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Commit Graph

484 Commits

Author SHA1 Message Date
Zdenek Kabelac
d40d166f91 Switch void* to char* arithmetic 2010-12-20 13:37:26 +00:00
Zdenek Kabelac
760d1fac55 Add more strict const pointers around config tree
To have better control were the config tree could be modified use more
const pointers and very carefully downcast them back to non-const
(for config tree merge).
2010-12-20 13:12:55 +00:00
Alasdair Kergon
2b82bd79f5 Rename vg_release to free_vg. 2010-12-08 20:50:48 +00:00
Petr Rockai
8191fe4f4a Refactor the percent (mirror sync, snapshot usage) handling code to use
fixed-point values instead of a combination of a float value and an enum.
2010-11-30 11:53:31 +00:00
Alasdair Kergon
eb82bd0525 Extend cling allocation policy to recognise PV tags (cling_by_tags).
Add allocation/cling_tag_list to lvm.conf.
2010-11-09 12:34:40 +00:00
Peter Rajnoha
f7e3a19f75 Clarify error messages when activation fails due to activation filter use. 2010-11-05 18:18:11 +00:00
Zdenek Kabelac
2955b913ea Use new status code from fsadm check
Patch updates exec_cmd() and adds 3rd parameter with pointer for
status value, so caller might examine returned status code.
If the passed pointer is NULL, behavior is unmodified.

Patch allows to confinue with lvresize if the failure from fsadm check is
caused by mounted filesystem as many of filesystem resize tools do support
online filesystem resize. (originally user had to use flag '-n' to bypass
this filesystem check)
2010-11-01 14:17:35 +00:00
Alasdair Kergon
2d6fcbf67d Allow internal suspend and resume of origin without its snapshots. 2010-08-17 16:25:32 +00:00
Alasdair Kergon
f92b4f9482 Monitor origin -real device below snapshot instead of overlay device. (brassow) 2010-08-17 01:16:41 +00:00
Alasdair Kergon
85a80e0505 Don't really change monitoring status when in test mode. 2010-08-16 23:29:09 +00:00
Alasdair Kergon
d1e8046f56 Various small cleanups and fixes related to monitoring. 2010-08-16 22:54:35 +00:00
Peter Rajnoha
3122f963b0 Addendum for previous patch - show VG/LV name everywhere so the messages
are consistent.
2010-07-12 12:38:35 +00:00
Peter Rajnoha
fefa43235f Add more verbose messages while checking volume_list and hosttags settings.
This should bring less confusion when there are some settings left and
people just forgot about it and then they run into problems. These messages
should give them a hint of what's really going on.
2010-07-12 11:37:49 +00:00
Zdenek Kabelac
4ec2ae8632 Do not log backtrace in valid _lv_resume() code path 2010-07-08 12:24:04 +00:00
Petr Rockai
d345bf2cd3 Account for mirror transient status when doing lvconvert --repair. 2010-05-24 15:32:20 +00:00
Zdenek Kabelac
9249fb12b8 Replicator: activate checks for missing vgs
Activation needs to have all remote VGs locked to pass for replicator.
So if activated LV is replicator-dev LV - read all remote VGs.
2010-05-21 14:34:01 +00:00
Jonathan Earl Brassow
7a369d3704 Add ability to create mirrored logs for mirror LVs.
This check-in enables the 'mirrored' log type.  It can be specified
by using the '--mirrorlog' option as follows:
#> lvcreate -m1 --mirrorlog mirrored -L 5G -n lv vg

I've also included a couple updates to the testsuite.  These updates
include tests for the new log type, and some fixes to some of the
*lvconvert* tests.
2010-03-26 22:15:43 +00:00
Zdenek Kabelac
18b82048e4 mlockall() -> mlock()
This patch adds a new implementation of locking function instead
of mlockall() that may lock way too much memory (>100MB).
New function instead uses mlock() system call and selectively locks
memory areas from /proc/self/maps trying to avoid locking areas
unused during lock-ed state.

Patch also adds struct cmd_context to all memlock() calls to have
access to configuration.

For backward compatibility functionality of mlockall()
is preserved with "activation/use_mlockall" flag.

