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Date: Tue, 21 Jun 2011 09:19:34 +1000 (EST)
From: James Morris <>
To: Vasiliy Kulikov <>
        "Eric W. Biederman" <>
Subject: Re: [RFC 2/5 v4] procfs: add hidepid= and gid= mount options

On Mon, 20 Jun 2011, Vasiliy Kulikov wrote:

> > If they depend on specific permissions, yes.
> Could you please then clarify why does this patch changes
> pid_revalidate() behaviour:
> It changes files permissions to allow userspace apps to quickly stat
> files, not looking into /proc/PID/status.  So, uid and gid are explicit
> ABI.  Breaking procfs uid/gid attributes would break these apps.

Right, but I'm saying that apps which depend on specific permissions are 
broken, which is not the uid / gid attributes.

James Morris

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