8  *  Derived from "arch/i386/mm/fault.c"
181 	pr_alert("Fault in ");  in dump_fault_info()
227 	printk(KERN_ALERT "User process fault: interruption code %04x ilc:%d ",  in report_user_fault()
247 static noinline void do_no_context(struct pt_regs *regs, vm_fault_t fault)  in do_no_context()  argument
256 	if ((fault_type == KERNEL_FAULT) && (fault == VM_FAULT_BADCONTEXT)) {  in do_no_context()
298 static noinline void do_fault_error(struct pt_regs *regs, vm_fault_t fault)  in do_fault_error()  argument
302 	switch (fault) {  in do_fault_error()
308 			si_code = (fault == VM_FAULT_BADMAP) ?  in do_fault_error()
316 		do_no_context(regs, fault);  in do_fault_error()
320 			do_no_context(regs, fault);  in do_fault_error()
322 	default: /* fault & VM_FAULT_ERROR */  in do_fault_error()
323 		if (fault & VM_FAULT_OOM) {  in do_fault_error()
325 				do_no_context(regs, fault);  in do_fault_error()
328 		} else if (fault & VM_FAULT_SIGSEGV) {  in do_fault_error()
331 				do_no_context(regs, fault);  in do_fault_error()
334 		} else if (fault & (VM_FAULT_SIGBUS | VM_FAULT_HWPOISON)) {  in do_fault_error()
337 				do_no_context(regs, fault);  in do_fault_error()
341 			pr_emerg("Unexpected fault flags: %08x\n", fault);  in do_fault_error()
368 	vm_fault_t fault;  in do_exception()  local
386 	 * Verify that the fault happened in user space, that  in do_exception()
390 	fault = VM_FAULT_BADCONTEXT;  in do_exception()
419 	fault = handle_mm_fault(vma, address, flags | FAULT_FLAG_VMA_LOCK, regs);  in do_exception()
420 	if (!(fault & (VM_FAULT_RETRY | VM_FAULT_COMPLETED)))  in do_exception()
422 	if (!(fault & VM_FAULT_RETRY)) {  in do_exception()
424 		if (likely(!(fault & VM_FAULT_ERROR)))  in do_exception()
425 			fault = 0;  in do_exception()
430 	if (fault_signal_pending(fault, regs)) {  in do_exception()
431 		fault = VM_FAULT_SIGNAL;  in do_exception()
445 			fault = VM_FAULT_BADMAP;  in do_exception()
453 	fault = VM_FAULT_BADMAP;  in do_exception()
470 	fault = VM_FAULT_BADACCESS;  in do_exception()
475 	 * If for any reason at all we couldn't handle the fault,  in do_exception()
477 	 * the fault.  in do_exception()
479 	fault = handle_mm_fault(vma, address, flags, regs);  in do_exception()
480 	if (fault_signal_pending(fault, regs)) {  in do_exception()
481 		fault = VM_FAULT_SIGNAL;  in do_exception()
487 	/* The fault is fully completed (including releasing mmap lock) */  in do_exception()
488 	if (fault & VM_FAULT_COMPLETED) {  in do_exception()
493 		fault = 0;  in do_exception()
497 	if (unlikely(fault & VM_FAULT_ERROR))  in do_exception()
500 	if (fault & VM_FAULT_RETRY) {  in do_exception()
508 			fault = VM_FAULT_PFAULT;  in do_exception()
521 			fault = VM_FAULT_BADMAP;  in do_exception()
525 			fault = VM_FAULT_OOM;  in do_exception()
529 	fault = 0;  in do_exception()
533 	return fault;  in do_exception()
540 	vm_fault_t fault;  in do_protection_exception()  local
563 		fault = VM_FAULT_BADACCESS;  in do_protection_exception()
566 		fault = do_exception(regs, access);  in do_protection_exception()
568 	if (unlikely(fault))  in do_protection_exception()
569 		do_fault_error(regs, fault);  in do_protection_exception()
576 	vm_fault_t fault;  in do_dat_exception()  local
579 	fault = do_exception(regs, access);  in do_dat_exception()
580 	if (unlikely(fault))  in do_dat_exception()
581 		do_fault_error(regs, fault);  in do_dat_exception()
608 		 * memory. Trigger a segmentation fault.  in do_secure_storage_access()