WHATS_NEW

   1 Version 2.02.97 -
   2 ===============================
   3   Fix segfault when attempting to replace RAID 4/5/6 device (2.02.97).
   4   Fix dumpconfig <node> to print only <node> without its siblings (2.02.89).
   5   Do not issue "Failed to handle a client connection" error if lvmetad killed.
   6   Support changing of discard and zeroing for thin pool.
   7   Report used discard for thin pool and volume.
   8   Add support for controlling discard behavior of thin pool.
   9   Detect features for new 1.1 thin pool target.
  10   Count percentage of completeness upwards when merging a snapshot volume.
  11   Skip activation when using vg/lvchange --sysinit -a ay and lvmetad is active.
  12   Fix extending RAID 4/5/6 logical volumes
  13   Fix test for PV with unknown VG in process_each_pv to ignore ignored mdas.
  14   Update man pages with --activate ay option and auto_activation_volume_list.
  15   Fix _alloc_parallel_area to avoid picking already-full areas for raid devices.
  16   Use vgchange -aay instead of vgchange -ay in clmvd init script.
  17   Add activation/auto_activation_volume_list to lvm.conf.
  18   Add --activate ay to lvcreate, lvchange, pvscan and vgchange.
  19   Add support for volume autoactivation using lvmetad.
  20   Add --activate synonym for --available arg and prefer --activate.
  21   Never issue discards when LV extents are being reconfigured, not deleted.
  22   Allow release_lv_segment_area to fail as functions it calls can fail.
  23   Open device read-only to obtain readahead value.
  24   Fix lvconvert error path NULL pointer dereference.
  25   Check for create_instance() fail in pvscan_lvmetad_single().
  26   Use 64bit math for reserved memory and stack.
  27   Add tests for kernel_send() errors in cmirrod.
  28   Print clean_bits in pull_state, fix cut&paste typo in cmirrord.
  29   Add tests for errors from closedir(), close() in cmirrord.
  30   Fix missing sync of filesystem when creating thin volume snapshot.
  31
  32 Version 2.02.96 - 8th June 2012
  33 ===============================
  34   Upstream source repo now fedorahosted.org git not sources.redhat.com CVS.
  35   Fix error paths for regex filter initialization.
  36   Re-enable partial activation of non-thin LVs until it can be fixed. (2.02.90)
  37   Fix alloc cling to cling to PVs already found with contiguous policy.
  38   Fix cling policy not to behave like normal policy if no previous LV seg.
  39   Fix allocation loop not to use later policies when --alloc cling without tags.
  40   Append _TO_LVSEG to names of internal A_CONTIGUOUS and A_CLING flags.
  41   Add missing pkg init --with-systemdsystemunitdir in configure.in (2.02.92).
  42   Fix division by zero if PV with zero PE count is used during vgcfgrestore.
  43   Add initial support for thin pool lvconvert.
  44   Fix lvrename for thin volumes (regression in for_each_sub_lv). (2.02.89)
  45   Fix up-convert when mirror activation is controlled by volume_list and tags.
  46   Warn of deadlock risk when using snapshots of mirror segment type.
  47   Fix bug in cmirror that caused incorrect status info to print on some nodes.
  48   Remove statement that snapshots cannot be tagged from lvm man page.
  49   Disallow changing cluster attribute of VG while RAID LVs are active.
  50   Fix lvconvert error message for non-mergeable volumes.
  51   Allow subset of failed devices to be replaced in RAID LVs.
  52   Prevent resume from creating error devices that already exist from suspend.
  53   Improve clmvd singlenode locking for better testing.
  54   Update and correct lvs man page with supported column names.
  55   Handle replacement of an active device that goes missing with an error device.
  56   Change change raid1 segtype always to request a flush when suspending.
  57   Add udev info and context to lvmdump.
  58   Add lvmetad man page.
  59   Fix RAID device replacement code so that it works under snapshot.
  60   Fix inability to split RAID1 image while specifying a particular PV.
  61   Update man pages to give them all the same look&feel.
  62   Fix lvresize of thin pool for striped devices.
  63   For lvresize round upward when specifying number of extents.
  64   For lvcreate with %FREE support rounding downward stripe alignment.
  65   Change message severity to log_very_verbose for missing dev info in udev db.
  66   Fix lvconvert when specifying removal of a RAID device other than last one.
  67   Fix ability to handle failures in mirrored log in dmeventd plugin. (2.02.89)
  68   Fix unlocking volume group in vgreduce in error path.
  69   Cope when VG name is part of the supplied name in lvconvert --splitmirrors -n.
  70   Fix exclusive lvchange running from other node. (2.02.89)
  71   Add 'vgscan --cache' functionality for consistency with 'pvscan --cache'.
  72   Keep exclusive activation in pvmove if LV is already active.
  73   Disallow exclusive pvmove if some affected LVs are not exclusively activated.
  74   Remove unused and wrongly set cluster VG flag from clvmd lock query command.
  75   Fix pvmove for exclusively activated LV pvmove in clustered VG. (2.02.86)
  76   Always free hash table on update_pvid_to_vgid() in lvmetad.
  77   Update and fix monitoring of thin pool devices.
  78   Check hash insert success in lock_vg in clvmd.
  79   Check for buffer overwrite in get_cluster_type() in clvmd.
  80   Fix global/detect_internal_vg_cache_corruption config check.
  81   Update lcov Makefile target to support all dmeventd plugins.
  82   Fix initializiation of thin monitoring. (2.02.92)
  83   Cope with improperly formatted device numbers in /proc/devices. (2.02.91)
  84   Exit if LISTEN_PID environment variable incorrect in lvmetad systemd handover.
  85   Use pvscan --cache instead of vgscan in lvmetad scripts.
  86   Fix fsadm propagation of -e option.
  87   Fix fsadm parsing of /proc/mounts files (don't check for substrings).
  88   Fix fsadm usage of arguments with space.
  89   Fix arg_int_value alongside ARG_GROUPABLE --major/--minor for lvcreate/change.
  90   Fix name conflicts that prevent down-converting RAID1 when specifying a device
  91   Improve thin_check option passing and use configured path.
  92   Add --with-thin-check configure option for path to thin_check.
  93   Fix error message when pvmove LV activation fails with name already in use.
  94   Better structure layout for device_info in dev_subsystem_name().
  95   Change message severity for creation of VG over uninitialised devices.
  96   Fix error path for failed toolcontext creation.
  97   Detect lvm binary path in lvmetad udev rules.
  98   Don't unlink socket on lvmetad shutdown if instantiated from systemd.
  99   Restart lvmetad automatically from systemd if it exits from uncaught signal.
 100   Fix warn msg for thin pool chunk size and update man for chunksize. (2.02.89)
 101
 102 Version 2.02.95 - 6th March 2012
 103 ================================
 104   If unspecified, adjust thin pool metadata and chunk size to fit into 128MB.
 105   Print just warning on thin pool check callback path for failing check.
 106   Always use 64bit arithmetic with VG extent_size expression.
 107   Validate udev structures in _insert_udev_dir().
 108   Take repeatable --major --minor with pvscan --cache instead of major:minor.
 109   Scan all devices for lvmetad if 'pvscan --cache' used without device list.
 110   Populate lvmcache from lvmetad before displaying PVs in pvscan. (2.02.94)
 111   Suppress incorrect -n pvscan warning now always displayed. (2.02.94)
 112
 113 Version 2.02.94 - 3rd March 2012
 114 ================================
 115   Add support to execute thin_check with each de/active of thin pool.
 116   Fix automatic estimation of metadata device size for thin pool.
 117   Test for alloc fail from _alloc_pv_segment() in _extend_pv().
 118   Check for alloc fail from get_segtype_from_string() in _lvcreate_params().
 119   Add _rimage as reserved suffix to lvm.8 man page.
 120   Improve error logging from mpath filter.
 121   Check for allocation failure in hold_lock() in clvmd.
 122   Use set_lv() (wipe initial 4KiB) for non zeroed thin volume.
 123   Allow cluster mirrors to handle the absence of the checkpoint lib (libSaCkpt).
 124   Revert free of allocated segtype in init segment error path (2.02.89).
 125   Test dm_hash_insert() failures in filter-persistent.c and fid_add_mda().
 126   Ensure clvmd message is always NUL-terminated after read.
 127   Add some close() and dev_close() error path backtraces.
 128   Set stdin/stdout/stderr to /dev/null for polldaemon.
 129   Limit the max size of processed clvmd message to ~8KB.
 130   Do not send uninitialised bytes in cluster error reply messages.
 131   Use unsigned type for bitmask instead of enum type for lvm properties.
 132   Add missing cleanup of excl_uuid hash on some exit paths of clvmd.
 133   Check for existence of vg_name in _format1/_pool_vg_read().
 134   Fix missing break in _format_pvsegs (2.02.92).
 135   Test seg pointer for non-null it in raid_target_percent error path.
 136   Check for errors in _init_tags() during config loading.
 137   Always check result of _set_vg_name() in lvcreate.
 138   Drop unused call to uname() during clvmd initialization.
 139   Test allocation result in sysfs filter creation.
 140   Limit sscanf parameters with buffer size in clvmd get_initial_state().
 141   Use const lv pointer for lv_is_active...() functions.
 142   Use same signed numbers in _mirrored_transient_status().
 143   Support 'pvscan --cache' to update lvmetad state from specific PVs.
 144   Provide new metadata daemon for testing with configure --enable-lvmetad .
 145   Integrate client-side lvmetad into build.
 146
 147 Version 2.02.93 - 23rd February 2012
 148 ====================================
 149   Require number of stripes to be greater than parity devices in higher RAID.
 150   Fix allocation code to allow replacement of single RAID 4/5/6 device.
 151   Check all tags and LV names are in a valid form in vg_validate.
 152   Add tmpfiles.d style configuration for lvm2 lock and run directory.
 153   Add configure --with-tmpfilesdir for dir holding volatile-file configuration.
 154   Allow 'lvconvert --repair' to operate on RAID 4/5/6.
 155   Fix build_parallel_areas_from_lv to account correctly for raid parity devices.
 156   Print message when faulty raid devices have been replaced.
 157
 158 Version 2.02.92 - 20th February 2012
 159 ====================================
 160   Read dmeventd monitoring config settings for every lvm command.
 161   For thin devices, initialize monitoring only for thin pools not thin volumes.
 162   Make conversion from a synced 'mirror' to 'raid1' not cause a full resync.
 163   Properly test buffer for unit check in units_to_bytes().
 164   Add configure --with-systemdsystemunitdir.
 165   Add check for allocation failure in _build_matcher().
 166   Add check for rimage name allocation failure in _raid_add_images().
 167   Add check for mda_copy failure in _text_pv_setup().
 168   Add check for _mirrored_init_target failure.
 169   Add free_orphan_vg.
 170   Skip pv/vg_set_fid processing if the fid is same.
 171   Check for foreach loop errors in _vg_read_orphans() (2.02.91).
 172   Clean error paths for format instance creation (2.02.91).
 173   Release vg in error path of _format1_vg_read() instead of just free().
 174   Report allocation failure for allocation of PV structure.
 175   Add clvmd init dependency on dlm service when running with new corosync.
 176
 177 Version 2.02.91 - 12th February 2012
 178 ====================================
 179   Remove PV-based format instances (which are no longer needed).
 180   Link all orphan PVs directly to a per-format global orphan VG.
 181   Refactor lvmcache around an internal API.
 182   Stop processing lvextend if trying to extend a mirror that is being recovered.
 183   Add pool_below_threshold() function to check thin pool percent status.
 184   Fix test for snap percent for failing merge when removing LV.
 185   Switch int to void return for str_list_del().
 186   Fix error path handling in _build_desc().
 187   Add range test for device number in _scan_proc_dev().
 188   Use signed long for sysconf() call in cmirrord.
 189   Do not write in front of log buffer in print_log().
 190   Add boundary test for number of mirror devs and logs.
 191   Check that whole locking_dir fits _lock_dir buffer in init_file_locking().
 192   Use list functions for label_exit().
 193   Ensure strncpy() function always ends with '\0'.
 194   Set status in _fsadm_cmd() for error path.
 195   Add missing deps for lvm2api for rebuild when lvm-internal is changed.
 196   Fix resource leaks for failing allocation of formats (lvm1/2,pool).
 197   Release allocated resources in error path for composite_filter_create().
 198   Do not use lstat() results when failed in _rm_link().
 199   Remove a "waiting for another thread" log message from dmeventd plugins.
 200
 201 Version 2.02.90 - 1st February 2012
 202 ===================================
 203   sync_local_dev_names before (re)activating mirror log for initialisation.
