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Commit Graph

7520 Commits

Author SHA1 Message Date
Peter Rajnoha
4f6c2951d6 snapshot: fix check for snapshot-merge target presence
If calling _snap_target_present on 2nd and later call and for
a segment with MERGING flag set, we must return the status of
snapshot as well as snapshot-merge target presence, not just
the snapshot one.
2013-05-16 08:17:18 +02:00
Alasdair G Kergon
f12d88f840 activation: fix lv_is_active regressions
Try to fix commit bf2741376d.

lv_is_active is not the same as lv_info(cmd, org, 0, &info, 0, 0).

Introduce and use lv_is_active_locally.
2013-05-15 02:13:31 +01:00
Alasdair G Kergon
2fbe1e6e00 rephrasing: miscellaneous changes
Miscellaneous changes to messages, man pages, comments and WHATS_NEW.
2013-05-15 01:50:42 +01:00
Alasdair G Kergon
2e4a66a761 make: fix exported symbols regex for non-GNU sed
Remove a couple of incorrect backslashes from expressions used to
generate lists of exported symbols so it works with busybox sed.
[John Spencer]
2013-05-14 19:29:26 +01:00
Alasdair G Kergon
c6cf2ed7fd commands: accept --yes globally
Accept --yes on all commands, even ones that don't today have prompts,
so that test scripts that don't care about interactive prompts no
longer need to deal with them.

But continue to mention --yes only in the command prototypes that
actually use it.
2013-05-14 18:45:37 +01:00
Mike Snitzer
8ad7865b42 Fix alignment of PV data area if detected alignment less than 1 MB
This fixes a long standing regression since LVM2 2.02.74 (commit 4efb1d9c,
"Update heuristic used for default and detected data alignment.")

The default PE alignment could be used (via MAX()) even if it was
determined that the device's MD stripe width, or minimal_io_size or
optimal_io_size were not factors of the default PE alignment (either 64K
or the newer default of 1MB, etc).  This bug would manifest if the
default PE alignment was larger than the overriding hint that the
device provided (e.g. default of 1MB vs optimal_io_size of 768K).

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2013-05-13 15:56:47 -04:00
Zdenek Kabelac
6fc67f5509 thin: limited support for -l%FREE allocation
This is just a temporary fix to support allocation of -l%FREE.

The number of free extent serves to calculate estimated metadata
size. This value is then substracted twice to keep some
free space for recover.
2013-05-13 13:13:22 +02:00
Zdenek Kabelac
55fe07ad98 mm: fix leak in fail path
If the dm_realloc would fail, the already allocate _maps_buffer
memory would have been lost (overwritten with NULL).
Fix this by using temporary line buffer.

Also add a minor cleanup to set end of buffer to '\0',
only when we really know the file size fits the preallocated buffer.
2013-05-13 13:13:20 +02:00
Zdenek Kabelac
e926f22457 man: updates 2013-05-13 13:09:30 +02:00
Peter Rajnoha
4407133113 toolcontext: check dm version lazily for udev_fallback setting
Setting the cmd->default_settings.udev_fallback also requires DM
driver version check. However, this caused useless mapper/control
access with ioctl if not needed actually. For example if we're not
using activation code, we don't need to know the udev_fallback as
there's no node and symlink processing.

For example, this premature mapper/control access caused problems
when using lvm2app even when no activation happens - there are
situations in which we don't need to use mapper/control, but still
need some of the lvm2app functionality. This is also the case for
lvm2-activation systemd generator which just needs to look at the
lvm2 configuration, but it shouldn't touch mapper/control.
2013-05-13 11:53:53 +02:00
Zdenek Kabelac
3d0cb0611e lv: fix typedef
Since older gcc is not accepting duplication of same typedef,
stay with predeclared enum type.
2013-05-03 16:02:43 +02:00
Zdenek Kabelac
4741e449e6 test: wait for pid removal 2013-05-03 15:44:15 +02:00
Zdenek Kabelac
f7d5511876 cleanup: shift line down
For better look of  lvs -o help
Though we may need to decide whether to use  'lv_active' or some other
name.
2013-05-03 15:44:15 +02:00
Zdenek Kabelac
deb3c93a19 cleanup: simplify
Use simplier sprintf.
2013-05-03 15:44:14 +02:00
Zdenek Kabelac
986a50e4a1 cleanup: improve previous patch
Make the test earlier, before any dereference of 'argv' pointer.
2013-05-03 15:44:14 +02:00
Zdenek Kabelac
2d3700ba42 report: improve reporting of active state
For reporting stacked or joined devices properly in cluster,
we need to report their activation state according the lock,
which activated this device tree.

