Re: waitpid(WNOHANG) should report SIGCHLD-notified signals [Re:[PATCH 09/11] job control: reorganize wait_task_stopped()]

From: Jan Kratochvil
Date: Mon May 16 2011 - 08:39:55 EST

Hi Tejun,

On Mon, 16 May 2011 14:27:56 +0200, Tejun Heo wrote:
> On Mon, May 16, 2011 at 02:11:16PM +0200, Jan Kratochvil wrote:
> > It cannot as various GDB-supported platforms do not support threads properly.
> > And you want to have a common codebase to get it will supported.
> >
> > Besides that it is a matter of coding style, I perfer "poll() model" even on
> > threads-supporting GNU/Linux.
> The above wouldn't be linux kernel's top design concerns, right?

They are - as without threads one needs reliable WNOHANG - while which you say
it is not reliable.

> It's not like new interface is gonna break that, but I think it's gonna be
> more fragile. Well, it shouldn't be worse than now.

BTW I really do not think this WNOHANG issue is anyhow related to this whole

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