linux-kernel - Re: [PATCH v4 0/7] kernel tinification: optionally compile out splice family of syscalls (splice, vmsplice, tee and sendfile)

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Message-ID: <20141126121903.5231c854@lxorguk.ukuu.org.uk>
Date:	Wed, 26 Nov 2014 12:19:03 +0000
From:	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>
To:	David Miller <davem@...emloft.net>
Cc:	josh@...htriplett.org, rdunlap@...radead.org, pieter@...sman.nl,
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Subject: Re: [PATCH v4 0/7] kernel tinification: optionally compile out
 splice family of syscalls (splice, vmsplice, tee and sendfile)

On Tue, 25 Nov 2014 14:04:41 -0500 (EST)
David Miller <davem@...emloft.net> wrote:

> 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.

Try running an original MCC Linux binary and C lib on a current kernel

We've put *entire binary formats* behind a config option. We've put older
syscalls behind it, we've put sysfs behind it, sysctl behind it, the
older microcode interfaces behind it, ISA bus as a concept behind
options. VDSO, IPC, even 32bit support ... the list goes on and on.

I'd say those were far more generic on the whole than splice/sendfile.

Alan
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