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Commit Graph

17978 Commits

Author SHA1 Message Date
David Teigland
7502f78678 Revert "handle duplicate vgids"
This reverts commit bd2baeaaa6.

This commit broke vgrename because vgrename relies on old bugs
in lvmcache_update_vg_from_write and lvmcache_update_vgname
which need to be fixed first.
2022-01-11 16:04:51 -06:00
David Teigland
bd2baeaaa6 handle duplicate vgids
The approach to duplicate VGIDs has been that it is not possible
or not allowed, so the behavior has been undefined.  The actual
result was unpredictable and/or broken, and generally unhelpful.

Improve this by recognizing the problem, displaying the VGs,
and printing a warning to fix the problem.  Beyond this,
using VGs with duplicate VGIDs remains undefined, but should
work well enough to correct the problem with vgchange -u.

It's possible to create this condition without too much difficulty
by cloning PVs, followed by an incomplete attempt at making the two
VGs unique (vgrename and pvchange -u, but missing vgchange -u.)
2022-01-06 10:15:16 -06:00
David Teigland
42a16aa6f3 lvmlockd: cleanup after sanlock_rem_lockspace error
When storage is lost under a sanlock VG, and kill_vg/drop_vg
are used, sanlock_rem_lockspace() may return an error, but
the cleanup steps should still be performed.  Without the
cleanup, gl_lsname_sanlock was not cleared.  This caused
future lock requests to fail with ENOLS, but the NO_GL_LS
flag was not set due to gl_lsname_sanlock being set.
This caused lockd_global(sh) in lvm commands to fail when
they could succeed.

Fix from guozhonghua216
2022-01-04 14:53:47 -06:00
Zdenek Kabelac
04fbffb116 label: cache dm device list
Since we check for present DM devices - cache result for
futher use of checking presence of such device.

lvm2 uses cache result for label scan, but also when
it tries to activate or deactivate LV - however only simple
target 'striped' is reasonably supported.

Use disable_dm_devs to be able to control when lv_info()
get cache or uncached results.

TODO: support more type, however this is getting very complicated.
2021-12-20 16:13:28 +01:00
Zdenek Kabelac
0d67bc96fd activate: add get_device_list
Add funtion get_device_list() to get list of active DM devices.
Handled through new dm_task_get_device_list().
2021-12-20 16:13:28 +01:00
Zdenek Kabelac
988ea0e94c devicemapper: add dm_task_get_device_list
New API extension (internal ATM) for getting a list
of active DM device with extra features like i.e. uuid.

To easily lookout for existing UUID in device list,
there is: dm_device_list_find_by_uuid()

Once the returned structure is no longer usable call:
dm_device_list_destroy()

Struct dm_active_device {} holds all the info,
but is always allocated and destroyed within library.

TODO: once it's stable, copy to libdm
2021-12-20 16:13:28 +01:00
Zdenek Kabelac
90da953fd2 libdm: unmangling UUID for DM_DEVICE_LIST
Properly unmangle UUID if they are provided as result
of DM_DEVICE_LIST ioctl on newer linux kernels.
2021-12-20 16:13:28 +01:00
Zdenek Kabelac
65236ee722 activate: device_is_usable
Move checking of usable uuid into separate function
and pass in also cmd context.
2021-12-20 16:13:28 +01:00
Zdenek Kabelac
5a78979b68 lvmcmdline: comment reset of configuration settings
We used to reset 'settings' to their defaults after command is finished.
This however has a drawback we lose all the logging after this point.

So this patch disables this 'reset' to observe for side-effects.

lvm shell should be getting reset when next command is run -
so this might or might not have some 'hidden' effects.

ATM it looks like nothing really bad should happen - we just should be
able to get more logs - at least from normal commands.
2021-12-20 16:13:28 +01:00
Zdenek Kabelac
39a121ddbc libdm: correct version check
If there ever would be API version 5,
these check would give incorrect results.
2021-12-20 16:13:28 +01:00
Zdenek Kabelac
47ac2659d5 activate: cache driver_version result 2021-12-20 16:13:28 +01:00
Zdenek Kabelac
26e6580dfb toolcontext: reuse destroy_config_context
Call existing destroy_config_context() to destroy
some parts of cmd_context.
2021-12-20 16:13:28 +01:00
Zdenek Kabelac
09a4b56895 hash: raise hash table size
With slightly bigger hash tables, there is considerable
less hash collisions.
2021-12-20 16:13:28 +01:00
Zdenek Kabelac
ed1651d11f toollib: avoid repeated remove of online vg
Call just once unlink after every deactivation of LV from VG.
2021-12-20 16:13:28 +01:00
Andrew Walsh
522561e64b vdo: ensure VDO config is removed
Make sure to remove the VDO config after conversion
of LVM-backed VDO.

