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 19:34:34
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：bfq_strict_guarantees_store

函数原型：static ssize_t bfq_strict_guarantees_store(struct elevator_queue *e, const char *page, size_t count)

返回类型：ssize_t

参数：

类型参数名称
struct elevator_queue *e
const char *page
size_tcount
6723  bfqd等于elevator_data
6727  ret等于bfq_var_store( & __data, (page))
6728  如果ret则返回:ret
6731  如果__data大于1则__data等于1
6733  如果非* Force device idling whenever needed to provide accurate * service guarantees, without caring about throughput * issues. CAVEAT: this may even increase latencies, in case * of useless idling for processes that did stop doing I/O.且__data恒等于1且 maximum idling time 小于8乘NSEC_PER_MSEC则 maximum idling time 等于8乘NSEC_PER_MSEC
6737  * Force device idling whenever needed to provide accurate * service guarantees, without caring about throughput * issues. CAVEAT: this may even increase latencies, in case * of useless idling for processes that did stop doing I/O.等于__data
6739  返回:count