As a simple check, locking and unlocking counts the amount of memory
and compares whether values are matching.
2010-03-05 14:48:33 +00:00
Milan Broz
65752052e1 Remove lvs_in_vg_activated_by_uuid_only call.
There is no difference from lvs_in_vg_activated now,
convert all users to this call.
2010-02-24 20:01:40 +00:00
Milan Broz
ab9663f394 Always query device by uuid only.
lvm2 devices have always UUID set even if imported from lvm1 metadata.

Patch removes name argument from dev_manager_info call and converts
all activation related calls to use query by UUID.

Also it simplifies mknode call (which is the only user on mknodes parameter).
2010-02-24 20:00:56 +00:00
Milan Broz
4b373907f6 Always query device by using uuid only and not name in clvmd.
Otherwise confusion with the device of the same name
(but different UUID, e.g. non-lvm device) can happen.
2010-01-27 13:23:57 +00:00
Mike Snitzer
c79b425135 Add snapshot merge wrappers to abstract the associations and flags used
to represent merging origin and snapshot volumes.
2010-01-13 01:55:43 +00:00
Mike Snitzer
c21b944a35 Conditionally push down either the "snapshot-origin" or
"snapshot-merge" target based on whether the LV is a merging snapshot.

When activating a snapshot-merge target do not attempt to monitor the
LV for events; the polldaemon will monitor the snapshot as it is
merged.

Allow "snapshot-merge" target's usage to be parsed via standard
"snapshot" methods.

NOTE: follow on fixes to the _percent_run change are still needed
2010-01-13 01:43:32 +00:00
Mike Snitzer
56b3d20462 Add missing 'stack;' for all activate_lv and deactivate_lv callers.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2010-01-05 21:08:34 +00:00
Milan Broz
63ae0d1464 Fix memory lock imbalance in lv_suspend if already suspended.
pvmove suspends all moved LVs + pvmoveX mirrored LV itself.

This suspends even underlying pvmoveX and following explicit
suspend call is just noop.

But in resume the pvmoveX volume is no longer underlying
device for moved LVs, so it performs full resume with memlock
decrease.

Code must call memlock_inc() if suspend is requested, volume
is already suspended and error is not requested.
2009-12-03 19:23:40 +00:00
Milan Broz
0548bcc2dc Fix memory leak in lv_info_by_lvid
The lv_from_lvid calls internally vg_read(),
we must release vg structure afterwards.

Code is called only from clvmd.
2009-12-01 19:10:23 +00:00
Alasdair Kergon
75b37a1147 Insert some missing stack macros into activation code. 2009-10-30 13:07:49 +00:00
Petr Rockai
b4048242f5 Handle metadata with unknown segment types more gracefully. 2009-10-16 17:41:49 +00:00
Alasdair Kergon
78ad1549a5 Introduce percent_range_t and centralise snapshot full/mirror in-sync checks. 2009-10-01 00:35:29 +00:00
Alasdair Kergon
64a950108c Don't attempt to deactivate an LV if any of its snapshots are in use. 2009-09-29 18:50:28 +00:00
Milan Broz
89a6cdfd4c Return fail if lv_deactivate did not removed device from kernel.
lv_deactivate now returns always success, because tree deactivation
functions (see dm_tree_deactivate_children) always returns success.

Because code should return failure in lv_deactivate at least,
fix it by checking for device existence after real deactivation call.

(After discussion this was prefered solution to dm tree function rewrite
which affects snapshots and mirrors.)
2009-09-29 15:17:54 +00:00
Milan Broz
c1fdeec999 Fix readahead calculation problems.
During vgreduce is failed mirror image replaced with error segment,
this segmant type has always area_count == 0.
Current code expects that there is at least one area with device,
patch fixes it by additional check (fixes segfault during vgreduce).

Also do not calculate readahead in every lv_info call, we only need
to cache PV readahead before activation calls which locks memory.
2009-06-01 12:43:31 +00:00
Alasdair Kergon
25a2e7b80e Pre-release cleanups. 2009-05-21 03:04:52 +00:00
Milan Broz
6ac30c94f2 Fix locking query compatibility with old external locking libraries. 2009-05-20 12:58:03 +00:00
Milan Broz
d396100278 Use readahead of underlying device and not default (smaller) one.
When we are stacking LV over device, which has for some reason
increased read_ahead (e.g. MD RAID), the read_ahead hint
for libdevmapper is wrong (it is zero).

