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Commit Graph

55 Commits

Author SHA1 Message Date
Petr Rockai
d60c24dda8 Move the core of the lib/config/config.c functionality into libdevmapper,
leaving behind the LVM-specific parts of the code (convenience wrappers that
handle `struct device` and `struct cmd_context`, basically). A number of
functions have been renamed (in addition to getting a dm_ prefix) -- namely,
all of the config interface now has a dm_config_ prefix.
2011-08-30 14:55:15 +00:00
Zdenek Kabelac
7e6c6e0741 Code move of vg_mark_partial() up in stack
It's useful to keep the partial flag cached - so just move the call
for vg_mark_partil_lvs() into import_vg_from_config_tree() so it gets
evaluated before it goes through the lvmcache.

This patch should not present any functional change.

Note: It is rather temporal solution - proper place is probably inside the
'read' call back - but needs some more discussion.
For now using this minor hack.
2011-06-17 14:39:10 +00:00
Zdenek Kabelac
7cbf6fa3a6 Change import_vg_from_buffer to use config_tree
Change function import_vg_from_buffer() to import_vg_from_config_tree().
Instead of creating config tree inside the function allow config tree to
be passed as parameter - usable later for caching.
2011-01-10 13:13:42 +00:00
Zdenek Kabelac
c05aa13dcf Some const cleanups
Minor const warning fixes and internal API updates.
2010-12-20 13:19:13 +00:00
Zdenek Kabelac
5cd2cfc203 Use void parameter for function definition. 2010-08-03 13:06:35 +00:00
Milan Broz
0802006ea7 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
Alasdair Kergon
ca5fd21509 Suppress repeated errors about the same missing PV uuids.
Bypass full device scans when using internally-cached VG metadata.
2010-03-17 02:11:18 +00:00
Mike Snitzer
165d88cfd8 Switch status from 32-bit to 64-bit
The physical_volume, volume_group, logical_volume and lv_segment
structures' 'status' member is now uint64_t.

The alignment of these structures was also audited to remove holes.  The
movement of some members in 'volume_group' and 'lv_segment' eliminates
holes.  The 'physical_volume' structure still has one 4-byte hole after
'pe_size'; the other structures no longer have any holes.  Each
structures' size has not changed.
2009-11-24 22:55:55 +00:00
Alasdair Kergon
db559bb20a Cache VG metadata internally while VG lock is held. 2008-04-01 22:40:13 +00:00
Alasdair Kergon
22c957bc20 Refactor text format initialisation into _init_text_import. 2008-03-13 12:33:22 +00:00
Alasdair Kergon
1ddd4509dc Some whitespace tidy-ups. 2008-01-30 14:00:02 +00:00
Alasdair Kergon
6af3f4f4cf Use stack return macros throughout. 2008-01-30 13:19:47 +00:00
Alasdair Kergon
3f507a26fb Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1. 2007-08-20 20:55:30 +00:00
Alasdair Kergon
6531e88761 Protect .cache manipulations with fcntl locking.
Change .cache timestamp comparisons to use ctime.
2006-11-04 03:34:10 +00:00
Alasdair Kergon
ead252fee4 Add mirror_library description to example.conf.
More compile-time cleanup.
2006-05-11 17:58:58 +00:00
Alasdair Kergon
979ca34259 fix last commit 2006-05-10 17:51:02 +00:00
Alasdair Kergon
4dd1086805 more coverity fixes 2006-05-10 17:49:25 +00:00
Alasdair Kergon
3503d4b72c Fix uuid_from_num() buffer overrun. 2006-05-10 16:42:03 +00:00
Alasdair Kergon
70e45ad37b Check for libsepol.
Add some cflow & scope support.
Separate out DEFS from CFLAGS.
Remove inlines and use unique function names.
2006-04-19 15:33:07 +00:00
Alasdair Kergon
86e757a6ad When choosing between identically-named VGs, also consider creation_host. 2006-04-13 17:32:24 +00:00
Alasdair Kergon
5227dff0e1 When scanning, also record whether or not VG is exported. 2006-04-11 17:42:15 +00:00
Alasdair Kergon
0a02968303 Whenever vgname is captured, also capture vgid. 2006-04-11 13:55:59 +00:00
Alasdair Kergon
67eb7723d6 Use hash, bitset, malloc, pool from libdevmapper. 2005-10-16 23:03:59 +00:00
Alasdair Kergon
c3941941ce Support tagged config files. 2004-05-04 18:28:15 +00:00
Alasdair Kergon
66ed5f82c4 Update copyright notices. 2004-03-30 19:35:44 +00:00
Alasdair Kergon
8703ca623f rename config file vars & always use / as separator 2004-03-08 18:28:45 +00:00
Alasdair Kergon
8449314da2 Another sync point - numerous fixes & clean ups. 2003-07-04 22:34:56 +00:00
Alasdair Kergon
34dd8d0a91 Some new features. 2002-11-18 14:04:08 +00:00
Joe Thornber
0e43107c87 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
1ee3e7997e tidy 2002-07-11 14:09:26 +00:00
Joe Thornber
b75eceab41 o Add version number to text format. 2002-07-02 18:47:43 +00:00
Alasdair Kergon
46127e673d Some partial VG support with format_text. 2002-04-30 17:12:37 +00:00
Alasdair Kergon
63875e7591 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
950d9d6ee7 Missing seg->lv gives segfault when activating from text format. 2002-04-16 19:41:54 +00:00
Alasdair Kergon
fc8b7efc6f 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
de7f7b96db o Format1 wasn't recording the snapshot chunk size properly
o  Activation of snapshots now works - though the resulting device
   doesn't (pjc ?)

o  text format wasn't setting vg->cmd.
2002-02-26 16:48:52 +00:00
Heinz Mauelshagen
08442ab71e Avoid ambigous volume_group argument in vg_add_snapshot() 2002-02-21 18:31:48 +00:00
Alasdair Kergon
10d91d213f Generate LV uuid from lv_number when reading in LVs. 2002-02-21 15:26:44 +00:00
Joe Thornber
9d33366092 o Define _read_uint32 2002-02-14 14:52:21 +00:00
Joe Thornber
4849e8cd6d o snapshot support for the text format.
The logical_volumes, and snapshots sections of the text format are now
optional.
2002-02-13 13:29:16 +00:00
Alasdair Kergon
c4856caebb 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
286a79d94d o Added functions to display what's in the archive.
o  For now vgcfgrestore -l <vg> displays this list.

A bit hacky, but it'll get better.
2002-02-11 11:43:17 +00:00
Alasdair Kergon
366ec35612 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
e1c24bd5a2 Set pv->pe_size when reading in text-file backup.
Otherwise LVM1 decides the PV structure is corrupt.
But do we need to keep both pv->pe_size and vg->extent_size
in internal metadata or can we generate pvd->pe_size when writing out
a PV that belongs to a VG?
2002-01-25 20:21:13 +00:00
Joe Thornber
e210599fa6 o Similar changes for lv_list. 2002-01-21 16:49:32 +00:00
Joe Thornber
34458e0c57 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
Alasdair Kergon
c46d20fa92 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
Joe Thornber
1f9d567b23 o vgcfgrestore works ! (with the couple of examples I tried). 2002-01-15 17:37:23 +00:00
Joe Thornber
ecf5539ed2 o Put in the pv_hash which stores the pv section name -> pv struct mapping. 2002-01-11 11:09:12 +00:00
Alasdair Kergon
0092790c7d 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