From: Tim Hockin <thockin@sun.com>
To: Jeff Sipek <jeffpc@optonline.net>
Cc: Jamie Lokier <jamie@shareable.org>,
Linux Kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: sysconf - exposing constants to userspace
Date: Thu, 19 Feb 2004 16:34:55 -0800 [thread overview]
Message-ID: <20040220003455.GI9155@sun.com> (raw)
In-Reply-To: <200402191929.54604.jeffpc@optonline.net>
On Thu, Feb 19, 2004 at 07:29:45PM -0500, Jeff Sipek wrote:
> If I understand the original post correctly, the numbers that we don't make
> available to userspace are compile time constants. For example, since I can't
> think of anything better, NR_CPUS. It is set during the config process, but
> one cannot read the number from userspace while running that kernel. I know
> that there are better examples, but I just can't think of any at the moment.
>
> If I missed the point of the original post, please ignore me.
No, you got it. BUt I was specifically thinking of POSIX sysconf stuff,
like NGROUPS_MAX. See <linux/limits.h>.
--
Tim Hockin
Sun Microsystems, Linux Software Engineering
thockin@sun.com
All opinions are my own, not Sun's
next prev parent reply other threads:[~2004-02-20 0:48 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-19 20:48 sysconf - exposing constants to userspace Tim Hockin
2004-02-19 21:30 ` Jeff Sipek
2004-02-20 0:20 ` Jamie Lokier
2004-02-20 0:21 ` Tim Hockin
2004-02-20 0:35 ` Chris Wright
2004-02-20 0:29 ` Jeff Sipek
2004-02-20 0:34 ` Tim Hockin [this message]
2004-02-20 0:52 ` Chris Wright
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