cachevol: use cachepool code for metadata size

Based on a more detailed calculation, but because of
extent size rounding, the final result is about the
same.

diff --git a/lib/metadata/cache_manip.c b/lib/metadata/cache_manip.c
index c20cc49ba4cc16a2dc4d3fc49bf4522d08742b5e..2f35d835cdc89aac8faa327f9c73b6140b6a2da0 100644 (file)
--- a/lib/metadata/cache_manip.c
+++ b/lib/metadata/cache_manip.c
@@ -1092,32 +1092,8 @@ int cache_vol_set_params(struct cmd_context *cmd,
                }
        }
 
-       /*
-        * cachevol size 8M to 16M  -> metadata size 4M
-        *
-        * cachevol size 16M to 4G  -> metadata size 8M
-        *
-        * cachevol size 4G to 16G  -> metadata size 16M
-        *
-        * cachevol size 16G to 32G -> metadata size 32M
-        *
-        * cachevol size 32G and up -> metadata size 64M
-        */
        if (!meta_size) {
-               if (pool_lv->size <= (16 * ONE_MB_IN_SECTORS))
-                       meta_size = 4 * ONE_MB_IN_SECTORS;
-
-               else if (pool_lv->size <= (4 * ONE_GB_IN_SECTORS))
-                       meta_size = 8 * ONE_MB_IN_SECTORS;
-
-               else if (pool_lv->size <= (16 * ONE_GB_IN_SECTORS))
-                       meta_size = 16 * ONE_MB_IN_SECTORS;
-
-               else if (pool_lv->size <= (32 * ONE_GB_IN_SECTORS))
-                       meta_size = 32 * ONE_MB_IN_SECTORS;
-
-               else
-                       meta_size = 64 * ONE_MB_IN_SECTORS;
+               meta_size = _cache_min_metadata_size(pool_lv->size, chunk_size);
 
                if (meta_size < min_meta_size)
                        meta_size = min_meta_size;