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Message-Id: <20141125.142741.1620673255148724338.davem@davemloft.net>
Date:	Tue, 25 Nov 2014 14:27:41 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	ebiederm@...ssion.com
Cc:	josh@...htriplett.org, rdunlap@...radead.org, pieter@...sman.nl,
	alexander.h.duyck@...el.com, viro@...iv.linux.org.uk,
	ast@...mgrid.com, akpm@...ux-foundation.org, beber@...eeweb.net,
	catalina.mocanu@...il.com, dborkman@...hat.com,
	edumazet@...gle.com, fabf@...net.be,
	fuse-devel@...ts.sourceforge.net, geert@...ux-m68k.org,
	hughd@...gle.com, iulia.manda21@...il.com, JBeulich@...e.com,
	bfields@...ldses.org, jlayton@...chiereds.net,
	linux-api@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-nfs@...r.kernel.org,
	mcgrof@...e.com, mattst88@...il.com, mgorman@...e.de,
	mst@...hat.com, miklos@...redi.hu, netdev@...r.kernel.org,
	oleg@...hat.com, Paul.Durrant@...rix.com,
	paulmck@...ux.vnet.ibm.com, pefoley2@...oley.com, tgraf@...g.ch,
	therbert@...gle.com, trond.myklebust@...marydata.com,
	willemb@...gle.com, xiaoguangrong@...ux.vnet.ibm.com,
	zhenglong.cai@...c.com.cn
Subject: Re: [PATCH v4 0/7] kernel tinification: optionally compile out
 splice family of syscalls (splice, vmsplice, tee and sendfile)

From: ebiederm@...ssion.com (Eric W. Biederman)
Date: Tue, 25 Nov 2014 13:16:44 -0600

> David Miller <davem@...emloft.net> writes:
> 
>> From: josh@...htriplett.org
>> Date: Tue, 25 Nov 2014 10:53:10 -0800
>>
>>> It's not a "slippery slope"; it's been our standard practice for ages.
>>
>> We've never put an entire class of generic system calls behind
>> a config option.
> 
> CONFIG_SYSVIPC has been in the kernel as long as I can remember.
> 
> I seem to remember a plan to remove that code once userspace had
> finished migrating to more unixy interfaces to ipc.  But in 20 years
> that migration does does not seem to have finished, or even look
> like it ever will.
> 
> But if we started a slippery slope it was long long ago.

Fair enough.

Would be amusing if these tiny systems have it enabled.
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