Revert most of "x86: Fix alternatives and kprobes to remap write-protected kernel...

[pandora-kernel.git] / arch / i386 / mm / init.c

diff --git a/arch/i386/mm/init.c b/arch/i386/mm/init.c
index 1b1a1e6..4c4809f 100644 (file)
--- a/arch/i386/mm/init.c
+++ b/arch/i386/mm/init.c
@@ -800,9 +800,17 @@ void mark_rodata_ro(void)
        unsigned long start = PFN_ALIGN(_text);
        unsigned long size = PFN_ALIGN(_etext) - start;
 
-       change_page_attr(virt_to_page(start),
-                        size >> PAGE_SHIFT, PAGE_KERNEL_RX);
-       printk("Write protecting the kernel text: %luk\n", size >> 10);
+#ifndef CONFIG_KPROBES
+#ifdef CONFIG_HOTPLUG_CPU
+       /* It must still be possible to apply SMP alternatives. */
+       if (num_possible_cpus() <= 1)
+#endif
+       {
+               change_page_attr(virt_to_page(start),
+                                size >> PAGE_SHIFT, PAGE_KERNEL_RX);
+               printk("Write protecting the kernel text: %luk\n", size >> 10);
+       }
+#endif
        start += size;
        size = (unsigned long)__end_rodata - start;
        change_page_attr(virt_to_page(start),