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Commit Graph

7532 Commits

Author SHA1 Message Date
Zdenek Kabelac
5da282fa23 device: propagate struct cmd_context
For better use of cached data located within cmd_context,
pass this structure from the top level function.
Also add missing '_' for static _dev_cache_index_devs.
No other change here.
2024-05-27 15:35:17 +02:00
Zdenek Kabelac
5c24d6d4db dev-type: use if..else if...
Compare strings till the first match.
2024-05-27 15:16:26 +02:00
Zdenek Kabelac
a198224666 dev-cache: skip scanning known blockless dirs
Skip scan and stat() for dirs and nodes within known /dev/ paths,
where no block devices are located.

Also strlen(_cache.dev_dir) just once.

TODO: add more dirs to _no_scan (configurable via lvm.conf ?)
2024-05-27 15:16:26 +02:00
Zdenek Kabelac
d8e639ecba dev-cache: collapsing slashes counts string size
_collapse_slashes() already goes through the whole string,
so just return now already known string length.
2024-05-27 15:16:26 +02:00
Zdenek Kabelac
caa0e08738 cleanup: use single array for idtype string
Share string array for de/coding idtype.
2024-05-27 15:16:26 +02:00
Zdenek Kabelac
2e0ac97903 error: try with modprobe
If the error target would be built as module,
ask modprobe to load it if the target is not present.
2024-05-27 15:16:26 +02:00
Zdenek Kabelac
9a371639fc cleanup: relocate section
Move _features[] structure from .data.rel.ro to .rodata.
2024-05-27 15:16:26 +02:00
David Teigland
47f8bda051 lvremove: remove device_id for PVs on LVs
When PVs are created on LVs, remove the devices file entries
for the PVs when the LVs are removed.  In general, the devices
file entries should be removed with lvmdevices --deldev when
the LVs are removed (lvremove is the equivalent of detaching
a device from the system when layering PVs on LVs.)
This change is effectively an automatic lvmdevices --deldev
command that is built into lvremove when the LV has a PV on it.
2024-05-22 15:32:17 -05:00
David Teigland
c609dedc2f Allow system.devices to be automatically created on first boot
An OS installer can create system.devices for the system and
disks, but an OS image cannot create the system-specific
system.devices.  The OS image can instead configure the
image so that lvm will create system.devices on first boot.

Image preparation steps to enable auto creation of system.devices:
- create empty file /etc/lvm/devices/auto-import-rootvg
- remove any existing /etc/lvm/devices/system.devices
- enable lvm-devices-import.path
- enable lvm-devices-import.service

On first boot of the prepared image:
- udev triggers vgchange -aay --autoactivation event <rootvg>
- vgchange activates LVs in the root VG
- vgchange finds the file /etc/lvm/devices/auto-import-rootvg,
  and no /etc/lvm/devices/system.devices, so it creates
  /run/lvm/lvm-devices-import
- lvm-devices-import.path is run when /run/lvm/lvm-devices-import
  appears, and triggers lvm-devices-import.service
- lvm-devices-import.service runs vgimportdevices --rootvg --auto
- vgimportdevices finds /etc/lvm/devices/auto-import-rootvg,
  and no system.devices, so it creates system.devices containing
  PVs in the root VG, and removes /etc/lvm/devices/auto-import-rootvg
  and /run/lvm/lvm-devices-import

