Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756006AbZBABar (ORCPT ); Sat, 31 Jan 2009 20:30:47 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752630AbZBABaj (ORCPT ); Sat, 31 Jan 2009 20:30:39 -0500 Received: from x35.xmailserver.org ([64.71.152.41]:40395 "EHLO x35.xmailserver.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752546AbZBABaj (ORCPT ); Sat, 31 Jan 2009 20:30:39 -0500 X-AuthUser: davidel@xmailserver.org Date: Sat, 31 Jan 2009 17:30:21 -0800 (PST) From: Davide Libenzi X-X-Sender: davide@alien.or.mcafeemobile.com To: mtk.manpages@gmail.com cc: Andrew Morton , Linux Kernel Mailing List , Linus Torvalds , Greg KH , Willy Tarreau , Bron Gondwana Subject: Re: [patch] drop epoll max_user_instances and rely only on max_user_watches In-Reply-To: Message-ID: References: <20090129005716.6dd51929.akpm@linux-foundation.org> User-Agent: Alpine 1.10 (DEB 962 2008-03-14) X-GPG-FINGRPRINT: CFAE 5BEE FD36 F65E E640 56FE 0974 BF23 270F 474E X-GPG-PUBLIC_KEY: http://www.xmailserver.org/davidel.asc MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1270 Lines: 37 On Sun, 1 Feb 2009, Michael Kerrisk wrote: > Hi Davide, > > On Fri, Jan 30, 2009 at 7:54 AM, Davide Libenzi wrote: > > On Thu, 29 Jan 2009, Michael Kerrisk wrote: > > > >> 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. > > > > Agreed, like I already told Andrew. Sorry Michael for the double change to > > the man page :/ > > So is the right change to the epoll(7) page (see > http://www.kernel.org/doc/man-pages/online/pages/man7/epoll.7.html ) > to simply remive the text on max_user_instances: > > /proc/sys/fs/epoll/max_user_instances (since Linux 2.6.28) > This specifies an upper limit on the number of epoll > instances that can be created per real user ID. > > Or are other changes also required? Yes. Plus, max_user_watches, instead of being 1/32 of lowmem, it's 4%. Just a detail. - Davide -- 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/