bitmap: print correct percentage of bitmap in use.

We were adding 1, presumably to avoid div-by-zero possibilities.
It is better to only substitute '1' if the value actually is zero,
else for small numbers of bits the difference is visible.

Signed-off-by: NeilBrown <neilb@suse.de>

diff --git a/bitmap.c b/bitmap.c
index d02f16e64604cb74490e17fc6ad0a58fb5db57ef..103706bebf3be1ab278b6992f74b252ee808a71e 100644 (file)
--- a/bitmap.c
+++ b/bitmap.c
@@ -334,7 +334,7 @@ int ExamineBitmap(char *filename, int brief, struct supertype *st)
                goto free_info;
        printf("          Bitmap : %llu bits (chunks), %llu dirty (%2.1f%%)\n",
                        info->total_bits, info->dirty_bits,
-                       100.0 * info->dirty_bits / (info->total_bits + 1));
+                       100.0 * info->dirty_bits / (info->total_bits?:1));
 free_info:
        free(info);
        return rv;