This is getting a bit complex - current code tries simple approach -

For snapshot - return status for origin.
For thin pool - return status of the first known active thin volume.
For the rest of them - try to use dependency list of LVs and skip
known execptions.  This should be able to recursively deduce top level
device for given LV.

(in release fix)
2013-05-03 15:43:52 +02:00
Zdenek Kabelac
d2d71330c3 lv: add lv_active_change
Make a separate /lib function for the change of activation state
of the LV.

(in release update)
2013-05-03 15:43:19 +02:00
Zdenek Kabelac
dacc340cc8 pvscan: missing test for id_read_format
(in release fix)
2013-05-03 15:42:44 +02:00
Zdenek Kabelac
f319a61e9c config: fix bitfield for section
Since the cfg_def_type_t is used as bitfield in some tests,
use bitshifting to create valid bit sequence.

(in release fix)
2013-05-03 15:42:44 +02:00
Peter Rajnoha
2ac217d408 udev: fire pvscan --cache properly on CHANGE event for MD devices
Commit 756bcabbfe restricted the
situations at which the LVM autoactivation fires - only on ADD
event for devices other than DM. However, this caused a problem
for MD devices...

MD devices are activated in a very similar way as DM devices:
the MD dev is created on first appeareance of MD array member
(ADD event) and stays *inactive* until the array is complete.
Just then the MD dev turns to active state and this is reported
to userspace by CHANGE event.

Unfortunately, we can't differentiate between the CHANGE event
coming from udev trigger/WATCH rule and CHANGE event coming from
the transition to active state - MD would need to add similar logic
we already use to detect this in DM world. For now, we just have
to enable pvscan --cache on *all* CHANGE events for MD so the
autoactivation of the LVM volumes on top of MD works.

A downside of this is that a spurious CHANGE event for MD dev
can cause the LVM volumes on top of it to be automatically activated.
However, one should not open/change the device underneath until
the device above in the stack is removed! So this situation should
only happen if one opens the MD dev for read-write by mistake
(and hence firing the CHANGE event because of the WATCH udev rule),
or if calling udev trigger manually for the MD dev.

(No WHATS_NEW here as this fixes the commit mentioned
above and which has not been released yet.)
2013-05-03 13:55:53 +02:00
Peter Rajnoha
baf9ef2047 udev: add a few comments about variables used to recognize events 2013-05-03 11:01:57 +02:00
Zdenek Kabelac
f39f5b86c3 cleanup: use dm_list_iterate_items 2013-04-25 17:33:24 +02:00
Zdenek Kabelac
c1eb17ab07 lvchange: use vg mempool
Using vg mempool for vg related data. Since we have VG in write mode,
prefer to use this mempool instead of cmd mempool.
2013-04-25 17:33:24 +02:00
Zdenek Kabelac
a5ad1ee858 dmeventd: return error if device is not found
Do not return 'ok' status if we have failed to found device.
(Since it looks like the device is monitored)
2013-04-25 17:33:24 +02:00
Zdenek Kabelac
8d004b5127 report: show active state of LV
For non clustered VG - show  "active"/""

For clustered VG its more complex:

"local exclusive"
"remote exclusive"
"locally"
"remotely"
2013-04-25 17:33:24 +02:00
Zdenek Kabelac
8b18ab76d2 report: show dmeventd monitoring status
Add new lvs segment field 'Monitor' showing 3 states:

"monitored" - LV is monitored by dmeventd.

"not monitored" - LV is currently not being monitored by dmeventd

"" (empty) - LV does not support monitoring, or dmeventd support
             is not compiled in.
2013-04-25 17:33:24 +02:00
Zdenek Kabelac
3f7de58e96 man: lvextend --use-policies
Add missing man info.
2013-04-25 17:33:24 +02:00
Zdenek Kabelac
f84f12a6a3 snapshot: rework cluster creation and removal
Support for exclusive activation of snapshots revealed some problems.

When snapshot is created, COW LV is activated first (for clearing) and
then it's transformed into snapshot's COW LV, but it has left the lock
for such LV active in cluster and this lock could not have been removed
from dlm, unless snapshot has been removed within same dlm session.

If the user tried to remove snapshot after rebooting node, the lock was
missing, and COW LV could not have been detached.

Patch modifes the approach in this way:

Always deactivate COW LV for clustered vg  after clearing (so it's
activated again via imlicit snapshot activation rule when snapshot is activated).

When snapshot is removed, activate COW LV as independend LV, so the lock
will exist for such LV, but only when the snapshot is active.

Also add test case for testing snapshot removal after cluster reboot.
2013-04-25 17:33:24 +02:00
Zdenek Kabelac
d51b7e5404 clvmd: avoid pretesting of dev availability
Patch fixes hidden problem with lvm metadata caching.