 204   Disable partial activation for thin LVs and LVs with all missing segments.
 205   Do not print warning for pv_min_size between 512KB and 2MB.
 206   Clean up systemd unit ordering and requirements.
 207   Fix lcov reports when srcdir != builddir.
 208   Allow ALLOC_NORMAL to track reserved extents for log and data on same PV.
 209   Automatically detect whether corosync clvmd needs to use confdb or cmap.
 210   Fix data% report for thin volume used as origin for non-thin snapshot.
 211
 212 Version 2.02.89 - 26th January 2012
 213 ===================================
 214   Add missing check for uname result in clvmd TEST processing.
 215   Fix memleak in target_version() error path (unsupported LIST_VERSIONS).
 216   Limit data_alignment and data_alignment_offset to 32bit values.
 217   Check for correctness of uint64 dev_size value in format_text.
 218   Thin pools have segment fields thin_count, zero, transaction_id.
 219   Add data_percent and metadata_percent for thin pools to lvs -v.
 220   Add data_lv & metadata_lv fields to lvs for thin pools.
 221   Add data_percent & pool_lv fields to lvs for thin volumes.
 222   Rename origin_only parm to use_layer for lv_info and use with thin LVs.
 223   Add lv_thin_pool_transaction_id to read the transaction_id value.
 224   Use {suspend,resume}_origin_only when up-converting RAID, as mirrors do.
 225   Always add RAID metadata LVs to deptree (even when origin_only is set).
 226   Change exclusive LV activation logic to try local node before remote nodes.
 227   Add CLVMD_FLAG_REMOTE to skip processing on local node.
 228   Prompt if request is made to remove a snapshot whose "Merge failed".
 229   Allow removal of an invalid snapshot that was to be merged on next activation.
 230   Don't allow a user to merge an invalid snapshot.
 231   Use m and M lv_attr to indicate that a snapshot merge failed in lvs.
 232   Differentiate between snapshot status of "Invalid" and "Merge failed".
 233   Report snapshot usage percent of origin volume when a snapshot is merging.
 234   Require global/lvdisplay_shows_full_device_path for (bogus) lvm1-style paths.
 235   Do not report linear segtype for non-striped targets.
 236   Record creation host & time for each LV and report as lv_time & lv_host.
 237   Make error message hit when preallocated memlock memory exceeded clearer.
 238   Use R lv_attr to indicate read-only activation of non-read-only device in lvs.
 239   Show read-only activation override in lvdisplay & add 4 to perms in -c.
 240   Add activation/read_only_volume_list to override LV permission in metadata.
 241   Give priority to emcpower devices with duplicate PVIDs.
 242   Add check for error in _adjust_policy_params() (lvextend --use-policies).
 243   Round specified percentages upwards (%LV, %VG...) when resizing LVs.
 244   Use dmeventd_lvm2_command in dmeventd plugins snapshot, raid, mirror.
 245   Add helper dmeventd_lvm2_command() to libdevmapper-event-lvm2 library.
 246   Update documentation for dmeventd.
 247   Remove unnecessary stat before opening device in dev_open_flags.
 248   Reduce number of lstat calls when selecting device alias.
 249   Add _dev_init to initialize common struct device members.
 250   Always zalloc struct device during initialization.
 251   Fix missing thread list manipulation protection in dmeventd.
 252   Do not derefence lv pointer in _percent_run() function before NULL check.
 253   Allow empty strings for description and creation_host config fields.
 254   Issue deprecation warning when removing last lvm1-format snapshot.
 255   Reinstate support for snapshot removal with lvm1 format. (2.02.86)
 256   Add policy-based automated repair of RAID logical volumes.
 257   Don't allow two images to be split and tracked from a RAID LV at one time.
 258   Don't allow size change of RAID LV that is tracking changes for a split image.
 259   Don't allow size change of RAID sub-LVs independently.
 260   Don't allow name change of RAID LV that is tracking changes for a split image.
 261   Do not allow users to change the name of RAID sub-LVs independently.
 262   Do not allow users to change permissions on RAID sub-LVs.
 263   Allow lvconvert to replace specified devices in a RAID array.
 264   Add activation/use_linear_target enabled by default.
 265   Use gcc warning options only with .c to .o compilation.
 266   Move y/n prompts to stderr and repeat if response has both 'n' and 'y'.
 267   Replace the unit testing framework with CUnit (--enable-testing).
 268   Fix dmeventd snapshot monitoring when multiple extensions were involved.
 269   Don't ignore configure --mandir and --infodir.
 270   Drop pool memory allocated within lv_has_target_type().
 271   Reduce stack allocation of some PATH_MAX sized char buffers.
 272   Unlock memory before writing metadata.
 273   Add query before removing snapshots when inactive snapshot origin is removed.
 274   Allow changing availability state of snapshots.
 275   Skip non-virtual snapshots for availability change for lvchange with vg name.
 276   Skip adjusting mirror region size unless mirror or raid.
 277   Reorder prompt conditions for removal of active volumes.
 278   Avoid 'mda inconsistency' by properly registering UNLABELLED_PV flag.(2.02.86)
 279   Fix --enable-static_link unless using --enable-dmeventd / --enable-udev_sync.
 280   Move gentoo MAKEDEV to /sbin in lvm2create_initrd.
 281   Add filter to avoid scan of device if it is part of active multipath.
 282   Add missing default $LVM_VG_NAME usage for snapshots.
 283   Avoid extent_count overflow with lvextend.
 284   Add missing lvrename mirrored log recursion in for_each_sub_lv.
 285   Improve lv_extend stack reporting.
 286   Increase virtual segment size instead of creating multiple segment list.
 287   Add last_seg(lv) internal function.
 288   Support empty string for log/prefix.
 289   Disallow mirrored logs for cluster mirrors. (2.02.72)
 290   Don't print char type[8] as a plain string in pvck PV type.
 291   Use vg memory pool implicitly for vg read.
 292   Always use vg memory pool for allocated lv segment.
 293   Remove extra 4kB buffer allocated on stack in print_log().
 294   Make move_lv_segment non-static function and use dm_list function.
 295   Pass exclusive LV locks to all nodes in the cluster.
 296   Improve lvcreate chunksize man page description.
 297   Improve man page style for lvcreate & lvs.
 298   Avoid recursive calls to dmeventd in its LVM plugins.
 299   Log dev name now returned to kernel for registering during cmirror CTR.
 300   Fix lv_info open_count test for disabled verify_udev_operations. (2.02.86)
 301   Simplify code for lvm worker thread in clvmd.
 302   Use pthread_barrier to synchronize clvmd threads at startup.
 303   Limit clvmd's thread size to 128KiB and ignore activation/reserved_stack.
 304   Reduce default preallocated stack size to 64KiB.
 305   Add check for access through NULL pointer when refresh_filter() fails.
 306   Use pthread condition for SINGLENODE lock implementation.
 307   Improve backtrace reporting for some dev_manager_ functions.
 308   Change message severity to log_warn when symlink creation fails.
 309   Add ability to convert mirror segtype to RAID1 segtype.
 310   Add ability to convert from linear to RAID1.
 311   Add ability to extend mirrors with '--nosync' option.
 312   Fix splitmirror LV names to maintain consistent state in a cluster.
 313   Apply appropriate udev flags when suspending/resuming mirror sub-LVs.
 314   Fix vgsplit to handle mirrored logs.
 315   Clarify multi-name device filter pattern matching explanation in lvm.conf.
 316   Introduce revert_lv for better pvmove cleanup.
 317   Replace incomplete pvmove activation failure recovery code with a message.
 318   Abort if _finish_pvmove suspend_lvs fails instead of cleaning up incompletely.
 319   Change suspend_lvs to call vg_revert internally.
 320   Change vg_revert to void and remove superfluous calls after failed vg_commit.
 321   Use execvp for CLVMD restart to preserve environment settings.
 322   Restart CLVMD with same cluster manager.
 323   Fix log_error() usage in raid and unknown segtype initialisation.
 324   Improve testing Makefile.
 325   Fix install_ocf make target when srcdir != builddir. (2.02.80)
 326   Support env vars LVM_CLVMD_BINARY and LVM_BINARY in clvmd.
 327   Fix restart of clvmd (preserve exlusive locks). (2.02.64)
 328   Add 'Volume Type' lv_attr characters for RAID and RAID_IMAGE.
 329   Add activation/retry_deactivation to lvm.conf to retry deactivation of an LV.
 330   Replace open_count check with holders/mounted_fs check on lvremove path.
 331   Disallow the creation of mirrors (mirror or raid1 segtype) with only one leg.
 332   Cleanup restart clvmd code (no memory allocation, debug print passed args).
 333   Add all exclusive locks to clvmd restart option args.
 334   Always send the whole clvmd packet header in refresh commands.
 335   Add missing error checks for some system calls in cmirrord.
 336   Add missing log_error() to lvresize command when fsadm tool fails.
 337   Add support for DM_DEV_DIR device path into fsadm script.
 338   Support different PATH setting for fsadm script testing.
 339   Surround all executed commands with quotes in fsadm script.
 340   Fix missing '$' in test for content of "$LVM" in fsadm script.
 341   Move debug message in exec_cmd after sync_local_dev_names.
 342   Fix clvmd processing of invalid request on local socket.
 343   Fix command line option decoding.
 344   Reset LV status when unlinking LV from VG.
 345   Fix overly-strict extent-count divisibility requirements for striped mirrors.
 346   Fix rounding direction in lvresize when reducing volume size.
 347   Fix possible overflow of size if %FREE or %VG is used.
 348   Fix vgchange activation of snapshot with virtual origin.
 349   Activate virtual snapshot origin exclusively (only on local node in cluster).
 350   Fix lv_mirror_count to handle mirrored stripes properly.
 351   Fix failure to down-convert a mirror to linear due to udev "dev open" conflict
 352   Fix mirrored log creation when PE size is small: use log_size >= region_size.
 353   Fix log size calculation when only a log is being added to a mirror.
 354   Add 7th lv_attr char to show the related kernel target.
 355   Terminate pv_attr field correctly. (2.02.86)
 356   Fix 'not not' typo in pvcreate man page.
 357   Improve man page style for fsadm, lvreduce, lvremove, lvrename & lvresize.
 358   Support break for vgchange and vgrefresh operation.
 359   Switch int to unsigned type for pvmetadatacopies for pv_create().
 360   Replace :space: with [\t ] for awk in vgimportclone (not widely supported).
 361   Begin using 64-bit status field flags.
 362   Detect sscanf recovering_region input error in cmirrord pull_state().
 363   Fix error path bitmap leak in cmirrord import_checkpoint().
 364   Log unlink() error in cmirrord remove_lockfile().
 365   Remove incorrect requirement for -j or -m from lvchange error message.
 366   Fix unsafe table load when splitting off smaller mirror from a larger one.
 367   Use size_t return type for text_vg_export_raw() and export_vg_to_buffer().
 368   Add configure --enable-lvmetad for building the (experimental) LVMetaD.
 369   Fix resource leak when strdup fails in _get_device_status() (2.02.85).
 370   Directly allocate buffer memory in a pvck scan instead of using a mempool.
 371   Add configure --with-thin for segtypes "thin" and "thin_pool".
 372   Fix raid shared lib segtype registration (2.02.87).
 373
 374 Version 2.02.88 - 19th August 2011
 375 ==================================
 376   Remove incorrect 'Breaking' error message from allocation code. (2.02.87)
 377   Add lvconvert --merge support for raid1 devices split with --trackchanges.
 378   Support lvconvert of -m1 raid1 devices to a higher number.
 379   Add --trackchanges support to lvconvert --splitmirrors option for raid1.
 380   Support splitting off a single raid1 rimage in lvconvert --splitmirrors.
 381   Use sync_local_dev_names when reducing number of raid rimages in lvconvert.
 382   Add -V as short form of --virtualsize in lvcreate.
 383   Fix make clean not to remove Makefile.  (2.02.87)
 384
 385 Version 2.02.87 - 12th August 2011
 386 ==================================
 387   Fix make distclean to remove stray dmeventd and exported symbols files.
 388   Add global/detect_internal_vg_cache_corruption to lvm.conf.
 389   Use memory pool locking to check for corruption of internal VG structs.
 390   Cache and share generated VG structs.
 391   Fix possible format instance memory leaks and premature releases in _vg_read.
 392   Suppress locking error messages in monitoring init scripts.
 393   If pipe in clvmd fails return busy instead of using uninitialised descriptors.
 394   Add ability to reduce the number of mirrors in raid1 arrays to lvconvert.
 395   Add dmeventd plugin for raid.
 396   Replace free_vg with release_vg and move it to vg.c.
 397   Remove INCONSISTENT_VG flag from the code.
 398   Remove lock from cache in _lock_vol even if unlock fails.
 399   Initialise clvmd locks before lvm context to avoid open descriptor leaks.
 400   Remove obsolete gulm clvmd cluster locking support.
 401   Suppress low-level locking errors and warnings while using --sysinit.
 402   Remove unused inconsistent_seqno variable in _vg_read().
 403   Remove meaningless const type qualifiers on cast type.
 404   Add test for fcntl error in singlenode client code.
 405   Remove --force option from lvrename manpage.
 406   Add global/mirror_segtype_default to pick md raid or dm mirror as default.
 407   Add configure --with-raid for new segtype 'raid' for MD RAID 1/4/5/6 support.
 408   Change DEFAULT_UDEV_SYNC to 1 so udev_sync is used if there is no config file.
 409   Add systemd unit file to provide lvm2 monitoring.
 410   Compare file size (as well as timestamp) to detect changed config file.
 411
 412 Version 2.02.86 - 8th July 2011
 413 ===============================
 414   Remove unnecessary warning in pvcreate for MD linear devices.
 415   Move snapshot removal activation logic into lib/activate.
 416   Cope with a PV only discovered missing when creating deptree.
 417   Abort operation if dm_tree_node_add_target_area fails.
 418   Add activation/checks to lvm.conf to perform additional ioctl validation.
 419   Always preload on suspend, even if no metadata changed (lvchange --refresh).
 420   When suspending, automatically preload newly-visible existing LVs.
 421   Teardown any stray devices with $COMMON_PREFIX during test runs.
 422   Reinstate correct permissions when creating mirrors. [2.02.85]
 423   Append 'm' attribute to pv_attr for missing PVs.
 424   Annotate CLVMD_CMD_SYNC_NAMES in decode_cmd.
 425   Remove enforcement of udev verification when using non-standard /dev location.
 426   Keep an exclusive mirror non-clustered if reloaded e.g. during conversion.
 427   Reject allocation if number of extents is not divisible by area count.
 428   Fix cluster mirror creation to work with new mirror allocation algorithm.
 429   Ignore activation/verify_udev_operations if dm kernel driver vsn < 4.18.
 430   Add activation/verify_udev_operations to lvm.conf, disabled by default.
 431   Call vg_mark_partial_lvs() before VG structure is returned from the cache.
 432   Remove unused internal flag ACTIVATE_EXCL from the code.
 433   Remove useless test of ACTIVATE_EXCL in lv_add_mirrors() clustered code path.
 434   Add lv_activate_opts structure for activation (replacing activation flags).
 435   Ignore inconsistent pre-commit metadata on MISSING_PV devs while activating.
 436   Add proper udev library context initialization and finalization to liblvm.
 437   Fix last snapshot removal to avoid table reload while a device is suspended.
 438   Use dm_get_suspended_counter in replacement critical_section logic.
 439   Downgrade critical_section errors to debug level until it is moved to libdm.
 440   Fix ignored background polling default in vgchange -ay.
 441   Fix pvmove activation sequences to avoid trapped I/O with multiple LVs.
 442   Annotate critical section debug messages.
 443   Fix reduction of mirrors with striped segments to always align to stripe size.
 444   Validate mirror segments size.
 445   Include lvmetad development code in tree.
 446   Fix extent rounding for striped volumes never to reduce more than requested.
 447   Fix create_temp_name to replace any '/' found in the hostname with '?'.
 448   Always use append to file in lvmdump. selinux policy may ban file truncation.
 449   Propagate test mode to clvmd to skip activation and changes to held locks.
 450   Defer writing PV labels until vg_write.
 451   Store label_sector only in struct physical_volume.
 452   Permit --available with lvcreate so non-snapshot LVs need not be activated.
 453   Report sector containing label in verbose message.
 454   Clarify error message when unable to convert an LV into a snapshot of an LV.
 455   Add and use dev_open_readonly and variations.
 456   Do not log a superfluous stack message when the lv is properly processed.
 457   Do not issue an error message when unable to remove .cache on read-only fs.
 458   Avoid memlock size mismatch by preallocating stdio line buffers.
 459   Rewrite vgreduce --removemissing --force to share lvconvert code.
 460   Reorganize lvconvert --repair code to allow reuse.
 461
 462 Version 2.02.85 - 29th April 2011
 463 =================================
 464   Add new obtain_device_list_from_udev setting to lvm.conf.
 465   Obtain device list from udev by default if LVM2 is compiled with udev support.
 466   Add test for vgimportclone and querying of vgnames with duplicate pvs.
 467   Avoid use of released memory when duplicate PV is found.
 468   Add "devices/issue_discards" to lvm.conf.
 469   Issue discards on lvremove and lvreduce etc. if enabled and supported.
 470   Add seg_pe_ranges and devices fields to liblvm.
 471   Fix incorrect tests for dm_snprintf() failure.
 472   Fix some unmatching sign comparation gcc warnings in the code.
 473   Support lv_extend() on empty LVs.
 474   Avoid regenerating cache content when exported VG buffer is unchanged.
 475   Extend the set of memory regions that are not locked to memory.
 476   Workaround some problems when compiled for valgrind memcheck.
 477   Support controlled quit of the lvm_thread_fn function in clvmd.
 478   Fix reading of unallocated memory in lvm1 format import function.
 479   Replace several strncmp() calls with id_equal().
 480   Fix lvmcache_info transfer to orphan_vginfo in _lvmcache_update_vgname().
 481   Fix -Wold-style-definition gcc warnings.
 482   Rename MIRROR_NOTSYNCED to LV_NOTSYNCED.
 483   Fix _move_lv_segments to handle empty LVs.
 484   Fixes for lvconvert (including --repair) of temporary mirror stacks.
 485   Avoid potential loop when removing mirror images.
 486   Fix mirror removal always to take account of preferences as to which.
 487   Fix MIRRORED flag usage.
 488   Remove error messages issued by device_is_usable when run as non-root.
 489   Add missing \0 for grown debug object in _bitset_with_random_bits().
 490   Fix allocation of system_id buffer in volume_group structure.
 491   Fix readlink usage inside get_primary_dev().
 492   Use format instance mempool where possible and adequate.
 493   Call destroy_instance for any PVs found in VG structure during vg_free call.
 494   Add new free_pv_fid fn and use it throughout to free all attached fids.
 495   Use only vg_set_fid and new pv_set_fid fn to assign the format instance.
 496   Make create_text_context fn static and move it inside create_instance fn.
 497   Add mem and ref_count fields to struct format_instance for own mempool use.
 498   Use new alloc_fid fn for common format instance initialisation.
 499   Optimise _get_token() and _eat_space().
 500   Add _lv_postorder_vg() to improve efficiency for all LVs in VG.
 501   Add gdbinit script for debugging.
 502   Use hash tables to speedup string search in vg_validate().
 503   Refactor allocation of VG structure adding alloc_vg().
 504   Avoid possible endless loop in _free_vginfo when 4 or more VGs have same name.
 505   Use empty string instead of /dev// for LV path when there's no VG.
 506   Don't allocate unused VG mempool in _pvsegs_sub_single.
 507   Do not send uninitialised bytes in local clvmd messages.
 508   Support --help option for clvmd and return error for unknown option.
 509   Avoid reading freed memory when printing LV segment type.
 510   Fix syslog initialisation in clvmd to respect lvm.conf setting.
 511   Fix possible overflow in maximum stripe size and physical extent size.
 512   Improve pvremove error message when PV belongs to a VG.
 513   Extend normal policy to allow mirror logs on same PVs as images if necessary.
 514   Improve cling policy to recognise PVs already used during the transaction.
 515   Improve normal allocation algorithm to include clinging to existing areas.
 516   Add allocation/maximise_cling & mirror_logs_require_separate_pvs to lvm.conf.
 517   Adapt metadata balancing code to work with metadata handling changes.
 518   Add old_id field to physical_volume and fix pvchange -u for recent changes.
 519   Allow pvresize on a PV with two metadata areas.
 520   Change pvcreate to use new metadata handling interface.
 521   Restructure existing pv_setup and pv_write and add pv_initialise.
 522   Add internal interface to support adding and removing metadata areas.
 523   Allow internal indexing of metadata areas (PV id + mda order).
 524   Generalise internal format_instance infrastrusture for PV and VG use.
 525   Handle decimal digits with --units instead of ignoring them silently.
 526   Fix remaining warnings and compile with -Wpointer-arith.
 527   Fix gcc warnings for unused variables and const casts.
 528   Add stack backtraces for error paths in process_each_lv().
 529   Temporarily suppress error from calling yes_no_prompt while locks are held.
 530   Replace void* with char* arithmetic in _text_write, _text_read & send_message.
 531   Fix compilation without DEVMAPPER_SUPPORT.
 532   Remove fs_unlock() from lv_suspend error path.
 533   Allow memory to stay locked between leaving and re-entering critical sections.
 534   Rename memlock to critical_section throughout.
 535   Make pv_min_size configurable and increase to 2048KB to exclude floppy drives.
 536   Add find_config_tree_int64 to read 64-bit ints from config.
 537   Ensure resuming exclusive cluster mirror continues to use local mirror target.
 538   Clear temporary postorder LV status flags to allow re-use with same LV struct.
 539   Remove invalid snapshot umount mesg which floods syslog from dmeventd plugin.
 540   Add extended examples to pvmove man page.
 541   Support LVM_TEST_DEVDIR env var for private /dev during testing.
 542
 543 Version 2.02.84 - 9th February 2011
 544 ===================================
 545   Fix CRC32 calculation on big endian CPU (2.02.75).
 546
 547 Version 2.02.83 - 4th February 2011
 548 ===================================
 549   Allow exclusive activation of snapshots in a cluster.
 550   Leave EX lock unchanged when suspending a device in clvmd.
 551   Use sync_dev_names in unlock_vg macro for cluster-wide dev name sync.
 552   Fix fs operation stack handling when multiple operations on same device.
 553   Increase hash table size to 1024 lv names and 64 pv uuids.
 554   Remove fs_unlock() from lv_resume path.
 555   Fix wipe size when setting up mda.
 556   Remove unneeded checks for open_count in lv_info().
 557   Synchronize with udev before checking open_count in lv_info().
 558   Allow CLVMD_CMD_SYNC_NAMES to be propagated around the cluster if requested.
