32 static long mm_iommu_adjust_locked_vm(struct mm_struct *mm,  in mm_iommu_adjust_locked_vm()  argument
40 	down_write(&mm->mmap_sem);  in mm_iommu_adjust_locked_vm()
43 		locked = mm->locked_vm + npages;  in mm_iommu_adjust_locked_vm()
48 			mm->locked_vm += npages;  in mm_iommu_adjust_locked_vm()
50 		if (WARN_ON_ONCE(npages > mm->locked_vm))  in mm_iommu_adjust_locked_vm()
51 			npages = mm->locked_vm;  in mm_iommu_adjust_locked_vm()
52 		mm->locked_vm -= npages;  in mm_iommu_adjust_locked_vm()
59 			mm->locked_vm << PAGE_SHIFT,  in mm_iommu_adjust_locked_vm()
61 	up_write(&mm->mmap_sem);  in mm_iommu_adjust_locked_vm()
68 	if (!current || !current->mm)  in mm_iommu_preregistered()
71 	return !list_empty(&current->mm->context.iommu_group_mem_list);  in mm_iommu_preregistered()
82 	if (!current || !current->mm)  in mm_iommu_get()
87 	list_for_each_entry_rcu(mem, &current->mm->context.iommu_group_mem_list,  in mm_iommu_get()
105 	ret = mm_iommu_adjust_locked_vm(current->mm, entries, true);  in mm_iommu_get()
145 	list_add_rcu(&mem->next, &current->mm->context.iommu_group_mem_list);  in mm_iommu_get()
149 		mm_iommu_adjust_locked_vm(current->mm, locked_entries, false);  in mm_iommu_get()
194 	mm_iommu_adjust_locked_vm(current->mm, mem->entries, false);  in mm_iommu_release()
202 	if (!current || !current->mm)  in mm_iommu_put()
240 			&current->mm->context.iommu_group_mem_list,  in mm_iommu_lookup()
260 			&current->mm->context.iommu_group_mem_list,  in mm_iommu_find()