37 	int npages = region->length >> PAGE_SHIFT;  in afu_dma_pin_pages()  local
41 	ret = account_locked_vm(current->mm, npages, true);  in afu_dma_pin_pages()
45 	region->pages = kcalloc(npages, sizeof(struct page *), GFP_KERNEL);  in afu_dma_pin_pages()
51 	pinned = pin_user_pages_fast(region->user_addr, npages, FOLL_WRITE,  in afu_dma_pin_pages()
56 	} else if (pinned != npages) {  in afu_dma_pin_pages()
70 	account_locked_vm(current->mm, npages, false);  in afu_dma_pin_pages()
85 	long npages = region->length >> PAGE_SHIFT;  in afu_dma_unpin_pages()  local
88 	unpin_user_pages(region->pages, npages);  in afu_dma_unpin_pages()
90 	account_locked_vm(current->mm, npages, false);  in afu_dma_unpin_pages()
92 	dev_dbg(dev, "%ld pages unpinned\n", npages);  in afu_dma_unpin_pages()
104 	int npages = region->length >> PAGE_SHIFT;  in afu_dma_check_continuous_pages()  local
107 	for (i = 0; i < npages - 1; i++)  in afu_dma_check_continuous_pages()