函数逻辑报告

函数名称：lock_getrq - get a free request entry in queue for block IO operations*@q: queue for operations*@bio: pending block IO operation (can be %NULL)*@rw: low bit indicates a read (%0) or a write (%1)* A request struct for queue @q has been allocated to handle

函数原型：static inline void trace_block_getrq(struct request_queue *q, struct bio *bio, int rw)

返回类型：void

参数：