WHATS_NEW

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