pe_ranges and devices fields to liblvm.
 480   Fix incorrect tests for dm_snprintf() failure.
 481   Fix some unmatching sign comparation gcc warnings in the code.
 482   Support lv_extend() on empty LVs.
 483   Avoid regenerating cache content when exported VG buffer is unchanged.
 484   Extend the set of memory regions that are not locked to memory.
 485   Workaround some problems when compiled for valgrind memcheck.
 486   Support controlled quit of the lvm_thread_fn function in clvmd.
 487   Fix reading of unallocated memory in lvm1 format import function.
 488   Replace several strncmp() calls with id_equal().
 489   Fix lvmcache_info transfer to orphan_vginfo in _lvmcache_update_vgname().
 490   Fix -Wold-style-definition gcc warnings.
 491   Rename MIRROR_NOTSYNCED to LV_NOTSYNCED.
 492   Fix _move_lv_segments to handle empty LVs.
 493   Fixes for lvconvert (including --repair) of temporary mirror stacks.
 494   Avoid potential loop when removing mirror images.
 495   Fix mirror removal always to take account of preferences as to which.
 496   Fix MIRRORED flag usage.
 497   Remove error messages issued by device_is_usable when run as non-root.
 498   Add missing \0 for grown debug object in _bitset_with_random_bits().
 499   Fix allocation of system_id buffer in volume_group structure.
 500   Fix readlink usage inside get_primary_dev().
 501   Use format instance mempool where possible and adequate.
 502   Call destroy_instance for any PVs found in VG structure during vg_free call.
 503   Add new free_pv_fid fn and use it throughout to free all attached fids.
 504   Use only vg_set_fid and new pv_set_fid fn to assign the format instance.
 505   Make create_text_context fn static and move it inside create_instance fn.
 506   Add mem and ref_count fields to struct format_instance for own mempool use.
 507   Use new alloc_fid fn for common format instance initialisation.
 508   Optimise _get_token() and _eat_space().
 509   Add _lv_postorder_vg() to improve efficiency for all LVs in VG.
 510   Add gdbinit script for debugging.
 511   Use hash tables to speedup string search in vg_validate().
 512   Refactor allocation of VG structure adding alloc_vg().
 513   Avoid possible endless loop in _free_vginfo when 4 or more VGs have same name.
 514   Use empty string instead of /dev// for LV path when there's no VG.
 515   Don't allocate unused VG mempool in _pvsegs_sub_single.
 516   Do not send uninitialised bytes in local clvmd messages.
 517   Support --help option for clvmd and return error for unknown option.
 518   Avoid reading freed memory when printing LV segment type.
 519   Fix syslog initialisation in clvmd to respect lvm.conf setting.
 520   Fix possible overflow in maximum stripe size and physical extent size.
 521   Improve pvremove error message when PV belongs to a VG.
 522   Extend normal policy to allow mirror logs on same PVs as images if necessary.
 523   Improve cling policy to recognise PVs already used during the transaction.
 524   Improve normal allocation algorithm to include clinging to existing areas.
 525   Add allocation/maximise_cling & mirror_logs_require_separate_pvs to lvm.conf.
 526   Adapt metadata balancing code to work with metadata handling changes.
 527   Add old_id field to physical_volume and fix pvchange -u for recent changes.
 528   Allow pvresize on a PV with two metadata areas.
 529   Change pvcreate to use new metadata handling interface.
 530   Restructure existing pv_setup and pv_write and add pv_initialise.
 531   Add internal interface to support adding and removing metadata areas.
 532   Allow internal indexing of metadata areas (PV id + mda order).
 533   Generalise internal format_instance infrastrusture for PV and VG use.
 534   Handle decimal digits with --units instead of ignoring them silently.
 535   Fix remaining warnings and compile with -Wpointer-arith.
 536   Fix gcc warnings for unused variables and const casts.
 537   Add stack backtraces for error paths in process_each_lv().
 538   Temporarily suppress error from calling yes_no_prompt while locks are held.
 539   Replace void* with char* arithmetic in _text_write, _text_read & send_message.
 540   Fix compilation without DEVMAPPER_SUPPORT.
 541   Remove fs_unlock() from lv_suspend error path.
 542   Allow memory to stay locked between leaving and re-entering critical sections.
 543   Rename memlock to critical_section throughout.
 544   Make pv_min_size configurable and increase to 2048KB to exclude floppy drives.
 545   Add find_config_tree_int64 to read 64-bit ints from config.
 546   Ensure resuming exclusive cluster mirror continues to use local mirror target.
 547   Clear temporary postorder LV status flags to allow re-use with same LV struct.
 548   Remove invalid snapshot umount mesg which floods syslog from dmeventd plugin.
 549   Add extended examples to pvmove man page.
 550   Support LVM_TEST_DEVDIR env var for private /dev during testing.
 551
 552 Version 2.02.84 - 9th February 2011
 553 ===================================
 554   Fix CRC32 calculation on big endian CPU (2.02.75).
 555
 556 Version 2.02.83 - 4th February 2011
 557 ===================================
 558   Allow exclusive activation of snapshots in a cluster.
 559   Leave EX lock unchanged when suspending a device in clvmd.
 560   Use sync_dev_names in unlock_vg macro for cluster-wide dev name sync.
 561   Fix fs operation stack handling when multiple operations on same device.
 562   Increase hash table size to 1024 lv names and 64 pv uuids.
 563   Remove fs_unlock() from lv_resume path.
 564   Fix wipe size when setting up mda.
 565   Remove unneeded checks for open_count in lv_info().
 566   Synchronize with udev before checking open_count in lv_info().
 567   Allow CLVMD_CMD_SYNC_NAMES to be propagated around the cluster if requested.
 568   Add "dmsetup ls --tree" output to lvmdump.
 569   Fix udev synchronization with no-locking --sysinit (2.02.80).
 570   Improve man page style consistency for pvcreate, pvremove, pvresize, pvscan.
 571   Avoid rebuilding of uuid validation table.
 572   Improve lvcreate error text from insufficient "extents" to "free space".
 573   Always use O_DIRECT when opening block devices to check for partitioning.
 574
 575 Version 2.02.82 - 24th January 2011
 576 ===================================
 577   Bring lvscan man page up-to-date.
 578   Fix lvchange --test to exit cleanly.
 579   Add change_tag to toollib.
 580   Allow multiple pvchange command line options to be specified together.
 581   Do not fail pvmove polling if another process cleaned up first.
 582   Avoid clvmd incrementing dlm lockspace reference count more than once.
 583   Add -f (don't fork) option to clvmd and fix clvmd -d<num> description.
 584
 585 Version 2.02.81 - 17th January 2011
 586 ===================================
 587   Do not scan devices in dev_reset_error_count().
 588   Skip unnecessary LOCK_NULL unlock call during volume deactivation.
 589   Skip fs_unlock when calling exec_cmd within activation code (for modprobe).
 590   Extend exec_cmd params to specify when device sync (fs_unlock) is needed.
 591   Replace fs_unlock by sync_local_dev_names to notify local clvmd. (2.02.80)
 592   Introduce sync_local_dev_names and CLVMD_CMD_SYNC_NAMES to issue fs_unlock.
 593   Accept fusion fio in device type filter.
 594   Add ability to convert mirror log type from disk to mirrored.
 595
 596 Version 2.02.80 - 10th January 2011
 597 ===================================
 598   Use same dm cookie for consecutive dm ops in same VG to reduce udev waits.
 599   Speed up command processing by caching resolved config tree.
 600   Pass config_tree to renamed function import_vg_from_config_tree().
 601   Detect NULL handle in get_property().
 602   Fix superfluous /usr in ocf_scriptdir instalation path.
 603   Add --with-ocfdir configurable option.
 604   Add aclocal.m4 (for pkgconfig).
 605   Fix memory leak in persistent filter creation error path.
 606   Check for errors setting up dm_task struct in _setup_task().
 607   Fail polldaemon creation when lvmcache_init() fails.
 608   Return PERCENT_INVALID for errors in _copy_percent() and _snap_percent().
 609   Remove some unused variables.
 610   Improve general lvconvert man page description.
 611   Return 0 from cmirrord initscript 'start' if daemon is already running.
 612   Fix wrongly paired unlocking of VG_GLOBAL in pvchange. (2.02.66)
 613   Add backtraces for backup and backup_remove fail paths.
 614   Detect errors from dm_task_set calls in _get_device_info (dmeventd).
 615   Add backtraces for archive and backup_locally in check_current_backup().
 616   Fix memory leak in debug mode of restart_clvmd() error path.
 617   Log error message for pthread_join() failure in clvmd.
 618
 619 Version 2.02.79 - 20th December 2010
 620 ====================================
 621   Remove some unused variables.
 622   Add missing test for reallocation error in _find_parallel_space().
 623   Add checks for allocation errors in config node cloning.
 624   Fix error path if regex engine cannot be created in _build_matcher().
 625   Use char* arithmetic in target_version(), _process_all() & _targets().
 626   Fixing const cast gcc warnings in the code.
 627   Check read() and close() results in _get_cmdline().
 628   Add const for struct config_node usage.
 629   Fix NULL pointer check in error path in clvmd do_command(). (2.02.78)
 630   Fix device.c #include to ensure 64-bit fopen64 use. (2.02.51)
 631   Add copy_percent and snap_percent to liblvm.
 632   Enhance vg_validate to ensure integrity of LV and PV structs referenced.
 633   Enhance vg_validate to check composition of pvmove LVs.
 634   Create /var/run/lvm directory during clvmd initialisation if missing.
 635   Use new dm_prepare_selinux_context instead of dm_set_selinux_context.
 636   Avoid revalidating the label cache immediately after scanning.
 637   Support scanning for a single VG in independent mdas.
 638   Don't skip full scan when independent mdas are present even if memlock is set.
 639   Set cmd->independent_metadata_areas if metadata/dirs or disk_areas in use.
 640   Cope better with an undefined target_percent operation in _percent_run.
 641   Avoid writing to freed memory in vg_release and rename to free_vg.  (2.02.78)
 642
 643 Version 2.02.78 - 6th December 2010
 644 ===================================
 645   Abort if segment tag allocation fails in pool format _add_stripe_seg.
 646   Abort in _mirrored_transient_status if referenced log/image LV is not active.
 647   Add backtraces for dev_set() and dev_close_immediate() errors in set_lv().
 648   Log any unlink() error in clvmd remove_lockfile().
 649   Log any pipe write() or close() errors in clvmd child_init_signal().
 650   Detect if orphan vginfo was lost from cache before _lvmcache_update_vgname().
 651   Do a full rescan if some device is missing in lvm1 format read_pvs_in_vg.
 652   Add missing check that dm_pool_create succeeded in write_config_node().
 653   Use dm_snprintf in clvmd-command.c to ensure an overlong buffer is truncated.
 654   Don't write to buffer if its reallocation failed in clvmd do_command().
 655   Switch from float to fixed point percentage handling.
 656   Avoid misleading missing PV warnings in vgextend --restoremissing.
 657   Fix memory leak when VG allocation policy in metadata is invalid.
 658   Ignore unrecognised allocation policy found in metadata instead of aborting.
 659   Factor out tag printing into _out_tags and avoid leaking string buffer.
 660   Remove some unused variables & assignments.
 661   Add missing vg_release calls in _vg_read_by_vgid.
 662   Fix debug logging of derived flag LCK_CACHE in clvmd.
 663   Fix test for no system_dir in _init_backup().
 664   Disallow lvconvert ops that both allocate & free supplied PEs in a single cmd.
 665   Fix liblvm seg_size to give bytes not sectors.
 666   Add functions to look up LV/PV by name/uuid to liblvm.
 667   Free cmd_context if fallback to LVM1 fails in lvm2_main().
 668   Free device name buffer in dmsetup parse_loop_device_name() error paths.
 669   Close format lib if init_format_fn fails in _init_formats().
 670   Don't leave /proc/mounts open after dmeventd snapshot event processing.
 671   Fix out-of-scope arg_vgnames use in process_each_lv().
 672   Remove incorrect dm_task_destroy(NULL) from _node_clear_table() error path.
 673   Add missing closedir in _rm_blks after removing stray LVM1 VG files.
 674   Suppress 'No PV label' message when removing several PVs without mdas.
 675   Fix default /etc/lvm permissions to be 0755. (2.02.66)
 676
 677 Version 2.02.77 - 22nd November 2010
 678 ====================================
 679   Allocate a pool for dummy VG in _pvsegs_sub_single.
 680   Add PV and LV segment types and functions to liblvm.
 681   Add set_property functions to liblvm.
 682   Remove tag length restriction and allow / = ! : # & characters.
 683   Support repetition of --addtag and --deltag arguments.
 684   Add infrastructure for specific cmdline arguments to be repeated in groups.
 685   Split the_args cmdline arguments and values into arg_props and arg_values.
 686   Fix fsadm no longer to require '-f' to resize an unmounted filesystem.
 687   Fix fsadm to detect mounted filesystems on older systems. (2.0.75)
 688   Extend cling allocation policy to recognise PV tags (cling_by_tags).
 689   Add allocation/cling_tag_list to lvm.conf.
 690   Regenerate configure with 'autoreconf' for --enable-ocf. (2.02.76)
 691
 692 Version 2.02.76 - 8th November 2010
 693 ===================================
 694   Clarify error messages when activation fails due to activation filter use.
 695   Add pacemaker script VolumeGroup.ocf with configure --enable-ocf.
 696   Import make.tmpl into include/ Makefile.
 697   Fix handling of online filesystem resize (using new fsadm return code).
 698   Add DIAGNOSTICS section to fsadm man page.
 699   Modify fsadm to return different status code for check of mounted filesystem.
 700   Update VG metadata only once in vgchange when making multiple changes.
 701   Allow independent vgchange arguments to be used together.
 702   Automatically unmount invalidated snapshots in dmeventd.
 703   Suppress some superfluous messages from clang static analysis.
 704   Fix a deadlock caused by double close in clvmd.
 705   Fix NULL pointer dereference on too-large MDA error path in _vg_read_raw_area.
 706   Use static for internal _align_chunk() and _new_chunk() from pool-fast.c.
 707   Fix vgchange to process -a, --refresh, --monitor and --poll like lvchange.
 708   Add lvm2app functions to query any pv, vg, or lv property / report field.
 709
 710 Version 2.02.75 - 25th October 2010
 711 ===================================
 712   Annotate more variables and parameters as const.
 713   Fix missing variable initialization in cluster_send() function from cmirrord.
 714   Fix pointer for VG name in _pv_resize_single error code path.
 715   Fix warning for changed alignment requirements for dmeventd read/write func.
 716   Add global/metadata_read_only to use unrepaired metadata in read-only cmds.
 717   Don't take write lock in vgchange --refresh, --poll or --monitor.
 718   Skip dm devices in scan if they contain only error targets or are empty.
 719   Fix strict-aliasing compile warning in partition table scanning.
 720   Fix pthread mutex usage deadlock in clvmd.
 721   Automatically extend snapshots with dmeventd according to policy in lvm.conf.
 722   Add activation/snapshot_autoextend_threshold/percent to lvm.conf.
 723   Fix liblvm2cmd link order to support --as-needed.
 724   Remove dependency on libm by replacing floor() by an integer-based algorithm.
 725   Fix hang when repairing a mirrored-log that had both devs fail.
 726   Convey need for snapshot-merge target in lvconvert error message and man page.
 727   Add devices/disable_after_error_count config to limit access to failing devs.
 728   Give correct error message when creating a too-small snapshot.
 729   Implement vgextend --restoremissing to reinstate missing devs that return.
 730   Make lvconvert respect --yes and --force when converting an inactive log.
 731   Refactor and add 'get' functions for lv properties/fields.
 732   Update script for fsadm testing.
 733   Better support of noninteractive shell execution of fsadm.
 734   Fix usage of --yes flag for ReiserFS resize in fsadm.
 735   Fix detection of mounted filesystems for fsadm when udev is used.
 736   Fix assignment of default value to LVM variable in fsadm.
 737   Fix support for --yes flag for fsadm.
 738   Do not execute lvresize from fsadm --dry-run.
 739   Fix fsadm return error code from user's break action.
 740   Allow CC to be overridden at build time (for 'scan-build make').
 741   Rename 'flags' to 'status' in struct metadata_area.
 742   Avoid segfault by limiting partial mode for lvm1 metadata. (2.02.74)
 743   Use dm_zalloc and dm_pool_zalloc throughout.
 744   Add pv_get_property and create generic internal _get_property function.
 745   Add 'get' functions for pv and vg properties/fields.
 746   Make generic GET_*_PROPERTY_FN macros with secondary macro for vg, pv & lv.
 747   Add tags_format_and_copy() common function and call from _tags_disp.
 748   Add id_format_and_copy() common function and call from _uuid_disp.
 749   Refactor report.c '*_disp' functions to call supporting functions.
 750   Move parts of metadata*.[ch] into new {pv|vg|lv}.[ch] files.
 751   Fix vg_read memory leak with directory-based metadata.
 752   Fix memory leak of config_tree in reinitialization code path.
 753   Fix pool destruction order in dmeventd_lvm2_exit() to avoid leak debug mesg.
 754   Read whole /proc/self/maps file before working with maps entries.
 755   Speed up unquoting of quoted double quotes and backslashes.
 756   Speed up CRC32 calculations by using a larger lookup table.
 757
 758 Version 2.02.74 - 24th September 2010
 759 =====================================
