1 files changed, 10 insertions, 2 deletions

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 4b507c089402..5198b9bb34ef 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -700,7 +700,7 @@ int kernel_set_to_readonly;
 void set_kernel_text_rw(void)
 {
         unsigned long start = PFN_ALIGN(_text);
-        unsigned long end = PFN_ALIGN(__start_rodata);
+        unsigned long end = PFN_ALIGN(__stop___ex_table);
 
         if (!kernel_set_to_readonly)
                 return;
@@ -708,13 +708,18 @@ void set_kernel_text_rw(void)
         pr_debug("Set kernel text: %lx - %lx for read write\n",
                  start, end);
 
+        /*
+         * Make the kernel identity mapping for text RW. Kernel text
+         * mapping will always be RO. Refer to the comment in
+         * static_protections() in pageattr.c
+         */
         set_memory_rw(start, (end - start) >> PAGE_SHIFT);
 }
 
 void set_kernel_text_ro(void)
 {
         unsigned long start = PFN_ALIGN(_text);
-        unsigned long end = PFN_ALIGN(__start_rodata);
+        unsigned long end = PFN_ALIGN(__stop___ex_table);
 
         if (!kernel_set_to_readonly)
                 return;
@@ -722,6 +727,9 @@ void set_kernel_text_ro(void)
         pr_debug("Set kernel text: %lx - %lx for read only\n",
                  start, end);
 
+        /*
+         * Set the kernel identity mapping for text RO.
+         */
         set_memory_ro(start, (end - start) >> PAGE_SHIFT);
 }