函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\blk-mq.h Create Date:2022-07-27 13:22:23
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：__blk_mq_get_ctx

函数原型：static inline struct blk_mq_ctx *__blk_mq_get_ctx(struct request_queue *q, unsigned int cpu)

返回类型：struct blk_mq_ctx

参数：

类型参数名称
struct request_queue *q
unsigned intcpu
134  返回:per_cpu_ptr( sw queues , cpu)
调用者
名称描述
blk_mq_alloc_request_hctx
blk_mq_hctx_notify_dead'cpu' is going away. splice any existing rq_list entries from this* software queue to the hw queue dispatch list, and ensure that it* gets run.
blk_mq_get_ctxThis assumes per-cpu software queueing queues. They could be per-node* as well, for instance. For now this is hardcoded as-is. Note that we don't* care about preemption, since we know the ctx's are persistent. This does