 760   Allow : and @ to be escaped with \ in device names of PVs.
 761   Replace alloca with dm_malloc in _aligned_io to avoid stack corruption.
 762   Fix partial mode operations for lvm1 metadata format.
 763   Track recursive filter iteration to avoid refreshing while in use. (2.02.56)
 764   Revert to old glibc vsnprintf behaviour in emit_to_buffer() to catch overflow.
 765   Allocate buffer for metadata tags dynamically to remove 4k limit.
 766   Add random suffix to archive file names to prevent races when being created.
 767   Reinitialize archive and backup handling on toolcontext refresh.
 768   Make poll_mirror_progress report PROGRESS_CHECK_FAILED if LV is not a mirror.
 769   Like mirrors, don't scan origins if ignore_suspended_devices() is set.
 770   Fix return type qualifier to avoid compiler warning. (2.02.69)
 771   Automatically generate LSB Requires-Start for clvmd init script.
 772   Fix return code of pvmove --abort PV.
 773   Fix pvmove --abort to remove even for empty pvmove LV.
 774   Add configure --with-default-data-alignment.
 775   Update heuristic used for default and detected data alignment.
 776   Add "devices/default_data_alignment" to lvm.conf.
 777   Add implementation for simple numeric 'get' property functions.
 778   Define GET_NUM_PROPERTY_FN macro to simplify numeric property 'get' function
 779   Add properties.[ch] to lib/report using columns.h.
 780   Add macro definitions to report infrastructure for character array length.
 781   Remove explicit double quotes from columns.h 'id' entries.
 782   Add 'flags' field to columns.h and define FIELD_MODIFIABLE.
 783   Add vg_mda_size and vg_mda_free functions.
 784   Simplify MD/swap signature detection in pvcreate and allow aborting.
 785   Allow --yes to be used without --force mode.
 786   Fix file descriptor leak in swap signature detection error path.
 787   Detect and allow abort in pvcreate if LUKS signature is detected.
 788   Always mask lock flags correctly when checking for LCK_WRITE.
 789
 790 Version 2.02.73 - 18th August 2010
 791 ==================================
 792   Fix potential for corruption during cluster mirror device failure.
 793   Use 'SINGLENODE' instead of 'dead' in clvmd singlenode messages.
 794   Ignore snapshots when performing mirror recovery beneath an origin.
 795   Pass LCK_ORIGIN_ONLY flag around cluster.
 796   Add suspend_lv_origin and resume_lv_origin using LCK_ORIGIN_ONLY.
 797   Allow internal suspend and resume of origin without its snapshots.
 798   Fix dev_manager_transient to access -real device not snapshot-origin.
 799   Monitor origin -real device below snapshot instead of overlay device.
 800   Don't really change monitoring status when in test mode.
 801   Fix some exit statuses when starting/stopping monitoring fails.
 802   Enable snapshot monitoring by default when dmeventd is enabled.
 803   Move cloned libdevmapper-event client code from segments into lib/activate.
 804   Fix 'lvconvert --splitmirrors' in cluster operation.
 805   Fix clvmd init script exit code to return 4 when executed as non-root user.
 806   Change default alignment of pe_start to 1MB.
 807   Add --norestorefile option to pvcreate.
 808   Require --restorefile when using pvcreate --uuid.
 809   Recognise and give preference to md device partitions (blkext major).
 810   Never scan internal LVM devices.
 811   Don't ignore user-specified PVs in split-mirror operations. (2.02.71)
 812   Fix data corruption bug in cluster mirrors.
 813   Require logical volume(s) to be explicitly named for lvconvert --merge.
 814   Avoid changing aligned pe_start as a side-effect of very verbose logging.
 815   Use built-in rule for device aliases: block/ < dm- < disk/ < mapper/ < other.
 816   Fix const warning in dev_manager_info() and _dev_manager_lv_rmnodes().
 817   Fix const warning in archive_file structure from archive.c.
 818   Clean generated files .exported_symbols_generated, example.conf for distclean.
 819   Handle failure of all mirrored log devices and all but one mirror leg.
 820   Disallow 'mirrored' log type for cluster mirrors.
 821   Do not use VPATH in include/Makefile.
 822   Fix exported_symbols generation to use standard compiler arguments.
 823   Use #include <> not "" in lvm2app.h which gets installed on the system.
 824   Make lib and liblvm.device-mapper wait for include file generation.
 825   Fix configure to supply DEFAULT_RUN_DIR to Makefiles.
 826   Fix allocation of wrong number of mirror logs with 'remove' fault policy.
 827
 828 Version 2.02.72 - 28th July 2010  [CVE-2010-2526]
 829 =================================================
 830   Change clvmd to communicate with lvm2 via a socket in /var/run/lvm.
 831   Return controlled error if clvmd is run by non-root user.
 832   Add configure --default-run-dir for /var/run/lvm.
 833   Never use clvmd singlenode unless explicitly requested with -Isinglenode.
 834
 835 Version 2.02.71 - 28th July 2010
 836 ================================
 837   Document LVM fault handling in doc/lvm_fault_handling.txt.
 838   Make vgck warn about missing PVs.
 839   Clarify help text for vg_mda_count.
 840   Check if cluster log daemon is running before allowing cmirror create.
 841   Add unit-tests dir.
 842   Add configure --enable-testing and reports and report-generators dirs.
 843   Correct LV list order used by lvconvert when splitting a mirror.
 844   Check if LV with specified name already exists when splitting a mirror.
 845   Fix suspend/resume logic for LVs resulting from splitting a mirror.
 846   Update pvcreate, {pv|vg}change, and lvm.conf man pages about metadataignore.
 847   Switch cmirrord and clvmd to use dm_create_lockfile.
 848   Allow clvmd pidfile to be configurable.
 849   Update comments about memory handling in lvm2app.h.
 850   Add more verbose messages while checking volume_list and hosttags settings.
 851   Add log_error when strdup fails in {vg|lv}_change_tag().
 852   Remove unnecessary includes in liblvm files.
 853   Use __attribute__ consistently throughout.
 854   Fix redundant declarations and always compile with -Wredundant-decls.
 855   Fix possible hang when all mirror images of a mirrored log fail.
 856   Pass metadataignore to pv_create, pv_setup, _mda_setup, and add_mda.
 857   Init mda->list in mda_copy.
 858   Do not log backtrace in valid _lv_resume() code path.
 859   Cleanup help strings in configure.in.
 860   Prompt if metadataignore with vgextend or pvchange would adjust vg_mda_copies.
 861   Adjust vg_mda_copies if metadataignore given with vgextend or pvchange.
 862   Adjust auto-metadata repair and caching logic to try to cope with empty mdas.
 863
 864 Version 2.02.70 - 6th July 2010
 865 ===============================
 866   Remove log directly if all mirror images of a mirrored log fail.
 867   Randomly select which mdas to use or ignore.
 868   Add some missing standard configure.in checks.
 869   Add printf format attributes to yes_no_prompt and fix a caller.
 870   Always pass unsuspended dm devices through persistent filter to other filters.
 871   Move test for suspended dm devices ahead of other filters.
 872   Fix another segfault in clvmd -R if no response from daemon. (2.02.68)
 873   Remove superfluous suspended device counter from clvmd.
 874   Fix lvm shell crash when input is entirely whitespace.
 875   Update partial mode warning message.
 876   Preserve memlock balance in clvmd when activation triggers a resume.
 877   Restore the removemissing behaviour of lvconvert --repair --use-policies.
 878
 879 Version 2.02.69 - 30th June 2010
 880 ================================
 881   Fix vgremove to allow removal of VG with missing PVs. (2.02.52)
 882   Add metadata/vgmetadatacopies to lvm.conf.
 883   Add --metadataignore to pvcreate and vgextend.
 884   Add vg_mda_copies, pv_mda_used_count and vg_mda_used_count to reports.
 885   Describe --vgmetadatacopies in lvm.conf and other man pages.
 886   Add --[vg]metadatacopies to select number of mdas to use in a VG.
 887   Make the metadata ignore bit control read/write metadata areas in a PV.
 888   Add pvchange --metadataignore to set or clear a metadata ignore bit.
 889   Refactor metadata code to prepare for --metadataignore / --vgmetadatacopies.
 890   Ensure region_size of mirrored log does not exceed its full size.
 891   Generate liblvm2app exported symbols from header file.
 892   Preload libc locale messages to prevent reading it in memory locked state.
 893   Fix handling of simultaneous mirror image and mirrored log image failure.
 894
 895 Version 2.02.68 - 23rd June 2010
 896 ================================
 897   Fix clvmd initscript status to print only active clustered LVs.
 898   Add lv_path to reports to offer full /dev pathname.
 899   Fix typo in warning message about missing device with allocated data areas.
 900   Add device name and offset to raw_read_mda_header error messages.
 901   Honour log argument when down-converting stacked mirror.
 902   Sleep to workaround clvmd -S race: socket closed early and server drops cmd.
 903   Use early udev synchronisation and update of dev nodes for clustered mirrors.
 904   Remove incorrect inclusion of kdev_t.h from cmirrord/functions.h.
 905   Add man pages for lvmconf and non-existent lvmsadc and lvmsar tools.
 906   Exit successfully when using -o help (but not -o +help) with LVM reports.
 907   Do not use internal DLM lock definitions in generic LVM2 clvmd code.
 908   Add --force, --nofsck and --resizefs to lvresize/extend/reduce man pages.
 909   Fix lvm2cmd example in documentation.
 910   Allow use of lvm2app and lvm2cmd headers in C++ code.
 911   Remove unused #includes from clvmd files and introduce clvmd-common.h.
 912   Move common inclusions to clvmd-common.h.
 913   Use #include "" for libdevmapper.h and configure.h throughout tree.
 914   Fix LVM_PATH expansion when exec_prefix=NONE. (2.02.67)
 915   Fix segfault in clvmd -R if no response from daemon received.
 916
 917 Version 2.02.67 - 4th June 2010
 918 ===============================
 919   Handle failed restart of clvmd using -S switch properly.
 920   Fix clvmd initscript restart command to start clvmd if not yet running.
 921   Use built-in absolute paths in clvmd (clvmd restart and PV and LV queries).
 922   Require partial option in lvchange --refresh for partial LVs.
 923   Do not fail lvm_init() if init_logging() or _init_rand() generates an errno.
 924   Don't merge unchanged persistent cache file before dumping if tool scanned.
 925   Fix incorrect memory pool deallocation while using vg_read for files.
 926   Add --type parameter description to the lvcreate man page.
 927   Replace strncmp kernel version number checks with proper ones.
 928   Avoid selecting names under /dev/block if there is an alternative.
 929   Update clustered log kernel module name to log-userspace for 2.6.31 onwards.
 930   Add replicators' LVs to dtree for activation.
 931   Supress activation message if there is a missing replicator VG.
 932   Fix scripts/relpath.awk to work in mawk
 933   Extend lock_vol to check for missing replicator VGs first.
 934   Update _process_one_vg and process_each_lv_in_vg to populate cmd_vg.
 935   Add cmd_vg structure and associated functions for replicator.
 936   Extend _lv_each_dependency() to handle replicator dependencies.
 937   Add check_replicator_segment() to catch internal replicator errors.
 938   Initial support for replicator metadata.
 939   Extend process_each_lv_in_vg() to provide list of failed lvnames.
 940   Consistently return ECMD_FAILED if process_each_*lv() is interrupted.
 941
 942 Version 2.02.66 - 20th May 2010
 943 ===============================
 944   If unable to obtain snapshot percentage leave value blank on reports.
 945   Add install_system_dirs and install_initscripts makefile targets.
 946   Add configure options for system and locking directories.
 947   Generate example.conf so default lvm.conf contents can be configured.
 948   Install lvmconf script by default.
 949   Remove unnecessary versioned dmeventd plugin symlinks.
 950   Add tests for lvm_vgname_from_{pvid|device}.
 951   Add lvm2app interfaces to lookup a vgname from a pvid and pvname.
 952   Update pvchange to always obtain a vg handle for each pv to process.
 953   Add find_vgname_from_{pvname|pvid} functions.
 954   Add pvid_from_devname and lvmcache_vgname_from_pvid lvmcache functions.
 955   Validate orphan and VG_GLOBAL lock order too.
 956   Accept orphan VG names as parameters to lock_vol() and related functions.
 957   Use is_orphan_vg in place of hard-coded prefix tests and add is_global_vg.
 958
 959 Version 2.02.65 - 17th May 2010
 960 ===============================
 961   Fix clvmd init script never to deactivate non-clustered volume groups.
 962   Disallow vgchange --clustered if there are active mirrors or snapshots.
 963   Introduce lv_is_mirrored.
 964   Use /bin/bash for scripts with bashisms.
 965   Skip internal lvm devices in scan if ignore_suspended_devices is set.
 966   Do not merge old device cache after we run full scan. (2.02.56)
 967   Add pkgconfigdir Makefile variable for make install override.
 968   Configure pkgconfig udev and selinux dependencies.
 969   Switch Libs.private to Requires.private in devmapper.pc and lvm2app.pc.
 970   Use pkgconfig Requires.private for devmapper-event.pc.
 971   Add libdevmapper to linked libdevmapper-event.so.
 972   Link liblvm2cmd.so with libdevmapper-event and libdevmapper.
 973   Fix truncated total size displayed by pvscan.
 974   Add new --sysinit compound option to vgchange and lvchange.
 975   Drop duplicate errors for read failures and missing devices to verbose level.
 976   Use $(libdir)/lvm2 with make install_lvm2_plugin.
 977   Use $(libdir)/device-mapper with make install_dm_plugin.
 978   Add dm_list_splice() function to join two lists together.
 979
 980 Version 2.02.64 - 30th April 2010
 981 =================================
 982   Avoid pointless initialisation when the 'version' command is run directly.
 983   Fix memory leak for invalid regex pattern input.
 984   Display invalid regex pattern for filter configuration in case of error.
 985   Remove no-longer-used arg_ptr_value.
 986   Fix -M and --type to use strings, not pointers that change on config refresh.
 987   Fix lvconvert error message when existing mirrored LV is not found.
 988   Set appropriate udev flags for reserved LVs.
 989   Disallow the direct removal of a merging snapshot.
 990   Don't preload the origin when removing a snapshot whose merge is pending.
 991   Disallow the addition of mirror images while a conversion is happening.
 992   Disallow primary mirror image removal when mirror is not in-sync.
 993   Remove obsolete --name parameter from vgcfgrestore.
 994   Add -S command to clvmd to restart the daemon preserving exclusive locks.
 995   Increment lvm2app version from 1 to 2 (memory allocation changes).
 996   Change lvm2app memory alloc/free for pv/vg/lv properties.
 997   Change daemon lock filename from lvm2_monitor to lvm2-monitor for consistency.
 998   Install symbolic .so links with relative paths between usrlibdir and libdir.
 999   Add awk script relpath.awk to calculate paths for relative symlinks.
1000   Use @AWK@ in makefiles.
1001   Fix double DESTDIR usage for infodir and mandir.
1002
1003 Version 2.02.63 - 14th April 2010
1004 =================================
1005   Rename lvm_dump.sh to lvmdump.sh.
1006   Allow incomplete mirror restore in lvconvert --repair upon insufficient space.
1007   Do not reset position in metadata ring buffer on vgrename and vgcfgrestore.
1008   Allow VGs with active LVs to be renamed.
1009   Use UUIDs instead of names while processing event handlers.
1010   Only pass visible LVs to tools in cmdline VG name/tag expansions without -a.
1011   Use typedefs for toollib process_each functions.
1012   Use C locales and use_mlockall for clvmd.
1013   Refactor code related to vg->pvs list and add pv->vg link.
1014   Mask LCK_HOLD flag in cluster VG locks for backwards compatibility.
1015   Add activation/polling_interval to lvm.conf as --interval default.
1016   Don't ignore error if resuming any LV fails in resume_lvs.
1017   Skip closing persistent filter cache file if open failed.
1018   Install .a and .so links into $(usrlibdir).
1019   Add --enable-write_install options to install user-writable files.
1020   Use INSTALL_PROGRAM/DATA/WDATA target.
1021   Switch from using VPATH  to vpath in Makefiles.
1022   Permit mimage LVs to be striped in lvcreate, lvresize and lvconvert.
1023   Fix pvmove allocation to take existing parallel stripes into account.
1024   Add pvmove_source_seg to struct lv_segment.
1025   Fix incorrect removal of symlinks after LV deactivation fails.
1026   Fix is_partitioned_dev not to attempt to reopen device.
1027   Fix another thread race in clvmd.
1028   Refactor management of vg->pvs list.
1029   Fix lcov rules and generate better coverage report.
1030   Improve vg_validate to detect some loops in lists.
1031   Change most remaining log_error WARNING messages to log_warn.
1032   Always use blocking lock for VGs and orphan locks.
1033   Allocate all memory for segments from private VG mempool.
1034   Return newly allocated PV segment after segment split.
1035   Optimise searching PV segments for seeking the most recently-added.
1036   Remove vg_validate call when parsing cached metadata.
1037   Use hash table of LVs to speed up parsing of text metadata with many LVs.
1038   Fix two vg_validate messages, adding whitespace and parentheses.
1039   When dmeventd is not forking because of -d flag, don't kill parent process.
1040   Fix 'make install' when $(builddir) is different from $(srcdir).
1041   Fix dso resource leak in error path of dmeventd.
1042   Use C locales and use_mlockall for dmeventd.
1043   Fix --alloc contiguous policy only to allocate one set of parallel areas.
1044   Do not allow {vg|lv}change --ignoremonitoring if on clustered VG.
