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Commit Graph

363 Commits

Author SHA1 Message Date
Jonathan Earl Brassow
0e92b70f71 *** empty log message *** 2012-02-22 17:14:38 +00:00
Zdenek Kabelac
d81498a824 Initialize dmeventd monitoring for every command
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.
2012-02-15 15:18:43 +00:00
Zdenek Kabelac
73e62cdc11 Add internal error for unsupported code paths
Patch mainly helps static analyzers to better work with code paths
lvm code should never trigger.
2012-02-13 11:25:56 +00:00
Alasdair Kergon
2a434c479d missing error mesg 2012-02-12 21:37:03 +00:00
Peter Rajnoha
5fa417a9c0 Stop processing lvextend if trying to extend a mirror that is being recovered.
Missing correct return value in lv_extend fn.
2012-02-09 15:13:42 +00:00
Zdenek Kabelac
a7e2da0585 Thin add pool_below_threshold
Test both data and metadata percent usage.
2012-02-08 13:05:38 +00:00
Zdenek Kabelac
94f88a4f14 Fix test for lv_snapshot_percent
Do not check for PERCENT_MERGE_FAILED if the lv_snapshot_percent() failed.
(test for snap_percent would be testing uninitialized value).
2012-02-08 13:02:07 +00:00
Alasdair Kergon
1368dc905a lost line 2012-02-01 02:11:43 +00:00
Alasdair Kergon
72abf1d880 Track unreserved space for all alloc policies and then permit NORMAL to place
log and data on same single PV.
2012-02-01 02:10:45 +00:00
Zdenek Kabelac
7012268499 Thin for_each_sub_lv
Adapt to scan thin dependency LVs
2012-01-26 21:39:32 +00:00
Zdenek Kabelac
9b1fe5a062 Thin clear stacked message for thin pool
Before removing thin pool LV always make sure, stacked message
for previous run are cleared - but allow to remove any
device that should have been created
(i.e. creation of snapshot failed - so the message for snapshot creation
may be replaced with delete message within unfinished transaction).

Also commit messages after lv remove - so free space is released in pool.
2012-01-25 11:27:42 +00:00
Zdenek Kabelac
c771a70882 Thin correct activation order
When the message is passed only in resume path the order needs
to be corrected.
2012-01-25 09:15:44 +00:00
Zdenek Kabelac
3dadb176ce Thin use suspend/resume_lv_origin
Use origin_only support for thin volume when thin snapshot is created.
2012-01-25 09:14:25 +00:00
Zdenek Kabelac
1dede50c85 Thin check for lv_thin_pool_percent error status
Check has been missing.
2012-01-25 09:02:35 +00:00
Zdenek Kabelac
0926438aad Thin prevent removal of its data and metadata LVs
LVs cannot be removed while there are linked to thin pool.
(Gives better error message, than validation).
2012-01-25 08:57:25 +00:00
Alasdair Kergon
3f61871f38 Caller is still entitled to reference an LV that's unlinked, so don't
tamper with struct contents.
2012-01-24 14:53:59 +00:00
Milan Broz
095d95d0a8 Properly show LV removal message.
(Fix regression in commit 6e181ba96d)
2012-01-24 14:15:52 +00:00
Alasdair Kergon
46c67b5279 Use chunk_size consistently for thin_pool within LVM. 2012-01-24 00:55:03 +00:00
Mike Snitzer
fc0f2d5031 Prompt if request is made to remove a snapshot whose "Merge failed". 2012-01-20 22:04:16 +00:00
Mike Snitzer
27e21a4adc Allow removal of an invalid snapshot that was to be merged on next activation.
Don't allow a user to merge an invalid snapshot.
2012-01-20 22:03:48 +00:00
Zdenek Kabelac
f82bddb76c Thin disable snapshot creation when pool is over the threshold.
Since snapshot needs to suspend origin - it might lead to pool userspace
deadlock (as the pool will wait for new space in case it would be overfilled,
but dmeventd would not be able to resize it, as the lvcreate operation would
have kept the VG lock.)
To minimize the risk of such scenario - we prevent to create new snapshot
in case we are over the threshold - but beware, there is still small timewindow,
so keep threshold at some reasonable level!
2012-01-19 15:39:41 +00:00
Zdenek Kabelac
53d7985fa1 Add support to keep info about creation time and host for each LV
Basic support to keep info when the LV was created.
Host and time is stored into LV mda section.

FIXME: Current version doesn't support configurable string via lvm.conf
and used fixed version strftime "%Y-%m-%d %T %z".
2012-01-19 15:31:45 +00:00
Zdenek Kabelac
d8106dfee2 Thin rename seg var pool_metadata_lv to metadata_lv
Better fits the code.
2012-01-19 15:23:50 +00:00
Zdenek Kabelac
f582793f1b Thin rename internal thin pool segment
Use matching name as kernel target - useful when function like
_percent is using this for validation.
2011-12-21 12:54:19 +00:00
Alasdair Kergon
66e5b7f53c Reinstate support for format1 snapshots, but issue deprecated warning.
I anticipate removing support for snapshots with lvm1-formatted metadata in a
future release.
2011-12-20 00:02:18 +00:00
Zdenek Kabelac
37f274ced9 Query before removing inactive snapshots
Removal of an inactive origin removes also all related snapshots.

