From: Theodore Tso Subject: Re: [PATCH 3/4]ext4: Add null extent check to ext_get_path() Date: Wed, 16 Sep 2009 14:18:20 -0400 Message-ID: <20090916181820.GE15451@mit.edu> References: <4AADFC13.4070101@rs.jp.nec.com> <4AB09692.6070701@rs.jp.nec.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-ext4@vger.kernel.org To: Akira Fujita Return-path: Received: from thunk.org ([69.25.196.29]:37823 "EHLO thunker.thunk.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751246AbZIPSSS (ORCPT ); Wed, 16 Sep 2009 14:18:18 -0400 Content-Disposition: inline In-Reply-To: <4AB09692.6070701@rs.jp.nec.com> Sender: linux-ext4-owner@vger.kernel.org List-ID: On Wed, Sep 16, 2009 at 04:41:06PM +0900, Akira Fujita wrote: > Hi Ted, > > This is V2 patch. > (I forgot to release path structure in error case. :-! ) > > Akira Fujita wrote: > > ext4: Add null extent check to ext_get_path > > > > From: Akira Fujita > > > > There is the possibility that path structure which is taken > > by ext4_ext_find_extent() indicates null extents. > > Because during data block exchanging in ext4_move_extents(), > > constitution of an extent tree may be changed. > > As a solution, the patch adds null extent check > > to ext_get_path(). Applied, thanks! - Ted