lv: add common lv_data_lv fn for use in report and dup, use brackets for invisible...

The common lv_data_lv fn avoids code duplication and also
the reporting part now uses _lvname_disp and _uuid_disp to display
name and uuid respectively, including brackets for the name if the
dev is invisible.

diff --git a/lib/metadata/lv.c b/lib/metadata/lv.c
index ab8a7c4180582ab6476b7039e45d2a7c2499def1..e8b5adaf3c32a64c22b0407cf9fe0c54b1fd6c3b 100644 (file)
--- a/lib/metadata/lv.c
+++ b/lib/metadata/lv.c
@@ -398,20 +398,27 @@ char *lv_pool_lv_uuid_dup(struct dm_pool *mem, const struct logical_volume *lv)
        return _do_lv_pool_lv_dup(mem, lv, 1);
 }
 
+struct logical_volume *lv_data_lv(const struct logical_volume *lv)
+{
+       struct lv_segment *seg = (lv_is_thin_pool(lv) || lv_is_cache_pool(lv)) ?
+                                 first_seg(lv) : NULL;
+       struct logical_volume *data_lv = seg ? seg_lv(seg, 0) : NULL;
+
+       return data_lv;
+}
+
 static char *_do_lv_data_lv_dup(struct dm_pool *mem, const struct logical_volume *lv,
                                int uuid)
 {
-       struct lv_segment *seg = (lv_is_thin_pool(lv) || lv_is_cache_pool(lv)) ?
-               first_seg(lv) : NULL;
+       struct logical_volume *data_lv = lv_data_lv(lv);
 
-       if (seg) {
-               if (uuid)
-                       return lv_uuid_dup(mem, seg_lv(seg, 0));
-               else
-                       return lv_name_dup(mem, seg_lv(seg, 0));
-       }
+       if (!data_lv)
+               return NULL;
 
-       return NULL;
+       if (uuid)
+               return lv_uuid_dup(mem, data_lv);
+       else
+               return lv_name_dup(mem, data_lv);
 }
 
 char *lv_data_lv_dup(struct dm_pool *mem, const struct logical_volume *lv)

diff --git a/lib/metadata/lv.h b/lib/metadata/lv.h
index b37cc4e7d114c65b9c9fce40c153293b766b752b..44f7fda50037beda6ce4c5f7896970a38cd7f7f8 100644 (file)
--- a/lib/metadata/lv.h
+++ b/lib/metadata/lv.h
@@ -89,6 +89,7 @@ struct logical_volume *lv_parent(const struct logical_volume *lv);
 struct logical_volume *lv_convert_lv(const struct logical_volume *lv);
 struct logical_volume *lv_origin_lv(const struct logical_volume *lv);
 struct logical_volume *lv_mirror_log_lv(const struct logical_volume *lv);
+struct logical_volume *lv_data_lv(const struct logical_volume *lv);
 char *lv_parent_dup(struct dm_pool *mem, const struct logical_volume *lv);
 char *lv_origin_dup(struct dm_pool *mem, const struct logical_volume *lv);
 char *lv_origin_uuid_dup(struct dm_pool *mem, const struct logical_volume *lv);

diff --git a/lib/report/report.c b/lib/report/report.c
index 80896b3b4b320310788a8aaa67b05cc53ba2bee2..467cf85a349f8d12b8e48842c741947fe0829f23 100644 (file)
--- a/lib/report/report.c
+++ b/lib/report/report.c
@@ -1670,16 +1670,15 @@ static int _do_datalv_disp(struct dm_report *rh, struct dm_pool *mem __attribute
                           int uuid)
 {
        const struct logical_volume *lv = (const struct logical_volume *) data;
-       const struct lv_segment *seg = (lv_is_pool(lv)) ? first_seg(lv) : NULL;
+       struct logical_volume *data_lv = lv_data_lv(lv);
 
-       if (seg) {
-               if (uuid)
-                       return _uuid_disp(rh, mem, field, &seg_lv(seg, 0)->lvid.id[1], private);
-               else
-                       return _lvname_disp(rh, mem, field, seg_lv(seg, 0), private);
-       }
+       if (!data_lv)
+               return _field_set_value(field, "", NULL);
 
-       return _field_set_value(field, "", NULL);
+       if (uuid)
+               return _uuid_disp(rh, mem, field, &data_lv->lvid.id[1], private);
+       else
+               return _lvname_disp(rh, mem, field, data_lv, private);
 }
 
 static int _datalv_disp(struct dm_report *rh, struct dm_pool *mem __attribute__((unused)),