aboutsummaryrefslogtreecommitdiffstats
path: root/arch/x86/mm/init_32.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/mm/init_32.c')
-rw-r--r--arch/x86/mm/init_32.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 029e8cffca9e..9689a5138e64 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -1035,6 +1035,8 @@ void mark_rodata_ro(void)
1035 unsigned long start = PFN_ALIGN(_text); 1035 unsigned long start = PFN_ALIGN(_text);
1036 unsigned long size = PFN_ALIGN(_etext) - start; 1036 unsigned long size = PFN_ALIGN(_etext) - start;
1037 1037
1038#ifndef CONFIG_DYNAMIC_FTRACE
1039 /* Dynamic tracing modifies the kernel text section */
1038 set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT); 1040 set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT);
1039 printk(KERN_INFO "Write protecting the kernel text: %luk\n", 1041 printk(KERN_INFO "Write protecting the kernel text: %luk\n",
1040 size >> 10); 1042 size >> 10);
@@ -1047,6 +1049,8 @@ void mark_rodata_ro(void)
1047 printk(KERN_INFO "Testing CPA: write protecting again\n"); 1049 printk(KERN_INFO "Testing CPA: write protecting again\n");
1048 set_pages_ro(virt_to_page(start), size>>PAGE_SHIFT); 1050 set_pages_ro(virt_to_page(start), size>>PAGE_SHIFT);
1049#endif 1051#endif
1052#endif /* CONFIG_DYNAMIC_FTRACE */
1053
1050 start += size; 1054 start += size;
1051 size = (unsigned long)__end_rodata - start; 1055 size = (unsigned long)__end_rodata - start;
1052 set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT); 1056 set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT);