WHATS_NEW

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