On 08/07/2017 05:30 PM, Eric Blake wrote:
It's been #if 0'd since its introduction in 2006, commit 585f8587.
We can revive dead code if we need it, but in the meantime, it has
bit-rotted (for example, not checking for failure in bdrv_getlength()).

Signed-off-by: Eric Blake <ebl...@redhat.com>

Reviewed-by: Philippe Mathieu-Daudé <f4...@amsat.org>

--- >   block/qcow2.c | 21 ---------------------
  1 file changed, 21 deletions(-)

diff --git a/block/qcow2.c b/block/qcow2.c
index d7c600b5a2..99407403ea 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -3798,27 +3798,6 @@ static ImageInfoSpecific 
*qcow2_get_specific_info(BlockDriverState *bs)
      return spec_info;
  }

-#if 0
-static void dump_refcounts(BlockDriverState *bs)
-{
-    BDRVQcow2State *s = bs->opaque;
-    int64_t nb_clusters, k, k1, size;
-    int refcount;
-
-    size = bdrv_getlength(bs->file->bs);
-    nb_clusters = size_to_clusters(s, size);
-    for(k = 0; k < nb_clusters;) {
-        k1 = k;
-        refcount = get_refcount(bs, k);
-        k++;
-        while (k < nb_clusters && get_refcount(bs, k) == refcount)
-            k++;
-        printf("%" PRId64 ": refcount=%d nb=%" PRId64 "\n", k, refcount,
-               k - k1);
-    }
-}
-#endif
-
  static int qcow2_save_vmstate(BlockDriverState *bs, QEMUIOVector *qiov,
                                int64_t pos)
  {


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