rq_is_sync

函数名称：rq_is_sync

函数原型：static inline bool rq_is_sync(struct request *rq)

返回类型：bool

参数：

类型	参数	名称
struct request *	rq

**调用者**
名称	描述
blk_mq_free_request
bfq_choose_req	Lifted from AS - choose which of rq1 and rq2 that is best served now.* We choose the request that is closer to the head right now. Distance* behind the head is penalized and only allowed to a certain extent.
bfq_add_request
bfq_remove_request
bfq_allow_bio_merge
bfq_rq_enqueued	Called when a new fs request (rq) is added to bfqq. Check if there's* something we should do about it.
__bfq_insert_request	rns true if it causes the idle timer to be disabled
bfq_init_rq

函数逻辑报告