/*
* Memory hotplug specific functions
*/
-void online_page(struct page *page)
-{
- ClearPageReserved(page);
- init_page_count(page);
- __free_page(page);
- totalram_pages++;
- num_physpages++;
-}
-
#ifdef CONFIG_MEMORY_HOTPLUG
/*
* Memory is added always to NORMAL zone. This means you will never get
void mark_rodata_ro(void)
{
unsigned long start = PFN_ALIGN(_stext), end = PFN_ALIGN(__end_rodata);
+ unsigned long rodata_start =
+ ((unsigned long)__start_rodata + PAGE_SIZE - 1) & PAGE_MASK;
+
+#ifdef CONFIG_DYNAMIC_FTRACE
+ /* Dynamic tracing modifies the kernel text section */
+ start = rodata_start;
+#endif
printk(KERN_INFO "Write protecting the kernel read-only data: %luk\n",
(end - start) >> 10);
* The rodata section (but not the kernel text!) should also be
* not-executable.
*/
- start = ((unsigned long)__start_rodata + PAGE_SIZE - 1) & PAGE_MASK;
- set_memory_nx(start, (end - start) >> PAGE_SHIFT);
+ set_memory_nx(rodata_start, (end - rodata_start) >> PAGE_SHIFT);
rodata_test();