Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757126Ab0HQKB2 (ORCPT ); Tue, 17 Aug 2010 06:01:28 -0400 Received: from cantor2.suse.de ([195.135.220.15]:51615 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751566Ab0HQKB1 convert rfc822-to-8bit (ORCPT ); Tue, 17 Aug 2010 06:01:27 -0400 From: Andreas Gruenbacher Organization: SUSE Labs, Novell Inc. To: Tvrtko Ursulin Subject: Re: [GIT PULL] notification tree - try 37! Date: Tue, 17 Aug 2010 12:01:09 +0200 User-Agent: KMail/1.13.5 (Linux/2.6.34-12-desktop; KDE/4.4.4; x86_64; ; ) Cc: Eric Paris , Christoph Hellwig , Matt Helsley , "torvalds@linux-foundation.org" , "linux-kernel@vger.kernel.org" , "viro@zeniv.linux.org.uk" , "akpm@linux-foundation.org" , Michael Kerrisk References: <1281110319.17812.21.camel@dhcp231-200.rdu.redhat.com> <1282016387.21419.113.camel@acb20005.ipt.aol.com> <201008171045.26155.tvrtko.ursulin@sophos.com> In-Reply-To: <201008171045.26155.tvrtko.ursulin@sophos.com> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: 8BIT Message-Id: <201008171201.10142.agruen@suse.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 893 Lines: 21 On Tuesday 17 August 2010 11:45:25 Tvrtko Ursulin wrote: > Why no timeouts? It sounds like a feasible way to work around listeners > which have stopped working. (Timeout and -ETIME for example to be clear, > not allowing access). >From the kernel's point of view, there is no way to guess how long those timeouts should be. Watching for progress can be implemented in user space though. Setting errno to ETIME as a result of trying to access a file is likely to break some applications which are not prepared to receive this error condition; we cannot do that. I'm quite sure that both of these issues have been discussed already. Andreas -- 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/