When the pretest was made, only the commited data have been cached back
since the call lv_info_by_lvid() triggers mda read operation.
However call of lv_suspend_if_active() also reads precommited metadata.
The problem is visible in this sequence of calls:

vg_write(), suspend_lv(), vg_commit(), resume_lv()

which may end with leaving outdated mda in lvm cache, since vg_write()
drops cached metadata and vg_commit() only transforms precommited
to commited metadata, but in the case of pretesting we have
no precommited mda available so the cache will continue to use
old metadata. This happens, when suspend LV is inactive.
2013-04-25 17:33:22 +02:00
Zdenek Kabelac
320d7f3596 test: correct order
Call notify after resume (like in enable_dev()).
2013-04-23 17:05:19 +02:00
Zdenek Kabelac
23775c8fe8 test: do not break test if there is no .cache
When running test on read /dev, we obtain devices from udev,
and there is no .cache file, so do not stop test if the file
is missing.
2013-04-23 14:36:27 +02:00
Zdenek Kabelac
67fc56f5ca test: fix filter
Fix filter for use with real /dev
2013-04-23 14:28:27 +02:00
Zdenek Kabelac
c7c5a840c1 test: new test new fail
Do not hide new features into old test files.
2013-04-23 14:15:04 +02:00
Zdenek Kabelac
68ef288901 raid: remove wrong pool free
No, we cannot free pool members here.
2013-04-23 14:06:40 +02:00
Zdenek Kabelac
1445d40794 cleanup: type
oops another type inserted.
2013-04-23 12:35:10 +02:00
Zdenek Kabelac
45eeb70b02 config: merge timestamps
Merging multiple config files together needs to know newest (highest)
timestamp of merged files. Persistent cache file is being used
only in case, the config file is older then .cache file.
2013-04-23 12:31:16 +02:00
Zdenek Kabelac
2925023411 cleanup: improve messages
Add verbose message when we will not obtain devices from udev
(i.e. testing is using different udev dir, and the log was
giving misleading info about using udev)

Add proper error message if zalloc from pull would have failed.

Fix typo obolete -> obsolete
2013-04-23 12:27:33 +02:00
Zdenek Kabelac
35ab841ecf cleanup: drop zeroing of zallocated data 2013-04-23 12:27:33 +02:00
Zdenek Kabelac
a12f92c494 format1: add workaround for vg_set_fid
Since we want to set fid just before return of vg,
add this termporary workaround.
2013-04-21 23:53:53 +02:00
Zdenek Kabelac
994c32272e test: singlenode minor cleanups
Move unnecessary code out of locks.
2013-04-21 23:15:07 +02:00
Zdenek Kabelac
9cdcde494f cleanup: drop unwanted ';' 2013-04-21 23:15:07 +02:00
Zdenek Kabelac
5a751ad703 cleanup: use proper activation_change_t 2013-04-21 23:14:57 +02:00
Zdenek Kabelac
855175fa26 cleanup: add printf attribute
Add gcc attribute for printf for daemon_logf().
2013-04-21 23:14:05 +02:00
Zdenek Kabelac
d38af2857f cleanup: cast to len's type
Cleanup different signess gcc warning.
2013-04-21 23:14:05 +02:00
Zdenek Kabelac
4eb8db26ac cleanup: convert set of strncat into a single printf
Use single snprintf for better control of used bufsize,
and also increased buffer to 128char to ensure all
chars will always fit.
2013-04-21 23:14:05 +02:00
Zdenek Kabelac
4e1ac7faf1 cleanup: add some FIXMEs 2013-04-21 23:14:05 +02:00
Zdenek Kabelac
dfca5dac9c cleanup: explicit check for nonnull pointer
Since execvp requires nonnull args - add explicit check.
2013-04-21 23:14:05 +02:00
Zdenek Kabelac
dd4fdce16c cleanup: drop unused assignment
Assigned values are unused.
2013-04-21 23:14:04 +02:00
Zdenek Kabelac
1951798d72 vgread: fix fid transfer for lvm1 and pool format
Assign fid as the last step before returning VG.
Make the format reader for 'lvm1' and 'pool' equal to 'lvm2' format reader.

It has caused memory corruption to lvmetad as it later calls
destroy_instance() to allocated fid. This patch should fix problems
with crashing test lvmetad-lvm1.sh.
2013-04-21 23:13:57 +02:00
Zdenek Kabelac
5e7eae59da lv_manip: check remove_seg_from_segs_using_this_lv()
Add missing check for result of remove_seg_from_segs_using_this_lv().
Failure is reported as internal error.
2013-04-21 23:10:43 +02:00