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Commit Graph

76 Commits

Author SHA1 Message Date
Zdenek Kabelac
e50d9e2c57 Const fixing
Fixing some const warnings - with API change in:

int vg_extend(struct volume_group *vg, int pv_count, const char *const *pv_names,

Change is needed - as lvm2api expects const behaviour here.
So vg_extend() is doing local strdup for unescaping.

skip_dev_dir return const char* from const char* vg_name.

Rest of the patch is cleanup of related warnings.

Also using dm_report_filed_string() API change to simplify
casting in _string_disp and _lvname_disp.
2011-02-18 14:47:28 +00:00
Jonathan Earl Brassow
8f1cc91a84 Fix for bug 677739: removing final exclusive cmirror snapshot,
results in clvmd deadlock

When a logical volume is activated exclusively in a cluster, the
local (non-cluster-aware) target is used.  However, when creating
a snapshot on the exclusive LV, the resulting suspend/resume fails
to load the appropriate device-mapper table - instead loading the
cluster-aware target.

This patch adds an 'exclusive' parameter to the pertinent resume
functions to allow for the right target type to be loaded.
2011-02-18 00:36:04 +00:00
Jonathan Earl Brassow
1ce9f8621b Allow snapshots in a cluster as long as they are exclusively
activated.

In order to achieve this, we need to be able to query whether
the origin is active exclusively (a condition of being able to
add an exclusive snapshot).

Once we are able to query the exclusive activation of an LV, we
can safely create/activate the snapshot.

A change to 'hold_lock' was also made so that a request to aquire
a WRITE lock did not replace an EX lock, which is already a form
of write lock.
2011-02-04 20:30:17 +00:00
Zdenek Kabelac
77e3610e1a Speedup consequent activation calls
Stop calling fs_unlock() from lv_de/activate().
Start using internal lvm fs cookie for dm_tree.
Stop directly calling dm_udev_wait() and
dm_tree_set/get_cookie() from activate code -
it's now called through fs_unlock() function.

Add lvm_do_fs_unlock()

Call fs_unlock() when unlocking vg where implicit unlock solves the
problem also for cluster - thus no extra command for clustering
environment is required - only lvm_do_fs_unlock() function is added
to call lvm's fs_unlock() while holding lvm_lock mutex in clvmd.

Add fs_unlock() also to set_lv() so the command waits until devices
are ready for regular open (i.e. wiping its begining).

