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Commit Graph

104 Commits

Author SHA1 Message Date
Zdenek Kabelac
2237e93169 Use same signed numbers
Keep unsigned aritmetic.

TODO: we should probably switch dm_split_words() to return unsigned numbers.
(minor API libdm change mostly compatible)
2012-02-23 22:30:20 +00:00
Zdenek Kabelac
19fde08c6a Drop backtrace after log_error
Just a minor change to not give backtrace when log_error has been just
reported.
2012-02-23 22:24:47 +00:00
Zdenek Kabelac
78188982d6 Add check for failure 2012-02-13 11:07:55 +00:00
Zdenek Kabelac
6e40adde76 Add boundary test for number of mirror devs and logs
As atoi may return negative value - test for both limits.
Test log_args for limits before calling alloca().
Code from dmeventd mirror plugin should probably share same code as
we have in mirrored.c.
2012-02-08 11:29:13 +00:00
Alasdair Kergon
52a9ed70c4 Add activation/use_linear_target enabled by default. (prajnoha)
LVM metadata knows only of striped segments - not linear ones.
The activation code detects segments with a single stripe and switches
them to use the linear target.

If the new lvm.conf setting is set to 0 (e.g. in a test script), this
'optimisation' is turned off.
2011-11-28 20:37:51 +00:00
Petr Rockai
118fa896b7 Replace const usage of dm_config_find_node with more appropriate value-lookup
functionality. A number of bugs (copied and pasted all over the code) should
disappear:

- most string lookup based on dm_config_find_node would segfault when
  encountering a non-zero integer (the intention there was to print an
  error message instead)
- check for required sections in metadata would have been satisfied by
  values as well (i.e. not sections)
- encountering a section in place of expected flag value would have
  segfaulted (due to assumed but unchecked cn->v != NULL)
2011-08-31 15:19:19 +00:00
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
4626847312 Use lv_activate_opts struct instead of ACTIVATE_EXCL status flag. 2011-06-17 14:17:16 +00:00
Zdenek Kabelac
55a359615f Add lv_activate_opts structure
To avoid modification of 'read-only' volume group structure
add a new structure to pass local data around the code for LV
activation.

As origin_only is one such flag - replace this parameter with new
struct lv_activate_opts.

More parameters might eventually become part of lv_activate_opts.
2011-06-17 14:14:19 +00:00
Petr Rockai
f9e419bad6 Make vg_mark_partial_lvs also clear existing PARTIAL_LV flags, so it can be
issued repeatedly on the same VG, keeping the PARTIAL_LV flags up to date.
2011-05-07 13:32:05 +00:00
Alasdair Kergon
d6a05b6fd7 pre-release clean-ups 2011-04-29 00:21:13 +00:00
Jonathan Earl Brassow
e720e51548 Replace malloc with zalloc when creating segment_type's 2011-03-25 21:59:42 +00:00
Zdenek Kabelac
c0a8ab7699 Fix !DEVMAPPER_SUPPORT build
Fix build when devmapper is disabled.
2011-02-18 14:29:39 +00:00
Zdenek Kabelac
6990a8c942 Remove unused variable mirr_state and its assignment 2011-01-05 12:27:56 +00:00
Zdenek Kabelac
b00600c247 Remove const usage from destroy callbacks
As const segment_type or const format_type are never released
use their non-const version and remove const downcast from dm_free calls.
This change fixes many gcc warnings we were getting from them.
2010-12-20 13:32:49 +00:00
Zdenek Kabelac
1ea4c6d449 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
Zdenek Kabelac
7837f37e21 Check lv_info() success
Add log_error message for lv_info failure and exit from futher
processing.

Replace 'leg' occurence in debug message with 'image' which
is used in other messages.
2010-12-01 13:01:36 +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
32d1d7b23f Reduce severity of the "mirror transient status" log message (this was never
intended to be a log_error).
2010-08-04 15:55:03 +00:00
Jonathan Earl Brassow
9ba875e502 Building without the '--enable-cmirrord' option means that
CMIRRORD_PIDFILE is not defined.  This makes the build fail.
Therefore, we need to conditionalize the check for cmirrord
based on if CMIRRORD_PIDFILE is defined.
2010-07-21 15:21:24 +00:00
Jonathan Earl Brassow
56fe3c6176 It's not enough to check for the kernel module in the case of cluster
mirrors, we must also check that the log daemon (cmirrord) is running.
The log module can be auto-loaded, but the daemon cannot be
"auto-started".  Failing to check for the daemon produces cryptic
messages that customers have a hard time deciphering.  (The system
messages do report that the log daemon is not running, but people
don't seem to find this message easily.)

Here are examples of what is printed when the module is available,
but the log daemon has not been started.

[root@bp-01 LVM2]# lvcreate -m1 -l1 -n lv vg
  Shared cluster mirrors are not available.

[root@bp-01 LVM2]# lvcreate -m1 -l1 -n lv vg -v
    Setting logging type to disk
    Finding volume group "vg"
    Archiving volume group "vg" metadata (seqno 3).
    Creating logical volume lv
    Executing: /sbin/modprobe dm-log-userspace
    Cluster mirror log daemon is not running
  Shared cluster mirrors are not available.
    Creating volume group backup "/etc/lvm/backup/vg" (seqno 4).
2010-07-21 13:40:21 +00:00
Alasdair Kergon
2d3164a59f Use __attribute__ consistently throughout. 2010-07-09 15:34:40 +00:00
Alasdair Kergon
bc653452a7 Replace strncmp kernel version number checks with proper ones 2010-05-24 23:11:34 +00:00
Alasdair Kergon
fa7fa300e3 Choose between clustered log versions based on kernel version.
Add fixmes for broken strcmp.
2010-05-24 17:46:47 +00:00
Alasdair Kergon
4e553333d9 Update clustered log kernel module name to log-userspace. 2010-05-24 16:30:15 +00:00
Petr Rockai
954df8f3d7 Account for mirror transient status when doing lvconvert --repair. 2010-05-24 15:32:20 +00:00
Zdenek Kabelac
cd3475a8cb Install plugins to subdirs
Target install_dm_plugin installs files to libdir/device-mapper.
Target install_lvm2_plugin installs files to libdir/lvm2.

