12 void *fio_memalign(size_t alignment, size_t size)
14 struct align_footer *f;
15 void *ptr, *ret = NULL;
17 assert(!(alignment & (alignment - 1)));
19 ptr = malloc(size + alignment + size + sizeof(*f) - 1);
21 ret = PTR_ALIGN(ptr, alignment - 1);
23 f->offset = (uintptr_t) ret - (uintptr_t) ptr;
29 void fio_memfree(void *ptr, size_t size)
31 struct align_footer *f = ptr + size;
33 free(ptr - f->offset);