1045   Improved dependency tracking for dmeventd and liblvm2cmd sources.
1046   Improved Makefile rules for distclean and cflow targets.
1047   Add ability to create mirrored logs for mirror LVs.
1048   Fix clvmd cluster propagation of dmeventd monitoring mode.
1049   Allow ALLOC_ANYWHERE to split contiguous areas.
1050   Use INTERNAL_ERROR for internal errors throughout tree.
1051   Add some assertions to allocation code.
1052   Introduce pv_area_used into allocation algorithm and add debug messages.
1053   Add activation/monitoring to lvm.conf.
1054   Add --monitor and --ignoremonitoring to lvcreate.
1055   Allow dynamic extension of array of areas selected as allocation candidates.
1056   Export and use only valid cookie value in test suite.
1057   Remove const modifier for struct volume_group* from process_each_lv_in_vg().
1058   Don't allow resizing of internal logical volumes.
1059   Fix libdevmapper-event pkgconfig version string to match libdevmapper.
1060   Avoid scanning all pvs in the system if operating on a device with mdas.
1061   Add configure --with-clvmd=singlenode to use clvmd w/o cluster infrastructure.
1062   Get stacktrace if testsuite test drops core and lvm was built with debugging.
1063   Disable long living process flag in lvm2app.
1064   Fix pvcreate device md filter check.
1065   Suppress repeated errors about the same missing PV uuids.
1066   Bypass full device scans when using internally-cached VG metadata.
1067   Only do one full device scan during each read of text format metadata.
1068   Remove unnecessary full_scan parameter from get_vgids and get_vgnames calls.
1069   Look up missing PVs by uuid not dev_name in _pvs_single to avoid invalid stat.
1070   Make find_pv_in_vg_by_uuid() return same type as related functions.
1071   Introduce is_missing_pv().
1072   Fix clvmd Makefile to not overwrite LIBS from template definition.
1073
1074 Version 2.02.62 - 9th March 2010
1075 ================================
1076   Add use_mlockall and mlock_filter to activation section of lvm.conf.
1077   Add default alternative to mlockall using mlock to reduce pinned memory size.
1078   Remove -rdynamic from static builds.
1079   Update checks for pthread, readline & selinux libs and link only when needed.
1080   Introduce makefile vars UDEV_LIBS, DL_LIBS, SELINUX_LIBS, STATIC_LIBS.
1081   Introduce makefile vars LVMINTERNAL_LIBS, READLINE_LIBS, PTHREAD_LIBS.
1082   Toggle configure help to print --disable-fsadm.
1083   Use $() instead of ${} consistently for all Makefile variables.
1084   Replace CFLOW_CMD only in make.tmpl and use it as variable elsewhere.
1085   Use $(top_builddir) for inclusion of make.tmpl in Makefiles.
1086   Fix autoconf warning about ignored datarootdir.
1087   Increase AC_PREREQ version to 2.61 (for AC_PROC_SED, AC_PROG_MKDIR_P).
1088   Handle misaligned devices that report alignment_offset of -1.
1089   Extend core allocation code in preparation for mirrored log areas.
1090   Rewrite clvmd init script.
1091   Remove lvs_in_vg_activated_by_uuid_only call.
1092   No longer fall back to looking up active devices by name if uuid not found.
1093   Don't touch /dev in vgmknodes if activation is disabled.
1094   Update lvm2app.h Doxygen comments and add lvm2app Doxygen config file.
1095   Update nightly tests and lvm2app unit tests to cover tags.
1096   Add lvm2app functions lvm_{vg|lv}_{get|add|remove}_tag() functions.
1097   Add dm_pool_strdup to allocate and copy memory in tag library function.
1098   Refactor vgcreate, vgchange, and lvchange for tag library function.
1099   Refactor snapshot-merge deptree and device removal to support info-by-uuid.
1100
1101 Version 2.02.61 - 15th February 2010
1102 ====================================
1103   Fix some consts and floating point gcc warnings.
1104   Fix dm_report_field_uint64 function to accept 64-bit ints.
1105   Change readhead display to use 32-bit -1 const instead of 64-bit.
1106   Add LVM_SUPPRESS_LOCKING_FAILURE_MESSAGES environment variable.
1107   Remove hard-coding that skipped _mimage devices from 11-dm-lvm.rules.
1108   Use udev transactions in test suite.
1109   Set udev state automatically instead of using LVM_UDEV_DISABLE_CHECKING.
1110   Add lvm_pv_get_size, lvm_pv_get_free and lvm_pv_get_dev_size to lvm2app.
1111   Change lvm2app to return all sizes in bytes as documented (not sectors).
1112   Add 'fail_if_percent_unsupported' arg to _percent and _percent_run.
1113   Remove false "failed to find tree node" error when activating merging origin.
1114   Exit with success when lvconvert --repair --use-policies performs no action.
1115   Accept a list of LVs with 'lvconvert --merge @tag' using process_each_lv.
1116   Avoid unnecessary second resync when adding mimage to core-logged mirror.
1117   Exclude internal VG names and uuids from lists returned through lvm2app.
1118   Add %ORIGIN support to lv{create,extend,reduce,resize} --extents.
1119   Add _mda_copy to clone a struct metadata_area.
1120   Remove pointless versioned symlinks to dmeventd plugin libraries.
1121   Fix dmeventd snapshot plugin build dependency.
1122   Make clvmd -V return status zero.
1123   Remove unnecessary 'dmsetup resume' following 'dmsetup create' in tests.
1124   Fix cmirrord segfault in clog_cpg list processing when converting mirror log.
1125   Deactivate temporary pvmove mirror cluster-wide when activating it fails.
1126   Always query device by uuid and not name in clvmd.
1127   Add missing metadata vg_reverts in pvmove error paths.
1128   Unlock shared lock in clvmd if activation calls fail.
1129   Return success from dev_manager_info with non-existent uuid if ioctl succeeds.
1130
1131 Version 2.02.60 - 23rd January 2010
1132 ===================================
1133   Extend cmirrord man page.
1134   Sleep before first progress check if pvmove/lvconvert interval has prefix '+'.
1135   Default to checking progress before waiting in _wait_for_single_lv.
1136   Fix cmirror initscript (including syntax error).
1137   Eliminate avoidable ioctls for checking open_count in _add_new_lv_to_dtree.
1138   Disable memory debugging if dmeventd is configured. (Not thread-safe.)
1139   Fix first log message prefix in syslog for dmeventd plugins.
1140   Fix exported symbols names for dmeventd lvm2 wrapper plugin.
1141   Make failed locking initialisation messages more descriptive.
1142
1143 Version 2.02.59 - 21st January 2010
1144 ===================================
1145   Add libdevmapper-event-lvm2.so to serialise dmeventd plugin liblvm2cmd use.
1146   Cleanup memory initialization and freeing in pv_read() and pv_create().
1147   Clear pointer and counters after their release in _fin_commands().
1148   Stop dmeventd trying to access already-removed snapshots.
1149   Remove (fallback) /dev mknod from cmirrord.
1150   Add t-topology-support.sh and t-snapshot-merge.sh tests.
1151   Fix clvmd to never scan suspended devices.
1152   Fix dmeventd build outside source tree.
1153   Assorted cmirror code changes to remove various compiler warnings.
1154   Fix detection of completed snapshot merge.
1155   Add Red Hat cmirror initscript (unfinished).
1156   Add cmirrord man page (incomplete).
1157   Make cluster log communication structures architecture independant.
1158   Fix cluster log in-memory bitmap handling.
1159   Improve snapshot merge metadata import validation.
1160   Improve target type compatibility checking in _percent_run().
1161   Add 'target_status_compatible' method to 'struct segtype_handler'.
1162   Change underscore to hyphen in table line for clustered log type.
1163
1164 Version 2.02.58 - 14th January 2010
1165 ===================================
1166   Cleanup some minor gcc warnings.
1167   Add --merge to lvconvert to merge a snapshot into its origin.
1168   Fix clvmd automatic target module loading crash (no reset_locking fn).
1169   Fix allocation code not to stop at the first area of a PV that fits.
1170
1171 Version 2.02.57 - 12th January 2010
1172 ===================================
1173   Ensure exactly one process returns from poll_daemon(), never two.
1174   Reset _vgs_locked in lvmcache_init() in child after forking.
1175   Define {DM, LVM}_UDEV_DISABLE_CHECKING=1 environment variables during tests.
1176   Enable udev_sync and udev_rules in lvm.conf by default while running tests.
1177   If LVM_UDEV_DISABLE_CHECKING in set in environment, disable udev warnings.
1178   Add --splitmirrors to lvconvert to split off part of a mirror.
1179   Change background polldaemon's process name to "(lvm2)".
1180   Allow vgremove to remove a VG with PVs missing after a prompt.
1181   Return success in lvconvert --repair --use-policies on failed allocation.
1182   Keep log type consistent when changing mirror image count.
1183   Always set environment variables for an LVM2 device in 11-dm-lvm.rules.
1184   Add activation/udev_rules config option in lvm.conf.
1185   Add consts to text metadata flag structs.
1186   Add macros outfc, outsize, outhint and function out_text_with_comment.
1187   Reimplement report FIELD macro using offsetof instead of static structs.
1188   Fix fsadm man page typo (fsdam).
1189   Rename mirror_device_fault_policy to mirror_image_fault policy.
1190   Remove empty PV devices if lvconvert --repair is using defined policies.
1191   Use fixed buffer to prevent stack overflow in persistent filter dump.
1192   Use extended status of new kernel snapshot target 1.8.0 to detect when empty.
1193   Insert stack macros in suspend_lv, resume_lv & (de)activate_lv callers.
1194   Add --poll flag to vgchange and lvchange to control background daemon launch.
1195   Propagate metadata commit and revert notifications to other cluster nodes.
1196   Use proper mask for VG lock mode in clvmd.
1197   Allow precommitted metadata to be dropped from lvmcache.
1198   Move processing of VG locks to separate function in clvmd.
1199   Properly decode all flags in clvmd messages including VG locks.
1200   Properly handle precommitted cache flag when only committed metadata present.
1201   Resume renamed volumes in reverse order to preserve memlock pairing.
1202   Drop cached metadata after device was auto-repaired and removed from VG.
1203   Clear MISSING_PV flag if PV reappeared and is empty.
1204   Fix removal of multiple devices from a mirror.
1205   Also clean up PVs flagged as missing in vgreduce --removemissing --force.
1206   Introduce INTERNAL_ERROR macro for error messages and use throughout.
1207   Remove superfluous returns from void functions.
1208   Destroy allocated mempool in _vg_read_orphans() error path.
1209   Fix some pvresize and toollib error paths with missing VG releases/unlocks.
1210   Explicitly call suspend for temporary mirror layer.
1211   Allow use of precommitted metadata when a PV is missing.
1212   Add memlock information to do_lock_lv debug output.
1213   Always bypass calls to remote cluster nodes for non-clustered VGs.
1214   Permit implicit cluster lock conversion in pre/post callbacks on local node.
1215   Permit implicit cluster lock conversion to the lock mode already held.
1216   Fix lock flag masking in clvmd so intended code paths get invoked.
1217   Replace magic masks in cluster locking code by defined masks.
1218   Remove newly-created mirror log from metadata if initial deactivation fails.
1219   Correct activated or deactivated text in vgchange summary message.
1220   Improve pvmove error message when all source LVs are skipped.
1221   Fix memlock imbalance in lv_suspend if already suspended.
1222   Fix pvmove test mode not to poll (and fail).
1223   Fix vgcreate error message if VG already exists.
1224   Fix tools to use log_error when aborted due to user response to prompt.
1225   Fix ignored readahead setting in lvcreate --readahead.
1226   Fix clvmd memory leak in lv_info_by_lvid by calling release_vg.
1227   If aborting due to internal error, always send that message to stderr.
1228   Add global/abort_on_internal_errors to lvm.conf to assist testing.
1229   Fix test Makefiles when builddir and srcdir differ.
1230   Impose limit of 8 mirror images to match the in-kernel kcopyd restriction.
1231   Use locking_type 3 (compiled in) for lvmconf --enable-cluster.
1232   Remove list.c and list.h with no-longer-used dm_list macros and functions.
1233   Log failure type and recognise type 'F' (flush) in dmeventd mirror plugin.
1234   Extend internal PV/VG/LV/segment status variables from 32-bit to 64-bit.
1235
1236 Version 2.02.56 - 24th November 2009
1237 ====================================
1238   Add missing vg_release to pvs and pvdisplay to fix memory leak.
1239   Do not try to unlock VG which is not locked in _process_one_vg.
1240   Move is_long_lived persistent_filter_dump to happen after every full scan.
1241   Refresh device filters before full device rescan in lvmcache.
1242   Return error status if vgchange fails to activate some volume.
1243   Fix suspend/resume lock type test causing unbalanced memory locking.
1244   Revert vg_read_internal change as clvmd was not ready for vg_read. (2.02.55)
1245
1246 Version 2.02.55 - 19th November 2009
1247 ====================================
1248   Fix deadlock when changing mirrors due to unpaired memlock refcount changes.
1249   Use separate memlock counter for dmeventd handlers to permit device scanning.
1250   Directly restrict vgchange to activating visible LVs.
1251   Fix pvmove region_size overflow for very large PVs.
1252   Fix lvcreate and lvresize %PVS argument always to use sensible total size.
1253   Tidy some uses of arg_count and introduce arg_is_set.
1254   Export outnl and indent functions for modules.
1255   Flush stdout after yes/no prompt.
1256   Update vgsplit and vgcreate to use vg_set_clustered.
1257   Add vg_mda_count and vg_set_clustered library functions.
1258   Add more vgcreate and vgsplit nightly tests.
1259   Insert some missing stack macros into activation code.
1260   Recognise DRBD devices and handle them like md devices.
1261
1262 Version 2.02.54 - 26th October 2009
1263 ===================================
1264   Update lvcreate/lvconvert man pages to explain PhysicalVolume parameter.
1265   Document --all option in man pages, cleanup {pv|vg|lv}{s|display} man pages.
1266   Permit snapshots of mirrors.
1267   Cleanup mimagetmp LV if allocation fails for new lvconvert mimage.
1268   Fix clvmd segfault when refresh_toolcontext fails.
1269   Remember to clear 'global lock held during cache refresh' state after use.
1270   Use udev flags support in LVM and apply various fixes to udev rules.
1271   Delay announcing mirror monitoring to syslog until initialisation succeeded.
1272   Handle metadata with unknown segment types more gracefully.
1273   Set default owner and group to null.
1274   Add dmeventd.static to the build.
1275   Disable realtime support code by default.
1276   Make clvmd return 0 on success rather than 1.
1277   Add --pvmetadatacopies for pvcreate, vgcreate, vgextend, vgconvert.
1278   Add implict pvcreate support to vgcreate and vgextend.
1279   Correct example.conf to indicate that lvm2 not lvm1 is the default format.
1280   Remove an unused stray LVM1_SUPPORT ifdef.
1281   Only include selinux libs in libdevmapper.pc when selinux build enabled.
1282   Allow for a build directory separate from the source.
1283   Update distclean target for rename clogd to cmirrord. (2.02.52)
1284   Only do lock conversions in clvmd if we are explicitly asked for one.
1285   Introduce percent_range_t and centralise snapshot full/mirror in-sync checks.
1286   Factor out poll_mirror_progress and introduce progress_t.
1287   Distinguish between powers of 1000 and powers of 1024 in unit suffixes.
1288   Restart lvconverts in vgchange by sharing lv_spawn_background_polling.
1289   Generalise polldaemon code by changing mirror-specific variable names.
1290   Don't attempt to deactivate an LV if any of its snapshots are in use.
1291   Return error if lv_deactivate fails to remove device from kernel.
1292   Provide alternative implementation of obsolete siginterrupt().
1293   Consolidate LV allocation into alloc_lv().
1294   Treat input units of both 's' and 'S' as 512-byte sectors.  (2.02.49)
1295   Use standard output units for 'PE Size' and 'Stripe size' in pv/lvdisplay.
1296   Add configure --enable-units-compat to set si_unit_consistency off by default.
1297   Add global/si_unit_consistency to enable cleaned-up use of units in output.
1298
1299 Version 2.02.53 - 25th September 2009
1300 =====================================
1301   Create any directories in /dev with DM_DEV_DIR_UMASK (022).
1302   Enable dmeventd monitoring section of config file by default.
1303   Update lvm2 monitoring script to lvm2_monitoring_init_red_hat.in.
1304   Fix lvm2app test to run under test/api subdirectory only when configured.
1305   Add vg_is_resizeable() and cleanup reference to VG_RESIZEABLE.
1306
1307 Version 2.02.52 - 15th September 2009
1308 =====================================
1309   Update _process_one_vg to cleanup properly after vg_read_error.
1310   Add lots of missing stack debug messages to tools.
1311   Make readonly locking available as locking type 4.
1312   Fix readonly locking to permit writeable global locks (for vgscan). (2.02.49)
1313   Add DM_UDEV_RULES_VSN environment variable to udev rules.
1314   Update vgsplit, vgmerge, and vgrename to obey new vgname ordering rules.
1315   Make lvm2app pv_t, lv_t, vg_t handle definitions consistent with lvm_t.
1316   Enforce an alphabetical lock ordering on vgname locking.
1317   Prioritise write locks over read locks by default for file locking.
1318   Add local lock files with suffix ':aux' to serialise locking requests.
1319   Fix global locking in PV reporting commands (2.02.49).
1320   Fix pvcreate string termination in duplicate uuid warning message.
1321   Don't loop reading sysfs with pvcreate on a non-blkext partition (2.02.51).
1322   Fix vgcfgrestore error paths when locking fails (2.02.49).
1323   Update Makefile distclean target.
