WHATS_NEW

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