 559   Add "dmsetup ls --tree" output to lvmdump.
 560   Fix udev synchronization with no-locking --sysinit (2.02.80).
 561   Improve man page style consistency for pvcreate, pvremove, pvresize, pvscan.
 562   Avoid rebuilding of uuid validation table.
 563   Improve lvcreate error text from insufficient "extents" to "free space".
 564   Always use O_DIRECT when opening block devices to check for partitioning.
 565
 566 Version 2.02.82 - 24th January 2011
 567 ===================================
 568   Bring lvscan man page up-to-date.
 569   Fix lvchange --test to exit cleanly.
 570   Add change_tag to toollib.
 571   Allow multiple pvchange command line options to be specified together.
 572   Do not fail pvmove polling if another process cleaned up first.
 573   Avoid clvmd incrementing dlm lockspace reference count more than once.
 574   Add -f (don't fork) option to clvmd and fix clvmd -d<num> description.
 575
 576 Version 2.02.81 - 17th January 2011
 577 ===================================
 578   Do not scan devices in dev_reset_error_count().
 579   Skip unnecessary LOCK_NULL unlock call during volume deactivation.
 580   Skip fs_unlock when calling exec_cmd within activation code (for modprobe).
 581   Extend exec_cmd params to specify when device sync (fs_unlock) is needed.
 582   Replace fs_unlock by sync_local_dev_names to notify local clvmd. (2.02.80)
 583   Introduce sync_local_dev_names and CLVMD_CMD_SYNC_NAMES to issue fs_unlock.
 584   Accept fusion fio in device type filter.
 585   Add ability to convert mirror log type from disk to mirrored.
 586
 587 Version 2.02.80 - 10th January 2011
 588 ===================================
 589   Use same dm cookie for consecutive dm ops in same VG to reduce udev waits.
 590   Speed up command processing by caching resolved config tree.
 591   Pass config_tree to renamed function import_vg_from_config_tree().
 592   Detect NULL handle in get_property().
 593   Fix superfluous /usr in ocf_scriptdir instalation path.
 594   Add --with-ocfdir configurable option.
 595   Add aclocal.m4 (for pkgconfig).
 596   Fix memory leak in persistent filter creation error path.
 597   Check for errors setting up dm_task struct in _setup_task().
 598   Fail polldaemon creation when lvmcache_init() fails.
 599   Return PERCENT_INVALID for errors in _copy_percent() and _snap_percent().
 600   Remove some unused variables.
 601   Improve general lvconvert man page description.
 602   Return 0 from cmirrord initscript 'start' if daemon is already running.
 603   Fix wrongly paired unlocking of VG_GLOBAL in pvchange. (2.02.66)
 604   Add backtraces for backup and backup_remove fail paths.
 605   Detect errors from dm_task_set calls in _get_device_info (dmeventd).
 606   Add backtraces for archive and backup_locally in check_current_backup().
 607   Fix memory leak in debug mode of restart_clvmd() error path.
 608   Log error message for pthread_join() failure in clvmd.
 609
 610 Version 2.02.79 - 20th December 2010
 611 ====================================
 612   Remove some unused variables.
 613   Add missing test for reallocation error in _find_parallel_space().
 614   Add checks for allocation errors in config node cloning.
 615   Fix error path if regex engine cannot be created in _build_matcher().
 616   Use char* arithmetic in target_version(), _process_all() & _targets().
 617   Fixing const cast gcc warnings in the code.
 618   Check read() and close() results in _get_cmdline().
 619   Add const for struct config_node usage.
 620   Fix NULL pointer check in error path in clvmd do_command(). (2.02.78)
 621   Fix device.c #include to ensure 64-bit fopen64 use. (2.02.51)
 622   Add copy_percent and snap_percent to liblvm.
 623   Enhance vg_validate to ensure integrity of LV and PV structs referenced.
 624   Enhance vg_validate to check composition of pvmove LVs.
 625   Create /var/run/lvm directory during clvmd initialisation if missing.
 626   Use new dm_prepare_selinux_context instead of dm_set_selinux_context.
 627   Avoid revalidating the label cache immediately after scanning.
 628   Support scanning for a single VG in independent mdas.
 629   Don't skip full scan when independent mdas are present even if memlock is set.
 630   Set cmd->independent_metadata_areas if metadata/dirs or disk_areas in use.
 631   Cope better with an undefined target_percent operation in _percent_run.
 632   Avoid writing to freed memory in vg_release and rename to free_vg.  (2.02.78)
 633
 634 Version 2.02.78 - 6th December 2010
 635 ===================================
 636   Abort if segment tag allocation fails in pool format _add_stripe_seg.
 637   Abort in _mirrored_transient_status if referenced log/image LV is not active.
 638   Add backtraces for dev_set() and dev_close_immediate() errors in set_lv().
 639   Log any unlink() error in clvmd remove_lockfile().
 640   Log any pipe write() or close() errors in clvmd child_init_signal().
 641   Detect if orphan vginfo was lost from cache before _lvmcache_update_vgname().
 642   Do a full rescan if some device is missing in lvm1 format read_pvs_in_vg.
 643   Add missing check that dm_pool_create succeeded in write_config_node().
 644   Use dm_snprintf in clvmd-command.c to ensure an overlong buffer is truncated.
 645   Don't write to buffer if its reallocation failed in clvmd do_command().
 646   Switch from float to fixed point percentage handling.
 647   Avoid misleading missing PV warnings in vgextend --restoremissing.
 648   Fix memory leak when VG allocation policy in metadata is invalid.
 649   Ignore unrecognised allocation policy found in metadata instead of aborting.
 650   Factor out tag printing into _out_tags and avoid leaking string buffer.
 651   Remove some unused variables & assignments.
 652   Add missing vg_release calls in _vg_read_by_vgid.
 653   Fix debug logging of derived flag LCK_CACHE in clvmd.
 654   Fix test for no system_dir in _init_backup().
 655   Disallow lvconvert ops that both allocate & free supplied PEs in a single cmd.
 656   Fix liblvm seg_size to give bytes not sectors.
 657   Add functions to look up LV/PV by name/uuid to liblvm.
 658   Free cmd_context if fallback to LVM1 fails in lvm2_main().
 659   Free device name buffer in dmsetup parse_loop_device_name() error paths.
 660   Close format lib if init_format_fn fails in _init_formats().
 661   Don't leave /proc/mounts open after dmeventd snapshot event processing.
 662   Fix out-of-scope arg_vgnames use in process_each_lv().
 663   Remove incorrect dm_task_destroy(NULL) from _node_clear_table() error path.
 664   Add missing closedir in _rm_blks after removing stray LVM1 VG files.
 665   Suppress 'No PV label' message when removing several PVs without mdas.
 666   Fix default /etc/lvm permissions to be 0755. (2.02.66)
 667
 668 Version 2.02.77 - 22nd November 2010
 669 ====================================
 670   Allocate a pool for dummy VG in _pvsegs_sub_single.
 671   Add PV and LV segment types and functions to liblvm.
 672   Add set_property functions to liblvm.
 673   Remove tag length restriction and allow / = ! : # & characters.
 674   Support repetition of --addtag and --deltag arguments.
 675   Add infrastructure for specific cmdline arguments to be repeated in groups.
 676   Split the_args cmdline arguments and values into arg_props and arg_values.
 677   Fix fsadm no longer to require '-f' to resize an unmounted filesystem.
 678   Fix fsadm to detect mounted filesystems on older systems. (2.0.75)
 679   Extend cling allocation policy to recognise PV tags (cling_by_tags).
 680   Add allocation/cling_tag_list to lvm.conf.
 681   Regenerate configure with 'autoreconf' for --enable-ocf. (2.02.76)
 682
 683 Version 2.02.76 - 8th November 2010
 684 ===================================
 685   Clarify error messages when activation fails due to activation filter use.
 686   Add pacemaker script VolumeGroup.ocf with configure --enable-ocf.
 687   Import make.tmpl into include/ Makefile.
 688   Fix handling of online filesystem resize (using new fsadm return code).
 689   Add DIAGNOSTICS section to fsadm man page.
 690   Modify fsadm to return different status code for check of mounted filesystem.
 691   Update VG metadata only once in vgchange when making multiple changes.
 692   Allow independent vgchange arguments to be used together.
 693   Automatically unmount invalidated snapshots in dmeventd.
 694   Suppress some superfluous messages from clang static analysis.
 695   Fix a deadlock caused by double close in clvmd.
 696   Fix NULL pointer dereference on too-large MDA error path in _vg_read_raw_area.
 697   Use static for internal _align_chunk() and _new_chunk() from pool-fast.c.
 698   Fix vgchange to process -a, --refresh, --monitor and --poll like lvchange.
 699   Add lvm2app functions to query any pv, vg, or lv property / report field.
 700
 701 Version 2.02.75 - 25th October 2010
 702 ===================================
 703   Annotate more variables and parameters as const.
 704   Fix missing variable initialization in cluster_send() function from cmirrord.
 705   Fix pointer for VG name in _pv_resize_single error code path.
 706   Fix warning for changed alignment requirements for dmeventd read/write func.
 707   Add global/metadata_read_only to use unrepaired metadata in read-only cmds.
 708   Don't take write lock in vgchange --refresh, --poll or --monitor.
 709   Skip dm devices in scan if they contain only error targets or are empty.
 710   Fix strict-aliasing compile warning in partition table scanning.
 711   Fix pthread mutex usage deadlock in clvmd.
 712   Automatically extend snapshots with dmeventd according to policy in lvm.conf.
 713   Add activation/snapshot_autoextend_threshold/percent to lvm.conf.
 714   Fix liblvm2cmd link order to support --as-needed.
 715   Remove dependency on libm by replacing floor() by an integer-based algorithm.
 716   Fix hang when repairing a mirrored-log that had both devs fail.
 717   Convey need for snapshot-merge target in lvconvert error message and man page.
 718   Add devices/disable_after_error_count config to limit access to failing devs.
 719   Give correct error message when creating a too-small snapshot.
 720   Implement vgextend --restoremissing to reinstate missing devs that return.
 721   Make lvconvert respect --yes and --force when converting an inactive log.
 722   Refactor and add 'get' functions for lv properties/fields.
 723   Update script for fsadm testing.
 724   Better support of noninteractive shell execution of fsadm.
 725   Fix usage of --yes flag for ReiserFS resize in fsadm.
 726   Fix detection of mounted filesystems for fsadm when udev is used.
 727   Fix assignment of default value to LVM variable in fsadm.
 728   Fix support for --yes flag for fsadm.
 729   Do not execute lvresize from fsadm --dry-run.
 730   Fix fsadm return error code from user's break action.
 731   Allow CC to be overridden at build time (for 'scan-build make').
 732   Rename 'flags' to 'status' in struct metadata_area.
 733   Avoid segfault by limiting partial mode for lvm1 metadata. (2.02.74)
 734   Use dm_zalloc and dm_pool_zalloc throughout.
 735   Add pv_get_property and create generic internal _get_property function.
 736   Add 'get' functions for pv and vg properties/fields.
 737   Make generic GET_*_PROPERTY_FN macros with secondary macro for vg, pv & lv.
 738   Add tags_format_and_copy() common function and call from _tags_disp.
 739   Add id_format_and_copy() common function and call from _uuid_disp.
 740   Refactor report.c '*_disp' functions to call supporting functions.
 741   Move parts of metadata*.[ch] into new {pv|vg|lv}.[ch] files.
 742   Fix vg_read memory leak with directory-based metadata.
 743   Fix memory leak of config_tree in reinitialization code path.
 744   Fix pool destruction order in dmeventd_lvm2_exit() to avoid leak debug mesg.
 745   Read whole /proc/self/maps file before working with maps entries.
 746   Speed up unquoting of quoted double quotes and backslashes.
 747   Speed up CRC32 calculations by using a larger lookup table.
 748
 749 Version 2.02.74 - 24th September 2010
 750 =====================================
 751   Allow : and @ to be escaped with \ in device names of PVs.
 752   Replace alloca with dm_malloc in _aligned_io to avoid stack corruption.
 753   Fix partial mode operations for lvm1 metadata format.
 754   Track recursive filter iteration to avoid refreshing while in use. (2.02.56)
 755   Revert to old glibc vsnprintf behaviour in emit_to_buffer() to catch overflow.
 756   Allocate buffer for metadata tags dynamically to remove 4k limit.
 757   Add random suffix to archive file names to prevent races when being created.
 758   Reinitialize archive and backup handling on toolcontext refresh.
 759   Make poll_mirror_progress report PROGRESS_CHECK_FAILED if LV is not a mirror.
 760   Like mirrors, don't scan origins if ignore_suspended_devices() is set.
 761   Fix return type qualifier to avoid compiler warning. (2.02.69)
 762   Automatically generate LSB Requires-Start for clvmd init script.
 763   Fix return code of pvmove --abort PV.
 764   Fix pvmove --abort to remove even for empty pvmove LV.
 765   Add configure --with-default-data-alignment.
 766   Update heuristic used for default and detected data alignment.
 767   Add "devices/default_data_alignment" to lvm.conf.
 768   Add implementation for simple numeric 'get' property functions.
 769   Define GET_NUM_PROPERTY_FN macro to simplify numeric property 'get' function
 770   Add properties.[ch] to lib/report using columns.h.
 771   Add macro definitions to report infrastructure for character array length.
 772   Remove explicit double quotes from columns.h 'id' entries.
 773   Add 'flags' field to columns.h and define FIELD_MODIFIABLE.
 774   Add vg_mda_size and vg_mda_free functions.
 775   Simplify MD/swap signature detection in pvcreate and allow aborting.
 776   Allow --yes to be used without --force mode.
 777   Fix file descriptor leak in swap signature detection error path.
 778   Detect and allow abort in pvcreate if LUKS signature is detected.
 779   Always mask lock flags correctly when checking for LCK_WRITE.
 780
 781 Version 2.02.73 - 18th August 2010
 782 ==================================
 783   Fix potential for corruption during cluster mirror device failure.
 784   Use 'SINGLENODE' instead of 'dead' in clvmd singlenode messages.
 785   Ignore snapshots when performing mirror recovery beneath an origin.
 786   Pass LCK_ORIGIN_ONLY flag around cluster.
 787   Add suspend_lv_origin and resume_lv_origin using LCK_ORIGIN_ONLY.
 788   Allow internal suspend and resume of origin without its snapshots.
 789   Fix dev_manager_transient to access -real device not snapshot-origin.
 790   Monitor origin -real device below snapshot instead of overlay device.
 791   Don't really change monitoring status when in test mode.
 792   Fix some exit statuses when starting/stopping monitoring fails.
 793   Enable snapshot monitoring by default when dmeventd is enabled.
 794   Move cloned libdevmapper-event client code from segments into lib/activate.
 795   Fix 'lvconvert --splitmirrors' in cluster operation.
 796   Fix clvmd init script exit code to return 4 when executed as non-root user.
 797   Change default alignment of pe_start to 1MB.
 798   Add --norestorefile option to pvcreate.
 799   Require --restorefile when using pvcreate --uuid.
 800   Recognise and give preference to md device partitions (blkext major).
 801   Never scan internal LVM devices.
 802   Don't ignore user-specified PVs in split-mirror operations. (2.02.71)
 803   Fix data corruption bug in cluster mirrors.
 804   Require logical volume(s) to be explicitly named for lvconvert --merge.
 805   Avoid changing aligned pe_start as a side-effect of very verbose logging.
 806   Use built-in rule for device aliases: block/ < dm- < disk/ < mapper/ < other.
 807   Fix const warning in dev_manager_info() and _dev_manager_lv_rmnodes().
 808   Fix const warning in archive_file structure from archive.c.
 809   Clean generated files .exported_symbols_generated, example.conf for distclean.
 810   Handle failure of all mirrored log devices and all but one mirror leg.
 811   Disallow 'mirrored' log type for cluster mirrors.
 812   Do not use VPATH in include/Makefile.
 813   Fix exported_symbols generation to use standard compiler arguments.
 814   Use #include <> not "" in lvm2app.h which gets installed on the system.
 815   Make lib and liblvm.device-mapper wait for include file generation.
 816   Fix configure to supply DEFAULT_RUN_DIR to Makefiles.
 817   Fix allocation of wrong number of mirror logs with 'remove' fault policy.
 818
 819 Version 2.02.72 - 28th July 2010  [CVE-2010-2526]
 820 =================================================
 821   Change clvmd to communicate with lvm2 via a socket in /var/run/lvm.
 822   Return controlled error if clvmd is run by non-root user.
 823   Add configure --default-run-dir for /var/run/lvm.
 824   Never use clvmd singlenode unless explicitly requested with -Isinglenode.
 825
 826 Version 2.02.71 - 28th July 2010
 827 ================================
 828   Document LVM fault handling in doc/lvm_fault_handling.txt.
 829   Make vgck warn about missing PVs.
 830   Clarify help text for vg_mda_count.
 831   Check if cluster log daemon is running before allowing cmirror create.
 832   Add unit-tests dir.
 833   Add configure --enable-testing and reports and report-generators dirs.
 834   Correct LV list order used by lvconvert when splitting a mirror.
 835   Check if LV with specified name already exists when splitting a mirror.
 836   Fix suspend/resume logic for LVs resulting from splitting a mirror.
 837   Update pvcreate, {pv|vg}change, and lvm.conf man pages about metadataignore.
 838   Switch cmirrord and clvmd to use dm_create_lockfile.
 839   Allow clvmd pidfile to be configurable.
 840   Update comments about memory handling in lvm2app.h.
 841   Add more verbose messages while checking volume_list and hosttags settings.
 842   Add log_error when strdup fails in {vg|lv}_change_tag().
 843   Remove unnecessary includes in liblvm files.
 844   Use __attribute__ consistently throughout.
 845   Fix redundant declarations and always compile with -Wredundant-decls.
 846   Fix possible hang when all mirror images of a mirrored log fail.
 847   Pass metadataignore to pv_create, pv_setup, _mda_setup, and add_mda.
 848   Init mda->list in mda_copy.
 849   Do not log backtrace in valid _lv_resume() code path.
 850   Cleanup help strings in configure.in.
 851   Prompt if metadataignore with vgextend or pvchange would adjust vg_mda_copies.
 852   Adjust vg_mda_copies if metadataignore given with vgextend or pvchange.
 853   Adjust auto-metadata repair and caching logic to try to cope with empty mdas.
 854
 855 Version 2.02.70 - 6th July 2010
 856 ===============================
 857   Remove log directly if all mirror images of a mirrored log fail.
 858   Randomly select which mdas to use or ignore.
 859   Add some missing standard configure.in checks.
 860   Add printf format attributes to yes_no_prompt and fix a caller.
 861   Always pass unsuspended dm devices through persistent filter to other filters.
 862   Move test for suspended dm devices ahead of other filters.
 863   Fix another segfault in clvmd -R if no response from daemon. (2.02.68)
 864   Remove superfluous suspended device counter from clvmd.
 865   Fix lvm shell crash when input is entirely whitespace.
 866   Update partial mode warning message.
 867   Preserve memlock balance in clvmd when activation triggers a resume.
 868   Restore the removemissing behaviour of lvconvert --repair --use-policies.
 869
 870 Version 2.02.69 - 30th June 2010
 871 ================================
 872   Fix vgremove to allow removal of VG with missing PVs. (2.02.52)
 873   Add metadata/vgmetadatacopies to lvm.conf.
 874   Add --metadataignore to pvcreate and vgextend.
 875   Add vg_mda_copies, pv_mda_used_count and vg_mda_used_count to reports.
 876   Describe --vgmetadatacopies in lvm.conf and other man pages.
 877   Add --[vg]metadatacopies to select number of mdas to use in a VG.
 878   Make the metadata ignore bit control read/write metadata areas in a PV.
 879   Add pvchange --metadataignore to set or clear a metadata ignore bit.
 880   Refactor metadata code to prepare for --metadataignore / --vgmetadatacopies.
 881   Ensure region_size of mirrored log does not exceed its full size.
 882   Generate liblvm2app exported symbols from header file.
 883   Preload libc locale messages to prevent reading it in memory locked state.
 884   Fix handling of simultaneous mirror image and mirrored log image failure.
 885
 886 Version 2.02.68 - 23rd June 2010
 887 ================================
 888   Fix clvmd initscript status to print only active clustered LVs.
 889   Add lv_path to reports to offer full /dev pathname.
 890   Fix typo in warning message about missing device with allocated data areas.
 891   Add device name and offset to raw_read_mda_header error messages.
 892   Honour log argument when down-converting stacked mirror.
 893   Sleep to workaround clvmd -S race: socket closed early and server drops cmd.
 894   Use early udev synchronisation and update of dev nodes for clustered mirrors.
 895   Remove incorrect inclusion of kdev_t.h from cmirrord/functions.h.
 896   Add man pages for lvmconf and non-existent lvmsadc and lvmsar tools.
 897   Exit successfully when using -o help (but not -o +help) with LVM reports.
 898   Do not use internal DLM lock definitions in generic LVM2 clvmd code.
 899   Add --force, --nofsck and --resizefs to lvresize/extend/reduce man pages.
 900   Fix lvm2cmd example in documentation.
 901   Allow use of lvm2app and lvm2cmd headers in C++ code.
 902   Remove unused #includes from clvmd files and introduce clvmd-common.h.
 903   Move common inclusions to clvmd-common.h.
 904   Use #include "" for libdevmapper.h and configure.h throughout tree.
 905   Fix LVM_PATH expansion when exec_prefix=NONE. (2.02.67)
 906   Fix segfault in clvmd -R if no response from daemon received.
 907
 908 Version 2.02.67 - 4th June 2010
 909 ===============================
 910   Handle failed restart of clvmd using -S switch properly.
 911   Fix clvmd initscript restart command to start clvmd if not yet running.
 912   Use built-in absolute paths in clvmd (clvmd restart and PV and LV queries).
 913   Require partial option in lvchange --refresh for partial LVs.
 914   Do not fail lvm_init() if init_logging() or _init_rand() generates an errno.
 915   Don't merge unchanged persistent cache file before dumping if tool scanned.
 916   Fix incorrect memory pool deallocation while using vg_read for files.
 917   Add --type parameter description to the lvcreate man page.
 918   Replace strncmp kernel version number checks with proper ones.
 919   Avoid selecting names under /dev/block if there is an alternative.
 920   Update clustered log kernel module name to log-userspace for 2.6.31 onwards.
 921   Add replicators' LVs to dtree for activation.
 922   Supress activation message if there is a missing replicator VG.
 923   Fix scripts/relpath.awk to work in mawk
 924   Extend lock_vol to check for missing replicator VGs first.
 925   Update _process_one_vg and process_each_lv_in_vg to populate cmd_vg.
 926   Add cmd_vg structure and associated functions for replicator.
 927   Extend _lv_each_dependency() to handle replicator dependencies.
 928   Add check_replicator_segment() to catch internal replicator errors.
 929   Initial support for replicator metadata.
 930   Extend process_each_lv_in_vg() to provide list of failed lvnames.
 931   Consistently return ECMD_FAILED if process_each_*lv() is interrupted.
