linux-kernel - Re: 2.6.24-rc3: find complains about /proc/net

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Message-ID: <m1y7cspgpn.fsf@ebiederm.dsl.xmission.com>
Date:	Tue, 20 Nov 2007 17:47:32 -0700
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Roland McGrath <roland@...hat.com>
Cc:	Ingo Molnar <mingo@...e.hu>, Ulrich Drepper <drepper@...hat.com>,
	Guillaume Chazarain <guichaz@...oo.fr>,
	Pavel Emelyanov <xemul@...nvz.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>, Pavel Machek <pavel@....cz>,
	kernel list <linux-kernel@...r.kernel.org>,
	netdev <netdev@...r.kernel.org>
Subject: Re: 2.6.24-rc3: find complains about /proc/net

Roland McGrath <roland@...hat.com> writes:

>> can you see any danger to providing a /proc/self_task/ link? (or can you 
>> think of a better name/API/approach)
>
> That is a poor name to choose given /proc/self/task exists as something
> else (just try writing a sentence comparing them and then read it aloud).
> Probably /proc/self/task/self is what makes the most sense structurally.
> I don't know if it matters to whatever use you are concerned with to have
> two more steps in the lookup.

Well the only case it could matter is if you aren't allowed to access
/proc/<tgid> which I think may actually be the current selinux behavior.

So if we can't fix /proc/self we need to introduce /proc/task-self at
the top level, just to be certain we don't run into weird cases like
that.  Otherwise /proc/self/task/self sounds like a wonderful suggestion.

Eric
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