Addresses point 3 in rhbz#1987024#c5
2021-12-20 16:13:28 +01:00
David Teigland
0f71183f94 man lvmautoactivation: replace systemctl with journalctl 2021-12-14 12:02:08 -06:00
David Teigland
fbd8b0cf43 udev: remove -r from systemd-run
If the transient service remains after it's done, then
it prevents the same transient service from being run
again later if the PVs are detached and reattached
(although the behavior of a second autoactivation is not
well defined and may only work in limited cases.)
2021-12-14 11:57:13 -06:00
наб
6a431eb242 devices: recognise rbd (ceph rados block device)
Description stolen from linux d/b/rbd.c L3:
  rbd.c -- Export ceph rados objects as a Linux block device

16 partitions seem to make sense according to L90:
  #define RBD_SINGLE_MAJOR_PART_SHIFT 4

Running *scan -vvvvvvdddddd yields
  #filters/filter-type.c:28            /dev/rbd1p5: Skipping: Unrecognised LVM device type 252
  #filters/filter-persistent.c:131           filter caching bad /dev/rbd1p5
right now, and adding
  types = ["rbd", 252]
to /e/l/lvm.conf (with the matching "252 rbd" in /p/devices) works as a
per-machine fix:
  rbd1               252:16   0      1T  1 disk
  |-rbd1p1           252:17   0    243M  1 part
  |-rbd1p2           252:18   0      1K  1 part
  `-rbd1p5           252:21   0 1023.8G  1 part
    `-dev01--vg-root 253:0    0 1023.8G  0 lvm
but rbd is supported by upstream so it'd be nice to have it work OOB
2021-12-13 13:32:06 -06:00
David Teigland
c28541eccd lvcreate: include recent options
The permitted option list in lvcreate has not kept
up with command-lines.in.
2021-12-13 08:59:31 -06:00
David Teigland
d803d9202c man: add section about static autoactivation 2021-12-06 13:20:32 -06:00
David Teigland
ae54e75176 device_id: handle wwid with spaces or control characters
non-standard wwid can be reported from sysfs with spaces/etc.
replace with "_"
2021-12-02 13:33:18 -06:00
David Teigland
455c29b10d print warning about unrecognized journal option value 2021-12-02 12:40:52 -06:00
David Teigland
c42a05c3ec pvscan: fix error message for invalid devname
uninitialized name buffer used in message.
fixes "pvs_online: include devname in pvid files"
2021-12-01 14:38:17 -06:00
David Teigland
05d9a01351 pvscan: fix filter symlink checks
Fixes commit "pvscan: match device arg to filter symlink"
which failed to account for the fact that filter entries
are not just path names but include "a" or "r", etc.
2021-12-01 13:42:32 -06:00
David Teigland
d5402e55f6 devices file: don't write in test mode 2021-12-01 10:08:08 -06:00
David Teigland
71e7ebb3e4 tests devicesfile-devname.sh drop mdadm chunk 2021-12-01 08:56:05 -06:00
Marian Csontos
36095ac374 spec: Add lvmautoactivation man page 2021-12-01 15:36:34 +01:00
David Teigland
470b967bc5 pvscan: limit md device_hint for slow autoactivation
The device_hint name in the metadata was meant to prevent
autoactivation from md components, but the name checks were
more general and would catch unnecessary cases.
2021-11-30 09:06:08 -06:00
David Teigland
d12baba1a9 pvscan: match device arg to filter symlink
This fixes an issue related to the optimization in
  "pvscan: only add device args to dev cache"

If the devices file is not used, and the lvm.conf filter
accepts devices via symlink names, then those devices won't
be accepted by pvscan for autoactivation.  To resolve this,
recognize when the filter contains symlinks and disable the
optimization.  When the optimization is disabled, a full
dev_cache_scan is performed, and symlinks are associated
with the device names passed to pvscan.  filter-regex
will accept a device if symlinks to that device are accepted.
2021-11-29 17:13:44 -06:00
David Teigland
009007484b man: lvmautoactivation
new topical man page describing autoactivation
2021-11-29 11:10:02 -06:00
David Teigland
01bf8e1747 devices: exclude md components when duplicate pvs are seen
Improve handling of md components that get through the
filter, like the previous improvement for multipath.
If md components get through the filter and trigger
duplicate PV code, then eliminate any devs entirely
that are not an md device.
2021-11-22 15:10:43 -06:00
David Teigland
114e1cfee5 fix spelling of pruning 2021-11-19 12:02:35 -06:00
David Teigland
212b1fc529 devices: exclude multipath components based on matching wwid
If multipath component devices get through the filter and
cause lvm to see duplicate PVs, then check the wwid of the
devs and drop the component devices as if they had been
filtered.  If a dm mpath device was found among the duplicates
then use that as the PV, otherwise do not use any of the
components as the PV.

