Merge branch 'core/percpu' into stackprotector

Conflicts:
	arch/x86/include/asm/pda.h
	arch/x86/include/asm/system.h

Also, moved include/asm-x86/stackprotector.h to arch/x86/include/asm.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 7 insertions, 19 deletions

diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 4c056b5d6a95..37242c405f16 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -535,7 +535,7 @@ static int vmalloc_fault(unsigned long address)
            happen within a race in page table update. In the later
            case just flush. */
 
-        pgd = pgd_offset(current->mm ?: &init_mm, address);
+        pgd = pgd_offset(current->active_mm, address);
         pgd_ref = pgd_offset_k(address);
         if (pgd_none(*pgd_ref))
                 return -1;
@@ -670,7 +670,6 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
         if (unlikely(in_atomic() || !mm))
                 goto bad_area_nosemaphore;
 
-again:
         /*
          * When running in the kernel we expect faults to occur only to
          * addresses in user space.  All other faults represent errors in the
@@ -866,25 +865,14 @@ no_context:
         oops_end(flags, regs, sig);
 #endif
 
-/*
- * We ran out of memory, or some other thing happened to us that made
- * us unable to handle the page fault gracefully.
- */
 out_of_memory:
+        /*
+         * We ran out of memory, call the OOM killer, and return the userspace
+         * (which will retry the fault, or kill us if we got oom-killed).
+         */
         up_read(&mm->mmap_sem);
-        if (is_global_init(tsk)) {
-                yield();
-                /*
-                 * Re-lookup the vma - in theory the vma tree might
-                 * have changed:
-                 */
-                goto again;
-        }
-
-        printk("VM: killing process %s\n", tsk->comm);
-        if (error_code & PF_USER)
-                do_group_exit(SIGKILL);
-        goto no_context;
+        pagefault_out_of_memory();
+        return;
 
 do_sigbus:
         up_read(&mm->mmap_sem);