stats slab's used_chunks should show chunks put to use

It was a bit unclear what it was doing before, but it started out with
a value equal to total_chunks, which was surely wrong.

This change and its accompanying test ensure the value makes a bit
more sense.

1 files changed, 1 insertions, 1 deletions

diff --git a/slabs.c b/slabs.c
index b28fc68..a071434 100644
--- a/slabs.c
+++ b/slabs.c
@@ -424,7 +424,7 @@ static char *do_slabs_stats(uint32_t (*add_stats)(char *buf, const char *key,
             bufcurr += nbytes;
 
             sprintf(key, "%d:used_chunks", i);
-            sprintf(val, "%u", ((slabs*perslab) - p->sl_curr));
+            sprintf(val, "%u", slabs*perslab - p->sl_curr - p->end_page_free);
             nbytes = add_stats(bufcurr, key, strlen(key), val, strlen(val), c);
             linelen += nbytes;
             bufcurr += nbytes;