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cleanup: simplier formula

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This commit is contained in:
Zdenek Kabelac 2016-01-08 11:07:47 +01:00
parent ebcfd09ba9
commit 4310dfd4e1
1 changed files with 7 additions and 14 deletions
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21
lib/metadata/lv_manip.c
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@ -4950,21 +4950,14 @@ static int _lvresize_adjust_extents(struct cmd_context *cmd, struct logical_volu
log_print_unless_silent("Ignoring stripes, stripesize and mirrors "
"arguments when reducing.");
if (lp->sign == SIGN_MINUS)
if (lp->extents_are_pes) {
if (lp->extents >= existing_physical_extents) {
log_error("Unable to reduce %s below 1 extent.", lp->lv_name);
return 0;
}
new_extents = existing_physical_extents - lp->extents;
} else {
new_extents = existing_logical_extents - lp->extents;
if (lp->extents >= existing_logical_extents) {
log_error("Unable to reduce %s below 1 extent.", lp->lv_name);
return 0;
}
if (lp->sign == SIGN_MINUS) {
new_extents = lp->extents_are_pes ? existing_physical_extents : existing_logical_extents;
if (lp->extents >= new_extents) {
log_error("Unable to reduce %s below 1 extent.", lp->lv_name);
return 0;
}
else
new_extents -= lp->extents;
} else
new_extents = lp->extents;
dm_list_iterate_items(seg, &lv->segments) {