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Commit Graph

17353 Commits

Author SHA1 Message Date
Zdenek Kabelac
3cc9efc0ed snapshot: create origin of virtual snap read only
When creating old fashioned way thick virtual snapshot,
use read-only 'zero' _vorigin device.
2021-02-10 15:39:03 +01:00
Zdenek Kabelac
96910de4c7 dev-cache: remove duplicated allocation
Merge mistake missed to remove allocation that is now postponed
until it's really needed.
2021-02-10 15:38:18 +01:00
David Teigland
f74f94c2dd dev_get_primary_dev: fix invalid path check
Fix commit bee9f4efdd "filter-mpath: work with nvme devices"
which removed setting the path for readlink.
2021-02-09 09:52:53 -06:00
Zdenek Kabelac
427121efc7 dev-type: sysfs attrs without sectors
Split function for reading attrs in sectors.
2021-02-09 00:49:14 +01:00
Zdenek Kabelac
ef2e0d3d68 typo: fixes
forgotten merge from last batch.
2021-02-08 23:53:41 +01:00
Zdenek Kabelac
d280999b62 WHATS_NEW: updates 2021-02-08 23:43:38 +01:00
Zdenek Kabelac
d422aa7924 dev-type: convert to use log_warn
Keep log_error designated only for 'erroring' condition of command
and replace these errors with log_warn() WARNING.

Also do some indent changes.
2021-02-08 23:43:38 +01:00
Zdenek Kabelac
3bf2ca11d9 dev-type: use fopen for sysfs file
Directly open sysfs files and save extra stat() call which
is not adding any extra safety in sysfs dir.
2021-02-08 23:43:38 +01:00
Zdenek Kabelac
e429e69b65 dev-type: dev_is_pmem reuses topology read code 2021-02-08 23:43:38 +01:00
Zdenek Kabelac
2c597c73a8 dev-cache: better code reuse for _add_alias
Move path copying into _add_alish together with hashing.
Remove duplicated code.
2021-02-08 23:43:38 +01:00
Zdenek Kabelac
be9b731f44 dev-cache: check for nvme name while adding alias
Instead of repeated list retest, compare name once during add of alias.
2021-02-08 23:43:38 +01:00
Zdenek Kabelac
9b173bb931 targets: use target_present_version
Skip duplicated  dm version   ioctl() on every startup.
2021-02-08 23:43:38 +01:00
Zdenek Kabelac
6373f39092 tests: check event_activation can be disabled 2021-02-08 23:43:38 +01:00
Zdenek Kabelac
b86eb913c1 tests: support for resized cached LVs
Support for cached LVs is now enabled.
2021-02-08 23:43:38 +01:00
Zdenek Kabelac
5ec24dfb0b lv_resize: support resizing of cached volumes
Automatically figure out resizable layer in the LV stack and
resize it online.

Split check for reshaped raids and postpone removal of
unused space after finished reshaping after metadata archiving.

Drop warning about unsupported automatic resize of monitored thin-pool.

Currently there is not yet support for resize of writecache.
2021-02-08 23:43:10 +01:00
Zdenek Kabelac
39dec26508 lv_manip: reuse function also during reduction
Move function _setup_lv_size() in front of _lv_reduce() so
it can be reused also in this function.
Avoid propagating 0 length to upper layer.
2021-02-08 23:18:44 +01:00
Zdenek Kabelac
bdc2f4c704 lv_resize: use 'bad' code path for error case 2021-02-08 23:18:44 +01:00
Zdenek Kabelac
eed060f040 thin: check for overprovisioning only once 2021-02-08 23:18:44 +01:00
Zdenek Kabelac
99e168162a thinpool: use lv_config_profil for crop_metadata
Better support for thin-pools with individual profiles introduced
in the recent patch b4212be2e7.
2021-02-08 23:18:44 +01:00
Zdenek Kabelac
2be585b79c pvscan: support disabled event_activation
In past we had this control with use_lvmetad check for
pvscan --cache -aay

Howerer this got lost with lvmetad removal commit:
117160b27e

When user sets lvm.conf global/event_activation=0
pvscan service will no longer auto activate any LVs on appeared PVs.
2021-02-08 23:18:44 +01:00
David Teigland
018bba897c fix for md component detection changes
And some fine tuning of when the checks are applied
in "start" mode.
2021-02-08 11:23:42 -06:00
David Teigland
df4c50396b lvmcache: remove unused variable from last commit 2021-02-08 10:22:56 -06:00
David Teigland
87ee401eea md component detection changes
Move extra md component detection into the label scan phase.
It had been in set_pv_devices which was deep within the vg_read
phase, which wasn't a good place (better to detect that earlier.)
Now that pv metadata info is available in the scan phase, the pv
details (size and device_hint) can be used for extra md checking.