If the calculated read_ahead hint is zero, patch uses read_ahead of underlying device
(if first segment is PV) when setting DM_READ_AHEAD_MINIMUM_FLAG.

Because we are using dev-cache, it also store this value to cache for future use
(if several LVs are over one PV, BLKRAGET is called only once for underlying device.)

This should fix all the reamining problems with readahead mismatch reported
for DM over MD configurations (and similar cases).
2009-05-20 11:09:49 +00:00
Milan Broz
eb91c4eee3 Use suspend with flush when device size was changed during table preload.
This allows online mirror resize, also removes condition to preventing
code to do this.
2009-05-20 09:52:37 +00:00
Milan Broz
fa6dca9f28 Add infrastructure for queriying for remote locks.
Current code, when need to ensure that volume is not
active on remote node, it need to try to exclusive
activate volume.

Patch adds simple clvmd command which queries all nodes
for lock for given resource.

The lock type is returned in reply in text.

(But code currently uses CR and EX modes only.)
2009-05-19 10:38:58 +00:00
Milan Broz
afd9ba98c1 Merge lv_is_displayable and lv_is_visible.
Displayable and visible is the same thing.

volumes_count(vg) is now vg_visible_lvs() and always
returns number of LVs from user perspective.
2009-05-13 21:27:43 +00:00
Milan Broz
59d8429cb3 Introduce lv_set_visible & lv_set_invisible and use lv_is_visible always.
The vg->lv_count parameter now includes always number of visible
logical volumes.

