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Commit Graph

12819 Commits

Author SHA1 Message Date
David Teigland
589b752eeb man: rewrite lvconvert
Based on the new enumeration of all possible commands.
2016-07-07 17:12:37 -05:00
David Teigland
0de56eeaad man: more rewording for lvcreate size 2016-07-07 13:11:43 -05:00
David Teigland
13cd3ff5a0 lvconvert: allow converting type raid1 to type linear
The code could perform this conversion but ironically
did not recognize the standard command form, only the
the unpreferred "implication-based" command form.

"lvconvert --type linear VG/RaidLV" would fail, but
"lvconvert --mirrors 0 VG/RaidLV" would succeed.
2016-07-06 16:44:18 -05:00
David Teigland
37d1b7b745 lvconvert: allow converting type mirror to type linear
The code could perform this conversion but ironically
did not recognize the standard command form, only the
the unpreferred "implication-based" command form.

"lvconvert --type linear VG/MirrorLV" would fail, but
"lvconvert --mirrors 0 VG/MirrorLV" would succeed.
2016-07-06 16:33:25 -05:00
David Teigland
4d1c4e1f73 vgcreate: allow pvcreate force option
Commit a9940bd3c9 began disallowing the -f (force) option
to apply to the implicit pvcreate.  Make it allowed again.
2016-07-06 14:10:53 -05:00
David Teigland
351bcf5f82 man: clarify lvcreate size in extents 2016-07-06 11:35:50 -05:00
Alasdair G Kergon
f6b98ec7ca post-release 2016-07-06 17:04:25 +01:00
Alasdair G Kergon
8ca874bc1f pre-release 2016-07-06 16:55:44 +01:00
Bryn M. Reeves
bf1dfea393 libdm: check for empty aux_data in _parse_aux_data_group()
If after extracting stats arguments and group tags nothing remains
of aux_data but '-' set the region->aux_data field to the empty
string to match behaviour for non-grouped regions.
2016-07-06 16:31:30 +01:00
Alasdair G Kergon
c1a66d4fc6 coverity: Fixes for recent changes. 2016-07-06 16:09:32 +01:00
Bryn M. Reeves
a497b95db1 libdm: use log_err_once() for group histogram message 2016-07-06 11:16:12 +01:00
Bryn M. Reeves
28658541da libdm: do not permit grouping regions with histograms
Although not harmful do not allow a group containing regions with
histograms since it is not currently possible to present histogram
data aggregated for the group.
2016-07-06 11:10:23 +01:00
Bryn M. Reeves
1faa208067 dmstats: simplify nr_areas calculation (CWE-561)
Eliminate dead conditional (step cannot be zero).

Fixes commit 988ca74.
2016-07-06 09:59:45 +01:00
Bryn M. Reeves
21b946dfb7 dmstats: fix 'obj_type' field width
The header for 'obj_type' was changed from 'Object Type' to
'ObjType': update the minimum field width to match this change.
2016-07-06 09:37:59 +01:00
Bryn M. Reeves
95ef0cdb46 libdm: check non-zero io count in _average_{rd,wr}_wait_time (Coverity)
Although a non-zero value for the number of ticks spent doing IO
should imply a non-zero number of IOs in the interval test for
this explicitly to avoid a divide-by-zero in the event of bad
counter data.
2016-07-06 09:23:13 +01:00
Bryn M. Reeves
03e03e9c11 libdm: test for zero interval_ns in _utilization() (Coverity)
It's possible for interval_ns to be zero if the interval is not
set or the clock is misconfigured. Test for this before using the
value as the divisor in the utilisation calculation.
2016-07-06 09:14:43 +01:00
Bryn M. Reeves
5d3b136d38 libdm: restore missing braces in _stats_walk_end_areas
Jumping to the end of the region table must only happen if there
are no more present, non-skipped regions, and no group walk is
configured to begin.
2016-07-06 09:04:13 +01:00
Bryn M. Reeves
69c721dd68 libdm: fix mask leak in dm_bitset_parse_list
If an unexpected '-' is found jump to the error branch so that the
mask is properly freed before returning.
2016-07-06 08:59:09 +01:00
Alasdair G Kergon
fb0a671419 post-release 2016-07-06 01:14:33 +01:00
Alasdair G Kergon
6022715c81 pre-release 2016-07-06 00:59:28 +01:00
Alasdair G Kergon
dfcdfa057b vgsplit: Don't skip moving internal snapshot LV.
Also place snapshot LV handling back at the end, after all possible
origin and cow LVs got dealt with.
2016-07-05 23:08:14 +01:00
Bryn M. Reeves
4d4f48af9f libdm: cast walk flags to uint64_t when logging.
Walk flags are ULL constants; cast the result to a uint64_t before
logging with a FMTx64 format specifier to avoid a compiler warning:

