函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\bfq-iosched.c Create Date:2022-07-27 19:30:58
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：bfq_request_merge

函数原型：static int bfq_request_merge(struct request_queue *q, struct request **req, struct bio *bio)

返回类型：int

参数：

类型参数名称
struct request_queue *q
struct request **req
struct bio *bio
2249  bfqd等于elevator_data
2252  __rq等于bfq_find_rq_fmerge(bfqd, bio, q)
2253  如果__rq且an we safely merge with this request?则
2254  req等于__rq
2255  返回:ELEVATOR_FRONT_MERGE
2258  返回:ELEVATOR_NO_MERGE