linux-kernel - Re: [PATCH v2 7/11] Uprobes Implementation

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Date:	Tue, 11 May 2010 22:45:23 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
	Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Masami Hiramatsu <mhiramat@...hat.com>,
	Randy Dunlap <rdunlap@...otime.net>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Jim Keniston <jkenisto@...ux.vnet.ibm.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	"Frank Ch. Eigler" <fche@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Roland McGrath <roland@...hat.com>, Mel Gorman <mel@....ul.ie>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Hugh Dickins <hugh.dickins@...cali.co.uk>,
	Rik van Riel <riel@...hat.com>
Subject: Re: [PATCH v2 7/11] Uprobes Implementation

On Thu, 2010-04-22 at 17:40 +0200, Oleg Nesterov wrote:
> 
> Either way, I think register_uprobe() should disallow the probes in
> VM_SHARED/VM_MAYWRITE vmas. 

VM_SHARED, fully agreed, MAYWRITE not so sure, MAP_PRIVATE has MAYWRITE
iirc and its perfectly fine to poke at those.

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