linux-kernel - Re: [PATCH]: exec: avoid propagating PF_NO

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20131127183117.GB13098@mtj.dyndns.org>
Date:	Wed, 27 Nov 2013 13:31:17 -0500
From:	Tejun Heo <htejun@...il.com>
To:	zhang.yi20@....com.cn
Cc:	Oleg Nesterov <oleg@...hat.com>,
	lkml <linux-kernel@...r.kernel.org>,
	Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
	Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH]: exec: avoid propagating PF_NO_SETAFFINITY into
 userspace child

On Wed, Nov 27, 2013 at 10:07:03AM +0800, zhang.yi20@....com.cn wrote:
> Userspace process doesn't want the PF_NO_SETAFFINITY, but its parent may be
> a kernel worker thread which has PF_NO_SETAFFINITY set, and this worker thread
> can do kernel_thread() to create the child.
> Clearing this flag in usersapce child to enable its migrating capability.
> 
> 
> Signed-off-by: Zhang Yi <zhang.yi20@....com.cn>

Acked-by: Tejun Heo <tj@...nel.org>

cc'ing Ingo and Peter.  Ingo, I think this one doesn't really suit the
workqueue tree.  Can you please pick this one up w/ Oleg's ack added
and stable cc'd?  The original patch is

  http://article.gmane.org/gmane.linux.kernel/1602429/raw

Thanks!

-- 
tejun
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/