50 	int nents;  in sg_nents()  local
51 	for (nents = 0; sg; sg = sg_next(sg))  in sg_nents()
52 		nents++;  in sg_nents()
53 	return nents;  in sg_nents()
73 	int nents;  in sg_nents_for_len()  local
79 	for (nents = 0, total = 0; sg; sg = sg_next(sg)) {  in sg_nents_for_len()
80 		nents++;  in sg_nents_for_len()
83 			return nents;  in sg_nents_for_len()
104 struct scatterlist *sg_last(struct scatterlist *sgl, unsigned int nents)  in sg_last()  argument
109 	for_each_sg(sgl, sg, nents, i)  in sg_last()
127 void sg_init_table(struct scatterlist *sgl, unsigned int nents)  in sg_init_table()  argument
129 	memset(sgl, 0, sizeof(*sgl) * nents);  in sg_init_table()
130 	sg_init_marker(sgl, nents);  in sg_init_table()
152 static struct scatterlist *sg_kmalloc(unsigned int nents, gfp_t gfp_mask)  in sg_kmalloc()  argument
154 	if (nents == SG_MAX_SINGLE_ALLOC) {  in sg_kmalloc()
168 		return kmalloc_array(nents, sizeof(struct scatterlist),  in sg_kmalloc()
172 static void sg_kfree(struct scatterlist *sg, unsigned int nents)  in sg_kfree()  argument
174 	if (nents == SG_MAX_SINGLE_ALLOC) {  in sg_kfree()
286 int __sg_alloc_table(struct sg_table *table, unsigned int nents,  in __sg_alloc_table()  argument
298 	if (nents == 0)  in __sg_alloc_table()
301 	if (WARN_ON_ONCE(nents > max_ents))  in __sg_alloc_table()
305 	left = nents;  in __sg_alloc_table()
332 				table->nents = ++table->orig_nents;  in __sg_alloc_table()
338 		table->nents = table->orig_nents += sg_size;  in __sg_alloc_table()
375 int sg_alloc_table(struct sg_table *table, unsigned int nents, gfp_t gfp_mask)  in sg_alloc_table()  argument
379 	ret = __sg_alloc_table(table, nents, SG_MAX_SINGLE_ALLOC,  in sg_alloc_table()
546 	sgt_append->sgt.nents += added_nents;  in sg_alloc_append_table_from_pages()
547 	sgt_append->sgt.orig_nents = sgt_append->sgt.nents;  in sg_alloc_append_table_from_pages()
686 void sgl_free_n_order(struct scatterlist *sgl, int nents, int order)  in sgl_free_n_order()  argument
692 	for_each_sg(sgl, sg, nents, i) {  in sgl_free_n_order()
727 			  struct scatterlist *sglist, unsigned int nents,  in __sg_page_iter_start()  argument
731 	piter->__nents = nents;  in __sg_page_iter_start()
802 		    unsigned int nents, unsigned int flags)  in sg_miter_start()  argument
806 	__sg_page_iter_start(&miter->piter, sgl, nents, 0);  in sg_miter_start()
967 size_t sg_copy_buffer(struct scatterlist *sgl, unsigned int nents, void *buf,  in sg_copy_buffer()  argument
979 	sg_miter_start(&miter, sgl, nents, sg_flags);  in sg_copy_buffer()
1013 size_t sg_copy_from_buffer(struct scatterlist *sgl, unsigned int nents,  in sg_copy_from_buffer()  argument
1016 	return sg_copy_buffer(sgl, nents, (void *)buf, buflen, 0, false);  in sg_copy_from_buffer()
1030 size_t sg_copy_to_buffer(struct scatterlist *sgl, unsigned int nents,  in sg_copy_to_buffer()  argument
1033 	return sg_copy_buffer(sgl, nents, buf, buflen, 0, true);  in sg_copy_to_buffer()
1048 size_t sg_pcopy_from_buffer(struct scatterlist *sgl, unsigned int nents,  in sg_pcopy_from_buffer()  argument
1051 	return sg_copy_buffer(sgl, nents, (void *)buf, buflen, skip, false);  in sg_pcopy_from_buffer()
1066 size_t sg_pcopy_to_buffer(struct scatterlist *sgl, unsigned int nents,  in sg_pcopy_to_buffer()  argument
1069 	return sg_copy_buffer(sgl, nents, buf, buflen, skip, true);  in sg_pcopy_to_buffer()
1082 size_t sg_zero_buffer(struct scatterlist *sgl, unsigned int nents,  in sg_zero_buffer()  argument
1089 	sg_miter_start(&miter, sgl, nents, sg_flags);  in sg_zero_buffer()
1118 	struct scatterlist *sg = sgtable->sgl + sgtable->nents;  in extract_user_to_sg()
1147 			sgtable->nents++;  in extract_user_to_sg()
1157 	while (sgtable->nents > sgtable->orig_nents)  in extract_user_to_sg()
1158 		unpin_user_page(sg_page(&sgtable->sgl[--sgtable->nents]));  in extract_user_to_sg()
1173 	struct scatterlist *sg = sgtable->sgl + sgtable->nents;  in extract_bvec_to_sg()
1191 		sgtable->nents++;  in extract_bvec_to_sg()
1219 	struct scatterlist *sg = sgtable->sgl + sgtable->nents;  in extract_kvec_to_sg()
1250 			sgtable->nents++;  in extract_kvec_to_sg()
1280 	struct scatterlist *sg = sgtable->sgl + sgtable->nents;  in extract_folioq_to_sg()
1302 			sgtable->nents++;  in extract_folioq_to_sg()
1340 	struct scatterlist *sg = sgtable->sgl + sgtable->nents;  in extract_xarray_to_sg()
1363 		sgtable->nents++;  in extract_xarray_to_sg()