When we now support 'old' external snapshots with thin volumes,
removal of pool will not only drop all thin volumes, but as
a consequence also all snapshots - which might be seen a bit
unexpected for the user - so add a query to confirm such action.

lvremove -f will skip the prompt.
2011-11-18 19:25:20 +00:00
Zdenek Kabelac
91e4512619 Adjusted mirror region size only for mirrors and raids
Update region_size only for mirror and raid targets.
This fixes warning messages when vg is using small
extent size like 1KiB and no mirror/raid is created,
but the user still got the message:

$> vgcreate -s 1K vg  <pvs>
$> lvcreate -L10K vg
Using reduced mirror region size of 4 sectors
2011-11-15 17:32:12 +00:00
Zdenek Kabelac
5f129d15b1 Thin update prompt message
Enhance message with info about how many thin volumes are going to
be removed with thin pool removal.
2011-11-15 17:29:52 +00:00
Zdenek Kabelac
8542953f74 Reorder AND test condition
Take the easiest condition for checking first since they must
apply all together, check local conditions first before doing
more expensive tests.
2011-11-15 17:27:41 +00:00
Zdenek Kabelac
25de8ca372 Thin supports only thin volumes as snapshot origins
It's currently of the scope to properly solve the snapshoting
of internal thin devs so prevent non-toplevel snapshots here.
2011-11-15 17:23:51 +00:00
Zdenek Kabelac
dd0c58c69b Add missing stack reporting
also remove unneeded {}
2011-11-12 22:53:23 +00:00
Zdenek Kabelac
3af072cc63 Thin use items iterator and stack reporting 2011-11-12 22:52:18 +00:00
Zdenek Kabelac
651ef6be82 Missing stack printing 2011-11-12 22:51:20 +00:00
Zdenek Kabelac
6e89eb9a52 Small comment and indent updates 2011-11-10 12:43:05 +00:00
Zdenek Kabelac
f201498f99 Thin test min thin_pool size for at least 1 chunk 2011-11-10 12:42:36 +00:00
Zdenek Kabelac
39fc633957 Thin align volume size on chunk boundary size
If the extent_size is smaller then the chunk_size we may try
to find better aligment (wasting less space).

i.e. using  4KB extent_size and  64KB chunk size will
lead to creation of 64KB aligned thin volume.
2011-11-10 12:42:15 +00:00
Zdenek Kabelac
74e53e8bc0 Thin disable pool create without activation 2011-11-10 12:39:01 +00:00
Alasdair Kergon
3da4ed712e Must not override alloc policy specified by user. 2011-11-07 13:54:54 +00:00
Zdenek Kabelac
97d7e5aedb Thin supports snapshots
Full support for thin snapshots.
Create and remove is supported.

TODO: lvconvert support is not yes available.
2011-11-07 11:03:47 +00:00
Zdenek Kabelac
87371d48cc Thin revert code for exclusive pool activation
There are no limits on thin-pool activation now.
Revert code that is no longer needed.
2011-11-07 10:58:13 +00:00
Zdenek Kabelac
83baa0b778 Thin pool allocation simplified
Support allocation of metadata from the same PV, if the VG
is build only from one PV.

As thinp is not mirror - we do not require 2 PVs
for basic thin usage as user is losing only perfomance.
2011-11-04 22:45:52 +00:00
Zdenek Kabelac
bd15208cd7 Thin add thin_pool_metadata_require_separate_pvs
Allow to set different policy for pool from mirrors.
2011-11-04 22:44:21 +00:00
Zdenek Kabelac
b8cac455bd Thin supports poolmetadatasize setting
Add option to set pool metadatasize.
For passing size parameter reuse region_size.
2011-11-04 22:43:10 +00:00
Alasdair Kergon
13dc67cda7 Add missing lvrename mirrored log recursion in for_each_sub_lv. 2011-11-04 01:31:23 +00:00
Zdenek Kabelac
9aa24bd034 Thin no device is created - so nothing to revert here 2011-11-03 15:46:51 +00:00
Zdenek Kabelac
92384bfd0b Thin using update_pool_lv
Replace detach_pool_messages with update_pool_lv.
Move creation code from to 'if' condition into 1.
Ensure creation has finished all previous message operations.
2011-11-03 14:56:20 +00:00
Zdenek Kabelac
1f5c98270d Thin code cleanup
Use iterate_items for list processing.
2011-11-03 14:36:40 +00:00
Zdenek Kabelac
7654abc26f Thin creation without activation
All thins are created with the next activation and VG is updated
without messages. Only some basic commands works.
(i.e. lvcreate -an  -V10 -T mvg/pool)
There can be some combination to confuse this system.

This functionality for snapshots is going to be interesting.
2011-10-30 22:07:38 +00:00
Zdenek Kabelac
f0df05e1dd Cleanup unsuccessfully created thin LV
If something fails during creation of thin LV remove such LV
and deactivate in case it's been already tried to activate
(i.e. thin kernel driver fails for some reason.)
2011-10-30 22:02:18 +00:00
Zdenek Kabelac
96279ac1c0 Make detach_pool_message visible for tools
Move there also vg_write and vg_commit.
2011-10-30 22:01:39 +00:00