Run directly, vgimportdevices --rootvg (without --auto), will create
a new system.devices for the root VG, or will add devices for the
root VG to an existing system.devices.
2024-05-21 16:29:12 -05:00
Zdenek Kabelac
e59c84ca3a gcc: clean cast with -Wbad-function-cast
Makes gcc happier.
2024-05-14 17:59:26 +02:00
Zdenek Kabelac
e3dff2cba2 gcc: same signess 2024-05-14 17:59:26 +02:00
Zdenek Kabelac
915267c900 activation: log_debug_activation
Correcting debug class.
2024-05-14 17:59:16 +02:00
Zdenek Kabelac
026344e8cc cleanup: local const arrays
No need for relocation entries for locally used arrays.
2024-05-13 12:58:37 +02:00
Zdenek Kabelac
ffdceeb982 cleanup: some missed public symbols static 2024-05-13 12:58:19 +02:00
Zdenek Kabelac
74e487f3a9 label: make scan_bcache local
Seems there are no users of scan_bcache, so make it local.
TODO: such variable should be ideally in cmd_context.
2024-05-13 02:21:37 +02:00
Zdenek Kabelac
8da0ab6fc1 cleanup: drop unused declared struct 2024-05-13 02:21:37 +02:00
Zdenek Kabelac
8168b5e71d clenaup: update local static with _ 2024-05-08 01:55:21 +02:00
Zdenek Kabelac
09f70dbb87 cov: avoid TOCTOU
Use just opendir() call and produce error message from errno state.
2024-05-08 01:55:21 +02:00
Zdenek Kabelac
5f1c799e6a cov: enum mapping cache format
Cleanly map cache metadata format enumeration.
2024-05-08 01:55:21 +02:00
Zdenek Kabelac
5818fbfbcf cov: enum matching type 2024-05-08 01:55:21 +02:00
Zdenek Kabelac
3e91823b3e cov: enum correct prototype
Cleanup enum usage.
2024-05-08 01:55:21 +02:00
Zdenek Kabelac
3f41b4af55 cov: check for overlow math
Add some extre protection to avoid integer overflow type of problems.
2024-05-08 01:55:21 +02:00
Zdenek Kabelac
5c7d6083a9 cov: annotate to silent some coverity warning 2024-05-08 01:55:21 +02:00
Zdenek Kabelac
bbf352892d cov: use literal for printf
Use literal for printf and just empty string if needed.
2024-05-08 01:55:21 +02:00
Zdenek Kabelac
d7c2fe9723 cov: use literal for printf format
Prepare suffix ahead and use literal for printf().
2024-05-08 01:55:21 +02:00
Zdenek Kabelac
9f4dc4170b cov: sanitize string for file path 2024-05-08 01:55:21 +02:00
Zdenek Kabelac
db40a2e33c cov: replace strcat with safe snprintf 2024-05-08 01:55:21 +02:00
Zdenek Kabelac
04b407674c cov: use sscanf buffer size limits
String parsing with buffer size limit.
2024-05-08 01:55:21 +02:00
Zdenek Kabelac
61a11f25a3 cov: check for valid raid0 LV segment
Add internal error to quiet Coverity fear of NULL pointer deref.
2024-05-08 01:55:21 +02:00
Zdenek Kabelac
099a4e2146 raid: easier prompt message
Use  printf capability of 'prompt()' funtions so use literal
when building this message.
2024-05-08 01:55:21 +02:00
Zdenek Kabelac
7f25e58f66 const: array for _vdo_split 2024-05-04 01:01:57 +02:00
Zdenek Kabelac
8bbd00162b const: log level string 2024-05-04 01:01:57 +02:00
Zdenek Kabelac
eae0314b55 const: suffixes list
dm_tree_set_optional_uuid_suffixes() is safe to use with overcasted
array to (const char**)
2024-05-04 01:01:57 +02:00
Zdenek Kabelac
0e5250c475 const: _reserved 2024-05-04 01:01:57 +02:00
Zdenek Kabelac
e6f46fafe7 const: use arrays of strings 2
Next set of changes.
2024-05-04 01:01:57 +02:00
Zdenek Kabelac
0bcf2c6514 const: use arrays of strings
Such string is stored directly in '.rodata' section.
2024-05-04 01:01:57 +02:00
Zdenek Kabelac
efe2005022 const: drop static keyword
We don't need relocatable space to store 'const' number.
2024-05-04 01:01:57 +02:00
Zdenek Kabelac
abf7c40185 const: static array
Such array can be stored  in   .rodata   section.
2024-05-04 01:01:57 +02:00
Zdenek Kabelac
acabc995c0 const: config items 2024-05-04 01:01:57 +02:00
Zdenek Kabelac
9f506eb89e const: raid takover arrays 2024-05-04 01:01:57 +02:00
Zdenek Kabelac
6430a6ca63 const: _fns poll_function 2024-05-04 01:01:57 +02:00
Zdenek Kabelac
ff699eab24 const: _ops text_vg_version 2024-05-04 01:01:57 +02:00
Zdenek Kabelac
41ffa8c74d const: _ops labeler _text_ops 2024-05-04 01:01:57 +02:00
Zdenek Kabelac
64cb8b5940 const: _ops segtype handler 2024-05-04 01:01:57 +02:00
Zdenek Kabelac
effafa8fc8 const: _ops text handler
Making sure these structures ends in '.data.rel.ro' section.
(instead of plain '.data' section).
2024-05-04 01:01:42 +02:00
Zdenek Kabelac
a6f4aed3c0 vdo: enhance error path
When the conversion to VDO fails, try to restore previous VG state
and also remove orphan DM node from table.
2024-05-04 00:57:14 +02:00
Zdenek Kabelac
6f8abdc978 cleanup: tab indent and typo 2024-05-02 11:58:26 +02:00
Zdenek Kabelac
db6bb6e90b cleanup: unlink passes with ENOENT 2024-05-01 10:55:17 +02:00
Zdenek Kabelac
061fa7b690 cleanup: remove unused code 2024-05-01 10:55:17 +02:00
Zdenek Kabelac
2a39ed7741 writecache: reuse some API
Tiny code updates, reuse dm_pool_strdup().
2024-05-01 10:55:17 +02:00
Zdenek Kabelac
b8d5c4b41a memory: compile with VALGRIND_POOL
Function to _allocate_memory() was not compiled-in when lvm2 was
build with support for better tracking memory pool with valgrind.
Instead now correctly avoid this function only when running
withing valgrind environment.
2024-05-01 10:54:54 +02:00
Zdenek Kabelac
d5da7604e5 memory: convert log_error
As the memory locking is not causing command's error - convert
error messages to warnings and debugs.
2024-05-01 10:54:54 +02:00
Zdenek Kabelac
7ec0f69cd1 toolcontext: introduce var for run in valgrind 2024-05-01 10:54:34 +02:00
Zdenek Kabelac
9162ae0a0a activation: interruptible sleep when talking to dmeventd 2024-05-01 10:54:34 +02:00
Zdenek Kabelac
d2f953c9db command: use const declaration for arrays 2024-04-29 00:13:43 +02:00
Zdenek Kabelac
ecabdf68cf lvconvert: use cmd_context variable
Do not modify flags field from 'strcut command_name' and
instead control this via cmd_context  get_vgname_from_options.

