Hi NeilBrown,

[auto build test ERROR on v4.5-rc5]
[also build test ERROR on next-20160226]
[if your patch is applied to the wrong git tree, please drop us a note to help 
improving the system]

url:    
https://github.com/0day-ci/linux/commits/NeilBrown/RFC-improvements-to-radix-tree-related-to-DAX/20160228-132214
config: i386-tinyconfig (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   lib/radix-tree.c: In function 'radix_tree_lookup_lock':
>> lib/radix-tree.c:1616:5: error: 'TASK_UNINTERRUPTIBLE' undeclared (first use 
>> in this function)
        TASK_UNINTERRUPTIBLE);
        ^
   lib/radix-tree.c:1616:5: note: each undeclared identifier is reported only 
once for each function it appears in
>> lib/radix-tree.c:1621:3: error: implicit declaration of function 'schedule' 
>> [-Werror=implicit-function-declaration]
      schedule();
      ^
   lib/radix-tree.c: In function 'radix_tree_unlock':
>> lib/radix-tree.c:1644:17: error: 'TASK_NORMAL' undeclared (first use in this 
>> function)
      __wake_up(wq, TASK_NORMAL, 1, &key);
                    ^
   lib/radix-tree.c: In function 'radix_tree_delete_unlock':
   lib/radix-tree.c:1657:17: error: 'TASK_NORMAL' undeclared (first use in this 
function)
      __wake_up(wq, TASK_NORMAL, 1, &key);
                    ^
   cc1: some warnings being treated as errors

vim +/TASK_UNINTERRUPTIBLE +1616 lib/radix-tree.c

  1610          wait.state = SLOT_WAITING;
  1611          wait.root = root;
  1612          wait.index = index;
  1613          wait.ret = NULL;
  1614          for (;;) {
  1615                  prepare_to_wait(wq, &wait.wait,
> 1616                                  TASK_UNINTERRUPTIBLE);
  1617                  if (wait.state != SLOT_WAITING)
  1618                          break;
  1619  
  1620                  spin_unlock(lock);
> 1621                  schedule();
  1622                  spin_lock(lock);
  1623          }
  1624          finish_wait(wq, &wait.wait);
  1625          return wait.ret;
  1626  }
  1627  EXPORT_SYMBOL(radix_tree_lookup_lock);
  1628  
  1629  void radix_tree_unlock(struct radix_tree_root *root, wait_queue_head_t 
*wq,
  1630                          unsigned long index)
  1631  {
  1632          void *ret, **slot;
  1633  
  1634          ret = __radix_tree_lookup(root, index, NULL, &slot);
  1635          if (WARN_ON_ONCE(!ret || !radix_tree_exceptional_entry(ret)))
  1636                  return;
  1637          if (WARN_ON_ONCE(!slot_locked(slot)))
  1638                  return;
  1639          unlock_slot(slot);
  1640  
  1641          if (waitqueue_active(wq)) {
  1642                  struct wait_bit_key key = {.flags = root, .bit_nr = -2,
  1643                                             .timeout = index};
> 1644                  __wake_up(wq, TASK_NORMAL, 1, &key);
  1645          }
  1646  }
  1647  EXPORT_SYMBOL(radix_tree_unlock);

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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