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

include/linux/freezer.h

+11 −17

Original line number	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
		* 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
		* PF_NOFREEZE if needed and PF_FREEZER_SKIP is only set for userland vfork
		* parents. Fortunately, in the ____call_usermodehelper() case the parent won't
		* really block freeze_processes(), since ____call_usermodehelper() (the child)
		* does a little before exec/exit and it can't be frozen before waking up the
		* parent.
		* PF_NOFREEZE if needed. Fortunately, in the ____call_usermodehelper() case the
		* parent won't really block freeze_processes(), since ____call_usermodehelper()
		* (the child) does a little before exec/exit and it can't be frozen before
		* waking up the parent.
		*/

		/*
		* If the current task is a user space one, tell the freezer not to count it as
		* freezable.
		*/

		/* Tell the freezer not to count the current task as freezable. */
		static inline void freezer_do_not_count(void)
		{
		if (current->mm)
		current->flags \|= PF_FREEZER_SKIP;
		}

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

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