WHATS_NEW

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