From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sunil Mushran Subject: Extend FIEMAP to indicate shared extents Date: Fri, 6 Nov 2009 15:24:22 -0800 Message-ID: <1257549864-18901-1-git-send-email-sunil.mushran@oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, ocfs2-devel@oss.oracle.com To: akpm@linux-foundation.org, viro@ZenIV.linux.org.uk, hch@lst.de Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: ocfs2-devel-bounces@oss.oracle.com Errors-To: ocfs2-devel-bounces@oss.oracle.com List-Id: linux-fsdevel.vger.kernel.org Please could I get your ACK for these patches. This adds a FIEMAP extent flag, FIEMAP_EXTENT_SHARED, to indicate extents that are shared by multiple files. The second patch makes use of the same in the OCFS2 file system to show such extents in the reflinked files. Thanks Sunil