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We have to unset the LoadState variable from previous use when we check
for systemd unit state. We use this variable to check if systemd services
are loaded or not and if it is loaded, we issue systemctl commands to
enable/disable and start/stop the service. We don't issue these commands
if the unit is not loaded to avoid error messages which may confuse users.
The actual value specified by the --poll y|n option was not
being used. The way the --poll value is used is hidden
through an indirection where the value is stored in a
global variable at the start of the command, and then the
value is read from there later. Setting the global
variable early in the command had been lost with the
cmd def changes.
Fill in some gaps where old versions of lvm allowed
--poll and --monitor in combination with other operations,
but those combinations had been lost since the cmd def work.
(The new cmd def code also added some combinations that
had been missed by the old code.)
Changes:
lvchange --activate: add poll and monitor options, and
add calls to them in implementation.
lvchange --refresh: add monitor option (poll already there),
and call to monitor in implementation.
lvchange <metadata ops>: add poll and monitor options, and
add calls to them in implementation.
vgchange <metadata ops>: add poll option (call to poll
already in implementation).
vgchange --refresh: remove monitor option (not used by code)
lvchange --persistent y: add poll and monitor options, and
add calls to them, and to activate
in the implementation. (Making it
match the main lvchange metadata
command.)
Summary of current usage:
lvchange --activate: monitor, poll
vgchange --activate: monitor, poll
lvchange --refresh: monitor, poll
vgchange --refresh: poll
lvchange --monitor: ok
lvchange --poll: ok
lvchange --monitor --poll: ok
vgchange --monitor: ok
vgchange --poll: ok
vgchange --monitor --poll: ok
lvchange <metadata ops>: monitor, poll
vgchange <metadata ops>: poll
Enhance commit 25b5915c9b
to process options requiring immediate metadata commits
and reloads after those we can group together doing just
one commit and an optional reload for the whole group.
Backup metadata after processing options successfully.
Related: rhbz1437611
Don't abbreviate the --help output quite as much
when there are many command defs. Print all the
options in the cmd defs that are shown. --longhelp
output is unchanged and includes everything.
These days --partial is only used with activation in
lvchange/vgchange. It probably had another meaning
at some point in history which is no longer used,
so ignore it in those cases.
When included in the OO list, the option is advertised in
help/man output, implying it is meaningful to the command,
when in fact the command never uses it.
The IO list means the option won't cause an error if it's
used, but is not displayed as an valid option for the command.
If the option is not included in either OO or IO lists,
using the option would cause a command error, which would cause
problems for anyone is using the option for historical reasons.
_lvchange_properties_single() processes multiple command
line arguments in a loop causing metadata updates and/or
backups per argument.
Optimize to only perform one update and/or backup
(but necessary interim ones; e.g. for --resync)
per command run.
Related: rhbz1437611
Use only selected paths for finding .so in builddir.
So if builddir constains some embeded subdirs with some more
occurences of project (i.e. 'make rpm' build subdir)
those library paths will not get into list.
With monolithic kernels we can't actually modprobe
for cache modules as they are already compiled-in
and policy modules do not export version symbol.
Reported issue on list:
https://www.redhat.com/archives/dm-devel/2017-March/msg00061.html
Fix will try to look for explicit kernel symbols first before
calling modprobe.
Fix a regression introduced by new command line processing
(see starting commit 1e2420bca8)
causing activation to be rejected in combination with setting
persistent minor device numbers.
Resolves: rhbz1437611
Since _filemap_monitor_set_notify() is only called after daemon
start up it should not use the _early_log() macros. Instead, use
log_sys_error to log errors from the two syscalls in the function.
The fallback branch in _stats_update_file() is redundant (since the
branch taken when the daemon starts successfully must jump to the
'out' label anyway): remove it and re-order the conditions to
improve readability.
