32 	pc = &current->active_mm->context;  in flush_ldt()
83 	smp_store_release(&current_mm->context.ldt, ldt);  in install_ldt()
112 	mutex_init(&mm->context.lock);  in init_new_context()
115 		mm->context.ldt = NULL;  in init_new_context()
119 	mutex_lock(&old_mm->context.lock);  in init_new_context()
120 	if (!old_mm->context.ldt) {  in init_new_context()
121 		mm->context.ldt = NULL;  in init_new_context()
125 	new_ldt = alloc_ldt_struct(old_mm->context.ldt->size);  in init_new_context()
131 	memcpy(new_ldt->entries, old_mm->context.ldt->entries,  in init_new_context()
135 	mm->context.ldt = new_ldt;  in init_new_context()
138 	mutex_unlock(&old_mm->context.lock);  in init_new_context()
149 	free_ldt_struct(mm->context.ldt);  in destroy_context()
150 	mm->context.ldt = NULL;  in destroy_context()
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()
248 	mutex_lock(&mm->context.lock);  in write_ldt()
250 	old_ldt = mm->context.ldt;  in write_ldt()
269 	mutex_unlock(&mm->context.lock);  in write_ldt()