From: Christoph Lameter Subject: Re: [RFC 1/2] JBD: slab management support for large block(>8k) Date: Mon, 3 Sep 2007 00:55:04 -0700 (PDT) Message-ID: References: <20070828190551.415127746@sgi.com> <20070828190735.292638294@sgi.com> <1188432669.3799.35.camel@localhost.localdomain> <1188434857.3799.76.camel@localhost.localdomain> <1188605538.3837.51.camel@localhost.localdomain> <20070901183922.GA12907@infradead.org> <20070902152801.GA19962@infradead.org> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Cc: Mingming Cao , linux-fsdevel@vger.kernel.org, adilger@clusterfs.com, sho@tnes.nec.co.jp, ext4 development , linux-kernel@vger.kernel.org To: Christoph Hellwig Return-path: Received: from netops-testserver-4-out.sgi.com ([192.48.171.29]:36856 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753170AbXICHzI (ORCPT ); Mon, 3 Sep 2007 03:55:08 -0400 In-Reply-To: <20070902152801.GA19962@infradead.org> Sender: linux-ext4-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org On Sun, 2 Sep 2007, Christoph Hellwig wrote: > > We are doing what you describe right now. So the current code is broken? > Yes. How about getting rid of the slabs there and use kmalloc? Kmalloc in mm (and therfore hopefully 2.6.24) will convert kmallocs > PAGE_SIZE to page allocator calls. Not sure what to do about the 1k and 2k requests though.