thin: allow to convert chunksize of empty pool

When pool is not used, allow to change its chunksize.

diff --git a/tools/lvconvert.c b/tools/lvconvert.c
index f22c84ba891324ebcbefb03de6768b0aab1c74d2..f37a7a8329f391e96be9d02a652a26ba0d5b9213 100644 (file)
--- a/tools/lvconvert.c
+++ b/tools/lvconvert.c
@@ -2923,7 +2923,8 @@ static int _lvconvert_pool(struct cmd_context *cmd,
 
                /* Normally do NOT change chunk size when swapping */
                if (arg_count(cmd, chunksize_ARG) &&
-                   (lp->chunk_size != seg->chunk_size)) {
+                   (lp->chunk_size != seg->chunk_size) &&
+                   !dm_list_empty(&pool_lv->segs_using_this_lv)) {
                        if (lp->force == PROMPT) {
                                log_error("Chunk size can be only changed with --force. Conversion aborted.");
                                return 0;