1324   Add libudev configuration check.
1325   Make clvmd check corosync to see what cluster interface it should use.
1326   Add clvmd autodetection check and cleanup related configure messages.
1327   Rewrite clvmd configuration code to cope with all combinations of libs.
1328   Added configure --enable-cmirrord to build the cluster mirror log daemon.
1329   Rename clogd to cmirrord.
1330   Make lvchange --refresh only take a read lock on volume group.
1331   Fix race where non-blocking file locks could be granted in error.
1332   Fix vgextend error path - if ORPHAN lock fails, unlock / release vg (2.02.49).
1333   Fix compile warning in clvmd.
1334   Clarify use of PE ranges in lv{convert|create|extend|resize} man pages.
1335   Remove useless _pv_write wrapper.
1336   Add lvm2app.sh to tests conditional upon configure --enable-applib.
1337   Add lvm_vg_is_clustered, lvm_vg_is_exported, and lvm_vg_is_partial.
1338   Update lvm_vg_remove to require lvm_vg_write to commit remove to disk.
1339   Update test/api/test.c to call lvm_vg_create and lvm_vg_remove.
1340
1341 Version 2.02.51 - 6th August 2009
1342 =================================
1343   Fix locking in clvmd (2.02.50).
1344   Add --noudevsync option for relevant LVM tools.
1345   Add activation/udev_sync to lvm.conf.
1346   Only change LV symlinks on ACTIVATE not PRELOAD.
1347   Make lvconvert honour log mirror options combined with downconversion.
1348   Allow LV suspend while --ignorelockingfailure is in force.
1349   Update synopsis in lvconvert manpage to mention --repair.
1350   Set cookies in activation code and wait for udev to complete processing.
1351   Added configure --enable-udev_rules --enable-udev_sync.
1352   Added configure --with-udev-prefix --with-udevdir.
1353   Added udev dir to hold udev rules.
1354   Add devices/data_alignment_detection to lvm.conf.
1355   Add devices/data_alignment_offset_detection to lvm.conf.
1356   Add --dataalignmentoffset to pvcreate to shift start of aligned data area.
1357   Fix _mda_setup() to not check first mda's size before pe_align rounding.
1358   Document -I option of clvmd in the man page.
1359   Fix configure script to handle multiple clvmd selections.
1360   Fix lvm2app.pc installation filename.
1361   Remove pv_t, vg_t & lv_t handles from lib.  Only liblvm uses them.
1362   Rename lvm.h to lvm2app.h for now.
1363
1364 Version 2.02.50 - 28th July 2009
1365 ================================
1366   Change test/api/test.c prompt so it's not confused with the main lvm prompt.
1367   Update liblvm unit tests in test/api to cover latest liblvm changes.
1368   Add unimplemented lvm_lv_resize and lvm_pv_resize skeletons to liblvm.
1369   Add lvm_library_get_version to liblvm.
1370   Add lvm_config_override to liblvm to allow caller to override LVM config.
1371   Add lvm_lv_is_active and lvm_lv_is_suspended to liblvm.
1372   Add lvm_lv_activate and lvm_lv_deactivate to liblvm.
1373   Add lvm_scan, lvm_vg_reduce and lvm_vg_remove_lv to liblvm.
1374   Add functions to get numeric properties to liblvm.
1375   Add lvm_{pv|vg|lv}_get_{name|uuid} to liblvm.
1376   Add lvm_vg_list_pvs and lvm_vg_list_lvs to liblvm.
1377   Add lvm_vg_open and lvm_vg_create_lv_linear to liblvm.
1378   Add lvm_list_vg_names/uuids to liblvm.
1379   Add lvm_errno and lvm_errmsg to liblvm to obtain failure information.
1380   Rename lvm_create/destroy to lvm_init/quit.
1381   Rename lvm_reload_config to lvm_config_reload.
1382   Refactor _override_settings to use new override_config_tree_from_string.
1383   Add vg_reduce to metadata.c and metadata-exported.h.
1384   Update lvm.h to clarify API behavior and return codes.
1385   Update lvm_vg_extend to do an implicit pvcreate on the device.
1386   Update display.c to use vg_free(vg) instead of duplicating the calculation.
1387   Refactor vg_size, vg_free, and pv_mda_count field calculations for liblvm.
1388   Refactor pvcreate and lvcreate for liblvm.
1389   Add global/wait_for_locks to lvm.conf so blocking for locks can be disabled.
1390   All LV locks are non-blocking so remove LCK_NONBLOCK from separate macros.
1391   Fix race condition with vgcreate and vgextend on same device (2.02.49).
1392   Remove redundant validate_name call from vgreduce.
1393   Remove unused handles lvseg, pvseg inside liblvm/lvm.h.
1394   Add liblvm2app Makefile installation targets.
1395   Add liblvm pkgconfig file.
1396   Use newly-independent LVM_LIBAPI in liblvm soname.  E.g. liblvm2app.so.2.1.
1397   Add an API version number, LVM_LIBAPI, to the VERSION string for liblvm.
1398   Pass a pointer to struct cmd_context to init_multiple_segtypes
1399   Return EINVALID_CMD_LINE not success when invalid VG name format is used.
1400   Remove unnecessary messages after vgcreate/vgsplit refactor (2.02.49).
1401   Add log_errno to set a specific errno and replace log_error in due course.
1402   Change create_toolcontext to still return an object if it fails part-way.
1403   Add EUNCLASSIFIED (-1) as the default LVM errno code.
1404   Store any errno and error messages issued while processing each command.
1405   Use log_error macro consistently throughout in place of log_err.
1406
1407 Version 2.02.49 - 15th July 2009
1408 ================================
1409   Add readonly locking type to replace implementation of --ignorelockingfailure.
1410   Exclude VG_GLOBAL from vg_write_lock_held so scans open devs read-only again.
1411   Add unit test case for liblvm VG create/delete APIs.
1412   Add liblvm APIs to implement creation and deletion of VGs.
1413   Initialize cmd->cmd_line to "liblvm" in new liblvm library.
1414   Place handles to liblvm objects for pv, vg, lv, lvseg, pvseg inside lvm.h.
1415   Refactor vgsplit and vgextend to remove READ_REQUIRE_RESIZEABLE flag.
1416   Use _exit() not exit() after forking to avoid flushing libc buffers twice.
1417   Add cast to log_info arg in _find_labeller to avoid Sparc64 warning.
1418   Make cmd->cmd_line const.
1419   Fix dev name mismatch in vgcreate man page example.
1420   Refactor vg_remove_single for use in liblvm.
1421   Make all tools use consistent lock ordering obtaining VG_ORPHAN lock second.
1422   Check md devices for a partition table during device scan.
1423   Add extended device (blkext) and md partition (mdp) types to filters.
1424   Make text metadata read errors for segment areas more precise.
1425   Fix text segment metadata read errors to mention correct segment name.
1426   Include segment and LV names in text segment import error messages.
1427   Add parent node to config_node structure.
1428   Update vgsplit and vgcreate to call new vg_create and 'set' functions.
1429   Change vg_create to take minimal parameters, obtain a lock, and return vg_t.
1430   Refactor vgchange extent_size, max_lv, max_pv, and alloc_policy for liblvm.
1431   Update t-vgcreate-usage.sh to test for default vg properties.
1432   Fix memory leak in vgsplit when re-reading the vg.
1433   Make various exit/cleanup paths more robust after lvm init failures.
1434   Use LCK_NONBLOCK implicitly instead of explicit vg_read() flag.
1435   Remove unnecessary locking and existence tests from new vg_read() interface.
1436   Permit several segment types to be registered by a single shared object.
1437   Update the man pages to document size units uniformly.
1438   Allow commandline sizes to be specified in terms of bytes and sectors.
1439   Update 'md_chunk_alignment' to use stripe-width to align PV data area.
1440   Update test/t-inconsistent-metadata.sh to match new vg_read interface.
1441   Add lvmcache_init() to polldaemon initialization.
1442   Convert tools to use new vg_read / vg_read_for_update.
1443   Fix segfault in vg_release when vg->cmd is NULL.
1444
1445 Version 2.02.48 - 30th June 2009
1446 ================================
1447   Abort if automatic metadata correction fails when reading VG to update it.
1448   Explicitly request fallback to default major number in device mapper.
1449   Ignore suspended devices during repair.
1450   Call vgreduce --removemissing automatically to fix missing PVs in dmeventd.
1451   Suggest using lvchange --resync when adding leg to not-yet-synced mirror.
1452   Destroy toolcontext on clvmd exit to avoid memory pool leaks.
1453   Fix lvconvert not to poll mirror if no conversion in progress.
1454   Fix memory leaks in toolcontext error path.
1455   Reinstate partial activation support in clustered mode. (2.02.40)
1456   Allow metadata correction even when PVs are missing.
1457   Use 'lvm lvresize' instead of 'lvresize' in fsadm.
1458   Do not use '-n' realine option in fsadm for busybox compatiblity.
1459   Add vg_lock_newname() library function for vgrename, vgsplit and vgcreate.
1460   Round up requested readahead to at least one page and print warning.
1461   Try to repair vg before actual vgremove when force flag provided.
1462   Fix possible double release of VG after recovery.
1463   Add parameter to process_each_vg specifying what to do with inconsistent VG.
1464   Unify error messages when processing inconsistent volume group.
1465   Use lvconvert --repair instead of vgreduce in mirror dmeventd DSO.
1466   Introduce lvconvert --use_policies (repair policy according to lvm.conf).
1467   Update clvmd-corosync to match new corosync API.
1468   Fix lib Makefile to include any shared libraries in default target.
1469   Fix rename of active snapshot with virtual origin.
1470   Fix convert polling to ignore LV with different UUID.
1471   Cache underlying device readahead only before activation calls.
1472   Fix segfault when calculating readahead on missing device in vgreduce.
1473   Remove verbose 'visited' messages.
1474   Handle multi-extent mirror log allocation when smallest PV has only 1 extent.
1475   Add LSB standard headers and functions (incl. reload) to clvmd initscript.
1476   When creating new LV, double-check that name is not already in use.
1477   Remove /dev/vgname/lvname symlink automatically if LV is no longer visible.
1478   Rename internal vorigin LV to match visible LV.
1479   Suppress 'removed' messages displayed when internal LVs are removed.
1480   Fix lvchange -a and -p for sparse LVs.
1481   Fix lvcreate --virtualsize to activate the new device immediately.
1482   Make --snapshot optional with lvcreate --virtualsize.
1483   Generalise --virtualoriginsize to --virtualsize.
1484   Skip virtual origins in process_each_lv_in_vg() without --all.
1485   Fix counting of virtual origin LVs in vg_validate.
1486   Attempt to load dm-zero module if zero target needed but not present.
1487
1488 Version 2.02.47 - 22nd May 2009
1489 ===============================
1490   Rename liblvm.so to liblvm2app.so and use configure --enable-applib.
1491   Reinstate version in liblvm2cmd.so soname. (2.02.44)
1492
1493 Version 2.02.46 - 21st May 2009
1494 ===============================
1495   Inherit readahead setting from underlying devices during activation.
1496   Detect LVs active on remote nodes by querying locks if supported.
1497   Enable online resizing of mirrors.
1498   Use suspend with flush when device size was changed during table preload.
1499   Implement query_resource_fn for cluster_locking.
1500   Support query_resource_fn in locking modules.
1501   Introduce CLVMD_CMD_LOCK_QUERY command for clvmd.
1502   Fix pvmove to revert operation if temporary mirror creation fails.
1503   Fix metadata export for VG with missing PVs.
1504   Add vgimportclone and install it and the man page by default.
1505   Force max_lv restriction only for newly created LV.
1506   Remove unneeded import parameter from lv_create_empty.
1507   Merge lv_is_displayable and lv_is_visible functions.
1508   Introduce lv_set_visible & lv_set_hidden functions.
1509   Fix lv_is_visible to handle virtual origin.
1510   Introduce link_lv_to_vg and unlink_lv_from_vg functions.
1511   Remove lv_count from VG and use counter function instead.
1512   Fix snapshot segment import to not use duplicate segments & replace.
1513   Do not query nonexistent devices for readahead.
1514   Remove NON_BLOCKING lock flag from tools and set a policy to auto-set.
1515   Remove snapshot_count from VG and use function instead.
1516   Fix first_seg() call for empty segment list.
1517   Add install_lvm2 makefile target to install only the LVM2 components.
1518   Reject missing PVs from allocation in toollib.
1519   Fix PV datalignment for values starting prior to MDA area. (2.02.45)
1520   Add sparse devices: lvcreate -s --virtualoriginsize (hidden zero origin).
1521   Fix minimum width of devices column in reports.
1522   Add lvs origin_size field.
1523   Fix linux configure --enable-debug to exclude -O2.
1524   Implement lvconvert --repair for repairing partially-failed mirrors.
1525   Fix vgreduce --removemissing failure exit code.
1526   Fix remote metadata backup for clvmd.
1527   Introduce unlock_and_release_vg macro.
1528   Introduce vg_release() to be called to free every struct volume_group.
1529   Alloc PV internal structure from VG mempool if possible.
1530   Fix metadata backup to run after vg_commit always.
1531   Tidy clvmd volume lock cache functions.
1532   Fix pvs report for orphan PVs when segment attributes are requested.
1533   Fix pvs -a output to not read volume groups from non-PV devices.
1534   Add MMC (mmcblk) device type to filters.
1535   Introduce memory pools per volume group (to reduce memory for large VGs).
1536   Use copy of PV structure when manipulating global PV lists.
1537   Always return exit error status when locking of volume group fails.
1538   Fix mirror log convert validation question.
1539   Avoid referencing files from DESTDIR during build process.
1540   Avoid creating some static libraries unless configured --enable-static_link.
1541   Enable use of cached metadata for pvs and pvdisplay commands.
1542   Add missing 'device-mapper' internal subdir build dependency.
1543   Fix memory leak in mirror allocation code.
1544   Save and restore the previous logging level when log level is changed.
1545   Fix error message when archive initialization fails.
1546   Make sure clvmd-corosync releases the lockspace when it exits.
1547   Fix segfault for vgcfgrestore on VG with missing PVs.
1548   Block SIGTERM & SIGINT in clvmd subthreads.
1549   Detect and conditionally wipe swapspace signatures in pvcreate.
1550   Fix maximal volume count check for snapshots if max_lv set for volume group.
1551   Fix lvcreate to remove unused cow volume if the snapshot creation fails.
1552   Fix error messages when PV uuid or pe_start reading fails.
1553   Build new liblvm application-level library.
1554   Rename liblvm.a to liblvm-internal.a.
1555   Flush memory pool and fix locking in clvmd refresh and backup command.
1556   Fix unlocks in clvmd-corosync. (2.02.45)
1557   Fix error message when adding metadata directory to internal list fails.
1558   Fix size and error message of memory allocation at backup initialization.
1559   Remove old metadata backup file after renaming VG.
1560   Restore log_suppress state when metadata backup file is up-to-date.
1561
1562 Version 2.02.45 - 3rd March 2009
1563 ================================
1564   Avoid scanning empty metadata areas for VG names.
1565   Attempt proper clean up in child before executing new binary in exec_cmd().
1566   Do not scan devices if reporting only attributes from PV label.
1567   Use pkgconfig to obtain corosync library details during configuration.
1568   Fix error returns in clvmd-corosync interface to DLM.
1569   Add --refresh to vgchange and vgmknodes man pages.
1570   Pass --test from lvresize to fsadm as --dry-run.
1571   Supply argv[] list to exec_cmd() to allow for variable number of parameters.
1572   Prevent fsadm from checking mounted filesystems.
1573   No longer treats any other key as 'no' when prompting in fsadm.
1574   Tidy fsadm command line processing.
1575   Add lib/lvm.h and lib/lvm_base.c for the new library interface.
1576   Move tools/version.h to lib/misc/lvm-version.h.
1577   Split LVM_VERSION into MAJOR, MINOR, PATCHLEVEL, RELEASE and RELEASE_DATE.
1578   Add system_dir parameter to create_toolcontext().
1579   Add --dataalignment to pvcreate to specify alignment of data area.
1580   Exclude LCK_CACHE locks from _vg_lock_count, fixing interrupt unblocking.
1581   Provide da and mda locations in debug message when writing text format label.
1582   Mention the restriction on file descriptors at invocation on the lvm man page.
1583   Index cached vgmetadata by vgid not vgname to cope with duplicate vgnames.
1584   No longer require kernel and metadata major numbers to match.
1585   Add a fully-functional get_cluster_name() to clvmd corosync interface.
1586   Remove duplicate cpg_initialize from clvmd startup.
1587   Add option to /etc/sysconfig/cluster to select cluster type for clvmd.
1588   Allow clvmd to start up if its lockspace already exists.
1589   Separate PV label attributes which do not need parse metadata when reporting.
1590   Remove external dependency on the 'cut' command from fsadm.
1591   Fix pvs segfault when pv mda attributes requested for not available PV.
1592   Add fsadm support for reszing ext4 filesysystems.
1593   Move locking_type reading inside init_locking().
1594   Rename get_vgs() to get_vgnames() and clarify related error messages.
1595   Allow clvmd to be built with all cluster managers & select one on cmdline.
1596   Mention --with-clvmd=corosync in ./configure.
1597   Replace internal vg_check_status() implementation.
1598   Rename vg_read() to vg_read_internal().
1599
1600 Version 2.02.44 - 26th January 2009
1601 ===================================
1602   Fix --enable-static_link after the recent repository changes.
1603   Add corosync/DLM cluster interface to clvmd.
1604   Add --nameprefixes, --unquoted, --rows to pvs, vgs, lvs man pages.
1605   Fix lvresize size conversion for fsadm when block size is not 1K.
1606   Fix pvs segfault when run with orphan PV and some VG fields.
1607   Display a 'dev_size' of zero for missing devices in reports.
