linux-kernel - Re: [PATCH] proc: revert to show stack information in /proc/{pid}/status

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Message-Id: <20100108091658.C127.A69D9226@jp.fujitsu.com>
Date:	Fri,  8 Jan 2010 09:21:30 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	kosaki.motohiro@...fujitsu.com,
	LKML <linux-kernel@...r.kernel.org>,
	Stefani Seibold <stefani@...bold.net>,
	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Alexey Dobriyan <adobriyan@...il.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Randy Dunlap <randy.dunlap@...cle.com>
Subject: Re: [PATCH] proc: revert to show stack information in /proc/{pid}/status

> On Thu, 31 Dec 2009 23:12:22 +0900 (JST)
> KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> wrote:
> 
> > Thus, this patch revert it.
> 
> OK, thanks, I applied the full revert.
> 
> We can look at a new and less costly implementation of this feature for
> 2.6.34 if desired.  In which case, all we have done is to delay the feature
> by one release, which is not a big deal.

Thanks.

note: my patch isn't full revert too. Commit d899bf7b introduced two
feature (btw, I don't like one patch have two feature).

 1) Add the annotattion of [thread stack: xxxx] mark to
    /proc/{pid}/task/{tid}/maps.
 2) Add StackUsage field to /proc/{pid}/status.

I only revert (2), because I haven't seen (1) cause regression.



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