Use the device_hint from the pv metadata to trigger a full md
component check if the device_hint begins with /dev/md.

Stop triggering full md component checks based on missing
udev info for a dev.

Changes to tests to reflect that the code is now detecting
md components in some test case that it wasn't before.
2021-02-05 16:23:51 -06:00
David Teigland
67d8fb1e83 dm: add debugging to include table differences
When dm tables are reloaded, include log_debug info
that will show the details of why the reload is needed.
2021-02-03 13:44:10 -06:00
David Teigland
834cba000a hints: clean up comment and init settings
no behavior change
2021-02-02 15:14:05 -06:00
David Teigland
cb54d0801d cachevol: allow forced detaching of damaged or invalid cachevol
A cachevol can be forcibly detached when it's missing devices.
Also allow this if it's damaged/invalid and unrepairable.
This would be needed to recover data from the origin LV after
a cachevol is lost or damaged beyond repair.
2021-02-02 14:31:23 -06:00
Zdenek Kabelac
ae2af1d5ed test: check read_only_volume_list tagging works 2021-02-02 21:23:39 +01:00
Zdenek Kabelac
51c83f1483 lvcreate: use lv_passes_readonly_filter
Check if created LV is going to be activated read-only
because such LV cannot be zeroed (equals to use
option '-pr').
2021-02-02 21:23:39 +01:00
David Teigland
8454ce66c5 writecache: let block_size setting override device block sizes
In cases where lvconvert does not detect a fs block size on the
device, it falls back to choosing a writecache block size based
on the device's LBS and PBS (tries to match those.)

If the user specifies a writecache block size on the command
line (--cachesettings block_size=4096|512), lvconvert currently
fails and reports an error if the user-specified value does not
match the value lvconvert would have chosen based on LBS and PBS.

The purpose of allowing a user-specified value on the command line
is to override what lvconvert would otherwise do, so change this
to just print a warning that the user value does not match the
value that would be chosen based on the LBS/PBS, and then take
the user-specified value as the writecache block size.
2021-02-02 13:52:31 -06:00
David Teigland
bee9f4efdd filter-mpath: work with nvme devices
Recognize when a device is nvme, and apply filter-mpath to
nvme devices in addition to scsi devices.
2021-02-02 13:01:20 -06:00
Zdenek Kabelac
48dfc388f7 tests: increase required target version
Require 1.7.0 for raid0.
2021-02-01 20:10:07 +01:00
Zdenek Kabelac
6e8a32e4fd tests: avoid killing test machines with kernel bug
Bug 1916891  still applies:

https://bugzilla.redhat.com/show_bug.cgi?id=1916891
2021-02-01 15:02:38 +01:00
Zdenek Kabelac
bfafd2b4e9 tests: check for raid target support 2021-02-01 15:01:04 +01:00
Zdenek Kabelac
026d94d882 gcc: hide uninitialized warning with older gcc 2021-02-01 14:54:49 +01:00
Zdenek Kabelac
48030389ce libdm: add dm_tree_node_add_thin_pool_target_v1
Supports thin-pool without crop.
2021-02-01 14:52:32 +01:00
Zdenek Kabelac
25b942a8ac aux: update thin_restore_needs_more_volumes
Version 0.8.5-2.el7 needs to return 0;
2021-02-01 12:13:49 +01:00
Zdenek Kabelac
b26e565ee5 tests: check for cache support presence 2021-02-01 12:13:49 +01:00
Zdenek Kabelac
19ddad12ca tests: update thin and cache checked messages
Slightly changed messages for allocation of pool metadata.
2021-02-01 12:13:49 +01:00
Zdenek Kabelac
b17b556e26 tests: check 16G thin pool metadata size 2021-02-01 12:13:49 +01:00
Zdenek Kabelac
9fa4c099fb lvconvert: ensure device_name is defined 2021-02-01 12:13:49 +01:00
Zdenek Kabelac
a9fd207192 pvscan: enhance _count_pvid_files_from_lookup_file
Ensure all vars are always properly defined in all paths.
2021-02-01 12:13:49 +01:00
Zdenek Kabelac
3acf6040b5 wipe: reformat message for failure case
Use the same error message layout to match BLKZEROUT look.
Makes testing easier.
2021-02-01 12:13:49 +01:00
Zdenek Kabelac
8f5695fa71 WHATS_NEW: updates 2021-02-01 12:13:49 +01:00
Zdenek Kabelac
be0bf43d74 allocation: report allocation error instead of crash
Current allocation limitation requires to fit metadata/log LV on
a single PV. This is usually not a big problem, but since
thin-pool and cache-pool is using this for allocating extents
for their metadata LVs it might be eventually causing errors
where the remaining free spaces for large metadata size is spread
over several PV.
2021-02-01 12:13:49 +01:00
Zdenek Kabelac
45f0c48365 pvmove: automatically resolve whole stacked LV
When passing 'pvmove --name arg' try to automatically move
all associated dependencies with given LV.

