From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from plane.gmane.org ([80.91.229.3]:43291 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750710AbaFXFhk (ORCPT ); Tue, 24 Jun 2014 01:37:40 -0400 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1WzJQI-0001Ns-BQ for linux-btrfs@vger.kernel.org; Tue, 24 Jun 2014 07:37:38 +0200 Received: from ip68-231-22-224.ph.ph.cox.net ([68.231.22.224]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 24 Jun 2014 07:37:38 +0200 Received: from 1i5t5.duncan by ip68-231-22-224.ph.ph.cox.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 24 Jun 2014 07:37:38 +0200 To: linux-btrfs@vger.kernel.org From: Duncan <1i5t5.duncan@cox.net> Subject: Re: btrfs on whole disk (no partitions) Date: Tue, 24 Jun 2014 05:37:24 +0000 (UTC) Message-ID: References: <2316027.LZEnVG8laK@xev> <6CA8020B-EB92-4A44-8AA5-3F69709F81F2@colorremedies.com> <53A6DDAD.8070804@chinilu.com> <99AD3EFE-AF9A-44A1-912E-07B1E934239B@colorremedies.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-btrfs-owner@vger.kernel.org List-ID: Martin K. Petersen posted on Mon, 23 Jun 2014 08:24:04 -0400 as excerpted: > Anyway. The short answer is that Linux will pretty much always do I/O in > multiples of the system page size regardless of the logical block size > of the underlying device. There are a few exceptions to this such as > direct I/O, legacy filesystems using bufferheads and raw block device > access. Thank you. Good to have that made clear. =:^) -- Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman