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);
 }