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57 Commits

Author SHA1 Message Date
Alasdair Kergon
46c67b5279 Use chunk_size consistently for thin_pool within LVM. 2012-01-24 00:55:03 +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
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
72ff89d279 Always use vg memory pool for allocated lv segment 
Remove mem pool parameter from alloc_lv_segment()
Since we should always allocate LV segment from the vg mempool.
 2011-10-23 16:02:01 +00:00
Zdenek Kabelac
3f53c059e9 Add _BLOCK_ to define 
Use DM_THIN_MIN_DATA_BLOCK_SIZE and
DM_THIN_MAX_DATA_BLOCK_SIZE to make it more obvious, for which
this define is useful in thin API.
 2011-10-20 10:28:41 +00:00
Zdenek Kabelac
565a4bfc49 Move defines to header 
Make limits for thin data_block_size and device_id part of public API.

FIXME: read them possible from some kernel header file in the future ?
But we may need to support different values for different versions ?
 2011-10-06 11:05:56 +00:00
Zdenek Kabelac
38796c3d47 Fix bad error message for thinp validation 2011-09-29 09:03:36 +00:00
Zdenek Kabelac
aebf2d5cdc Add experimental code for activation of thinp targets 
No dm messages yes - just a base functionality in the steps of other targets.
For now usable only for debugging and tracing.
 2011-09-29 08:56:38 +00:00
Zdenek Kabelac
94147f3f29 Trim spaces on EOL 2011-09-16 11:53:14 +00:00
Alasdair Kergon
ef78ebf35a lvcreate/remove thin_pool and thin volumes (--driverloaded n only) 2011-09-08 16:41:18 +00:00
Alasdair Kergon
bb6f9b10db pool attach fns & more field renaming 2011-09-06 22:43:56 +00:00
Alasdair Kergon
9ac61d2ba2 lvcreate parsing for thin provisioning. 
The rest is incomplete so this isn't usable yet.
 2011-09-06 00:26:42 +00:00
Jonathan Earl Brassow
cac52ca4ce Add basic RAID segment type(s) support. 
Implementation described in doc/lvm2-raid.txt.

Basic support includes:
- ability to create RAID 1/4/5/6 arrays
- ability to delete RAID arrays
- ability to display RAID arrays
Notable missing features (not included in this patch):
- ability to clean-up/repair failures
- ability to convert RAID segment types
- ability to monitor RAID segment types
 2011-08-02 22:07:20 +00:00
Milan Broz
4fb39ae074 Validate mirror segments size 
Currently some operation with striped mirrors lead
to corrupted metadata, this patch just add detection of such
situation.

Example:
# lvcreate -i2 -l10 -n lvs vg_test
# lvconvert -m1 vg_test/lvs

# lvreduce -f -l1 vg_test/lvs
  Reducing logical volume lvs to 4.00 MiB
  Segment extent reduction 9not divisible by #stripes 2
  Logical volume lvs successfully resized

# lvremove vg_test/lvs
  Segment extent reduction 1not divisible by #stripes 2
  LV segment lvs:0-4294967295 is incorrectly listed as being used by LV lvs_mimage_0
  Internal error: LV segments corrupted in lvs_mimage_0.
 2011-06-09 19:36:16 +00:00
Zdenek Kabelac
651cae3c5c Replicator: check replicator segment 
Check for possible problems within replicator structures.
Used also by vg_validate.
 2010-05-21 12:43:02 +00:00
Zdenek Kabelac
8fea97b7e7 Replicator: base lvm2 support 
Adding configure.in support for Replicators.
Adding basic lib lvm support for Replicators.
Adding flags REPLICATOR and REPLICATOR_LOG.
Adding segments SEG_REPLICATOR and SEG_REPLICATOR_DEV.
Adding basic methods for handling replicator metadata.
 2010-05-21 12:36:30 +00:00
Alasdair Kergon
1485ce69c4 Permit mimage LVs to be striped in lvcreate and lvresize. 2010-04-09 01:00:10 +00:00
Alasdair Kergon
aab7a3978b Fix pvmove allocation to take existing parallel stripes into account. 
When moving parts of striped LVs, pvmove wouldn't care about leaving you with
two stripes on the same disk.  Now --alloc anywhere is needed for that.
(Tried and gave up on two alternative approaches before the one committed here.)
 2010-04-08 00:28:57 +00:00
Alasdair Kergon
d723636d52 Limit number of error messages when checking LV segments. 2010-04-01 12:14:20 +00:00
Milan Broz
6733116a19 Fix all segments memory is allocated from vg private mempool. 
Physical segments were still allocated from global
command context mempool.

This leads to very high memory usage when
activating large VG (vgchange).
(Memory usage was about 2G when >3000LVs).

