dm cache: add passthrough mode

[deliverable/linux.git] / drivers / md / dm-cache-metadata.c

diff --git a/drivers/md/dm-cache-metadata.c b/drivers/md/dm-cache-metadata.c
index 062b83ed3e846aa15bf357069e33e841624b50d0..8601425436cdd2a695f10160bc9d581315aa49ea 100644 (file)
--- a/drivers/md/dm-cache-metadata.c
+++ b/drivers/md/dm-cache-metadata.c
@@ -1249,3 +1249,8 @@ int dm_cache_save_hint(struct dm_cache_metadata *cmd, dm_cblock_t cblock,
 
        return r;
 }
+
+int dm_cache_metadata_all_clean(struct dm_cache_metadata *cmd, bool *result)
+{
+       return blocks_are_unmapped_or_clean(cmd, 0, cmd->cache_blocks, result);
+}