Add pvseg_is_allocated() for identifying a PV segment allocated to a LV.

WHATS_NEW

@@ -1,5 +1,6 @@
 Version 2.02.34 -
 ===================================
+  Add pvseg_is_allocated() for identifying a PV segment allocated to a LV.
   Add list_move() for moving elements from one list to another.
   Add 'is_reserved_lvname()' for identifying hidden LVs.
   Correct command name in lvmdiskscan man page.

lib/display/display.c

@@ -270,7 +270,7 @@ void pvdisplay_segments(const struct physical_volume *pv)
 		log_print("Physical extent %u to %u:",
 			  pvseg->pe, pvseg->pe + pvseg->len - 1);
 
-		if (pvseg->lvseg) {
+		if (pvseg_is_allocated(pvseg)) {
 			log_print("  Logical volume\t%s%s/%s",
 				  pvseg->lvseg->lv->vg->cmd->dev_dir,
 				  pvseg->lvseg->lv->vg->name,

lib/metadata/metadata-exported.h

@@ -151,6 +151,8 @@ struct pv_segment {
 	uint32_t lv_area;	/* Index to area in LV segment */
 };
 
+#define pvseg_is_allocated(pvseg) ((pvseg)->lvseg)
+
 struct physical_volume {
 	struct id id;
 	struct device *dev;

lib/metadata/metadata.c

@@ -612,7 +612,7 @@ int vg_change_pesize(struct cmd_context *cmd __attribute((unused)),
 
 		/* foreach free PV Segment */
 		list_iterate_items(pvseg, &pv->segments) {
-			if (pvseg->lvseg)
+			if (pvseg_is_allocated(pvseg))
 				continue;
 
 			if (!_recalc_extents(&pvseg->pe, pv_dev_name(pv),

lib/metadata/pv_manip.c

@@ -233,7 +233,7 @@ uint32_t pv_list_extents_free(const struct list *pvh)
 	list_iterate_items(pvl, pvh) {
 		list_iterate_items(per, pvl->pe_ranges) {
 			list_iterate_items(pvseg, &pvl->pv->segments) {
-				if (!pvseg->lvseg) /* free space */
+				if (!pvseg_is_allocated(pvseg))
 					extents += _overlap_pe(pvseg, per);
 			}
 		}