Merge tag 'xfs-4.12-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

[karo-tx-linux.git] / include / linux / ptrace.h

diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index 422bc2e4cb6a6fc47571d28cb0602d59477d7caf..ef3eb8bbfee482e04aa06c83b21fbc2ce02d50b3 100644 (file)
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -54,7 +54,8 @@ extern int ptrace_request(struct task_struct *child, long request,
                          unsigned long addr, unsigned long data);
 extern void ptrace_notify(int exit_code);
 extern void __ptrace_link(struct task_struct *child,
-                         struct task_struct *new_parent);
+                         struct task_struct *new_parent,
+                         const struct cred *ptracer_cred);
 extern void __ptrace_unlink(struct task_struct *child);
 extern void exit_ptrace(struct task_struct *tracer, struct list_head *dead);
 #define PTRACE_MODE_READ       0x01
@@ -206,7 +207,7 @@ static inline void ptrace_init_task(struct task_struct *child, bool ptrace)
 
        if (unlikely(ptrace) && current->ptrace) {
                child->ptrace = current->ptrace;
-               __ptrace_link(child, current->parent);
+               __ptrace_link(child, current->parent, current->ptracer_cred);
 
                if (child->ptrace & PT_SEIZED)
                        task_set_jobctl_pending(child, JOBCTL_TRAP_STOP);
@@ -215,6 +216,8 @@ static inline void ptrace_init_task(struct task_struct *child, bool ptrace)
 
                set_tsk_thread_flag(child, TIF_SIGPENDING);
        }
+       else
+               child->ptracer_cred = NULL;
 }
 
 /**