 932
 933 Version 2.02.66 - 20th May 2010
 934 ===============================
 935   If unable to obtain snapshot percentage leave value blank on reports.
 936   Add install_system_dirs and install_initscripts makefile targets.
 937   Add configure options for system and locking directories.
 938   Generate example.conf so default lvm.conf contents can be configured.
 939   Install lvmconf script by default.
 940   Remove unnecessary versioned dmeventd plugin symlinks.
 941   Add tests for lvm_vgname_from_{pvid|device}.
 942   Add lvm2app interfaces to lookup a vgname from a pvid and pvname.
 943   Update pvchange to always obtain a vg handle for each pv to process.
 944   Add find_vgname_from_{pvname|pvid} functions.
 945   Add pvid_from_devname and lvmcache_vgname_from_pvid lvmcache functions.
 946   Validate orphan and VG_GLOBAL lock order too.
 947   Accept orphan VG names as parameters to lock_vol() and related functions.
 948   Use is_orphan_vg in place of hard-coded prefix tests and add is_global_vg.
 949
 950 Version 2.02.65 - 17th May 2010
 951 ===============================
 952   Fix clvmd init script never to deactivate non-clustered volume groups.
 953   Disallow vgchange --clustered if there are active mirrors or snapshots.
 954   Introduce lv_is_mirrored.
 955   Use /bin/bash for scripts with bashisms.
 956   Skip internal lvm devices in scan if ignore_suspended_devices is set.
 957   Do not merge old device cache after we run full scan. (2.02.56)
 958   Add pkgconfigdir Makefile variable for make install override.
 959   Configure pkgconfig udev and selinux dependencies.
 960   Switch Libs.private to Requires.private in devmapper.pc and lvm2app.pc.
 961   Use pkgconfig Requires.private for devmapper-event.pc.
 962   Add libdevmapper to linked libdevmapper-event.so.
 963   Link liblvm2cmd.so with libdevmapper-event and libdevmapper.
 964   Fix truncated total size displayed by pvscan.
 965   Add new --sysinit compound option to vgchange and lvchange.
 966   Drop duplicate errors for read failures and missing devices to verbose level.
 967   Use $(libdir)/lvm2 with make install_lvm2_plugin.
 968   Use $(libdir)/device-mapper with make install_dm_plugin.
 969   Add dm_list_splice() function to join two lists together.
 970
 971 Version 2.02.64 - 30th April 2010
 972 =================================
 973   Avoid pointless initialisation when the 'version' command is run directly.
 974   Fix memory leak for invalid regex pattern input.
 975   Display invalid regex pattern for filter configuration in case of error.
 976   Remove no-longer-used arg_ptr_value.
 977   Fix -M and --type to use strings, not pointers that change on config refresh.
 978   Fix lvconvert error message when existing mirrored LV is not found.
 979   Set appropriate udev flags for reserved LVs.
 980   Disallow the direct removal of a merging snapshot.
 981   Don't preload the origin when removing a snapshot whose merge is pending.
 982   Disallow the addition of mirror images while a conversion is happening.
 983   Disallow primary mirror image removal when mirror is not in-sync.
 984   Remove obsolete --name parameter from vgcfgrestore.
 985   Add -S command to clvmd to restart the daemon preserving exclusive locks.
 986   Increment lvm2app version from 1 to 2 (memory allocation changes).
 987   Change lvm2app memory alloc/free for pv/vg/lv properties.
 988   Change daemon lock filename from lvm2_monitor to lvm2-monitor for consistency.
 989   Install symbolic .so links with relative paths between usrlibdir and libdir.
 990   Add awk script relpath.awk to calculate paths for relative symlinks.
 991   Use @AWK@ in makefiles.
 992   Fix double DESTDIR usage for infodir and mandir.
 993
 994 Version 2.02.63 - 14th April 2010
 995 =================================
 996   Rename lvm_dump.sh to lvmdump.sh.
 997   Allow incomplete mirror restore in lvconvert --repair upon insufficient space.
 998   Do not reset position in metadata ring buffer on vgrename and vgcfgrestore.
 999   Allow VGs with active LVs to be renamed.
1000   Use UUIDs instead of names while processing event handlers.
1001   Only pass visible LVs to tools in cmdline VG name/tag expansions without -a.
1002   Use typedefs for toollib process_each functions.
1003   Use C locales and use_mlockall for clvmd.
1004   Refactor code related to vg->pvs list and add pv->vg link.
1005   Mask LCK_HOLD flag in cluster VG locks for backwards compatibility.
1006   Add activation/polling_interval to lvm.conf as --interval default.
1007   Don't ignore error if resuming any LV fails in resume_lvs.
1008   Skip closing persistent filter cache file if open failed.
1009   Install .a and .so links into $(usrlibdir).
1010   Add --enable-write_install options to install user-writable files.
1011   Use INSTALL_PROGRAM/DATA/WDATA target.
1012   Switch from using VPATH  to vpath in Makefiles.
1013   Permit mimage LVs to be striped in lvcreate, lvresize and lvconvert.
1014   Fix pvmove allocation to take existing parallel stripes into account.
1015   Add pvmove_source_seg to struct lv_segment.
1016   Fix incorrect removal of symlinks after LV deactivation fails.
1017   Fix is_partitioned_dev not to attempt to reopen device.
1018   Fix another thread race in clvmd.
1019   Refactor management of vg->pvs list.
1020   Fix lcov rules and generate better coverage report.
1021   Improve vg_validate to detect some loops in lists.
1022   Change most remaining log_error WARNING messages to log_warn.
1023   Always use blocking lock for VGs and orphan locks.
1024   Allocate all memory for segments from private VG mempool.
1025   Return newly allocated PV segment after segment split.
1026   Optimise searching PV segments for seeking the most recently-added.
1027   Remove vg_validate call when parsing cached metadata.
1028   Use hash table of LVs to speed up parsing of text metadata with many LVs.
1029   Fix two vg_validate messages, adding whitespace and parentheses.
1030   When dmeventd is not forking because of -d flag, don't kill parent process.
1031   Fix 'make install' when $(builddir) is different from $(srcdir).
1032   Fix dso resource leak in error path of dmeventd.
1033   Use C locales and use_mlockall for dmeventd.
1034   Fix --alloc contiguous policy only to allocate one set of parallel areas.
1035   Do not allow {vg|lv}change --ignoremonitoring if on clustered VG.
1036   Improved dependency tracking for dmeventd and liblvm2cmd sources.
1037   Improved Makefile rules for distclean and cflow targets.
1038   Add ability to create mirrored logs for mirror LVs.
1039   Fix clvmd cluster propagation of dmeventd monitoring mode.
1040   Allow ALLOC_ANYWHERE to split contiguous areas.
1041   Use INTERNAL_ERROR for internal errors throughout tree.
1042   Add some assertions to allocation code.
1043   Introduce pv_area_used into allocation algorithm and add debug messages.
1044   Add activation/monitoring to lvm.conf.
1045   Add --monitor and --ignoremonitoring to lvcreate.
1046   Allow dynamic extension of array of areas selected as allocation candidates.
1047   Export and use only valid cookie value in test suite.
1048   Remove const modifier for struct volume_group* from process_each_lv_in_vg().
1049   Don't allow resizing of internal logical volumes.
1050   Fix libdevmapper-event pkgconfig version string to match libdevmapper.
1051   Avoid scanning all pvs in the system if operating on a device with mdas.
1052   Add configure --with-clvmd=singlenode to use clvmd w/o cluster infrastructure.
1053   Get stacktrace if testsuite test drops core and lvm was built with debugging.
1054   Disable long living process flag in lvm2app.
1055   Fix pvcreate device md filter check.
1056   Suppress repeated errors about the same missing PV uuids.
1057   Bypass full device scans when using internally-cached VG metadata.
1058   Only do one full device scan during each read of text format metadata.
1059   Remove unnecessary full_scan parameter from get_vgids and get_vgnames calls.
1060   Look up missing PVs by uuid not dev_name in _pvs_single to avoid invalid stat.
1061   Make find_pv_in_vg_by_uuid() return same type as related functions.
1062   Introduce is_missing_pv().
1063   Fix clvmd Makefile to not overwrite LIBS from template definition.
1064
1065 Version 2.02.62 - 9th March 2010
1066 ================================
1067   Add use_mlockall and mlock_filter to activation section of lvm.conf.
1068   Add default alternative to mlockall using mlock to reduce pinned memory size.
1069   Remove -rdynamic from static builds.
1070   Update checks for pthread, readline & selinux libs and link only when needed.
1071   Introduce makefile vars UDEV_LIBS, DL_LIBS, SELINUX_LIBS, STATIC_LIBS.
1072   Introduce makefile vars LVMINTERNAL_LIBS, READLINE_LIBS, PTHREAD_LIBS.
1073   Toggle configure help to print --disable-fsadm.
1074   Use $() instead of ${} consistently for all Makefile variables.
1075   Replace CFLOW_CMD only in make.tmpl and use it as variable elsewhere.
1076   Use $(top_builddir) for inclusion of make.tmpl in Makefiles.
1077   Fix autoconf warning about ignored datarootdir.
1078   Increase AC_PREREQ version to 2.61 (for AC_PROC_SED, AC_PROG_MKDIR_P).
1079   Handle misaligned devices that report alignment_offset of -1.
1080   Extend core allocation code in preparation for mirrored log areas.
1081   Rewrite clvmd init script.
1082   Remove lvs_in_vg_activated_by_uuid_only call.
1083   No longer fall back to looking up active devices by name if uuid not found.
1084   Don't touch /dev in vgmknodes if activation is disabled.
1085   Update lvm2app.h Doxygen comments and add lvm2app Doxygen config file.
1086   Update nightly tests and lvm2app unit tests to cover tags.
1087   Add lvm2app functions lvm_{vg|lv}_{get|add|remove}_tag() functions.
1088   Add dm_pool_strdup to allocate and copy memory in tag library function.
1089   Refactor vgcreate, vgchange, and lvchange for tag library function.
1090   Refactor snapshot-merge deptree and device removal to support info-by-uuid.
1091
1092 Version 2.02.61 - 15th February 2010
1093 ====================================
1094   Fix some consts and floating point gcc warnings.
1095   Fix dm_report_field_uint64 function to accept 64-bit ints.
1096   Change readhead display to use 32-bit -1 const instead of 64-bit.
1097   Add LVM_SUPPRESS_LOCKING_FAILURE_MESSAGES environment variable.
1098   Remove hard-coding that skipped _mimage devices from 11-dm-lvm.rules.
1099   Use udev transactions in test suite.
1100   Set udev state automatically instead of using LVM_UDEV_DISABLE_CHECKING.
1101   Add lvm_pv_get_size, lvm_pv_get_free and lvm_pv_get_dev_size to lvm2app.
1102   Change lvm2app to return all sizes in bytes as documented (not sectors).
1103   Add 'fail_if_percent_unsupported' arg to _percent and _percent_run.
1104   Remove false "failed to find tree node" error when activating merging origin.
1105   Exit with success when lvconvert --repair --use-policies performs no action.
1106   Accept a list of LVs with 'lvconvert --merge @tag' using process_each_lv.
1107   Avoid unnecessary second resync when adding mimage to core-logged mirror.
1108   Exclude internal VG names and uuids from lists returned through lvm2app.
1109   Add %ORIGIN support to lv{create,extend,reduce,resize} --extents.
1110   Add _mda_copy to clone a struct metadata_area.
1111   Remove pointless versioned symlinks to dmeventd plugin libraries.
1112   Fix dmeventd snapshot plugin build dependency.
1113   Make clvmd -V return status zero.
1114   Remove unnecessary 'dmsetup resume' following 'dmsetup create' in tests.
1115   Fix cmirrord segfault in clog_cpg list processing when converting mirror log.
1116   Deactivate temporary pvmove mirror cluster-wide when activating it fails.
1117   Always query device by uuid and not name in clvmd.
1118   Add missing metadata vg_reverts in pvmove error paths.
1119   Unlock shared lock in clvmd if activation calls fail.
1120   Return success from dev_manager_info with non-existent uuid if ioctl succeeds.
1121
1122 Version 2.02.60 - 23rd January 2010
1123 ===================================
1124   Extend cmirrord man page.
1125   Sleep before first progress check if pvmove/lvconvert interval has prefix '+'.
1126   Default to checking progress before waiting in _wait_for_single_lv.
1127   Fix cmirror initscript (including syntax error).
1128   Eliminate avoidable ioctls for checking open_count in _add_new_lv_to_dtree.
1129   Disable memory debugging if dmeventd is configured. (Not thread-safe.)
1130   Fix first log message prefix in syslog for dmeventd plugins.
1131   Fix exported symbols names for dmeventd lvm2 wrapper plugin.
1132   Make failed locking initialisation messages more descriptive.
1133
1134 Version 2.02.59 - 21st January 2010
1135 ===================================
1136   Add libdevmapper-event-lvm2.so to serialise dmeventd plugin liblvm2cmd use.
1137   Cleanup memory initialization and freeing in pv_read() and pv_create().
1138   Clear pointer and counters after their release in _fin_commands().
1139   Stop dmeventd trying to access already-removed snapshots.
1140   Remove (fallback) /dev mknod from cmirrord.
1141   Add t-topology-support.sh and t-snapshot-merge.sh tests.
1142   Fix clvmd to never scan suspended devices.
1143   Fix dmeventd build outside source tree.
1144   Assorted cmirror code changes to remove various compiler warnings.
1145   Fix detection of completed snapshot merge.
1146   Add Red Hat cmirror initscript (unfinished).
1147   Add cmirrord man page (incomplete).
1148   Make cluster log communication structures architecture independant.
1149   Fix cluster log in-memory bitmap handling.
1150   Improve snapshot merge metadata import validation.
1151   Improve target type compatibility checking in _percent_run().
1152   Add 'target_status_compatible' method to 'struct segtype_handler'.
1153   Change underscore to hyphen in table line for clustered log type.
1154
1155 Version 2.02.58 - 14th January 2010
1156 ===================================
1157   Cleanup some minor gcc warnings.
1158   Add --merge to lvconvert to merge a snapshot into its origin.
1159   Fix clvmd automatic target module loading crash (no reset_locking fn).
1160   Fix allocation code not to stop at the first area of a PV that fits.
1161
1162 Version 2.02.57 - 12th January 2010
1163 ===================================
1164   Ensure exactly one process returns from poll_daemon(), never two.
1165   Reset _vgs_locked in lvmcache_init() in child after forking.
1166   Define {DM, LVM}_UDEV_DISABLE_CHECKING=1 environment variables during tests.
1167   Enable udev_sync and udev_rules in lvm.conf by default while running tests.
1168   If LVM_UDEV_DISABLE_CHECKING in set in environment, disable udev warnings.
1169   Add --splitmirrors to lvconvert to split off part of a mirror.
1170   Change background polldaemon's process name to "(lvm2)".
1171   Allow vgremove to remove a VG with PVs missing after a prompt.
1172   Return success in lvconvert --repair --use-policies on failed allocation.
1173   Keep log type consistent when changing mirror image count.
1174   Always set environment variables for an LVM2 device in 11-dm-lvm.rules.
1175   Add activation/udev_rules config option in lvm.conf.
1176   Add consts to text metadata flag structs.
1177   Add macros outfc, outsize, outhint and function out_text_with_comment.
1178   Reimplement report FIELD macro using offsetof instead of static structs.
1179   Fix fsadm man page typo (fsdam).
1180   Rename mirror_device_fault_policy to mirror_image_fault policy.
1181   Remove empty PV devices if lvconvert --repair is using defined policies.
1182   Use fixed buffer to prevent stack overflow in persistent filter dump.
1183   Use extended status of new kernel snapshot target 1.8.0 to detect when empty.
1184   Insert stack macros in suspend_lv, resume_lv & (de)activate_lv callers.
1185   Add --poll flag to vgchange and lvchange to control background daemon launch.
1186   Propagate metadata commit and revert notifications to other cluster nodes.
1187   Use proper mask for VG lock mode in clvmd.
1188   Allow precommitted metadata to be dropped from lvmcache.
1189   Move processing of VG locks to separate function in clvmd.
1190   Properly decode all flags in clvmd messages including VG locks.
1191   Properly handle precommitted cache flag when only committed metadata present.
1192   Resume renamed volumes in reverse order to preserve memlock pairing.
1193   Drop cached metadata after device was auto-repaired and removed from VG.
1194   Clear MISSING_PV flag if PV reappeared and is empty.
1195   Fix removal of multiple devices from a mirror.
1196   Also clean up PVs flagged as missing in vgreduce --removemissing --force.
1197   Introduce INTERNAL_ERROR macro for error messages and use throughout.
1198   Remove superfluous returns from void functions.
1199   Destroy allocated mempool in _vg_read_orphans() error path.
1200   Fix some pvresize and toollib error paths with missing VG releases/unlocks.
1201   Explicitly call suspend for temporary mirror layer.
1202   Allow use of precommitted metadata when a PV is missing.
1203   Add memlock information to do_lock_lv debug output.
1204   Always bypass calls to remote cluster nodes for non-clustered VGs.
1205   Permit implicit cluster lock conversion in pre/post callbacks on local node.
1206   Permit implicit cluster lock conversion to the lock mode already held.
1207   Fix lock flag masking in clvmd so intended code paths get invoked.
1208   Replace magic masks in cluster locking code by defined masks.
1209   Remove newly-created mirror log from metadata if initial deactivation fails.
1210   Correct activated or deactivated text in vgchange summary message.
1211   Improve pvmove error message when all source LVs are skipped.
1212   Fix memlock imbalance in lv_suspend if already suspended.
1213   Fix pvmove test mode not to poll (and fail).
1214   Fix vgcreate error message if VG already exists.
1215   Fix tools to use log_error when aborted due to user response to prompt.
1216   Fix ignored readahead setting in lvcreate --readahead.
1217   Fix clvmd memory leak in lv_info_by_lvid by calling release_vg.
1218   If aborting due to internal error, always send that message to stderr.
1219   Add global/abort_on_internal_errors to lvm.conf to assist testing.
1220   Fix test Makefiles when builddir and srcdir differ.
1221   Impose limit of 8 mirror images to match the in-kernel kcopyd restriction.
1222   Use locking_type 3 (compiled in) for lvmconf --enable-cluster.
1223   Remove list.c and list.h with no-longer-used dm_list macros and functions.
1224   Log failure type and recognise type 'F' (flush) in dmeventd mirror plugin.
1225   Extend internal PV/VG/LV/segment status variables from 32-bit to 64-bit.
1226
1227 Version 2.02.56 - 24th November 2009
1228 ====================================
1229   Add missing vg_release to pvs and pvdisplay to fix memory leak.
1230   Do not try to unlock VG which is not locked in _process_one_vg.
1231   Move is_long_lived persistent_filter_dump to happen after every full scan.
1232   Refresh device filters before full device rescan in lvmcache.
1233   Return error status if vgchange fails to activate some volume.
1234   Fix suspend/resume lock type test causing unbalanced memory locking.
1235   Revert vg_read_internal change as clvmd was not ready for vg_read. (2.02.55)
1236
1237 Version 2.02.55 - 19th November 2009
1238 ====================================
1239   Fix deadlock when changing mirrors due to unpaired memlock refcount changes.
1240   Use separate memlock counter for dmeventd handlers to permit device scanning.
1241   Directly restrict vgchange to activating visible LVs.
1242   Fix pvmove region_size overflow for very large PVs.
1243   Fix lvcreate and lvresize %PVS argument always to use sensible total size.
1244   Tidy some uses of arg_count and introduce arg_is_set.
1245   Export outnl and indent functions for modules.
1246   Flush stdout after yes/no prompt.
1247   Update vgsplit and vgcreate to use vg_set_clustered.
1248   Add vg_mda_count and vg_set_clustered library functions.
1249   Add more vgcreate and vgsplit nightly tests.
1250   Insert some missing stack macros into activation code.
1251   Recognise DRBD devices and handle them like md devices.
1252
1253 Version 2.02.54 - 26th October 2009
1254 ===================================
1255   Update lvcreate/lvconvert man pages to explain PhysicalVolume parameter.
1256   Document --all option in man pages, cleanup {pv|vg|lv}{s|display} man pages.
1257   Permit snapshots of mirrors.
1258   Cleanup mimagetmp LV if allocation fails for new lvconvert mimage.
1259   Fix clvmd segfault when refresh_toolcontext fails.
1260   Remember to clear 'global lock held during cache refresh' state after use.
1261   Use udev flags support in LVM and apply various fixes to udev rules.
1262   Delay announcing mirror monitoring to syslog until initialisation succeeded.
1263   Handle metadata with unknown segment types more gracefully.
1264   Set default owner and group to null.
1265   Add dmeventd.static to the build.
1266   Disable realtime support code by default.
1267   Make clvmd return 0 on success rather than 1.
1268   Add --pvmetadatacopies for pvcreate, vgcreate, vgextend, vgconvert.
1269   Add implict pvcreate support to vgcreate and vgextend.
1270   Correct example.conf to indicate that lvm2 not lvm1 is the default format.
1271   Remove an unused stray LVM1_SUPPORT ifdef.
1272   Only include selinux libs in libdevmapper.pc when selinux build enabled.
1273   Allow for a build directory separate from the source.
1274   Update distclean target for rename clogd to cmirrord. (2.02.52)
1275   Only do lock conversions in clvmd if we are explicitly asked for one.
1276   Introduce percent_range_t and centralise snapshot full/mirror in-sync checks.
1277   Factor out poll_mirror_progress and introduce progress_t.
1278   Distinguish between powers of 1000 and powers of 1024 in unit suffixes.
1279   Restart lvconverts in vgchange by sharing lv_spawn_background_polling.
1280   Generalise polldaemon code by changing mirror-specific variable names.
1281   Don't attempt to deactivate an LV if any of its snapshots are in use.
1282   Return error if lv_deactivate fails to remove device from kernel.
1283   Provide alternative implementation of obsolete siginterrupt().
1284   Consolidate LV allocation into alloc_lv().
1285   Treat input units of both 's' and 'S' as 512-byte sectors.  (2.02.49)
1286   Use standard output units for 'PE Size' and 'Stripe size' in pv/lvdisplay.
1287   Add configure --enable-units-compat to set si_unit_consistency off by default.
1288   Add global/si_unit_consistency to enable cleaned-up use of units in output.
1289
1290 Version 2.02.53 - 25th September 2009
1291 =====================================
1292   Create any directories in /dev with DM_DEV_DIR_UMASK (022).
1293   Enable dmeventd monitoring section of config file by default.
1294   Update lvm2 monitoring script to lvm2_monitoring_init_red_hat.in.
1295   Fix lvm2app test to run under test/api subdirectory only when configured.
1296   Add vg_is_resizeable() and cleanup reference to VG_RESIZEABLE.
1297
1298 Version 2.02.52 - 15th September 2009
1299 =====================================
1300   Update _process_one_vg to cleanup properly after vg_read_error.
1301   Add lots of missing stack debug messages to tools.
1302   Make readonly locking available as locking type 4.
1303   Fix readonly locking to permit writeable global locks (for vgscan). (2.02.49)
1304   Add DM_UDEV_RULES_VSN environment variable to udev rules.
1305   Update vgsplit, vgmerge, and vgrename to obey new vgname ordering rules.
