Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263624AbUDFFPH (ORCPT ); Tue, 6 Apr 2004 01:15:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263621AbUDFFPH (ORCPT ); Tue, 6 Apr 2004 01:15:07 -0400 Received: from phoenix.infradead.org ([213.86.99.234]:13829 "EHLO phoenix.infradead.org") by vger.kernel.org with ESMTP id S263624AbUDFFPC (ORCPT ); Tue, 6 Apr 2004 01:15:02 -0400 Date: Tue, 6 Apr 2004 06:14:56 +0100 From: Christoph Hellwig To: Andrew Morton Cc: Andrea Arcangeli , hugh@veritas.com, vrajesh@umich.edu, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [RFC][PATCH 1/3] radix priority search tree - objrmap complexity fix Message-ID: <20040406061456.A14800@infradead.org> Mail-Followup-To: Christoph Hellwig , Andrew Morton , Andrea Arcangeli , hugh@veritas.com, vrajesh@umich.edu, linux-kernel@vger.kernel.org, linux-mm@kvack.org References: <20040402205410.A7194@infradead.org> <20040402203514.GR21341@dualathlon.random> <20040403094058.A13091@infradead.org> <20040403152026.GE2307@dualathlon.random> <20040403155958.GF2307@dualathlon.random> <20040403170258.GH2307@dualathlon.random> <20040405105912.A3896@infradead.org> <20040405131113.A5094@infradead.org> <20040406042222.GP2234@dualathlon.random> <20040405214330.05e4ecd7.akpm@osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <20040405214330.05e4ecd7.akpm@osdl.org>; from akpm@osdl.org on Mon, Apr 05, 2004 at 09:43:30PM -0700 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 971 Lines: 21 On Mon, Apr 05, 2004 at 09:43:30PM -0700, Andrew Morton wrote: > Andrea Arcangeli wrote: > > > > Then there's the pagebuf_associate_memory that rings > > an extremely *loud* bell, pagebuf_get_no_daddr and XBUF_SET_PTR sounds > > even more, then I go on with xlog_get_bp and tons of other things doing > > pagebuf I/O with kmalloced memory with variable size of the kmalloc. Too > > many concidences for this not being an xfs bug. > > It does pagebuf I/O with kmalloced memory? Wow. Pretty much anything > which goes from kmalloc virtual addresses back to pageframes is a big fat > warning sign. It's for the log I/O. I thought about doign __get_free_page for it but that would waste a lot of memory. - 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/