"duplicate PVs" associated with multipath configs will no
longer stop commands from working.
2021-11-18 17:41:00 -06:00
David Teigland
b8f4ec846d display: ignore --reportformat
Using the option would do nothing useful but would
print extraneous braces.
2021-11-17 10:40:27 -06:00
David Teigland
e4b8726b6d Revert "tests devicesfile-devname: remove searched_devnames"
This reverts commit 8e61c0ad6e.

The changes from "device_id: searched_devnames improvements"
allow this to work without the external removal.
2021-11-16 14:30:09 -06:00
David Teigland
5c71aa7510 tests pv-ext-flags: work with devices file 2021-11-16 14:29:22 -06:00
David Teigland
5c4ce4669e device_id: searched_devnames improvements
Remove the searched_devnames file in a couple more places:
. When hints need refreshing it's possible that a missing
  devices file entry could be found by searching devices
  again.
. When a devices file entry devname is first found to be
  incorrect, a new search for missing entries may be
  useful.
2021-11-16 14:29:17 -06:00
David Teigland
fee3937002 device_id: fix search on filtered device
When devnames are used as device ids and devnames change,
then new devices need to be located for the PVs.  If the old
devname is now used by a filtered device, this was preventing
the code from searching for the new device, so the PV was
reported as missing.
2021-11-16 09:29:24 -06:00
David Teigland
8e61c0ad6e tests devicesfile-devname: remove searched_devnames
remove /run/lvm/searched_devnames when preparing each test
in case it has appeared on the system
2021-11-15 18:04:10 -06:00
David Teigland
89c54db16c vgchange autoactivation: error path cleanup
If the optimized label scan fails (using online files),
then clear the device state prior to falling back to the
standard label_scan.  This avoids printing output about
unexpected state.
2021-11-15 11:07:11 -06:00
David Teigland
c5f998aec4 device_id: match different dm device names
If a devices file entry for a dm device is using the devname
for the device id, then recognize different dm names as matching.
2021-11-12 16:42:51 -06:00
David Teigland
4926061d32 tests: udev-pvscan-vgchange clear services 2021-11-12 12:10:26 -06:00
David Teigland
66f0fe57c3 online files: fix vgname check
The pvs_online file for a PV will not contain a vgname
if the PV has no metadata, so don't require matching
vgname with the pvs_lookup file.
2021-11-12 11:52:36 -06:00
David Teigland
5dbf316cee pvscan: consistent creation of pvs_lookup file
Consistently create the pvs_lookup file for VGs with
more than one PV.  Previously the file create would be
skipped if all the PVs happened to already be online.
That led to unpredicatable results in an uncommon case
(when the last PV to come online is the only PV with
metadata.)
2021-11-12 11:40:06 -06:00
David Teigland
b945ea1c93 tests vgchange-pvs-online: clean up with devices file
changing the dev names resulted in stale devices file
entries that created noise in the output.
2021-11-11 16:38:10 -06:00
David Teigland
20c550ab10 tests: udev-pvscan-vgchange fix wait
the service now remains after completion
2021-11-11 16:04:24 -06:00
David Teigland
0e0faf30e0 vgchange autoactivation: lock vg early to avoid second label scan
Copy another optimization from pvscan -aay to vgchange -aay.
When using the optimized label scan for only one VG, acquire the
VG lock prior to the scan.  This allows vg_read to then skip the
repeated label scan that normally happens after locking the vg.
2021-11-10 16:50:50 -06:00
David Teigland
92e741eda0 vgchange: move autoactivation setup code
into its own function, no functional change.
2021-11-10 14:44:11 -06:00
David Teigland
d608837b2a filter-sysfs: support old kernels without sys/dev/block
rhel5 for example doesn't have /sys/dev/block
2021-11-09 11:54:48 -06:00
David Teigland
73b4602f21 pvs_online: include devname in pvid files
Include the device name in the /run/lvm/pvs_online/pvid files.
Commands using the pvid file can use the devname to more quickly
find the correct device, vs finding the device using the
major:minor number.  If the devname in the pvid file is missing
or incorrect, fall back to using the devno.
2021-11-09 11:26:26 -06:00