From: "Bradley C. Kuszmaul" <kuszmaul@gmail.com>
Subject: hole punching in ext4
Date: Tue, 22 Jan 2013 09:34:59 -0500
Message-ID: <CAKSyJXdbwtOQi==rPZ3nS72bLb9wd0rrmt8RTNPJMUCph-B1Ow@mail.gmail.com>
References: <CAKSyJXfvTFjGMO2ZZPsnSjc_fnUzfs2oMrYf7UQoPvO0=98FxA@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
To: linux-ext4 <linux-ext4@vger.kernel.org>
Return-path: <linux-ext4-owner@vger.kernel.org>
Received: from mail-ie0-f177.google.com ([209.85.223.177]:39969 "EHLO
	mail-ie0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with ESMTP id S1751138Ab3AVOfU (ORCPT
	<rfc822;linux-ext4@vger.kernel.org>); Tue, 22 Jan 2013 09:35:20 -0500
Received: by mail-ie0-f177.google.com with SMTP id k13so11332296iea.8
        for <linux-ext4@vger.kernel.org>; Tue, 22 Jan 2013 06:35:19 -0800 (PST)
In-Reply-To: <CAKSyJXfvTFjGMO2ZZPsnSjc_fnUzfs2oMrYf7UQoPvO0=98FxA@mail.gmail.com>
Sender: linux-ext4-owner@vger.kernel.org
List-ID: <linux-ext4.vger.kernel.org>

Hi,

Do any of the ext file systems support hole punching?  If so, do the
redhat distributions support it?  Can someone provide an example of a
program that punches a hole in a file in an ext4 file system?

-Bradley