diff options
| -rw-r--r-- | include/trace/syscall.h | 15 | ||||
| -rw-r--r-- | kernel/fork.c | 2 |
2 files changed, 17 insertions, 0 deletions
diff --git a/include/trace/syscall.h b/include/trace/syscall.h index 31966a4fb8c..51b72d8a849 100644 --- a/include/trace/syscall.h +++ b/include/trace/syscall.h @@ -4,6 +4,7 @@ #include <linux/tracepoint.h> #include <linux/unistd.h> #include <linux/ftrace_event.h> +#include <linux/thread_info.h> #include <asm/ptrace.h> @@ -54,4 +55,18 @@ int perf_sysexit_enable(struct ftrace_event_call *call); void perf_sysexit_disable(struct ftrace_event_call *call); #endif +#if defined(CONFIG_TRACEPOINTS) && defined(CONFIG_HAVE_SYSCALL_TRACEPOINTS) +static inline void syscall_tracepoint_update(struct task_struct *p) +{ + if (test_thread_flag(TIF_SYSCALL_TRACEPOINT)) + set_tsk_thread_flag(p, TIF_SYSCALL_TRACEPOINT); + else + clear_tsk_thread_flag(p, TIF_SYSCALL_TRACEPOINT); +} +#else +static inline void syscall_tracepoint_update(struct task_struct *p) +{ +} +#endif + #endif /* _TRACE_SYSCALL_H */ diff --git a/kernel/fork.c b/kernel/fork.c index afac42b8889..621c547dabb 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1441,7 +1441,9 @@ static struct task_struct *copy_process(unsigned long clone_flags, total_forks++; spin_unlock(¤t->sighand->siglock); + syscall_tracepoint_update(p); write_unlock_irq(&tasklist_lock); + proc_fork_connector(p); cgroup_post_fork(p); if (clone_flags & CLONE_THREAD) |