infiniband/core/umem.c

117  struct ib_umem_chunk *chunk, *tmp;
120  list_for_each_entry_safe(chunk, tmp, &umem->chunk_list, list) {
121  ib_dma_unmap_sg_attrs(dev, chunk->page_list,
122  chunk->nents, DMA_BIDIRECTIONAL, &chunk->attrs);
123  for (i = 0; i < chunk->nents; ++i) {
124  struct page *page = sg_page(&chunk->page_list[i]);
129  kfree(chunk);
132  struct ib_umem_chunk *chunk, *tmp;
137  list_for_each_entry_safe(chunk, tmp, &umem->chunk_list, list) {
138  ib_dma_unmap_sg_attrs(dev, chunk->page_list,
139  chunk->nents, DMA_BIDIRECTIONAL, &chunk->attrs);
140  for (i = 0; i < chunk->nents; ++i) {
141  struct page *page = sg_page(&chunk->page_list[i]);
152  kfree(chunk);
176 	 struct ib_umem_chunk *chunk;
261 	 chunk = kmalloc(sizeof *chunk + sizeof (struct scatterlist) *
264 	 if (!chunk) {
269 	 chunk->attrs = attrs;
270 	 chunk->nents = min_t(int, ret, IB_UMEM_MAX_PAGE_CHUNK);
271 	 sg_init_table(chunk->page_list, chunk->nents);
272 	 for (i = 0; i < chunk->nents; ++i) {
276 	 sg_set_page(&chunk->page_list[i], page_list[i + off], PAGE_SIZE, 0);
279 	 chunk->nmap = ib_dma_map_sg_attrs(context->device,
280 	 &chunk->page_list[0],
281 	 chunk->nents,
284 	 if (chunk->nmap <= 0) {
285 	 for (i = 0; i < chunk->nents; ++i)
286 	 put_page(sg_page(&chunk->page_list[i]));
287 	 kfree(chunk);
293 	 ret -= chunk->nents;
294 	 off += chunk->nents;
295 	 list_add_tail(&chunk->list, &umem->chunk_list);
318 	struct ib_umem_chunk *chunk;
385 		chunk = kmalloc(sizeof(*chunk) + (sizeof(struct scatterlist) * ents),
387 		if (!chunk) {
392 		chunk->attrs = attrs;
393 		chunk->nents = ents;
394 		sg_init_table(&chunk->page_list[0], ents);
395 		for (i = 0; i < chunk->nents; ++i) {
401 				kfree(chunk);
404 			sg_set_page(&chunk->page_list[i], PHYS_TO_VM_PAGE(pa), PAGE_SIZE,
410 		chunk->nmap = ib_dma_map_sg_attrs(context->device, &chunk->page_list[0],
411 				chunk->nents, DMA_BIDIRECTIONAL, &attrs);
412 		if (chunk->nmap != chunk->nents) {
413 			kfree(chunk);
418 		list_add_tail(&chunk->list, &umem->chunk_list);
517  struct ib_umem_chunk *chunk;
525  list_for_each_entry(chunk, &umem->chunk_list, list)
526  for (i = 0; i < chunk->nmap; ++i)
527  n += sg_dma_len(&chunk->page_list[i]) >> shift;