Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030235AbXAKJJz (ORCPT ); Thu, 11 Jan 2007 04:09:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030237AbXAKJJz (ORCPT ); Thu, 11 Jan 2007 04:09:55 -0500 Received: from smtp106.mail.mud.yahoo.com ([209.191.85.216]:22341 "HELO smtp106.mail.mud.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1030235AbXAKJJx (ORCPT ); Thu, 11 Jan 2007 04:09:53 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com.au; h=Received:X-YMail-OSG:Message-ID:Date:From:User-Agent:X-Accept-Language:MIME-Version:To:CC:Subject:References:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=ZPIjdKUyF+1C3n/VZD5rpM6VD02tSVt1qBIjMP6gdfsbgzztELQHoTKYhw0Vf4FdsWDiq4KP9f7zj9rnBcPCdX0HTqVAX/TAXFA14oLaEfRl15lrU7QpHp7qlGI+bI2Vp1x9oDR4/Tcw7UyqTXcrtTufxK4CIat6recN5oy+wXk= ; X-YMail-OSG: q2u0VBUVM1kYmffI8t73KLJt9oIIKlV6H2LDYWyeoGS2p4UPVrnZ0XDsNL8sdy63KF1s8vvA4jxTDr6dU96jKWf3KtaoK4fROIoM25Q.q.Oh3hbI.t7.72vxHSvyril09uC43ZJ7gRgIKmnjQc_D.KWgkTmsKpNqOWn.bz_gABeT8sSV_enqh1kGwfqlfgirH9DjJuAx6SVUbOY- Message-ID: <45A5FEC4.8020800@yahoo.com.au> Date: Thu, 11 Jan 2007 20:09:24 +1100 From: Nick Piggin User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20051007 Debian/1.7.12-1 X-Accept-Language: en MIME-Version: 1.0 To: Roy Huang CC: Aubrey , Andrew Morton , Linus Torvalds , Hua Zhong , Hugh Dickins , linux-kernel@vger.kernel.org, hch@infradead.org, kenneth.w.chen@intel.com, mjt@tls.msk.ru Subject: Re: O_DIRECT question References: <6d6a94c50701101857v2af1e097xde69e592135e54ae@mail.gmail.com> <6d6a94c50701102150w4c3b46d0w6981267e2b873d37@mail.gmail.com> <20070110220603.f3685385.akpm@osdl.org> <6d6a94c50701102245g6afe6aacxfcb2136baee5cbfa@mail.gmail.com> <20070110225720.7a46e702.akpm@osdl.org> <45A5E1B2.2050908@yahoo.com.au> <6d6a94c50701102354l7ab41a3bp4761566204f1d992@mail.gmail.com> <45A5F157.9030001@yahoo.com.au> In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 983 Lines: 22 Roy Huang wrote: > There is already an EMBEDDED option in config, so I think linux is > also supporting embedded system. There are many developers working on > embedded system runing linux. They also hope to contribute to linux, > then other embeded developers can share it. Yes, but we don't like to apply kernel hacks regardless if they "help" embedded, desktop, server or anyone else. Note that these tricks to limit file cache will only paper over the actual issue, which is that large allocations must be contiguous and thus subject to fragmentation on nommu kernels. The real solution to this is simply not a kernel based one. -- SUSE Labs, Novell Inc. Send instant messages to your online friends http://au.messenger.yahoo.com - 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/