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Subject: Re: [PATCH] proc: revert to show stack information in 
 /proc/{pid}/status
From: Stefani Seibold <stefani@seibold.net>
To: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Samuel Thibault <samuel.thibault@ens-lyon.org>,
       LKML <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@elte.hu>,
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Date: Sat, 02 Jan 2010 09:26:16 +0100
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Am Samstag, den 02.01.2010, 14:53 +0900 schrieb KOSAKI Motohiro:
> 2010/1/2 Stefani Seibold <stefani@seibold.net>:
> > Am Freitag, den 01.01.2010, 23:05 +0100 schrieb Samuel Thibault:
> >> Stefani Seibold, le Fri 01 Jan 2010 16:10:16 +0100, a ?crit :
> >> > But ps is not a performance critical application nor a cat
> >> > /proc/*/status!
> >>
> >> Errr, maybe not so much as some other operations, but a lot of tools use
> >> them, so it's really worth considering it.
> >
> > Right. And i am still trying to find some optimization. Stay tuned.
> 
> I can understand you feel sad. but don't worry. reverting is very usual event
> on kernel development. You can retry anytime if you make optimized code.

I had analyzed the problem and there is only one solution. Create a new
proc/<pid>/stack_usage entry, which was my first idea. This has absolut
now side effects.

I will write a patch and post it in the next days.

Stefani


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