x86: printk kernel version in WARN_ON and other dump_stack users

[linux-2.6] / arch / powerpc / mm / fault.c

diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index 3767211b3d0f665e0666dcfcea246009c1d159ed..8135da06e0a44e4e320e7157e3b9fec364e67793 100644 (file)
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -283,7 +283,13 @@ good_area:
                /* protection fault */
                if (error_code & DSISR_PROTFAULT)
                        goto bad_area;
-               if (!(vma->vm_flags & VM_EXEC))
+               /*
+                * Allow execution from readable areas if the MMU does not
+                * provide separate controls over reading and executing.
+                */
+               if (!(vma->vm_flags & VM_EXEC) &&
+                   (cpu_has_feature(CPU_FTR_NOEXECUTE) ||
+                    !(vma->vm_flags & (VM_READ | VM_WRITE))))
                        goto bad_area;
 #else
                pte_t *ptep;
@@ -303,7 +309,7 @@ good_area:
                                        set_bit(PG_arch_1, &page->flags);
                                }
                                pte_update(ptep, 0, _PAGE_HWEXEC);
-                               _tlbie(address);
+                               _tlbie(address, mm->context.id);
                                pte_unmap_unlock(ptep, ptl);
                                up_read(&mm->mmap_sem);
                                return 0;
@@ -369,7 +375,7 @@ bad_area_nosemaphore:
  */
 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;