1608   Add pv_mda_size to pvs and vg_mda_size to vgs.
1609   Fix lvmdump /sys listing to include virtual devices directory.
1610   Add "--refresh" functionality to vgchange and vgmknodes.
1611   Avoid exceeding LV size when wiping device.
1612   Calculate mirror log size instead of using 1 extent.
1613   Ensure requested device number is available before activating with it.
1614   Fix incorrect exit status from 'help <command>'.
1615   Fix vgrename using UUID if there are VGs with identical names.
1616   Fix segfault when invalid field given in reporting commands.
1617   Move is_static from cmd to global is_static().
1618   Refactor init_lvm() for lvmcmdline and clvmd.
1619   Add liblvm interactive test infrastructure to build.
1620   Add skeleton lvm2.h file in preparation for a shared library interface.
1621   Use better random seed value in temp file creation.
1622   Add read_urandom to read /dev/urandom. Use in uuid calculation.
1623   Use displayable_lvs_in_vg and lv_is_displayable for consistency throughout.
1624   Fix race in vgcreate that would result in second caller overwriting first.
1625   Fix uninitialised lv_count in vgdisplay -c.
1626   Don't skip updating pvid hash when lvmcache_info struct got swapped.
1627   Add tinfo to termcap search path for pld-linux.
1628   Fix startup race in clvmd.
1629   Generate Red Hat clvmd startup script at config time with correct paths.
1630   Fix clvmd & dmeventd builds after tree restructuring.
1631   Cope with snapshot dependencies when removing a whole VG with lvremove.
1632   Make man pages and tool help text consistent using | for alternative options.
1633
1634 Version 2.02.43 - 10th November 2008
1635 ====================================
1636   Merge device-mapper into the lvm2 tree.
1637   Correct prototype for --permission on lvchange and lvcreate man pages.
1638   Exit with non-zero status from vgdisplay if couldn't show any requested VG.
1639   Move list.c into libdevmapper and rename functions.
1640   Rename a couple of variables that matched function names.
1641   Use simplified x.y.z version number in libdevmapper.pc.
1642   Remove ancient debian directory.
1643   Split out lvm-logging.h from log.h and lvm-globals.[ch] from log.[ch].
1644
1645 Version 2.02.42 - 26th October 2008
1646 ===================================
1647   Accept locking fallback_to_* options in the global section as documented.
1648   Fix temp table activation in mirror conversions not to happen in other cmds.
1649   Fix temp table in mirror conversions to use always-present error not zero.
1650
1651 Version 2.02.41 - 17th October 2008
1652 ===================================
1653   Use temp table to set device size when converting mirrors.
1654   In resume_mirror_images replace activate_lv with resume_lv as workaround.
1655   Avoid overwriting in-use on-disk text metadata by forgetting MDA_HEADER_SIZE.
1656   Fix snapshot monitoring library to not cancel monitoring invalid snapshot.
1657   Generate man pages from templates and include version.
1658   Add usrlibdir and usrsbindir to configure.
1659   Fix conversion of md chunk size into sectors.
1660   Free text metadata buffer after a failure writing it.
1661   Fix misleading error message when there are no allocatable extents in VG.
1662   Fix handling of PVs which reappeared with old metadata version.
1663   Fix mirror DSO to call vgreduce with proper parameters.
1664   Fix validation of --minor and --major in lvcreate to require -My always.
1665   Fix release: clvmd build, vgreduce consolidate & tests, /dev/ioerror warning.
1666
1667 Version 2.02.40 - 19th September 2008
1668 =====================================
1669   Allow lvremove to remove LVs from VGs with missing PVs.
1670   In VG with PVs missing, by default allow activation of LVs that are complete.
1671   Track PARTIAL_LV and MISSING_PV flags internally.
1672   Require --force with --removemissing in vgreduce to remove partial LVs.
1673   No longer write out PARTIAL flag into metadata backups.
1674   Treat new default activation/missing_stripe_filler "error" as an error target.
1675   Remove internal partial_mode.
1676   Add devices/md_chunk_alignment to lvm.conf.
1677   Pass struct physical_volume to pe_align and adjust for md chunk size.
1678   Store sysfs location in struct cmd_context.
1679   Avoid shuffling remaining mirror images when removing one, retaining primary.
1680   Add missing LV error target activation in _remove_mirror_images.
1681   Prevent resizing an LV while lvconvert is using it.
1682   Avoid repeatedly wiping cache while VG_GLOBAL is held in vgscan & pvscan.
1683   Fix pvresize to not allow resize if PV has two metadata areas.
1684   Fix setting of volume limit count if converting to lvm1 format.
1685   Fix vgconvert logical volume id metadata validation.
1686   Fix lvmdump metadata gather option (-m) to work correctly.
1687   Fix allocation bug in text metadata format write error path.
1688   Fix vgcfgbackup to properly check filename if template is used.
1689   configure aborts if lcov or genhtml are missing with --enable-profiling
1690   vgremove tries to remove lv snapshot first.
1691   Added function lv_remove_with_dependencies().
1692   Improve file descriptor leak detection to display likely culprit and filename.
1693   Change clustered mirror kernel module name from cmirror to dm-log-clustered.
1694   Avoid looping forever in _pv_analyze_mda_raw used by pvck.
1695   Change lvchange exit status to indicate if any part of the operation failed.
1696   Fix pvchange and pvremove to handle PVs without mdas.
1697   Refactor _text_pv_read and always return mda list if requested.
1698   Fix configure to work w/o readline unless --enable-readline used. (2.02.39)
1699   Remove is_lvm_partition template which has not yet been coded.
1700   Refactor pvcreate to separate parameter parsing from validation logic.
1701   Check for label_write() failure in _text_pv_write().
1702   Add pvcreate tests and update vgsplit tests to handle lvm1 and lvm2 metadata.
1703   Fix pvchange -M1 -u to preserve existing extent locations when there's a VG.
1704   Cease recognising snapshot-in-use percentages returned by early devt kernels.
1705   Add backward-compatible flags field to on-disk format_text metadata.
1706   Fix dmeventd monitoring libraries to link against liblvm2cmd again. (2.02.39)
1707
1708 Version 2.02.39 - 27th June 2008
1709 ================================
1710   Enable readline by default if available.
1711   Update autoconf to 2008-01-16.
1712   Add $DISTCLEAN_DIRS to make.tmpl.in.
1713   Create coverage reports with --enable-profiling and make lcov or lcov-dated.
1714   Fix up cache for PVs without mdas after consistent VG metadata is processed.
1715   Update validation of safe mirror log type conversions in lvconvert.
1716   Fix lvconvert to disallow snapshot and mirror combinations.
1717   Fix reporting of LV fields alongside unallocated PV segments.
1718   Add --unquoted and --rows to reporting tools.
1719   Add and use uninitialized_var() macro to suppress invalid compiler warnings.
1720   Introduce enum for md minor sb version to suppress compiler warning.
1721   Avoid undefined return value after _memlock manipulation in lvm2_run.
1722   Avoid link failure if configured without --enable-cmdlib or --enable-readline.
1723   Make clvmd return at once if other nodes down in a gulm or openais cluster.
1724   Fix and improve readahead 'auto' calculation for stripe_size.
1725   Fix lvchange output for -r auto setting if auto is already set.
1726   Add test case for readahead.
1727   Avoid ambiguous use of identifier error_message_produced.
1728   Begin syncing configure.in for merge/unification with device-mapper.
1729   Fix add_mirror_images not to dereference uninitialized log_lv upon failure.
1730   Don't call openlog for every debug line output by clvmd.
1731   Add --force to lvextend and lvresize.
1732   Fix vgchange not to activate component mirror volumes directly.
1733   Fix test directory clean up in make distclean.
1734
1735 Version 2.02.38 - 11th June 2008
1736 ================================
1737   Fix tracking of validity of PVs with no mdas in lvmcache.
1738   Fix return values for reporting commands when run with no PVs, LVs, or VGs.
1739   Add omitted unlock_vg() call when sigint_caught() during vg processing.
1740   Fix free_count when reading pool metadata.
1741   Fix segfault when using pvcreate on a device containing pool metadata.
1742   Fix segfault after _free_vginfo by remembering to remove vginfo from list.
1743   Tweak detection of invalid fid after changes to PVs in VG in _vg_read.
1744   Revert assuming precommitted metadata is live when activating (unnecessary).
1745   Drop cached metadata for disappearing VG in vgmerge.
1746   In script-processing mode, stop if any command fails.
1747   Warn if command exits with non-zero status code without a prior log_error.
1748   Check lv_count in vg_validate.
1749   Add --nameprefixes to reporting tools for field name prefix output format.
1750
1751 Version 2.02.37 - 6th June 2008
1752 ===============================
1753   Make clvmd-cman use a hash rather than an array for node updown info.
1754   Correct config file line numbers in messages when parsing comments.
1755   Drop cached metadata when renaming a VG.
1756   Allow for vginfo changing during _vg_read.
1757   Decode numbers in clvmd debugging output.
1758   Add missing deactivation after activation failure in lvcreate -Zy.
1759   When activating, if precommitted metadata is still cached, assume it's live.
1760   When removing LV symlinks, skip any where the VG name is not determined.
1761   Drop metadata cache if update fails in vg_revert or vg_commit.
1762   Avoid spurious duplicate VG messages referring to VGs that are gone.
1763   Drop dev_name_confirmed error message to debug level.
1764   Fix setpriority error message to signed int.
1765   Temporarily disable dmeventd mirror monitoring during lvchange --resync.
1766   Refactor some vginfo manipulation code.
1767   Add assertions to trap deprecated P_ and V_ lock usage.
1768   Add missing mutex around clvmd lvmcache_drop_metadata library call.
1769   Fix uninitialised mutex in clvmd if all daemons are not running at startup.
1770   Avoid using DLM locks with LCK_CACHE type P_ lock requests.
1771   When asked to drop cached committed VG metadata, invalidate cached PV labels.
1772   Drop metadata cache before writing precommitted metadata instead of after.
1773   Don't touch /dev in vgrename if activation is disabled.
1774
1775 Version 2.02.36 - 29th April 2008
1776 =================================
1777   Fix fsadm.sh to work with older blockdev, blkid & readlink binaries.
1778   Fix lvresize to pass new size to fsadm when extending device.
1779   Remove unused struct in clvmd-openais, and use correct node count.
1780   Fix nodes list in clvmd-openais, and allow for broadcast messages.
1781   Exclude VG_GLOBAL from internal concurrent VG lock counter.
1782   Fix vgsplit internal counting of snapshot LVs.
1783   Fix vgmerge snapshot_count when source VG contains snapshots.
1784   Simplify clvmd-openais by using non-async saLckResourceLock.
1785   Fix internal LV counter when a snapshot is removed.
1786   Fix metadata corruption writing lvm1-formatted metadata with snapshots.
1787   Fix lvconvert -m0 allocatable space check.
1788
1789 Version 2.02.35 - 15th April 2008
1790 =================================
1791   Drop cached VG metadata before and after committing changes to it.
1792   Rename P_global to P_#global.
1793   Don't attempt remote metadata backups of non-clustered VGs. (2.02.29)
1794   Don't store fid in VG metadata cache to avoid clvmd segfault. (2.02.34)
1795   Update vgsplit tests to verify loosening of active LV restriction.
1796   Update vgsplit to only restrict split with active LVs involved in split.
1797   Add lv_is_active() to determine whether an lv is active.
1798
1799 Version 2.02.34 - 10th April 2008
1800 =================================
1801   Improve preferred_names lvm.conf example.
1802   Fix vgdisplay 'Cur LV' field to match lvdisplay output.
1803   Fix lv_count report field to exclude hidden LVs.
1804   Add vg_is_clustered() helper function.
1805   Fix vgsplit to only move hidden 'snapshotN' LVs when necessary.
1806   Update vgsplit tests for lvnames on the cmdline.
1807   Update vgsplit man page to reflect lvnames on the cmdline.
1808   Update vgsplit to take "-n LogicalVolumeName" on the cmdline.
1809   Use clustered mirror log with pvmove in clustered VGs, if available.
1810   Fix some pvmove error status codes.
1811   Fix vgsplit error paths to release vg_to lock.
1812   Indicate whether or not VG is clustered in vgcreate log message.
1813   Mention default --clustered setting in vgcreate man page.
1814   Add config file overrides to clvmd when it reads the active LVs list.
1815   Fix vgreduce to use vg_split_mdas to check sufficient mdas remain.
1816   Add (empty) orphan VGs to lvmcache during initialisation.
1817   Fix orphan VG name used for format_pool.
1818   Create a fid for internal orphan VGs.
1819   Update lvmcache VG lock state for all locking types now.
1820   Fix output if overriding command_names on cmdline.
1821   Add detection of clustered mirror log capability.
1822   Add check to vg_commit() ensuring VG lock held before writing new VG metadata.
1823   Add validation of LV name to pvmove -n.
1824   Make clvmd refresh the context correctly when lvm.conf is updated.
1825   Add some basic internal VG lock validation.
1826   Add per-command flags to control which commands use the VG metadata cache.
1827   Fix vgsplit locking of new VG (2.02.30).
1828   Avoid erroneous vgsplit error message for new VG. (2.02.29)
1829   Suppress duplicate message when lvresize fails because of invalid vgname.
1830   Cache VG metadata internally while VG lock is held.
1831   Fix redundant lvresize message if vg doesn't exist.
1832   Fix another allocation bug with clvmd and large node IDs.
1833   Add find_lv_in_lv_list() and find_pv_in_pv_list().
1834   Fix uninitialised variable in clvmd that could cause odd hangs.
1835   Add vgmerge tests.
1836   Add pvseg_is_allocated() for identifying a PV segment allocated to a LV.
1837   Add list_move() for moving elements from one list to another.
1838   Add 'is_reserved_lvname()' for identifying hidden LVs.
1839   Correct command name in lvmdiskscan man page.
1840   clvmd no longer crashes if it sees nodeids over 50.
1841   Fix potential deadlock in clvmd thread handling.
1842   Refactor text format initialisation into _init_text_import.
1843   Escape double quotes and backslashes in external metadata and config data.
1844   Add functions for escaping double quotes in strings.
1845   Rename count_chars_len to count_chars.
1846   Use return_0 in a couple more places.
1847   Correct a function name typo in _line_append error message.
1848   Include limits.h in clvmd so it compiles with newer headers.
1849   Add VirtIO disks (virtblk) to filters.
1850   Fix resetting of MIRROR_IMAGE and VISIBLE_LV after removal of LV. (2.02.30)
1851   Fix remove_layer_from_lv to empty the LV before removing it. (2.02.30)
1852   Add missing no-longer-used segs_using_this_lv test to check_lv_segments.
1853   Remove redundant non-NULL tests before calling free in clvmd.c.
1854   Avoid a compiler warning: make is_orphan's parameter const.
1855   Fix lvconvert detection of mirror conversion in progress. (2.02.30)
1856   Avoid automatic lvconvert polldaemon invocation when -R specified. (2.02.30)
1857   Fix 'pvs -a' to detect VGs of PVs without metadata areas.
1858   Divide up internal orphan volume group by format type.
1859   Update usage message for clvmd.
1860   Fix clvmd man page not to print <br> and clarified debug options.
1861   Fix lvresize to support /dev/mapper prefix in the LV name.
1862   Fix unfilled parameter passed to fsadm from lvresize.
1863   Update fsadm to call lvresize if the partition size differs (with option -l).
1864   Fix fsadm to support VG/LV names.
1865
1866 Version 2.02.33 - 31st January 2008
1867 ===================================
1868   Fix mirror log name construction during lvconvert. (2.02.30)
1869   Make monitor_dev_for_events recurse through the stack of LVs.
1870   Clean up some more compiler warnings.
1871   Some whitespace tidy-ups.
1872   Use stack return macros throughout.
1873   Rely upon internally-cached PV labels while corresponding VG lock is held.
1874
1875 Version 2.02.32 - 29th January 2008
1876 ===================================
1877   Fix two check_lv_segments error messages to show whole segment.
1878   Refactor mirror log attachment code.
1879   Fix internal metadata corruption in lvchange --resync. (2.02.30)
1880   Fix new parameter validation in vgsplit and test mode. (2.02.30)
1881   Remove redundant cnxman-socket.h file from clvmd directory.
1882   Fix pvs, vgs, lvs error exit status on some error paths.
1883
1884 Version 2.02.31 - 19th January 2008
1885 ===================================
1886   Fix lvcreate --nosync not to wait for non-happening sync. (2.02.30)
1887   Add very_verbose lvconvert messages.
1888   Avoid readahead error message with default setting of lvcreate -M1. (2.02.29)
1889
1890 Version 2.02.30 - 17th January 2008
1891 ===================================
1892   Set default readahead to twice maximium stripe size.
1893   Reinstate VG extent size and stripe size defaults (halved). (2.02.29)
1894   Add lists of stacked LV segments using each LV to the internal metadata.
1895   Change vgsplit -l (for unimplemented --list) into --maxlogicalvolumes.
1896   Fix process_all_pvs to detect non-orphans with no MDAs correctly.
1897   Don't use block_on_error with mirror targets version 1.12 and above.
1898   Update vgsplit to accept vgcreate options when new VG is destination.
1899   Update vgsplit to accept existing VG as destination.
1900   lvconvert waits for completion of initial sync by default.