Note that virtual snapshot volume (snapshotX) is never visible,
but it is stored in metadata with visible flag.
2009-05-13 21:26:45 +00:00
Milan Broz
095bbca691 Properly release VG memory pool in activation code and clvmd. 2009-04-10 10:00:04 +00:00
Alasdair Kergon
ed82bfd2ba Attempt cleanup in child before execing new binary in exec_cmd() 2009-02-28 00:54:06 +00:00
Zdenek Kabelac
c8669f6b13 Fixed bug where lvresize option -t was not properly passed to fsadm.
Using argv[] list in exec_cmd() to allow more params for external commands.
Fsadm does not allow checking mounted filesystem.
Fsadm no longer accepts 'any other key' as 'no' answer to y/n.
Fsadm improved handling of command line options.
2009-02-24 15:48:00 +00:00
Peter Rajnoha
3ad47d16ab Fix vgrename using UUID in case there are VGs with the same name. 2008-12-19 14:22:48 +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
Alasdair Kergon
cda354087f rename var 2008-09-19 07:12:45 +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
424dd43e6f Revert assuming precommitted metadata is live when activating (unnecessary). 2008-06-08 11:33:15 +00:00
Alasdair Kergon
e4b34bfad0 When activating, if precommitted metadata is still cached, assume it's live. 2008-06-05 13:06:39 +00:00
Dave Wysochanski
5ca6698f12 Add lv_is_active() to determine whether an lv is active.
Handles non-clustered as well as clustered.  For clustered,
the best we can do is try exclusive local activation.  If this
succeeds, we know it is not active elsewhere in the cluster.
Otherwise, we assume it is active elsewhere.
2008-04-10 21:34:18 +00:00
Milan Broz
5619c629f6 Add detection of clustered mirror log capability.
Currently only check for kernel module presence.
2008-04-07 10:23:47 +00:00
Alasdair Kergon
4e9083db10 Fix mirror log name construction during lvconvert. (2.02.30)
Make monitor_dev_for_events recurse through the stack of LVs.
Clean up some more compiler warnings.
Add mirror names test script.
2008-01-31 12:19:36 +00:00
Alasdair Kergon
67cdbd7e4d Some whitespace tidy-ups. 2008-01-30 14:00:02 +00:00
Alasdair Kergon
0c06de632a pre-release review cleanups 2008-01-17 17:17:09 +00:00
Alasdair Kergon
876003dc44 allow a mirror to contain only one mimage 2008-01-16 19:18:51 +00:00
Petr Rockai
67961c7c10 Add snapshot dmeventd library (enables dmeventd snapshot monitoring). 2008-01-09 15:32:19 +00:00
Alasdair Kergon
a6b22cf317 readahead activation code (but no dm support yet) 2007-11-12 20:51:54 +00:00
Alasdair Kergon
be6845999b Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1. 2007-08-20 20:55:30 +00:00
Jim Meyering
08c9ff434b Add "const" attributes where possible: first cut. 2007-08-07 09:06:05 +00:00
Jonathan Earl Brassow
5efd97f108 lib/activate/activate.c:_lv_activate tries to monitor a device
regardless of whether it was successfully activated.  Now fixed
to only monitor if it was successfully activated.
2007-08-01 20:29:07 +00:00
Dave Wysochanski
13835b5f6c Don't use index and rindex functions marked by SUSv3 as legacy - Jakub Bogusz <qboosh@pld-linux.org> 2007-07-02 11:17:21 +00:00
Petr Rockai
e7ddf4168d Make warnings go to stderr. Change log_warn to that effect, log_print
continues to send messages to stdout.
2007-06-28 17:33:44 +00:00
Alasdair Kergon
1bf5aae913 Change some #include lines to search only standard system directories. 2007-04-27 17:46:16 +00:00
Alasdair Kergon
b45c9f49d0 Fix vgrename active LV check to ignore differing vgids. 2007-03-08 21:08:25 +00:00
Alasdair Kergon
20db8ffcae lvm.static no longer interacts with dmeventd unless explicitly asked to. 2007-01-24 23:43:27 +00:00
Alasdair Kergon
24f4552bbe fix earlier checkin 2007-01-24 22:06:11 +00:00
Alasdair Kergon
57fc4cc0b6 Add field definitions to report help text.
Remove unnecessary cmd arg from target_*monitor_events().
2007-01-24 16:51:24 +00:00
Alasdair Kergon
8a37910d51 register->monitor etc. 2007-01-19 22:21:45 +00:00
Alasdair Kergon
8ef6eb30d9 Report dmeventd mirror monitoring status. 2007-01-12 20:38:30 +00:00
Alasdair Kergon
0ce83a83f0 Fix some activate.c prototypes when compiled without devmapper. 2006-12-20 16:19:01 +00:00
Alasdair Kergon
6c81ed26f0 Add LV column to reports listing kernel modules needed for activation. 2006-10-03 17:55:20 +00:00
Alasdair Kergon
0550c1b618 Move lvm_snprintf into libdevmapper. 2006-08-21 12:54:53 +00:00
Alasdair Kergon
9cd3426d3a Fix missing lockfs on first snapshot creation. 2006-08-08 21:20:00 +00:00
Alasdair Kergon
4aae724656 Fix target_register_events args. 2006-05-25 13:32:26 +00:00
Alasdair Kergon
2293567c8c Fix lvcreate corelog validation.
Add --config for overriding most config file settings from cmdline.
  Quote arguments when printing command line.
  Remove linefeed from 'initialising logging' message.
  Add 'Completed' debug message.
  Don't attempt library exit after reloading config files.
  Always compile with libdevmapper, even if device-mapper is disabled.
2006-05-16 16:48:31 +00:00
Alasdair Kergon
3e3d5d8593 Add --monitor to vgcreate and lvcreate to control dmeventd registration.
Propagate --monitor around cluster.
Filter LCK_NONBLOCK in clvmd lock_vg.
2006-05-12 19:16:48 +00:00
Alasdair Kergon
898e6f8e41 Add mirror_library description to example.conf.
More compile-time cleanup.
2006-05-11 17:58:58 +00:00
Alasdair Kergon
e24e713001 _register_dev_for_events to return error on failure 2006-04-28 14:06:06 +00:00
Alasdair Kergon
472ac5bdd5 more snapshot code tidying 2006-04-06 14:06:27 +00:00
Alasdair Kergon
e408d62eaf suspend using existing LV metadata; vgreduce then needs partial flag 2006-02-03 19:36:20 +00:00
