From patchwork Fri Apr 1 06:35:03 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qu Wenruo X-Patchwork-Id: 8720581 Return-Path: X-Original-To: patchwork-linux-btrfs@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 625269F36E for ; Fri, 1 Apr 2016 06:36:27 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 84F2A203AB for ; Fri, 1 Apr 2016 06:36:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A310A203AA for ; Fri, 1 Apr 2016 06:36:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758282AbcDAGfg (ORCPT ); Fri, 1 Apr 2016 02:35:36 -0400 Received: from cn.fujitsu.com ([222.73.24.84]:12218 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1758245AbcDAGfe (ORCPT ); Fri, 1 Apr 2016 02:35:34 -0400 X-IronPort-AV: E=Sophos;i="5.20,367,1444665600"; d="scan'208";a="419978" Received: from unknown (HELO cn.fujitsu.com) ([10.167.250.3]) by song.cn.fujitsu.com with ESMTP; 01 Apr 2016 14:35:22 +0800 Received: from localhost.localdomain (unknown [10.167.226.34]) by cn.fujitsu.com (Postfix) with ESMTP id 0899A405640F; Fri, 1 Apr 2016 14:35:19 +0800 (CST) From: Qu Wenruo To: linux-btrfs@vger.kernel.org Cc: Wang Xiaoguang Subject: [PATCH v10 12/21] btrfs: dedupe: add an inode nodedupe flag Date: Fri, 1 Apr 2016 14:35:03 +0800 Message-Id: <1459492512-31435-13-git-send-email-quwenruo@cn.fujitsu.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1459492512-31435-1-git-send-email-quwenruo@cn.fujitsu.com> References: <1459492512-31435-1-git-send-email-quwenruo@cn.fujitsu.com> MIME-Version: 1.0 X-yoursite-MailScanner-ID: 0899A405640F.AB57E X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: quwenruo@cn.fujitsu.com X-Spam-Status: No, score=-7.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Wang Xiaoguang Introduce BTRFS_INODE_NODEDUP flag, then we can explicitly disable online data dedupelication for specified files. Signed-off-by: Wang Xiaoguang --- fs/btrfs/ctree.h | 1 + fs/btrfs/ioctl.c | 6 +++++- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 85044bf..0e8933c 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -2381,6 +2381,7 @@ do { \ #define BTRFS_INODE_NOATIME (1 << 9) #define BTRFS_INODE_DIRSYNC (1 << 10) #define BTRFS_INODE_COMPRESS (1 << 11) +#define BTRFS_INODE_NODEDUPE (1 << 12) #define BTRFS_INODE_ROOT_ITEM_INIT (1 << 31) diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index f659ed5..1fca655 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -161,7 +161,8 @@ void btrfs_update_iflags(struct inode *inode) /* * Inherit flags from the parent inode. * - * Currently only the compression flags and the cow flags are inherited. + * Currently only the compression flags, dedupe flags and the cow flags + * are inherited. */ void btrfs_inherit_iflags(struct inode *inode, struct inode *dir) { @@ -186,6 +187,9 @@ void btrfs_inherit_iflags(struct inode *inode, struct inode *dir) BTRFS_I(inode)->flags |= BTRFS_INODE_NODATASUM; } + if (flags & BTRFS_INODE_NODEDUPE) + BTRFS_I(inode)->flags |= BTRFS_INODE_NODEDUPE; + btrfs_update_iflags(inode); }