函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\blk-cgroup.c Create Date:2022-07-27 19:16:23
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：__blkcg_punt_bio_submit

函数原型：bool __blkcg_punt_bio_submit(struct bio *bio)

返回类型：bool

参数：

类型参数名称
struct bio *bio
1490  blkg等于* Represents the association of the css and request_queue for the bio. * If a bio goes direct to device, it will not have a blkg as it will * not have a request_queue associated with it. The reference is put * on release of the bio.
1493  bottom bits req flags, * top bits REQ_OP. Use * accessors.与等于REQ_CGROUP_PUNT的反
1496  如果非 all non-root blkcg_gq's are guaranteed to have access to parent 则返回:false
1499  spin_lock_bh( & async_bio_lock)
1500  bio_list_add( & async_bios, bio)
1501  spin_unlock_bh( & async_bio_lock)
1503  queue_work - queue work on a workqueue*@wq: workqueue to use*@work: work to queue* Returns %false if @work was already on a queue, %true otherwise.* We queue the work to the CPU on which it was submitted, but if the CPU dies
1504  返回:true
调用者
名称描述
blkcg_punt_bio_submit