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From: Andi Kleen <ak@suse.de>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: Andi Kleen <ak@suse.de>, David Weinehall <tao@acc.umu.se>,
	Alan Cox <alan@lxorguk.ukuu.org.uk>,
	David Howells <dhowells@cambridge.redhat.com>,
	Andrew Morton <andrewm@uow.edu.au>, Ben LaHaise <bcrl@redhat.com>,
	Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] i386 rw_semaphores fix
Date: Wed, 11 Apr 2001 03:23:54 +0200	[thread overview]
Message-ID: <20010411032354.A29422@gruyere.muc.suse.de> (raw)
In-Reply-To: <20010411030739.A29277@gruyere.muc.suse.de> <Pine.LNX.4.31.0104101809260.15069-100000@penguin.transmeta.com>
In-Reply-To: <Pine.LNX.4.31.0104101809260.15069-100000@penguin.transmeta.com>; from torvalds@transmeta.com on Tue, Apr 10, 2001 at 06:12:12PM -0700

On Tue, Apr 10, 2001 at 06:12:12PM -0700, Linus Torvalds wrote:
> 
> 
> On Wed, 11 Apr 2001, Andi Kleen wrote:
> >
> > Fixup for user space is probably not that nice (CMPXCHG is used there by
> > linuxthreads)
> 
> In user space I'm not convinced that you couldn't do the same thing
> equally well by just having the proper dynamically linked library.  You'd
> not get in-lined lock primitives, but that's probably fine.

It's currently done this way, ld-linux.so looks in a special "686" path when
the ELF vector mentions it, otherwise normal path. There is a special 686
version of glibc and linuxthread. Just it's a very complicated and disk 
space chewing solution for a simple problem (some distributions are starting 
to drop support for 386 because of that)

-Andi

  reply	other threads:[~2001-04-11  1:24 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <3AD0FD0F.9B0C47FD@uow.edu.au>
2001-04-09  3:08 ` rw_semaphores Linus Torvalds
2001-04-09  4:18   ` rw_semaphores Linus Torvalds
2001-04-09 13:55     ` rw_semaphores Ben LaHaise
2001-04-10  2:41 ` rw_semaphores Tachino Nobuhiro
2001-04-10  5:43   ` rw_semaphores Linus Torvalds
2001-04-10  7:47     ` rw_semaphores David Howells
2001-04-10 18:02       ` [PATCH] i386 rw_semaphores fix David Howells
2001-04-10 19:42         ` Linus Torvalds
2001-04-10 19:56           ` x86 cpu configuration (was: Re: [PATCH] i386 rw_semaphores fix) Jeff Garzik
2001-04-10 21:58             ` Alan Cox
2001-04-10 20:05           ` [PATCH] i386 rw_semaphores fix Andi Kleen
2001-04-10 20:16             ` Linus Torvalds
2001-04-10 22:00             ` Alan Cox
2001-04-11  0:00               ` Andi Kleen
2001-04-11  0:13                 ` David Weinehall
2001-04-11  0:20                   ` Andi Kleen
2001-04-11  0:56                     ` David Weinehall
2001-04-11  1:04                       ` Andi Kleen
2001-04-11 12:32                     ` Alan Cox
2001-04-11  0:55                   ` Linus Torvalds
2001-04-11  1:07                     ` Andi Kleen
2001-04-11  1:12                       ` Linus Torvalds
2001-04-11  1:23                         ` Andi Kleen [this message]
2001-04-11 12:36                           ` Alan Cox
2001-04-11 18:05                     ` H. Peter Anvin
2001-04-11 12:28                 ` Alan Cox
2001-04-11 18:06                   ` H. Peter Anvin
2001-04-11 22:06                     ` Alan Cox
2001-04-11 22:42                       ` H. Peter Anvin
2001-04-11 22:55                         ` Alan Cox
2001-04-10 21:57           ` Alan Cox
2001-04-11  0:40             ` Tim Wright
2001-04-11  7:38           ` David Howells
2001-04-11 12:24             ` Maciej W. Rozycki
2001-04-11 12:57           ` [PATCH] 2nd try: " David Howells
2001-04-11 16:37             ` [PATCH] 3rd " David Howells
2001-04-11 21:41               ` [PATCH] 4th " David Howells
2001-04-12 18:16                 ` Andrew Morton
2001-04-11 23:00               ` [PATCH] 3rd " Anton Blanchard
2001-04-12 15:06                 ` [PATCH] i386 rw_semaphores, general abstraction patch David Howells
2001-04-11 16:56         ` [PATCH] i386 rw_semaphores fix Andrew Morton
2001-04-11 17:36           ` David Howells
2001-04-11 18:41             ` Linus Torvalds
2001-04-11 21:27           ` David Howells
2001-04-16 14:39       ` rw_semaphores yodaiken
2001-04-16 14:56         ` rw_semaphores Alan Cox
2001-04-16 17:05         ` rw_semaphores Linus Torvalds
2001-04-16 17:34           ` rw_semaphores yodaiken
2001-04-16 17:26         ` rw_semaphores Andrew Morton
2001-04-10  6:33   ` rw_semaphores Tachino Nobuhiro

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