[lkml]   [2011]   [Jun]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 3/8] __ptrace_detach: avoid task_detached(), check do_notify_parent()
On Wed, Jun 22, 2011 at 11:08:53PM +0200, Oleg Nesterov wrote:
> __ptrace_detach() relies on the current obscure behaviour of
> do_notify_parent(tsk) which changes tsk->exit_signal if this child
> should be silently reaped. That is why we check task_detached(), it
> is true if the task is sub-thread, or it is the group_leader but
> its exit_signal was changed by do_notify_parent().
> This is confusing, change the code to rely on !thread_group_leader()
> or the value returned by do_notify_parent().
> Signed-off-by: Oleg Nesterov <>

This looks good to me.

Acked-by: Tejun Heo <>



 \ /
  Last update: 2011-06-23 15:27    [W:0.108 / U:6.204 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site