From patchwork Fri Apr 20 14:21:50 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Sterba X-Patchwork-Id: 10352823 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id E2CC96023A for ; Fri, 20 Apr 2018 14:24:25 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D43B42853A for ; Fri, 20 Apr 2018 14:24:25 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C959A2878E; Fri, 20 Apr 2018 14:24:25 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7882A2853A for ; Fri, 20 Apr 2018 14:24:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755252AbeDTOYY (ORCPT ); Fri, 20 Apr 2018 10:24:24 -0400 Received: from mx2.suse.de ([195.135.220.15]:58850 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755246AbeDTOYX (ORCPT ); Fri, 20 Apr 2018 10:24:23 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id E06EDAEBF for ; Fri, 20 Apr 2018 14:24:21 +0000 (UTC) Received: by ds.suse.cz (Postfix, from userid 10065) id 9831DDAE0B; Fri, 20 Apr 2018 16:21:50 +0200 (CEST) From: David Sterba To: linux-btrfs@vger.kernel.org Cc: David Sterba Subject: [PATCH 3/6] btrfs: add zeroing clear operation Date: Fri, 20 Apr 2018 16:21:50 +0200 Message-Id: X-Mailer: git-send-email 2.16.2 In-Reply-To: References: Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: David Sterba --- fs/btrfs/ctree.h | 1 + fs/btrfs/extent-tree.c | 3 +++ 2 files changed, 4 insertions(+) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 7cde72683b8e..772cb4ccc5f7 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -679,6 +679,7 @@ struct btrfs_stripe_hash { */ enum btrfs_clear_op_type { BTRFS_CLEAR_OP_DISCARD = 0, + BTRFS_CLEAR_OP_ZERO, BTRFS_NR_CLEAR_OP_TYPES, }; diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index b317f8ee42a9..800aaf45e6bd 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -2041,6 +2041,9 @@ static int btrfs_issue_clear_op(struct block_device *bdev, u64 start, u64 size, case BTRFS_CLEAR_OP_DISCARD: return blkdev_issue_discard(bdev, start >> 9, size >> 9, GFP_NOFS, 0); + case BTRFS_CLEAR_OP_ZERO: + return blkdev_issue_zeroout(bdev, start >> 9, size >> 9, + GFP_NOFS, 0); default: return -EOPNOTSUPP; }