函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\io_uring.c Create Date:2022-07-29 10:54:40
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:io_req_map_rw

函数原型:static void io_req_map_rw(struct io_kiocb *req, ssize_t io_size, struct iovec *iovec, struct iovec *fast_iov, struct iov_iter *iter)

返回类型:void

参数:

类型参数名称
struct io_kiocb *req
ssize_tio_size
struct iovec *iovec
struct iovec *fast_iov
struct iov_iter *iter
1764  nr_segs等于nr_segs
1765  size等于io_size
1766  iov等于iovec
1767  如果非iov
1768  iov等于fast_iov
1769  memcpy(iov, fast_iov, iovec的长度 * nr_segs)
调用者
名称描述
io_setup_async_rw
io_read_prep
io_write_prep