waittime_stamp 246 include/linux/lockdep.h u64 waittime_stamp; waittime_stamp 3906 kernel/locking/lockdep.c hlock->waittime_stamp = 0; waittime_stamp 4645 kernel/locking/lockdep.c hlock->waittime_stamp = lockstat_clock(); waittime_stamp 4688 kernel/locking/lockdep.c if (hlock->waittime_stamp) { waittime_stamp 4690 kernel/locking/lockdep.c waittime = now - hlock->waittime_stamp;