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lvconvert: vdo control for signature wiping

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When converting volumes to be used for thin-pool with VDO, allow
users to control wipesingature behaviour.
By default volumes should be checked against signature, and if
they are present, we promt user whether he wants to process with
conversion and lose i.e. filesystem present on such volume.

Users that want to bypass prompt in script can use either --yes
or they can disable wipe signature -Wn.
This commit is contained in:
Zdenek Kabelac 2024-05-10 00:25:39 +02:00
parent 298bd24e53
commit 04d9f13fa6
1 changed files with 10 additions and 2 deletions
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12
tools/lvconvert.c
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@ -123,6 +123,14 @@ static int _striped_type_requested(const char *type_str)
return (!strcmp(type_str, SEG_TYPE_NAME_STRIPED) || _linear_type_requested(type_str));
}
static int _get_wipe_signatures(struct cmd_context *cmd)
{
/* use option from cmdline and fallback to lvm.conf settings */
return arg_is_set(cmd, wipesignatures_ARG) ?
arg_int_value(cmd, wipesignatures_ARG, 0) :
find_config_tree_bool(cmd, allocation_wipe_signatures_when_zeroing_new_lvs_CFG, NULL);
}
static int _read_conversion_type(struct cmd_context *cmd,
struct lvconvert_params *lp)
{
@ -3104,7 +3112,7 @@ static int _lvconvert_to_pool(struct cmd_context *cmd,
struct vdo_convert_params vcp = {
.activate = CHANGE_AN,
.do_zero = 1,
.do_wipe_signatures = 1,
.do_wipe_signatures = _get_wipe_signatures(cmd),
.force = arg_count(cmd, force_ARG),
.yes = arg_count(cmd, yes_ARG),
};
@ -5523,7 +5531,7 @@ static int _lvconvert_to_vdopool_single(struct cmd_context *cmd,
arg_uint64_value(cmd, virtualsize_ARG, UINT64_C(0)),
vg->extent_size),
.do_zero = arg_int_value(cmd, zero_ARG, 1),
.do_wipe_signatures = 1,
.do_wipe_signatures = _get_wipe_signatures(cmd),
.yes = arg_count(cmd, yes_ARG),
.force = arg_count(cmd, force_ARG)
};