WHATS_NEW

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