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This patch fixed lvm2 compilation running on x32 arch.
(Using 64bit x86 cpu features but running on 32b address space,
so consuming less mem in VM).
On x32 arch 'time_t' is 64bit while 'long' is 32bit.
Commit f4b30b0dae was about displaying visible LV size
when reshape space is allocated. Take parity devices
into account when displaying the user visible LV size.
Report CMFmt column with cache metadata format version.
Report KMFmt column with 'kernel cache metadata format version' for device.
(a value reported from status).
(Update 'CacheMode' to name 'Cache' as primary segtype).
To more easily recognize unselected state from select '0' state
add new 'THIN_ZERO_UNSELECTED' enum.
Same applies to THIN_DISCARDS_UNSELECTED.
For those we no longer need to use PASS_ARG_ZERO or PASS_ARG_DISCARDS.
Reshaping a raid5 LV to one stripe aiming to convert it to
raid1 (and optionally to linear) reports the wrong LV size
when still having reshape space allocated.
Enhance the raid report functions for the recently added LV fields
reshape_len, reshape_len_le, data_offset, new_data_offset, data_copies,
data_stripes and parity_chunks to cope with "lvs --select".
Related: rhbz834579
Related: rhbz1191935
Related: rhbz1191978
Now that we got the "data_stripes" field key, adjust the "stripes" field description.
Enhance the "regionsize" field description to cover raids as well.
Commit 48778bc503 introduced new RAID reshaping related report fields.
The inclusioon of segtype.h in properties.c isn't mandatory, remove it.
Related: rhbz834579
Related: rhbz1191935
Related: rhbz1191978
During an ongoing reshape, the MD kernel runtime reads stripes relative
to data_offset and starts storing the reshaped stripes (with new raid
layout and/or new stripesize and/or new number of stripes) relative
to new_data_offset. This is to avoid writing over any data in place
which is non-atomic by nature and thus be recoverable without data loss
in the transition. MD uses the term out-of-place reshaping for it.
There's 2 other areas we don't have report capability for:
- number of data stripes vs. total stripes
(e.g. raid6 with 7 stripes toal has 5 data stripes)
- number of (rotating) parity/syndrome chunks
(e.g. raid6 with 7 stripes toal has 2 parity chunks; one
per stripe for P-Syndrome and another one for Q-Syndrome)
Thus, add the following reportable keys:
- reshape_len (in current units)
- reshape_len_le (in logical extents)
- data_offset (in sectors)
- new_data_offset ( " )
- data_stripes
- parity_chunks
Enhance lvchange-raid.sh, lvconvert-raid-reshape-linear_to_striped.sh,
lvconvert-raid-reshape-striped_to_linear.sh, lvconvert-raid-reshape.sh
and lvconvert-raid-takeover.sh to make use of new keys.
Related: rhbz834579
Related: rhbz1191935
Related: rhbz1191978
Convert lvs -o lv_merge_failed,lv_snapshot_invalid to use
lv_info_and_status function.
This makes it equal to attr value showing this info
(as they were different since they were derived from
different data set and different logic as well).
Also saves couple extra ioctl that were needed to obtain this info.
When displaying <reporting_command> -o help, we'd like to have fields
grouped nicely, not starting having groups interleaved as it was before.
The code that displays the help output for fields takes the order as
written in columns.h file - this caused output like:
$ lvs -o help
Logical Volume Fields
---------------------
...field list...
Logical Volume Device Info and Status Combined Fields
-----------------------------------------------------
...field list...
Logical Volume Fields
---------------------
...field list...
Logical Volume Device Status Fields
-----------------------------------
...field list...
Logical Volume Fields
---------------------
...field list...
Instead, let's have it without groups interleaved which may be
a bit confusing, so:
Logical Volume Fields
---------------------
...field list...
Logical Volume Device Status Fields
-----------------------------------
...field list...
Logical Volume Device Info and Status Combined Fields
-----------------------------------------------------
...field list...
..and so on.
Reinstantiate reporting of metadata percent usage for cache volumes.
Also show the same percentage with hidden cache-pool LV.
This regression was caused by optimization for a single-ioctl in
2.02.155.
With patches that will follow, this will make it possible to widen log
report coverage when commands are executed from lvm shell so the amount
of messages that may end up in stderr/stdout instead of log report are
minimized.
Simplify code around _do_get_report_selection - remove "expected_idxs[]"
argument which is superfluous and add "allow_single" switch instead to
allow for recognition of "--configreport <report_name> -S" as well as
single "-S" if needed.
Null pointer dereferences (FORWARD_NULL) /safe/guest2/covscan/LVM2.2.02.158/tools/reporter.c: 961 in _do_report_get_selection()
Null pointer dereferences (FORWARD_NULL) Dereferencing null pointer "single_args".
This patch adds structures and functions to reroute error and warning
logs to log report, if it's set.
There are 5 new functions:
- log_set_report
Set log report where logging will be rerouted.