Flag GET_VGNAME_FROM_OPTIONS is currently used only by lvconvert.
2024-04-29 00:13:43 +02:00
Zdenek Kabelac
3fc34ac7ee vdo: fix setting VDO size when stacked
When VDO is used as data LV for thin-pool, we need
to use correct function to propagate this through
the stack of volumes.
2024-04-26 21:37:51 +02:00
David Teigland
21b683614c lvmcache: stop saving duplicate pvs info between scans
In the past it was common for a single command to run
multiple lvmcache_label_scan, and this code was a way
to make each call select the same duplicate pvs.  Now
commands run a single lvmcache_label_scan, so this is
not needed.
2024-04-26 14:13:46 -05:00
Zdenek Kabelac
c6a37ddca4 toolcontext: check runtime valgrind
When reseting stream buffer - check for being run within valgrind
and only in this case skip this code.
Define VALGRIND_POOL was incorrectly used for this logic.
2024-04-25 21:26:01 +02:00
Zdenek Kabelac
ecb8399005 lvm: use configure proc dir in lvm.conf
Update some code parts to use configurer /proc from lvm.conf
(so i.e. our testing can use some fake values)
2024-04-15 13:38:44 +02:00
Zdenek Kabelac
84b084c9b6 configure.ac: define DEFAULT_PROC_DIR in one place
Let's move proc into include/configure.h so this define can
be easily used across the source base.

Configure defines it - but ATM we do not provide any configure
option to change it - there should be no need to ever change it.
2024-04-15 13:38:44 +02:00
David Teigland
f59ec61fa7 lvmcache: fix memleaks on list removal
Free members released from the list.
2024-04-15 12:58:27 +02:00
Zdenek Kabelac
8d1a946a9b tests: update unit-tests
Fix some memleaks.
Drop call of bcache_clear_fd() when bache was not initialized.
2024-04-10 00:04:54 +02:00
Zdenek Kabelac
c5b4574729 cov: use stream ptr in its original form
Let's stop Coverity thinking here we are using freed FILE*
for anything else then comparing numbers.
For this use the original source of old_stream pointer.
2024-04-10 00:03:09 +02:00
Zdenek Kabelac
2a8c195360 cov: use dm_strncpy variant 2024-04-10 00:03:09 +02:00
Zdenek Kabelac
3ce83f923d cov: extra pointer validation
Add few more internal errors to enusure there is no use of NULL pointers
along the code path.
2024-04-10 00:03:09 +02:00
Zdenek Kabelac
8545621d39 cov: replace strcpy with memcpy
When we know the size we can avoid using strcpy.
2024-04-10 00:03:09 +02:00
Zdenek Kabelac
cd9b2b32aa configure: add --with-default-event-activaion=ON
Add new configurable option for building lvm2 with enable/disable
default autoactivation setting.

