From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262052AbVEXJaY (ORCPT ); Tue, 24 May 2005 05:30:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262045AbVEXJ3C (ORCPT ); Tue, 24 May 2005 05:29:02 -0400 Received: from smtp.nexlab.net ([213.173.188.110]:20674 "EHLO smtp.nexlab.net") by vger.kernel.org with ESMTP id S261987AbVEXJR4 (ORCPT ); Tue, 24 May 2005 05:17:56 -0400 X-Postfix-Filter: PDFilter By Nexlab, Version 0.1 on mail01.nexlab.net X-Virus-Checker-Version: clamassassin 1.2.1 with ClamAV 0.83/893/Tue May 24 08:27:20 2005 signatures 31.893 Message-Id: <20050524091756.04470FA50@smtp.nexlab.net> Date: Tue, 24 May 2005 11:17:56 +0200 (CEST) From: root@smtp.nexlab.net To: undisclosed-recipients:; Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org by smtp.nexlab.net (Postfix) with ESMTP id 8548EFB7D for ; Tue, 24 May 2005 10:01:50 +0200 (CEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261306AbVEXCV1 (ORCPT ); Mon, 23 May 2005 22:21:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261309AbVEXCV1 (ORCPT ); Mon, 23 May 2005 22:21:27 -0400 Received: from arnor.apana.org.au ([203.14.152.115]:39434 "EHLO arnor.apana.org.au") by vger.kernel.org with ESMTP id S261306AbVEXCVX (ORCPT ); Mon, 23 May 2005 22:21:23 -0400 Received: from gondolin.me.apana.org.au ([192.168.0.6] ident=mail) by arnor.apana.org.au with esmtp (Exim 3.35 #1 (Debian)) id 1DaP2b-0002ec-00; Tue, 24 May 2005 12:21:09 +1000 Received: from herbert by gondolin.me.apana.org.au with local (Exim 3.36 #1 (Debian)) id 1DaP2Y-0007Zp-00; Tue, 24 May 2005 12:21:06 +1000 Date: Tue, 24 May 2005 12:21:06 +1000 To: Andrew Morton Cc: Linux Kernel Mailing List , linux-crypto@vger.kernel.org, "David S. Miller" , James Morris Subject: Re: [CRYPTO]: Only reschedule if !in_atomic() Message-ID: <20050524022106.GA29081@gondor.apana.org.au> References: <200505232300.j4NN07lE012726@hera.kernel.org> <20050523162806.0e70ae4f.akpm@osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050523162806.0e70ae4f.akpm@osdl.org> User-Agent: Mutt/1.5.9i From: Herbert Xu Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org On Mon, May 23, 2005 at 11:28:06PM +0000, Andrew Morton wrote: > > This code can cause deadlocks on CONFIG_SMP && !CONFIG_PREEMPT kernels. > > Please see http://lkml.org/lkml/2005/3/10/358 > > You (the programmer) *have* to know what context you're running in before > doing a voluntary yield. There is simply no way to work this out at > runtime. You're right. Perhaps we should code this into the crypto API instead? For instance, we can have a tfm flag that says whether we can sleep or not. Dave & James, What do you think? Cheers, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/