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: <20141125.132445.152609149279137368.davem@davemloft.net>
Date:	Tue, 25 Nov 2014 13:24:45 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	paulmck@...ux.vnet.ibm.com
Cc:	rdunlap@...radead.org, pieter@...sman.nl, josh@...htriplett.org,
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Subject: Re: [PATCH v4 0/7] kernel tinification: optionally compile out
 splice family of syscalls (splice, vmsplice, tee and sendfile)

From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Date: Tue, 25 Nov 2014 10:10:32 -0800

> I certainly sympathize with this concern, given the importance of software
> portability.  However, the tiny-hardware alternative appears ot some sort
> of special-purpose embedded OS, which most definitely will suffer from
> software compatibility issues.  I guess that the good news is that much
> of the tiny hardware that used to be 8 or 16 bits is now 32 bits, which
> means that it has at least some chance of running some form of Linux.  ;-)

And then if some fundamental part of userland (glibc, klibc, etc.) finds
a useful way to use splice for a fundamental operation, we're back to
square one.

I simply do not agree with modifying the user facing interface, especially
one with decades of precedence.
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