diff options
Diffstat (limited to 'lib/metadata/lv.c')
| -rw-r--r-- | lib/metadata/lv.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/lib/metadata/lv.c b/lib/metadata/lv.c index c6357ce5b..d71e3aec7 100644 --- a/lib/metadata/lv.c +++ b/lib/metadata/lv.c @@ -701,6 +701,37 @@ char *lv_mirror_log_uuid_dup(struct dm_pool *mem, const struct logical_volume *l return _do_lv_mirror_log_dup(mem, lv, 1); } +struct logical_volume *lv_cachevol_lv(const struct logical_volume *lv) +{ + if (lv_is_writecache(lv)) + return first_seg(lv)->cachevol; + return NULL; +} + +static char *_do_lv_cachevol_dup(struct dm_pool *mem, const struct logical_volume *lv, + int uuid) +{ + struct logical_volume *cachevol_lv = lv_cachevol_lv(lv); + + if (!cachevol_lv) + return NULL; + + if (uuid) + return lv_uuid_dup(mem, cachevol_lv); + + return lv_name_dup(mem, cachevol_lv); +} + +char *lv_cachevol_dup(struct dm_pool *mem, const struct logical_volume *lv) +{ + return _do_lv_cachevol_dup(mem, lv, 0); +} + +char *lv_cachevol_uuid_dup(struct dm_pool *mem, const struct logical_volume *lv) +{ + return _do_lv_cachevol_dup(mem, lv, 1); +} + struct logical_volume *lv_pool_lv(const struct logical_volume *lv) { if (lv_is_thin_volume(lv) || lv_is_cache(lv)) |