函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\bio.h Create Date:2022-07-27 06:46:14
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Check whether this bio carries any data or not. A NULL bio is allowed.

函数原型：static inline bool bio_has_data(struct bio *bio)

返回类型：bool

参数：

类型参数名称
struct bio *bio
63  如果bio且 residual I/O count 且bio_op(bio)不等于REQ_OP_DISCARD且bio_op(bio)不等于REQ_OP_SECURE_ERASE且bio_op(bio)不等于REQ_OP_WRITE_ZEROES则返回:true
70  返回:false
调用者
名称描述
submit_biosubmit_bio - submit a bio to the block device layer for I/O*@bio: The &struct bio which describes the I/O* submit_bio() is very similar in purpose to generic_make_request(), and* uses that function to do most of the work. Both are fairly rough
bio_will_gap
blk_queue_bounce
bio_cur_bytes
bio_data