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 10:31:33
Last Modify:2020-03-18 10:18:51 Copyright©Brick
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函数名称:vfs_clone_file_range

函数原型:loff_t vfs_clone_file_range(struct file *file_in, loff_t pos_in, struct file *file_out, loff_t pos_out, loff_t len, unsigned int remap_flags)

返回类型:loff_t

参数:

类型参数名称
struct file *file_in
loff_tpos_in
struct file *file_out
loff_tpos_out
loff_tlen
unsigned intremap_flags
2075  file_start_write(file_out)
2076  ret等于do_clone_file_range(file_in, pos_in, file_out, pos_out, len, remap_flags)
2078  file_end_write(file_out)
2080  返回:ret
调用者
名称描述
ioctl_file_clone