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authorDavid S. Miller <davem@davemloft.net>2008-07-27 04:40:08 -0700
committerDavid S. Miller <davem@davemloft.net>2008-07-27 04:40:08 -0700
commit15d3b4a26291c170563e2b25ded5de1324f93959 (patch)
tree9bea548a7de5215c58a091d58f4eefdb92349f2c /fs/proc/array.c
parent2c3abab7c95295f319dc8899b74cbd60140fcdfb (diff)
parent8be1a6d6c77ab4532e4476fdb8177030ef48b52c (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'fs/proc/array.c')
-rw-r--r--fs/proc/array.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/proc/array.c b/fs/proc/array.c
index 797d775e035..0d6eb33597c 100644
--- 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"