1
0
mirror of git://sourceware.org/git/lvm2.git synced 2025-01-11 09:18:25 +03:00
Commit Graph

2684 Commits

Author SHA1 Message Date
Zdenek Kabelac
9abe5853b2 Thin cleanup
Reorder condition so the code is better readable (and shorter).
2012-01-20 10:56:30 +00:00
Zdenek Kabelac
a563ef56b8 Drop hack in segtype reporting
Since striped name function knows when to report 'linear' instead of
'stripe' type name - drop it from this place.

This fixes problem when reporting segtype e.g. for thin-pool which
is also using area_count=1 to store thin data device reference.

It also returns properly strduped memory instead of badly casted const char*.
2012-01-20 10:55:28 +00:00
Alasdair Kergon
3e8e48f9d0 improve comment 2012-01-20 03:46:52 +00:00
Jonathan Earl Brassow
6bcd3263c2 Preserve exclusive activation of cluster mirror when converting.
This patch to the suspend code - like the similar change for resume -
queries the lock mode of a cluster volume and records whether it is active
exclusively.  This is necessary for suspend due to the possibility of
preloading targets.  Failure to check to exclusivity causes the cluster target
of an exclusively activated mirror to be used when converting - rather than
the single machine target.
2012-01-20 00:27:18 +00:00
Zdenek Kabelac
62fa6a8289 Thin indent update 2012-01-19 15:42:18 +00:00
Zdenek Kabelac
8aa21348d1 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
8d3933945a Thin add new display field for lvs
New field Data% is able to display info about
thin_pool, thin, snapshot and has generic meaning here.

Simple Time/Host field are here to display host and time creation.
2012-01-19 15:34:32 +00:00
Zdenek Kabelac
06849a0d6a 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
491d106031 Thin add function to read thin volume percent
This value returns percentage of 'mapped' size compared with total LV size.
(Without passed seg pointer it return highest mapped size - but it's
not used yet.)
2012-01-19 15:27:54 +00:00
Zdenek Kabelac
9fae965546 Thin updated support for thin pool percent
Support to check also for metadata percent
(By checking whether seg pointer is set)
2012-01-19 15:25:37 +00:00
Zdenek Kabelac
57979a273c Thin rename seg var pool_metadata_lv to metadata_lv
Better fits the code.
2012-01-19 15:23:50 +00:00
Zdenek Kabelac
a1224b2da8 Thin use consistentely metadata
Do not shortcut to 'meta' and stay with 'metadata'
Also matches kernel doc for dm API then.
2012-01-19 15:21:23 +00:00
Zdenek Kabelac
440a4d4c76 Thin rename local static
Use '_' for local const char.
2012-01-19 15:19:18 +00:00
Zdenek Kabelac
3a55acee5b Rename internal macro to match signess
Since _read_int64 called dm_config_get_uint64, rename it to
less confusing _read_uint64.
2012-01-19 15:17:46 +00:00
Alasdair Kergon
55bdb63f34 Make error message hit when preallocated memlock memory exceeded clearer. 2012-01-12 18:29:07 +00:00
Alasdair Kergon
75fe459800 Show read-only activation in display tools. 2012-01-12 16:58:43 +00:00
Peter Rajnoha
5bafde0b6f Missing const.
"warning: assignment discards 'const' qualifier..."
2012-01-12 09:08:55 +00:00
Alasdair Kergon
642da16c33 Add activation/read_only_volume_list to override LV permission in metadata. 2012-01-12 01:51:56 +00:00
Alasdair Kergon
661f154b66 Give priority to emcpower devices with duplicate PVIDs. 2012-01-11 20:38:42 +00:00
Alasdair Kergon
ee1e9fcd22 Add dm_uuid_prefix/dm_set_uuid_prefix for non-lvm users to override hard-coded
LVM- prefix.

Try harder not to leave stray empty devices around (locally or remotely) when
reverting changes after failures while there are inactive tables.
2012-01-10 02:03:31 +00:00
Zdenek Kabelac
9e1ccf81c7 Drop extra stat before open of device
Since the !(dev->flags & DEV_REGULAR) code path just called
dev_name_confirmed() which has just called 'stat()' inside,
remove duplicate second stat() call here.
2011-12-21 13:24:24 +00:00
Zdenek Kabelac
88f8cbbb2e Do not lstat common path prefix
When both path have identical prefix i.e. /dev/disk/by-id
skip  2 x lstat() for /dev  /dev/disk /dev/disk/by-id
and directly lstat() only different part of the path.

