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Commit Graph

188 Commits

Author SHA1 Message Date
Joe Thornber
097d49e73d i) There's now a seperate field in struct logical_volume that stores the
allocation policy.  This can currently take one of three values:

   typedef enum {
        ALLOC_NEXT_FREE,
        ALLOC_STRICT,
        ALLOC_CONTIGUOUS
   } alloc_policy_t;

    Notice that 'SIMPLE' has turned into the slightly more meaningful NEXT_FREE.

ii) Put code into display.[hc] for converting one of these enums to a
    text representation and back again.

ii) Updated the text format so this also has the alloc_policy field.
2002-07-11 14:21:49 +00:00
Alasdair Kergon
48ad31920d Add --ignorelockingfailure 2002-07-10 20:43:32 +00:00
Alasdair Kergon
25b733809a Merge with text format branch.
Lots of changes/very little testing so far => there'll be bugs!

Use 'vgcreate -M text' to create a volume group with its metadata stored
in text files.  Text format metadata changes should be reasonably atomic,
with a (basic) automatic recovery mechanism if the system crashes while a
change is in progress.

Add a metadata section to lvm.conf to specify multiple directories if
you want (recommended) to keep multiple copies of the metadata (eg on
different filesystems).

e.g. metadata {
        dirs = ["/etc/lvm/metadata1","/usr/local/lvm/metadata2"]
}

Plenty of refinements still in the pipeline.
2002-04-24 18:20:51 +00:00
Alasdair Kergon
d6a766f138 Missing VG lock when iterating through all LVs. 2002-04-15 16:27:39 +00:00
Alasdair Kergon
4bb3eccf2b New-style persistent minor support. 2002-03-26 13:41:37 +00:00
Alasdair Kergon
a76ba817a8 Tie all snapshot (de)activation requests to (de)activation of origin device. 2002-03-18 13:09:27 +00:00
Alasdair Kergon
41967a0276 lv_info replaces lv_active etc. 2002-03-11 19:02:28 +00:00
Alasdair Kergon
be326a2f1b o activate/reactivate merge
o unlocking macro
2002-03-11 15:08:39 +00:00
Alasdair Kergon
15c325f06a o Use new LCK_HOLD flag to indicate whether lock should be held on return
from lock_vol() - otherwise it now attempts to acquire the lock and then
  immediately releases it.
o Extend the id field in struct logical_volume to hold VG uuid + LV uuid
  for format1. This unique lvid can be used directly when calling lock_vol().
o Add the VG uuid to vgcache to make VG uuid lookups possible.  (Another
  step towards using them instead of VG names internally.)
2002-03-05 20:03:09 +00:00
Joe Thornber
9db196e6c5 o Break creating a snapshot down into:
i)   create cow
   ii)  activate cow
   iii) zero cow
   iv)  deactivate
   v)   add snapshot info
   vi)  reactivate
2002-03-04 13:46:37 +00:00
Alasdair Kergon
8c013da41f More use of LV locking. 2002-03-01 19:08:11 +00:00
Alasdair Kergon
f4cbeaf0ac o Lock mechanism for LV activation
o #defines for common lock flag combinations
o Try out hyphens instead of colons in device-mapper names - does this
  make messages containing filenames easier to read?
2002-02-27 12:26:41 +00:00
Alasdair Kergon
413cc9189e Begin conversion so LV id is passed to activation unit instead of
struct logical_volume.
2002-02-25 12:56:16 +00:00
Alasdair Kergon
187cf4c97d o Convert lv->id back to lv_number when writing back to disk
o Use first unused lv_number when creating new LV
o Use lv_number for refs to snapshots
o Update persistent minor logic after the lvcreate restructure
o Reset all parameters before use in lvcreate.
2002-02-21 19:04:37 +00:00
Alasdair Kergon
cc8b2cd706 Try out using LV locking for reactivation. 2002-02-20 21:30:27 +00:00
Alasdair Kergon
b6afcf6458 Remove VG arg from lv_is_cow() and lv_is_origin() - use lv->vg instead. 2002-02-20 19:04:55 +00:00
Joe Thornber
0a9f8bcf97 o First pass at format1 snapshot support. 2002-02-13 11:43:29 +00:00
Alasdair Kergon
6fda126dd7 Run through indent - no (intentional) changes to any code. 2002-02-11 21:00:35 +00:00
Alasdair Kergon
60274aba6e Preparation for an LVM2 liblvm - pass cmd_context into each tool and
link some globals that the tools need into that structure.
2002-02-11 20:50:53 +00:00
Alasdair Kergon
812c699c8d Basic support for persistent minor numbers;
slightly different from the current LVM1 method.

