Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm

[linux-2.6-omap-h63xx.git] / arch / avr32 / mm / fault.c

diff --git a/arch/avr32/mm/fault.c b/arch/avr32/mm/fault.c
index 4b2495285d948246372c91aa06f37ed893ad992d..ce4e4296b95467f3e0b715a9ec953398917be8f7 100644 (file)
--- a/arch/avr32/mm/fault.c
+++ b/arch/avr32/mm/fault.c
@@ -64,6 +64,7 @@ asmlinkage void do_page_fault(unsigned long ecr, struct pt_regs *regs)
        int writeaccess;
        long signr;
        int code;
+       int fault;
 
        if (notify_page_fault(regs, ecr))
                return;
@@ -132,20 +133,18 @@ good_area:
         * 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:
-               goto out_of_memory;
-       default:
+       fault = handle_mm_fault(mm, vma, address, writeaccess);
+       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)
+               tsk->maj_flt++;
+       else
+               tsk->min_flt++;
 
        up_read(&mm->mmap_sem);
        return;
@@ -161,7 +160,7 @@ bad_area:
                if (exception_trace && printk_ratelimit())
                        printk("%s%s[%d]: segfault at %08lx pc %08lx "
                               "sp %08lx ecr %lu\n",
-                              is_init(tsk) ? KERN_EMERG : KERN_INFO,
+                              is_global_init(tsk) ? KERN_EMERG : KERN_INFO,
                               tsk->comm, tsk->pid, address, regs->pc,
                               regs->sp, ecr);
                _exception(SIGSEGV, regs, code, address);
@@ -190,6 +189,8 @@ no_context:
 
        page = sysreg_read(PTBR);
        printk(KERN_ALERT "ptbr = %08lx", page);
+       if (address >= TASK_SIZE)
+               page = (unsigned long)swapper_pg_dir;
        if (page) {
                page = ((unsigned long *)page)[address >> 22];
                printk(" pgd = %08lx", page);
@@ -210,14 +211,14 @@ no_context:
         */
 out_of_memory:
        up_read(&mm->mmap_sem);
-       if (is_init(current)) {
+       if (is_global_init(current)) {
                yield();
                down_read(&mm->mmap_sem);
                goto survive;
        }
        printk("VM: Killing process %s\n", tsk->comm);
        if (user_mode(regs))
-               do_exit(SIGKILL);
+               do_group_exit(SIGKILL);
        goto no_context;
 
 do_sigbus:
@@ -232,7 +233,7 @@ do_sigbus:
        if (exception_trace)
                printk("%s%s[%d]: bus error at %08lx pc %08lx "
                       "sp %08lx ecr %lu\n",
-                      is_init(tsk) ? KERN_EMERG : KERN_INFO,
+                      is_global_init(tsk) ? KERN_EMERG : KERN_INFO,
                       tsk->comm, tsk->pid, address, regs->pc,
                       regs->sp, ecr);