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Commit Graph

38 Commits

Author SHA1 Message Date
Peter Rajnoha
73f1d444c8 pv: issue different message of different type when we're overwriting existing PV header instead of creating a new one
Scenario:

$ pvcreate /dev/sda
  Physical volume "/dev/sda" successfully created

We're adding the PV to a VG.

Before this patch:
$ vgcreate vg /dev/sda
  Physical volume "/dev/sda" successfully created
  Volume group "vg" successfully created

With this path applied:
$ vgcreate vg /dev/sda
  Volume group "vg" successfully created

...and verbose log containing: "Physical volume "/dev/sda" successfully written"
2016-02-15 12:44:46 +01:00
Peter Rajnoha
4361543f3e refactor: rename struct pv_to_create --> struct pv_to_write
We'll use this struct in subsequent patches for PVs which should
be rewritten, not just created. So rename struct pv_to_create to
struct pv_to_write for clarity.
2016-02-15 12:44:45 +01:00
Zdenek Kabelac
fcbef05aae doc: change fsf address
Hmm rpmlint suggest fsf is using a different address these days,
so lets keep it up-to-date
2016-01-21 12:11:37 +01:00
Zdenek Kabelac
d9faf85987 cleanup: rename vg_ondisk to vg_committed
Unifying terminology.

Since all the metadata in-use are ALWAYS on disk - switch
to terminology  committed and precommitted.

Patch has no functional change inside.
2015-11-25 11:11:21 +01:00
David Teigland
fe70b03de2 Add lvmlockd 2015-07-02 15:42:26 -05:00
Petr Rockai
756d027da5 metadata: Explain the pvs_outdated field in struct volume_group. 2015-06-10 16:17:45 +02:00
Petr Rockai
611c8b6d29 metadata: Add pvs_outdated to struct volume_group.
This is a list of PVs that should have their MDAs wiped because they carry
outdated metadata (that used to belong to the VG they are attached to).
2015-05-20 19:46:14 +02:00
Peter Rajnoha
8759f7d755 metadata: vg: add removed_lvs field to collect LVs which have been removed
Do not keep dangling LVs if they're removed from the vg->lvs list and
move them to vg->removed_lvs instead (this is actually similar to already
existing vg->removed_pvs list, just it's for LVs now).

Once we have this vg->removed_lvs list indexed so it's possible to
do lookups for LVs quickly, we can remove the LV_REMOVED flag as
that one won't be needed anymore - instead of checking the flag,
we can directly check the vg->removed_lvs list if the LV is present
there or not and to say if the LV is removed or not then. For now,
we don't have this index, but it may be implemented in the future.
2015-03-24 08:43:08 +01:00
David Teigland
1e65fdd9ba system_id: make new VGs read-only for old lvm versions
Previous versions of lvm will not obey the restrictions
imposed by the new system_id, and would allow such a VG
to be written.  So, a VG with a new system_id is further
changed to force previous lvm versions to treat it as
read-only.  This is done by removing the WRITE flag from
the metadata status line of these VGs, and putting a new
WRITE_LOCKED flag in the flags line of the metadata.

Versions of lvm that recognize WRITE_LOCKED, also obey the
new system_id.  For these lvm versions, WRITE_LOCKED is
identical to WRITE, and the rules associated with matching
system_id's are imposed.

A new VG lock_type field is also added that causes the same
WRITE/WRITE_LOCKED transformation when set.  A previous
version of lvm will also see a VG with lock_type as read-only.

Versions of lvm that recognize WRITE_LOCKED, must also obey
the lock_type setting.  Until the lock_type feature is added,
lvm will fail to read any VG with lock_type set and report an
error about an unsupported lock_type.  Once the lock_type
feature is added, lvm will allow VGs with lock_type to be
used according to the rules imposed by the lock_type.