  lvcreate --persistent y  --minor 10   (to specify when created)
  lvchange --persistent n  (to turn off)
  lvchange --persistent y  --minor 11   (to change)

--persistent uses a new LV status flag stored on disk
minor number is stored on disk the same way as LVM1 does
(but major number stored is 0; any LVM1 major/minor setting gets lost)

  lvchange -ay --minor 12 (to activate using minor 12, regardless of the
                           on-disk setting, which doesn't get changed)

--minor == -m
--persistent == -M
2002-02-01 17:54:39 +00:00
Alasdair Kergon
12a6fcd3a8 Propagate volume group read-only setting down to its logical volumes.
(Might sometimes be safe to relax this restriction.)
2002-01-30 17:12:14 +00:00
Heinz Mauelshagen
08907484f5 quotes around names in output 2002-01-30 15:04:48 +00:00
Alasdair Kergon
f53c6aa66e o Basic support for exporting (but importing not completed yet).
o When volume group does not have write flag set, prevent changes to it.
o Preparation for partial activation (not completed yet).
2002-01-29 17:23:33 +00:00
Alasdair Kergon
4af6dc9663 Allow compilation against a device-mapper that was installed into $DESTDIR
Always check for negative (error) return code from lv_active()
2002-01-18 16:43:19 +00:00
Alasdair Kergon
4a624ca055 o ACTIVE is no longer a status flag - lv_active() used to check if an LV
is active in the device-mapper.
o Many operations can be carried out regardless of whether the VG is
  active or not.
o vgscan does not activate anything - use vgchange.
o Change lvrename to support renaming of active LVs.
o Remove '//' appearing in some pathnames.
o Dummy lv_check_segments() for compilation.
2002-01-10 23:21:07 +00:00
Alasdair Kergon
614a4508e6 Add archiving. 2002-01-09 13:17:14 +00:00
Alasdair Kergon
12e8972ba1 If a device somehow became suspended, lvchange -ay now reactivates it. 2002-01-07 22:36:12 +00:00
Joe Thornber
197c3f2ab4 o sync tool changes for backup stuff. 2002-01-07 11:12:11 +00:00
Alasdair Kergon
cc21948339 o Add autobackup support to tools (follows most vg_write calls).
o Skip autobackup when in test mode.
o Set test mode from config file.
o Create system/backup dirs if not present (unless LVM_SYSTEM_DIR holds "").
2001-12-31 21:27:39 +00:00
Alasdair Kergon
529d473095 o Allow more default values to be overridden from config file.
o Cope with both the readline versions used around here.
2001-12-31 15:20:18 +00:00
Joe Thornber
9f44467d44 o sync backup changes 2001-12-20 11:52:54 +00:00
Alasdair Kergon
3080a75445 o activation & active status tests
o lvdisplay fields from kernel
o update lv->size on resize
2001-11-21 19:32:35 +00:00
Alasdair Kergon
7f3859bb5c vgdisplay 2001-11-19 15:20:50 +00:00
Alasdair Kergon
9b7742bb36 More LV-related tidying. lvdisplay without args now shows all LVs. 2001-11-14 18:38:07 +00:00
Alasdair Kergon
277237805a iospace restructured 2001-11-12 15:10:01 +00:00
Alasdair Kergon
0a5e4a1442 o Changes to activation interface
o Add pointer lv->vg
o Some naming tweaks to improve clarity
2001-10-31 17:59:52 +00:00
Joe Thornber
1b9fcf48b1 o LGPL list implementation 2001-10-31 12:47:01 +00:00
Alasdair Kergon
0fc8bab82a lvchange 2001-10-30 14:32:48 +00:00