- log_set_report_context
Set context globally so any report_cmdlog call will use it.
- log_set_report_object_type
Set object type globally so any report_cmdlog call will use it.
- log_set_report_object_name_and_id
Set object ID and name globally so any report_cmdlog call will use it.
- log_set_report_object_group_and_group_id
Set object group ID and name globally so any report_cmdlog call will use it.
These functions will be called during LVM command processing so any logs
which are rerouted to log report contain proper information about current
processing state.
lvm fullreport executes 5 subreports (vg, pv, lv, pvseg, seg) per each VG
(and so taking one VG lock each time) within one command which makes it
easier to produce full report about LVM entities.
Since all 5 subreports for a VG are done under a VG lock, the output is
more consistent mainly in cases where LVM entities may be changed in
parallel.
Add new --reportformat option and new report_format_init function that
checks this option and creates new report group accordingly, also
preparing log report handle and adding it to the report group just
created.
This is a preparation for new CMDLOG report type which is going to be
used for reporting LVM command log.
The new report type introduces several new fields (log_seq_num, log_type,
log_context, log_object_type, log_object_group, log_object_id, object_name,
log_message, log_errno, log_ret_code) as well as new configuration settings
to set this report type (report/command_log_sort and report/command_log_cols
lvm.conf settings).
This patch also introduces internal report_cmdlog helper function
which is a wrapper over dm_report_object to report command log via
CMDLOG report type and which is going to be used throughout the code
to report the log items.
Before this fix, when reporting 'lvm devtypes', the report was
initialized with incorrect reserved values - the ones used for
pvs/vgs/lvs report were used instead of NULL value (because devtypes
doesn't have any reserved values).
For example, trying to (incorrectly) use lv_name for the -S|--select
with lvm devtypes which doesn't have this field at all:
Before this patch (internal error issued):
$ lvm devtypes -S 'lv_name=lvol0'
Internal error: _check_reserved_values_supported: field-specific reserved value of type 0x0 for field not supported
Internal error: dm_report_init_with_selection: trying to register unsupported reserved value type, skipping report selection
DevType MaxParts Description
aoe 16 ATA over Ethernet
ataraid 16 ATA Raid
bcache 1 bcache block device cache
...
With this patch applied (correct error displayed about
unrecognized selection field):
$ lvm devtypes -S 'lv_name=lvol0'
Device Types Fields
-------------------
devtype_name - Name of Device Type exactly as it appears in /proc/devices. [string]
devtype_max_partitions - Maximum number of partitions. (How many device minor numbers get reserved for each device.) [number]
devtype_description - Description of Device Type. [string]
Special Fields
--------------
selected - Set if item passes selection criteria. [number]
help - Show help. [unselectable number]
? - Show help. [unselectable number]
Unrecognised selection field: lv_name
Selection syntax error at 'lv_name=lvol0'.
Use 'help' for selection to get more help.
Convert fields into using a single status ioctl call per LV.
This is a bit tricky since when there are more complicated
stacks, at this moment its undefined which values should be shown.
It's clear we need to cache more then single ioctl per LV,
but also we need to define more explicitely relation between
reported values for snapshots.
This patch is not a final state, rather a transitional step.
It should not be giving more 'worst' values then previous
many-ioctl-calls-per-lv solution.
Add support for active cache LV.
Handle --cachemode args validation during command line processing.
Rework some lvm2 internal to use lvm2 defined CACHE_MODE enums
indepently on libdm defines and use enum around the code instead
of passing and comparing strings.
When there are duplicate devices for a PV, one device
is preferred and chosen to exist in the VG. The other
devices are not used by lvm, but are displayed by pvs
with a new PV attr "d", indicating that they are
unchosen duplicate PVs.
The "duplicate" reporting field is set to "duplicate"
when the PV is an unchosen duplicate, and that field
is blank for the chosen PV.
We don't have any report field of this type yet. Return this patch into
the play if we really need that. Currenly we always report status
(result of "status" dm ioctl) for an LV as a whole where we choose
segment which represents the LV, not calling status for each possible
segment it contains - we don't need this now so I'm removing it to
not make the code more complex uselessly.
Specifying an output width of 0 now leads to a default minimum width
taken from the width of the column heading. (Most fields should use
this.)
Components of field names are generally separated by underscores (which
are optional at run-time). (Dropped 3 duplicate fields now covered by
this rule.)
Each field heading must be unique and generally doesn't have spaces
between words (which get capitalised) unless they are already short and
the fields are normally longer or clarity demands it.
The lv_full_ancestors reporting field is just like the existing
lv_ancestors field but it also takes into account any history and
indirect relations recorded.
All names for historical LVs are prefixed with '-' character to make clear
difference between live and historical LVs. The '-' can't be set by users
for live LV names during lvcreate hence we never get into a conflict with
the names that user defines for live LVs.
The lv_historical reporting field is a simple binary field that reports
whether an LV is historical one ("historical" value or value of "1" displayed)
or not (blank string "" or value of "0" displayed).