When both system_id and lock_type settings are removed, a VG
is written with the old WRITE status flag, and without the
new WRITE_LOCKED flag.  This allows old versions of lvm to
use the VG as before.
2015-03-05 09:50:43 -06:00
Alasdair G Kergon
4e6f3e5162 archives: Preserve format type in file.
format_text processes both lvm2 on-disk metadata and metadata read
from other sources such as backup files.  Add original_fmt field
to retain the format type of the original metadata.
Before this patch, /etc/lvm/archives would contain backups of
lvm1 metadata with format = "lvm2" unless the source was lvm1 on-disk
metadata.
2015-03-04 00:30:26 +00:00
Alasdair G Kergon
df227be37c lvm1: Reenable sys ID.
Move the lvm1 sys ID into vg->lvm1_system_id and reenable the #if 0
LVM1 code.  Still display the new-style system ID in the same
reporting field, though, as only one can be set.
Add a format feature flag FMT_SYSTEM_ON_PVS for LVM1 and disallow
access to LVM1 VGs if a new-style system ID has been set.
Treat the new vg->system_id as const.
2015-02-23 23:03:52 +00:00
David Teigland
8cdec4c434 system_id: use for VG ownership
See included lvmsystemid(7) for full description.
2015-02-13 10:10:27 -06:00
Alasdair G Kergon
5e6e2d6b1b vgcreate: Permit non-power-of-2 extent sizes.
Relax validation to permit extent sizes > 128KB that are not powers of 2
with lvm2 format.  Existing code was already capable of handling this.
2014-10-14 18:12:15 +01:00
Zdenek Kabelac
090e81281f lvmetad: more reuse precommit buffer
This patch moves more allocation to vg_write
(as started in 8c878438f5)
TODO: relocate also communication.
(in-release update)
2014-03-01 14:08:58 +01:00
Zdenek Kabelac
8c878438f5 metadata: move vg parsing to vg_write
Parsing vg structure during  supend/commit/resume may require a lot of
memory - so move this into vg_write.

FIXME: there are now multiple cache layers which our doing some thing
multiple times at different levels. Moreover there is now different
caching path with and without lvmetad - this should be unified
and both path should use same mechanism.
2014-02-24 21:08:53 +01:00
Zdenek Kabelac
30a81e5989 cleanup: self compilable headers 2013-12-12 13:28:19 +01:00
Zdenek Kabelac
460d0254eb thin: add pool metadata spare lv support
Add support for pool's metadata spare volume.
2013-07-18 18:22:43 +02:00
Peter Rajnoha
9f6cfc9de4 report: add vg_profile and lv_profile to report the profile attached to VG/LV
vgs -o vg_profile ...
lvs -o lv_profile ...
2013-07-02 15:22:12 +02:00
Peter Rajnoha
c5e6bc393e metadata: read VG/LV profile name from metadata if it exists and load it
This is per VG/LV profile loading on demand. The profile itself is saved
in struct volume_group/logical_volume as "profile" field so we can
reference it whenever needed.
2013-07-02 15:19:09 +02:00
Petr Rockai
5d5f2306bd Add and track an "ondisk" pointer to struct volume_group.
This allows us to get the current on-disk version of the metadata whenever we
have the current in-flight version, without a recourse to scanning or lvmcache.
2013-06-10 17:26:29 +02:00
Zdenek Kabelac
52f2f3eae4 Add free_orphan_vg
Move commod code to destroy orphan VG into free_orphan_vg() function.
Use orphan vgmem for creation of PV lists.
Remove some free_pv_fid() calls (FIXME: check all of them)
FIXME: Check whether we could merge release_vg back again for all VGs.
2012-02-13 11:03:59 +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
4079a8f298 Avoid lvextend to overflow
Add extra check to extent_count overflow.
Use internal define MAX_EXTENT_COUNT instead UINT32_MAX.
2011-11-04 22:49:53 +00:00
Zdenek Kabelac
bb115a7a6c Cache and share generated VG structs
Extend vginfo cache with cached VG structure. So if the same metadata
are use, skip mda decoding in the case, the same data are in use.
This helps for operations like activation of all LVs in one VG,
where same data were decoded giving the same output result.

