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241 Commits

Author SHA1 Message Date
Milan Broz
8e1d5615b4 Introduce memory pool per volume group. 
Since now, all code reading volume group is responsible for releasing
the memory allocated by calling vg_release(vg).
(For simplicity of use, vg_releae can be called for vg == NULL,
the same logic like free(NULL)).

Also providing simple macro for unlocking & releasing in one step,
tools usualy uses this approach.

The global memory pool (cmd->mem) should be used only for global
physical volume operations.

This patch have to be applied with all subsequent patches to complete
memory pool per vg logic.

Using separate memory pool has quite bit memory saving impact when
using large VGs, this is mainly needed when we have to use
preallocated and locked memory (and should not overflow from that
memory space).
 2009-04-10 09:59:18 +00:00
Milan Broz
7b1c853bd9 Try to avoid full rescan if label scan is enough. 2009-02-25 23:29:06 +00:00
Alasdair Kergon
8929ce6651 Add --dataalignment to pvcreate to specify alignment of data area. (mbroz) 
This patch is not fully tested and leaves some related bugs unfixed.

Intended behaviour of the code now:

  pe_start in the lvm2 format PV label header is set only by pvcreate (or
vgconvert -M2) and then preserved in *all* operations thereafter.

  In some specialist cases, after the PV is added to a VG, the pe_start
field in the VG metadata may hold a different value and if so, it
overrides the other one for as long as the PV is in such a VG.

  Currently, the field storing the size of the data area in the PV label
header always holds 0.  As it only has meaning in the context of a
volume group, it is calculated whenever the PV is added to a VG (and can
be derived from extent_size and pe_count in the VG metadata).
 2009-02-22 19:00:26 +00:00
Alasdair Kergon
8544a8a254 Rename vg_read() to vg_read_internal(). (mornfall) 2009-01-26 19:01:32 +00:00
Dave Wysochanski
e9f57f2beb Add pv_mda_size to 'pvs' and vg_mda_size to 'vgs'. 
Reports the size of the smallest metadata area in a PV or a VG.
Useful to confirm pvcreate --metadatasize or pvmetadatasize setting in
/etc/lvm/lvm.conf file.

NOTE: Actual value in these fields will most always differ from that
given in pvcreate options due to rounding and alignment effects.
 2009-01-09 22:44:33 +00:00
Milan Broz
6d1b3b5385 Calculate mirror log size instead of hardcoding 1 extent size. 
It fails for 1k PE now.

Patch adds log_region_size into allocation habdle struct
and use it in _alloc_parallel_area() for proper log size calculation
instead of hardcoded 1 extent - which can fail.

Reproducer for incorrect log size calculation:
        DEV=/dev/sd[bcd]

        pvcreate $DEV
        vgcreate -s 1k vg_test $DEV
        lvcreate -m1 -L 12M -n mirr vg_test

