4 files changed, 15 insertions, 31 deletions
diff --git a/arch/xtensa/kernel/ptrace.c b/arch/xtensa/kernel/ptrace.c
index 14104ff63093..06a13d9b69db 100644
--- a/arch/xtensa/kernel/ptrace.c
+++ b/arch/xtensa/kernel/ptrace.c
@@ -50,18 +50,8 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 	switch (request) {
 	case PTRACE_PEEKTEXT: /* read word at location addr. */
 	case PTRACE_PEEKDATA:
-	{
-		unsigned long tmp;
-		int copied;
-
-		copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
-		ret = -EIO;
-		if (copied != sizeof(tmp))
-			break;
-		ret = put_user(tmp,(unsigned long *) data);
-
+		ret = generic_ptrace_peekdata(child, addr, data);
 		goto out;
-	}
 
 	/* Read the word at location addr in the USER area.  */
 
@@ -138,10 +128,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 
 	case PTRACE_POKETEXT: /* write the word at location addr. */
 	case PTRACE_POKEDATA:
-		if (access_process_vm(child, addr, &data, sizeof(data), 1)
-		    == sizeof(data))
-			break;
-		ret = -EIO;
+		ret = generic_ptrace_pokedata(child, addr, data);
 		goto out;
 
 	case PTRACE_POKEUSR:
diff --git a/arch/xtensa/kernel/traps.c b/arch/xtensa/kernel/traps.c
index 693ab268485e..c5e62f9d9f50 100644
--- a/arch/xtensa/kernel/traps.c
+++ b/arch/xtensa/kernel/traps.c
@@ -482,6 +482,7 @@ void die(const char * str, struct pt_regs * regs, long err)
 	if (!user_mode(regs))
 		show_stack(NULL, (unsigned long*)regs->areg[1]);
 
+	add_taint(TAINT_DIE);
 	spin_unlock_irq(&die_lock);
 
 	if (in_interrupt())
diff --git a/arch/xtensa/kernel/vmlinux.lds.S b/arch/xtensa/kernel/vmlinux.lds.S
index bb3f1f3097a8..ac4ed52034db 100644
--- a/arch/xtensa/kernel/vmlinux.lds.S
+++ b/arch/xtensa/kernel/vmlinux.lds.S
@@ -191,10 +191,7 @@ SECTIONS
   __initramfs_end = .;
 #endif
 
-  . = ALIGN(4096);
-  __per_cpu_start = .;
-  .data.percpu  : { *(.data.percpu) }
-  __per_cpu_end = .;
+  PERCPU(4096)
 
 
   /* We need this dummy segment here */
diff --git a/arch/xtensa/mm/fault.c b/arch/xtensa/mm/fault.c
index 3dc6f2f07bbe..16004067add3 100644
--- a/arch/xtensa/mm/fault.c
+++ b/arch/xtensa/mm/fault.c
@@ -41,6 +41,7 @@ void do_page_fault(struct pt_regs *regs)
 	siginfo_t info;
 
 	int is_write, is_exec;
+	int fault;
 
 	info.si_code = SEGV_MAPERR;
 
@@ -102,20 +103,18 @@ good_area:
 	 * the fault.
 	 */
 survive:
-	switch (handle_mm_fault(mm, vma, address, is_write)) {
-	case VM_FAULT_MINOR:
-		current->min_flt++;
-		break;
-	case VM_FAULT_MAJOR:
-		current->maj_flt++;
-		break;
-	case VM_FAULT_SIGBUS:
-		goto do_sigbus;
-	case VM_FAULT_OOM:
-		goto out_of_memory;
-	default:
+	fault = handle_mm_fault(mm, vma, address, is_write);
+	if (unlikely(fault & VM_FAULT_ERROR)) {
+		if (fault & VM_FAULT_OOM)
+			goto out_of_memory;
+		else if (fault & VM_FAULT_SIGBUS)
+			goto do_sigbus;
 		BUG();
 	}
+	if (fault & VM_FAULT_MAJOR)
+		current->maj_flt++;
+	else
+		current->min_flt++;
 
 	up_read(&mm->mmap_sem);
 	return;