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Going forward, we would like to allow users to specify the total
number of metadatacopies in a VG rather than on a per-PV basis. In
order to facilitate that, introduce --pvmetadatacopes to replace
--metadatacopies everywhere. We still allow --metadatacopies for
pv commands, but require --pvmetadatacopies for vg commands.
Eventually we will introduce --vgmetadatacopies. Once we do that,
we should either deprecate --metadatacopies or make it a synonym based
on the command (pvmetadatacopies for pv commands, and vgmetadatacopies
for vg commands). The latter option would likely just require a simple
'strncpy' check against cmd->command->name to qualify the merge_synonym
call.
Update nightly tests to cover the pvmetadatacopies synonym.
Note that this patch is the result of an eariler review comment for
the implicit pvcreate patches. Should apply cleanly on top of the
implicit pvcreate patches (I applied after patch 10/10 in that series).
NOTE: This patch will require --pvmetadatacopies for vgconvert as
--metadatacopies is no longer accepted.
Very simple / crude method of removing 'is_static' from initialization.
Why should we require an application tell us whether it is linked
statically or dynamically to libLVM? If the application is linked
statically, but libraries exist and dlopen() calls succeed, why
do we care if it's statically linked?
This allows us to remove one argument from create_toolcontext() and
moves it closer to a generic library init function.
In the arg_*() functions, we just use _the_args() directly.
For now we leave the first parameter to these
arg_*() functions (struct cmd_context *) because
of the number of files involved in removing the
parameter.
In preparation for removing cmd->args.
IMO, it makes more sense to put these accessor functions
in the same location as the static array _the_args.
Next patch will update arg_* functions to use _the_args[]
directly and remove cmd->args.
Move init_full_scan_done(0) and init_mirror_in_sync(0) from init_lvm()
after call to create_toolcontext() to _init_globals(), called from bottom
of create_toolcontext(). No functional change.
Author: Dave Wysochanski <dwysocha@redhat.com>
Acked-by: James Cameron <james.cameron@hp.com>
Acked-by: Alasdair G Kergon <agk@redhat.com>
init_formats() sets up the command formats, and currently sets cmd->fmt_backup
but does not set cmd->fmt to a default value. This seems incorrect so we
set it to cmd->default_settings.fmt before returning.
The call we remove here may set cmd->fmt based on a command line setting.
But it is safe to remove this, because the only caller of init_lvm() that
cares about the cmdline override is the cmdline tools (clvmd does not care),
called from lvm2_main(). After lvm2_main() calls init_lvm(), it later calls
lvm_run_command(). In lvm_run_command(), we have a call to _apply_settings(),
which has the identical assignment of cmd->fmt that this patch removes.
This is very obvious - _init_logging() makes the identical init_msg_prefix()
and init_cmd_name() calls with cmd->default_settings so these calls are
clearly redundant after calling create_toolcontext().
Very similar argument to removal of init_debug() and other calls.
create_toolcontext() calls _process_config() which sets
cmd->default_settings.activation, then calls
set_activation(cmd->default_settings.activation). Later, create_toolcontext()
sets cmd->current_settings = cmd->default_settings. So these calls
set_activation(cmd->current_settings.activation) are redundant.
Identical argument to previous patch which removed archive_enable() calls.
We add a new parameter to backup_init() which sets the enable value based
on the cmd->default_settings.backup value. This value was used to set
cmd->current_settings.backup, used in the removed backup_enable() call.
_init_backup() calls archive_init(), which originally set 'enabled' to
a hardcoded '1' value. This seems incorrect based on my read of other
areas of the code so here we add a 'enabled' paramter to archive_init().
We pass in cmd->default_settings.archive, which is obtained from the
config tree. Later in create_toolcontext, cmd->current_settings is
set to cmd->default_settings. The archive_enable() call we remove
here was using cmd->current_settings to set the 'archive' enable
value. The final value of cmd->archive_params->enabled should thus
be equivalent to the original code.
This one we actually need to move. _init_logging() is called from
create_toolcontext(), which makes this call:
/* Test mode */
cmd->default_settings.test =
find_config_tree_int(cmd, "global/test", 0);
But it does not call init_test(). So we need an init_test() somewhere.
The most logical place is to put it inside _init_logging(), since this
is where the config value is read and default_settings are set. Placing
the init_test() call here matches what is done with other variables and
seems to make sense.
This variable is set at the top of create_toolcontext() to 0.
Nothing later in create_toolcontext() changes the value.
In init_lvm(), nothing between create_toolcontext() call and this assignment
changes the value. Thus, the assignment is redundant.
The rationale for removing init_verbose() call is very similar to removing
init_debug() call. create_toolcontext() calls _init_logging() which
makes these calls:
/* Verbose level for tty output */
cmd->default_settings.verbose =
find_config_tree_int(cmd, "log/verbose", DEFAULT_VERBOSE);
init_verbose(cmd->default_settings.verbose + VERBOSE_BASE_LEVEL);
And being that create_toolcontext() copies default_settings into
current_settings at the bottom, the init_verbose() call we are removing:
init_verbose(cmd->current_settings.verbose + VERBOSE_BASE_LEVEL);
is redundant.
We can safely remove because create_toolcontext() calls _init_logging(),
which makes these calls:
/* Debug level for log file output */
cmd->default_settings.debug =
find_config_tree_int(cmd, "log/level", DEFAULT_LOGLEVEL);
init_debug(cmd->default_settings.debug);
Then at the bottom of create_toolcontext() we do this:
cmd->current_settings = cmd->default_settings;
So the call we are removing from init_lvm() functions (clvmd and lvmcmdline):
init_debug(cmd->current_settings.debug);
Just sets the value of debug based on 'cmd->current_settings.debug'.
Since cmd->current_settings is equivalent to cmd->default_settings, and
init_debug() was called with cmd->default_settings, the call we remove is
redundant.
