20 void use_mm(struct mm_struct *mm)  in use_mm()  argument
27 	if (active_mm != mm) {  in use_mm()
28 		atomic_inc(&mm->mm_count);  in use_mm()
29 		tsk->active_mm = mm;  in use_mm()
31 	tsk->mm = mm;  in use_mm()
32 	switch_mm(active_mm, mm, tsk);  in use_mm()
38 	if (active_mm != mm)  in use_mm()
51 void unuse_mm(struct mm_struct *mm)  in unuse_mm()  argument
56 	sync_mm_rss(mm);  in unuse_mm()
57 	tsk->mm = NULL;  in unuse_mm()
59 	enter_lazy_tlb(mm, tsk);  in unuse_mm()