41 static void erofs_fscache_put_subrequest(struct netfs_io_subrequest *subreq)  in erofs_fscache_put_subrequest()  argument
43 	if (!refcount_dec_and_test(&subreq->ref))  in erofs_fscache_put_subrequest()
45 	erofs_fscache_put_request(subreq->rreq);  in erofs_fscache_put_subrequest()
46 	kfree(subreq);  in erofs_fscache_put_subrequest()
51 	struct netfs_io_subrequest *subreq;  in erofs_fscache_clear_subrequests()  local
54 		subreq = list_first_entry(&rreq->subrequests,  in erofs_fscache_clear_subrequests()
56 		list_del(&subreq->rreq_link);  in erofs_fscache_clear_subrequests()
57 		erofs_fscache_put_subrequest(subreq);  in erofs_fscache_clear_subrequests()
63 	struct netfs_io_subrequest *subreq;  in erofs_fscache_rreq_unlock_folios()  local
72 	subreq = list_first_entry(&rreq->subrequests,  in erofs_fscache_rreq_unlock_folios()
74 	subreq_failed = (subreq->error < 0);  in erofs_fscache_rreq_unlock_folios()
88 			if (!subreq) {  in erofs_fscache_rreq_unlock_folios()
94 			if (pgend < iopos + subreq->len)  in erofs_fscache_rreq_unlock_folios()
97 			iopos += subreq->len;  in erofs_fscache_rreq_unlock_folios()
98 			if (!list_is_last(&subreq->rreq_link,  in erofs_fscache_rreq_unlock_folios()
100 				subreq = list_next_entry(subreq, rreq_link);  in erofs_fscache_rreq_unlock_folios()
101 				subreq_failed = (subreq->error < 0);  in erofs_fscache_rreq_unlock_folios()
103 				subreq = NULL;  in erofs_fscache_rreq_unlock_folios()
128 	struct netfs_io_subrequest *subreq = priv;  in erofc_fscache_subreq_complete()  local
129 	struct netfs_io_request *rreq = subreq->rreq;  in erofc_fscache_subreq_complete()
132 		subreq->error = transferred_or_error;  in erofc_fscache_subreq_complete()
137 	erofs_fscache_put_subrequest(subreq);  in erofc_fscache_subreq_complete()
150 	struct netfs_io_subrequest *subreq;  in erofs_fscache_read_folios_async()  local
165 		subreq = kzalloc(sizeof(struct netfs_io_subrequest),  in erofs_fscache_read_folios_async()
167 		if (subreq) {  in erofs_fscache_read_folios_async()
168 			INIT_LIST_HEAD(&subreq->rreq_link);  in erofs_fscache_read_folios_async()
169 			refcount_set(&subreq->ref, 2);  in erofs_fscache_read_folios_async()
170 			subreq->rreq = rreq;  in erofs_fscache_read_folios_async()
177 		subreq->start = pstart + done;  in erofs_fscache_read_folios_async()
178 		subreq->len	=  len - done;  in erofs_fscache_read_folios_async()
179 		subreq->flags = 1 << NETFS_SREQ_ONDEMAND;  in erofs_fscache_read_folios_async()
181 		list_add_tail(&subreq->rreq_link, &rreq->subrequests);  in erofs_fscache_read_folios_async()
183 		source = cres->ops->prepare_read(subreq, LLONG_MAX);  in erofs_fscache_read_folios_async()
184 		if (WARN_ON(subreq->len == 0))  in erofs_fscache_read_folios_async()
190 			subreq->error = ret;  in erofs_fscache_read_folios_async()
191 			erofs_fscache_put_subrequest(subreq);  in erofs_fscache_read_folios_async()
198 				start + done, subreq->len);  in erofs_fscache_read_folios_async()
200 		ret = fscache_read(cres, subreq->start, &iter,  in erofs_fscache_read_folios_async()
202 				   erofc_fscache_subreq_complete, subreq);  in erofs_fscache_read_folios_async()
210 		done += subreq->len;  in erofs_fscache_read_folios_async()