task_clear_jobctl_trapping(9) [centos man page]

TASK_CLEAR_JOBCTL_TR(9) 					   Driver Basics					   TASK_CLEAR_JOBCTL_TR(9)

NAME

       task_clear_jobctl_trapping - clear jobctl trapping bit

SYNOPSIS

       void task_clear_jobctl_trapping(struct task_struct * task);

ARGUMENTS

       task
	   target task

DESCRIPTION

       If JOBCTL_TRAPPING is set, a ptracer is waiting for us to enter TRACED. Clear it and wake up the ptracer. Note that we don't need any
       further locking.  task->siglock guarantees that task->parent points to the ptracer.

CONTEXT

       Must be called with task->sighand->siglock held.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						   TASK_CLEAR_JOBCTL_TR(9)

SCHEDULE_HRTIMEOUT_R(9) 					   Driver Basics					   SCHEDULE_HRTIMEOUT_R(9)

NAME

       schedule_hrtimeout_range - sleep until timeout

SYNOPSIS

       int __sched schedule_hrtimeout_range(ktime_t * expires, unsigned long delta, const enum hrtimer_mode mode);

ARGUMENTS

       expires
	   timeout value (ktime_t)

       delta
	   slack in expires timeout (ktime_t)

       mode
	   timer mode, HRTIMER_MODE_ABS or HRTIMER_MODE_REL

DESCRIPTION

       Make the current task sleep until the given expiry time has elapsed. The routine will return immediately unless the current task state has
       been set (see set_current_state).

       The delta argument gives the kernel the freedom to schedule the actual wakeup to a time that is both power and performance friendly. The
       kernel give the normal best effort behavior for "expires+delta", but may decide to fire the timer earlier, but no earlier than expires.

       You can set the task state as follows -

       TASK_UNINTERRUPTIBLE - at least timeout time is guaranteed to pass before the routine returns.

       TASK_INTERRUPTIBLE - the routine may return early if a signal is delivered to the current task.

       The current task state is guaranteed to be TASK_RUNNING when this routine returns.

       Returns 0 when the timer has expired otherwise -EINTR

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						   SCHEDULE_HRTIMEOUT_R(9)