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Commit Graph

104 Commits

Author SHA1 Message Date
Alasdair Kergon
a0a23eff4b Rename allocation policies; add --alloc to cmdline; LV inherits from VG. 2004-05-18 22:12:53 +00:00
Alasdair Kergon
1832f310ac Add --type to lvcreate/resize.
Add virtual segment types, zero and error.

A large sparse device can be constructed as a writeable snapshot of a large
zero device.
2004-05-11 16:01:58 +00:00
Alasdair Kergon
1d2ebf6281 Push lv_create & alloc policy up to tool level. 2004-05-05 18:49:21 +00:00
Alasdair Kergon
cb919290c2 Separate out polldaemon. 2004-05-05 17:56:20 +00:00
Alasdair Kergon
5668c1abad move find_pv_by_name to lib 2004-05-05 11:04:28 +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
2da02bbd16 move lock_lvs; add lock memlock code 2004-03-26 20:49:35 +00:00
Alasdair Kergon
cf6dd25126 tagging 2004-03-08 17:19:15 +00:00
Alasdair Kergon
6078f63801 Prevent PV allocation bit getting changed for format_text orphans. 2003-11-06 20:15:13 +00:00
Alasdair Kergon
fee16e1049 Cope better with LVM1 minor numbers & LV numbers. 2003-11-06 16:58:38 +00:00
Alasdair Kergon
85c1926171 Improve segment merge/split code. 2003-09-15 18:22:50 +00:00
Alasdair Kergon
914c97239f Another sync point - numerous fixes & clean ups. 2003-07-04 22:34:56 +00:00
Alasdair Kergon
44c319cf0d move fields 2003-05-06 12:06:02 +00:00
Alasdair Kergon
97d344e2cb basic pvmove support 2003-04-30 15:23:43 +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
27f364af95 Allow for specification of major number as well as minor. 2003-04-02 19:14:43 +00:00
Alasdair Kergon
26e7f2e0c4 Tidy various pre-processing incl. making libdl optional. 2003-03-24 18:08:53 +00:00
Alasdair Kergon
7e4867f743 LV name validation 2003-02-03 20:09:58 +00:00
Alasdair Kergon
a421f74371 vgreduce --removemissing to remove missing PVs & deps & make VG consistent 2003-01-17 21:04:26 +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
Alasdair Kergon
5a52dca9c2 Some new features. 2002-11-18 14:04:08 +00:00
Joe Thornber
7cc602c800 i) Add the VISIBLE flag to the text format. (Other changes are pending
for lib/activate.)
2002-07-11 15:28:49 +00:00
Joe Thornber
291906a208 i) Added a little macro to aid defining the status flags. 2002-07-11 14:36:45 +00:00
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
AJ Lewis
fccc39a3a7 o Added function find_snapshots to snapshot_manip.c that returns a list
of snapshots whose origin is the lv passed in.
 o Used this new function to make lvdisplay properly display all snapshots
   attached to a origin.
2002-05-08 16:57:46 +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
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
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
Joe Thornber
7b9e789f9c o Remove the vg argument from find_cow 2002-02-25 11:55:39 +00:00
Heinz Mauelshagen
257ec146b2 Avoid ambigous volume_group argument in vg_add_snapshot() 2002-02-21 18:31:48 +00:00
Joe Thornber
0e32e054df o add find_cow function. 2002-02-21 10:16:33 +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
Heinz Mauelshagen
f48d3bcbd0 First cut on "pvcreate -s" 2002-02-15 01:26:16 +00:00
Joe Thornber
0a9f8bcf97 o First pass at format1 snapshot support. 2002-02-13 11:43:29 +00:00
Joe Thornber
7d68b08028 o First changes to add snapshot support.
I'm taking a different route from LVM1 here in that snapshots are a
seperate entity from the logical volumes, I think of them as an
application of an LV (or two lvs rather).  As such there is a list of
snapshots held against the vg, and there is *not* a SNAPSHOT, or
SHAPSHOT_ORG flag in lv->status.
2002-02-12 16:31:31 +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
Joe Thornber
e74999af51 o Add cmd_line field to struct cmd_context
o  Text format now has a description and time field at the top level.

o  archiving and backup set the description appropriately. eg,

   for an archive:

     description = "Created *before* executing 'lvextend test_vg/lvol0 -l +1'."
     creation_time = 1013166332

   for a backup:

     description = "Created *after* executing 'lvextend test_vg/lvol0 -l +1'."
     creation_time = 1013166332

This is preparing the way for a simple vgcfgundo command.
2002-02-08 11:13:47 +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
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
Joe Thornber
4b2ec1929a o There were some alignment problems with pool-debug which I've resolved
by allocating the data block with an additional dbg_malloc.

o  Added an assertion to check that no one is requesting alternate
   alignment for memory allocated from pool.  I can't see us needing this
   for LVM2.
2002-01-28 09:16:09 +00:00
Joe Thornber
0cf2445bb7 o Add extra parameter to lv_manip fns 2002-01-24 17:15:49 +00:00
Joe Thornber
f868d63582 o Similar changes for lv_list. 2002-01-21 16:49:32 +00:00
Joe Thornber
cc282870dd o Changed
struct pv_list {
	struct list list;
	struct physical_volume pv;
   };

   to

   struct pv_list {
	struct list list;
	struct physical_volume *pv;
   };


o  New function in toollib 'create_pv_list', which creates a list of pv's
   from a given command line array of pv's.

o  Changed lvcreate/extend to use this (fixes lvextend [pv list] bug).
2002-01-21 16:05:23 +00:00
Joe Thornber
e586401ecb o Changed find_pv_in_vg, and find_lv_in_vg to return a struct pv_list * and
struct lv_list * respectively.
2002-01-21 14:28:12 +00:00
Alasdair Kergon
add7dc2d5a o pvcreate --uuid to specify the uuid (required before using vgcfgrestore
onto a new device).  uuid specified must not already exist on the system.
o More message tidying.
o When checking for label, only read PV metadata.
o Add ataraid.  [Needs moving into config/defaults files.]
2002-01-16 18:10:08 +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
b80f32dd0a Clarify terminology:
VG is resizeable  - PVs can be added or removed
  PV is allocatable - free extents on it may be allocated to LVs
2002-01-10 15:09:51 +00:00
Joe Thornber
9b5db6c270 o First pass at import.c. Still waiting for label code for the uuid->pv
mapping.
2002-01-10 11:18:08 +00:00
Joe Thornber
9f44467d44 o sync backup changes 2001-12-20 11:52:54 +00:00