函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\iomap\direct-io.c Create Date:2022-07-29 11:07:41
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：iomap_dio_submit_bio

函数原型：static void iomap_dio_submit_bio(struct iomap_dio *dio, struct iomap *iomap, struct bio *bio)

返回类型：void

参数：

类型参数名称
struct iomap_dio *dio
struct iomap *iomap
struct bio *bio
64  atomic_inc( & ref)
66  如果ki_flags按位与IOCB_HIPRI则Mark a bio as polled. Note that for async polled IO, the caller must* expect -EWOULDBLOCK if we cannot allocate a request (or other resources).* We cannot block waiting for requests on polled IO, as those completions* must be found by the caller
69  last_queue等于bdev_get_queue( block device for I/O )
70  cookie等于submit_bio(bio)
调用者
名称描述
iomap_dio_zero
iomap_dio_bio_actor