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*参照元 [#d6847de9] #backlinks *説明 [#sb302583] -パス: [[linux-2.6.33/]] -パス: [[linux-2.6.33/kenel/wait.c]] -FIXME: これは何？ --説明 **引数 [#se5022f7] -wait_queue_head_t *q -- --[[linux-2.6.33/wait_queue_head_t]] -wait_queue_t *wait -- --[[linux-2.6.33/wait_queue_t]] **返り値 [#ee41c27f] -なし **参考 [#s31a327a] *実装 [#sf8f6723] /* * finish_wait - clean up after waiting in a queue * @q: waitqueue waited on * @wait: wait descriptor * * Sets current thread back to running state and removes * the wait descriptor from the given waitqueue if still * queued. */ void finish_wait(wait_queue_head_t *q, wait_queue_t *wait) { unsigned long flags; __set_current_state(TASK_RUNNING); - --[[linux-2.6.33/__set_current_state()]] /* * We can check for list emptiness outside the lock * IFF: * - we use the "careful" check that verifies both * the next and prev pointers, so that there cannot * be any half-pending updates in progress on other * CPU's that we haven't seen yet (and that might * still change the stack area. * and * - all other users take the lock (ie we can only * have _one_ other CPU that looks at or modifies * the list). */ if (!list_empty_careful(&wait->task_list)) { - --[[linux-2.6.33/list_empty_careful()]] spin_lock_irqsave(&q->lock, flags); list_del_init(&wait->task_list); spin_unlock_irqrestore(&q->lock, flags); - --[[linux-2.6.33/spin_lock_irqsave()]] --[[linux-2.6.33/list_del_init()]] --[[linux-2.6.33/spin_unlock_irqrestore()]] } } EXPORT_SYMBOL(finish_wait); -ライセンスに関係なくシンボルを公開する。 --[[linux-2.6.33/EXPORT_SYMBOL()]] *コメント [#t6e6d21b]
