do_copy_file_range

Name:do_copy_file_range

Proto:static ssize_t do_copy_file_range(struct file *file_in, loff_t pos_in, struct file *file_out, loff_t pos_out, size_t len, unsigned int flags)

Type:ssize_t

Parameter:

Type	Parameter	Name
struct file *	file_in
loff_t	pos_in
struct file *	file_out
loff_t	pos_out
size_t	len
unsigned int	flags

1610

If copy_file_range && copy_file_range == copy_file_range Then Return copy_file_range(file_in, pos_in, file_out, pos_out, len, flags)

1616

Return generic_copy_file_range - copy data between two files*@file_in: file structure to read from*@pos_in: file offset to read from*@file_out: file structure to write data to*@pos_out: file offset to write data to*@len: amount of data to copy*@flags: copy flags

**Caller**
Name	Describe
vfs_copy_file_range	py_file_range() differs from regular file read and write in that it* specifically allows return partial success. When it does so is up to* the copy_file_range method.

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