From patchwork Wed May 31 16:18:25 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 9757603 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 85ABB602F0 for ; Wed, 31 May 2017 16:20:47 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 77E4A284C8 for ; Wed, 31 May 2017 16:20:47 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6CCBF284D5; Wed, 31 May 2017 16:20:47 +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=-1.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_NONE,T_DKIM_INVALID autolearn=no version=3.3.1 Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 345BB284D1 for ; Wed, 31 May 2017 16:20:47 +0000 (UTC) Received: from [127.0.0.1] (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id 9B7202095A58F; Wed, 31 May 2017 09:19:46 -0700 (PDT) X-Original-To: linux-nvdimm@lists.01.org Delivered-To: linux-nvdimm@lists.01.org Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 615B82095A58F for ; Wed, 31 May 2017 09:19:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=rGP0BaKwy44Db9f7yPLuQan4JL44G6gWnUtEcW+hY2Y=; b=QRHLFHquTy384+Kd7LDd788TO IhKaV5cFHlumyYoAas+Nd9kNnzyfD5Jenc/lpXo4bAl4AkcOnfJTUPRjh+zk3Yi7N51JtSZsFcOvI MGtP7imdBI4sE/APwUXp4VqifVHvt1qfxaKpIg5OKIa61C1gKV0MLwT5qmn8TG7BRvRxjLFqnj7s+ Qga9GPsjzKBng091lwdAitSsV+YrNUvdIhw/4JeerK445/YT5oeTVvgucUyzg13Y8nu9ZEbeuUQ64 Rp+vk1pI2tduDhlOpiRMvB8X5HSh6veMejr5x3EzGutXTcgsfCHZSltNF9iNlV7BF85WSgkkbsJHS 6AJfcGM9g==; Received: from [46.183.103.17] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.87 #1 (Red Hat Linux)) id 1dG6MT-0004bm-FA; Wed, 31 May 2017 16:20:41 +0000 From: Christoph Hellwig To: Andy Shevchenko , Amir Goldstein , linux-fsdevel@vger.kernel.org Subject: [PATCH 23/24] tmpfs: generate random sb->s_uuid Date: Wed, 31 May 2017 18:18:25 +0200 Message-Id: <20170531161826.23243-24-hch@lst.de> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170531161826.23243-1-hch@lst.de> References: <20170531161826.23243-1-hch@lst.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-BeenThere: linux-nvdimm@lists.01.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Linux-nvdimm developer list." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-xfs@vger.kernel.org, linux-raid@vger.kernel.org, Andrew Morton , linux-nvdimm@lists.01.org, Shaohua Li , Hugh Dickins , linux-kernel@vger.kernel.org, David Howells , linux-block@vger.kernel.org, Mimi Zohar , Steven Whitehouse MIME-Version: 1.0 Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" X-Virus-Scanned: ClamAV using ClamSMTP From: Amir Goldstein This is used by overlayfs to encode intrasystem unique file handles. Suggested-by: Miklos Szeredi Cc: Hugh Dickins Cc: Andrew Morton Signed-off-by: Amir Goldstein Signed-off-by: Christoph Hellwig --- mm/shmem.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/mm/shmem.c b/mm/shmem.c index e67d6ba4e98e..391f2dcca727 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -75,6 +75,7 @@ static struct vfsmount *shm_mnt; #include #include #include +#include #include #include @@ -3761,6 +3762,7 @@ int shmem_fill_super(struct super_block *sb, void *data, int silent) #ifdef CONFIG_TMPFS_POSIX_ACL sb->s_flags |= MS_POSIXACL; #endif + uuid_gen(&sb->s_uuid); inode = shmem_get_inode(sb, NULL, S_IFDIR | sbinfo->mode, 0, VM_NORESERVE); if (!inode)