From: "H. Peter Anvin" <hpa@zytor.com>
To: Matt Dainty <matt@bodgit-n-scarper.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>,
Richard Gooch <rgooch@ras.ucalgary.ca>
Subject: Re: [PATCH] DevFS support for /dev/cpu/X/(cpuid|msr)
Date: Sun, 06 Jan 2002 13:08:54 -0800 [thread overview]
Message-ID: <3C38BCE6.3030302@zytor.com> (raw)
In-Reply-To: <20020106181749.A714@butterlicious.bodgit-n-scarper.com> <200201061934.g06JYnZ15633@vindaloo.ras.ucalgary.ca> <20020106204311.C2596@butterlicious.bodgit-n-scarper.com>
Matt Dainty wrote:
> Okey dokey,
>
> Please find attached a second, better patch to add devfs support to the i386
> cpuid and msr drivers. Now it doesn't nuke the cpu/X directories on
> unloading and only enumerates CPUs based on smp_num_cpus instead of NR_CPUS.
>
If you don't understand why this is idiotic, then let me enlighten you:
there is no sensible reason why /dev/cpu/%d should only be populated
after having run a CPU-dependent device driver. /dev/cpu/%d should be
always populated; heck, that's the only way you can sensibly handle
hotswapping CPUs.
I WILL NOT accept a patch as long as devfs is as fucked in the head as
it currently is. Unfortunately, that seems like it will be a long long
time.
-hpa
next prev parent reply other threads:[~2002-01-06 21:09 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-01-08 11:13 Matt Dainty
2002-01-06 18:17 ` Matt Dainty
2002-01-06 19:34 ` Richard Gooch
2002-01-06 20:43 ` Matt Dainty
2002-01-06 21:08 ` H. Peter Anvin [this message]
2002-01-06 21:11 ` Richard Gooch
2002-01-06 21:12 ` H. Peter Anvin
2002-01-06 21:06 ` H. Peter Anvin
2002-01-06 21:08 ` Richard Gooch
2002-01-06 21:10 ` H. Peter Anvin
2002-01-06 21:36 ` Russell King
2002-01-07 0:44 ` H. Peter Anvin
2002-01-07 1:31 ` Richard Gooch
2002-01-07 1:32 ` H. Peter Anvin
2002-01-07 1:40 ` Richard Gooch
2002-01-07 1:44 ` H. Peter Anvin
2002-01-08 9:14 ` Rusty Russell
2002-01-08 12:02 ` Matt Dainty
2002-01-08 17:17 ` H. Peter Anvin
2002-01-08 17:35 ` Richard Gooch
2002-01-09 1:01 ` Rusty Russell
2002-01-09 3:16 ` H. Peter Anvin
2002-01-09 3:28 ` Rusty Russell
2002-01-09 3:30 ` Richard Gooch
2002-01-09 3:47 ` H. Peter Anvin
2002-01-09 5:41 ` Richard Gooch
2002-02-18 10:50 Ishan Jayawardena
2002-02-18 18:25 ` Richard Gooch
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