From patchwork Wed May 2 15:42:39 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christian Brauner X-Patchwork-Id: 10375989 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 C3E5660384 for ; Wed, 2 May 2018 15:47:04 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B4F1228E6E for ; Wed, 2 May 2018 15:47:04 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A82D628F40; Wed, 2 May 2018 15:47:04 +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=unavailable 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 3E57A28E6E for ; Wed, 2 May 2018 15:47:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751658AbeEBPqv (ORCPT ); Wed, 2 May 2018 11:46:51 -0400 Received: from mail-wm0-f68.google.com ([74.125.82.68]:51016 "EHLO mail-wm0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751959AbeEBPpn (ORCPT ); Wed, 2 May 2018 11:45:43 -0400 Received: by mail-wm0-f68.google.com with SMTP id t11so23680976wmt.0; Wed, 02 May 2018 08:45:43 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=p2Nb4Lo0IIYQ+0IGua1x4F/xF676x3ZdywfejIYtyTc=; b=A57RrslN9Meur7qgot8kxBa9m7kU8HsSxGSCQMtf2z5mroz7JHs2PsUjkKurEjVTwf R2EHJLLApGMdlIqLDXrOsynwASiNjtinkcMs5NhdasP+GfsZ0GkeI2Mm6Gs7drQ55rqR oV0ejV70S3GbFoAWbNHlDdE1iNswcckRDU+We2suMYQ5chEMxHDTKgx/NUmSXoPk1r+m 9IEx6AqZ7SgSRrIZh93+beptqHBkLtf5w+g96dtYZ979pwhV31RHwJs6ry2A+BM37HoC gxo2ZLvByspDpy/X2iW4f5nN6X5usJpISFhksaVGxx2aYSaVVOorWaDfAQ43ZJYOQRps 122Q== X-Gm-Message-State: ALQs6tCvUq0+u60xr+wB65u+WB3XMGY9SsfwxRe+0xHmh1IRDqCpWa28 gLFdNYZCPhwscdu5IOD17Vw= X-Google-Smtp-Source: AB8JxZpYf0jXunz/BIKx7v7ERFcHgCmvfkwzeESY2iIlldBTD274tgDHZAEHNVQ7uj/shyA5cBKpCw== X-Received: by 2002:a50:b901:: with SMTP id m1-v6mr12988204ede.126.1525275942335; Wed, 02 May 2018 08:45:42 -0700 (PDT) Received: from localhost.localdomain ([193.175.2.17]) by smtp.gmail.com with ESMTPSA id w26-v6sm6827884edq.77.2018.05.02.08.45.41 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 02 May 2018 08:45:41 -0700 (PDT) From: Christian Brauner To: viro@zeniv.linux.org.uk, torvalds@linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, hch@infradead.org Cc: tglx@linutronix.de, kstewart@linuxfoundation.org, gregkh@linuxfoundation.org, pombredanne@nexb.com, Christian Brauner Subject: [PATCH 6/6 resend] statfs: add ST_PRIVATE Date: Wed, 2 May 2018 17:42:39 +0200 Message-Id: <20180502154239.14013-7-christian.brauner@ubuntu.com> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180502154239.14013-1-christian.brauner@ubuntu.com> References: <20180502154239.14013-1-christian.brauner@ubuntu.com> Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Christian Brauner --- fs/statfs.c | 2 ++ include/linux/statfs.h | 1 + 2 files changed, 3 insertions(+) diff --git a/fs/statfs.c b/fs/statfs.c index 35ad0402c9a3..899e899ee84c 100644 --- a/fs/statfs.c +++ b/fs/statfs.c @@ -58,6 +58,8 @@ static int calculate_f_flags(struct vfsmount *mnt) if (IS_MNT_SLAVE(real_mount(mnt))) flags |= ST_SLAVE; + else if (!(flags & ST_SHARED)) + flags |= ST_PRIVATE; return flags; } diff --git a/include/linux/statfs.h b/include/linux/statfs.h index 048127effaad..663fa5498a7d 100644 --- a/include/linux/statfs.h +++ b/include/linux/statfs.h @@ -41,6 +41,7 @@ struct kstatfs { #define ST_NODIRATIME (1<<11) /* do not update directory access times */ #define ST_RELATIME (1<<12) /* update atime relative to mtime/ctime */ #define ST_UNBINDABLE (1<<17) /* change to unbindable */ +#define ST_PRIVATE (1<<18) /* change to private */ #define ST_SLAVE (1<<19) /* change to slave */ #define ST_SHARED (1<<20) /* change to shared */