Might be useful for building i.e. rpms for systems where
this event_activation is not desired.
2024-04-09 17:47:03 +02:00
Zdenek Kabelac
d490572410 gcc: clear some complains
Use dm_strncpy() were possible to get rid of gcc compile warnings.
2024-04-08 14:52:23 +02:00
Zdenek Kabelac
d6df31fba1 pools: no checking for lv/vgremove deactivation
Thin-pool and cache-pool targets got already quite stable so let's try
to remove checking of pools when using lvremove or vgremove commands.

This skips checking pools when they are going to be removed, but it
also when removing thin volume that was the only user of a thin-pool.
In this case thin-pool will be still there and could be activated
again with another thin volume and thin_check will be executed
in this moment. In this case it can delay discovery of metadata damage.
2024-04-07 20:44:28 +02:00
Zdenek Kabelac
2fdf3b137a thin-pool: avoid reactivation on new thin-pool
Shortens processing of 'lvcreate -L -V -T' command and
avoid deactivation and its activation with thin_check of the empty
created thin-pool that will be used for the new thin volume
made with a single lvcreate command.
2024-04-07 20:38:55 +02:00
Zdenek Kabelac
dbc0105e1a vdo: modprobe dm-vdo for kernels >= 6.9
Modprobe "dm-vdo" with new kernels >= 6.9 and go for
'kvdo' with older Linux kernels.
2024-04-07 20:27:39 +02:00
Zdenek Kabelac
dda859027c vdo: use stats msg parser for also segment status
Shuffle code to parsing VDO message also for lvs segment status
so it can report correctly data usage for VDO LVs.

For this change move code and also change its API to use just mempool.

Fixes usage with upstream 6.9 vdo target driver.
2024-04-05 14:14:50 +02:00
Zdenek Kabelac
203c8b3997 vdo: fix status message parsing
When using message API for parsing VDO stats info, 0 was wrongly
used for fallback for trying the old sysfs API.

Switch to use  ULLONG_MAX for values that could not have been obtained
through the message call.

