linux-kernel - Re: [PATCH] sysctl: Undeprecate sys

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Date:	Sat, 11 Nov 2006 08:04:46 +0000
From:	Russell King <rmk+lkml@....linux.org.uk>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	Alistair John Strachan <s0348365@....ed.ac.uk>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] sysctl: Undeprecate sys_sysctl

On Fri, Nov 10, 2006 at 01:13:16AM -0700, Eric W. Biederman wrote:
> Russell King <rmk+lkml@....linux.org.uk> writes:
> > Let's not forget that on ARM it's used to get the MMIO region which
> > is used for PIO emulation by glibc.  Without it, glibc can't detect
> > where this region is.
> 
> Is that on all subarches or just some of them?

No idea - I don't have that sort of information.  Those which are PCI
based have the potential to use it if some userspace programmer wants
to use the ioperm/inb/outb etc which glibc provides.

I have had the occasional bug report that these functions haven't
worked when we haven't been exporting the right info via sysctl, so
they do seem to get used.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:  2.6 Serial core
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