https://bugzilla.redhat.com/show_bug.cgi?id=477040

The log size calculation is mostly copied from kernel code.
 2008-12-19 15:24:52 +00:00
Peter Rajnoha
b47952641a Added displayable_lvs_in_vg and lv_is_displayable functions to deal with 
the counts of visible LVs from user's perspective consistently throughout
the code.
 2008-12-04 15:54:26 +00:00
Alasdair Kergon
2c44337bd5 Right, a simple build (without options) is working again. 2008-11-03 22:14:30 +00:00
Milan Broz
affecdc5fc Try to fix possible infinite loop in dependency tree walking (by mornfall). 2008-09-25 15:57:02 +00:00
Alasdair Kergon
8c5bcdabab Improve the way VGs with PVs missing are handled so manual intervention 
is required in fewer circumstances.  (mornfall)
 2008-09-19 06:42:00 +00:00
Alasdair Kergon
a77f5bf258 Pass struct physical_volume to pe_align. 2008-09-19 04:28:58 +00:00
Alasdair Kergon
6e210a6c54 Cache VG metadata internally while VG lock is held. 2008-04-01 22:40:13 +00:00
Dave Wysochanski
9332d2cb9d Add find_lv_in_lv_list() and find_pv_in_pv_list(). 
Update _add_pvs() to call find_pv_in_pv_list().
 2008-03-28 19:08:23 +00:00
Alasdair Kergon
7284f3f966 preparation for vg cache 2008-03-17 16:51:31 +00:00
Alasdair Kergon
72baf0c345 Maintain lists of stacked LV segments using each LV. 2008-01-16 19:00:59 +00:00
Alasdair Kergon
31e9db2690 stacked mirror support (incomplete) 2007-12-20 18:55:46 +00:00
Alasdair Kergon
a69ab65278 Major restructuring of pvmove and lvconvert layer manipulation code 2007-12-20 15:42:55 +00:00
Alasdair Kergon
00a7c302ea Add pv_mda_free and vg_mda_free fields to reports for raw text format. 2007-11-05 17:17:55 +00:00
Bryn M. Reeves
8b98c12815 Add is_orphan_vg() and change all hardcoded checks to use it. 2007-11-02 13:06:42 +00:00
Dave Wysochanski
70d9f98ed3 Accessor functions for PV will not modify the given PV. 
So we can add 'const' to it.
Patch by Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
 2007-10-12 14:08:10 +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
03eee0e2ed Split metadata-external.h out from metadata.h for the tools to use. 2007-07-18 15:38:58 +00:00
Dave Wysochanski
33e5601937 Change pv_read_path to pv_by_path 2007-07-12 15:38:53 +00:00
Dave Wysochanski
0c795e2e18 Turn _add_pv_to_vg() into external library function add_pv_to_vg() 2007-07-12 05:04:42 +00:00
Dave Wysochanski
c254039677 Add pv_read_path, a proposed external LVM library function to take a device path and return a PV handle 2007-07-11 23:33:12 +00:00
Dave Wysochanski
d6b1de30fe Convert vg->status checks to use vg_check_status function.\nRename status_flags to status in vg_check_status. 2007-06-19 04:36:12 +00:00
Dave Wysochanski
69483a8aaf Add vg_status function and clean up vg->status in tools directory 2007-06-19 04:23:32 +00:00
Dave Wysochanski
1f54709ee6 Make vg_extend() format_instance * parameter internal to vg_extend() 2007-06-19 00:33:43 +00:00
Dave Wysochanski
ff77bb1ab6 Remove get_ prefix from get_pv_* functions 2007-06-15 22:16:55 +00:00
Dave Wysochanski
3df2c388b1 convert pv->vg_name[0] to \!is_orphan(pv) 2007-06-14 15:48:05 +00:00
Dave Wysochanski
dd04871295 Convert pv_handle_t to pv_t * and tidy up whitespace 2007-06-13 20:55:56 +00:00
Dave Wysochanski
f1f4c1ea50 Add typedef pv_handle_t 2007-06-13 19:52:48 +00:00
Dave Wysochanski
b496210d9a Convert find_pv_in_vg_by_uuid and pv_create to use PV handles 2007-06-12 22:41:27 +00:00
Dave Wysochanski
0e2f6120ee Add get_pv_* functions to return PV fields in prep for external LVM library 2007-06-12 21:20:20 +00:00
Dave Wysochanski
c221b0bc21 Add vg_check_status to consolidate vg status flags checks and error messages. 2007-06-06 19:40:28 +00:00
Dave Wysochanski
28d1c4d7e2 Update pvck to include text metadata area and record detection. 
--
 2007-04-25 21:10:55 +00:00
Dave Wysochanski
d915579c6b Update pvck to read labels on disk, with flexible --labelsector 
parameter.

--
 2007-04-25 20:03:16 +00:00
Milan Broz
851002b87d Fix vgsplit for lvm1 format (set and validate VG name in PVs metadata). 
Split metadata areas in vgsplit properly.
 2007-03-23 12:43:17 +00:00
Alasdair Kergon
37fb985a82 If a PV reappears after it was removed from its VG, make it an orphan. 2007-02-07 13:29:52 +00:00
Alasdair Kergon
5b61ca7281 When lvconvert allocates a mirror log, respect parallel area constraints. 
Use loop to iterate through the now-ordered policy list in _allocate().
Check for failure to allocate just the mirror log.
Introduce calc_area_multiple().
Support mirror log allocation when there is only one PV: area_count now 0.

