397 int af_alg_make_sg(struct af_alg_sgl *sgl, struct iov_iter *iter, int len)  in af_alg_make_sg()  argument
403 	n = iov_iter_get_pages(iter, sgl->pages, len, ALG_MAX_PAGES, &off);  in af_alg_make_sg()
411 	sg_init_table(sgl->sg, npages + 1);  in af_alg_make_sg()
416 		sg_set_page(sgl->sg + i, sgl->pages[i], plen, off);  in af_alg_make_sg()
421 	sg_mark_end(sgl->sg + npages - 1);  in af_alg_make_sg()
422 	sgl->npages = npages;  in af_alg_make_sg()
435 void af_alg_free_sg(struct af_alg_sgl *sgl)  in af_alg_free_sg()  argument
439 	for (i = 0; i < sgl->npages; i++)  in af_alg_free_sg()
440 		put_page(sgl->pages[i]);  in af_alg_free_sg()
495 	struct af_alg_tsgl *sgl;  in af_alg_alloc_tsgl()  local
498 	sgl = list_entry(ctx->tsgl_list.prev, struct af_alg_tsgl, list);  in af_alg_alloc_tsgl()
500 		sg = sgl->sg;  in af_alg_alloc_tsgl()
502 	if (!sg || sgl->cur >= MAX_SGL_ENTS) {  in af_alg_alloc_tsgl()
503 		sgl = sock_kmalloc(sk,  in af_alg_alloc_tsgl()
504 				   struct_size(sgl, sg, (MAX_SGL_ENTS + 1)),  in af_alg_alloc_tsgl()
506 		if (!sgl)  in af_alg_alloc_tsgl()
509 		sg_init_table(sgl->sg, MAX_SGL_ENTS + 1);  in af_alg_alloc_tsgl()
510 		sgl->cur = 0;  in af_alg_alloc_tsgl()
513 			sg_chain(sg, MAX_SGL_ENTS + 1, sgl->sg);  in af_alg_alloc_tsgl()
515 		list_add_tail(&sgl->list, &ctx->tsgl_list);  in af_alg_alloc_tsgl()
537 	struct af_alg_tsgl *sgl, *tmp;  in af_alg_count_tsgl()  local
544 	list_for_each_entry_safe(sgl, tmp, &ctx->tsgl_list, list) {  in af_alg_count_tsgl()
545 		struct scatterlist *sg = sgl->sg;  in af_alg_count_tsgl()
547 		for (i = 0; i < sgl->cur; i++) {  in af_alg_count_tsgl()
594 	struct af_alg_tsgl *sgl;  in af_alg_pull_tsgl()  local
599 		sgl = list_first_entry(&ctx->tsgl_list, struct af_alg_tsgl,  in af_alg_pull_tsgl()
601 		sg = sgl->sg;  in af_alg_pull_tsgl()
603 		for (i = 0; i < sgl->cur; i++) {  in af_alg_pull_tsgl()
642 		list_del(&sgl->list);  in af_alg_pull_tsgl()
643 		sock_kfree_s(sk, sgl, sizeof(*sgl) + sizeof(sgl->sg[0]) *  in af_alg_pull_tsgl()
669 		af_alg_free_sg(&rsgl->sgl);  in af_alg_free_areq_sgls()
832 	struct af_alg_tsgl *sgl;  in af_alg_sendmsg()  local
881 			sgl = list_entry(ctx->tsgl_list.prev,  in af_alg_sendmsg()
883 			sg = sgl->sg + sgl->cur - 1;  in af_alg_sendmsg()
916 		sgl = list_entry(ctx->tsgl_list.prev, struct af_alg_tsgl,  in af_alg_sendmsg()
918 		sg = sgl->sg;  in af_alg_sendmsg()
919 		if (sgl->cur)  in af_alg_sendmsg()
920 			sg_unmark_end(sg + sgl->cur - 1);  in af_alg_sendmsg()
923 			unsigned int i = sgl->cur;  in af_alg_sendmsg()
946 			sgl->cur++;  in af_alg_sendmsg()
947 		} while (len && sgl->cur < MAX_SGL_ENTS);  in af_alg_sendmsg()
950 			sg_mark_end(sg + sgl->cur - 1);  in af_alg_sendmsg()
978 	struct af_alg_tsgl *sgl;  in af_alg_sendpage()  local
1002 	sgl = list_entry(ctx->tsgl_list.prev, struct af_alg_tsgl, list);  in af_alg_sendpage()
1004 	if (sgl->cur)  in af_alg_sendpage()
1005 		sg_unmark_end(sgl->sg + sgl->cur - 1);  in af_alg_sendpage()
1007 	sg_mark_end(sgl->sg + sgl->cur);  in af_alg_sendpage()
1010 	sg_set_page(sgl->sg + sgl->cur, page, size, offset);  in af_alg_sendpage()
1011 	sgl->cur++;  in af_alg_sendpage()
1153 		rsgl->sgl.npages = 0;  in af_alg_get_rsgl()
1157 		err = af_alg_make_sg(&rsgl->sgl, &msg->msg_iter, seglen);  in af_alg_get_rsgl()
1165 			af_alg_link_sg(&areq->last_rsgl->sgl, &rsgl->sgl);  in af_alg_get_rsgl()