r                  53 kernel/console.c   uint r; // Read index
r                  99 kernel/console.c     while (cons.r == cons.w) {
r                 104 kernel/console.c       sleep_prepare(&cons.r);
r                 110 kernel/console.c     c = cons.buf[cons.r++ % INPUT_BUF_SIZE];
r                 116 kernel/console.c         cons.r--;
r                 170 kernel/console.c     if (c != 0 && cons.e - cons.r < INPUT_BUF_SIZE) {
r                 179 kernel/console.c       if (c == '\n' || c == C('D') || cons.e - cons.r == INPUT_BUF_SIZE) {
r                 183 kernel/console.c         wakeup(&cons.r);
r                 109 kernel/file.c    int r = 0;
r                 115 kernel/file.c      r = piperead(f->pipe, addr, n);
r                 119 kernel/file.c      r = devsw[f->major].read(1, addr, n);
r                 122 kernel/file.c      if ((r = readi(f->ip, 1, addr, f->off, n)) > 0)
r                 123 kernel/file.c        f->off += r;
r                 129 kernel/file.c    return r;
r                 137 kernel/file.c    int r, ret = 0;
r                 162 kernel/file.c        if ((r = writei(f->ip, 1, addr + i, f->off, n1)) > 0)
r                 163 kernel/file.c          f->off += r;
r                 167 kernel/file.c        if (r != n1) {
r                 171 kernel/file.c        i += r;
r                  49 kernel/kalloc.c   struct run *r;
r                  57 kernel/kalloc.c   r = (struct run *)pa;
r                  60 kernel/kalloc.c   r->next = kmem.freelist;
r                  61 kernel/kalloc.c   kmem.freelist = r;
r                  71 kernel/kalloc.c   struct run *r;
r                  74 kernel/kalloc.c   r = kmem.freelist;
r                  75 kernel/kalloc.c   if (r)
r                  76 kernel/kalloc.c     kmem.freelist = r->next;
r                  79 kernel/kalloc.c   if (r)
r                  80 kernel/kalloc.c     memset((char *)r, 5, PGSIZE); // fill with junk
r                  81 kernel/kalloc.c   return (void *)r;
r                  49 kernel/sleeplock.c   int r;
r                  52 kernel/sleeplock.c   r = lk->locked && (lk->pid == myproc()->pid);
r                  54 kernel/sleeplock.c   return r;
r                  83 kernel/spinlock.c   int r;
r                  84 kernel/spinlock.c   r = (lk->locked && lk->cpu == mycpu());
r                  85 kernel/spinlock.c   return r;
r                  20 kernel/virtio_disk.c #define R(r) ((volatile uint32 *)(VIRTIO0 + (r)))
r                  14 user/ulib.c      int r;
r                  16 user/ulib.c      r = main(argc, argv);
r                  17 user/ulib.c      exit(r);
r                  91 user/ulib.c      int r;
r                  96 user/ulib.c      r = fstat(fd, st);
r                  98 user/ulib.c      return r;
r                2764 user/usertests.c   int r = fstat(fd, &st);
r                2765 user/usertests.c   if (r < 0) {