Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753855AbZA2KDx (ORCPT ); Thu, 29 Jan 2009 05:03:53 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751302AbZA2KDk (ORCPT ); Thu, 29 Jan 2009 05:03:40 -0500 Received: from wa-out-1112.google.com ([209.85.146.183]:23688 "EHLO wa-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756912AbZA2KDi (ORCPT ); Thu, 29 Jan 2009 05:03:38 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:reply-to:in-reply-to:references:date:message-id :subject:from:to:cc:content-type:content-transfer-encoding; b=n5lJnYJ3vCLPYKvbDNYkruJBnenTezS5ocw9oixGr+3AAuSIzL2KTT9Jxvyz2suoKe f9rUrif0KNcX84GTOSC9pHIessH6N4qnY6r6CsqRTmwOE1jayFHg5g56JOWHfvi1wK+R cQ+fy7X/a2uEFponwBF/JwDbJCSvCsBgarYKY= MIME-Version: 1.0 Reply-To: mtk.manpages@gmail.com In-Reply-To: <20090129005716.6dd51929.akpm@linux-foundation.org> References: <20090129005716.6dd51929.akpm@linux-foundation.org> Date: Thu, 29 Jan 2009 23:03:37 +1300 Message-ID: Subject: Re: [patch] drop epoll max_user_instances and rely only on max_user_watches From: Michael Kerrisk To: Andrew Morton Cc: Davide Libenzi , Linux Kernel Mailing List , Linus Torvalds , Greg KH , Willy Tarreau , Bron Gondwana Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1541 Lines: 41 On Thu, Jan 29, 2009 at 9:57 PM, Andrew Morton wrote: > >> Subject: [patch] drop epoll max_user_instances and rely only on max_user_watches > > nanonit: please prepare titles in the form "subsystem-id: > what-i-did-to-it", so a suitable name here would be > > epoll: drop max_user_instances and rely only on max_user_watches > > On Wed, 28 Jan 2009 20:56:07 -0800 (PST) Davide Libenzi wrote: > >> Linus suggested to put limits where the money is, and max_user_watches >> already does that w/out the need of max_user_instances. That has the >> advantage to mitigate the potential DoS while allowing pretty generous >> default behavior. [...] > I assume that because you based all this on all the other patches, you > view it as 2.6.30 material? Since max_user_instances was added in 2.6.28, and this is an ABI change, I suggest this should go into .29-rc, so that max_user_instances spends as little time in the wild as possible. Cheers, Michael -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ git://git.kernel.org/pub/scm/docs/man-pages/man-pages.git man-pages online: http://www.kernel.org/doc/man-pages/online_pages.html Found a bug? http://www.kernel.org/doc/man-pages/reporting_bugs.html -- 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/