307 __generic_file_splice_read(struct file *in, loff_t *ppos,  in __generic_file_splice_read()  argument
311 	struct address_space *mapping = in->f_mapping;  in __generic_file_splice_read()
347 		page_cache_sync_readahead(mapping, &in->f_ra, in,  in __generic_file_splice_read()
404 			page_cache_async_readahead(mapping, &in->f_ra, in,  in __generic_file_splice_read()
442 			error = mapping->a_ops->readpage(in, page);  in __generic_file_splice_read()
500 	in->f_ra.prev_pos = (loff_t)index << PAGE_CACHE_SHIFT;  in __generic_file_splice_read()
523 ssize_t generic_file_splice_read(struct file *in, loff_t *ppos,  in generic_file_splice_read()  argument
530 	if (IS_DAX(in->f_mapping->host))  in generic_file_splice_read()
531 		return default_file_splice_read(in, ppos, pipe, len, flags);  in generic_file_splice_read()
533 	isize = i_size_read(in->f_mapping->host);  in generic_file_splice_read()
541 	ret = __generic_file_splice_read(in, ppos, pipe, len, flags);  in generic_file_splice_read()
544 		file_accessed(in);  in generic_file_splice_read()
607 ssize_t default_file_splice_read(struct file *in, loff_t *ppos,  in default_file_splice_read()  argument
661 	res = kernel_readv(in, vec, spd.nr_pages, *ppos);  in default_file_splice_read()
1133 static long do_splice_to(struct file *in, loff_t *ppos,  in do_splice_to()  argument
1141 	if (unlikely(!(in->f_mode & FMODE_READ)))  in do_splice_to()
1144 	ret = rw_verify_area(READ, in, ppos, len);  in do_splice_to()
1148 	if (in->f_op->splice_read)  in do_splice_to()
1149 		splice_read = in->f_op->splice_read;  in do_splice_to()
1153 	return splice_read(in, ppos, pipe, len, flags);  in do_splice_to()
1169 ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,  in splice_direct_to_actor()  argument
1183 	i_mode = file_inode(in)->i_mode;  in splice_direct_to_actor()
1225 		ret = do_splice_to(in, &pos, pipe, len, flags);  in splice_direct_to_actor()
1264 	file_accessed(in);  in splice_direct_to_actor()
1313 long do_splice_direct(struct file *in, loff_t *ppos, struct file *out,  in do_splice_direct()  argument
1336 	ret = splice_direct_to_actor(in, &sd, direct_splice_actor);  in do_splice_direct()
1351 static long do_splice(struct file *in, loff_t __user *off_in,  in do_splice()  argument
1360 	ipipe = get_pipe_info(in);  in do_splice()
1367 		if (!(in->f_mode & FMODE_READ))  in do_splice()
1418 			if (!(in->f_mode & FMODE_PREAD))  in do_splice()
1423 			offset = in->f_pos;  in do_splice()
1426 		ret = do_splice_to(in, &offset, opipe, len, flags);  in do_splice()
1429 			in->f_pos = offset;  in do_splice()
1693 	struct fd in, out;  in SYSCALL_DEFINE6()  local
1700 	in = fdget(fd_in);  in SYSCALL_DEFINE6()
1701 	if (in.file) {  in SYSCALL_DEFINE6()
1702 		if (in.file->f_mode & FMODE_READ) {  in SYSCALL_DEFINE6()
1706 					error = do_splice(in.file, off_in,  in SYSCALL_DEFINE6()
1712 		fdput(in);  in SYSCALL_DEFINE6()
1995 static long do_tee(struct file *in, struct file *out, size_t len,  in do_tee()  argument
1998 	struct pipe_inode_info *ipipe = get_pipe_info(in);  in do_tee()
2024 	struct fd in;  in SYSCALL_DEFINE4()  local
2031 	in = fdget(fdin);  in SYSCALL_DEFINE4()
2032 	if (in.file) {  in SYSCALL_DEFINE4()
2033 		if (in.file->f_mode & FMODE_READ) {  in SYSCALL_DEFINE4()
2037 					error = do_tee(in.file, out.file,  in SYSCALL_DEFINE4()
2042  		fdput(in);  in SYSCALL_DEFINE4()