106 int init_new_context(struct task_struct *tsk, struct mm_struct *mm)  in init_new_context()  argument
112 	mutex_init(&mm->context.lock);  in init_new_context()
113 	old_mm = current->mm;  in init_new_context()
115 		mm->context.ldt = NULL;  in init_new_context()
121 		mm->context.ldt = NULL;  in init_new_context()
135 	mm->context.ldt = new_ldt;  in init_new_context()
147 void destroy_context(struct mm_struct *mm)  in destroy_context()  argument
149 	free_ldt_struct(mm->context.ldt);  in destroy_context()
150 	mm->context.ldt = NULL;  in destroy_context()
157 	struct mm_struct *mm = current->mm;  in read_ldt()  local
159 	mutex_lock(&mm->context.lock);  in read_ldt()
161 	if (!mm->context.ldt) {  in read_ldt()
169 	size = mm->context.ldt->size * LDT_ENTRY_SIZE;  in read_ldt()
173 	if (copy_to_user(ptr, mm->context.ldt->entries, size)) {  in read_ldt()
188 	mutex_unlock(&mm->context.lock);  in read_ldt()
209 	struct mm_struct *mm = current->mm;  in write_ldt()  local
248 	mutex_lock(&mm->context.lock);  in write_ldt()
250 	old_ldt = mm->context.ldt;  in write_ldt()
264 	install_ldt(mm, new_ldt);  in write_ldt()
269 	mutex_unlock(&mm->context.lock);  in write_ldt()