mm: fault feedback #2

[mirror_ubuntu-zesty-kernel.git] / arch / sh / mm / fault.c

diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c
index 0b3eaf6fbb28a1bfe20f376342b9c6e940286273..964c6767dc737e0dd0cd3ff361efa8e5415d8715 100644 (file)
--- a/arch/sh/mm/fault.c
+++ b/arch/sh/mm/fault.c
@@ -33,6 +33,7 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
        struct mm_struct *mm;
        struct vm_area_struct * vma;
        int si_code;
+       int fault;
        siginfo_t info;
 
        trace_hardirqs_on();
@@ -124,20 +125,18 @@ good_area:
         * the fault.
         */
 survive:
-       switch (handle_mm_fault(mm, vma, address, writeaccess)) {
-               case VM_FAULT_MINOR:
-                       tsk->min_flt++;
-                       break;
-               case VM_FAULT_MAJOR:
-                       tsk->maj_flt++;
-                       break;
-               case VM_FAULT_SIGBUS:
-                       goto do_sigbus;
-               case VM_FAULT_OOM:
+       fault = handle_mm_fault(mm, vma, address, writeaccess);
+       if (unlikely(fault & VM_FAULT_ERROR)) {
+               if (fault & VM_FAULT_OOM)
                        goto out_of_memory;
-               default:
-                       BUG();
+               else if (fault & VM_FAULT_SIGBUS)
+                       goto do_sigbus;
+               BUG();
        }
+       if (fault & VM_FAULT_MAJOR)
+               tsk->maj_flt++;
+       else
+               tsk->min_flt++;
 
        up_read(&mm->mmap_sem);
        return;