函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\read_write.c Create Date:2022-07-29 10:31:25
Last Modify:2020-03-18 10:18:51 Copyright©Brick
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函数名称：vfs_iter_read

函数原型：ssize_t vfs_iter_read(struct file *file, struct iov_iter *iter, loff_t *ppos, rwf_t flags)

返回类型：ssize_t

参数：

类型参数名称
struct file *file
struct iov_iter *iter
loff_t *ppos
rwf_tflags
945  如果非read_iter则返回:负EINVAL
947  返回:do_iter_read(file, iter, ppos, flags)