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Replace misleading "not found" in the log message when
devices/preferred_names is set to empty array:
Really not found:
device/dev-cache.c:689 devices/preferred_names not found in config: using built-in preferences
Found, but empty:
config/config.c:1431 Setting devices/preferred_names to preferred_names = [ ]
device/dev-cache.c:689 devices/preferred_names is empty: using built-in preferences
Commit 7e728fe1a1 added a log call
directly in find_config_tree_array when defaults are used.
This patch also adds the log for the value which is found in
existing configuration and for which defaults are not used.
For example:
Defaults used:
config/config.c:1428 devices/scan not found in config: defaulting to scan = [ "/dev" ]
Value defined in configuration used:
config/config.c:1431 Setting devices/scan to scan = [ "/dev", "/mydev", "/abc" ]
This makes the logging consistent with the other find_config_tree_* functions.
Policy name has to be always defined.
Capture it as an internal error before write.
When reading metadata without defined policy name, use default defined policy.
TODO: Unsure, but it might have to be actually always 'mq' in this case.
Keep policy name separate from policy settings and avoid
to mangling and demangling this string from same config tree.
Ensure policy_name is always defined.
Use find_config_tree_array for all config arrays. Also, add
INTERNAL_ERROR in case there should have been at least default
value defined for a setting but it was not returned for some
reason (either config_settings.h misconfiguration or other config
tree error printed by functions called by find_config_tree_array).
Both lock_start filters were being skipped when any lock-opt
values were used. The "auto" lock-opt should cause the
auto_lock_start_list to be used. The lock_start_list should
always be used.
The behavior of lock_start_list/auto_lock_start_list are tested
and verified to behave like volume_list/auto_activation_volume_list.
Since the default was changed to wait for lock-start to finish,
the "wait" and "autowait" lock-opt values are not needed, but a
new "autonowait" is added to the existing "nowait" avoid the
default waiting.
There are two different failure conditions detected in
access_vg_lock_type() that should have different error
messages. This adds another failure flag so the two
cases can be distinguished to avoid printing a misleading
error message.
Require global/{thin,cache}_{check,repair}_options to be always defined.
If not defined directly by user in the configuration and if there's no
concrete default option to use, make "" (empty string) the default one -
it's then clearly visible in the "lvmconfig --type default" (and
generated lvm.conf) and also it makes its handling in the code more
straightforward so we don't need to handle undefined values.
This means, if there are no default values for these settings defined,
we end up with this generated now:
{thin,cache}_{check,repair}_options = [ "" ]
So the value is never undefined and if it is, it's an error.
(The cache_repair_options is actually not used in the code at the moment,
but once the code using this setting is in, it will follow the same logic
as used for thin_repair_options.)
The "exported" state of the VG can be useful with lockd VGs
because the exported state keeps a VG from being used in general.
It's a way to keep a VG protected and out of the way.
Also fix the command flags: ALL_VGS_IS_DEFAULT is not true for
vgimport/vgexport, since they both return errors immediately if
no VG args are specified. LOCKD_VG_SH is not true for vgexport
beause it must use an ex lock to write the VG.
When --nolocking is used (by vgs, lvs, pvs):
. don't use lvmlockd at all (set use_lvmlockd to 0)
. allow lockd VGs to be read
When --readonly is used (by vgs, lvs, pvs, vgdisplay, lvdisplay,
pvdisplay, lvmdiskscan, lvscan, pvscan, vgcfgbackup):
. skip actual lvmlockd locking calls
. allow lockd VGs to be read
. check that only shared gl/vg locks are being requested
(even though the actually locking is being skipped)
. check that no LV locks are requested, because no LVs
should be activated or used in readonly mode
. disable using lvmetad so VGs are read from disk
It is important to note the limited commands that accept
the --nolocking and --readonly options, i.e. no commands
that change/write a VG or change/activate LVs accept these
options, only commands that read VGs.
A new lockd lock needs to be created for the new LV
created by split mirror and split snapshot. Disallow
these options in lockd VGs until that is implemented.
There are at least a couple instances where
the lock_args check does not work correctly,
(listed in the comment), so disable the
NULL check for lock_args until those are
resolved.
log_warn was added recently because no known code used
the given condition, but running pvcreate on an existing
PV uses this case, and should not produce a warning.
Put the change from commit #10d27998b3d2f6100e9e29e83d1d99948c55875f
back so we have working tree again for now. This code needs a bit of
a cleanup to return proper return value to check...
lib/format1/import-export.c:167: var_deref_op: Dereferencing null pointer "vg->lvm1_system_id"
lib/cache/lvmetad.c:1023: var_deref_op: Dereferencing null pointer "this"
daemons/lvmlockd/lvmlockd-core.c:2659: check_after_deref: Null-checking "act" suggests that it may be null, but it has already been dereferenced on all paths leading to the check
/daemons/lvmetad/lvmetad-core.c:1024: check_after_deref: Null-checking "pvmeta" suggests that it may be null, but it has already been dereferenced on all paths leading to the check
If running lvmconf ... --startstopservice --mirrorservice in systemd
environment, handle lvm2-cmirrord accordingly. A typo in the script
caused the lvm2-cmirrord to not start/stop immediately, it was
only enabled/disabled (so the --startstopservice was ignored in this
case).
This prevents 'lvremove vgname' from attempting to remove the
hidden sanlock LV. Only vgremove should remove the hidden
sanlock LV holding the sanlock locks.
tools/polldaemon.c:457: array_null: Comparing an array to null is not useful: "lv->lvid.s"
The lv->lvid.s is never NULL. The check was supposed to be *lv->lvid.s
to check if the string is not empty.
... Using uninitialized value "lockd_state" when calling "lockd_vg"
(even though lockd_vg assigns 0 to the lockd_state, but it looks at
previous state of lockd_state just before that so we need to have
that properly initialized!)
libdm/libdm-report.c:2934: uninit_use_in_call: Using uninitialized value "tm". Field "tm.tm_gmtoff" is uninitialized when calling "_get_final_time".
daemons/lvmlockd/lvmlockctl.c:273: uninit_use_in_call: Using uninitialized element of array "r_name" when calling "format_info_r_action". (just added FIXME as this looks unfinished?)
