函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\ioctl.c Create Date:2022-07-29 10:36:17
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：ioctl_file_clone_range

函数原型：static long ioctl_file_clone_range(struct file *file, struct file_clone_range __user *argp)

返回类型：long

参数：

类型参数名称
struct file *file
struct file_clone_range __user *argp
252  如果copy_from_user( & args, argp, args的长度)则返回:负EFAULT
254  返回:ioctl_file_clone(file, src_fd, src_offset, src_length, dest_offset)
调用者
名称描述
do_vfs_ioctlWhen you add any new common ioctls to the switches above and below* please update compat_sys_ioctl() too.* do_vfs_ioctl() is not for drivers and not intended to be EXPORT_SYMBOL()'d.* It's just a simple helper for sys_ioctl and compat_sys_ioctl.