Introduce the empty inline tracehook_finish_jctl() helper called by
do_signal_stop() after wakeup.
Currently we lack the ability to report this state change.
Signed-off-by: Oleg Nesterov <o...@redhat.com>
---
include/linux/tracehook.h | 9 +++++++++
kernel/signal.c | 2 ++
2 files changed, 11 insertions(+)
--- __UTRACE/include/linux/tracehook.h~JCTL_1_TRACEHOOK 2009-07-28
22:59:03.000000000 +0200
+++ __UTRACE/include/linux/tracehook.h 2009-07-28 22:59:31.000000000 +0200
@@ -521,6 +521,15 @@ static inline int tracehook_notify_jctl(
return notify ?: (current->ptrace & PT_PTRACED) ? why : 0;
}
+/**
+ * tracehook_finish_jctl - report about return from job control stop
+ *
+ * This is called by do_signal_stop() after wakeup.
+ */
+static inline void tracehook_finish_jctl(void)
+{
+}
+
#define DEATH_REAP -1
#define DEATH_DELAYED_GROUP_LEADER -2
--- __UTRACE/kernel/signal.c~JCTL_1_TRACEHOOK 2009-07-28 21:39:31.000000000
+0200
+++ __UTRACE/kernel/signal.c 2009-07-28 23:02:00.000000000 +0200
@@ -1738,6 +1738,8 @@ static int do_signal_stop(int signr)
do {
schedule();
} while (try_to_freeze());
+
+ tracehook_finish_jctl();
/*
* Now we don't run again until continued.
*/
