From owner-freebsd-hackers@FreeBSD.ORG Tue Apr 5 14:14:51 2011 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 530EE106566B for ; Tue, 5 Apr 2011 14:14:51 +0000 (UTC) (envelope-from gnehzuil@gmail.com) Received: from mail-px0-f172.google.com (mail-px0-f172.google.com [209.85.212.172]) by mx1.freebsd.org (Postfix) with ESMTP id 26AD18FC19 for ; Tue, 5 Apr 2011 14:14:50 +0000 (UTC) Received: by pxi6 with SMTP id 6so424297pxi.17 for ; Tue, 05 Apr 2011 07:14:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:message-id:date:from:user-agent:mime-version:to :cc:subject:content-type:content-transfer-encoding; bh=4PxI3pgGYCRMbxXUCL9H/EkWt86SqORFvrbJW5Mn7YA=; b=odbOLD5rovt43CPxzBMb4J+FZ68vvSiPzEO7J6SjbSe0vK2YZJx2/OSx1VU1AnrqcO Wq60fBcPUhsoj6o3VmDWCnrWi9nNpsEdWqpBVm5vu1wyIvvOH37obNIMMsxSK2PkMWqR FcKtz2AkqTvdxunzgS1ssBFB61LjZaQ4B3OSM= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :content-type:content-transfer-encoding; b=pEPIVDmM3NuRJp31lc1XL4l9WpSKwUiiJlQWenmxoASxhl5dtQuIuu3vCcCcsydEmx 9VDNam8snvDrBH5V6jFi5DVwFWiAYmUlg632JaJLnCEa2BwFDcWo10LWf1kg1AMIz4J7 0DllqlTEgmbDFcSpLEWl3laErw/v2LZos5npg= Received: by 10.142.135.21 with SMTP id i21mr8087187wfd.418.1302011340898; Tue, 05 Apr 2011 06:49:00 -0700 (PDT) Received: from [192.168.1.247] ([166.111.68.197]) by mx.google.com with ESMTPS id x11sm9035480wfd.1.2011.04.05.06.48.57 (version=SSLv3 cipher=OTHER); Tue, 05 Apr 2011 06:48:59 -0700 (PDT) Message-ID: <4D9B1DC2.1050205@gmail.com> Date: Tue, 05 Apr 2011 21:48:50 +0800 From: gnehzuil User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.13) Gecko/20101208 Thunderbird/3.1.7 MIME-Version: 1.0 To: freebsd-hackers@freebsd.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: "Pedro F. Giffuni" Subject: [gsoc] HTree Directory Index and Journal in ext2fs X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Apr 2011 14:14:51 -0000 Hello, I would like to apply a new project "HTree Directory Index and Journal in ext2fs" in GSoC 2011. This project is not in ideas page. But this project can improve ext2fs in FreeBSD. Last year, I have participated GSoC 2010 and have implemented a preallocation algorithm in ext2fs and make it can read ext4 file system in read-only mode. I have try to read htree dir index in ext4 read-only mode. Yet I don't finish it. I am plan to implement a htree dir index in ext2fs before midterm evaluation. Next I will try to implement journal in ext2fs. I think I can borrow some ideas from WAPBL in NetBSD. Best regards, lz