Revision 616eb002

b/xseg/sys/kernel/segdev.c
117 117 
		goto out_unlock;
118 118 

  		





  119
  119
  
    
	clear_bit(SEGDEV_READY, &dev->flags);


  		





  120
  
  
    
	XSEGLOG("Usercount: %d", atomic_read(&dev->usercount));


  		





  121
  120
  
    
	ret = wait_event_interruptible(dev->wq, atomic_read(&dev->usercount) <= 1);


  		





  122
  121
  
    
	if (ret)


  		





  123
  122
  
    
		goto out_unlock;


  		





  ......




  144
  143
  
    

  		





  145
  144
  
    
	dev = &segdev;


  		





  146
  145
  
    
	atomic_inc(&dev->usercount);


  		





  147
  
  
    
	XSEGLOG("Usercount: %d", atomic_read(&dev->usercount));


  		





  148
  146
  
    
	if (!test_bit(SEGDEV_READY, &dev->flags))


  		





  149
  147
  
    
		goto fail_busy;


  		





  150
  148
  
    
out:


  		





  ......




  161
  159
  
    
void segdev_put(struct segdev *dev)


  		





  162
  160
  
    
{


  		





  163
  161
  
    
	atomic_dec(&dev->usercount);


  		





  164
  
  
    
	XSEGLOG("Usercount: %d", atomic_read(&dev->usercount));


  		





  165
  162
  
    
	wake_up(&dev->wq);


  		





  166
  163
  
    
	/* ain't all this too heavy ? */


  		





  167
  164
  
    
}


  		












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