1306   Make lvm2app pv_t, lv_t, vg_t handle definitions consistent with lvm_t.
1307   Enforce an alphabetical lock ordering on vgname locking.
1308   Prioritise write locks over read locks by default for file locking.
1309   Add local lock files with suffix ':aux' to serialise locking requests.
1310   Fix global locking in PV reporting commands (2.02.49).
1311   Fix pvcreate string termination in duplicate uuid warning message.
1312   Don't loop reading sysfs with pvcreate on a non-blkext partition (2.02.51).
1313   Fix vgcfgrestore error paths when locking fails (2.02.49).
1314   Update Makefile distclean target.
1315   Add libudev configuration check.
1316   Make clvmd check corosync to see what cluster interface it should use.
1317   Add clvmd autodetection check and cleanup related configure messages.
1318   Rewrite clvmd configuration code to cope with all combinations of libs.
1319   Added configure --enable-cmirrord to build the cluster mirror log daemon.
1320   Rename clogd to cmirrord.
1321   Make lvchange --refresh only take a read lock on volume group.
1322   Fix race where non-blocking file locks could be granted in error.
1323   Fix vgextend error path - if ORPHAN lock fails, unlock / release vg (2.02.49).
1324   Fix compile warning in clvmd.
1325   Clarify use of PE ranges in lv{convert|create|extend|resize} man pages.
1326   Remove useless _pv_write wrapper.
1327   Add lvm2app.sh to tests conditional upon configure --enable-applib.
1328   Add lvm_vg_is_clustered, lvm_vg_is_exported, and lvm_vg_is_partial.
1329   Update lvm_vg_remove to require lvm_vg_write to commit remove to disk.
1330   Update test/api/test.c to call lvm_vg_create and lvm_vg_remove.
1331
1332 Version 2.02.51 - 6th August 2009
1333 =================================
1334   Fix locking in clvmd (2.02.50).
1335   Add --noudevsync option for relevant LVM tools.
1336   Add activation/udev_sync to lvm.conf.
1337   Only change LV symlinks on ACTIVATE not PRELOAD.
1338   Make lvconvert honour log mirror options combined with downconversion.
1339   Allow LV suspend while --ignorelockingfailure is in force.
1340   Update synopsis in lvconvert manpage to mention --repair.
1341   Set cookies in activation code and wait for udev to complete processing.
1342   Added configure --enable-udev_rules --enable-udev_sync.
1343   Added configure --with-udev-prefix --with-udevdir.
1344   Added udev dir to hold udev rules.
1345   Add devices/data_alignment_detection to lvm.conf.
1346   Add devices/data_alignment_offset_detection to lvm.conf.
1347   Add --dataalignmentoffset to pvcreate to shift start of aligned data area.
1348   Fix _mda_setup() to not check first mda's size before pe_align rounding.
1349   Document -I option of clvmd in the man page.
1350   Fix configure script to handle multiple clvmd selections.
1351   Fix lvm2app.pc installation filename.
1352   Remove pv_t, vg_t & lv_t handles from lib.  Only liblvm uses them.
1353   Rename lvm.h to lvm2app.h for now.
1354
1355 Version 2.02.50 - 28th July 2009
1356 ================================
1357   Change test/api/test.c prompt so it's not confused with the main lvm prompt.
1358   Update liblvm unit tests in test/api to cover latest liblvm changes.
1359   Add unimplemented lvm_lv_resize and lvm_pv_resize skeletons to liblvm.
1360   Add lvm_library_get_version to liblvm.
1361   Add lvm_config_override to liblvm to allow caller to override LVM config.
1362   Add lvm_lv_is_active and lvm_lv_is_suspended to liblvm.
1363   Add lvm_lv_activate and lvm_lv_deactivate to liblvm.
1364   Add lvm_scan, lvm_vg_reduce and lvm_vg_remove_lv to liblvm.
1365   Add functions to get numeric properties to liblvm.
1366   Add lvm_{pv|vg|lv}_get_{name|uuid} to liblvm.
1367   Add lvm_vg_list_pvs and lvm_vg_list_lvs to liblvm.
1368   Add lvm_vg_open and lvm_vg_create_lv_linear to liblvm.
1369   Add lvm_list_vg_names/uuids to liblvm.
1370   Add lvm_errno and lvm_errmsg to liblvm to obtain failure information.
1371   Rename lvm_create/destroy to lvm_init/quit.
1372   Rename lvm_reload_config to lvm_config_reload.
1373   Refactor _override_settings to use new override_config_tree_from_string.
1374   Add vg_reduce to metadata.c and metadata-exported.h.
1375   Update lvm.h to clarify API behavior and return codes.
1376   Update lvm_vg_extend to do an implicit pvcreate on the device.
1377   Update display.c to use vg_free(vg) instead of duplicating the calculation.
1378   Refactor vg_size, vg_free, and pv_mda_count field calculations for liblvm.
1379   Refactor pvcreate and lvcreate for liblvm.
1380   Add global/wait_for_locks to lvm.conf so blocking for locks can be disabled.
1381   All LV locks are non-blocking so remove LCK_NONBLOCK from separate macros.
1382   Fix race condition with vgcreate and vgextend on same device (2.02.49).
1383   Remove redundant validate_name call from vgreduce.
1384   Remove unused handles lvseg, pvseg inside liblvm/lvm.h.
1385   Add liblvm2app Makefile installation targets.
1386   Add liblvm pkgconfig file.
1387   Use newly-independent LVM_LIBAPI in liblvm soname.  E.g. liblvm2app.so.2.1.
1388   Add an API version number, LVM_LIBAPI, to the VERSION string for liblvm.
1389   Pass a pointer to struct cmd_context to init_multiple_segtypes
1390   Return EINVALID_CMD_LINE not success when invalid VG name format is used.
1391   Remove unnecessary messages after vgcreate/vgsplit refactor (2.02.49).
1392   Add log_errno to set a specific errno and replace log_error in due course.
1393   Change create_toolcontext to still return an object if it fails part-way.
1394   Add EUNCLASSIFIED (-1) as the default LVM errno code.
1395   Store any errno and error messages issued while processing each command.
1396   Use log_error macro consistently throughout in place of log_err.
1397
1398 Version 2.02.49 - 15th July 2009
1399 ================================
1400   Add readonly locking type to replace implementation of --ignorelockingfailure.
1401   Exclude VG_GLOBAL from vg_write_lock_held so scans open devs read-only again.
1402   Add unit test case for liblvm VG create/delete APIs.
1403   Add liblvm APIs to implement creation and deletion of VGs.
1404   Initialize cmd->cmd_line to "liblvm" in new liblvm library.
1405   Place handles to liblvm objects for pv, vg, lv, lvseg, pvseg inside lvm.h.
1406   Refactor vgsplit and vgextend to remove READ_REQUIRE_RESIZEABLE flag.
1407   Use _exit() not exit() after forking to avoid flushing libc buffers twice.
1408   Add cast to log_info arg in _find_labeller to avoid Sparc64 warning.
1409   Make cmd->cmd_line const.
1410   Fix dev name mismatch in vgcreate man page example.
1411   Refactor vg_remove_single for use in liblvm.
1412   Make all tools use consistent lock ordering obtaining VG_ORPHAN lock second.
1413   Check md devices for a partition table during device scan.
1414   Add extended device (blkext) and md partition (mdp) types to filters.
1415   Make text metadata read errors for segment areas more precise.
1416   Fix text segment metadata read errors to mention correct segment name.
1417   Include segment and LV names in text segment import error messages.
1418   Add parent node to config_node structure.
1419   Update vgsplit and vgcreate to call new vg_create and 'set' functions.
1420   Change vg_create to take minimal parameters, obtain a lock, and return vg_t.
1421   Refactor vgchange extent_size, max_lv, max_pv, and alloc_policy for liblvm.
1422   Update t-vgcreate-usage.sh to test for default vg properties.
1423   Fix memory leak in vgsplit when re-reading the vg.
1424   Make various exit/cleanup paths more robust after lvm init failures.
1425   Use LCK_NONBLOCK implicitly instead of explicit vg_read() flag.
1426   Remove unnecessary locking and existence tests from new vg_read() interface.
1427   Permit several segment types to be registered by a single shared object.
1428   Update the man pages to document size units uniformly.
1429   Allow commandline sizes to be specified in terms of bytes and sectors.
1430   Update 'md_chunk_alignment' to use stripe-width to align PV data area.
1431   Update test/t-inconsistent-metadata.sh to match new vg_read interface.
1432   Add lvmcache_init() to polldaemon initialization.
1433   Convert tools to use new vg_read / vg_read_for_update.
1434   Fix segfault in vg_release when vg->cmd is NULL.
1435
1436 Version 2.02.48 - 30th June 2009
1437 ================================
1438   Abort if automatic metadata correction fails when reading VG to update it.
1439   Explicitly request fallback to default major number in device mapper.
1440   Ignore suspended devices during repair.
1441   Call vgreduce --removemissing automatically to fix missing PVs in dmeventd.
1442   Suggest using lvchange --resync when adding leg to not-yet-synced mirror.
1443   Destroy toolcontext on clvmd exit to avoid memory pool leaks.
1444   Fix lvconvert not to poll mirror if no conversion in progress.
1445   Fix memory leaks in toolcontext error path.
1446   Reinstate partial activation support in clustered mode. (2.02.40)
1447   Allow metadata correction even when PVs are missing.
1448   Use 'lvm lvresize' instead of 'lvresize' in fsadm.
1449   Do not use '-n' realine option in fsadm for busybox compatiblity.
1450   Add vg_lock_newname() library function for vgrename, vgsplit and vgcreate.
1451   Round up requested readahead to at least one page and print warning.
1452   Try to repair vg before actual vgremove when force flag provided.
1453   Fix possible double release of VG after recovery.
1454   Add parameter to process_each_vg specifying what to do with inconsistent VG.
1455   Unify error messages when processing inconsistent volume group.
1456   Use lvconvert --repair instead of vgreduce in mirror dmeventd DSO.
1457   Introduce lvconvert --use_policies (repair policy according to lvm.conf).
1458   Update clvmd-corosync to match new corosync API.
1459   Fix lib Makefile to include any shared libraries in default target.
1460   Fix rename of active snapshot with virtual origin.
1461   Fix convert polling to ignore LV with different UUID.
1462   Cache underlying device readahead only before activation calls.
1463   Fix segfault when calculating readahead on missing device in vgreduce.
1464   Remove verbose 'visited' messages.
1465   Handle multi-extent mirror log allocation when smallest PV has only 1 extent.
1466   Add LSB standard headers and functions (incl. reload) to clvmd initscript.
1467   When creating new LV, double-check that name is not already in use.
1468   Remove /dev/vgname/lvname symlink automatically if LV is no longer visible.
1469   Rename internal vorigin LV to match visible LV.
1470   Suppress 'removed' messages displayed when internal LVs are removed.
1471   Fix lvchange -a and -p for sparse LVs.
1472   Fix lvcreate --virtualsize to activate the new device immediately.
1473   Make --snapshot optional with lvcreate --virtualsize.
1474   Generalise --virtualoriginsize to --virtualsize.
1475   Skip virtual origins in process_each_lv_in_vg() without --all.
1476   Fix counting of virtual origin LVs in vg_validate.
1477   Attempt to load dm-zero module if zero target needed but not present.
1478
1479 Version 2.02.47 - 22nd May 2009
1480 ===============================
1481   Rename liblvm.so to liblvm2app.so and use configure --enable-applib.
1482   Reinstate version in liblvm2cmd.so soname. (2.02.44)
1483
1484 Version 2.02.46 - 21st May 2009
1485 ===============================
1486   Inherit readahead setting from underlying devices during activation.
1487   Detect LVs active on remote nodes by querying locks if supported.
1488   Enable online resizing of mirrors.
1489   Use suspend with flush when device size was changed during table preload.
1490   Implement query_resource_fn for cluster_locking.
1491   Support query_resource_fn in locking modules.
1492   Introduce CLVMD_CMD_LOCK_QUERY command for clvmd.
1493   Fix pvmove to revert operation if temporary mirror creation fails.
1494   Fix metadata export for VG with missing PVs.
1495   Add vgimportclone and install it and the man page by default.
1496   Force max_lv restriction only for newly created LV.
1497   Remove unneeded import parameter from lv_create_empty.
1498   Merge lv_is_displayable and lv_is_visible functions.
1499   Introduce lv_set_visible & lv_set_hidden functions.
1500   Fix lv_is_visible to handle virtual origin.
1501   Introduce link_lv_to_vg and unlink_lv_from_vg functions.
1502   Remove lv_count from VG and use counter function instead.
1503   Fix snapshot segment import to not use duplicate segments & replace.
1504   Do not query nonexistent devices for readahead.
1505   Remove NON_BLOCKING lock flag from tools and set a policy to auto-set.
1506   Remove snapshot_count from VG and use function instead.
1507   Fix first_seg() call for empty segment list.
1508   Add install_lvm2 makefile target to install only the LVM2 components.
1509   Reject missing PVs from allocation in toollib.
1510   Fix PV datalignment for values starting prior to MDA area. (2.02.45)
1511   Add sparse devices: lvcreate -s --virtualoriginsize (hidden zero origin).
1512   Fix minimum width of devices column in reports.
1513   Add lvs origin_size field.
1514   Fix linux configure --enable-debug to exclude -O2.
1515   Implement lvconvert --repair for repairing partially-failed mirrors.
1516   Fix vgreduce --removemissing failure exit code.
1517   Fix remote metadata backup for clvmd.
1518   Introduce unlock_and_release_vg macro.
1519   Introduce vg_release() to be called to free every struct volume_group.
1520   Alloc PV internal structure from VG mempool if possible.
1521   Fix metadata backup to run after vg_commit always.
1522   Tidy clvmd volume lock cache functions.
1523   Fix pvs report for orphan PVs when segment attributes are requested.
1524   Fix pvs -a output to not read volume groups from non-PV devices.
1525   Add MMC (mmcblk) device type to filters.
1526   Introduce memory pools per volume group (to reduce memory for large VGs).
1527   Use copy of PV structure when manipulating global PV lists.
1528   Always return exit error status when locking of volume group fails.
1529   Fix mirror log convert validation question.
1530   Avoid referencing files from DESTDIR during build process.
1531   Avoid creating some static libraries unless configured --enable-static_link.
1532   Enable use of cached metadata for pvs and pvdisplay commands.
1533   Add missing 'device-mapper' internal subdir build dependency.
1534   Fix memory leak in mirror allocation code.
1535   Save and restore the previous logging level when log level is changed.
1536   Fix error message when archive initialization fails.
1537   Make sure clvmd-corosync releases the lockspace when it exits.
1538   Fix segfault for vgcfgrestore on VG with missing PVs.
1539   Block SIGTERM & SIGINT in clvmd subthreads.
1540   Detect and conditionally wipe swapspace signatures in pvcreate.
1541   Fix maximal volume count check for snapshots if max_lv set for volume group.
1542   Fix lvcreate to remove unused cow volume if the snapshot creation fails.
1543   Fix error messages when PV uuid or pe_start reading fails.
1544   Build new liblvm application-level library.
1545   Rename liblvm.a to liblvm-internal.a.
1546   Flush memory pool and fix locking in clvmd refresh and backup command.
1547   Fix unlocks in clvmd-corosync. (2.02.45)
1548   Fix error message when adding metadata directory to internal list fails.
1549   Fix size and error message of memory allocation at backup initialization.
1550   Remove old metadata backup file after renaming VG.
1551   Restore log_suppress state when metadata backup file is up-to-date.
1552
1553 Version 2.02.45 - 3rd March 2009
1554 ================================
1555   Avoid scanning empty metadata areas for VG names.
1556   Attempt proper clean up in child before executing new binary in exec_cmd().
1557   Do not scan devices if reporting only attributes from PV label.
1558   Use pkgconfig to obtain corosync library details during configuration.
1559   Fix error returns in clvmd-corosync interface to DLM.
1560   Add --refresh to vgchange and vgmknodes man pages.
1561   Pass --test from lvresize to fsadm as --dry-run.
1562   Supply argv[] list to exec_cmd() to allow for variable number of parameters.
1563   Prevent fsadm from checking mounted filesystems.
1564   No longer treats any other key as 'no' when prompting in fsadm.
1565   Tidy fsadm command line processing.
1566   Add lib/lvm.h and lib/lvm_base.c for the new library interface.
1567   Move tools/version.h to lib/misc/lvm-version.h.
1568   Split LVM_VERSION into MAJOR, MINOR, PATCHLEVEL, RELEASE and RELEASE_DATE.
1569   Add system_dir parameter to create_toolcontext().
1570   Add --dataalignment to pvcreate to specify alignment of data area.
1571   Exclude LCK_CACHE locks from _vg_lock_count, fixing interrupt unblocking.
1572   Provide da and mda locations in debug message when writing text format label.
1573   Mention the restriction on file descriptors at invocation on the lvm man page.
1574   Index cached vgmetadata by vgid not vgname to cope with duplicate vgnames.
1575   No longer require kernel and metadata major numbers to match.
1576   Add a fully-functional get_cluster_name() to clvmd corosync interface.
1577   Remove duplicate cpg_initialize from clvmd startup.
1578   Add option to /etc/sysconfig/cluster to select cluster type for clvmd.
1579   Allow clvmd to start up if its lockspace already exists.
1580   Separate PV label attributes which do not need parse metadata when reporting.
1581   Remove external dependency on the 'cut' command from fsadm.
1582   Fix pvs segfault when pv mda attributes requested for not available PV.
1583   Add fsadm support for reszing ext4 filesysystems.
1584   Move locking_type reading inside init_locking().
1585   Rename get_vgs() to get_vgnames() and clarify related error messages.
1586   Allow clvmd to be built with all cluster managers & select one on cmdline.
1587   Mention --with-clvmd=corosync in ./configure.
1588   Replace internal vg_check_status() implementation.
1589   Rename vg_read() to vg_read_internal().
1590
1591 Version 2.02.44 - 26th January 2009
1592 ===================================
1593   Fix --enable-static_link after the recent repository changes.
1594   Add corosync/DLM cluster interface to clvmd.
1595   Add --nameprefixes, --unquoted, --rows to pvs, vgs, lvs man pages.
1596   Fix lvresize size conversion for fsadm when block size is not 1K.
1597   Fix pvs segfault when run with orphan PV and some VG fields.
1598   Display a 'dev_size' of zero for missing devices in reports.
1599   Add pv_mda_size to pvs and vg_mda_size to vgs.
1600   Fix lvmdump /sys listing to include virtual devices directory.
1601   Add "--refresh" functionality to vgchange and vgmknodes.
1602   Avoid exceeding LV size when wiping device.
1603   Calculate mirror log size instead of using 1 extent.
1604   Ensure requested device number is available before activating with it.
1605   Fix incorrect exit status from 'help <command>'.
1606   Fix vgrename using UUID if there are VGs with identical names.
1607   Fix segfault when invalid field given in reporting commands.
1608   Move is_static from cmd to global is_static().
1609   Refactor init_lvm() for lvmcmdline and clvmd.
1610   Add liblvm interactive test infrastructure to build.
1611   Add skeleton lvm2.h file in preparation for a shared library interface.
1612   Use better random seed value in temp file creation.
1613   Add read_urandom to read /dev/urandom. Use in uuid calculation.
1614   Use displayable_lvs_in_vg and lv_is_displayable for consistency throughout.
1615   Fix race in vgcreate that would result in second caller overwriting first.
1616   Fix uninitialised lv_count in vgdisplay -c.
1617   Don't skip updating pvid hash when lvmcache_info struct got swapped.
1618   Add tinfo to termcap search path for pld-linux.
1619   Fix startup race in clvmd.
1620   Generate Red Hat clvmd startup script at config time with correct paths.
1621   Fix clvmd & dmeventd builds after tree restructuring.
1622   Cope with snapshot dependencies when removing a whole VG with lvremove.
1623   Make man pages and tool help text consistent using | for alternative options.
1624
1625 Version 2.02.43 - 10th November 2008
1626 ====================================
1627   Merge device-mapper into the lvm2 tree.
1628   Correct prototype for --permission on lvchange and lvcreate man pages.
1629   Exit with non-zero status from vgdisplay if couldn't show any requested VG.
1630   Move list.c into libdevmapper and rename functions.
1631   Rename a couple of variables that matched function names.
1632   Use simplified x.y.z version number in libdevmapper.pc.
1633   Remove ancient debian directory.
1634   Split out lvm-logging.h from log.h and lvm-globals.[ch] from log.[ch].
1635
1636 Version 2.02.42 - 26th October 2008
1637 ===================================
1638   Accept locking fallback_to_* options in the global section as documented.
1639   Fix temp table activation in mirror conversions not to happen in other cmds.
1640   Fix temp table in mirror conversions to use always-present error not zero.
1641
1642 Version 2.02.41 - 17th October 2008
1643 ===================================
1644   Use temp table to set device size when converting mirrors.
1645   In resume_mirror_images replace activate_lv with resume_lv as workaround.
1646   Avoid overwriting in-use on-disk text metadata by forgetting MDA_HEADER_SIZE.
1647   Fix snapshot monitoring library to not cancel monitoring invalid snapshot.
1648   Generate man pages from templates and include version.
1649   Add usrlibdir and usrsbindir to configure.
1650   Fix conversion of md chunk size into sectors.
1651   Free text metadata buffer after a failure writing it.
1652   Fix misleading error message when there are no allocatable extents in VG.
1653   Fix handling of PVs which reappeared with old metadata version.
1654   Fix mirror DSO to call vgreduce with proper parameters.
1655   Fix validation of --minor and --major in lvcreate to require -My always.
1656   Fix release: clvmd build, vgreduce consolidate & tests, /dev/ioerror warning.
1657
1658 Version 2.02.40 - 19th September 2008
1659 =====================================
1660   Allow lvremove to remove LVs from VGs with missing PVs.
1661   In VG with PVs missing, by default allow activation of LVs that are complete.
1662   Track PARTIAL_LV and MISSING_PV flags internally.
1663   Require --force with --removemissing in vgreduce to remove partial LVs.
1664   No longer write out PARTIAL flag into metadata backups.
1665   Treat new default activation/missing_stripe_filler "error" as an error target.
1666   Remove internal partial_mode.
1667   Add devices/md_chunk_alignment to lvm.conf.
1668   Pass struct physical_volume to pe_align and adjust for md chunk size.
1669   Store sysfs location in struct cmd_context.
1670   Avoid shuffling remaining mirror images when removing one, retaining primary.
1671   Add missing LV error target activation in _remove_mirror_images.
1672   Prevent resizing an LV while lvconvert is using it.
1673   Avoid repeatedly wiping cache while VG_GLOBAL is held in vgscan & pvscan.
1674   Fix pvresize to not allow resize if PV has two metadata areas.
1675   Fix setting of volume limit count if converting to lvm1 format.
1676   Fix vgconvert logical volume id metadata validation.
1677   Fix lvmdump metadata gather option (-m) to work correctly.
1678   Fix allocation bug in text metadata format write error path.
1679   Fix vgcfgbackup to properly check filename if template is used.
1680   configure aborts if lcov or genhtml are missing with --enable-profiling
1681   vgremove tries to remove lv snapshot first.
