73 	const size_t pa_size = n_pages * sizeof(struct page *);  in relay_alloc_page_array()
126 static void *relay_alloc_buf(struct rchan_buf *buf, size_t *size)  in relay_alloc_buf()
169 	if (chan->n_subbufs > UINT_MAX / sizeof(size_t *))  in relay_create_buf()
175 	buf->padding = kmalloc(chan->n_subbufs * sizeof(size_t *), GFP_KERNEL);  in relay_create_buf()
259 	size_t ready = buf->subbufs_produced - buf->subbufs_consumed;  in relay_buf_full()
279 					  size_t prev_padding)  in subbuf_start_default_callback()
353 	size_t i;  in __relay_reset()
571 			 size_t subbuf_size,  in relay_open()
572 			 size_t n_subbufs,  in relay_open()
722 size_t relay_switch_subbuf(struct rchan_buf *buf, size_t length)  in relay_switch_subbuf()
725 	size_t old_subbuf, new_subbuf;  in relay_switch_subbuf()
790 			    size_t subbufs_consumed)  in relay_subbufs_consumed()
940 				    size_t read_pos,  in relay_file_read_consume()
941 				    size_t bytes_consumed)  in relay_file_read_consume()
943 	size_t subbuf_size = buf->chan->subbuf_size;  in relay_file_read_consume()
944 	size_t n_subbufs = buf->chan->n_subbufs;  in relay_file_read_consume()
945 	size_t read_subbuf;  in relay_file_read_consume()
973 static int relay_file_read_avail(struct rchan_buf *buf, size_t read_pos)  in relay_file_read_avail()
975 	size_t subbuf_size = buf->chan->subbuf_size;  in relay_file_read_avail()
976 	size_t n_subbufs = buf->chan->n_subbufs;  in relay_file_read_avail()
977 	size_t produced = buf->subbufs_produced;  in relay_file_read_avail()
978 	size_t consumed = buf->subbufs_consumed;  in relay_file_read_avail()
1017 static size_t relay_file_read_subbuf_avail(size_t read_pos,  in relay_file_read_subbuf_avail()
1020 	size_t padding, avail = 0;  in relay_file_read_subbuf_avail()
1021 	size_t read_subbuf, read_offset, write_subbuf, write_offset;  in relay_file_read_subbuf_avail()
1022 	size_t subbuf_size = buf->chan->subbuf_size;  in relay_file_read_subbuf_avail()
1048 static size_t relay_file_read_start_pos(size_t read_pos,  in relay_file_read_start_pos()
1051 	size_t read_subbuf, padding, padding_start, padding_end;  in relay_file_read_start_pos()
1052 	size_t subbuf_size = buf->chan->subbuf_size;  in relay_file_read_start_pos()
1053 	size_t n_subbufs = buf->chan->n_subbufs;  in relay_file_read_start_pos()
1054 	size_t consumed = buf->subbufs_consumed % n_subbufs;  in relay_file_read_start_pos()
1076 static size_t relay_file_read_end_pos(struct rchan_buf *buf,  in relay_file_read_end_pos()
1077 				      size_t read_pos,  in relay_file_read_end_pos()
1078 				      size_t count)  in relay_file_read_end_pos()
1080 	size_t read_subbuf, padding, end_pos;  in relay_file_read_end_pos()
1081 	size_t subbuf_size = buf->chan->subbuf_size;  in relay_file_read_end_pos()
1082 	size_t n_subbufs = buf->chan->n_subbufs;  in relay_file_read_end_pos()
1099 static int subbuf_read_actor(size_t read_start,  in subbuf_read_actor()
1101 			     size_t avail,  in subbuf_read_actor()
1120 typedef int (*subbuf_actor_t) (size_t read_start,
1122 			       size_t avail,
1133 	size_t read_start, avail;  in relay_file_read_subbufs()
1166 			       size_t count,  in relay_file_read()
1214 			       size_t len,  in subbuf_splice_actor()
1223 	size_t read_start = (size_t) do_div(pos, alloc_size);  in subbuf_splice_actor()
1224 	size_t read_subbuf = read_start / subbuf_size;  in subbuf_splice_actor()
1225 	size_t padding = rbuf->padding[read_subbuf];  in subbuf_splice_actor()
1226 	size_t nonpad_end = read_subbuf * subbuf_size + subbuf_size - padding;  in subbuf_splice_actor()
1307 				      size_t len,  in relay_file_splice_read()