Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752545Ab1DSO5k (ORCPT ); Tue, 19 Apr 2011 10:57:40 -0400 Received: from earthlight.etchedpixels.co.uk ([81.2.110.250]:34998 "EHLO www.etchedpixels.co.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752223Ab1DSO5j (ORCPT ); Tue, 19 Apr 2011 10:57:39 -0400 Date: Tue, 19 Apr 2011 15:58:30 +0100 From: Alan Cox To: Stas Sergeev Cc: Oleg Nesterov , Linux kernel Subject: Re: [path][rfc] add PR_DETACH prctl command [3/3] Message-ID: <20110419155830.7ad33312@lxorguk.ukuu.org.uk> In-Reply-To: <4DADA22A.1010205@aknet.ru> References: <20110224132906.GA15733@redhat.com> <4D6675B0.2010700@aknet.ru> <20110224153221.GA22770@redhat.com> <4D94A788.1050806@aknet.ru> <20110331170244.GA13271@redhat.com> <4D99D6E6.4070008@aknet.ru> <20110404160351.GA23655@redhat.com> <4D9A24A0.5050105@aknet.ru> <20110405151549.GB17490@redhat.com> <4D9B4265.6080403@aknet.ru> <20110405164557.GA23248@redhat.com> <4DADA22A.1010205@aknet.ru> X-Mailer: Claws Mail 3.7.8 (GTK+ 2.22.0; x86_64-redhat-linux-gnu) Face: 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 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 751 Lines: 17 On Tue, 19 Apr 2011 18:54:34 +0400 Stas Sergeev wrote: > The attached patch implements the PR_DETACH prctl > command. It detaches the entire process group from > its parent, allowing the parent to still read the detach > code with normal wait(). If the process then exits, the > notification of the new parent is delayed till the old parent > does either wait() to read the detach code, or exits. What is the use case for this and why won't existing process group interfaces do the job ? -- 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/