1682   Added function lv_remove_with_dependencies().
1683   Improve file descriptor leak detection to display likely culprit and filename.
1684   Change clustered mirror kernel module name from cmirror to dm-log-clustered.
1685   Avoid looping forever in _pv_analyze_mda_raw used by pvck.
1686   Change lvchange exit status to indicate if any part of the operation failed.
1687   Fix pvchange and pvremove to handle PVs without mdas.
1688   Refactor _text_pv_read and always return mda list if requested.
1689   Fix configure to work w/o readline unless --enable-readline used. (2.02.39)
1690   Remove is_lvm_partition template which has not yet been coded.
1691   Refactor pvcreate to separate parameter parsing from validation logic.
1692   Check for label_write() failure in _text_pv_write().
1693   Add pvcreate tests and update vgsplit tests to handle lvm1 and lvm2 metadata.
1694   Fix pvchange -M1 -u to preserve existing extent locations when there's a VG.
1695   Cease recognising snapshot-in-use percentages returned by early devt kernels.
1696   Add backward-compatible flags field to on-disk format_text metadata.
1697   Fix dmeventd monitoring libraries to link against liblvm2cmd again. (2.02.39)
1698
1699 Version 2.02.39 - 27th June 2008
1700 ================================
1701   Enable readline by default if available.
1702   Update autoconf to 2008-01-16.
1703   Add $DISTCLEAN_DIRS to make.tmpl.in.
1704   Create coverage reports with --enable-profiling and make lcov or lcov-dated.
1705   Fix up cache for PVs without mdas after consistent VG metadata is processed.
1706   Update validation of safe mirror log type conversions in lvconvert.
1707   Fix lvconvert to disallow snapshot and mirror combinations.
1708   Fix reporting of LV fields alongside unallocated PV segments.
1709   Add --unquoted and --rows to reporting tools.
1710   Add and use uninitialized_var() macro to suppress invalid compiler warnings.
1711   Introduce enum for md minor sb version to suppress compiler warning.
1712   Avoid undefined return value after _memlock manipulation in lvm2_run.
1713   Avoid link failure if configured without --enable-cmdlib or --enable-readline.
1714   Make clvmd return at once if other nodes down in a gulm or openais cluster.
1715   Fix and improve readahead 'auto' calculation for stripe_size.
1716   Fix lvchange output for -r auto setting if auto is already set.
1717   Add test case for readahead.
1718   Avoid ambiguous use of identifier error_message_produced.
1719   Begin syncing configure.in for merge/unification with device-mapper.
1720   Fix add_mirror_images not to dereference uninitialized log_lv upon failure.
1721   Don't call openlog for every debug line output by clvmd.
1722   Add --force to lvextend and lvresize.
1723   Fix vgchange not to activate component mirror volumes directly.
1724   Fix test directory clean up in make distclean.
1725
1726 Version 2.02.38 - 11th June 2008
1727 ================================
1728   Fix tracking of validity of PVs with no mdas in lvmcache.
1729   Fix return values for reporting commands when run with no PVs, LVs, or VGs.
1730   Add omitted unlock_vg() call when sigint_caught() during vg processing.
1731   Fix free_count when reading pool metadata.
1732   Fix segfault when using pvcreate on a device containing pool metadata.
1733   Fix segfault after _free_vginfo by remembering to remove vginfo from list.
1734   Tweak detection of invalid fid after changes to PVs in VG in _vg_read.
1735   Revert assuming precommitted metadata is live when activating (unnecessary).
1736   Drop cached metadata for disappearing VG in vgmerge.
1737   In script-processing mode, stop if any command fails.
1738   Warn if command exits with non-zero status code without a prior log_error.
1739   Check lv_count in vg_validate.
1740   Add --nameprefixes to reporting tools for field name prefix output format.
1741
1742 Version 2.02.37 - 6th June 2008
1743 ===============================
1744   Make clvmd-cman use a hash rather than an array for node updown info.
1745   Correct config file line numbers in messages when parsing comments.
1746   Drop cached metadata when renaming a VG.
1747   Allow for vginfo changing during _vg_read.
1748   Decode numbers in clvmd debugging output.
1749   Add missing deactivation after activation failure in lvcreate -Zy.
1750   When activating, if precommitted metadata is still cached, assume it's live.
1751   When removing LV symlinks, skip any where the VG name is not determined.
1752   Drop metadata cache if update fails in vg_revert or vg_commit.
1753   Avoid spurious duplicate VG messages referring to VGs that are gone.
1754   Drop dev_name_confirmed error message to debug level.
1755   Fix setpriority error message to signed int.
1756   Temporarily disable dmeventd mirror monitoring during lvchange --resync.
1757   Refactor some vginfo manipulation code.
1758   Add assertions to trap deprecated P_ and V_ lock usage.
1759   Add missing mutex around clvmd lvmcache_drop_metadata library call.
1760   Fix uninitialised mutex in clvmd if all daemons are not running at startup.
1761   Avoid using DLM locks with LCK_CACHE type P_ lock requests.
1762   When asked to drop cached committed VG metadata, invalidate cached PV labels.
1763   Drop metadata cache before writing precommitted metadata instead of after.
1764   Don't touch /dev in vgrename if activation is disabled.
1765
1766 Version 2.02.36 - 29th April 2008
1767 =================================
1768   Fix fsadm.sh to work with older blockdev, blkid & readlink binaries.
1769   Fix lvresize to pass new size to fsadm when extending device.
1770   Remove unused struct in clvmd-openais, and use correct node count.
1771   Fix nodes list in clvmd-openais, and allow for broadcast messages.
1772   Exclude VG_GLOBAL from internal concurrent VG lock counter.
1773   Fix vgsplit internal counting of snapshot LVs.
1774   Fix vgmerge snapshot_count when source VG contains snapshots.
1775   Simplify clvmd-openais by using non-async saLckResourceLock.
1776   Fix internal LV counter when a snapshot is removed.
1777   Fix metadata corruption writing lvm1-formatted metadata with snapshots.
1778   Fix lvconvert -m0 allocatable space check.
1779
1780 Version 2.02.35 - 15th April 2008
1781 =================================
1782   Drop cached VG metadata before and after committing changes to it.
1783   Rename P_global to P_#global.
1784   Don't attempt remote metadata backups of non-clustered VGs. (2.02.29)
1785   Don't store fid in VG metadata cache to avoid clvmd segfault. (2.02.34)
1786   Update vgsplit tests to verify loosening of active LV restriction.
1787   Update vgsplit to only restrict split with active LVs involved in split.
1788   Add lv_is_active() to determine whether an lv is active.
1789
1790 Version 2.02.34 - 10th April 2008
1791 =================================
1792   Improve preferred_names lvm.conf example.
1793   Fix vgdisplay 'Cur LV' field to match lvdisplay output.
1794   Fix lv_count report field to exclude hidden LVs.
1795   Add vg_is_clustered() helper function.
1796   Fix vgsplit to only move hidden 'snapshotN' LVs when necessary.
1797   Update vgsplit tests for lvnames on the cmdline.
1798   Update vgsplit man page to reflect lvnames on the cmdline.
1799   Update vgsplit to take "-n LogicalVolumeName" on the cmdline.
1800   Use clustered mirror log with pvmove in clustered VGs, if available.
1801   Fix some pvmove error status codes.
1802   Fix vgsplit error paths to release vg_to lock.
1803   Indicate whether or not VG is clustered in vgcreate log message.
1804   Mention default --clustered setting in vgcreate man page.
1805   Add config file overrides to clvmd when it reads the active LVs list.
1806   Fix vgreduce to use vg_split_mdas to check sufficient mdas remain.
1807   Add (empty) orphan VGs to lvmcache during initialisation.
1808   Fix orphan VG name used for format_pool.
1809   Create a fid for internal orphan VGs.
1810   Update lvmcache VG lock state for all locking types now.
1811   Fix output if overriding command_names on cmdline.
1812   Add detection of clustered mirror log capability.
1813   Add check to vg_commit() ensuring VG lock held before writing new VG metadata.
1814   Add validation of LV name to pvmove -n.
1815   Make clvmd refresh the context correctly when lvm.conf is updated.
1816   Add some basic internal VG lock validation.
1817   Add per-command flags to control which commands use the VG metadata cache.
1818   Fix vgsplit locking of new VG (2.02.30).
1819   Avoid erroneous vgsplit error message for new VG. (2.02.29)
1820   Suppress duplicate message when lvresize fails because of invalid vgname.
1821   Cache VG metadata internally while VG lock is held.
1822   Fix redundant lvresize message if vg doesn't exist.
1823   Fix another allocation bug with clvmd and large node IDs.
1824   Add find_lv_in_lv_list() and find_pv_in_pv_list().
1825   Fix uninitialised variable in clvmd that could cause odd hangs.
1826   Add vgmerge tests.
1827   Add pvseg_is_allocated() for identifying a PV segment allocated to a LV.
1828   Add list_move() for moving elements from one list to another.
1829   Add 'is_reserved_lvname()' for identifying hidden LVs.
1830   Correct command name in lvmdiskscan man page.
1831   clvmd no longer crashes if it sees nodeids over 50.
1832   Fix potential deadlock in clvmd thread handling.
1833   Refactor text format initialisation into _init_text_import.
1834   Escape double quotes and backslashes in external metadata and config data.
1835   Add functions for escaping double quotes in strings.
1836   Rename count_chars_len to count_chars.
1837   Use return_0 in a couple more places.
1838   Correct a function name typo in _line_append error message.
1839   Include limits.h in clvmd so it compiles with newer headers.
1840   Add VirtIO disks (virtblk) to filters.
1841   Fix resetting of MIRROR_IMAGE and VISIBLE_LV after removal of LV. (2.02.30)
1842   Fix remove_layer_from_lv to empty the LV before removing it. (2.02.30)
1843   Add missing no-longer-used segs_using_this_lv test to check_lv_segments.
1844   Remove redundant non-NULL tests before calling free in clvmd.c.
1845   Avoid a compiler warning: make is_orphan's parameter const.
1846   Fix lvconvert detection of mirror conversion in progress. (2.02.30)
1847   Avoid automatic lvconvert polldaemon invocation when -R specified. (2.02.30)
1848   Fix 'pvs -a' to detect VGs of PVs without metadata areas.
1849   Divide up internal orphan volume group by format type.
1850   Update usage message for clvmd.
1851   Fix clvmd man page not to print <br> and clarified debug options.
1852   Fix lvresize to support /dev/mapper prefix in the LV name.
1853   Fix unfilled parameter passed to fsadm from lvresize.
1854   Update fsadm to call lvresize if the partition size differs (with option -l).
1855   Fix fsadm to support VG/LV names.
1856
1857 Version 2.02.33 - 31st January 2008
1858 ===================================
1859   Fix mirror log name construction during lvconvert. (2.02.30)
1860   Make monitor_dev_for_events recurse through the stack of LVs.
1861   Clean up some more compiler warnings.
1862   Some whitespace tidy-ups.
1863   Use stack return macros throughout.
1864   Rely upon internally-cached PV labels while corresponding VG lock is held.
1865
1866 Version 2.02.32 - 29th January 2008
1867 ===================================
1868   Fix two check_lv_segments error messages to show whole segment.
1869   Refactor mirror log attachment code.
1870   Fix internal metadata corruption in lvchange --resync. (2.02.30)
1871   Fix new parameter validation in vgsplit and test mode. (2.02.30)
1872   Remove redundant cnxman-socket.h file from clvmd directory.
1873   Fix pvs, vgs, lvs error exit status on some error paths.
1874
1875 Version 2.02.31 - 19th January 2008
1876 ===================================
1877   Fix lvcreate --nosync not to wait for non-happening sync. (2.02.30)
1878   Add very_verbose lvconvert messages.
1879   Avoid readahead error message with default setting of lvcreate -M1. (2.02.29)
1880
1881 Version 2.02.30 - 17th January 2008
1882 ===================================
1883   Set default readahead to twice maximium stripe size.
1884   Reinstate VG extent size and stripe size defaults (halved). (2.02.29)
1885   Add lists of stacked LV segments using each LV to the internal metadata.
1886   Change vgsplit -l (for unimplemented --list) into --maxlogicalvolumes.
1887   Fix process_all_pvs to detect non-orphans with no MDAs correctly.
1888   Don't use block_on_error with mirror targets version 1.12 and above.
1889   Update vgsplit to accept vgcreate options when new VG is destination.
1890   Update vgsplit to accept existing VG as destination.
1891   lvconvert waits for completion of initial sync by default.
1892   Refactor vgcreate for parameter validation and add tests.
1893   Add new convert_lv field to lvs output.
1894   Print warning when lvm tools are running as non-root.
1895   Add snapshot dmeventd library (enables dmeventd snapshot monitoring).
1896   Prevent pvcreate from overwriting MDA-less PVs belonging to active VGs.
1897   Fix a segfault if using pvs with --all argument. (2.02.29)
1898   Update --uuid argument description in man pages.
1899   Fix vgreduce PV list processing not to process every PV in the VG. (2.02.29)
1900   Extend lvconvert to use polldaemon.
1901   Add support for stacked mirrors.
1902   Major restructuring of pvmove and lvconvert layer manipulation code.
1903   Replace tools/fsadm with scripts/fsadm.sh.
1904   Append fields to report/pvsegs_cols_verbose.
1905   Permit LV segment fields with PV segment reports.
1906   Add seg_start_pe and seg_pe_ranges to reports.
1907
1908 Version 2.02.29 - 5th December 2007
1909 ===================================
1910   Make clvmd backup vg metadata on remote nodes.
1911   Refactor pvmove allocation code.
1912   Decode cluster locking state in log message.
1913   Change file locking state messages from debug to very verbose.
1914   Fix --addtag to drop @ prefix from name.
1915   Stop clvmd going haywire if a pre_function fails.
1916   Convert some vg_reads into vg_lock_and_reads.
1917   Avoid nested vg_reads when processing PVs in VGs and fix associated locking.
1918   Accept sizes with --readahead argument.
1919   Store size arguments as sectors internally.
1920   Attempt to remove incomplete LVs with lvcreate zeroing/activation problems.
1921   Add read_ahead activation code.
1922   Add activation/readahead configuration option and FMT_RESTRICTED_READAHEAD.
1923   Extend readahead arg to accept "auto" and "none".
1924   Add lv_read_ahead and lv_kernel_read_ahead fields to reports and lvdisplay.
1925   Prevent lvconvert -s from using same LV as origin and snapshot.
1926   Fix human-readable output of odd numbers of sectors.
1927   Add pv_mda_free and vg_mda_free fields to reports for raw text format.
1928   Add LVM2 version to 'Generated by' comment in metadata.
1929   Show 'not usable' space when PV is too large for device in pvdisplay.
1930   Ignore and fix up any excessive device size found in metadata.
1931   Fix error message when fixing up PV size in lvm2 metadata (2.02.11).
1932   Fix orphan-related locking in pvdisplay and pvs.
1933   Fix missing VG unlocks in some pvchange error paths.
1934   Add some missing validation of VG names.
1935   Rename validate_vg_name() to validate_new_vg_name().
1936   Change orphan lock to VG_ORPHANS.
1937   Change format1 to use ORPHAN as orphan VG name.
1938   Convert pvchange, pvdisplay, pvscan to use is_orphan()
1939   Add is_orphan_vg() and change all hard-coded checks to use it.
1940   Detect md superblocks version 1.0, 1.1 and 1.2.
1941   Add _alloc_pv() and _free_pv() from _pv_create() code and fix error paths.
1942   Add pv_dev_name() to access PV device name.
1943   Add const attributes to pv accessor functions.
1944   Refactor vg_add_snapshot() and lv_create_empty().
1945   Handle new sysfs subsystem/block/devices directory structure.
1946   Run test with LVM_SYSTEM_DIR pointing to private root and /dev dirs.
1947   Fix a bug in lvm_dump.sh checks for lvm/dmsetup binaries.
1948   Fix underquotations in lvm_dump.sh.
1949   Refactor lvcreate stripe and mirror parameter validation.
1950   Print --help output to stdout, not stderr.
1951   After a cmdline processing error, don't print help text but suggest --help.
1952   Add %PVS extents option to lvresize, lvextend, and lvcreate.
1953   Add 'make check' to run tests in new subdirectory 'test'.
1954   Moved the obsolete test subdirectory to old-tests.
1955   Cope with relative paths in configure --with-dmdir.
1956   Remove no-longer-correct restrictions on PV arg count with stripes/mirrors.
1957   Fix strdup memory leak in str_list_dup().
1958   Link with -lpthread when static SELinux libraries require that.
1959   Detect command line PE values that exceed their 32-bit range.
1960   Include strerror string in dev_open_flags' stat failure message.
1961   Move guts of pvresize into library.
1962   Avoid error when --corelog is provided without --mirrorlog. (2.02.28)
1963   Correct --mirrorlog argument name in man pages (not --log).
1964   Clear MIRROR_NOTSYNCED LV flag when converting from mirror to linear.
1965   Modify lvremove to prompt for removal if LV active on other cluster nodes.
1966   Add '-f' to vgremove to force removal of VG even if LVs exist.
1967
1968 Version 2.02.28 - 24th August 2007
1969 ==================================
1970   Fix clvmd logging so you can get lvm-level debugging out of it.
1971   Introduce VG_GLOBAL lock type for vgscan/pvscan to trigger clvmd -R.
1972   Change locking_flags from int to uint32_t.
1973   Fix clvmd -R, so it fully refreshes the caches.
1974   Change lvconvert_mirrors to use mirror segtype not striped.
1975   Fix lvconvert_mirrors detection of number of existing mirrors.
1976   Clean up numerous compiler warnings that appeared in recent releases.
1977   Remove several unused parameters from _allocate().
1978   Only permit --force, --verbose and --debug arguments to be repeated.
1979   Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1.
1980   Move guts of vgremove and lvremove into library, including yes_no_prompt.
1981   Allow clvmd debug to be turned on in a running daemon using clvmd -d [-C].
1982   Update to use autoconf 2.61, while still supporting 2.57.
1983   Add more cluster info to lvmdump.
1984   Add further const attributes throughout.
1985   Add support for renaming mirrored LVs.
1986   Factor out core of lvrename() to library function.
1987   Add --mirrorlog argument to specify log type for mirrors.
1988   Don't attempt to monitor devices if their creation failed in _lv_activate.
1989   Don't leak a file descriptor in fcntl_lock_file() when fcntl fails.
1990   Replace create_dir with dm_create_dir.
1991   Detect stream write failure reliably with lvm_fclose using dm_fclose.
1992   Fix clvmd if compiled with gulm support. (2.02.26)
1993   Fix lvdisplay man page to say LV size is reported in sectors, not KB.
1994   Add vg_lock_and_read() external library function.
1995   Fix loading of persistent cache if cache_dir is used. (2.02.23)
1996   Reduce _compare_paths lstat error message from log_error to log_very_verbose.
1997   Create util.h with last_path_component replacing strdup + basename.
1998   Use gcc's printf attribute wherever possible.
1999   In _line_append, use "sizeof buf - 1" rather than equivalent "4095".
2000   Introduce is_same_inode macro, now including a comparison of st_dev.
2001   Don't leak a file descriptor in _lock_file() when flock fails.
2002   Add SUN's LDOM virtual block device (vdisk) and ps3disk to filters.
2003   Split metadata-external.h out from metadata.h for the tools to use.
2004
2005 Version 2.02.27 - 17th July 2007
2006 ================================
2007   Fix snapshot cow area deactivation if origin is not active. (2.02.13)
2008   Fix configure libdevmapper.h check when --with-dmdir is used.
2009   Turn _add_pv_to_vg() into external library function add_pv_to_vg().
2010   Add pv_by_path() external library function.
2011   Tidy clvmd-openais of redundant bits, and improve an error report.
2012   Cope with find_seg_by_le() failure in check_lv_segments().
2013   Call dev_iter_destroy() if _process_all_devs() is interrupted by sigint.
2014   Add vg_mda_count and pv_mda_count columns to reports.
2015   Fix dumpconfig to use log_print instead of stdout directly.
2016   Remove unused parameter 'fid' from _add_pv_to_vg.
2017   Add kernel and device-mapper targets versions to lvmdump.
2018   Replace BSD (r)index with C89 str(r)chr.
2019   Handle vgsplit of an entire VG as a vgrename.
2020   Reinitialise internal lvmdiskscan variables when called repeatedly.
2021   Fix missing lvm_shell symbol in lvm2cmd library. (2.02.23)
2022   Add vg_status function and clean up vg->status in tools directory.
2023   Add --ignoremonitoring to disable all dmeventd interaction.
2024   Remove get_ prefix from get_pv_* functions.
2025   clvmd-openais now uses cpg_local_get() to get nodeid, rather than Clm.
2026   Print warnings to stderr instead of stdout.
2027
2028 Version 2.02.26 - 15th June 2007
2029 ================================
2030   Update vgcfgrestore man page.
2031   Allow keyboard interrupt during user prompts when appropriate.
2032   Remove unused clvmd system-lv code.
2033   Replace many physical_volume struct dereferences with new get_pv_* functions.
2034   Suppress a benign compile-time warning.
2035   Convert find_pv_in_vg_by_uuid and pv_create to use PV handles.
2036   Add wrappers to some functions in preparation for external LVM library.
2037   Add -f to vgcfgrestore to list metadata backup files.
2038   Add vg_check_status to consolidate vg status checks and error messages.
2039   Add pvdisplay --maps implementation.
2040   Remove unsupported LVM1 options from vgcfgrestore man page.
2041   Update vgcfgrestore man page to show mandatory VG name.
2042   Update vgrename man page to include UUID and be consistent with lvrename.
2043   Add (experimental) OpenAIS support to clvmd.
2044   Fix deactivation code to follow dependencies and remove symlinks.
2045   Fix and clarify vgsplit error messages.
2046   Fix a segfault in device_is_usable() if a device has no table.
2047   Add some more debug messages to clvmd startup.
2048   Misc clvmd cleanups.
2049
2050 Version 2.02.25 - 27th April 2007
2051 =================================
2052   Fix get_config_uint64() to read a 64-bit value not a 32-bit one.
2053   Add -Wformat-security and change one fprintf() to fputs().
2054   Move regex functions into libdevmapper.
2055   Change some #include lines to search only standard system directories.
2056   Add devices/preferred_names config regex list for displayed device names.
2057   Free a temporary dir string in fcntl_lock_file() after use.
2058   Fix a dm_pool_destroy() in matcher_create().
2059   Introduce goto_bad macro.
2060   Fix warnings on x86_64 involving ptrdiff_t in log_error messages.
2061   Update pvck to include text metadata area and record detection.
2062   Add support functions for token counting in config file extracts.
2063   Update pvck to read labels on disk, with --labelsector parameter.
2064   Add count_chars and count_chars_len functions.
2065   Add /sys/block listings to lvm_dump.sh.
2066   Make lvm_dump.sh list /dev recursively.
2067   Fix thread race in clvmd.
2068   Add scan_sector param to label_read and _find_labeller.
2069   Make clvmd cope with quorum devices.
2070   Add extra internal error checking to clvmd.
2071   Add dev_read_circular.
2072   Add pvck command stub.
2073   Update lists of attribute characters in man pages.
2074   Change cling alloc policy attribute character from 'C' to l'.
2075   Fix creation and conversion of mirrors with tags.
2076   Fix vgsplit for lvm1 format (set and validate VG name in PVs metadata).
2077   Split metadata areas in vgsplit properly.
2078
2079 Version 2.02.24 - 19th March 2007
2080 =================================
2081   Fix processing of exit status in init scripts
2082   Fix vgremove to require at least one vg argument.
2083   Fix reading of striped LVs in LVM1 format.
2084   Flag nolocking as clustered so clvmd startup sees clustered LVs. (2.02.10)
2085   Add a few missing pieces of vgname command line validation.
2086   Support the /dev/mapper prefix on most command lines.
2087
2088 Version 2.02.23 - 8th March 2007
2089 ================================
2090   Fix vgrename active LV check to ignore differing vgids.
2091   Remove no-longer-used uuid_out parameter from activation info functions.
2092   Fix two more segfaults if an empty config file section encountered.
2093   Move .cache file into a new /etc/lvm/cache directory by default.
2094   Add devices/cache_dir & devices/cache_file_prefix, deprecating devices/cache.
2095   Create directory in fcntl_lock_file() if required.
2096   Exclude readline support from lvm.static.
2097   Fix a leak in a reporting error path (2.02.19).
2098
2099 Version 2.02.22 - 13th February 2007
2100 ====================================
2101   Correct -b and -P on a couple of man pages.
2102   Add global/units to example.conf.
2103   Fix loading of segment_libraries.
2104   If a PV reappears after it was removed from its VG, make it an orphan.
2105   Don't update metadata automatically if VGIDs don't match.
2106   Fix some vgreduce --removemissing command line validation.
2107
2108 Version 2.02.21 - 30th January 2007
2109 ===================================
2110   Add warning to lvm2_monitoring_init_rhel4 if attempting to stop monitoring.
2111   Fix vgsplit to handle mirrors.
2112   Reorder fields in reporting field definitions.
2113   Fix vgs to treat args as VGs even when PV fields are displayed.
2114   Fix md signature check to handle both endiannesses.
2115
2116 Version 2.02.20 - 25th January 2007
2117 ===================================
2118   dmeventd mirror sets ignore_suspended_devices and avoids scanning mirrors.
