100 static int hugetlb_acct_memory(struct hstate *h, long delta);
160 				      long delta)  in hugepage_subpool_get_pages()  argument
162 	long ret = delta;  in hugepage_subpool_get_pages()
170 		if ((spool->used_hpages + delta) <= spool->max_hpages)  in hugepage_subpool_get_pages()
171 			spool->used_hpages += delta;  in hugepage_subpool_get_pages()
180 		if (delta > spool->rsv_hpages) {  in hugepage_subpool_get_pages()
185 			ret = delta - spool->rsv_hpages;  in hugepage_subpool_get_pages()
189 			spool->rsv_hpages -= delta;  in hugepage_subpool_get_pages()
205 				       long delta)  in hugepage_subpool_put_pages()  argument
207 	long ret = delta;  in hugepage_subpool_put_pages()
210 		return delta;  in hugepage_subpool_put_pages()
215 		spool->used_hpages -= delta;  in hugepage_subpool_put_pages()
219 		if (spool->rsv_hpages + delta <= spool->min_hpages)  in hugepage_subpool_put_pages()
222 			ret = spool->rsv_hpages + delta - spool->min_hpages;  in hugepage_subpool_put_pages()
224 		spool->rsv_hpages += delta;  in hugepage_subpool_put_pages()
2011 static int gather_surplus_pages(struct hstate *h, int delta)  in gather_surplus_pages()  argument
2020 	needed = (h->resv_huge_pages + delta) - h->free_huge_pages;  in gather_surplus_pages()
2022 		h->resv_huge_pages += delta;  in gather_surplus_pages()
2049 	needed = (h->resv_huge_pages + delta) -  in gather_surplus_pages()
2070 	h->resv_huge_pages += delta;  in gather_surplus_pages()
2626 				int delta)  in adjust_pool_surplus()  argument
2630 	VM_BUG_ON(delta != -1 && delta != 1);  in adjust_pool_surplus()
2632 	if (delta < 0) {  in adjust_pool_surplus()
2647 	h->surplus_huge_pages += delta;  in adjust_pool_surplus()
2648 	h->surplus_huge_pages_node[node] += delta;  in adjust_pool_surplus()
3607 static int hugetlb_acct_memory(struct hstate *h, long delta)  in hugetlb_acct_memory()  argument
3635 	if (delta > 0) {  in hugetlb_acct_memory()
3636 		if (gather_surplus_pages(h, delta) < 0)  in hugetlb_acct_memory()
3639 		if (delta > allowed_mems_nr(h)) {  in hugetlb_acct_memory()
3640 			return_unused_surplus_pages(h, delta);  in hugetlb_acct_memory()
3646 	if (delta < 0)  in hugetlb_acct_memory()
3647 		return_unused_surplus_pages(h, (unsigned long) -delta);  in hugetlb_acct_memory()