(See lvm-devel list archives for further details.)
 2006-12-13 03:39:58 +00:00
Alasdair Kergon
4d2a8d8231 fix last check-in: lv->size is in sectors 2006-11-03 21:07:15 +00:00
Alasdair Kergon
de5c82a0d9 add cling allocation policy 2006-10-08 12:01:13 +00:00
Alasdair Kergon
bbb068562e Extend _check_contiguous() to detect single-area LVs. 
Include mirror log (untested) in _for_each_pv() processing.
Use MIRROR_LOG_SIZE constant.
Remove struct seg_pvs from _for_each_pv() for generalisation.
Avoid adding duplicates to list of parallel PVs to avoid.
 2006-09-11 21:14:56 +00:00
Alasdair Kergon
b5d761e1d2 wrap PE_ALIGN 2006-08-17 19:30:59 +00:00
Alasdair Kergon
916490f8bf Add lvm_getpagesize wrapper. 2006-08-17 18:23:44 +00:00
Alasdair Kergon
de82843391 Add --nosync to lvcreate with LV flag NOTSYNCED. 2006-05-11 20:03:40 +00:00
Alasdair Kergon
532dae4854 Allow vgreduce to handle mirror log failures. 2006-05-11 19:01:11 +00:00
Alasdair Kergon
72b2cb613a Make SIZE_SHORT the default for display_size(). 
Fix some memory leaks in error paths found by coverity.
Use C99 struct initialisers.
Move DEFS into configure.h.
Clean-ups to remove miscellaneous compiler warnings.
 2006-05-09 21:23:51 +00:00
Alasdair Kergon
98513c2729 fix stripesize const 2006-05-02 07:14:43 +00:00
Alasdair Kergon
12de747d3a Improve stripe size validation. 
Increase maximum stripe size limit to physical extent size for lvm2 metadata.
 2006-04-29 22:08:43 +00:00
Alasdair Kergon
8a2fc58645 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
a5fe5a7cdd Fix vgexport/vgimport to set/reset PV exported flag so pv_attr is correct. 
Add vgid to struct physical_volume and pass with vg_name to some functions.
 2006-04-12 21:23:04 +00:00
Alasdair Kergon
ace652e673 lv_is_visible() 2006-04-07 17:41:56 +00:00
Alasdair Kergon
2cd0aa727a Introduce origin_from_cow() 2006-04-06 13:39:16 +00:00
Alasdair Kergon
e2619d9ec1 more lvconvert mirror code 2005-11-29 18:20:23 +00:00
Alasdair Kergon
7a5933259f Clear up precommitted metadata better on disk after use. 
[Some activation-related features will stop working for a while now.
Some types of activation are getting split into two steps, with the
first step using the precommitted metadata.]
 2005-10-31 20:15:28 +00:00
Alasdair Kergon
faf07d358f revert unfinished change 2005-10-31 15:46:29 +00:00
Alasdair Kergon
3bf5f6f575 A pvresize implementation (Zak Kipling). 2005-10-31 02:37:29 +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
78aa12e1dc Fix automatic text metadata buffer expansion (using macro). [stdarg usage bug] 
Cache formatted text metadata buffer between metadata area writes.
  [improves write performance when lots of metadata area clones]
 2005-10-23 00:14:48 +00:00
Alasdair Kergon
06820362bd Split lv_segment_area from lv_segment to permit extension. 2005-10-18 13:43:40 +00:00
Alasdair Kergon
07d318310b Prepare tools to support clustered mirrors. 2005-08-14 23:18:28 +00:00
Alasdair Kergon
bfd31e94d5 Factor out adjusted_mirror_region_size() 2005-08-12 19:23:08 +00:00
Alasdair Kergon
0440a206dc Fix pvmove segment splitting. 
Abstract vg_validate.
 2005-07-12 19:40:59 +00:00
Alasdair Kergon
b6d69d0c1e missing fn defs 2005-06-14 18:22:31 +00:00
Alasdair Kergon
5e947dac48 Various allocation-related pvmove fixes. 2005-06-14 17:54:48 +00:00
Alasdair Kergon
8b80d2a57c Make VG name restrictions consistent. 2005-06-06 18:16:33 +00:00
Alasdair Kergon
8211a13ce0 Always insert an intermediate layer for mirrors. 
Suppress hidden LVs from reports unless --all is given.
Use square brackets for hidden LVs in reports.
Centralise restrictions on LV names.
 2005-06-03 14:49:51 +00:00
Alasdair Kergon
60f13f01d2 Basic support for mirrors. 2005-06-01 16:51:55 +00:00
Alasdair Kergon
7f2def9e6d Remove lists of free PV segments. 
Simplify pv_maps code and remove slow bitset algorithm.
 2005-05-11 15:02:49 +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
41d7e56a02 initial pv_segment defns 2005-04-19 20:52:35 +00:00
Alasdair Kergon
66278a80b1 vgchange --physicalextentsize (but only if it's an exact fit - may need to 
use pvmove first)
 2005-04-18 14:56:42 +00:00
Alasdair Kergon
ef9188078d get_pv_from_vg_by_id 2005-04-17 23:57:44 +00:00
Alasdair Kergon
072893aabd Internal snapshot code restructuring. 2005-04-07 12:39:44 +00:00
Alasdair Kergon
3a6edbed16 add lvid to lv_create_empty 2005-04-07 12:29:46 +00:00
Alasdair Kergon
69b2cc0ee0 Remove unused internal non-persistent snapshot option. 2005-04-07 12:27:57 +00:00
Alasdair Kergon
90395b8d53 store snapshot id as lvid internally 2005-04-07 12:24:48 +00:00
Alasdair Kergon
367b9cb1f5 Move from 2-step to 3-step on-disk metadata commit. 2005-04-06 18:59:55 +00:00
Alasdair Kergon
c45a8a2c1c Store snapshot and origin sizes separately. 2005-01-19 17:19:39 +00:00
Alasdair Kergon
68eb9e3b1f Test for incompatible format/segtype combinations in lv_extend. 2004-09-14 13:56:18 +00:00
Alasdair Kergon
392b28ec5c Support for PE ranges in pvmove source PV. 2004-08-17 22:09:02 +00:00
Alasdair Kergon
eabaa3398b Change alloc_areas to pe_ranges and allow suppression of availability checks. 2004-08-17 21:55:23 +00:00
Alasdair Kergon
c29d24650d Display all filtered devices, not just PVs, with pvs -a. 2004-06-19 19:27:00 +00:00
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