WHATS_NEW

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