x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests

[mirror_ubuntu-bionic-kernel.git] / kernel / extable.c

diff --git a/kernel/extable.c b/kernel/extable.c
index 9aa1cc41ecf79c8c2cc5fb9dbd3fbd418025c0dd..a17fdb63dc3e470955dcfd5e5861920b9db2749f 100644 (file)
--- a/kernel/extable.c
+++ b/kernel/extable.c
@@ -31,6 +31,8 @@
  * mutex protecting text section modification (dynamic code patching).
  * some users need to sleep (allocating memory...) while they hold this lock.
  *
+ * Note: Also protects SMP-alternatives modification on x86.
+ *
  * NOT exported to modules - patching kernel text is a really delicate matter.
  */
 DEFINE_MUTEX(text_mutex);