Reduces amount of lstat calls on system with lots of devices.
2011-12-21 13:21:09 +00:00
Zdenek Kabelac
235028bf0f Add common initialization code for struct device
Avoid duplicate code and add _dev_init() where all common
member values are initialized.
2011-12-21 13:17:54 +00:00
Zdenek Kabelac
93bb35fd2b Always zalloc device structure
Since there is zalloc behind the macro, put 'z' into the name.
Make the 'use_malloc' code path also using zalloc() call,
so it also give zeroed area.
2011-12-21 13:14:54 +00:00
Zdenek Kabelac
d3923ece3d Thin automatic policy based extension 2011-12-21 13:10:52 +00:00
Zdenek Kabelac
58044875a8 Thin add lv_thin_pool_percent 2011-12-21 13:10:05 +00:00
Zdenek Kabelac
88bf72d388 Thin add dev_manager_thin_pool_percent
dev manager function to read percent info from thin pool.
2011-12-21 13:09:33 +00:00
Zdenek Kabelac
59bcd5a1cf Thin add dmeventd support
This is basic version with still few unresolved issue mainly in case,
when the pool resize is failing.
2011-12-21 13:08:11 +00:00
Zdenek Kabelac
1b9a70b6af Check lv pointer for NULL before derefence. 2011-12-21 12:59:22 +00:00
Zdenek Kabelac
d0b237f46c Thin remove unused code 2011-12-21 12:56:45 +00:00
Zdenek Kabelac
0857bdba0f Thin move layer suffix into local static const 2011-12-21 12:55:22 +00:00
Zdenek Kabelac
a1e1561a91 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
Zdenek Kabelac
2b61011439 Allow empty strings for description and creation_host config fields 2011-12-21 12:49:00 +00:00
Alasdair Kergon
14a165bf3f 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
Petr Rockai
e4de6d2ee0 Make a cleaner split between config tree and config file functionality. Move
the latter out of libdm.
2011-12-18 21:56:03 +00:00
Petr Rockai
55f7917356 Fix a compiler warning. 2011-12-12 00:08:23 +00:00
Petr Rockai
bd7ec82f64 Move dm_config_write out of libdm, back to lib/config, as config_write. 2011-12-11 23:18:20 +00:00
Alasdair Kergon
9f2e5eee45 update FIXMEs 2011-12-10 00:47:23 +00:00
Alasdair Kergon
042d98b2d2 When dropping the VG metadata from the cache during a VG revert, we must
reset the 'precomitted' flag, just as we'd clear if we next did a 'commit'.
2011-12-08 23:18:00 +00:00
Alasdair Kergon
721119a388 Only use built-in stack size in clvmd - ignore lvm.conf. 2011-12-08 21:24:08 +00:00
Alasdair Kergon
5495ef8217 Don't pass LCK_LOCAL to clvmd - it's unused.
Pass LCK_CLUSTER_VG in args[0] instead of args[1].
2011-12-08 18:19:05 +00:00
Alasdair Kergon
a830fcbc34 Update comments. CLUSTER_VG belongs firmly to args[0]. 2011-12-08 18:09:48 +00:00
Jonathan Earl Brassow
49d06db518 Add policy based automated repair of RAID logical volumes
The RAID plug-in for dmeventd now calls 'lvconvert --repair' to address failures
of devices in a RAID logical volume.  The action taken can be either to "warn"
or "allocate" a new device from any spares that may be available in the
volume group.  The action is designated by setting 'raid_fault_policy' in
lvm.conf - the default being "warn".
2011-12-06 19:30:15 +00:00
Milan Broz
15af345602 Fix FIXME and comment :-) 2011-12-03 11:36:10 +00:00
Milan Broz
cbea400d06 Switch locking bits to match RHEL5 version.
FIXME:
There is a problem with overloaded bit 0x80 in locking flag,
the bit flags array must be extended or changed.
2011-12-03 11:34:35 +00:00
Jonathan Earl Brassow
80924bc9ff Don't allow two images to be split and tracked from a RAID LV at one time
Also, don't allow a splitmirror operation on a RAID LV that is already tracking
a split, unless the operation is to stop the tracking and complete the split.
Example:
~> lvconvert --splitmirrors 1 --trackchanges vg/lv /dev/sdc1
# Now tracking changes - image can be merged back or split-off for good
~> lvconvert --splitmirrors 1 -n new_name vg/lv /dev/sdc1
# ^ Completes split ^

If a split is performed on a RAID that is tracking an already split image and
PVs are provided, we must ensure that
 1) the already split LV is represented in the PVs
 2) we are careful to split only the tracked image
2011-12-01 00:21:04 +00:00
Jonathan Earl Brassow
64b817cbc6 Do not allow users to change the name of RAID sub-LVs or the name of the
RAID LV if it is tracking changes for a split image.
2011-12-01 00:09:34 +00:00
Petr Rockai
8d884c5894 Update comment on LCK_*DMEVENTD*. 2011-11-30 17:02:37 +00:00
Petr Rockai
7dd63d8ff2 Fix clvmd to respect DMEVENTD_MONITOR_IGNORE. Fixes a bug where dmeventd
actions caused clvmd to turn off monitoring of the volume causing the action.
2011-11-30 17:00:57 +00:00
Jonathan Earl Brassow
204aaf2253 The LV_REBUILD flag is not internal - bad comments in metadata-exported.h updated 2011-11-30 02:20:13 +00:00