Fixes lvdisplay info for freshly created VDO volume with 0 used data
blocks.
2024-04-05 13:09:10 +02:00
Zdenek Kabelac
50b188eebd dev_manager: improve readability
Make a seperate function to decode which ID should be user
for cvol meta or data volume - also avoids duplication of code.
As a result it's now also easier to see how the lvid is build.
2024-04-04 19:38:21 +02:00
Zdenek Kabelac
41f13b2a3b device_id: add comment for trim 2024-04-04 19:38:21 +02:00
Zdenek Kabelac
f9fefaaabe refactor: update dm_strncpy to _dm_strncpy
For checked versions of dm_strncpy use inline wrapper _dm_strncpy.
2024-04-04 19:38:21 +02:00
Zdenek Kabelac
995ff58903 refactor: remove (void) from dm_strncpy usage
Start to use dm_strncpy() as unchecked version within source tree.
2024-04-04 19:38:21 +02:00
Zdenek Kabelac
295e632e81 util: add _dm_strncpy
Add internal inline function wrapper for dm_strncpy().
Use it for calls where we test the result.
Avoids emitting warnings in Coverity for unchecked usage.
2024-04-04 19:37:13 +02:00
David Teigland
c78970c0d0 lvmcache: free list of add_cache_devs 2024-04-03 15:59:25 -05:00
Zdenek Kabelac
fb80ed3143 cleanup: remove lvmcache_has_bad_metadata 2024-03-30 00:17:39 +01:00
Zdenek Kabelac
adfa16c899 cleanup: drop unused code 2024-03-30 00:17:39 +01:00
Zdenek Kabelac
d39b47d665 filtes: remove lvmetad bits from usable filter
Eliminate some dead code from usable filter, that is no longer usable
after removal of lvmetad.
2024-03-30 00:17:39 +01:00
Zdenek Kabelac
46ef562c50 device_id: simplier loop control 2024-03-30 00:17:39 +01:00
Zdenek Kabelac
d65a428f2d device_id: use dm_strncpy
Simplify code.
2024-03-30 00:17:39 +01:00
Zdenek Kabelac
b8d5744c6e deviced_id: use zalloc
While moving to dm_strncpy, in this case since pvid is also
passed to crc calc, make sure whole buffer is always initilized.
2024-03-30 00:17:39 +01:00
Zdenek Kabelac
4151df32c1 filter: zero internal structure
Valgrind noticed access to unitialized warned_filter.
2024-03-30 00:17:39 +01:00
Zdenek Kabelac
960df88621 cov: validate i before underflow
Although it can't happen in this code, ensure 'i' is not 0
before decrementing it.
2024-03-29 01:34:22 +01:00
Zdenek Kabelac
7ec7d8cf54 cov: reset FILE on error path
Although fclose() fails - we should not be retrying with
already released stucture.
2024-03-28 21:15:38 +01:00
Zdenek Kabelac
fc477192e5 cleanup: drop unused code
Code was related to long time obsoleted  vgconvert
for lvm1 to lvm2 conversion.
This code likely was missed to be removed.
2024-03-28 18:18:37 +01:00
Zdenek Kabelac
83b726e5dd gcc: move declaration into ifdef
Prevent unused warning when the ifdef code is not compiled.
2024-03-27 01:11:00 +01:00
Zdenek Kabelac
0dbd90d74e gcc: match signed integers 2024-03-27 01:11:00 +01:00
Zdenek Kabelac
f98d2ffe87 device_id: use dm_basename
Avoid problems for other libc like muslc and use dm_basename.

Prototype for basename has been removed from string.h from latest musl [1]
compilers e.g. clang-18 flags the absense of prototype as error. therefore
include libgen.h for providing it.

[1] https://git.musl-libc.org/cgit/musl/commit/?id=725e17ed6dff4d0cd22487bb64470881e86a92e7

Reported-by: Khem Raj <raj.khem@gmail.com>
2024-03-27 00:30:58 +01:00
Zdenek Kabelac
421afd287a cov: ensure namelist is defined
Seems coverity doesn't have good model for scandir.
Let's ensure pointer is seen as defined.
2024-03-25 17:16:00 +01:00
Zdenek Kabelac
ac90ab7736 cov: drop some unneeded continue 2024-03-25 16:54:11 +01:00
Zdenek Kabelac
ae7b59f509 cov: check for syscall resuls 2024-03-25 16:38:52 +01:00
Zdenek Kabelac
b84702349f cov: ensure buffer is nul ended
Use dm_strncpy() to ensure ending nul.
2024-03-25 16:37:04 +01:00
Zdenek Kabelac
46e013988f cov: check for strftime result 2024-03-25 14:45:09 +01:00
Zdenek Kabelac
3b47ce0a37 devices_id: add some syscall checks
Add debug tracing for syscall failures.
Also switch some log_error to log_warn when command does not exit
with 'error' result and only warns user.
Easier error path handling.
Initialize some vars at declaration time.
2024-03-25 14:43:33 +01:00
Zdenek Kabelac
1ba2d40473 gcc: ensure num has always initilized value 2024-03-25 11:44:36 +01:00
Zdenek Kabelac
bca6f58848 cov: ensure string ends with \0
Use dm_strncpy() that ensures \0 termination.
2024-03-25 11:18:29 +01:00
Zdenek Kabelac
835e8f9d7a cov: fix incorrect error check
Check for NULL pointer.
Fix missing release on error path.
Also dir_fd might be just != -1.
2024-03-25 11:18:29 +01:00
Zdenek Kabelac
ab3c690077 dev-cache: change locales just once 2024-03-25 11:05:05 +01:00
Zdenek Kabelac
b47b66ebff dev_manager: pending traces only existing LV
Before adding LV to the dtree, check whether it's already
in dtree.
2024-03-21 22:35:47 +01:00
Zdenek Kabelac
622884d67a dev_manager: open_count not needed
We do not need to check for open_count in these _info calls.
2024-03-21 22:35:47 +01:00
Zdenek Kabelac
363e8888ae dev_manager: implement _cached_dm_tree_node 2024-03-21 22:35:47 +01:00
Zdenek Kabelac
a985d5c63d dev_manager: fix table for cache with cachevol
When using cached LV with cachevols (so not with cachepool),
the loaded table could have been using more then one mapping line
for sub devices - resulting into data corruption in some cases
when i.e. taking snapshot of such cached LV with and instead of
single line - 2 lines were generated into DM table as the code
skipped protection again repeated addition.