  warning: format ‘%lx’ expects argument of type ‘long unsigned int’,
  but argument 5 has type ‘long long unsigned int’
2016-07-05 20:45:24 +01:00
Bryn M. Reeves
f1dd0258f1 libdm: ensure flags constants have ULL suffix
The walk flags used by libdm-stats use the upper portion of a 64b
value: use the ULL suffix to ensure the compiler knows the expected
size.
2016-07-05 20:21:49 +01:00
Bryn M. Reeves
93034d0b69 doc: document --area, --region, and --group in dmstats.8.in 2016-07-05 19:53:17 +01:00
Bryn M. Reeves
e9c6fd3cff dmstats: fix <backtrace> in _display_info_cols()
Remove a false <backtrace> in _display_info_cols(): it is not an
error if there are no regions to display.

Fixes commit e6724f03.
2016-07-05 19:53:17 +01:00
Bryn M. Reeves
0f64f2d5fc libdm: fix <backtrace> in dm_stats_populate 2016-07-05 19:53:17 +01:00
Bryn M. Reeves
53e92441a6 libdm: fix <backtrace> in dm_stats_get_nr_regions 2016-07-05 19:53:17 +01:00
Bryn M. Reeves
cf0fa3d693 dmstats: rename --auxdata to --userdata 2016-07-05 19:53:17 +01:00
Bryn M. Reeves
14b74c360f dmstats: rename 'aux_data' to 'user_data'
Make it clear that the "aux data" presented in reports is the user
data stored in the field (and does not include any library-internal
state such as group descriptors) by renaming the field to user_data
and changing the heading to "UserData".
2016-07-05 19:53:17 +01:00
Bryn M. Reeves
fef4832a85 libdm: clarify library's use of aux_data
Make it clear in libdevmapper.h, and in function argument names, that
libdm-stats uses the aux_data field internally and that any values set
for user_data are appended to the library values before being stored
with a region, and similarly, that internal data fields will be stripped
prior to returning any previously stored user_data.
2016-07-05 19:53:17 +01:00
Bryn M. Reeves
2b0dd0b051 dmstats: replace --statstype with separate object switches
Replace --statstype=area,region,group with a separate switch for
each object type: --area, --region, --group. Omitting any object
type switch will use the defaults for the current command (regions
and groups for list, and regions, groups and areas for verbose list).
2016-07-05 19:53:17 +01:00
Bryn M. Reeves
b926511b4b dmstats: add 'statsname' and 'obj_type' to default stats fields 2016-07-05 19:53:17 +01:00
Bryn M. Reeves
0b05e4a874 dmstats: rename 'type' field to 'obj_type'
Rename the field and remove whitespace from the column heading:

