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<a href='../S/4.html#L194'>NULL</a>              194 fs/bitmap.c        return NULL;
<a href='../S/4.html#L208'>NULL</a>              208 fs/bitmap.c          return NULL;
<a href='../S/6.html#L59'>NULL</a>               59 fs/buffer.c    static struct task_struct *buffer_wait = NULL;
<a href='../S/6.html#L224'>NULL</a>              224 fs/buffer.c      bh-&gt;b_prev = NULL;
<a href='../S/6.html#L225'>NULL</a>              225 fs/buffer.c      bh-&gt;b_next = NULL;
<a href='../S/6.html#L240'>NULL</a>              240 fs/buffer.c      for (tmp = hash (dev, block); tmp != NULL; tmp = tmp-&gt;b_next)
<a href='../S/6.html#L243'>NULL</a>              243 fs/buffer.c      return NULL;
<a href='../S/6.html#L269'>NULL</a>              269 fs/buffer.c    	return NULL;
<a href='../S/6.html#L415'>NULL</a>              415 fs/buffer.c      return NULL;
<a href='../S/6.html#L454'>NULL</a>              454 fs/buffer.c          bh[i] = NULL;
<a href='../S/6.html#L508'>NULL</a>              508 fs/buffer.c      return (NULL);
<a href='../S/6.html#L540'>NULL</a>              540 fs/buffer.c          h-&gt;b_wait = NULL;		// 指向等待该缓冲区解锁的进程。
<a href='../S/6.html#L541'>NULL</a>              541 fs/buffer.c          h-&gt;b_next = NULL;		// 指向具有相同hash 值的下一个缓冲头。
<a href='../S/6.html#L542'>NULL</a>              542 fs/buffer.c          h-&gt;b_prev = NULL;		// 指向具有相同hash 值的前一个缓冲头。
<a href='../S/6.html#L557'>NULL</a>              557 fs/buffer.c        hash_table[i] = NULL;
<a href='../S/8.html#L502'>NULL</a>              502 fs/exec.c          current-&gt;sigaction[i].sa_handler = NULL;
<a href='../S/8.html#L513'>NULL</a>              513 fs/exec.c          last_task_used_math = NULL;
<a href='../S/10.html#L42'>NULL</a>               42 fs/file_dev.c  	bh = NULL;
<a href='../S/12.html#L292'>NULL</a>              292 fs/inode.c           inode = NULL;
<a href='../S/12.html#L340'>NULL</a>              340 fs/inode.c         return NULL;
<a href='../S/12.html#L344'>NULL</a>              344 fs/inode.c           return NULL;		// 释放该i 节点,并返回NULL。
<a href='../S/12.html#L416'>NULL</a>              416 fs/inode.c         return (NULL);
<a href='../S/13.html#L24'>NULL</a>               24 fs/ioctl.c       NULL,				/* nodev */
<a href='../S/13.html#L25'>NULL</a>               25 fs/ioctl.c       NULL,				/* /dev/mem */
<a href='../S/13.html#L26'>NULL</a>               26 fs/ioctl.c       NULL,				/* /dev/fd */
<a href='../S/13.html#L27'>NULL</a>               27 fs/ioctl.c       NULL,				/* /dev/hd */
<a href='../S/13.html#L30'>NULL</a>               30 fs/ioctl.c       NULL,				/* /dev/lp */
<a href='../S/13.html#L31'>NULL</a>               31 fs/ioctl.c       NULL
<a href='../S/14.html#L153'>NULL</a>              153 fs/namei.c         return NULL;
<a href='../S/14.html#L161'>NULL</a>              161 fs/namei.c       *res_dir = NULL;
<a href='../S/14.html#L164'>NULL</a>              164 fs/namei.c         return NULL;
<a href='../S/14.html#L195'>NULL</a>              195 fs/namei.c         return NULL;
<a href='../S/14.html#L198'>NULL</a>              198 fs/namei.c         return NULL;
<a href='../S/14.html#L209'>NULL</a>              209 fs/namei.c     	  bh = NULL;
<a href='../S/14.html#L232'>NULL</a>              232 fs/namei.c       return NULL;
<a href='../S/14.html#L265'>NULL</a>              265 fs/namei.c       *res_dir = NULL;
<a href='../S/14.html#L269'>NULL</a>              269 fs/namei.c         return NULL;
<a href='../S/14.html#L277'>NULL</a>              277 fs/namei.c         return NULL;
