From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from bombadil.infradead.org ([198.137.202.9]:50939 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751372AbcI3IZs (ORCPT ); Fri, 30 Sep 2016 04:25:48 -0400 Date: Fri, 30 Sep 2016 01:25:47 -0700 From: Christoph Hellwig Subject: Re: [PATCH 56/63] xfs: set a default CoW extent size of 32 blocks Message-ID: <20160930082547.GI32335@infradead.org> References: <147520472904.29434.15518629624221621056.stgit@birch.djwong.org> <147520510452.29434.5207119763591103950.stgit@birch.djwong.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <147520510452.29434.5207119763591103950.stgit@birch.djwong.org> Sender: linux-xfs-owner@vger.kernel.org List-ID: List-Id: xfs To: "Darrick J. Wong" Cc: david@fromorbit.com, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org On Thu, Sep 29, 2016 at 08:11:44PM -0700, Darrick J. Wong wrote: > If the admin doesn't set a CoW extent size or a regular extent size > hint, default to creating CoW reservations 32 blocks long to reduce > fragmentation. Looks fine: Reviewed-by: Christoph Hellwig Although a constant for the magic number of 32 would have been nice.