Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763549AbXEWSDP (ORCPT ); Wed, 23 May 2007 14:03:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758619AbXEWSC7 (ORCPT ); Wed, 23 May 2007 14:02:59 -0400 Received: from mu-out-0910.google.com ([209.85.134.188]:43835 "EHLO mu-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757698AbXEWSC6 (ORCPT ); Wed, 23 May 2007 14:02:58 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:subject:from:to:cc:content-type:date:message-id:mime-version:x-mailer:content-transfer-encoding; b=bEbRhne5YkMy+zG9VYTLWx85Gofxf3mArZjzlSS+Xbnk1FMFwdD3PciT9Q9nPtoCSkPxD6+yJa20L22tS59BGI5zZdRafK9N5ZKGsIkFuK6734v5RfDKwS1G9k6f9egZuN6jcgunJEoutR7wH+C746aQ5gEz+lcifG0RrRQ24ic= Subject: [RFC 1/5] inode reservation v0.1 From: coly To: linux-ext4 Cc: linux-fsdevel , linux-kernel@vger.kernel.org Content-Type: text/plain Date: Thu, 24 May 2007 02:03:24 +0800 Message-Id: <1179943404.4179.52.camel@coly-t43.site> Mime-Version: 1.0 X-Mailer: Evolution 2.6.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1211 Lines: 33 This patch is only experimental, just have a try whether the subdirectory inode reservation idea works. Now the answer is it works, and I am working on an improved version for this patch. The basic idea of subdirecctory inode reservation is to avoid unnecessary redundant meta data writing and hard disk seeking. Detailed idea can be found here:http://lkml.org/lkml/2007/3/26/180 This email has another 4 extra parts: 1) ext4 kernel patch 2) e2fsprogs patch 3) current benchmark 4) next step working The reason to release this unstable patch is: * I want others to know I am working on it. * The result of benchmark indecates that this work maybe is valuable. * Hope others can give me feedback at very basic phase of this patch. I should thank Adreas Dilger, who firstly introduces this idea to me. Also I should thank other friends in #linuxfs at irc.oftc.org, great helps to me. In the next several months, I will try best to write a usable patch :-) Coly - 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/