Patch adds 1-to-1 connection between volume_group and lvmcache_vginfo.
2011-08-11 17:24:23 +00:00
Zdenek Kabelac
530b00a652 Just add new lines between header comment 2011-08-10 20:26:41 +00:00
Zdenek Kabelac
077a6755ff Replace free_vg with release_vg
Move the free_vg() to  vg.c  and replace free_vg  with release_vg
and make the _free_vg internal.

Patch is needed for sharing VG in vginfo cache so the release_vg function name
is a better fit here.
2011-08-10 20:25:29 +00:00
Alasdair Kergon
3cac20f850 Defer writing PV labels to vg_write.
Store label_sector only in struct physical_volume.
2011-06-01 19:29:31 +00:00
Alasdair Kergon
5510b4e7d7 test update without WHATS_NEW to check it gives warning now 2011-04-29 19:06:17 +00:00
Zdenek Kabelac
3019419e95 Refactor vg allocation code
Create new function alloc_vg() to allocate VG structure.

It takes pool_name (for easier debugging).
and also take vg_name to futher simplify code.

Move remainder of _build_vg_from_pds  to _pool_vg_read
and use vg memory pool for import functions.
(it's been using smem -> fid mempool -> cmd mempool)
(FIXME: remove mempool parameter for import functions and use vg).

Move remainder of the _build_vg to _format1_vg_read
2011-03-10 12:43:29 +00:00
Zdenek Kabelac
9b30dfb967 Use const char * for name and old_name in vg
Switch to use const char pointers to avoid changes of these structure
members and having better control over, were these members could
be modified.
2010-12-20 13:40:46 +00:00
Alasdair Kergon
eb82bd0525 Extend cling allocation policy to recognise PV tags (cling_by_tags).
Add allocation/cling_tag_list to lvm.conf.
2010-11-09 12:34:40 +00:00
Alasdair Kergon
eacd3a0916 fix header #defines 2010-10-25 12:01:59 +00:00
Dave Wysochanski
0ca1492ca5 Fix copyright dates on new files lib/metadata/{lv|vg|pv}.[ch]. 2010-09-30 20:47:18 +00:00
Dave Wysochanski
b1ef78d000 Add supporting functions vg_name_dup, vg_fmt_dup, vg_system_id_dup.
Add supporting functions for vg_name, vg_fmt, vg_system_id.
Append "_dup" to end of supporting functions to make clear the strings
are dup'd and to avoid namespace conflict with vg_name.
2010-09-30 14:08:33 +00:00
Dave Wysochanski
c508945ca9 Add pv_tags_dup, vg_tags_dup, lv_tags_dup functions that call tags_format_and_copy. 2010-09-30 14:08:19 +00:00
Dave Wysochanski
254d672dcc Add pv_uuid_dup, vg_uuid_dup, and lv_uuid_dup, and call id_format_and_copy.
Add supporting functions for pv_uuid, vg_uuid, and lv_uuid.
Call new function id_format_and_copy.  Use 'const' where appropriate.
Add "_dup" suffix to indicate memory is being allocated.
Call {pv|vg|lv}_uuid_dup from lvm2app uuid functions.
2010-09-30 14:07:47 +00:00
Dave Wysochanski
14663348d0 Add {pv|vg|lv}_attr_dup() functions and refactor 'disp' functions.
Move the creating of the 'attr' strings into a common function so
they can be called from the 'disp' functions as well as the new
'get' property functions.
Add "_dup" suffix to indicate memory is allocated.
Refactor pvstatus_disp to take pv argument and call pv_attr_dup().
2010-09-30 13:52:55 +00:00
Dave Wysochanski
e32e2eb011 Add lib/metadata/vg.[ch] and lib/metadata/lv.[ch].
These got missed when git cvsexportcommit was used.
2010-09-30 13:16:55 +00:00