From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966148AbdKQRYM (ORCPT ); Fri, 17 Nov 2017 12:24:12 -0500 Received: from bombadil.infradead.org ([65.50.211.133]:44002 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751523AbdKQRYD (ORCPT ); Fri, 17 Nov 2017 12:24:03 -0500 Date: Fri, 17 Nov 2017 09:23:49 -0800 From: Christoph Hellwig To: Hyunchul Lee Cc: Jaegeuk Kim , Chao Yu , linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, kernel-team@lge.com, Hyunchul Lee , Jens Axboe , linux-block@vger.kernel.org Subject: Re: [RFC PATCH 0/2] apply write hints to select the type of segments Message-ID: <20171117172349.GA22843@infradead.org> References: <1510206688-12767-1-git-send-email-hyc.lee@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1510206688-12767-1-git-send-email-hyc.lee@gmail.com> User-Agent: Mutt/1.8.3 (2017-05-23) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Next time please coordinate this with the block list and Jens, who actually wrote the patch. > hints segment type > ----- ------------ > WRITE_LIFE_SHORT CURSEG_COLD_DATA > WRITE_LIFE_EXTREME CURSEG_HOT_DATA > others CURSEG_WARM_DATA Normally cold data is data with a long lifetime, and extreme is colder than cold, so there seems to be some mismatch here.