linux-kernel - Re: [RFC] fs, proc: Introduce the /proc/<pid>/map

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Message-ID: <20110825181331.GG6387@sun>
Date:	Thu, 25 Aug 2011 22:13:31 +0400
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	Vasiliy Kulikov <segoon@...nwall.com>
Cc:	Nathan Lynch <ntl@...ox.com>, Oren Laadan <orenl@...columbia.edu>,
	Daniel Lezcano <dlezcano@...ibm.com>,
	Tejun Heo <tj@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Pavel Emelyanov <xemul@...allels.com>,
	linux-kernel@...r.kernel.org,
	James Bottomley <jbottomley@...allels.com>,
	LINUXFS-ML <linux-fsdevel@...r.kernel.org>,
	containers@...ts.osdl.org, Zan Lynx <zlynx@....org>,
	Andi Kleen <andi@...stfloor.org>
Subject: Re: [RFC] fs, proc: Introduce the /proc/<pid>/map_files/ directory v2

On Thu, Aug 25, 2011 at 09:54:38PM +0400, Vasiliy Kulikov wrote:
...
> > > 
> > 
> > Don't think so, it should point that permission failed
> > rather no such entry. Or this might break some tools?
> 
> I mean the place exactly where I've put it to indicate simple_strtoul(),
> get_task_mm(), or find_exact_vma() error.  EPERM for ptrace_may_access()
> is OK.
> 

Ah, yeah! ENOENT is really would be correct option here, will fix in next
iteration, thanks a huge for spotting it!

	Cyrill
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