From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from 220-245-31-42.static.tpgi.com.au ([220.245.31.42]:60143 "EHLO smtp.sws.net.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752114AbbF2BoI (ORCPT ); Sun, 28 Jun 2015 21:44:08 -0400 Received: from babycakes.localnet (localhost [127.0.0.1]) by smtp.sws.net.au (Postfix) with ESMTP id 4E0ACEC34 for ; Mon, 29 Jun 2015 11:44:05 +1000 (AEST) From: Russell Coker Reply-To: russell@coker.com.au To: linux-btrfs@vger.kernel.org Subject: why does df spin up disks? Date: Mon, 29 Jun 2015 11:43:59 +1000 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Message-Id: <201506291143.59911.russell@coker.com.au> Sender: linux-btrfs-owner@vger.kernel.org List-ID: When I have a mounted filesystem why doesn't the kernel store the amount of free space? Why does it need to spin up a disk that had been spun down? -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/