i.e. 'pvmove --name thinpool vg vgnew'
moves all thins and data and metadata LV into a new VG vgnew.
2021-02-01 12:06:13 +01:00
Zdenek Kabelac
abc9265a06 cache: reuse code for metadata min_max
Use update_pool_metadata_min_max() which is shared with
thin-pool metadata min-max updating.

Gives improved messages when converting volumes to metadata.
2021-02-01 12:06:13 +01:00
Zdenek Kabelac
f96b455506 pool: limit pmspare to 16GiB
There is not much point to let allocate more then this size
even when i.e. converted LV is bigger then 16GiB (%extent_size)
ATM neither thin-pool nor cache-pool supports bigger metadata.
2021-02-01 12:06:13 +01:00
Zdenek Kabelac
b4212be2e7 thin: improve 16g support for thin pool metadata
Initial support for thin-pool used slightly smaller max size 15.81GiB
for thin-pool metadata. However the real limit later settled at 15.88GiB
(difference is ~64MiB - 16448 4K blocks).

lvm2 could not simply increase the size as it has been using hard cropping
of the loaded metadata device to avoid warnings printing warning of kernel
when the size was bigger (i.e. due to bigger extent_size).

This patch adds the new lvm.conf configurable setting:
allocation/thin_pool_crop_metadata
which defaults to 0 -> no crop of metadata beyond 15.81GiB.
Only user with these sizes of metadata will be affected.

Without cropping lvm2 now limits metadata allocation size to 15.88GiB.
Any space beyond is currently not used by thin-pool target.
Even if i.e. bigger LV is used for metadata via lvconvert,
or allocated bigger because of to large extent size.

With cropping enabled (=1) lvm2 preserves the old limitation
15.81GiB and should allow to work in the evironement with
older lvm2 tools (i.e. older distribution).

Thin-pool metadata with size bigger then 15.81G is now using CROP_METADATA
flag within lvm2 metadata, so older lvm2 recognizes an
incompatible thin-pool and cannot activate such pool!

Users should use uncropped version as it is not suffering
from various issues between thin_repair results and allocated
metadata LV as thin_repair limit is 15.88GiB
Users should use cropping only when really needed!

Patch also better handles resize of thin-pool metadata and prevents resize
beoyond usable size 15.88GiB. Resize beyond 15.81GiB automatically
switches pool to no-crop version. Even with existing bigger thin-pool
metadata command 'lvextend -l+1 vg/pool_tmeta' does the change.

Patch gives better controls 'coverted' metadata LV and
reports less confusing message during conversion.

Patch set also moves the code for updating min/max into pool_manip.c
for better sharing with cache_pool code.
2021-02-01 12:06:13 +01:00
Zdenek Kabelac
b218a7cfe7 man: update lvmthin
Add few more notes about thin-pool repair.
Fix couple typos.
2021-02-01 12:06:13 +01:00
David Teigland
a690d16d29 writecache: use cleaner message instead of table reload
When detaching writecache, make the first stage send a message
to dm-writecache to set the cleaner option.  This is instead of
reloading the dm table with the cleaner option set.  Reloading
the table causes udev to process/probe the dm dev, which gets
stalled because of the writeback activity, and the stalled udev
in turn stalls the lvconvert command when it tries to sync with
udev events.

When getting writecache status we do not need to get
open_count or read_head info, which can cause extra steps.
2021-01-28 15:14:25 -06:00