Commit 318aa296 authored by Harvey Harrison's avatar Harvey Harrison Committed by Ingo Molnar
Browse files

x86: more users of PF_ constants in fault_32|64.c 



Should be the last of the error_code tests that could use
the PF_ defines.  Makes X86_32|64 a little closer.

Signed-off-by: default avatarHarvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent a604b380

arch/x86/mm/fault_32.c

+4 −3
Original line number Diff line number Diff line
@@ -404,7 +404,8 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code) 
	 * protection error (error_code & 9) == 0.

	 */

	if (unlikely(address >= TASK_SIZE)) {

		if (!(error_code & 0x0000000d) && vmalloc_fault(address) >= 0)

		if (!(error_code & (PF_RSVD|PF_USER|PF_PROT)) &&

		    vmalloc_fault(address) >= 0)

			return;

		if (notify_page_fault(regs))

			return;
@@ -603,7 +604,7 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code) 
		__typeof__(pte_val(__pte(0))) page;



#ifdef CONFIG_X86_PAE

		if (error_code & 16) {

		if (error_code & PF_INSTR) {

			pte_t *pte = lookup_address(address);



			if (pte && pte_present(*pte) && !pte_exec_kernel(*pte))
@@ -674,7 +675,7 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code) 
		goto survive;

	}

	printk("VM: killing process %s\n", tsk->comm);

	if (error_code & 4)

	if (error_code & PF_USER)

		do_group_exit(SIGKILL);

	goto no_context;

arch/x86/mm/fault_64.c

+1 −1
Original line number Diff line number Diff line
@@ -677,7 +677,7 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs, 
		goto again;

	}

	printk("VM: killing process %s\n", tsk->comm);

	if (error_code & 4)

	if (error_code & PF_USER)

		do_group_exit(SIGKILL);

	goto no_context;