函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\bio.c Create Date:2022-07-27 18:31:15
Last Modify:2020-03-17 23:13:58 Copyright©Brick
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函数名称：_unmap_user - unmap a bio*@bio: the bio being unmapped* Unmap a bio previously mapped by bio_map_user_iov(). Must be called from* process context.* bio_unmap_user() may sleep.

函数原型：void bio_unmap_user(struct bio *bio)

返回类型：void

参数：

类型参数名称
struct bio *bio
1483  bio_release_pages(bio, Return the data direction, READ or WRITE.(bio) == generic data direction definitions )
1484  _put - release a reference to a bio*@bio: bio to release reference to* Description:* Put a reference to a &struct bio, either one you have gotten with* bio_alloc, bio_get or bio_clone_*. The last put of a bio will free it.
1485  _put - release a reference to a bio*@bio: bio to release reference to* Description:* Put a reference to a &struct bio, either one you have gotten with* bio_alloc, bio_get or bio_clone_*. The last put of a bio will free it.
调用者
名称描述
__blk_rq_unmap_user