Alasdair Kergon
8b888354c8 When suspending, dmeventd deregistration needs to use existing details
not precommitted ones.
2006-01-27 20:39:37 +00:00
Alasdair Kergon
ed09d7e394 Rename register_dev; fix missing initialisation; reduce number of ifdefs. 2006-01-27 18:38:14 +00:00
Alasdair Kergon
bfe2b5480e Always print warning if activation is disabled. 2005-12-22 16:13:38 +00:00
Alasdair Kergon
bbf83db14a Set block_on_error parameter if available.
Add target_version.
2005-12-19 21:01:39 +00:00
Alasdair Kergon
e64934773b Fix lvscan snapshot full display.
dmeventd fixes
2005-12-08 17:49:34 +00:00
Alasdair Kergon
15d91f5a68 More dmeventd support. 2005-12-02 20:35:07 +00:00
Alasdair Kergon
5f4b2acfe5 Replacement activation code. [Don't use this yet!] 2005-11-08 22:52:26 +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
352a99b95a Use dm_is_dm_major instead of local copy.
Allow mapped devices to be used as PVs safely.
2005-10-25 19:08:21 +00:00
Alasdair Kergon
03b49fe193 Add 'LVM-' prefix to uuids. 2005-10-19 13:59:18 +00:00
Alasdair Kergon
f894b4b1b7 Attempt to load missing targets using modprobe.
Simplify dev_manager_info().
2005-10-17 18:00:02 +00:00
Alasdair Kergon
2262b32057 Use hash, bitset, malloc, pool from libdevmapper. 2005-10-16 23:03:59 +00:00
Alasdair Kergon
07d318310b Prepare tools to support clustered mirrors. 2005-08-14 23:18:28 +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
e9c761b869 Only ask libdevmapper for open_count when we need it. 2005-01-12 22:58:21 +00:00
Alasdair Kergon
f75c11ed27 update comment 2004-05-11 18:18:14 +00:00
Alasdair Kergon
ff4b8b64c8 Only include visible LVs in active/open counts. 2004-05-11 17:09:09 +00:00
Alasdair Kergon
4922197a33 Begin to separate out segment types. 2004-05-04 21:25:57 +00:00
Alasdair Kergon
25579907fc Support tagged config files. 2004-05-04 18:28:15 +00:00
Alasdair Kergon
c8f601b30f Fix lvs_in_vg_opened counting. 2004-04-14 17:33:04 +00:00
Alasdair Kergon
7d1552c9de Option for auto-fallback to LVM1 tools if running 2.4 without device-mapper. 2004-04-08 15:23:23 +00:00
Alasdair Kergon
6606c3ae81 Update copyright notices. 2004-03-30 19:35:44 +00:00
Alasdair Kergon
8b07664860 Fix vgmknodes to remove dud /dev/mapper entries 2004-03-30 14:40:03 +00:00
Alasdair Kergon
f09fe0ad0f Rename dev_manager_mknodes -> dev_manager_lv_mknodes etc. 2004-03-30 14:38:57 +00:00
Alasdair Kergon
d1f4953ad4 Add list_versions to library 2004-03-26 19:52:09 +00:00
Alasdair Kergon
c1f5052199 Ignore open hidden LVs when checking if deactivation is OK. 2004-03-26 19:13:39 +00:00
Alasdair Kergon
b65b777d2a Suppress move percentage when inactive 2004-03-26 19:10:48 +00:00
Alasdair Kergon
4bd9480dce lv_info_by_lvid 2004-03-26 15:35:01 +00:00
Alasdair Kergon
f2046e0aeb Only print warning message once when compiled without libdevmapper. 2004-03-19 16:26:46 +00:00
Alasdair Kergon
658b58129b additional activation functions 2004-03-08 18:54:13 +00:00
Alasdair Kergon
814643d8a2 rename config file vars & always use / as separator 2004-03-08 18:28:45 +00:00
Alasdair Kergon
de17d760ba host tags 2004-03-08 18:13:22 +00:00
Alasdair Kergon
8c0388e487 vgmknodes also creates necessary nodes in /dev/mapper 2003-11-13 14:11:41 +00:00
Alasdair Kergon
f7dd6d8446 The LVM2 part of vgmknodes [still to do the non-devfs device-mapper bit]. 2003-11-12 19:16:48 +00:00
Alasdair Kergon
0cf96f33ea Check no fs mounted before deactivating. 2003-10-21 22:00:36 +00:00
Alasdair Kergon
914c97239f Another sync point - numerous fixes & clean ups. 2003-07-04 22:34:56 +00:00
Alasdair Kergon
10b29b8d2d pvmove support 2003-04-30 15:26:25 +00:00
Alasdair Kergon
a9953411a8 o Rejig activation code device dependencies to make things a bit more robust
and further reduce the number of ioctl calls made.
o Metadata area struct change.
o Make config file accessible to activation functions & get stripe_filler
  from it.
o Allow kernel to return snapshot status as a fraction or a percentage.
2003-04-24 22:09:13 +00:00
Alasdair Kergon
26e7f2e0c4 Tidy various pre-processing incl. making libdl optional. 2003-03-24 18:08:53 +00:00
Alasdair Kergon
711f7fc681 Activation commands now return success in test mode. 2003-01-17 20:16:23 +00:00
Alasdair Kergon
199e490e7d configure --disable-devmapper if you don't have libdevmapper 2003-01-08 22:44:07 +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
d1d9800ef1 Refactoring. 2002-11-18 14:01:16 +00:00
Alasdair Kergon
c826c0d17c Rename; add some FIXMEs. 2002-05-22 14:03:45 +00:00
AJ Lewis
1951dba955 o Actually read snapshot percentage from the kernel - what a pain! :)
o Not sure if the code in dev_manager is really optimal, but it works..
   will look at adjusting it a bit now.
 o I *think* it works right when one snapshot if full but others aren't,
   but I haven't really been able to test it because the full snapshot
   somehow resets itself and weird things start happening to the system...
2002-05-09 21:17:57 +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
Patrick Caulfield
584404f8f4 Return status from _lv_activate and friends.
Alasdair, I think this is right (and I need it) but you may like to check.
2002-04-11 09:14:04 +00:00
Alasdair Kergon
2ed2a72439 lvrename works on snapshots now 2002-03-18 23:25:50 +00:00
Alasdair Kergon
20c5fcf764 Integrate suspend. 2002-03-14 15:36:07 +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
Joe Thornber
0fe3a2c512 o Add comment describing what we're aiming for with dev_manager.
o  Remove dev_manager_reactivate, since it'll be the same as activate.

