Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757955AbZDKQ5R (ORCPT ); Sat, 11 Apr 2009 12:57:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755495AbZDKQ47 (ORCPT ); Sat, 11 Apr 2009 12:56:59 -0400 Received: from zeniv.linux.org.uk ([195.92.253.2]:37820 "EHLO ZenIV.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753418AbZDKQ46 (ORCPT ); Sat, 11 Apr 2009 12:56:58 -0400 Date: Sat, 11 Apr 2009 17:56:51 +0100 From: Al Viro To: "Eric W. Biederman" Cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, Hugh Dickins , Tejun Heo , Alexey Dobriyan , Linus Torvalds , Alan Cox , Greg Kroah-Hartman Subject: Re: [RFC][PATCH 0/9] File descriptor hot-unplug support Message-ID: <20090411165651.GW26366@ZenIV.linux.org.uk> References: <20090411155852.GV26366@ZenIV.linux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 633 Lines: 13 On Sat, Apr 11, 2009 at 09:49:36AM -0700, Eric W. Biederman wrote: > The fact that in the common case only one task ever accesses a struct > file leaves a lot of room for optimization. I'm not at all sure that it's a good assumption; even leaving aside e.g. several tasks sharing stdout/stderr, a bunch of datagrams coming out of several threads over the same socket is quite possible. -- 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/