Merge branch 'pm-freezer' into pm-sleep (43753e58) · Commits · e / devices / android_kernel_fairphone_FP3

include/linux/freezer.h

+11 −17

Original line number	Original line	Diff line number	Diff line
	@@ -67,34 +67,28 @@ static inline bool cgroup_freezing(struct task_struct *task)
	* appropriately in case the child has exited before the freezing of tasks is		* appropriately in case the child has exited before the freezing of tasks is
	* complete. However, we don't want kernel threads to be frozen in unexpected		* complete. However, we don't want kernel threads to be frozen in unexpected
	* places, so we allow them to block freeze_processes() instead or to set		* places, so we allow them to block freeze_processes() instead or to set
	* PF_NOFREEZE if needed and PF_FREEZER_SKIP is only set for userland vfork		* PF_NOFREEZE if needed. Fortunately, in the ____call_usermodehelper() case the
	* parents. Fortunately, in the ____call_usermodehelper() case the parent won't		* parent won't really block freeze_processes(), since ____call_usermodehelper()
	* really block freeze_processes(), since ____call_usermodehelper() (the child)		* (the child) does a little before exec/exit and it can't be frozen before
	* does a little before exec/exit and it can't be frozen before waking up the		* waking up the parent.
	* parent.
	*/		*/

	/*
	* If the current task is a user space one, tell the freezer not to count it as		/* Tell the freezer not to count the current task as freezable. */
	* freezable.
	*/
	static inline void freezer_do_not_count(void)		static inline void freezer_do_not_count(void)
	{		{
	if (current->mm)
	current->flags \|= PF_FREEZER_SKIP;		current->flags \|= PF_FREEZER_SKIP;
	}		}

	/*		/*
	* If the current task is a user space one, tell the freezer to count it as		* Tell the freezer to count the current task as freezable again and try to
	* freezable again and try to freeze it.		* freeze it.
	*/		*/
	static inline void freezer_count(void)		static inline void freezer_count(void)
	{		{
	if (current->mm) {
	current->flags &= ~PF_FREEZER_SKIP;		current->flags &= ~PF_FREEZER_SKIP;
	try_to_freeze();		try_to_freeze();
	}		}
	}

	/*		/*
	* Check if the task should be counted as freezable by the freezer		* Check if the task should be counted as freezable by the freezer