linux-kernel - Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space visible fashion.

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Message-ID: <m1d4x0zvri.fsf@ebiederm.dsl.xmission.com>
Date:	Sun, 02 Sep 2007 13:56:33 -0600
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Rob Landley <rob@...dley.net>
Cc:	"H. Peter Anvin" <hpa@...or.com>, Andi Kleen <andi@...stfloor.org>,
	Christoph Hellwig <hch@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space visible fashion.

Rob Landley <rob@...dley.net> writes:
>
> If you're going to add a new api, you might as well go with the sysctl-by-name 
> patch above, which looks reasonably small and simple to me from a very quick 
> glance at a 2.6.0-era patch.
>
> The advantage of breaking /proc/sys into a separate filesystem doesn't 
> introduce a new API (although possibly a new line in the init scripts), so 
> existing software doesn't have to change to use it, which is good.  It 
> increases orthogonality and granularity, which embedded guys like me are 
> generally in favor of. :)

- I think sysctlfs makes sense.
- I think all that is left is superblock handling and some backward
  compatibility magic. (Using the follow_link trick to automatically
  mount /proc/sys)

All of the rest of the code pretty much lives in fs/proc/proc_sysctl.c
already.

I have some other priorities to deal with first but if no one does the
work before I get there I will probably implement that eventually.

Eric
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