Thread group interval timer counts
struct thread_group_cputimer { struct task_cputime cputime; int running; raw_spinlock_t lock; };
cputime
thread group interval timers.
running
non-zero when there are timers running and cputime receives updates.
lock
lock for fields in this struct.
This structure contains the version of task_cputime, above, that is used for thread group CPU timer calculations.