<a href='../S/14.html#L280'>NULL</a>              280 fs/namei.c         return NULL;
<a href='../S/14.html#L283'>NULL</a>              283 fs/namei.c         return NULL;
<a href='../S/14.html#L295'>NULL</a>              295 fs/namei.c     	  bh = NULL;
<a href='../S/14.html#L298'>NULL</a>              298 fs/namei.c     	    return NULL;
<a href='../S/14.html#L337'>NULL</a>              337 fs/namei.c       return NULL;
<a href='../S/14.html#L382'>NULL</a>              382 fs/namei.c         return NULL;		/* empty name is bad *//* 空的路径名是错误的 */
<a href='../S/14.html#L392'>NULL</a>              392 fs/namei.c     	  return NULL;
<a href='../S/14.html#L408'>NULL</a>              408 fs/namei.c     	  return NULL;
<a href='../S/14.html#L417'>NULL</a>              417 fs/namei.c     	return NULL;
<a href='../S/14.html#L442'>NULL</a>              442 fs/namei.c         return NULL;
<a href='../S/14.html#L480'>NULL</a>              480 fs/namei.c         return NULL;
<a href='../S/14.html#L492'>NULL</a>              492 fs/namei.c           return NULL;
<a href='../S/15.html#L243'>NULL</a>              243 fs/open.c            current-&gt;filp[fd] = NULL;
<a href='../S/15.html#L266'>NULL</a>              266 fs/open.c      	  current-&gt;filp[fd] = NULL;
<a href='../S/15.html#L312'>NULL</a>              312 fs/open.c        current-&gt;filp[fd] = NULL;
<a href='../S/16.html#L137'>NULL</a>              137 fs/pipe.c          current-&gt;filp[fd[0]] = NULL;
<a href='../S/16.html#L148'>NULL</a>              148 fs/pipe.c            current-&gt;filp[fd[0]] = current-&gt;filp[fd[1]] = NULL;
<a href='../S/19.html#L82'>NULL</a>               82 fs/super.c         return NULL;
<a href='../S/19.html#L100'>NULL</a>              100 fs/super.c       return NULL;
<a href='../S/19.html#L154'>NULL</a>              154 fs/super.c         return NULL;
<a href='../S/19.html#L165'>NULL</a>              165 fs/super.c     	return NULL;
<a href='../S/19.html#L171'>NULL</a>              171 fs/super.c       s-&gt;s_isup = NULL;
<a href='../S/19.html#L172'>NULL</a>              172 fs/super.c       s-&gt;s_imount = NULL;
<a href='../S/19.html#L183'>NULL</a>              183 fs/super.c           return NULL;
<a href='../S/19.html#L195'>NULL</a>              195 fs/super.c           return NULL;
<a href='../S/19.html#L199'>NULL</a>              199 fs/super.c         s-&gt;s_imap[i] = NULL;
<a href='../S/19.html#L201'>NULL</a>              201 fs/super.c         s-&gt;s_zmap[i] = NULL;
<a href='../S/19.html#L226'>NULL</a>              226 fs/super.c           return NULL;
<a href='../S/19.html#L277'>NULL</a>              277 fs/super.c       sb-&gt;s_imount = NULL;
<a href='../S/19.html#L279'>NULL</a>              279 fs/super.c       sb-&gt;s_isup = NULL;
<a href='../S/19.html#L378'>NULL</a>              378 fs/super.c           p-&gt;s_wait = NULL;
<a href='../S/31.html#L67'>NULL</a>               67 include/linux/fs.h #ifndef NULL
<a href='../S/36.html#L26'>NULL</a>               26 include/linux/sched.h #ifndef NULL
<a href='../S/36.html#L196'>NULL</a>              196 include/linux/sched.h 							/* fs info */ -1, 0022, NULL, NULL, NULL, 0, \
<a href='../S/36.html#L200'>NULL</a>              200 include/linux/sched.h NULL,}
<a href='../S/42.html#L4'>NULL</a>                4 include/string.h #ifndef NULL
<a href='../S/42.html#L480'>NULL</a>              480 include/string.h     return NULL;
<a href='../S/45.html#L19'>NULL</a>               19 include/sys/types.h #ifndef NULL
<a href='../S/50.html#L24'>NULL</a>               24 include/unistd.h #ifndef NULL