1901   Refactor vgcreate for parameter validation and add tests.
1902   Add new convert_lv field to lvs output.
1903   Print warning when lvm tools are running as non-root.
1904   Add snapshot dmeventd library (enables dmeventd snapshot monitoring).
1905   Prevent pvcreate from overwriting MDA-less PVs belonging to active VGs.
1906   Fix a segfault if using pvs with --all argument. (2.02.29)
1907   Update --uuid argument description in man pages.
1908   Fix vgreduce PV list processing not to process every PV in the VG. (2.02.29)
1909   Extend lvconvert to use polldaemon.
1910   Add support for stacked mirrors.
1911   Major restructuring of pvmove and lvconvert layer manipulation code.
1912   Replace tools/fsadm with scripts/fsadm.sh.
1913   Append fields to report/pvsegs_cols_verbose.
1914   Permit LV segment fields with PV segment reports.
1915   Add seg_start_pe and seg_pe_ranges to reports.
1916
1917 Version 2.02.29 - 5th December 2007
1918 ===================================
1919   Make clvmd backup vg metadata on remote nodes.
1920   Refactor pvmove allocation code.
1921   Decode cluster locking state in log message.
1922   Change file locking state messages from debug to very verbose.
1923   Fix --addtag to drop @ prefix from name.
1924   Stop clvmd going haywire if a pre_function fails.
1925   Convert some vg_reads into vg_lock_and_reads.
1926   Avoid nested vg_reads when processing PVs in VGs and fix associated locking.
1927   Accept sizes with --readahead argument.
1928   Store size arguments as sectors internally.
1929   Attempt to remove incomplete LVs with lvcreate zeroing/activation problems.
1930   Add read_ahead activation code.
1931   Add activation/readahead configuration option and FMT_RESTRICTED_READAHEAD.
1932   Extend readahead arg to accept "auto" and "none".
1933   Add lv_read_ahead and lv_kernel_read_ahead fields to reports and lvdisplay.
1934   Prevent lvconvert -s from using same LV as origin and snapshot.
1935   Fix human-readable output of odd numbers of sectors.
1936   Add pv_mda_free and vg_mda_free fields to reports for raw text format.
1937   Add LVM2 version to 'Generated by' comment in metadata.
1938   Show 'not usable' space when PV is too large for device in pvdisplay.
1939   Ignore and fix up any excessive device size found in metadata.
1940   Fix error message when fixing up PV size in lvm2 metadata (2.02.11).
1941   Fix orphan-related locking in pvdisplay and pvs.
1942   Fix missing VG unlocks in some pvchange error paths.
1943   Add some missing validation of VG names.
1944   Rename validate_vg_name() to validate_new_vg_name().
1945   Change orphan lock to VG_ORPHANS.
1946   Change format1 to use ORPHAN as orphan VG name.
1947   Convert pvchange, pvdisplay, pvscan to use is_orphan()
1948   Add is_orphan_vg() and change all hard-coded checks to use it.
1949   Detect md superblocks version 1.0, 1.1 and 1.2.
1950   Add _alloc_pv() and _free_pv() from _pv_create() code and fix error paths.
1951   Add pv_dev_name() to access PV device name.
1952   Add const attributes to pv accessor functions.
1953   Refactor vg_add_snapshot() and lv_create_empty().
1954   Handle new sysfs subsystem/block/devices directory structure.
1955   Run test with LVM_SYSTEM_DIR pointing to private root and /dev dirs.
1956   Fix a bug in lvm_dump.sh checks for lvm/dmsetup binaries.
1957   Fix underquotations in lvm_dump.sh.
1958   Refactor lvcreate stripe and mirror parameter validation.
1959   Print --help output to stdout, not stderr.
1960   After a cmdline processing error, don't print help text but suggest --help.
1961   Add %PVS extents option to lvresize, lvextend, and lvcreate.
1962   Add 'make check' to run tests in new subdirectory 'test'.
1963   Moved the obsolete test subdirectory to old-tests.
1964   Cope with relative paths in configure --with-dmdir.
1965   Remove no-longer-correct restrictions on PV arg count with stripes/mirrors.
1966   Fix strdup memory leak in str_list_dup().
1967   Link with -lpthread when static SELinux libraries require that.
1968   Detect command line PE values that exceed their 32-bit range.
1969   Include strerror string in dev_open_flags' stat failure message.
1970   Move guts of pvresize into library.
1971   Avoid error when --corelog is provided without --mirrorlog. (2.02.28)
1972   Correct --mirrorlog argument name in man pages (not --log).
1973   Clear MIRROR_NOTSYNCED LV flag when converting from mirror to linear.
1974   Modify lvremove to prompt for removal if LV active on other cluster nodes.
1975   Add '-f' to vgremove to force removal of VG even if LVs exist.
1976
1977 Version 2.02.28 - 24th August 2007
1978 ==================================
1979   Fix clvmd logging so you can get lvm-level debugging out of it.
1980   Introduce VG_GLOBAL lock type for vgscan/pvscan to trigger clvmd -R.
1981   Change locking_flags from int to uint32_t.
1982   Fix clvmd -R, so it fully refreshes the caches.
1983   Change lvconvert_mirrors to use mirror segtype not striped.
1984   Fix lvconvert_mirrors detection of number of existing mirrors.
1985   Clean up numerous compiler warnings that appeared in recent releases.
1986   Remove several unused parameters from _allocate().
1987   Only permit --force, --verbose and --debug arguments to be repeated.
1988   Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1.
1989   Move guts of vgremove and lvremove into library, including yes_no_prompt.
1990   Allow clvmd debug to be turned on in a running daemon using clvmd -d [-C].
1991   Update to use autoconf 2.61, while still supporting 2.57.
1992   Add more cluster info to lvmdump.
1993   Add further const attributes throughout.
1994   Add support for renaming mirrored LVs.
1995   Factor out core of lvrename() to library function.
1996   Add --mirrorlog argument to specify log type for mirrors.
1997   Don't attempt to monitor devices if their creation failed in _lv_activate.
1998   Don't leak a file descriptor in fcntl_lock_file() when fcntl fails.
1999   Replace create_dir with dm_create_dir.
2000   Detect stream write failure reliably with lvm_fclose using dm_fclose.
2001   Fix clvmd if compiled with gulm support. (2.02.26)
2002   Fix lvdisplay man page to say LV size is reported in sectors, not KB.
2003   Add vg_lock_and_read() external library function.
2004   Fix loading of persistent cache if cache_dir is used. (2.02.23)
2005   Reduce _compare_paths lstat error message from log_error to log_very_verbose.
2006   Create util.h with last_path_component replacing strdup + basename.
2007   Use gcc's printf attribute wherever possible.
2008   In _line_append, use "sizeof buf - 1" rather than equivalent "4095".
2009   Introduce is_same_inode macro, now including a comparison of st_dev.
2010   Don't leak a file descriptor in _lock_file() when flock fails.
2011   Add SUN's LDOM virtual block device (vdisk) and ps3disk to filters.
2012   Split metadata-external.h out from metadata.h for the tools to use.
2013
2014 Version 2.02.27 - 17th July 2007
2015 ================================
2016   Fix snapshot cow area deactivation if origin is not active. (2.02.13)
2017   Fix configure libdevmapper.h check when --with-dmdir is used.
2018   Turn _add_pv_to_vg() into external library function add_pv_to_vg().
2019   Add pv_by_path() external library function.
2020   Tidy clvmd-openais of redundant bits, and improve an error report.
2021   Cope with find_seg_by_le() failure in check_lv_segments().
2022   Call dev_iter_destroy() if _process_all_devs() is interrupted by sigint.
2023   Add vg_mda_count and pv_mda_count columns to reports.
2024   Fix dumpconfig to use log_print instead of stdout directly.
2025   Remove unused parameter 'fid' from _add_pv_to_vg.
2026   Add kernel and device-mapper targets versions to lvmdump.
2027   Replace BSD (r)index with C89 str(r)chr.
2028   Handle vgsplit of an entire VG as a vgrename.
2029   Reinitialise internal lvmdiskscan variables when called repeatedly.
2030   Fix missing lvm_shell symbol in lvm2cmd library. (2.02.23)
2031   Add vg_status function and clean up vg->status in tools directory.
2032   Add --ignoremonitoring to disable all dmeventd interaction.
2033   Remove get_ prefix from get_pv_* functions.
2034   clvmd-openais now uses cpg_local_get() to get nodeid, rather than Clm.
2035   Print warnings to stderr instead of stdout.
2036
2037 Version 2.02.26 - 15th June 2007
2038 ================================
2039   Update vgcfgrestore man page.
2040   Allow keyboard interrupt during user prompts when appropriate.
2041   Remove unused clvmd system-lv code.
2042   Replace many physical_volume struct dereferences with new get_pv_* functions.
2043   Suppress a benign compile-time warning.
2044   Convert find_pv_in_vg_by_uuid and pv_create to use PV handles.
2045   Add wrappers to some functions in preparation for external LVM library.
2046   Add -f to vgcfgrestore to list metadata backup files.
2047   Add vg_check_status to consolidate vg status checks and error messages.
2048   Add pvdisplay --maps implementation.
2049   Remove unsupported LVM1 options from vgcfgrestore man page.
2050   Update vgcfgrestore man page to show mandatory VG name.
2051   Update vgrename man page to include UUID and be consistent with lvrename.
2052   Add (experimental) OpenAIS support to clvmd.
2053   Fix deactivation code to follow dependencies and remove symlinks.
2054   Fix and clarify vgsplit error messages.
2055   Fix a segfault in device_is_usable() if a device has no table.
2056   Add some more debug messages to clvmd startup.
2057   Misc clvmd cleanups.
2058
2059 Version 2.02.25 - 27th April 2007
2060 =================================
2061   Fix get_config_uint64() to read a 64-bit value not a 32-bit one.
2062   Add -Wformat-security and change one fprintf() to fputs().
2063   Move regex functions into libdevmapper.
2064   Change some #include lines to search only standard system directories.
2065   Add devices/preferred_names config regex list for displayed device names.
2066   Free a temporary dir string in fcntl_lock_file() after use.
2067   Fix a dm_pool_destroy() in matcher_create().
2068   Introduce goto_bad macro.
2069   Fix warnings on x86_64 involving ptrdiff_t in log_error messages.
2070   Update pvck to include text metadata area and record detection.
2071   Add support functions for token counting in config file extracts.
2072   Update pvck to read labels on disk, with --labelsector parameter.
2073   Add count_chars and count_chars_len functions.
2074   Add /sys/block listings to lvm_dump.sh.
2075   Make lvm_dump.sh list /dev recursively.
2076   Fix thread race in clvmd.
2077   Add scan_sector param to label_read and _find_labeller.
2078   Make clvmd cope with quorum devices.
2079   Add extra internal error checking to clvmd.
2080   Add dev_read_circular.
2081   Add pvck command stub.
2082   Update lists of attribute characters in man pages.
2083   Change cling alloc policy attribute character from 'C' to l'.
2084   Fix creation and conversion of mirrors with tags.
2085   Fix vgsplit for lvm1 format (set and validate VG name in PVs metadata).
2086   Split metadata areas in vgsplit properly.
2087
2088 Version 2.02.24 - 19th March 2007
2089 =================================
2090   Fix processing of exit status in init scripts
2091   Fix vgremove to require at least one vg argument.
2092   Fix reading of striped LVs in LVM1 format.
2093   Flag nolocking as clustered so clvmd startup sees clustered LVs. (2.02.10)
2094   Add a few missing pieces of vgname command line validation.
2095   Support the /dev/mapper prefix on most command lines.
2096
2097 Version 2.02.23 - 8th March 2007
2098 ================================
2099   Fix vgrename active LV check to ignore differing vgids.
2100   Remove no-longer-used uuid_out parameter from activation info functions.
2101   Fix two more segfaults if an empty config file section encountered.
2102   Move .cache file into a new /etc/lvm/cache directory by default.
2103   Add devices/cache_dir & devices/cache_file_prefix, deprecating devices/cache.
2104   Create directory in fcntl_lock_file() if required.
2105   Exclude readline support from lvm.static.
2106   Fix a leak in a reporting error path (2.02.19).
2107
2108 Version 2.02.22 - 13th February 2007
2109 ====================================
2110   Correct -b and -P on a couple of man pages.
2111   Add global/units to example.conf.
2112   Fix loading of segment_libraries.
2113   If a PV reappears after it was removed from its VG, make it an orphan.
2114   Don't update metadata automatically if VGIDs don't match.
2115   Fix some vgreduce --removemissing command line validation.
2116
2117 Version 2.02.21 - 30th January 2007
2118 ===================================
2119   Add warning to lvm2_monitoring_init_rhel4 if attempting to stop monitoring.
2120   Fix vgsplit to handle mirrors.
2121   Reorder fields in reporting field definitions.
2122   Fix vgs to treat args as VGs even when PV fields are displayed.
2123   Fix md signature check to handle both endiannesses.
2124
2125 Version 2.02.20 - 25th January 2007
2126 ===================================
2127   dmeventd mirror sets ignore_suspended_devices and avoids scanning mirrors.
2128   Add devices/ignore_suspended_devices to ignore suspended dm devices.
2129   Add some missing close() and fclose() return code checks.
2130   Fix exit statuses of reporting tools (2.02.19).
2131   Add init script for dmeventd monitoring.
2132   lvm.static no longer interacts with dmeventd unless explicitly asked to.
2133   Add field definitions to report help text.
2134   Remove unnecessary cmd arg from target_*monitor_events().
2135   Add private variable to dmeventd shared library interface.
2136   Long-lived processes write out persistent dev cache in refresh_toolcontext().
2137   Fix refresh_toolcontext() always to wipe persistent device filter cache.
2138   Add is_long_lived to toolcontext.
2139   Add --clustered to man pages.
2140   Streamline dm_report_field_* interface.
2141   Change remaining dmeventd terminology 'register' to 'monitor'.
2142   Update reporting man pages.
2143   No longer necessary to specify alignment type for report fields.
2144
2145 Version 2.02.19 - 17th January 2007
2146 ===================================
2147   Fix a segfault if an empty config file section encountered.
2148   Move basic reporting functions into libdevmapper.
2149   Fix partition table processing after sparc changes (2.02.16).
2150   Fix cmdline PE range processing segfault (2.02.13).
2151   Some libdevmapper-event interface changes.
2152   Report dmeventd mirror monitoring status.
2153   Fix dmeventd mirror status line processing.
2154
2155 Version 2.02.18 - 11th January 2007
2156 ===================================
2157   Revised libdevmapper-event interface for dmeventd.
2158   Remove dmeventd mirror status line word limit.
2159   Use CFLAGS when linking so mixed sparc builds can supply -m64.
2160   Prevent permission changes on active mirrors.
2161   Print warning instead of error message if lvconvert cannot zero volume.
2162   Add snapshot options to lvconvert man page.
2163   dumpconfig accepts a list of configuration variables to display.
2164   Change dumpconfig to use --file to redirect output to a file.
2165   Avoid vgreduce error when mirror code removes the log LV.
2166   Remove 3 redundant AC_MSG_RESULTs from configure.in.
2167   Free memory in _raw_read_mda_header() error paths.
2168   Fix ambiguous vgsplit error message for split LV.
2169   Fix lvextend man page typo.
2170   Add configure --with-dmdir to compile against a device-mapper source tree.
2171   Use no flush suspending for mirrors.
2172   Add dmeventd_mirror register_mutex, tidy initialisation & add memlock.
2173   Fix create mirror with name longer than 22 chars.
2174   Fix some activate.c prototypes when compiled without devmapper.
2175   Fix dmeventd mirror to cope if monitored device disappears.
2176
2177 Version 2.02.17 - 14th December 2006
2178 ====================================
2179   Add missing pvremove error message when device doesn't exist.
2180   When lvconvert allocates a mirror log, respect parallel area constraints.
2181   Use loop to iterate through the now-ordered policy list in _allocate().
2182   Check for failure to allocate just the mirror log.
2183   Introduce calc_area_multiple().
2184   Support mirror log allocation when there is only one PV: area_count now 0.
2185   Fix detection of smallest area in _alloc_parallel_area() for cling policy.
2186   Add manpage entry for clvmd -T
2187   Fix gulm operation of clvmd, including a hang when doing lvchange -aey
2188   Fix hang in clvmd if a pre-command failed.
2189
2190 Version 2.02.16 - 1st December 2006
2191 ===================================
2192   Fix VG clustered read locks to use PR not CR.
2193   Adjust some alignments for ia64/sparc.
2194   Fix mirror segment removal to use temporary error segment.
2195   Always compile debug logging into clvmd.
2196   Add startup timeout to RHEL4 clvmd startup script.
2197   Add -T (startup timeout) switch to clvmd.
2198   Improve lvm_dump.sh robustness.
2199   Update lvm2create_initrd to support gentoo.
2200
2201 Version 2.02.15 - 21st November 2006
2202 ====================================
2203   Fix clvmd_init_rhel4 line truncation (2.02.14).
2204   Install lvmdump by default.
2205   Fix check for snapshot module when activating snapshot.
2206   Fix pvremove error path for case when PV is in use.
2207   Warn if certain duplicate config file entries are seen.
2208   Enhance lvm_dump.sh for sysreport integration and add man page.
2209   Fix --autobackup argument which could never disable backups.
2210   Fix a label_verify error path.
2211
2212 Version 2.02.14 - 10th November 2006
2213 ====================================
2214   Fix adjusted_mirror_region_size() to handle 64-bit size.
2215   Add some missing bounds checks on 32-bit extent counters.
2216   Add Petabyte and Exabyte support.
2217   Fix lvcreate error message when 0 extents requested.
2218   lvremove man page: volumes must be cluster inactive before being removed.
2219   Protect .cache manipulations with fcntl locking.
2220   Change .cache timestamp comparisons to use ctime.
2221   Fix mirror log LV writing to set all bits in whole LV.
2222   Fix clustered VG detection and default runlevels in clvmd_init_rhel4.
2223   Fix high-level free space check for partial allocations.
2224
2225 Version 2.02.13 - 27th October 2006
2226 ===================================
2227   Add couple of missing files to tools/Makefile CLEAN_TARGETS.
2228   When adding snapshot leave cow LV mapped device active after zeroing.
2229   Fix a clvmd debug message.
2230   Add dev_flush() to set_lv().
2231   Add lvchange --resync.
2232   Perform high-level free space check before each allocation attempt.
2233   Don't allow a node to remove an LV that's exclusively active on anther node.
2234   Cope if same PV is included more than once in cmdline PE range list.
2235   Set PV size to current device size if it is found to be zero.
2236   Add segment parameter to target_present functions.
2237
2238 Version 2.02.12 - 16th October 2006
2239 ===================================
2240   Fix pvdisplay to use vg_read() for non-orphans.
2241   Fall back to internal locking if external locking lib is missing or fails.
2242   Retain activation state after changing LV minor number with --force.
2243   Propagate clustered flag in vgsplit and require resizeable flag.
2244
2245 Version 2.02.11 - 12th October 2006
2246 ===================================
2247   Add clvmd function to return the cluster name. not used by LVM yet.
2248   Add cling allocation policy.
2249   Change _check_contiguous() to use _for_each_pv().
2250   Extend _for_each_pv() to allow termination without error.
2251   Abstract _is_contiguous().
2252   Remove duplicated pv arg from _check_contiguous().
2253   Accept regionsize with lvconvert.
2254   Add report columns with underscore before field names ending 'size'.
2255   Correct regionsize default on lvcreate man page (MB).
2256   Fix clvmd bug that could cause it to die when a node with a long name crashed.
2257   Add device size to text metadata.
2258   Fix format_text mda_setup pv->size and pv_setup pe_count calculations.
2259   Fix _for_each_pv() for mirror with core log.
2260   Add lvm_dump.sh script to create a tarball of debugging info from a system.
2261   Capture error messages in clvmd and pass them back to the user.
2262   Remove unused #defines from filter-md.c.
2263   Make clvmd restart init script wait until clvmd has died before starting it.
2264   Add -R to clvmd which tells running clvmds to reload their device cache.
2265   Add LV column to reports listing kernel modules needed for activation.
2266   Show available fields if report given invalid field. (e.g. lvs -o list)
2267   Add timestamp functions with --disable-realtime configure option.
2268   Add %VG, %LV and %FREE suffices to lvcreate/lvresize --extents arg.
2269   Fix two potential NULL pointer derefs in error cases in vg_read().
2270   Separate --enable-cluster from locking lib options in lvmconf.sh.
2271   Add a missing comma in lvcreate man page.
2272
2273 Version 2.02.10 - 19th September 2006
2274 =====================================
2275   Fix lvconvert mirror change case detection logic.
2276   Fix mirror log detachment so it correctly becomes a standalone LV.
2277   Extend _check_contiguous() to detect single-area LVs.
2278   Include mirror log (untested) in _for_each_pv() processing.
2279   Use MIRROR_LOG_SIZE constant.
2280   Remove struct seg_pvs from _for_each_pv() to generalise.
2281   Avoid adding duplicates to list of parallel PVs to avoid.
2282   Fix several incorrect comparisons in parallel area avoidance code.
2283   Fix segment lengths when flattening existing parallel areas.
2284   Log existing parallel areas prior to allocation.
2285   Fix mirror log creation when activation disabled.
2286   Don't attempt automatic recovery without proper locking.
2287   When using local file locking, skip clustered VGs.
2288   Add fallback_to_clustered_locking and fallback_to_local_locking parameters.
2289   lvm.static uses built-in cluster locking instead of external locking.