vg-fast_cvol-cdata: 0 16384 linear 253:2 16384
vg-fast_cvol-cdata: 16384 16384 linear 253:2 16384

New code is also refactoring to use _add_new_cvol_subdev_to_dtree
(similar _add_cvol_subdev.. ) and also the addition of subdev has
been moved after check for already processed node.
Also the cachevol sub devices are now added with the insertion
of cachevol with cached LV.
2024-03-21 22:35:47 +01:00
Zdenek Kabelac
ad582da3ca dev_manager: relocate code
Use better place to search for cvol subdev mappings.
Add them with cachevol that is used for cache LV.
2024-03-21 22:35:47 +01:00
Zdenek Kabelac
abc1b44d8d dev_manager: refactor
Use struct initilizer to setup lvid.
2024-03-21 22:35:47 +01:00
Zdenek Kabelac
9718fd2496 debug: print names of tracked LVs
Debug was printing passed in LV name, but it's more usable to see
names of LVs 'tracked' for removal.
2024-03-21 22:35:47 +01:00
Zdenek Kabelac
8c7400121e debug: trace when ignoring origin_only suspend
Add log debug message when origin_only suspend would be ignored.
2024-03-17 13:17:53 +01:00
Zdenek Kabelac
457bd1392a thin: support chaining of external origins
Improve support for building DM tree when there is a chain
of external origins used for LV.

For this we cannot use track_external_lv_deps as this works
only for LV with just one external origin in its device tree.

Instead add directly 'dev' to the instead of add whole LV.
This avoid possibly recurive endless loop, however we may eventally
have some problems with undiscovered/missing devices in DM tree.
2024-03-17 13:17:53 +01:00
Zdenek Kabelac
a0776fe409 thin: remove stack external origins
Ensure external origin is deactivated during removal.
Only unused external origins can be deactivated.
2024-03-17 13:17:53 +01:00
Zdenek Kabelac
386f0bfb4f thin: lock fs when converting to external origin
Ensure suspend is locking fs, when converting LV to external origin.
2024-03-17 13:16:35 +01:00
Zdenek Kabelac
edc91caffb thin: external origins across thin-pool
Fix/support creation and usage of the external origin
across thin-pools - so thin LV can use thin LV from
some other thin-pool as external origin (read-only).
2024-03-16 10:40:54 +01:00
Zdenek Kabelac
27bdd038a8 thin: validate usable volume for external origin
When creating external origin via 'lvcreate --type thin'
add the validation for LV being usable as external origin
since certain LVs cannot be really used this way.
Also call this function early during lvcreate cmdline arg
validation se we do not need to do unecesary operation.
2024-03-16 10:40:54 +01:00
Zdenek Kabelac
9e2870cc9f activation: reduce table preloading
Over the time the code for preloading detached LVs got unnecessarily
complicate. But actually we need to preload only LVs that
were previously non-toplevel (invisible) LVs and became visible
toplevel LVs in the precommitted metadata.

If there would be needed some other rule, it would likely be a bug in
conversion code forgetting to set visibility flag on detached LV.

This reduces number of unnecessary repeated DM tree preloading.
2024-03-16 10:34:31 +01:00
Zdenek Kabelac
9d145c17c3 snapshots: avoid monitoring of inactive origins
External origins for thin volumes can be also used at the same time
as old(thick) snapshot origins. However in this case it's possible
the LV is only active as being 'external' origin, but old snapshot LVs
are not active. For this case before handling these
LVs for un/monitoring check the active state of origin LV.

This should prevent warnings of monitoring failures.
2024-03-16 10:23:55 +01:00
David Teigland
d1aacae0f7 lvm.conf: update scan_lvs description
to better reflect the devices file existence, and
to mention layered autoactivation in lvm udev rules.
2024-02-21 11:08:02 -06:00
Zdenek Kabelac
66be32fbc1 cleanup: remove unused code 2024-02-19 14:20:39 +01:00
Zdenek Kabelac
4f936f2312 devices: refactor recursive dir create
Make recursive directory path creation reusable via
dir_create_recursive.

