sysfs__read_ull 18 tools/lib/api/cpu.c return sysfs__read_ull(entry, freq); sysfs__read_ull 42 tools/lib/api/fs/fs.h int sysfs__read_ull(const char *entry, unsigned long long *value); sysfs__read_ull 18 tools/perf/arch/s390/util/machine.c if (sysfs__read_ull(path, (unsigned long long *)start) < 0) {