WHATS_NEW

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