Move fs_unlock() prototype to activation.h to keep fs.h private
in lib/activate dir and not expose other functions from this header.
2011-01-10 14:02:30 +00:00
Petr Rockai
e6ce16ae13 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
7f5b44b423 Allow internal suspend and resume of origin without its snapshots. 2010-08-17 16:25:32 +00:00
Alasdair Kergon
394c628931 Monitor origin -real device below snapshot instead of overlay device. (brassow) 2010-08-17 01:16:41 +00:00
Alasdair Kergon
063436c82b Various small cleanups and fixes related to monitoring. 2010-08-16 22:54:35 +00:00
Petr Rockai
954df8f3d7 Account for mirror transient status when doing lvconvert --repair. 2010-05-24 15:32:20 +00:00
Milan Broz
2b129732b0 Skip also special lvm devices in scan (if ignore suspended is used).
This should avoid various races between dmeventd on multiple nodes
in cluster where one node already repairing device and another
run full scan and locks the device.
2010-05-13 18:38:38 +00:00
Mike Snitzer
4a76f5c764 When removing a snapshot avoid preloading the origin if the
snapshot-merge target is not active.
2010-04-23 02:57:39 +00:00
Milan Broz
c440f39874 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
Alasdair Kergon
2ccdb165e3 Introduce percent_range_t and centralise snapshot full/mirror in-sync checks. 2009-10-01 00:35:29 +00:00
Alasdair Kergon
6f53e4b536 Attempt cleanup in child before execing new binary in exec_cmd() 2009-02-28 00:54:06 +00:00
Alasdair Kergon
a2bfad1c29 Right, a simple build (without options) is working again. 2008-11-03 22:14:30 +00:00
Dave Wysochanski
6790656af6 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
e3db0b39b9 Add detection of clustered mirror log capability.
Currently only check for kernel module presence.
2008-04-07 10:23:47 +00:00
Alasdair Kergon
c74fa11518 readahead activation code (but no dm support yet) 2007-11-12 20:51:54 +00:00
Alasdair Kergon
3f507a26fb Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1. 2007-08-20 20:55:30 +00:00
Jim Meyering
7454664997 Add "const" attributes where possible: first cut. 2007-08-07 09:06:05 +00:00
Alasdair Kergon
10d3496a17 Split metadata-external.h out from metadata.h for the tools to use. 2007-07-18 15:38:58 +00:00
Alasdair Kergon
0b55d7d0d8 Fix vgrename active LV check to ignore differing vgids. 2007-03-08 21:08:25 +00:00
Alasdair Kergon
71f06d51ed Add devices/ignore_suspended_devices to ignore suspended dm devices. 2007-01-25 21:22:30 +00:00
Alasdair Kergon
f4bd12e8e9 register->monitor etc. 2007-01-19 22:21:45 +00:00
Alasdair Kergon
d039ce89af Add LV column to reports listing kernel modules needed for activation. 2006-10-03 17:55:20 +00:00
Alasdair Kergon
608eedf88d 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
445dd17db3 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
ead252fee4 Add mirror_library description to example.conf.
More compile-time cleanup.
2006-05-11 17:58:58 +00:00
Alasdair Kergon
535c3ede96 more snapshot code tidying 2006-04-06 14:06:27 +00:00
Alasdair Kergon
966d608dc5 Set block_on_error parameter if available.
Add target_version.
2005-12-19 21:01:39 +00:00
Alasdair Kergon
41c86b0d19 Replacement activation code. [Don't use this yet!] 2005-11-08 22:52:26 +00:00
Alasdair Kergon
bcc400dafa 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
e092ce51f6 Attempt to load missing targets using modprobe.
Simplify dev_manager_info().
2005-10-17 18:00:02 +00:00
Alasdair Kergon
67eb7723d6 Use hash, bitset, malloc, pool from libdevmapper. 2005-10-16 23:03:59 +00:00
Alasdair Kergon
a0aedf299a Prepare tools to support clustered mirrors. 2005-08-14 23:18:28 +00:00
Alasdair Kergon
369549d23f Only ask libdevmapper for open_count when we need it. 2005-01-12 22:58:21 +00:00
Alasdair Kergon
32667ca256 Option for auto-fallback to LVM1 tools if running 2.4 without device-mapper. 2004-04-08 15:23:23 +00:00
Alasdair Kergon
66ed5f82c4 Update copyright notices. 2004-03-30 19:35:44 +00:00
Alasdair Kergon
54a1abb284 Add list_versions to library 2004-03-26 19:52:09 +00:00
Alasdair Kergon
44a1ac0cf3 lv_info_by_lvid 2004-03-26 15:35:01 +00:00
Alasdair Kergon
80de983023 additional activation functions 2004-03-08 18:54:13 +00:00
Alasdair Kergon
0a109fbd03 The LVM2 part of vgmknodes [still to do the non-devfs device-mapper bit]. 2003-11-12 19:16:48 +00:00
Alasdair Kergon
8449314da2 Another sync point - numerous fixes & clean ups. 2003-07-04 22:34:56 +00:00
Alasdair Kergon
120faf2a58 pvmove support 2003-04-30 15:26:25 +00:00
Alasdair Kergon
1d3e407c8f 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
54752c2305 Support snapshot status fraction. 2003-04-15 13:20:16 +00:00
Alasdair Kergon
2f4d91fd69 configure --disable-devmapper if you don't have libdevmapper 2003-01-08 22:44:07 +00:00
Alasdair Kergon
dd2157534b 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
81c44790d5 Refactoring. 2002-11-18 14:01:16 +00:00
Alasdair Kergon
b8769751f6 Rename; add some FIXMEs. 2002-05-22 14:03:45 +00:00