WHATS_NEW

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