  "Object Type" -> "ObjType"
2016-07-05 19:53:17 +01:00
Bryn M. Reeves
c014425b6f dmstats: use 'statsname' and 'groupid' in default fields
Replace the 'name' field with 'statsname' in order to report alias
names for groups, and include the 'group_id' field between statsname
and the 'region_id' field to make it clear to the user when groups
are in use.
2016-07-05 19:53:17 +01:00
Bryn M. Reeves
b0964acadf dmstats: convert 'delete' to dm_stats_foreach_region() 2016-07-05 19:53:16 +01:00
Bryn M. Reeves
01cc11d9f8 dmstats: convert 'print' to dm_stats_foreach_region() 2016-07-05 19:53:16 +01:00
Bryn M. Reeves
2047b8e565 dmstats: convert 'clear' to dm_stats_foreach_region() 2016-07-05 19:53:16 +01:00
Bryn M. Reeves
f403ac8bf0 doc: update dmstats.8.in for groups 2016-07-05 19:53:16 +01:00
Bryn M. Reeves
cf6c1665f1 dmstats: fix region deletion message
Make the use of 64-bit format macros consistent with other usage
and end the message with a '.'.
2016-07-05 19:53:16 +01:00
Bryn M. Reeves
e554e375ae dmstats: accept --groupid for 'dmstats delete'
Allow deletion of a group and all the regions it contains with a
single 'dmstats delete' command.
2016-07-05 19:53:16 +01:00
Bryn M. Reeves
837e7e513b dmstats: allow --statstype to override report defults 2016-07-05 19:53:16 +01:00
Bryn M. Reeves
a2bf3c6ee8 dmstats: report a list of members as a group's region_id
Instead of '-' print the member list in range notation (as stored
in aux_data).
2016-07-05 19:53:16 +01:00
Bryn M. Reeves
ca0a4cecec dmstats: report groups and region summaries
Walk avaiable groups and regions (in addition to areas) and report
aggregate statistics and properties.

A new switch is added to filter the type of obects inclued in the
report:

  --statstype={all,area,region,group}

The type of the current row is also available in a new
DR_STATS_META field 'type'.
2016-07-05 19:53:16 +01:00
Bryn M. Reeves
8b179e09a4 dmstats: do not walk regions if deleting a single id 2016-07-05 19:53:16 +01:00
Bryn M. Reeves
402d840aa7 dmstats: add stats_name field
To allow the names used to describe statistics report objects to
change (for e.g to support groups and region and group aliases)
introduce a new "stats_name" field that evaluates to the correct
name for the object being reported.
2016-07-05 19:53:16 +01:00
Bryn M. Reeves
b55daa28e8 dmstats: add group alias support 2016-07-05 19:53:16 +01:00
Bryn M. Reeves
0761863e28 dmstats: add 'group' and 'ungroup' commands
Add a pair of commands to create and delete stats groups:

  dmstats group --regions REGIONS

  dmstats ungroup --groupid ID

REGIONS specifies a list of regions to be included in the group.
Regions are specified as a comma separated list in order of
increasing region ID. Ranges may be specified as a hypen separated
pair of values giving the first and last member of the range.
2016-07-05 19:53:16 +01:00
Bryn M. Reeves
b4cbc8f283 dmstats: add group_id report field type 2016-07-05 19:53:16 +01:00
Bryn M. Reeves
cda1622fef libdm: allow deleting regions with dm_stats_delete_group()
Add a flag to dm_stats_delete_group() to allow optional deletion
of all regions belonging to the group being removed.
2016-07-05 19:53:16 +01:00
Bryn M. Reeves
f1f2df7bc0 libdm: add stats group and region iterators and properties
Add support do dm_stats_walk*() to walk over the set of
available groups using the cursor embedded in the dm_stats
handle, and to obtain the type of the object at the current
stats cursor location. A set of flags is introduced to
control which objects are visited:

    DM_STATS_WALK_AREA
    DM_STATS_WALK_REGION
    DM_STATS_WALK_GROUP
    DM_STATS_WALK_ALL

A final flag suppresses visits to regions that contain only a
single area - since the aggregate of such a region is idential
to the area it contains this allows these duplicates to be
filtered out:

    DM_STATS_WALK_SKIP_SINGLE_AREA

If flags are not initialised before beginning a walk the default
set matches the behaviour of previous versions of the library.

Also accept group identifiers as immediate arguments to the
counter, metric, and property functions by adding control
flags to the region and area identifiers passed in.

Region and area properties are mapped to their equivalents for
the group (for example: group size is reported as the sum of
all regions contained in the group). Counter and metric values
are aggregated for the region or group.
2016-07-05 19:53:16 +01:00