2290   Don't attempt to load shared libraries if built statically.
2291   Change default locking_lib to liblvm2clusterlock.so.
2292   Add skip_dev_dir() to process command line VGs.
2293   Stop clvmd complaining about nodes that have left the cluster.
2294   Move lvm_snprintf(), split_words() and split_dm_name() into libdevmapper.
2295   Add lvconvert man page.
2296   Add mirror options to man pages.
2297   Prevent mirror renames.
2298   Move CMDLIB code into separate file and record whether static build.
2299
2300 Version 2.02.09 - 17th August 2006
2301 ==================================
2302   Fix PE_ALIGN for pagesize over 32KB.
2303   Separate out LVM1_PE_ALIGN and pe_align().
2304   Add lvm_getpagesize wrapper.
2305   Add --maxphysicalvolumes to vgchange.
2306
2307 Version 2.02.08 - 15th August 2006
2308 ==================================
2309   Add checks for duplicate LV name, lvid and PV id before writing metadata.
2310   Report all sanity check failures, not just the first.
2311   Fix missing lockfs on first snapshot creation.
2312   Add unreliable --trustcache option to reporting commands.
2313   Fix locking for mimage removal.
2314   Fix clvmd_init_rhel4 'status' exit code.
2315
2316 Version 2.02.07 - 17th July 2006
2317 ================================
2318   Fix activation logic in lvchange --persistent.
2319   Don't ignore persistent minor numbers when activating.
2320   Use RTLD_GLOBAL when loading shared libraries.
2321   Add some forgotten memlock checks to _vg_read to protect against full scans.
2322   Add mutex to dmeventd_mirror to avoid concurrent execution.
2323   Fix vgreduce --removemissing to return success if VG is already consistent.
2324   Fix return code if VG specified on command line is not found.
2325   Fix PV tools to include orphaned PVs in default output again.
2326   Fixed unaligned access when using clvm.
2327   Fix an extra dev_close in a label_read error path.
2328   Append patches to commit emails.
2329   Fix target_register_events args.
2330   Prevent snapshots of mirrors.
2331   Add DISTCLEAN_TARGETS to make template for configure.h.
2332   More fixes to error paths.
2333   Fix lvcreate corelog validation.
2334   Add --config for overriding most config file settings from cmdline.
2335   Quote arguments when printing command line.
2336   Remove linefeed from 'initialising logging' message.
2337   Add 'Completed' debug message.
2338   Don't attempt library exit after reloading config files.
2339   Always compile with libdevmapper, even if device-mapper is disabled.
2340
2341 Version 2.02.06 - 12th May 2006
2342 ===============================
2343   Propagate --monitor around cluster.
2344   Add --monitor to vgcreate and lvcreate to control dmeventd registration.
2345   Filter LCK_NONBLOCK in clvmd lock_vg.
2346   Add --nosync to lvcreate with LV flag NOTSYNCED.
2347   Use mirror's uuid for a core log.
2348   Add mirror log fault-handling policy.
2349   Improve mirror warning messages and tidy dmeventd syslog output.
2350   Propagate nosync flag around cluster.
2351   Allow vgreduce to handle mirror log failures.
2352   Add --corelog to lvcreate and lvconvert.
2353   Create a log header for replacement in-sync mirror log.
2354   Use set_lv() and dev_set() to wipe sections of devices.
2355   Add mirror_in_sync() flag to avoid unnecessary resync on activation.
2356   Add mirror_library description to example.conf.
2357   Fix uuid_from_num() buffer overrun.
2358   Make SIZE_SHORT the default for display_size().
2359   Fix some memory leaks in error paths found by coverity.
2360   Use C99 struct initialisers.
2361   Move DEFS into configure.h.
2362   Clean-ups to remove miscellaneous compiler warnings.
2363   Improve stripe size validation.
2364   Increase maximum stripe size limit to physical extent size for lvm2 metadata.
2365   Fix activation code to check for pre-existing mirror logs.
2366   Tighten region size validation.
2367   Ignore empty strings in config files.
2368   Require non-zero regionsize and document parameter on lvcreate man page.
2369   Invalidate cache if composition of VG changed externally.
2370
2371 Version 2.02.05 - 21st April 2006
2372 =================================
2373   Fix vgid string termination in recent cache code.
2374
2375 Version 2.02.04 - 19th April 2006
2376 =================================
2377   Check for libsepol.
2378   Add some cflow & scope support.
2379   Separate out DEFS from CFLAGS.
2380   Remove inlines and use unique function names.
2381
2382 Version 2.02.03 - 14th April 2006
2383 =================================
2384   vgrename accepts vgid and exported VG.
2385   Add --partial to pvs.
2386   When choosing between identically-named VGs, also consider creation_host.
2387   Provide total log suppression with 2.
2388   Fix vgexport/vgimport to set/reset PV exported flag so pv_attr is correct.
2389   Add vgid to struct physical_volume and pass with vg_name to some functions.
2390   If two or more VGs are found with the same name, use one that is not exported.
2391   Whenever vgname is captured, also capture vgid and whether exported.
2392   Remove an incorrect unlock_vg() from process_each_lv().
2393   Update extent size information in vgchange and vgcreate man pages.
2394   Introduce origin_from_cow() and lv_is_visible().
2395   pvremove without -f now fails if there's no PV label.
2396   Support lvconvert -s.
2397   Suppress locking library load failure message if --ignorelockingfailure.
2398   Propagate partial mode around cluster.
2399   Fix archive file expiration.
2400   Fix dmeventd build.
2401   clvmd now uses libcman rather than cman ioctls.
2402   clvmd will allow new cman to shutdown on request.
2403
2404 Version 2.02.02 - 7th February 2006
2405 ===================================
2406   Add %.so: %.a make template rule.
2407   Switchover library building to use LIB_SUFFIX.
2408   Only do lockfs filesystem sync when suspending snapshots.
2409   Always print warning if activation is disabled.
2410   vgreduce removes mirror images.
2411   Add --mirrorsonly to vgreduce.
2412   vgreduce replaces active LVs with error segment before removing them.
2413   Set block_on_error parameter if available.
2414   Add target_version.
2415   Add details to format1 'Invalid LV in extent map' error message.
2416   Fix lvscan snapshot full display.
2417   Bring lvdisplay man page example into line.
2418   Add mirror dmeventd library.
2419   Add some activation logic to remove_mirror_images().
2420   lvconvert can remove specified PVs from a mirror.
2421   lvconvert turns an existing LV into a mirror.
2422   Allow signed mirrors arguments.
2423   Move create_mirror_log() into toollib.
2424   Determine parallel PVs to avoid with ALLOC_NORMAL allocation.
2425   Fix lv_empty.
2426
2427 Version 2.02.01 - 23rd November 2005
2428 ====================================
2429   Fix lvdisplay cmdline to accept snapshots.
2430   Fix open RO->RW promotion.
2431   Fix missing vg_revert in lvcreate error path.
2432
2433 Version 2.02.00 - 10th November 2005
2434 ====================================
2435   Extend allocation areas to avoid overflow with contiguous with other PVs.
2436   Stop lvcreate attempting to wipe zero or error segments.
2437   Added new lvs table attributes.
2438   Separated out activation preload.
2439   Moved activation functions into libdevmapper.
2440   Fixed build_dm_name.
2441   Add return macros.
2442   Added xen xvd devices.
2443   Clear up precommitted metadata better.
2444   A pvresize implementation.
2445   Fix contiguous allocation when there are no preceding segments.
2446   Add mirror_seg pointer to lv_segment struct.
2447   Only keep a device open if it's known to belong to a locked VG.
2448   Fix lvdisplay to show all mirror destinations.
2449   Replacement suspend code using libdevmapper dependency tree.
2450   Add DEFS to make.tmpl.
2451   Use dm_is_dm_major instead of local copy.
2452   Allow mapped devices to be used as PVs.
2453   Move set_selinux_context into libdevmapper.
2454   Fix automatic text metadata buffer expansion (using macro).
2455   Cache formatted text metadata buffer between metadata area writes.
2456   Add pe_start field to pvs.
2457   Add 'LVM-' prefix to uuids.
2458   Split lv_segment_area from lv_segment to permit extension.
2459   Replacement deactivation code using libdevmapper dependency tree.
2460   Simplify dev_manager_info().
2461   Attempt to load missing targets using modprobe.
2462   Add -a to lvscan.
2463   Move mknodes into libdevmapper.
2464   Move bitset, hash, pool and dbg_malloc into libdevmapper.
2465
2466 Version 2.01.15 - 16th October 2005
2467 ===================================
2468   Refuse to run pvcreate/pvremove on devices we can't open exclusively.
2469   Use ORPHAN lock definition throughout.
2470   Validate chunksize in lvcreate.
2471   Reduce chunksize limit to 512k.
2472   Fix chunksize field in reports.
2473   Don't hide snapshots from default 'lvs' output.
2474   Add is_dm_major() for use in duplicate device detection in lvmcache_add().
2475   Really switch device number in lvmcache when it says it is doing so.
2476   Option for bitset memory allocation using malloc as well as pool.
2477   Don't assume exactly two mirrors when parsing mirror status.
2478   Suppress fsync() error message on filesystems that don't support it.
2479   Fix yes_no_prompt() error handling.
2480   Add lvm.conf comment warning against multiple filter lines.
2481   Tidy lvmconf.sh.
2482   Add format1 dev_write debug messages.
2483   Add clustered VG attribute to report.
2484   Move lvconvert parameters into struct lvconvert_params.
2485   Add clustered VG flag to LV lock requests.
2486   Change LV locking macros to take lv instead of lvid.
2487   Prepend 'cluster' activation parameter to mirror log when appropriate.
2488   Pass exclusive flag to lv_activate and on to target activation code.
2489   Prevent snapshot creation in a clustered VG for now.
2490   Factor out adjusted_mirror_region_size() and generate_log_name_format().
2491   Move compose_log_line() into mirror directory.
2492   Factor out _get_library_path().
2493   Don't kill idling clvmd threads.
2494   clvmd no longer takes out locks for non-clustered LVs.
2495   Recognise ATA over Ethernet (aoe) devices.
2496
2497 Version 2.01.14 - 4th August 2005
2498 =================================
2499   Fix lvconvert PV parameter in help string.
2500   Prevent snapshots getting activated in a clustered VG.
2501   Separate out _build_dev_string.
2502   Move zero_lv to toollib.
2503   Fix pool format handler to work with pv segment code.
2504
2505 Version 2.01.13 - 13th July 2005
2506 ================================
2507   Fix pvmove segment splitting.
2508   Abstract vg_validate.
2509   Only make one attempt at contiguous allocation.
2510   Fix lvm1 format metadata read.
2511   Fix lvm1 format non-mirror lvcreate.
2512
2513 Version 2.01.12 - 14th June 2005
2514 ================================
2515   Various allocation-related pvmove fixes.
2516   Log an error if clvmd can't resolve a host name got from CCS.
2517   Fix potential spin loop in clvmd.
2518
2519 Version 2.01.11 - 13th June 2005
2520 ================================
2521   Added lvmconf.sh.
2522   Use matchpathcon mode parameter.
2523   Don't defer closing dead FDs in clvmd.
2524   Remove hard-coded 64k text metadata writing restriction.
2525   Make VG name restrictions consistent.
2526   Introduce lvconvert.  So far only removes mirror images.
2527   Allow mirror images to be resized.
2528   Allow mirror images to have more than one segment.
2529   Centralise restrictions on LV names.
2530   Always insert an intermediate layer for mirrors.
2531   Suppress hidden LVs from reports unless --all is given.
2532   Use square brackets for hidden LVs in reports.
2533   Allow the creation of mirrors with contiguous extents.
2534   Always perform sanity checks against metadata before committing it to disk.
2535   Split lv_extend into two steps: choosing extents + allocation to LV(s).
2536   Add mirror log region size to metadata.
2537   Use list_iterate_items throughout and add list*back macros.
2538   Introduce seg_ macros to access areas.
2539   Add segtype_is_ macros.
2540   Support tiny metadata areas for pool conversions.
2541   Mirror activation handles disk log as well as core.
2542   Activation code recognises mirror log dependency.
2543   Add mirror_log and regionsize fields to report.
2544   Fix non-orphan pvchange -u.
2545   Fix vgmerge to handle duplicate LVIDs.
2546   Move archiver code from tools into library.
2547   vgscan/change/display/vgs automatically create metadata backups if needed.
2548   Merge cloned allocation functions.
2549   Fix contiguous allocation policy with linear.
2550   Cope with missing format1 PVs again.
2551   Remove lists of free PV segments.
2552   Simplify pv_maps code and remove slow bitset algorithm.
2553   Red-Hat-ify the clvmd rhel4 initscript.
2554   %Zu->%zu
2555   Fix loopfiles alias alloc & mem debugging.
2556   Un-inline dbg_strdup.
2557   lv_reduce tidying.
2558   Remove some unnecessary parameters.
2559   Introduce seg_is macros.
2560
2561 Version 2.01.10 - 3rd May 2005
2562 ==============================
2563   Don't create backup and archive dirs till needed.
2564   Reinstate full PV size when removing from VG.
2565   Support loopfiles for testing.
2566   Tidy lv_segment interface.
2567   pv_segment support.
2568   vgchange --physicalextentsize
2569   Internal snapshot restructuring.
2570   Remove unused internal non-persistent snapshot option.
2571   Allow offline extension of snapshot volumes.
2572   Move from 2-step to 3-step on-disk metadata commit.
2573   Scan ramdisks too and allow non-O_DIRECT fallback.
2574   Annotate, tidy and extend list.h.
2575   Alignment tidying.
2576   Make clvmd work around some "bugs" in gulm's node state notifications.
2577   Tidy clvmd's SIGHUP handler
2578
2579 Version 2.01.09 - 4th April 2005
2580 ================================
2581   Add --ignorelockingfailure to vgmknodes.
2582   clvmd: Don't allow user operations to start until the lvm thread is fully up.
2583   clvmd-gulm: set KEEPALIVE on sockets.
2584
2585 Version 2.01.08 - 22nd March 2005
2586 =================================
2587   Add clustered attribute so vgchange can identify clustered VGs w/o locking.
2588   Improve detection of external changes affecting internal cache.
2589   Add 'already in device cache' debug message.
2590   Add -a to pvdisplay -C.
2591   Avoid rmdir opendir error messsages when dir was already removed.
2592   Tighten signal handlers.
2593   Avoid some compiler warnings.
2594   Additional rename failure error message.
2595   read/write may be macros.
2596   clvmd: don't take out lvm thread lock at startup, it only protects jobs list.
2597
2598 Version 2.01.07 - 8th March 2005
2599 ================================
2600   Cope with new devices appearing by rescanning /dev if a uuid can't be found.
2601   Remove DESTDIR from LVM_SHARED_PATH.
2602   clvmd fixes: make FDs close-on-exec
2603                gulm unlocks VG & orphan locks at startup in case they are stale
2604                gulm now unlocks VG & orphan locks if client dies.
2605
2606 Version 2.01.06 - 1st March 2005
2607 ================================
2608   Suppress 'open failed' error messages during scanning.
2609   Option to suppress warnings of file descriptors left open.
2610   Fix default value of metadatacopies in documentation (2->1).
2611   Fix clvmd-gulm locking.
2612   ./configure --enable-debug now enables debugging code in clvmd.
2613   Fix clvmd-gulm node up/down code so it actually works.
2614   clvmd-gulm now releases locks when shut down.
2615
2616 Version 2.01.05 - 18th February 2005
2617 ====================================
2618   Static binary invokes dynamic binary if appropriate.
2619   Make clvmd config check a little more tolerant.
2620   gulm clvmd can now cope with >1 message arriving in a TCP message.
2621
2622 Version 2.01.04 - 9th February 2005
2623 ===================================
2624   Add fixed offset to imported pool minor numbers.
2625   Update binary pathnames in clvmd_init_rhel4.
2626   lvm2cmd.so should skip the check for open fds.
2627   Remove unused -f from pvmove.
2628   Gulm clvmd doesn't report "connection refused" errors.
2629   clvmd does a basic config file sanity check at startup.
