WHATS_NEW

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