o  Merge the mark, visible and dirty fields into the same flags field.
2002-03-07 16:48:46 +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
3bf898526a Remove unused fns. 2002-03-04 14:27:25 +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
Joe Thornber
de6c918392 o Removed old files
o  rewrote activate.c to use dev-manager, I'm sure these two will merge
   at some point.

o  Rename is broken ATM

o  dev-manager puts the calls through to fs.c for layers that have the
   'visible' flag set.
2002-02-26 11:49:17 +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
14a81c5a03 Remove lv_update_write_access: use lv_reactivate directly now instead. 2002-02-20 21:28:22 +00:00
Joe Thornber
5986ec940f o Removed the -z (suspend) option from the tools
o  New function: int lv_setup_cow_store(struct logical_volume *lv)
   This zeroes the start of the cow device.

o  Made lvcreate call above fn.
2002-02-18 15:52:48 +00:00
Joe Thornber
fdc7af232a o Turn the device_create_* functions into device_populate_*, they only
fill in an already created dm_task.  This allows common code, such
  as minor number selection, and read_only to be lifted.
2002-02-12 11:15:45 +00:00
Alasdair Kergon
a62ee8ad27 Document return codes. 2002-02-11 17:42:02 +00:00
Joe Thornber
6d52fb460b o Split activate.c into a high level (remaining in activate.c) and low level (ll-activate.[hc]) API.
o  Creation of a device from an lv now lives in activate-lv.c
2002-02-11 15:48:34 +00:00
Alasdair Kergon
d6750e9d76 lv->minor >= 0 (ejt) 2002-02-04 13:08:31 +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
Alasdair Kergon
7ae5a778d5 Basic support for (read-only) partial activation if any PVs are
missing from a VG.  (Linear targets use the device-mapper 'error' target
which returns ioerror; striped targets use '/dev/ioerror' for now - which must
already exist e.g. as a sufficiently large block device version of /dev/zero).
2002-01-30 15:33:12 +00:00
Joe Thornber
f868d63582 o Similar changes for lv_list. 2002-01-21 16:49:32 +00:00
Joe Thornber
12137231d3 o move the path building functions to lib/activate/names.c
o  Update activate.c and fs.c to use them

