linux-kernel - wait_task_zombie plus WNOWAIT question

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Message-ID: <87eit0h66p.wl%vmayatsk@redhat.com>
Date:	Wed, 01 Jul 2009 15:41:02 +0200
From:	Vitaly Mayatskikh <v.mayatskih@...il.com>
To:	Roland McGrath <roland@...hat.com>
Cc:	Oleg Nesterov <oleg@...hat.com>, linux-kernel@...r.kernel.org
Subject: wait_task_zombie plus WNOWAIT question

Hi!

I'm working on (sigh) next version of wait_task_* cleanups and stuck
in wait_task_zombie. I'm trying to move put_user(stat, wo->wo_stat)
code from all wait_task_* functions to common place, but
wait_task_zombie does not fill wo_stat if WNOWAIT flag is set and does
it w/o that flag. Is it done so by design, or I can make
user-visible change and add put_user in WNOWAIT path?

Thanks!
-- 
wbr, Vitaly
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