2630   Fix potential thread shutdown race in clvmd.
2631
2632 Version 2.01.03 - 1st February 2005
2633 ===================================
2634   More 64-bit display/report fixes.
2635   More informative startup mesg if can't create /etc/lvm.
2636   Fix snapshot device size bug (since 2.01.01).
2637   clvmd announces startup and cluster connection in syslog.
2638   Gulm clvmd doesn't hang trying to talk to a rebooted node.
2639   Gulm clvmd doesn't print cman error on startup.
2640
2641 Version 2.01.02 - 21st January 2005
2642 ===================================
2643   Update clvmd_init_rhel4: use lvm.static and don't load dlm.
2644   Fix some size_t printing.
2645   Fix 64 bit xlate consts.
2646   Split out pool sptype_names to avoid unused const.
2647   Always fail if random id generation fails.
2648   Recognise gnbd devices.
2649   Fix clvmd startup bug introduced in cman/gulm amalgamation.
2650   Improve reporting of node-specific locking errors.
2651
2652 Version 2.01.01 - 19th January 2005
2653 ===================================
2654   Fix clvmd lv_info_by_lvid open_count.
2655   Store snapshot and origin sizes separately.
2656   Update vgcreate man page.
2657
2658 Version 2.01.00 - 17th January 2005
2659 ===================================
2660   Fix vgscan metadata auto-correction.
2661   Only ask libdevmapper for open_count when we need it.
2662   Adjust RHEL4 clvmd init script priority.
2663   Enable building of CMAN & GULM versions of clvmd into a single binary
2664
2665 Version 2.00.33 - 7th January 2005
2666 ==================================
2667   pvcreate wipes first 4 sectors unless given --zero n.
2668   gulm clvmd now uses new ccsd key names.
2669   gulm clvmd now doesn't ignore the first node in cluster.conf
2670   Improve clvmd failure message if it's already running.
2671   Allow user to kill clvmd during initialisation.
2672   Fix off-by-one error in cluster_locking that could cause read hangs.
2673
2674 Version 2.00.32 - 22nd December 2004
2675 ====================================
2676   Drop static/dl restriction for now.
2677   Fix an error fprintf.
2678   Fix vgdisplay -s. Breaks (undocumented) lvs/pvs/vgs -s instead for now.
2679   Fix device reference counting on re-opens.
2680   Ignore sysfs symlinks when DT_UNKNOWN.
2681   Add clvmd init script for RHEL4.
2682   Skip devices that are too small to be PVs.
2683   Fix pvchange -x segfault with lvm2-format orphan.
2684   Cope with empty msdos partition tables.
2685   Add CONTRIBUTORS file.
2686
2687 Version 2.00.31 - 12th December 2004
2688 ====================================
2689   Reopen RO file descriptors RW if necessary.
2690
2691 Version 2.00.30 - 10th December 2004
2692 ====================================
2693   Additional device-handling debug messages.
2694   Additional verbosity level -vvvv includes line numbers and backtraces.
2695   Verbose messages now go to stderr not stdout.
2696   Close any stray file descriptors before starting.
2697   Refine partitionable checks for certain device types.
2698   Allow devices/types to override built-ins.
2699   Fix lvreduce man page .i->.I
2700   Fix vgsplit man page title.
2701   Fix clvmd man makefile.
2702   Extend dev_open logging.
2703   Make clvmd_fix_conf.sh UNDOable.
2704
2705 Version 2.00.29 - 27th November 2004
2706 ====================================
2707   xlate compilation fix.
2708
2709 Version 2.00.28 - 27th November 2004
2710 ====================================
2711   Fix partition table & md signature detection.
2712   Minor configure/makefile tidy.
2713   Export version.h from tools for clvmd.
2714
2715 Version 2.00.27 - 24th November 2004
2716 ====================================
2717   Trap large memory allocation requests.
2718   Fix to partition table detection code.
2719   Improve filter debug mesgs.
2720   Make clvmd_fix_conf.sh UNDOable
2721
2722 Version 2.00.26 - 23rd November 2004
2723 ====================================
2724   Improve pool debugging stats.
2725   Detect partition table signature.
2726   pvcreate wipes md superblocks. (With --uuid or --restorefile it prompts.)
2727   Separate out md superblock detection code.
2728   Prevent snapshot origin resizing.
2729   Improve a vgremove error message.
2730   Update some man pages.
2731   Allow y/n with -ae args (exclusive activation).
2732   Fixes to lvcreate vgname parsing.
2733   Fix dm_name string size calculation.
2734   Improve clvmd error reporting during startup.
2735   Make clvmd cope with large gaps in node numbers IDs.
2736   Make clvmd initialisation cope better with debugging output.
2737   Tidy clvmd socket callbacks so all work happens outside main loop.
2738   clvmd -V now displays lvm version too.
2739   Add optional gulm build for clvmd
2740
2741 Version 2.00.25 - 29th September 2004
2742 =====================================
2743   Fix return code from rm_link for vgmknodes.
2744   Make clvmd LV hash table thread-safe.
2745   Fix clvmd locking so it will lock out multiple users on the same node.
2746   Fix clvmd VG locking to it can cope with multiple VG locks.
2747   Remove spurious trailing dot in lvreduce man page.
2748   Fix vgremove locking.
2749
2750 Version 2.00.24 - 16th September 2004
2751 =====================================
2752   Fix pool_empty so it really does empty the memory pool.
2753   Rename old segtypes files to segtype.
2754   Some fixes to memory debugging code.
2755   Exclude internal commands formats & segtypes from install.
2756
2757 Version 2.00.23 - 15th September 2004
2758 =====================================
2759   Export dm name build & split functions.
2760   Use O_NOATIME on devices if available.
2761   Write log message when each segtype/format gets initialised.
2762   New commands 'segtypes' and 'formats'.
2763   Suppress pvmove abort message in test mode.
2764   Improve pvcreate/remove device not found error message.
2765   Allow pvmove to move data within the same PV.
2766   Describe how pvmove works on man page.
2767   Test for incompatible format/segtype combinations in lv_extend.
2768   Fix lvchange example on man page.
2769
2770 Version 2.00.22 - 3rd September 2004
2771 ====================================
2772   Fix /dev/vgname perms.
2773   Restructure xlate.h.
2774   Add clvmd man page.
2775
2776 Version 2.00.21 - 19th August 2004
2777 ==================================
2778   Update cnxman-socket.h from cman.
2779   Recognise iseries/vd devices.
2780   Use 'make install_cluster' to install cluster extensions only.
2781   Cope with DT_UNKNOWN in sysfs.
2782   Fix extents_moved metadata size comment.
2783   Remove duplicate line in pvremove help text.
2784   Support variable mirror region size.
2785   Support PE ranges in pvmove source PV.
2786   Fixes to as-yet-unused LV segment splitting code.
2787   Change alloc_areas to pe_ranges and allow suppression of availability checks.
2788   Add dev_size column to pvs.
2789   Add report columns for in-kernel device number.
2790
2791 Version 2.00.20 - 3 July 2004
2792 =============================
2793   More autoconf fixes.
2794   Fix device number handling for 2.6 kernels.
2795
2796 Version 2.00.19 - 29 June 2004
2797 ==============================
2798   Reduce severity of setlocale failure message.
2799   Recognise argv[0] "initrd-lvm" (pld-linux).
2800   Make -O2 configurable.
2801   Added --disable-selinux to configure script.
2802   LD_FLAGS->LDFLAGS & LD_DEPS->LDDEPS in configure script.
2803   Add init_debug to clvmd.
2804
2805 Version 2.00.18 - 24 June 2004
2806 ==============================
2807   Fix vgchange activation.
2808   Add cluster support.
2809
2810 Version 2.00.17 - 20 June 2004
2811 ==============================
2812   configure --enable-fsadm to try out fsadm.  fsadm is not tested yet.
2813   Display all filtered devices, not just PVs, with pvs -a.
2814   Fix sync_dir() when no / in filename
2815   vgcfgbackup -f accepts template with %s for VG name.
2816   Extend hash functions to handle non-null-terminated data.
2817   Add local activation support.
2818   Tidy relative paths in makefile includes.
2819   fsadm support for fsck and resizing - needs testing.
2820   Add read-only GFS pool support.
2821   Add lvm2create_initrd script from http://poochiereds.net/svn/lvm2/
2822   Fix rounding of large diplayed sizes.
2823   Suppress decimal point when using units of sectors/bytes.
2824   Additional kernel target checks before pvmove & snapshot creation.
2825   Add i2o_block.
2826
2827 Version 2.00.16 - 24 May 2004
2828 =============================
2829   Set area_count within alloc_lv_segment.
2830   Remove error labels from lvresize.
2831   Fix a pvs error path.
2832   xxchange -ae for exclusive activation.
2833   Don't return non-zero status if there aren't any volume groups.
2834   Add --alloc argument to tools.
2835   Rename allocation policies to contiguous, normal, anywhere, inherit.
2836   nextfree becomes normal; anywhere isn't implemented yet.
2837   LV inherits allocation policy from VG. Defaults: LV - inherit; VG - normal
2838   Additional status character added to vgs to indicate allocation policy.
2839   Add reset_fn to external_locking.
2840   Ensure presence of virtual targets before attempting activating.
2841   Attempt to fix resizing of snapshot origins.
2842   Restructure lvresize, bringing it closer to lvcreate.
2843   A quick sanity check on vg_disk struct when read in.  More checks needed.
2844   Only include visible LVs in active/open counts.
2845   Add virtual segment types, zero and error.  A large sparse device can be
2846 constructed as a writeable snapshot of a large zero segment.
2847   Add --type to lvcreate/resize.
2848   Push lv_create & alloc policy up to tool level.
2849   Fix pvdisplay return code.
2850   Detect invalid LV names in arg lists.
2851   Reporting uses line-at-a-time output.
2852   lvm2 format sets unlimited_vols format flag.
2853   Internal-only metadata flag support.
2854   Basic checking for presence of device-mapper targets.
2855   Separate out polldaemon.
2856   Revise internal locking semantics.
2857   Move find_pv_by_name to library.
2858   Rename move->copy.
2859   Add devices to segments report.
2860   Begin separating out segment code. There's a lot of change here.
2861   Compress any (obsolete) long LVM1 pvids encountered.
2862   Support for tagged config files.
2863   Don't abort operations if selinux present but disabled.
2864   Fix typo in configure which left HAVE_LIBDL unset.
2865
2866 Version 2.00.15 - 19 Apr 2004
2867 =============================
2868   configure --with-owner= --with-group= to avoid -o and -g args to 'install'
2869
2870 Version 2.00.14 - 16 Apr 2004
2871 =============================
2872   Use 64-bit file functions by default.
2873
2874 Version 2.00.13 - 16 Apr 2004
2875 =============================
2876   Set devices/md_component_detection = 1 to ignore devices containing md
2877   superblocks. [Luca Berra]
2878   Ignore error setting selinux file context if fs doesn't support it.
2879
2880 Version 2.00.12 - 14 Apr 2004
2881 =============================
2882   Install a default lvm.conf into /etc/lvm if there isn't one already.
2883   Allow different installation dir for lvm.static (configure --staticdir=)
2884   Fix inverted selinux error check.
2885   Recognise power2 in /proc/devices.
2886   Fix counting in lvs_in_vg_opened. [It ignored devices open more than once.]
2887
2888 Version 2.00.11 - 8 Apr 2004
2889 ============================
2890   Set fallback_to_lvm1 in lvm.conf (or configure --enable-lvm1_fallback)
2891   to run lvm1 binaries if running a 2.4 kernel without device-mapper.
2892
2893 Version 2.00.10 - 7 Apr 2004
2894 ============================
2895   More fixes for static build.
2896   Add basic selinux support.
2897   Fix sysfs detection.
2898
2899 Version 2.00.09 - 31 Mar 2004
2900 =============================
2901   Update copyright notices for Red Hat.
2902   Fix vgmknodes to remove dud /dev/mapper entries. (libdevmapper update reqd).
2903   Add LVM1-style colon output to vgdisplay.
2904   lvchange --refresh to reload active LVs.
2905   Add string display to memory leak dump.
2906   Add locking flags & memlock option.
2907   Add list_versions to library.
2908   Ignore open hidden LVs when checking if deactivation is OK.
2909   Suppress move percentage when device inactive.
2910   Add lv_info_by_lvid.
2911   Various tidy-ups to the build process.
2912   Rebaseline internal verbose level.
2913   Add --nolocking option for read operations if locking is failing.
2914   Add option to compile into a library.
2915   When compiled without libdevmapper, only print warning message once.
2916   Fix lvreduce PV extent calculations.
2917   Fix DESTDIR to work with configure path overrides.
2918   Always use / as config file separator & rename internal config file variables.
2919   Add support for tagging PV/VG/LVs and hosts.
2920   Fix rare bug in recognition of long cmdline argument forms.
2921   Add basic internationalisation infrastructure.
2922   Don't recurse symlinked dirs such as /dev/fd on 2.6 kernels.
2923   Update autoconf files.
2924   Add sysfs block device filtering for 2.6 kernels.
2925   Update refs for move to sources.redhat.com.
2926
2927 Friday 14th November 2003
2928 =========================
2929 Some bug fixes & minor enhancements, including:
2930   Backwards compatibility with LVM1 metadata improved.
2931   Missing man pages written.
2932   Tool error codes made more consistent.
2933   vgmknodes written.
2934   O_DIRECT can be turned off if it doesn't work in your kernel.
2935   dumpconfig to display the active configuration file
2936
2937 You need to update libdevmapper before using 'vgmknodes' or 'vgscan --mknodes'.
2938 If your root filesystem is on an LV, you should run one of those two
2939 commands to fix up the special files in /dev in your real root filesystem
2940 after finishing with your initrd.  Also, remember you can use
2941 'vgchange --ignorelockingfailure' on your initrd if the tool fails because
2942 it can't write a lock file to a read-only filesystem.
2943
2944 Wednesday 30th April 2003
2945 =========================
2946 A pvmove implementation is now available for the new metadata format.
2947
2948 When running a command that allocates space (e.g. lvcreate), you can now
2949 restrict not only which disk(s) may be used but also the Physical Extents
2950 on those disks.  e.g. lvcreate -L 10 vg1 /dev/hda6:1000-2000:3000-4000
2951
2952
2953 Monday 18th November 2002
2954 ========================
2955
2956 The new format of LVM metadata is ready for you to test!
2957   We expect it to be more efficient and more robust than the original format.
2958   It's more compact and supports transactional changes and replication.
2959   Should things go wrong on a system, it's human-readable (and editable).
2960
2961 Please report any problems you find to the mailing list,
2962 linux-lvm@sistina.com.  The software has NOT yet been thoroughly
2963 tested and so quite possibly there'll still be some bugs in it.
2964 Be aware of the disclaimer in the COPYING file.
2965
2966 While testing, we recommend turning logging on in the configuration file
2967 to provide us with diagnostic information:
2968   log {
2969         file="/tmp/lvm2.log"
2970         level=7
2971         activation=1
2972   }
2973
2974 You should schedule regular backups of your configuration file and
2975 metadata backups and archives (normally kept under /etc/lvm).
2976
2977 Please read docs/example.conf and "man lvm.conf" to find out more about
2978 the configuration file.
2979
2980 To convert an existing volume group called vg1 to the new format using
2981 the default settings, use "vgconvert -M2 vg1".  See "man vgconvert".
2982
2983 -M (or --metadatatype in its long form) is a new flag to indicate which
2984 format of metadata the command should use for anything it creates.
2985 Currently, the valid types are "lvm1" and "lvm2" and they can be
2986 abbreviated to "1" and "2" respectively.  The default value for this
2987 flag can be changed in the global section in the config file.
2988
2989 Backwards-compatible support for the original LVM1 metadata format is
2990 maintained, but it can be moved into a shared library or removed
2991 completely with configure's --with-lvm1 option.
2992
2993 Under LVM2, the basic unit of metadata is the volume group.  Different
2994 volume groups can use different formats of metadata - vg1 could use
2995 the original LVM1 format while vg2 used the new format - but you can't
2996 mix formats within a volume group.  So to add a PV to an LVM2-format
2997 volume group you must run "pvcreate -M2" on it, followed by "vgextend".
2998
2999 With LVM2-format metadata, lvextend will let you specify striping
3000 parameters.  So an LV could consist of two or more "segments" - the
3001 first segment could have 3 stripes while the second segment has just 2.
3002
3003 LVM2 maintains a backup of the current metadata for each volume group
3004 in /etc/lvm/backup, and puts copies of previous versions in
3005 /etc/lvm/archive.  "vgcfgbackup" and "vgcfgrestore" can be used to
3006 create and restore from these files.  If you fully understand what
3007 you're doing, metadata can be changed by editing a copy of a current
3008 backup file and using vgcfgrestore to reload it.
3009
3010 Please read the pvcreate man page for more information on the new
3011 format for metadata.
3012
3013 All tools that can change things have a --test flag which can be used
3014 to check the effect  of a set of cmdline args without really making the
3015 changes.
3016
3017
3018 What's not finished?
3019 ====================
3020 The internal cache.  If you turn on debugging output you'll see lots of
3021 repeated messages, many of which will eventually get optimised out.
3022
3023 --test sometimes causes a command to fail (e.g. vgconvert --test) even
3024 though the real command would work: again, fixing this is waiting for
3025 the work on the cache.
3026
3027 Several of the tools do not yet contain the logic to handle full
3028 recovery: combinations of pvcreate and vgcfgrestore may sometimes be
3029 needed to restore metadata if a tool gets interrupted or crashes or
3030 finds something unexpected.  This applies particularly to tools that
3031 work on more than one volume group at once (e.g. vgsplit).
3032
3033 Display output.  Some metadata information cannot yet be displayed.
3034
3035 Recovery tools to salvage "lost" metadata directly from the disks:
3036 but we hope the new format will mean such tools are hardly ever needed!