While we already have dm_create_dir() - it's not taking mode arg,
so let's make lvm's internal file helper function.
2024-02-19 14:20:39 +01:00
Zdenek Kabelac
c534cf3bca label: simplify code 2024-02-19 14:20:39 +01:00
Zdenek Kabelac
d486b379d0 bcache: remove duplicate _wait_all call
Since the  bcache_flush() is supposed to already use _wait_all()
remove duplicated invoce of this function.
2024-02-19 14:20:39 +01:00
Zdenek Kabelac
d19235993e cache: check module in modules builtin
Instead of parsing the whole /proc/kallsyms use faster variant
of using modprobe tool logic.

lvm2 here wants to know whether the particular DM cache policy is
present in the kernel - however since the cache policy does not have
any kernel module parameters and it can be built-in to a kernel
there is no /sys/modules directory in such case and we would need to call
modprobe everytime we want detect such case.

The old solution tried to look for particular kernel symbol
(and like not the right way, as smq_exit might be actually ommitted).

New version checks MODULES_PATH/`uname -r`/modules.builtin for
whether is present cache policy module instead of CPU expensive parsing
of kallsyms.
2024-02-19 14:20:39 +01:00
Zdenek Kabelac
55937f9c8e vdo: read VDO stats via dm message
As the sysfs interface is seen somewhat obsolete, swith code
to prefer using DM 'stats' message to get our currently needed
info for VDO pool target.
2024-02-19 14:20:39 +01:00
David Teigland
4f9215e70f devices file: rename unused system.devices
If lvm.conf has use_devicesfile=0 and /etc/lvm/device/system.devices
exists, then rename it to system.devices-unused.YYYYMMDD.HHMMSS.
This prevents an old, incorrect system.devices from being used in
the future if lvm.conf is changed to use_devicesfile=1.
2024-02-15 11:40:37 -06:00
David Teigland
e59027e4f7 devices file: back up each version
Create backup copies of system.devices in /etc/lvm/devices/backup
named system.devices-YYYYMMDD.HHMMSS.NNNN.  NNNN is the version
counter from the file.

Each time that an lvm command writes a new system.devices file,
it also writes the same file in the backup directory.

A new comment line is added to system.devices with HASH=<num>
where <num> is a crc calculated from the uncommented lines in
system.devices.  This lets lvm detect if the file has been
modified outside of lvm itself.

If system.devices is edited directly, the next time a command
reads the file, the crc will not match the HASH value.  The
command will then rewrite system.devices with the correct HASH
value, and create a backup reflecting the edits.

A default limit of 50 backup files is kept, configurable by
lvm.conf devicesfile_backup_limit (set to 0 to disable backups.)
2024-02-15 11:40:37 -06:00
Andre Klärner
fe822f7043 system_id: explain the reason for choosing appmachineid over machineid
Since understanding the reason for choosing the appmachineid over the
direct use of machineid is not easily found, I extended to help text to
clarify this a bit.
2024-02-05 14:01:22 -06:00
Ranjith ML
1c3ae2b678 archiving: Fix doubled filename in vgcfgrestore 2024-01-24 14:11:19 +01:00
Zdenek Kabelac
5533f034e2 thin_pool: correct refactoring chunk_size
Function to recalc chunk_size according to dev hints needs to be
used after chunk_size is being set to thin pool segment - correct
this ordering mistake introduced in previous refactoring commit.
2024-01-17 17:31:19 +01:00
Zdenek Kabelac
9d9e43b87f vdo: correct vdo header size
Previous patch that introduced support for thinpool with vdo
not correctly handled header size - as this part is not fully usable
yet.  We are going to try to use the 0, but current state of code is not
yet compliant to this logic so keep vdo_header_size during conversion
and alos correctly pass through virtual_extents to vdo formating.
2024-01-17 17:30:10 +01:00
Zdenek Kabelac
db0de73d6e vdo: support creation of compressed thin-pools
Add code to handle creation of  thin-pool with VDO data backend
which can be seen as compressed deduplicated thin-pool.

