From patchwork Tue Apr 26 14:35:16 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?UTF-8?q?Javier=20Gonz=C3=A1lez?= X-Patchwork-Id: 8939391 Return-Path: X-Original-To: patchwork-linux-block@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 606AA9F1C1 for ; Tue, 26 Apr 2016 14:36:06 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 86E6B201FA for ; Tue, 26 Apr 2016 14:36:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6F83720251 for ; Tue, 26 Apr 2016 14:36:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751965AbcDZOf3 (ORCPT ); Tue, 26 Apr 2016 10:35:29 -0400 Received: from mail-wm0-f52.google.com ([74.125.82.52]:37056 "EHLO mail-wm0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752226AbcDZOfW (ORCPT ); Tue, 26 Apr 2016 10:35:22 -0400 Received: by mail-wm0-f52.google.com with SMTP id n3so9112614wmn.0 for ; Tue, 26 Apr 2016 07:35:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lightnvm-io.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=iAWv8upJT64nBUBWRPyd3TUG82w/U53J1ViFQ1+dQas=; b=dy1zthc2bCdz5hu7T6EkwOvBeopv+qkLwu+L0VfOVScstTz8UPH8T/u9WNCq5wSZfY e6CLmC8HW6AFih2N0PujRHcVoimv20oXqdM9hxZIdLZB4u0PepdsyluDo39yJn2Yqna1 PlK8qSjtvWwSHep70ulNxFzqZGitesSnzd+ELt0g8hM2nd9ALIIToeQwfkw1ujEWfl/l KALuC0PVkyauYhupLxG6litx2wl00WM0YPT/s8kv815ztFvnGjAaE7mW1Uf0CaNXieDo lYvx2t1KAlhzC288f1IAnUX1FtP7kfLAoYtGkMNU+Gzfk5G/Ef51yqHq1iuG3zng+Jj5 hRwQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=iAWv8upJT64nBUBWRPyd3TUG82w/U53J1ViFQ1+dQas=; b=kp/9fJAfzxiSgqI2CAMCJLS3mmwTYDLgprS9TD+tVll1VE/ayFTulTN5w5bIo5rj3k 7kqHCDBgsvXXvsFLgcqoCHWYAB8w/emyFiKrdanpsI6sj8jQcsnQurHh/jS/WH90risd IxBVPEqMv2R85aY7+apGZE0jO182JWZ9M/+/UqtmB/GKOa6Xd9R1yzK14I0XkayXW9AG qQtVuZ8ZWYH3xSKvY69m2wdy5UccAU/+h3IHphjpuw7WPIb5bN8/RPVDDTr6Bb+pcyTR WcoQKM3y39hgOGaT6gW624D462+eE3HiuTisWqDhxC2zgsgFrAJhFUVJxPkxPi0f1N79 4wxw== X-Gm-Message-State: AOPr4FUb7ensl7J0XrDjDEnJLjRLst3XGkQZ4cxto6wgNAAb7qjIU0tHDdUceh7h4jmpAA== X-Received: by 10.194.170.201 with SMTP id ao9mr3892254wjc.100.1461681321194; Tue, 26 Apr 2016 07:35:21 -0700 (PDT) Received: from uHalley.cnexlabs.com (6164211-cl69.boa.fiberby.dk. [193.106.164.211]) by smtp.gmail.com with ESMTPSA id v64sm3520518wmv.1.2016.04.26.07.35.20 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 26 Apr 2016 07:35:20 -0700 (PDT) From: "=?UTF-8?q?Javier=20Gonz=C3=A1lez?=" X-Google-Original-From: =?UTF-8?q?Javier=20Gonz=C3=A1lez?= To: mb@lightnvm.io Cc: linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, =?UTF-8?q?Javier=20Gonz=C3=A1lez?= Subject: [PATCH] lightnvm: introduce ADDR_PADDED to signal padding Date: Tue, 26 Apr 2016 16:35:16 +0200 Message-Id: <1461681318-29571-1-git-send-email-javier@javigon.com> X-Mailer: git-send-email 2.5.0 MIME-Version: 1.0 Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org X-Spam-Status: No, score=-7.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP When REQ_FUA or REQ_FLUSH are sent from the block layer, a target might need to pad some sectors in order to meet device constrains. ADDR_PADDED allows to signal that such sector has been padded. It can be used to mark both lbas and ppas. Signed-off-by: Javier González --- include/linux/lightnvm.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h index 37cda94..5c48207 100644 --- a/include/linux/lightnvm.h +++ b/include/linux/lightnvm.h @@ -214,6 +214,7 @@ struct nvm_tgt_instance { }; #define ADDR_EMPTY (~0ULL) +#define ADDR_PADDED (~0ULL - 1) #define NVM_VERSION_MAJOR 1 #define NVM_VERSION_MINOR 0