Re: [PATCH 6/6] clone4: Introduce new CLONE_FD flag to get task exit notification via fd

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Sat, Mar 14, 2015 at 11:38:29AM -0700, Thiago Macieira wrote:
> On Saturday 14 March 2015 15:32:35 Oleg Nesterov wrote:
> > It is not clear to me what do_wait() should do with ->autoreap child, even
> > ignoring ptrace.
> > 
> > Just suppose that real_parent has a single "autoreap" child. Should
> > wait(NULL) hanf then?
> 
> It should ignore the child that is set to autoreap. wait(NULL) should return -
> ECHILD, indicating there are no children waiting to be reaped.

Right.  And I don't think the current code does this.  I think we need
to change wait_consider_task to early-return for ->autoreap just as it
does for task_state == EXIT_DEAD.  I'll do that in v2.

- Josh Triplett
--
To unsubscribe from this list: send the line "unsubscribe linux-api" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux