ext4: mballoc: print bb_free info even when it is 0

Improve the debugging msg by also printing even if bb_free is 0.
Signed-off-by: Ritesh Harjani <riteshh@linux.ibm.com>
Link: https://lore.kernel.org/r/c894f1d1d30f86ae38f4e3a861949665b6dc61cd.1589086800.git.riteshh@linux.ibm.comSigned-off-by: Theodore Ts'o <tytso@mit.edu>

fs/ext4/mballoc.c

@@ -4170,8 +4170,6 @@ static void ext4_mb_show_ac(struct ext4_allocation_context *ac)
 		}
 		ext4_unlock_group(sb, i);
 
-		if (grp->bb_free == 0)
-			continue;
 		printk(KERN_ERR "%u: %d/%d \n",
 		       i, grp->bb_free, grp->bb_fragments);
 	}