diff options
Diffstat (limited to 'lib/metadata/snapshot_manip.c')
| -rw-r--r-- | lib/metadata/snapshot_manip.c | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/lib/metadata/snapshot_manip.c b/lib/metadata/snapshot_manip.c index a9552039..7debcf7c 100644 --- a/lib/metadata/snapshot_manip.c +++ b/lib/metadata/snapshot_manip.c @@ -13,7 +13,7 @@ int lv_is_origin(struct logical_volume *lv) struct list *slh; struct snapshot *s; - list_iterate (slh, &lv->vg->snapshots) { + list_iterate(slh, &lv->vg->snapshots) { s = list_item(slh, struct snapshot_list)->snapshot; if (s->origin == lv) return 1; @@ -27,7 +27,7 @@ int lv_is_cow(struct logical_volume *lv) struct list *slh; struct snapshot *s; - list_iterate (slh, &lv->vg->snapshots) { + list_iterate(slh, &lv->vg->snapshots) { s = list_item(slh, struct snapshot_list)->snapshot; if (s->cow == lv) return 1; @@ -36,12 +36,26 @@ int lv_is_cow(struct logical_volume *lv) return 0; } +struct snapshot *find_origin(struct logical_volume *lv) +{ + struct list *slh; + struct snapshot *s; + + list_iterate(slh, &lv->vg->snapshots) { + s = list_item(slh, struct snapshot_list)->snapshot; + if (s->origin == lv) + return s; + } + + return NULL; +} + struct snapshot *find_cow(struct logical_volume *lv) { struct list *slh; struct snapshot *s; - list_iterate (slh, &lv->vg->snapshots) { + list_iterate(slh, &lv->vg->snapshots) { s = list_item(slh, struct snapshot_list)->snapshot; if (s->cow == lv) return s; @@ -52,8 +66,7 @@ struct snapshot *find_cow(struct logical_volume *lv) int vg_add_snapshot(struct logical_volume *origin, struct logical_volume *cow, - int persistent, - uint32_t chunk_size) + int persistent, uint32_t chunk_size) { struct snapshot *s; struct snapshot_list *sl; @@ -94,7 +107,7 @@ int vg_remove_snapshot(struct volume_group *vg, struct logical_volume *cow) struct list *slh; struct snapshot_list *sl; - list_iterate (slh, &vg->snapshots) { + list_iterate(slh, &vg->snapshots) { sl = list_item(slh, struct snapshot_list); if (sl->snapshot->cow == cow) { |