47 	ldt = READ_ONCE(mm->context.ldt);  in load_mm_ldt()
109 	if (unlikely((unsigned long)prev->context.ldt |  in switch_ldt()
110 		     (unsigned long)next->context.ldt))  in switch_ldt()
193 	if (mm->context.ldt) {  in do_sanity_check()
243 	if (boot_cpu_has(X86_FEATURE_PTI) && !mm->context.ldt)  in map_ldt_struct_to_user()
268 	if (boot_cpu_has(X86_FEATURE_PTI) && !mm->context.ldt)  in map_ldt_struct_to_user()
423 	mutex_lock(&mm->context.lock);  in install_ldt()
426 	smp_store_release(&mm->context.ldt, ldt);  in install_ldt()
431 	mutex_unlock(&mm->context.lock);  in install_ldt()
459 	mutex_lock(&old_mm->context.lock);  in ldt_dup_context()
460 	if (!old_mm->context.ldt)  in ldt_dup_context()
463 	new_ldt = alloc_ldt_struct(old_mm->context.ldt->nr_entries);  in ldt_dup_context()
469 	memcpy(new_ldt->entries, old_mm->context.ldt->entries,  in ldt_dup_context()
479 	mm->context.ldt = new_ldt;  in ldt_dup_context()
482 	mutex_unlock(&old_mm->context.lock);  in ldt_dup_context()
493 	free_ldt_struct(mm->context.ldt);  in destroy_context_ldt()
494 	mm->context.ldt = NULL;  in destroy_context_ldt()
508 	down_read(&mm->context.ldt_usr_sem);  in read_ldt()
510 	if (!mm->context.ldt) {  in read_ldt()
518 	entries_size = mm->context.ldt->nr_entries * LDT_ENTRY_SIZE;  in read_ldt()
522 	if (copy_to_user(ptr, mm->context.ldt->entries, entries_size)) {  in read_ldt()
537 	up_read(&mm->context.ldt_usr_sem);  in read_ldt()
619 	if (down_write_killable(&mm->context.ldt_usr_sem))  in write_ldt()
622 	old_ldt       = mm->context.ldt;  in write_ldt()
662 	up_write(&mm->context.ldt_usr_sem);  in write_ldt()