295 ssize_t generic_file_splice_read(struct file *in, loff_t *ppos,  in generic_file_splice_read()  argument
305 	init_sync_kiocb(&kiocb, in);  in generic_file_splice_read()
307 	ret = call_read_iter(in, &kiocb, &to);  in generic_file_splice_read()
310 		file_accessed(in);  in generic_file_splice_read()
365 static ssize_t default_file_splice_read(struct file *in, loff_t *ppos,  in default_file_splice_read()  argument
414 	res = kernel_readv(in, vec, nr_pages, *ppos);  in default_file_splice_read()
854 static long do_splice_to(struct file *in, loff_t *ppos,  in do_splice_to()  argument
862 	if (unlikely(!(in->f_mode & FMODE_READ)))  in do_splice_to()
865 	ret = rw_verify_area(READ, in, ppos, len);  in do_splice_to()
872 	if (in->f_op->splice_read)  in do_splice_to()
873 		splice_read = in->f_op->splice_read;  in do_splice_to()
877 	return splice_read(in, ppos, pipe, len, flags);  in do_splice_to()
893 ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,  in splice_direct_to_actor()  argument
907 	i_mode = file_inode(in)->i_mode;  in splice_direct_to_actor()
955 		ret = do_splice_to(in, &pos, pipe, read_len, flags);  in splice_direct_to_actor()
994 	file_accessed(in);  in splice_direct_to_actor()
1041 long do_splice_direct(struct file *in, loff_t *ppos, struct file *out,  in do_splice_direct()  argument
1064 	ret = splice_direct_to_actor(in, &sd, direct_splice_actor);  in do_splice_direct()
1098 static long do_splice(struct file *in, loff_t __user *off_in,  in do_splice()  argument
1107 	ipipe = get_pipe_info(in);  in do_splice()
1114 		if (!(in->f_mode & FMODE_READ))  in do_splice()
1124 		if ((in->f_flags | out->f_flags) & O_NONBLOCK)  in do_splice()
1152 		if (in->f_flags & O_NONBLOCK)  in do_splice()
1171 			if (!(in->f_mode & FMODE_PREAD))  in do_splice()
1176 			offset = in->f_pos;  in do_splice()
1191 			ret = do_splice_to(in, &offset, opipe, len, flags);  in do_splice()
1197 			in->f_pos = offset;  in do_splice()
1417 	struct fd in, out;  in SYSCALL_DEFINE6()  local
1427 	in = fdget(fd_in);  in SYSCALL_DEFINE6()
1428 	if (in.file) {  in SYSCALL_DEFINE6()
1429 		if (in.file->f_mode & FMODE_READ) {  in SYSCALL_DEFINE6()
1433 					error = do_splice(in.file, off_in,  in SYSCALL_DEFINE6()
1439 		fdput(in);  in SYSCALL_DEFINE6()
1734 static long do_tee(struct file *in, struct file *out, size_t len,  in do_tee()  argument
1737 	struct pipe_inode_info *ipipe = get_pipe_info(in);  in do_tee()
1746 		if ((in->f_flags | out->f_flags) & O_NONBLOCK)  in do_tee()
1766 	struct fd in;  in SYSCALL_DEFINE4()  local
1776 	in = fdget(fdin);  in SYSCALL_DEFINE4()
1777 	if (in.file) {  in SYSCALL_DEFINE4()
1778 		if (in.file->f_mode & FMODE_READ) {  in SYSCALL_DEFINE4()
1782 					error = do_tee(in.file, out.file,  in SYSCALL_DEFINE4()
1787  		fdput(in);  in SYSCALL_DEFINE4()