188 static struct bf bfs[2];  variable
318   bfs[0].counter =  BF_ALLOC;     /* pass out the first buffer */  in rw_init()
320   bfs[1].counter = BF_FREE;  in rw_init()
322   return &bfs[0].buf.hdr;  in rw_init()
343   bfs[current].counter = BF_FREE; /* free old one */  in readit()
346   b = &bfs[current];              /* look at new buffer */  in readit()
367   b = &bfs[nextone];              /* look at "next" buffer */  in read_ahead()
421   bfs[current].counter = ct;      /* set size of data to write */  in writeit()
423   if(bfs[current].counter != BF_FREE)     /* if not free */  in writeit()
425   bfs[current].counter = BF_ALLOC;        /* mark as alloc'd */  in writeit()
426   *dpp =  &bfs[current].buf.hdr;  in writeit()
446   b = &bfs[nextone];  in write_behind()