Add comment for x86_sregs

2017-07-03 10:42:45 +09:00
parent 72b8f99d3b
commit e64bd49d9e
1 changed files with 1 additions and 0 deletions
--- a/arch/x86/kernel/include/registers.h
+++ b/arch/x86/kernel/include/registers.h
@@ -215,6 +215,7 @@ struct x86_sregs {
 *   bit 4 ==	1: fault was an instruction fetch
 *
 *   internal use:
+ *   bit 29 ==  1: Make PF map text modified by ptrace_poketext()
 *   bit 30 ==	1: don't use COW page to resolve page fault.
 */
 enum x86_pf_error_code {