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Fix and improve handling on sigint.
Always check for signal presence *before* calling of command,
so it will not call the command when break was hit.
If the command has been finished succesfully there is
no problem to mark the command ok and not report interrupt at all.
Fix cuple related stack; reports and assignments.
These settins are customizable by profiles:
allocation/thin_pool_zero
allocation/thin_pool_discards
allocation/thin_pool_chunk_size
activation/thin_pool_autoextend_threshold
activation/thin_pool_autoextend_percent
Previously, we have relied on UUIDs alone, and on lvmcache to make getting a
"new copy" of VG metadata fast. If the code which triggers the activation has
the correct VG metadata at hand (the version which is currently on disk), it can
now hand it to the activation code directly.
Move common code for changing activation state from
vgchange and lvchange to one function.
Fix the order of checks - so we always implicitelly
activate snapshots and thin volumes in exclusive mode,
and we do not allow local deactivation for them.
Keep the flag whether given thin pool argument has been given on command
line or it's been 'estimated'
Call of update_pool_params() must not change cmdline given args and
needs to know this info.
Since there is a need to move this update function into /lib, we cannot
use arg_count().
FIXME: we need some generic mechanism here.
For example, the old call and reference:
find_config_tree_str(cmd, "devices/dir", DEFAULT_DEV_DIR)
...now becomes:
find_config_tree_str(cmd, devices_dir_CFG)
So we're referring to the named configuration ID instead
of passing the configuration path and the default value
is taken from central config definition in config_settings.h
automatically.
To create an Embedding Area during PV creation (pvcreate or as part of
the vgconvert operation), we need to define the Embedding Area size.
The Embedding Area start will be calculated automatically by the tools.
This patch adds --embeddingareasize argument to pvcreate and vgconvert.
Extract restorable PV creation parameters from struct pvcreate_params into
a separate struct pvcreate_restorable_params for clarity and also for better
maintainability when adding any new items later.
The motivation to grab the global lock is to avoid a scan and metadata parsing
for each PV, but the cost of obtaining metadata is _mostly_ mitigated by having
lvmetad around. Not taking the global lock improves throughput when multiple pvs
or related commands are running in parallel, like in RHEV.
Remove no longer needed warning for unsuppoted discards
for non-power-2 lvcreate commands.
(Missed from the patch for the same update in lvchange made
by commit dde5a6c52b)
Configurable settings for thin pool create
if they are not specified on command line.
New supported lvm.conf options are:
allocation/thin_pool_chunk_size
allocation/thin_pool_discards
allocation/thin_pool_zero
Move common functions for lvcreate and lvconvert.
get_pool_params() - read thin pool args.
update_pool_params() - updates/validates some thin args.
It is getting complicated and even few more things will be
implemented, so to avoid reimplementing things differently
in lvcreate and lvconvert code has been splitted
into 2 common functions that allow some future extension.
Use log_warn to print non-fatal warning messages.
Use of log_error would confuse checker for testing
whether proper error has been reported for some real error.
Accept -q as the short form of --quiet.
Suppress non-essential standard output if -q is given twice.
Treat log/silent in lvm.conf as equivalent to -qq.
Review all log_print messages and change some to
log_print_unless_silent.
When silent, the following commands still produce output:
dumpconfig, lvdisplay, lvmdiskscan, lvs, pvck, pvdisplay,
pvs, version, vgcfgrestore -l, vgdisplay, vgs.
[Needs checking.]
Non-essential messages are shifted from log level 4 to log level 5
for syslog and lvm2_log_fn purposes.
In process_each_pv() if we haven't yet scanned and the PV appears
to be an orphan, we must scan the other PVs looking for mdas that
reference it to find out what VG it is in.
1. If the PV has no mdas, we must scan.
2. If the PV has an mda that is not ignored we do not need to scan.
3. If the PV has an mda that is ignored, we do need to scan.
This patch fixes case 3.
> pvs -o +mda_count,vg_mda_count /dev/loop[0123]
PV VG Fmt Attr PSize PFree #PMda #VMda
/dev/loop0 vg3 lvm2 a- 96.00m 96.00m 0 1
/dev/loop1 vg3 lvm2 a- 96.00m 96.00m 1 1
/dev/loop2 vg2 lvm2 a- 96.00m 96.00m 1 2
/dev/loop3 vg2 lvm2 a- 28.00m 28.00m 1 2
Before:
> pvs /dev/loop2 /dev/loop3 /dev/loop0 /dev/loop1 --unbuffered
PV VG Fmt Attr PSize PFree
/dev/loop2 lvm2 a-- 100.00m 100.00m
/dev/loop3 vg2 lvm2 a-- 28.00m 28.00m
/dev/loop0 lvm2 a-- 100.00m 100.00m
/dev/loop1 vg3 lvm2 a-- 96.00m 96.00m
After:
> pvs /dev/loop2 /dev/loop3 /dev/loop0 /dev/loop1 --unbuffered
PV VG Fmt Attr PSize PFree
/dev/loop2 vg2 lvm2 a-- 96.00m 96.00m
/dev/loop3 vg2 lvm2 a-- 28.00m 28.00m
/dev/loop0 vg3 lvm2 a-- 96.00m 96.00m
/dev/loop1 vg3 lvm2 a-- 96.00m 96.00m
We're refererring to 'activation' all over the code and we're talking
about 'LVs being activated' all the time so let's use 'activation/activate'
everywhere for clarity and consistency (still providing the old
'available' keyword as a synonym for backward compatibility with
existing environments).
Read lvm.conf setting for monitoring for each command. So we should not
activate monitoring if the default compilation is set to monitor during
lvconvert commnads.
Patch also removes check for clustered VG and allows to disable monitoring
for clustered VG with the assumption, the problem with monitoring and dmeventd
flag passing for INGNORE is already fixed.
We want to keep this logic -
when LV is extend - extend the LV by at least given amount,
when LV is reduced - reduce the LV by at most given amount.
So for this the rounding needs to be used.
Current logic which seems to satisfy give rule is to round up all
extent values for LV resize upward except for values with '-' sign
that are round downward.
This patch also fixes the problem when lvextend --use-polices tried
to extend LV the by i.e. 20% - but the resulting 20% were smaller
the extent size thus before this patch no extension happened.
Remove DM_THIN_ERROR_DEVICE_ID from API.
Remove API warning.
Drop code that was using DM_THIN_ERROR_DEVICE_ID (already commented)
Remove debug message which slipped in through some previous commit.
Since activation of pool is now independent on thin activation,
user may do whatever he needs - thought preferable thin should stay alive,
but it it will be found inactivate, update_pool will bring the pool up.
To ensure we properly handle LV cluster locking - explicitely do
not allow to change the availability of the thin pool that is in use
for some thin LV.
As soon as the thin volume is created the only way to activate pool
is via implicit dependency.
Ignore thinpool open count for lv/vgchange operations.
