| Function report | 
| Source Code: kernel\futex.c | Create Date:2022-07-28 10:53:24 | 
| Last Modify:2020-03-17 15:28:32 | Copyright©Brick | 
| home page | Tree | 
| Annotation kernel can get tool activity | Download SCCT | Chinese | 
Name:Drop a reference to the resource addressed by a key.* The hash bucket spinlock must not be held. This is* a no-op for private futexes, see comment in the get* counterpart.
Proto:static void drop_futex_key_refs(union futex_key *key)
Type:void
Parameter:
| Type | Parameter | Name | 
|---|---|---|
| union futex_key * | key | 
| 455 | If Not ptr Then | 
| 457 | WARN_ON_ONCE(1) | 
| 458 | Return | 
| 461 | If Not IS_ENABLED(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'y' or 'm',* 0 otherwise.(CONFIG_MMU) Then Return | 
| 465 | Case & == We set bit 0 if key has a reference on inode | 
| 466 | put an inode | 
| 467 | Break | 
| 468 | Case & == We set bit 1 if key has a reference on mm | 
| Name | Describe | 
|---|---|
| put_futex_key | |
| futex_requeue | ex_requeue() - Requeue waiters from uaddr1 to uaddr2*@uaddr1: source futex user address*@flags: futex flags (FLAGS_SHARED, etc | 
| unqueue_me | queue_me() - Remove the futex_q from its futex_hash_bucket*@q: The futex_q to unqueue* The q->lock_ptr must not be held by the caller | 
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