n_alloc 981 tools/perf/builtin-kmem.c static double fragmentation(unsigned long n_req, unsigned long n_alloc) n_alloc 983 tools/perf/builtin-kmem.c if (n_alloc == 0) n_alloc 986 tools/perf/builtin-kmem.c return 100.0 - (100.0 * n_req / n_alloc);