2119   Add devices/ignore_suspended_devices to ignore suspended dm devices.
2120   Add some missing close() and fclose() return code checks.
2121   Fix exit statuses of reporting tools (2.02.19).
2122   Add init script for dmeventd monitoring.
2123   lvm.static no longer interacts with dmeventd unless explicitly asked to.
2124   Add field definitions to report help text.
2125   Remove unnecessary cmd arg from target_*monitor_events().
2126   Add private variable to dmeventd shared library interface.
2127   Long-lived processes write out persistent dev cache in refresh_toolcontext().
2128   Fix refresh_toolcontext() always to wipe persistent device filter cache.
2129   Add is_long_lived to toolcontext.
2130   Add --clustered to man pages.
2131   Streamline dm_report_field_* interface.
2132   Change remaining dmeventd terminology 'register' to 'monitor'.
2133   Update reporting man pages.
2134   No longer necessary to specify alignment type for report fields.
2135
2136 Version 2.02.19 - 17th January 2007
2137 ===================================
2138   Fix a segfault if an empty config file section encountered.
2139   Move basic reporting functions into libdevmapper.
2140   Fix partition table processing after sparc changes (2.02.16).
2141   Fix cmdline PE range processing segfault (2.02.13).
2142   Some libdevmapper-event interface changes.
2143   Report dmeventd mirror monitoring status.
2144   Fix dmeventd mirror status line processing.
2145
2146 Version 2.02.18 - 11th January 2007
2147 ===================================
2148   Revised libdevmapper-event interface for dmeventd.
2149   Remove dmeventd mirror status line word limit.
2150   Use CFLAGS when linking so mixed sparc builds can supply -m64.
2151   Prevent permission changes on active mirrors.
2152   Print warning instead of error message if lvconvert cannot zero volume.
2153   Add snapshot options to lvconvert man page.
2154   dumpconfig accepts a list of configuration variables to display.
2155   Change dumpconfig to use --file to redirect output to a file.
2156   Avoid vgreduce error when mirror code removes the log LV.
2157   Remove 3 redundant AC_MSG_RESULTs from configure.in.
2158   Free memory in _raw_read_mda_header() error paths.
2159   Fix ambiguous vgsplit error message for split LV.
2160   Fix lvextend man page typo.
2161   Add configure --with-dmdir to compile against a device-mapper source tree.
2162   Use no flush suspending for mirrors.
2163   Add dmeventd_mirror register_mutex, tidy initialisation & add memlock.
2164   Fix create mirror with name longer than 22 chars.
2165   Fix some activate.c prototypes when compiled without devmapper.
2166   Fix dmeventd mirror to cope if monitored device disappears.
2167
2168 Version 2.02.17 - 14th December 2006
2169 ====================================
2170   Add missing pvremove error message when device doesn't exist.
2171   When lvconvert allocates a mirror log, respect parallel area constraints.
2172   Use loop to iterate through the now-ordered policy list in _allocate().
2173   Check for failure to allocate just the mirror log.
2174   Introduce calc_area_multiple().
2175   Support mirror log allocation when there is only one PV: area_count now 0.
2176   Fix detection of smallest area in _alloc_parallel_area() for cling policy.
2177   Add manpage entry for clvmd -T
2178   Fix gulm operation of clvmd, including a hang when doing lvchange -aey
2179   Fix hang in clvmd if a pre-command failed.
2180
2181 Version 2.02.16 - 1st December 2006
2182 ===================================
2183   Fix VG clustered read locks to use PR not CR.
2184   Adjust some alignments for ia64/sparc.
2185   Fix mirror segment removal to use temporary error segment.
2186   Always compile debug logging into clvmd.
2187   Add startup timeout to RHEL4 clvmd startup script.
2188   Add -T (startup timeout) switch to clvmd.
2189   Improve lvm_dump.sh robustness.
2190   Update lvm2create_initrd to support gentoo.
2191
2192 Version 2.02.15 - 21st November 2006
2193 ====================================
2194   Fix clvmd_init_rhel4 line truncation (2.02.14).
2195   Install lvmdump by default.
2196   Fix check for snapshot module when activating snapshot.
2197   Fix pvremove error path for case when PV is in use.
2198   Warn if certain duplicate config file entries are seen.
2199   Enhance lvm_dump.sh for sysreport integration and add man page.
2200   Fix --autobackup argument which could never disable backups.
2201   Fix a label_verify error path.
2202
2203 Version 2.02.14 - 10th November 2006
2204 ====================================
2205   Fix adjusted_mirror_region_size() to handle 64-bit size.
2206   Add some missing bounds checks on 32-bit extent counters.
2207   Add Petabyte and Exabyte support.
2208   Fix lvcreate error message when 0 extents requested.
2209   lvremove man page: volumes must be cluster inactive before being removed.
2210   Protect .cache manipulations with fcntl locking.
2211   Change .cache timestamp comparisons to use ctime.
2212   Fix mirror log LV writing to set all bits in whole LV.
2213   Fix clustered VG detection and default runlevels in clvmd_init_rhel4.
2214   Fix high-level free space check for partial allocations.
2215
2216 Version 2.02.13 - 27th October 2006
2217 ===================================
2218   Add couple of missing files to tools/Makefile CLEAN_TARGETS.
2219   When adding snapshot leave cow LV mapped device active after zeroing.
2220   Fix a clvmd debug message.
2221   Add dev_flush() to set_lv().
2222   Add lvchange --resync.
2223   Perform high-level free space check before each allocation attempt.
2224   Don't allow a node to remove an LV that's exclusively active on anther node.
2225   Cope if same PV is included more than once in cmdline PE range list.
2226   Set PV size to current device size if it is found to be zero.
2227   Add segment parameter to target_present functions.
2228
2229 Version 2.02.12 - 16th October 2006
2230 ===================================
2231   Fix pvdisplay to use vg_read() for non-orphans.
2232   Fall back to internal locking if external locking lib is missing or fails.
2233   Retain activation state after changing LV minor number with --force.
2234   Propagate clustered flag in vgsplit and require resizeable flag.
2235
2236 Version 2.02.11 - 12th October 2006
2237 ===================================
2238   Add clvmd function to return the cluster name. not used by LVM yet.
2239   Add cling allocation policy.
2240   Change _check_contiguous() to use _for_each_pv().
2241   Extend _for_each_pv() to allow termination without error.
2242   Abstract _is_contiguous().
2243   Remove duplicated pv arg from _check_contiguous().
2244   Accept regionsize with lvconvert.
2245   Add report columns with underscore before field names ending 'size'.
2246   Correct regionsize default on lvcreate man page (MB).
2247   Fix clvmd bug that could cause it to die when a node with a long name crashed.
2248   Add device size to text metadata.
2249   Fix format_text mda_setup pv->size and pv_setup pe_count calculations.
2250   Fix _for_each_pv() for mirror with core log.
2251   Add lvm_dump.sh script to create a tarball of debugging info from a system.
2252   Capture error messages in clvmd and pass them back to the user.
2253   Remove unused #defines from filter-md.c.
2254   Make clvmd restart init script wait until clvmd has died before starting it.
2255   Add -R to clvmd which tells running clvmds to reload their device cache.
2256   Add LV column to reports listing kernel modules needed for activation.
2257   Show available fields if report given invalid field. (e.g. lvs -o list)
2258   Add timestamp functions with --disable-realtime configure option.
2259   Add %VG, %LV and %FREE suffices to lvcreate/lvresize --extents arg.
2260   Fix two potential NULL pointer derefs in error cases in vg_read().
2261   Separate --enable-cluster from locking lib options in lvmconf.sh.
2262   Add a missing comma in lvcreate man page.
2263
2264 Version 2.02.10 - 19th September 2006
2265 =====================================
2266   Fix lvconvert mirror change case detection logic.
2267   Fix mirror log detachment so it correctly becomes a standalone LV.
2268   Extend _check_contiguous() to detect single-area LVs.
2269   Include mirror log (untested) in _for_each_pv() processing.
2270   Use MIRROR_LOG_SIZE constant.
2271   Remove struct seg_pvs from _for_each_pv() to generalise.
2272   Avoid adding duplicates to list of parallel PVs to avoid.
2273   Fix several incorrect comparisons in parallel area avoidance code.
2274   Fix segment lengths when flattening existing parallel areas.
2275   Log existing parallel areas prior to allocation.
2276   Fix mirror log creation when activation disabled.
2277   Don't attempt automatic recovery without proper locking.
2278   When using local file locking, skip clustered VGs.
2279   Add fallback_to_clustered_locking and fallback_to_local_locking parameters.
2280   lvm.static uses built-in cluster locking instead of external locking.
2281   Don't attempt to load shared libraries if built statically.
2282   Change default locking_lib to liblvm2clusterlock.so.
2283   Add skip_dev_dir() to process command line VGs.
2284   Stop clvmd complaining about nodes that have left the cluster.
2285   Move lvm_snprintf(), split_words() and split_dm_name() into libdevmapper.
2286   Add lvconvert man page.
2287   Add mirror options to man pages.
2288   Prevent mirror renames.
2289   Move CMDLIB code into separate file and record whether static build.
2290
2291 Version 2.02.09 - 17th August 2006
2292 ==================================
2293   Fix PE_ALIGN for pagesize over 32KB.
2294   Separate out LVM1_PE_ALIGN and pe_align().
2295   Add lvm_getpagesize wrapper.
2296   Add --maxphysicalvolumes to vgchange.
2297
2298 Version 2.02.08 - 15th August 2006
2299 ==================================
2300   Add checks for duplicate LV name, lvid and PV id before writing metadata.
2301   Report all sanity check failures, not just the first.
2302   Fix missing lockfs on first snapshot creation.
2303   Add unreliable --trustcache option to reporting commands.
2304   Fix locking for mimage removal.
2305   Fix clvmd_init_rhel4 'status' exit code.
2306
2307 Version 2.02.07 - 17th July 2006
2308 ================================
2309   Fix activation logic in lvchange --persistent.
2310   Don't ignore persistent minor numbers when activating.
2311   Use RTLD_GLOBAL when loading shared libraries.
2312   Add some forgotten memlock checks to _vg_read to protect against full scans.
2313   Add mutex to dmeventd_mirror to avoid concurrent execution.
2314   Fix vgreduce --removemissing to return success if VG is already consistent.
2315   Fix return code if VG specified on command line is not found.
2316   Fix PV tools to include orphaned PVs in default output again.
2317   Fixed unaligned access when using clvm.
2318   Fix an extra dev_close in a label_read error path.
2319   Append patches to commit emails.
2320   Fix target_register_events args.
2321   Prevent snapshots of mirrors.
2322   Add DISTCLEAN_TARGETS to make template for configure.h.
2323   More fixes to error paths.
2324   Fix lvcreate corelog validation.
2325   Add --config for overriding most config file settings from cmdline.
2326   Quote arguments when printing command line.
2327   Remove linefeed from 'initialising logging' message.
2328   Add 'Completed' debug message.
2329   Don't attempt library exit after reloading config files.
2330   Always compile with libdevmapper, even if device-mapper is disabled.
2331
2332 Version 2.02.06 - 12th May 2006
2333 ===============================
2334   Propagate --monitor around cluster.
2335   Add --monitor to vgcreate and lvcreate to control dmeventd registration.
2336   Filter LCK_NONBLOCK in clvmd lock_vg.
2337   Add --nosync to lvcreate with LV flag NOTSYNCED.
2338   Use mirror's uuid for a core log.
2339   Add mirror log fault-handling policy.
2340   Improve mirror warning messages and tidy dmeventd syslog output.
2341   Propagate nosync flag around cluster.
2342   Allow vgreduce to handle mirror log failures.
2343   Add --corelog to lvcreate and lvconvert.
2344   Create a log header for replacement in-sync mirror log.
2345   Use set_lv() and dev_set() to wipe sections of devices.
2346   Add mirror_in_sync() flag to avoid unnecessary resync on activation.
2347   Add mirror_library description to example.conf.
2348   Fix uuid_from_num() buffer overrun.
2349   Make SIZE_SHORT the default for display_size().
2350   Fix some memory leaks in error paths found by coverity.
2351   Use C99 struct initialisers.
2352   Move DEFS into configure.h.
2353   Clean-ups to remove miscellaneous compiler warnings.
2354   Improve stripe size validation.
2355   Increase maximum stripe size limit to physical extent size for lvm2 metadata.
2356   Fix activation code to check for pre-existing mirror logs.
2357   Tighten region size validation.
2358   Ignore empty strings in config files.
2359   Require non-zero regionsize and document parameter on lvcreate man page.
2360   Invalidate cache if composition of VG changed externally.
2361
2362 Version 2.02.05 - 21st April 2006
2363 =================================
2364   Fix vgid string termination in recent cache code.
2365
2366 Version 2.02.04 - 19th April 2006
2367 =================================
2368   Check for libsepol.
2369   Add some cflow & scope support.
2370   Separate out DEFS from CFLAGS.
2371   Remove inlines and use unique function names.
2372
2373 Version 2.02.03 - 14th April 2006
2374 =================================
2375   vgrename accepts vgid and exported VG.
2376   Add --partial to pvs.
2377   When choosing between identically-named VGs, also consider creation_host.
2378   Provide total log suppression with 2.
2379   Fix vgexport/vgimport to set/reset PV exported flag so pv_attr is correct.
2380   Add vgid to struct physical_volume and pass with vg_name to some functions.
2381   If two or more VGs are found with the same name, use one that is not exported.
2382   Whenever vgname is captured, also capture vgid and whether exported.
2383   Remove an incorrect unlock_vg() from process_each_lv().
2384   Update extent size information in vgchange and vgcreate man pages.
2385   Introduce origin_from_cow() and lv_is_visible().
2386   pvremove without -f now fails if there's no PV label.
2387   Support lvconvert -s.
2388   Suppress locking library load failure message if --ignorelockingfailure.
2389   Propagate partial mode around cluster.
2390   Fix archive file expiration.
2391   Fix dmeventd build.
2392   clvmd now uses libcman rather than cman ioctls.
2393   clvmd will allow new cman to shutdown on request.
2394
2395 Version 2.02.02 - 7th February 2006
2396 ===================================
2397   Add %.so: %.a make template rule.
2398   Switchover library building to use LIB_SUFFIX.
2399   Only do lockfs filesystem sync when suspending snapshots.
2400   Always print warning if activation is disabled.
2401   vgreduce removes mirror images.
2402   Add --mirrorsonly to vgreduce.
2403   vgreduce replaces active LVs with error segment before removing them.
2404   Set block_on_error parameter if available.
2405   Add target_version.
2406   Add details to format1 'Invalid LV in extent map' error message.
2407   Fix lvscan snapshot full display.
2408   Bring lvdisplay man page example into line.
2409   Add mirror dmeventd library.
2410   Add some activation logic to remove_mirror_images().
2411   lvconvert can remove specified PVs from a mirror.
2412   lvconvert turns an existing LV into a mirror.
2413   Allow signed mirrors arguments.
2414   Move create_mirror_log() into toollib.
2415   Determine parallel PVs to avoid with ALLOC_NORMAL allocation.
2416   Fix lv_empty.
2417
2418 Version 2.02.01 - 23rd November 2005
2419 ====================================
2420   Fix lvdisplay cmdline to accept snapshots.
2421   Fix open RO->RW promotion.
2422   Fix missing vg_revert in lvcreate error path.
2423
2424 Version 2.02.00 - 10th November 2005
2425 ====================================
2426   Extend allocation areas to avoid overflow with contiguous with other PVs.
2427   Stop lvcreate attempting to wipe zero or error segments.
2428   Added new lvs table attributes.
2429   Separated out activation preload.
2430   Moved activation functions into libdevmapper.
2431   Fixed build_dm_name.
2432   Add return macros.
2433   Added xen xvd devices.
2434   Clear up precommitted metadata better.
2435   A pvresize implementation.
2436   Fix contiguous allocation when there are no preceding segments.
2437   Add mirror_seg pointer to lv_segment struct.
2438   Only keep a device open if it's known to belong to a locked VG.
2439   Fix lvdisplay to show all mirror destinations.
2440   Replacement suspend code using libdevmapper dependency tree.
2441   Add DEFS to make.tmpl.
2442   Use dm_is_dm_major instead of local copy.
2443   Allow mapped devices to be used as PVs.
2444   Move set_selinux_context into libdevmapper.
2445   Fix automatic text metadata buffer expansion (using macro).
2446   Cache formatted text metadata buffer between metadata area writes.
2447   Add pe_start field to pvs.
2448   Add 'LVM-' prefix to uuids.
2449   Split lv_segment_area from lv_segment to permit extension.
2450   Replacement deactivation code using libdevmapper dependency tree.
2451   Simplify dev_manager_info().
2452   Attempt to load missing targets using modprobe.
2453   Add -a to lvscan.
2454   Move mknodes into libdevmapper.
2455   Move bitset, hash, pool and dbg_malloc into libdevmapper.
2456
2457 Version 2.01.15 - 16th October 2005
2458 ===================================
2459   Refuse to run pvcreate/pvremove on devices we can't open exclusively.
2460   Use ORPHAN lock definition throughout.
2461   Validate chunksize in lvcreate.
2462   Reduce chunksize limit to 512k.
2463   Fix chunksize field in reports.
2464   Don't hide snapshots from default 'lvs' output.
2465   Add is_dm_major() for use in duplicate device detection in lvmcache_add().
2466   Really switch device number in lvmcache when it says it is doing so.
2467   Option for bitset memory allocation using malloc as well as pool.
2468   Don't assume exactly two mirrors when parsing mirror status.
2469   Suppress fsync() error message on filesystems that don't support it.
2470   Fix yes_no_prompt() error handling.
2471   Add lvm.conf comment warning against multiple filter lines.
2472   Tidy lvmconf.sh.
2473   Add format1 dev_write debug messages.
2474   Add clustered VG attribute to report.
2475   Move lvconvert parameters into struct lvconvert_params.
2476   Add clustered VG flag to LV lock requests.
2477   Change LV locking macros to take lv instead of lvid.
2478   Prepend 'cluster' activation parameter to mirror log when appropriate.
2479   Pass exclusive flag to lv_activate and on to target activation code.
2480   Prevent snapshot creation in a clustered VG for now.
2481   Factor out adjusted_mirror_region_size() and generate_log_name_format().
2482   Move compose_log_line() into mirror directory.
2483   Factor out _get_library_path().
2484   Don't kill idling clvmd threads.
2485   clvmd no longer takes out locks for non-clustered LVs.
2486   Recognise ATA over Ethernet (aoe) devices.
2487
2488 Version 2.01.14 - 4th August 2005
2489 =================================
2490   Fix lvconvert PV parameter in help string.
2491   Prevent snapshots getting activated in a clustered VG.
2492   Separate out _build_dev_string.
2493   Move zero_lv to toollib.
2494   Fix pool format handler to work with pv segment code.
2495
2496 Version 2.01.13 - 13th July 2005
2497 ================================
2498   Fix pvmove segment splitting.
2499   Abstract vg_validate.
2500   Only make one attempt at contiguous allocation.
2501   Fix lvm1 format metadata read.
2502   Fix lvm1 format non-mirror lvcreate.
2503
2504 Version 2.01.12 - 14th June 2005
2505 ================================
2506   Various allocation-related pvmove fixes.
2507   Log an error if clvmd can't resolve a host name got from CCS.
2508   Fix potential spin loop in clvmd.
2509
2510 Version 2.01.11 - 13th June 2005
2511 ================================
2512   Added lvmconf.sh.
2513   Use matchpathcon mode parameter.
2514   Don't defer closing dead FDs in clvmd.
2515   Remove hard-coded 64k text metadata writing restriction.
2516   Make VG name restrictions consistent.
2517   Introduce lvconvert.  So far only removes mirror images.
2518   Allow mirror images to be resized.
2519   Allow mirror images to have more than one segment.
2520   Centralise restrictions on LV names.
2521   Always insert an intermediate layer for mirrors.
2522   Suppress hidden LVs from reports unless --all is given.
2523   Use square brackets for hidden LVs in reports.
2524   Allow the creation of mirrors with contiguous extents.
2525   Always perform sanity checks against metadata before committing it to disk.
2526   Split lv_extend into two steps: choosing extents + allocation to LV(s).
2527   Add mirror log region size to metadata.
2528   Use list_iterate_items throughout and add list*back macros.
2529   Introduce seg_ macros to access areas.
2530   Add segtype_is_ macros.
2531   Support tiny metadata areas for pool conversions.
2532   Mirror activation handles disk log as well as core.
2533   Activation code recognises mirror log dependency.
2534   Add mirror_log and regionsize fields to report.
2535   Fix non-orphan pvchange -u.
2536   Fix vgmerge to handle duplicate LVIDs.
2537   Move archiver code from tools into library.
2538   vgscan/change/display/vgs automatically create metadata backups if needed.
