rst              4016 oshmem/mca/memheap/ptmalloc/malloc.c     tchunkptr rst = 0;  /* The deepest untaken right subtree */
rst              4028 oshmem/mca/memheap/ptmalloc/malloc.c         rst = rt;
rst              4030 oshmem/mca/memheap/ptmalloc/malloc.c         t = rst; /* set t to least subtree holding sizes > nb */