Both targets creates relative links to libdir to keep the code
compatible with current dlopen handling.

Once we will be able to read plugins from subdir, links
could be removed.
2010-05-06 10:07:46 +00:00
Peter Rajnoha
647d948562 Use UUIDs instead of names while processing event handlers.
Internally, we used DM names instead of UUIDs while processing event
handlers. This caused problems while trying to vgrename a VG with active LVs
where the names are being changed and so the devices were not found then.
The patch also contains a little bit of refactoring, moving "build_dlid" code
found in dev_manager.c to "build_dm_uuid", now in lvm-string.c (so we have
build_dm_uuid and build_dm_name at one place).
2010-04-14 13:01:38 +00:00
Zdenek Kabelac
2db34bd266 INSTALL rules updates
Patch is inspired by Debian's extra patch.

- removes OWNER & GROUP make vars they are parts of INSTALL command.
- adds INSTALL_PROGRAM for executable, uses $(INSTALL)
- adds INSTALL_DATA for non-executable data, uses ($INSTALL)
- adds INSTALL_WDATA for writable non-executable data, uses ($INSTALL)
- adds configure option --enable-write_install - to support
  installatin of writable files used by distribution
- replaces usage of ifeq @LIB_SUFFIX@ with $(LIB_SUFFIX)
- installs .a files from static builds without executable flag
- installs .a files to $(usrlibdir) instead of $(libdir)
- installs all static binaries to $(staticdir)
- create .so links for devel package in $(usrlibdir) instead of
  $(libdir)
- makes .so and .so.LIB_VERSION files within builddir
- removes VERSIONED_SHLIB and created versioned LIB_SHARED automagicaly
- install LIB_SHARED via install_lib_shared target
- install plugins via install_lib_shared_plugin target
- prints whole 'install' command during installation instead of less
  informative "Installing  $(something) $(somewhere)"
- install multiple man pages with one INSTALL command
- use DISTCLEAN_TARGETS instead of creating multiple distclean targets
2010-04-09 21:42:48 +00:00
Zdenek Kabelac
f3491d93a0 Use vpath instead of VPATH.
Usage of VPATH makes troubles when used within $(builddir).
Not only source files are being found through VPATH,
but targets as well. (make --debug=v)

Thus if user builds the code in $(srcdir) and also in some $(builddir)
he gets mangled results as some generated files (i.e. .export.sym)
are 'reused' from $(srcdir) instead of $(builddir).

This patch switches to use vpath were we could explicitly name
suffixes that should be looked via vpath - we must take care,
we do not generate files with these suffixes:
.c, .in, .po, .exported_symbols
2010-04-09 21:34:25 +00:00
zkabelac
0f878a226d Use $(top_builddir) for inclusion of make.tmpl in Makefiles. 2010-03-04 09:51:37 +00:00
zkabelac
ba99186951 Use macro outsize() with check for error return value. 2010-01-07 14:46:51 +00:00
Milan Broz
07e27cac02 Fix pvmove region_size overflow for very large PVs.
Fixes problem reported in
https://www.redhat.com/archives/dm-devel/2009-November/msg00104.html

The region size multiplication can overflow when using 32bit integer.
2009-11-18 16:48:10 +00:00
Alasdair Kergon
eeefbfd38d Allow for a build directory separate from the source. 2009-10-02 19:10:31 +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
Jonathan Earl Brassow
01b09aab43 mirror table generating code: Properly handle 'block_on_errors' and 'cluster' features
The device-mapper mirror CTR table has been changing over time.  This has
now been corrected to handle the old and new methods for invoking the
'block_on_errors' and 'cluster' features.  (The code that does this was
accidentally committed in the previous check-in.  This check-in finishes
the job.)
2009-08-13 19:36:04 +00:00
Milan Broz
563b6561a5 Fix confusing metadata syntax error messages.
If there is syntax error in metadata, it now prints messages
like:
  Couldn't read 'start_extent' for segment 'extent_count'.
  Couldn't read all logical volumes for volume group vg_test.

The segment specification is wrong and confusing.

Patch fixes it by introducing "parent" member in config_node which
points to parent section and config_parent_name function, which
provides pointer to node section name.

Also it adds several LV references where possible.
2009-07-09 11:29:00 +00:00
Alasdair Kergon
c99f525821 Fix last check-ins: seg can be NULL. 2009-02-28 20:04:24 +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
Alasdair Kergon
2ade7a15e2 add libdevmapper-event.h 2008-10-31 22:41:51 +00:00
Alasdair Kergon
3086822cd2 Change clustered mirror kernel module name from cmirror to dm-log-clustered. 2008-07-31 14:43:39 +00:00
Alasdair Kergon
69e4400774 Cease recognising snapshot-in-use percentages returned by early development kernels. 2008-07-15 00:25:52 +00:00
Alasdair Kergon
72ca1ccc23 . 2008-04-10 18:53:36 +00:00
Dave Wysochanski
57cb22ff3c Add vg_is_clustered() helper function.
Should be no functional change.
2008-04-10 17:09:32 +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
2b83c80593 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