2539   Merge cloned allocation functions.
2540   Fix contiguous allocation policy with linear.
2541   Cope with missing format1 PVs again.
2542   Remove lists of free PV segments.
2543   Simplify pv_maps code and remove slow bitset algorithm.
2544   Red-Hat-ify the clvmd rhel4 initscript.
2545   %Zu->%zu
2546   Fix loopfiles alias alloc & mem debugging.
2547   Un-inline dbg_strdup.
2548   lv_reduce tidying.
2549   Remove some unnecessary parameters.
2550   Introduce seg_is macros.
2551
2552 Version 2.01.10 - 3rd May 2005
2553 ==============================
2554   Don't create backup and archive dirs till needed.
2555   Reinstate full PV size when removing from VG.
2556   Support loopfiles for testing.
2557   Tidy lv_segment interface.
2558   pv_segment support.
2559   vgchange --physicalextentsize
2560   Internal snapshot restructuring.
2561   Remove unused internal non-persistent snapshot option.
2562   Allow offline extension of snapshot volumes.
2563   Move from 2-step to 3-step on-disk metadata commit.
2564   Scan ramdisks too and allow non-O_DIRECT fallback.
2565   Annotate, tidy and extend list.h.
2566   Alignment tidying.
2567   Make clvmd work around some "bugs" in gulm's node state notifications.
2568   Tidy clvmd's SIGHUP handler
2569
2570 Version 2.01.09 - 4th April 2005
2571 ================================
2572   Add --ignorelockingfailure to vgmknodes.
2573   clvmd: Don't allow user operations to start until the lvm thread is fully up.
2574   clvmd-gulm: set KEEPALIVE on sockets.
2575
2576 Version 2.01.08 - 22nd March 2005
2577 =================================
2578   Add clustered attribute so vgchange can identify clustered VGs w/o locking.
2579   Improve detection of external changes affecting internal cache.
2580   Add 'already in device cache' debug message.
2581   Add -a to pvdisplay -C.
2582   Avoid rmdir opendir error messsages when dir was already removed.
2583   Tighten signal handlers.
2584   Avoid some compiler warnings.
2585   Additional rename failure error message.
2586   read/write may be macros.
2587   clvmd: don't take out lvm thread lock at startup, it only protects jobs list.
2588
2589 Version 2.01.07 - 8th March 2005
2590 ================================
2591   Cope with new devices appearing by rescanning /dev if a uuid can't be found.
2592   Remove DESTDIR from LVM_SHARED_PATH.
2593   clvmd fixes: make FDs close-on-exec
2594                gulm unlocks VG & orphan locks at startup in case they are stale
2595                gulm now unlocks VG & orphan locks if client dies.
2596
2597 Version 2.01.06 - 1st March 2005
2598 ================================
2599   Suppress 'open failed' error messages during scanning.
2600   Option to suppress warnings of file descriptors left open.
2601   Fix default value of metadatacopies in documentation (2->1).
2602   Fix clvmd-gulm locking.
2603   ./configure --enable-debug now enables debugging code in clvmd.
2604   Fix clvmd-gulm node up/down code so it actually works.
2605   clvmd-gulm now releases locks when shut down.
2606
2607 Version 2.01.05 - 18th February 2005
2608 ====================================
2609   Static binary invokes dynamic binary if appropriate.
2610   Make clvmd config check a little more tolerant.
2611   gulm clvmd can now cope with >1 message arriving in a TCP message.
2612
2613 Version 2.01.04 - 9th February 2005
2614 ===================================
2615   Add fixed offset to imported pool minor numbers.
2616   Update binary pathnames in clvmd_init_rhel4.
2617   lvm2cmd.so should skip the check for open fds.
2618   Remove unused -f from pvmove.
2619   Gulm clvmd doesn't report "connection refused" errors.
2620   clvmd does a basic config file sanity check at startup.
2621   Fix potential thread shutdown race in clvmd.
2622
2623 Version 2.01.03 - 1st February 2005
2624 ===================================
2625   More 64-bit display/report fixes.
2626   More informative startup mesg if can't create /etc/lvm.
2627   Fix snapshot device size bug (since 2.01.01).
2628   clvmd announces startup and cluster connection in syslog.
2629   Gulm clvmd doesn't hang trying to talk to a rebooted node.
2630   Gulm clvmd doesn't print cman error on startup.
2631
2632 Version 2.01.02 - 21st January 2005
2633 ===================================
2634   Update clvmd_init_rhel4: use lvm.static and don't load dlm.
2635   Fix some size_t printing.
2636   Fix 64 bit xlate consts.
2637   Split out pool sptype_names to avoid unused const.
2638   Always fail if random id generation fails.
2639   Recognise gnbd devices.
2640   Fix clvmd startup bug introduced in cman/gulm amalgamation.
2641   Improve reporting of node-specific locking errors.
2642
2643 Version 2.01.01 - 19th January 2005
2644 ===================================
2645   Fix clvmd lv_info_by_lvid open_count.
2646   Store snapshot and origin sizes separately.
2647   Update vgcreate man page.
2648
2649 Version 2.01.00 - 17th January 2005
2650 ===================================
2651   Fix vgscan metadata auto-correction.
2652   Only ask libdevmapper for open_count when we need it.
2653   Adjust RHEL4 clvmd init script priority.
2654   Enable building of CMAN & GULM versions of clvmd into a single binary
2655
2656 Version 2.00.33 - 7th January 2005
2657 ==================================
2658   pvcreate wipes first 4 sectors unless given --zero n.
2659   gulm clvmd now uses new ccsd key names.
2660   gulm clvmd now doesn't ignore the first node in cluster.conf
2661   Improve clvmd failure message if it's already running.
2662   Allow user to kill clvmd during initialisation.
2663   Fix off-by-one error in cluster_locking that could cause read hangs.
2664
2665 Version 2.00.32 - 22nd December 2004
2666 ====================================
2667   Drop static/dl restriction for now.
2668   Fix an error fprintf.
2669   Fix vgdisplay -s. Breaks (undocumented) lvs/pvs/vgs -s instead for now.
2670   Fix device reference counting on re-opens.
2671   Ignore sysfs symlinks when DT_UNKNOWN.
2672   Add clvmd init script for RHEL4.
2673   Skip devices that are too small to be PVs.
2674   Fix pvchange -x segfault with lvm2-format orphan.
2675   Cope with empty msdos partition tables.
2676   Add CONTRIBUTORS file.
2677
2678 Version 2.00.31 - 12th December 2004
2679 ====================================
2680   Reopen RO file descriptors RW if necessary.
2681
2682 Version 2.00.30 - 10th December 2004
2683 ====================================
2684   Additional device-handling debug messages.
2685   Additional verbosity level -vvvv includes line numbers and backtraces.
2686   Verbose messages now go to stderr not stdout.
2687   Close any stray file descriptors before starting.
2688   Refine partitionable checks for certain device types.
2689   Allow devices/types to override built-ins.
2690   Fix lvreduce man page .i->.I
2691   Fix vgsplit man page title.
2692   Fix clvmd man makefile.
2693   Extend dev_open logging.
2694   Make clvmd_fix_conf.sh UNDOable.
2695
2696 Version 2.00.29 - 27th November 2004
2697 ====================================
2698   xlate compilation fix.
2699
2700 Version 2.00.28 - 27th November 2004
2701 ====================================
2702   Fix partition table & md signature detection.
2703   Minor configure/makefile tidy.
2704   Export version.h from tools for clvmd.
2705
2706 Version 2.00.27 - 24th November 2004
2707 ====================================
2708   Trap large memory allocation requests.
2709   Fix to partition table detection code.
2710   Improve filter debug mesgs.
2711   Make clvmd_fix_conf.sh UNDOable
2712
2713 Version 2.00.26 - 23rd November 2004
2714 ====================================
2715   Improve pool debugging stats.
2716   Detect partition table signature.
2717   pvcreate wipes md superblocks. (With --uuid or --restorefile it prompts.)
2718   Separate out md superblock detection code.
2719   Prevent snapshot origin resizing.
2720   Improve a vgremove error message.
2721   Update some man pages.
2722   Allow y/n with -ae args (exclusive activation).
2723   Fixes to lvcreate vgname parsing.
2724   Fix dm_name string size calculation.
2725   Improve clvmd error reporting during startup.
2726   Make clvmd cope with large gaps in node numbers IDs.
2727   Make clvmd initialisation cope better with debugging output.
2728   Tidy clvmd socket callbacks so all work happens outside main loop.
2729   clvmd -V now displays lvm version too.
2730   Add optional gulm build for clvmd
2731
2732 Version 2.00.25 - 29th September 2004
2733 =====================================
2734   Fix return code from rm_link for vgmknodes.
2735   Make clvmd LV hash table thread-safe.
2736   Fix clvmd locking so it will lock out multiple users on the same node.
2737   Fix clvmd VG locking to it can cope with multiple VG locks.
2738   Remove spurious trailing dot in lvreduce man page.
2739   Fix vgremove locking.
2740
2741 Version 2.00.24 - 16th September 2004
2742 =====================================
2743   Fix pool_empty so it really does empty the memory pool.
2744   Rename old segtypes files to segtype.
2745   Some fixes to memory debugging code.
2746   Exclude internal commands formats & segtypes from install.
2747
2748 Version 2.00.23 - 15th September 2004
2749 =====================================
2750   Export dm name build & split functions.
2751   Use O_NOATIME on devices if available.
2752   Write log message when each segtype/format gets initialised.
2753   New commands 'segtypes' and 'formats'.
2754   Suppress pvmove abort message in test mode.
2755   Improve pvcreate/remove device not found error message.
2756   Allow pvmove to move data within the same PV.
2757   Describe how pvmove works on man page.
2758   Test for incompatible format/segtype combinations in lv_extend.
2759   Fix lvchange example on man page.
2760
2761 Version 2.00.22 - 3rd September 2004
2762 ====================================
2763   Fix /dev/vgname perms.
2764   Restructure xlate.h.
2765   Add clvmd man page.
2766
2767 Version 2.00.21 - 19th August 2004
2768 ==================================
2769   Update cnxman-socket.h from cman.
2770   Recognise iseries/vd devices.
2771   Use 'make install_cluster' to install cluster extensions only.
2772   Cope with DT_UNKNOWN in sysfs.
2773   Fix extents_moved metadata size comment.
2774   Remove duplicate line in pvremove help text.
2775   Support variable mirror region size.
2776   Support PE ranges in pvmove source PV.
2777   Fixes to as-yet-unused LV segment splitting code.
2778   Change alloc_areas to pe_ranges and allow suppression of availability checks.
2779   Add dev_size column to pvs.
2780   Add report columns for in-kernel device number.
2781
2782 Version 2.00.20 - 3 July 2004
2783 =============================
2784   More autoconf fixes.
2785   Fix device number handling for 2.6 kernels.
2786
2787 Version 2.00.19 - 29 June 2004
2788 ==============================
2789   Reduce severity of setlocale failure message.
2790   Recognise argv[0] "initrd-lvm" (pld-linux).
2791   Make -O2 configurable.
2792   Added --disable-selinux to configure script.
2793   LD_FLAGS->LDFLAGS & LD_DEPS->LDDEPS in configure script.
2794   Add init_debug to clvmd.
2795
2796 Version 2.00.18 - 24 June 2004
2797 ==============================
2798   Fix vgchange activation.
2799   Add cluster support.
2800
2801 Version 2.00.17 - 20 June 2004
2802 ==============================
2803   configure --enable-fsadm to try out fsadm.  fsadm is not tested yet.
2804   Display all filtered devices, not just PVs, with pvs -a.
2805   Fix sync_dir() when no / in filename
2806   vgcfgbackup -f accepts template with %s for VG name.
2807   Extend hash functions to handle non-null-terminated data.
2808   Add local activation support.
2809   Tidy relative paths in makefile includes.
2810   fsadm support for fsck and resizing - needs testing.
2811   Add read-only GFS pool support.
2812   Add lvm2create_initrd script from http://poochiereds.net/svn/lvm2/
2813   Fix rounding of large diplayed sizes.
2814   Suppress decimal point when using units of sectors/bytes.
2815   Additional kernel target checks before pvmove & snapshot creation.
2816   Add i2o_block.
2817
2818 Version 2.00.16 - 24 May 2004
2819 =============================
2820   Set area_count within alloc_lv_segment.
2821   Remove error labels from lvresize.
2822   Fix a pvs error path.
2823   xxchange -ae for exclusive activation.
2824   Don't return non-zero status if there aren't any volume groups.
2825   Add --alloc argument to tools.
2826   Rename allocation policies to contiguous, normal, anywhere, inherit.
2827   nextfree becomes normal; anywhere isn't implemented yet.
2828   LV inherits allocation policy from VG. Defaults: LV - inherit; VG - normal
2829   Additional status character added to vgs to indicate allocation policy.
2830   Add reset_fn to external_locking.
2831   Ensure presence of virtual targets before attempting activating.
2832   Attempt to fix resizing of snapshot origins.
2833   Restructure lvresize, bringing it closer to lvcreate.
2834   A quick sanity check on vg_disk struct when read in.  More checks needed.
2835   Only include visible LVs in active/open counts.
2836   Add virtual segment types, zero and error.  A large sparse device can be
2837 constructed as a writeable snapshot of a large zero segment.
2838   Add --type to lvcreate/resize.
2839   Push lv_create & alloc policy up to tool level.
2840   Fix pvdisplay return code.
2841   Detect invalid LV names in arg lists.
2842   Reporting uses line-at-a-time output.
2843   lvm2 format sets unlimited_vols format flag.
2844   Internal-only metadata flag support.
2845   Basic checking for presence of device-mapper targets.
2846   Separate out polldaemon.
2847   Revise internal locking semantics.
2848   Move find_pv_by_name to library.
2849   Rename move->copy.
2850   Add devices to segments report.
2851   Begin separating out segment code. There's a lot of change here.
2852   Compress any (obsolete) long LVM1 pvids encountered.
2853   Support for tagged config files.
2854   Don't abort operations if selinux present but disabled.
2855   Fix typo in configure which left HAVE_LIBDL unset.
2856
2857 Version 2.00.15 - 19 Apr 2004
2858 =============================
2859   configure --with-owner= --with-group= to avoid -o and -g args to 'install'
2860
2861 Version 2.00.14 - 16 Apr 2004
2862 =============================
2863   Use 64-bit file functions by default.
2864
2865 Version 2.00.13 - 16 Apr 2004
2866 =============================
2867   Set devices/md_component_detection = 1 to ignore devices containing md
2868   superblocks. [Luca Berra]
2869   Ignore error setting selinux file context if fs doesn't support it.
2870
2871 Version 2.00.12 - 14 Apr 2004
2872 =============================
2873   Install a default lvm.conf into /etc/lvm if there isn't one already.
2874   Allow different installation dir for lvm.static (configure --staticdir=)
2875   Fix inverted selinux error check.
2876   Recognise power2 in /proc/devices.
2877   Fix counting in lvs_in_vg_opened. [It ignored devices open more than once.]
2878
2879 Version 2.00.11 - 8 Apr 2004
2880 ============================
2881   Set fallback_to_lvm1 in lvm.conf (or configure --enable-lvm1_fallback)
2882   to run lvm1 binaries if running a 2.4 kernel without device-mapper.
2883
2884 Version 2.00.10 - 7 Apr 2004
2885 ============================
2886   More fixes for static build.
2887   Add basic selinux support.
2888   Fix sysfs detection.
2889
2890 Version 2.00.09 - 31 Mar 2004
2891 =============================
2892   Update copyright notices for Red Hat.
2893   Fix vgmknodes to remove dud /dev/mapper entries. (libdevmapper update reqd).
2894   Add LVM1-style colon output to vgdisplay.
2895   lvchange --refresh to reload active LVs.
2896   Add string display to memory leak dump.
2897   Add locking flags & memlock option.
2898   Add list_versions to library.
2899   Ignore open hidden LVs when checking if deactivation is OK.
2900   Suppress move percentage when device inactive.
2901   Add lv_info_by_lvid.
2902   Various tidy-ups to the build process.
2903   Rebaseline internal verbose level.
2904   Add --nolocking option for read operations if locking is failing.
2905   Add option to compile into a library.
2906   When compiled without libdevmapper, only print warning message once.
2907   Fix lvreduce PV extent calculations.
2908   Fix DESTDIR to work with configure path overrides.
2909   Always use / as config file separator & rename internal config file variables.
2910   Add support for tagging PV/VG/LVs and hosts.
2911   Fix rare bug in recognition of long cmdline argument forms.
2912   Add basic internationalisation infrastructure.
2913   Don't recurse symlinked dirs such as /dev/fd on 2.6 kernels.
2914   Update autoconf files.
2915   Add sysfs block device filtering for 2.6 kernels.
2916   Update refs for move to sources.redhat.com.
2917
2918 Friday 14th November 2003
2919 =========================
2920 Some bug fixes & minor enhancements, including:
2921   Backwards compatibility with LVM1 metadata improved.
2922   Missing man pages written.
2923   Tool error codes made more consistent.
2924   vgmknodes written.
2925   O_DIRECT can be turned off if it doesn't work in your kernel.
2926   dumpconfig to display the active configuration file
2927
2928 You need to update libdevmapper before using 'vgmknodes' or 'vgscan --mknodes'.
2929 If your root filesystem is on an LV, you should run one of those two
2930 commands to fix up the special files in /dev in your real root filesystem
2931 after finishing with your initrd.  Also, remember you can use
2932 'vgchange --ignorelockingfailure' on your initrd if the tool fails because
2933 it can't write a lock file to a read-only filesystem.
2934
2935 Wednesday 30th April 2003
2936 =========================
2937 A pvmove implementation is now available for the new metadata format.
2938
2939 When running a command that allocates space (e.g. lvcreate), you can now
2940 restrict not only which disk(s) may be used but also the Physical Extents
2941 on those disks.  e.g. lvcreate -L 10 vg1 /dev/hda6:1000-2000:3000-4000
2942
2943
2944 Monday 18th November 2002
2945 ========================
2946
2947 The new format of LVM metadata is ready for you to test!
2948   We expect it to be more efficient and more robust than the original format.
2949   It's more compact and supports transactional changes and replication.
2950   Should things go wrong on a system, it's human-readable (and editable).
2951
2952 Please report any problems you find to the mailing list,
2953 linux-lvm@sistina.com.  The software has NOT yet been thoroughly
2954 tested and so quite possibly there'll still be some bugs in it.
2955 Be aware of the disclaimer in the COPYING file.
2956
2957 While testing, we recommend turning logging on in the configuration file
2958 to provide us with diagnostic information:
2959   log {
2960         file="/tmp/lvm2.log"
2961         level=7
2962         activation=1
2963   }
2964
2965 You should schedule regular backups of your configuration file and
2966 metadata backups and archives (normally kept under /etc/lvm).
2967
2968 Please read docs/example.conf and "man lvm.conf" to find out more about
2969 the configuration file.
2970
2971 To convert an existing volume group called vg1 to the new format using
2972 the default settings, use "vgconvert -M2 vg1".  See "man vgconvert".
2973
2974 -M (or --metadatatype in its long form) is a new flag to indicate which
2975 format of metadata the command should use for anything it creates.
2976 Currently, the valid types are "lvm1" and "lvm2" and they can be
2977 abbreviated to "1" and "2" respectively.  The default value for this
2978 flag can be changed in the global section in the config file.
2979
2980 Backwards-compatible support for the original LVM1 metadata format is
2981 maintained, but it can be moved into a shared library or removed
2982 completely with configure's --with-lvm1 option.
2983
2984 Under LVM2, the basic unit of metadata is the volume group.  Different
2985 volume groups can use different formats of metadata - vg1 could use
2986 the original LVM1 format while vg2 used the new format - but you can't
2987 mix formats within a volume group.  So to add a PV to an LVM2-format
2988 volume group you must run "pvcreate -M2" on it, followed by "vgextend".
2989
2990 With LVM2-format metadata, lvextend will let you specify striping
2991 parameters.  So an LV could consist of two or more "segments" - the
2992 first segment could have 3 stripes while the second segment has just 2.
2993
2994 LVM2 maintains a backup of the current metadata for each volume group
2995 in /etc/lvm/backup, and puts copies of previous versions in
2996 /etc/lvm/archive.  "vgcfgbackup" and "vgcfgrestore" can be used to
2997 create and restore from these files.  If you fully understand what
2998 you're doing, metadata can be changed by editing a copy of a current
2999 backup file and using vgcfgrestore to reload it.
3000
3001 Please read the pvcreate man page for more information on the new
3002 format for metadata.
3003
3004 All tools that can change things have a --test flag which can be used
3005 to check the effect  of a set of cmdline args without really making the
3006 changes.
3007
3008
3009 What's not finished?
3010 ====================
3011 The internal cache.  If you turn on debugging output you'll see lots of
3012 repeated messages, many of which will eventually get optimised out.
3013
3014 --test sometimes causes a command to fail (e.g. vgconvert --test) even
3015 though the real command would work: again, fixing this is waiting for
3016 the work on the cache.
3017
3018 Several of the tools do not yet contain the logic to handle full
3019 recovery: combinations of pvcreate and vgcfgrestore may sometimes be
3020 needed to restore metadata if a tool gets interrupted or crashes or
3021 finds something unexpected.  This applies particularly to tools that
3022 work on more than one volume group at once (e.g. vgsplit).
3023
3024 Display output.  Some metadata information cannot yet be displayed.
3025
3026 Recovery tools to salvage "lost" metadata directly from the disks:
3027 but we hope the new format will mean such tools are hardly ever needed!