Fix it by properly using vg->vgmem private pool,
so all the memory is released early.

New memory pool parameter is needed here for pv_split_segment
function.

Also fix the same problem in some minor allocations
(vg description, lv segment split).
 2010-03-31 17:23:18 +00:00
Mikulas Patocka
655849fb14 A missing space in the error message. 
Add missing parentheses to an error message

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
 2010-03-31 12:06:30 +00:00
Alasdair Kergon
2c44337bd5 Right, a simple build (without options) is working again. 2008-11-03 22:14:30 +00:00
Alasdair Kergon
4c0f4125ec Fix remove_layer_from_lv to empty the LV before removing it. (2.02.30) 2008-02-22 13:22:44 +00:00
Alasdair Kergon
67cdbd7e4d Some whitespace tidy-ups. 2008-01-30 14:00:02 +00:00
Alasdair Kergon
c51b9fff19 Use stack return macros throughout. 2008-01-30 13:19:47 +00:00
Alasdair Kergon
5dc6c0de80 Fix two check_lv_segments error messages to show whole segment. 2008-01-26 00:30:28 +00:00
Alasdair Kergon
72baf0c345 Maintain lists of stacked LV segments using each LV. 2008-01-16 19:00:59 +00:00
Alasdair Kergon
19c865437a Prevent lvconvert -s from using same LV as origin and snapshot. 2007-11-07 16:33:12 +00:00
Alasdair Kergon
be6845999b Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1. 2007-08-20 20:55:30 +00:00
Alasdair Kergon
3c21da1797 Cope with find_seg_by_le() failure in check_lv_segments(). 2007-07-10 18:50:03 +00:00
Alasdair Kergon
1817dbaf60 more mirror library functions 2005-10-28 12:48:50 +00:00
Alasdair Kergon
e6c20c6100 Fix new mirror_seg pointer. 2005-10-27 21:51:28 +00:00
Alasdair Kergon
5727a8fa85 Add mirror_seg pointer to lv_segment struct. (incomplete & untested) 2005-10-27 19:58:22 +00:00
Alasdair Kergon
0440a206dc Fix pvmove segment splitting. 
Abstract vg_validate.
 2005-07-12 19:40:59 +00:00
Alasdair Kergon
5e947dac48 Various allocation-related pvmove fixes. 2005-06-14 17:54:48 +00:00
Alasdair Kergon
60f13f01d2 Basic support for mirrors. 2005-06-01 16:51:55 +00:00
Alasdair Kergon
32469fb25c lv_reduce tidying. 
Remove some unnecessary parameters.
Introduce seg_is macros.
 2005-05-09 16:59:01 +00:00
Alasdair Kergon
15db9fcfbf Reinstate full PV size when removing from VG. 
Support loopfiles for testing.
Complete the pv_segment support.
 2005-05-03 17:28:23 +00:00
Alasdair Kergon
22c1a65f74 extend alloc_lv_segment 2005-04-22 15:44:00 +00:00
Alasdair Kergon
c4ddb31abf Rename old segtypes files to segtype. 2004-09-16 18:40:56 +00:00
Alasdair Kergon
392b28ec5c Support for PE ranges in pvmove source PV. 2004-08-17 22:09:02 +00:00
Alasdair Kergon
4922197a33 Begin to separate out segment types. 2004-05-04 21:25:57 +00:00
Alasdair Kergon
6606c3ae81 Update copyright notices. 2004-03-30 19:35:44 +00:00
Alasdair Kergon
cf6dd25126 tagging 2004-03-08 17:19:15 +00:00
Alasdair Kergon
85c1926171 Improve segment merge/split code. 2003-09-15 18:22:50 +00:00
Alasdair Kergon
f1e6be4be1 Additional validation of LV segments read from metadata. [HM] 2003-09-01 19:55:16 +00:00
Alasdair Kergon
8fd3c219fd Fix unsafe list iteration in segment merge code. [HM] 2003-08-27 15:30:39 +00:00
Alasdair Kergon
eb8ae8e837 Update segment area length when merging consecutive segments. 2003-04-24 22:46:47 +00:00
Alasdair Kergon
b8c919b402 o Metadata area struct change. 
o Support physical extent restrictions on PV lists for allocations
    e.g. lvcreate -l 200 vg1 /dev/sda1:100-199:300-399
 2003-04-24 22:23:24 +00:00
Alasdair Kergon
8ef2b021ed Default stripesize 64k & config file setting for it; 
Clear many compiler warnings (i386) & associated bugs - hopefully without
introducing too many new bugs:-)  (Same exercise required for other archs.)
Default compilation has optimisation - or else use ./configure --enable-debug
 2002-12-19 23:25:55 +00:00