tracehook: tracehook_tracer_task

[linux-2.6-omap-h63xx.git] / fs / proc / array.c

diff --git a/fs/proc/array.c b/fs/proc/array.c
index 797d775e0354fca502c8ab439c4e986c8e27d237..0d6eb33597c6627f24586407f7e0a820454b3612 100644 (file)
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -80,6 +80,7 @@
 #include <linux/delayacct.h>
 #include <linux/seq_file.h>
 #include <linux/pid_namespace.h>
+#include <linux/tracehook.h>
 
 #include <asm/pgtable.h>
 #include <asm/processor.h>
@@ -168,8 +169,12 @@ static inline void task_state(struct seq_file *m, struct pid_namespace *ns,
        rcu_read_lock();
        ppid = pid_alive(p) ?
                task_tgid_nr_ns(rcu_dereference(p->real_parent), ns) : 0;
-       tpid = pid_alive(p) && p->ptrace ?
-               task_pid_nr_ns(rcu_dereference(p->parent), ns) : 0;
+       tpid = 0;
+       if (pid_alive(p)) {
+               struct task_struct *tracer = tracehook_tracer_task(p);
+               if (tracer)
+                       tpid = task_pid_nr_ns(tracer, ns);
+       }
        seq_printf(m,
                "State:\t%s\n"
                "Tgid:\t%d\n"