Add the necessary copy_process()->utrace_init_task() and
free_task()->utrace_free_task() calls.
Originally this was the part of "utrace core" patch, but since
tracehooks are dying it doesn't make sense to reintroduce them.
Instead, just call the utrace_ helpers directly. This is fine
even without CONFIG_UTRACE, gcc is smart enough to optimize out
the code in free_task().
Signed-off-by: Oleg Nesterov <o...@redhat.com>
---
kernel/fork.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/kernel/fork.c b/kernel/fork.c
index e7ceaca..a9891da 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -66,6 +66,7 @@
#include <linux/user-return-notifier.h>
#include <linux/oom.h>
#include <linux/khugepaged.h>
+#include <linux/utrace.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
@@ -167,6 +168,8 @@ void free_task(struct task_struct *tsk)
free_thread_info(tsk->stack);
rt_mutex_debug_task_free(tsk);
ftrace_graph_exit_task(tsk);
+ if (task_utrace_struct(tsk))
+ utrace_free_task(tsk);
free_task_struct(tsk);
}
EXPORT_SYMBOL(free_task);
@@ -1096,6 +1099,8 @@ static struct task_struct *copy_process(unsigned long
clone_flags,
if (!p)
goto fork_out;
+ utrace_init_task(p);
+
ftrace_graph_init_task(p);
rt_mutex_init_task(p);
--
1.5.5.1