<a href='../S/52.html#L220'>NULL</a>              220 init/main.c    "/bin/sh", NULL};		// 调用执行程序时参数的字符串数组。
<a href='../S/52.html#L223'>NULL</a>              223 init/main.c    "HOME=/", NULL};		// 调用执行程序时的环境字符串数组。
<a href='../S/52.html#L227'>NULL</a>              227 init/main.c    "-/bin/sh", NULL};		// 同上。
<a href='../S/52.html#L230'>NULL</a>              230 init/main.c    "HOME=/usr/root", NULL};
<a href='../S/54.html#L120'>NULL</a>              120 kernel/blk_drv/blk.h void (*DEVICE_INTR) (void) = NULL;
<a href='../S/55.html#L197'>NULL</a>              197 kernel/blk_drv/floppy.c struct task_struct *wait_on_floppy_select = NULL;
<a href='../S/57.html#L34'>NULL</a>               34 kernel/blk_drv/ll_rw_blk.c struct task_struct *wait_for_request = NULL;
<a href='../S/57.html#L46'>NULL</a>               46 kernel/blk_drv/ll_rw_blk.c   {NULL, NULL},			/* no_dev */// 0 - 无设备。
<a href='../S/57.html#L47'>NULL</a>               47 kernel/blk_drv/ll_rw_blk.c   {NULL, NULL},			/* dev mem */// 1 - 内存。
<a href='../S/57.html#L48'>NULL</a>               48 kernel/blk_drv/ll_rw_blk.c   {NULL, NULL},			/* dev fd */// 2 - 软驱设备。
<a href='../S/57.html#L49'>NULL</a>               49 kernel/blk_drv/ll_rw_blk.c   {NULL, NULL},			/* dev hd */// 3 - 硬盘设备。
<a href='../S/57.html#L50'>NULL</a>               50 kernel/blk_drv/ll_rw_blk.c   {NULL, NULL},			/* dev ttyx */// 4 - ttyx 设备。
<a href='../S/57.html#L51'>NULL</a>               51 kernel/blk_drv/ll_rw_blk.c   {NULL, NULL},			/* dev tty */// 5 - tty 设备。
<a href='../S/57.html#L52'>NULL</a>               52 kernel/blk_drv/ll_rw_blk.c   {NULL, NULL}			/* dev lp */// 6 - lp 打印机设备。
<a href='../S/57.html#L92'>NULL</a>               92 kernel/blk_drv/ll_rw_blk.c   req-&gt;next = NULL;
<a href='../S/57.html#L194'>NULL</a>              194 kernel/blk_drv/ll_rw_blk.c   req-&gt;waiting = NULL;		// 任务等待操作执行完成的地方。
<a href='../S/57.html#L196'>NULL</a>              196 kernel/blk_drv/ll_rw_blk.c   req-&gt;next = NULL;		// 指向下一请求项。
<a href='../S/57.html#L228'>NULL</a>              228 kernel/blk_drv/ll_rw_blk.c       request[i].next = NULL;
<a href='../S/67.html#L31'>NULL</a>               31 kernel/exit.c  	task[i] = NULL;		// 置空该任务项并释放相关内存页。
<a href='../S/67.html#L162'>NULL</a>              162 kernel/exit.c    current-&gt;pwd = NULL;
<a href='../S/67.html#L164'>NULL</a>              164 kernel/exit.c    current-&gt;root = NULL;
<a href='../S/67.html#L166'>NULL</a>              166 kernel/exit.c    current-&gt;executable = NULL;
<a href='../S/67.html#L172'>NULL</a>              172 kernel/exit.c      last_task_used_math = NULL;
<a href='../S/68.html#L150'>NULL</a>              150 kernel/fork.c        task[nr] = NULL;
<a href='../S/74.html#L79'>NULL</a>               79 kernel/sched.c struct task_struct *last_task_used_math = NULL;	// 使用过协处理器任务的指针。
<a href='../S/74.html#L265'>NULL</a>              265 kernel/sched.c   *p = NULL;
<a href='../S/74.html#L277'>NULL</a>              277 kernel/sched.c       *p = NULL;
<a href='../S/74.html#L290'>NULL</a>              290 kernel/sched.c static struct task_struct *wait_motor[4] = { NULL, NULL, NULL, NULL };
<a href='../S/74.html#L384'>NULL</a>              384 kernel/sched.c timer_list[TIME_REQUESTS], *next_timer = NULL;
<a href='../S/74.html#L464'>NULL</a>              464 kernel/sched.c 	  next_timer-&gt;fn = NULL;
<a href='../S/74.html#L561'>NULL</a>              561 kernel/sched.c       task[i] = NULL;
<a href='../S/75.html#L134'>NULL</a>              134 kernel/signal.c     sa-&gt;sa_handler = NULL;
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