o  device names are now of the form <vg>:<lv>
2002-01-21 11:06:32 +00:00
Alasdair Kergon
fae0c5764f Support --version argument and 'version' shell command. 2002-01-17 16:39:24 +00:00
Joe Thornber
f2f2634990 o vgcfgrestore works ! (with the couple of examples I tried). 2002-01-15 17:37:23 +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
2bc25b546a Support for read-only. 2002-01-07 22:28:36 +00:00
Alasdair Kergon
41b2fd5f4d o Use lvm_snprintf wherever return value is used
o Add parameters to set retention limits for backups
2001-12-31 19:09:51 +00:00
Alasdair Kergon
b546cd6d69 Correct activation message. 2001-12-05 00:04:18 +00:00
Alasdair Kergon
a299e38810 Added more log messages. 2001-12-04 23:20:27 +00:00
Alasdair Kergon
c2d72fd402 Add -t or --test arg to all tools that update metadata to avoid
committing metadata changes or (de)activating.
2001-11-28 18:03:11 +00:00
Joe Thornber
6c4ee29605 o Output the correct format for the stripe target 2001-11-28 17:52:27 +00:00
Joe Thornber
39497a4479 o These now compile. 2001-11-27 17:39:15 +00:00
Joe Thornber
0bab65915d o Sync up todays work on converting to the segmented representation of
logical volumes.  It includes:

   format1 changes.

   metadata.h changes.

   lv_manip.c changed (striped allocation still not done though).

   activate.c changes.

Nothing has been near a compiler as yet.

Alasdair can you look at changing display.c to use to output the mappings
in a more segment oriented format please ?

I haven't put the span list into struct physical_volume to represent allocated
extents.  I think the burden of maintaining it for things like lv_extend may
out weigh it's uses.
2001-11-27 16:37:33 +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
Joe Thornber
a7af42f14c o _emit_target wasn't spotting contiguous targets properly. 2001-11-19 15:44:06 +00:00
Joe Thornber
ef8a0eae5c o Use new info interface to dm. 2001-11-19 15:38:39 +00:00
Patrick Caulfield
2fa9bf7052 Use POSIX defined PRIu64 for formatting 64 bit unsigned integer types 2001-11-15 15:18:53 +00:00
Patrick Caulfield
78125be9c2 Use FMT_64 to format 64bit types 2001-11-15 14:27:51 +00:00
Alasdair Kergon
cf4a4a1fa8 Remove hard-coding and create device-mapper directory if required 2001-11-12 17:21:25 +00:00
Joe Thornber
f7a14956d8 o Plug in fs_(add|del)_lv 2001-11-12 12:20:58 +00:00
Alasdair Kergon
94b8220f6a lvdisplay & lvreduce 2001-11-08 16:15:58 +00:00
Alasdair Kergon
4f7a219dac o Always set LVM_READ.
o Avoid duplicate deallocation.
2001-11-07 22:47:43 +00:00
Joe Thornber
2ba80b436f o Added lvs_in_vgs_opened 2001-11-07 15:02:07 +00:00
Joe Thornber
37ed70b9ea o Another pass at the activation code 2001-11-07 11:51:42 +00:00
Alasdair Kergon
642c2e964b lvcreate 2001-11-06 19:02:26 +00:00
Joe Thornber
80f9662b05 o adjacent extents are now merged into a single target when activating. 2001-11-05 13:37:13 +00:00
Joe Thornber
ab269099a7 o build lv name from <vg>_<lv> 2001-11-02 16:45:44 +00:00
Alasdair Kergon
f047219b23 Link in the activation library. 2001-11-02 16:28:04 +00:00
Joe Thornber
ae2bb66535 o First pass at activation 2001-11-02 13:45:05 +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
a381c45a6e vgchange 2001-10-16 16:25:28 +00:00
Joe Thornber
e15559aa3c o spot empty list in build_vg 2001-10-09 17:09:46 +00:00
Joe Thornber
5cffeebbaa o proposed interface to the kernel driver 2001-10-09 16:44:30 +00:00
Joe Thornber
b1713d284d o change pv_read to take a name rather than a device 2001-10-09 16:05:34 +00:00