1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
7 #define __round_mask(x, y) ((__typeof__(x))((y)-1))  argument
10 #define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1)  argument
26 	int offset;  in bpf_alloc()  local
29 	if (size >= PAGE_SIZE - 8)  in bpf_alloc()
38 		*cur_offset = PAGE_SIZE - 8;  in bpf_alloc()
39 		obj_cnt = page + PAGE_SIZE - 8;  in bpf_alloc()
43 		obj_cnt = page + PAGE_SIZE - 8;  in bpf_alloc()
46 	offset = *cur_offset - size;  in bpf_alloc()
47 	if (offset < 0)  in bpf_alloc()
51 	*cur_offset = offset;  in bpf_alloc()
52 	return page + offset;  in bpf_alloc()
59 	addr = (void __arena *)(((long)addr) & ~(PAGE_SIZE - 1));  in bpf_free()
60 	obj_cnt = addr + PAGE_SIZE - 8;  in bpf_free()
61 	if (--(*obj_cnt) == 0)  in bpf_free()