WHATS_NEW

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