To avoid need of changing to many internal APIs, pass the conversion
parameters for create thin-pool data volume via cmd_context.
2024-01-10 14:02:22 +01:00
Zdenek Kabelac
6ec2f1f44b vdo: refactor conversion to vdo lv
Introduce struct vdo_convert_params {} to pass-in all the parameters
needed for the conversion of an LV to a vdopool + vdo LV.

Function convert_vdo_lv() is also able to create a new LV and swap
segments, so the passed in LV can be later on use for futher
conversion so this refactoring makes it ready for more enhanced
usage.
2024-01-10 14:02:22 +01:00
Zdenek Kabelac
7544b9fc10 vdo: refactor vdo_params passing
Introduce vdo_convert_params and use vdo_params from this structure
also with lvcreate_params.

Later we will use this for convertion of thin-pool data volume to VDO.
2024-01-10 14:02:22 +01:00
Zdenek Kabelac
4ccedceaa8 thin_pool: introduce --pooldatavdo
Introducing new arg --pooldatavdo y|n
2024-01-10 14:02:22 +01:00
Zdenek Kabelac
c496f80379 pool: code refactoring
Move pool related manipulation code to pool_manip.c.
2024-01-10 14:02:22 +01:00
Zdenek Kabelac
a176184b7d thin_pool: code refactoring
Move common code into thin_pool_set_params()
(just like we use  cache_set_params).
2024-01-10 14:02:22 +01:00
Zdenek Kabelac
18d3283157 cov: some stack tracing corrections
Checking some returned values and adding/correcting
some debug tracing.
2024-01-10 14:02:22 +01:00
Zdenek Kabelac
2135bbe558 vdo: flip return value to int
Change API to return just 0/1.
2024-01-10 14:02:22 +01:00
Zdenek Kabelac
73967233e4 dev_manager: reuse _setup_task_run 2024-01-10 14:02:22 +01:00
Zdenek Kabelac
b058498404 lv: remove unused declaration 2024-01-10 14:02:22 +01:00
Zdenek Kabelac
b1e8af1c0c activate: use lv_layer
Avoid code duplication.
2024-01-10 14:02:22 +01:00
David Teigland
921ceddebf lvmconfig: uncomment the report section
so settings can be changed without uncommenting the
start/end of the section.
2023-11-17 13:52:49 -06:00
David Teigland
0e4fd4485f lvs: set first attr flag for raid integrity images
The first lv_attr flag is 'i' or 'I' for a raid image.
(i: raid image, I: out of sync raid image)
For integrity raid images (_iorig), the flag was not being set.
2023-11-17 13:26:23 -06:00
David Teigland
622284740a pvs, pvscan: new option -A to show PVs outside the devices file
pvs -A|--allpvs
	Show PVs that would otherwise be excluded by the devices file.

pvscan -A|--allpvs
	Show PVs that would otherwise be excluded by the devices file.
	For those devices that are included by the devices file,
	their device ID is displayed in place of the usual "lvm2"
	format and size.

(pvs -a|--all is unchanged, and shows devices not formatted as PVs.)
2023-11-16 08:45:46 -06:00
David Teigland
db03270135 device: remove log_debug for nvme device 2023-11-09 13:31:01 -06:00
David Teigland
e71b663bf5 device_id: remove unused dev pointer from dev_id struct 2023-11-09 13:15:02 -06:00
David Teigland
631b8edefb device_id: ensure pvid buffers are ID_LEN+1
A pvid string read from system.devices could be less
then ID_LEN since system.devices fields can be edited.
Ensure the pvid buffer is ID_LEN+1 even if the string
read from the file is shorter.
2023-11-09 13:15:02 -06:00
David Teigland
de2b11f39a device_id: improve searched_devnames temp file
Include info in the temp file to confirm that it should be used.
The temp file is meant to suppress repeated, identical searches
for the same PVIDs on the same set of devices.  Write to the file
a count and hash of the missing PVIDs and a count and hash of the
devices to search.  A subsequent command will ignore and remove
the temp file if any of these values differ.  We don't want to
suppress a search if a change has occured, and a missing PV could
be found by scanning devices.
2023-11-09 13:14:55 -06:00
David Teigland
2b7c832847 lvmdevices: print changes for product_uuid or hostname
used by the recently added refresh feature
2023-11-07 14:30:48 -06:00