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authorOleg Nesterov <oleg@redhat.com>2013-07-03 15:08:35 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-03 16:08:03 -0700
commit266b7a021f7dcc4d4531961a47f4ef74c3c4ab6b (patch)
treeb7c5a2ada9b2b4cbab15b23b5b3b6922e2fd1f4b
parentbd9d43f47d6944019918a801398c587ee86c4b52 (diff)
downloadop-kernel-dev-266b7a021f7dcc4d4531961a47f4ef74c3c4ab6b.zip
op-kernel-dev-266b7a021f7dcc4d4531961a47f4ef74c3c4ab6b.tar.gz
fs/exec.c:de_thread: mt-exec should update ->real_start_time
924b42d5 ("Use boot based time for process start time and boot time in /proc") updated copy_process/do_task_stat but forgot about de_thread(). This breaks "ps axOT" if a sub-thread execs. Note: I think that task->start_time should die. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: John Stultz <johnstul@us.ibm.com> Cc: Tomas Janousek <tjanouse@redhat.com> Cc: Tomas Smetana <tsmetana@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--fs/exec.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/exec.c b/fs/exec.c
index 396aec2..9c73def 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -932,6 +932,7 @@ static int de_thread(struct task_struct *tsk)
* also take its birthdate (always earlier than our own).
*/
tsk->start_time = leader->start_time;
+ tsk->real_start_time = leader->real_start_time;
BUG_ON(!same_thread_group(leader, tsk));
BUG_ON(has_group_leader_pid(tsk));
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