Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Christian Brauner <christian.brauner@ubuntu.com>
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 <christian.brauner@ubuntu.com>
Subject: [PATCH 3/6 resend] statfs: add ST_UNBINDABLE
Date:   Wed,  2 May 2018 17:42:36 +0200
Message-Id: <20180502154239.14013-4-christian.brauner@ubuntu.com>
In-Reply-To: <20180502154239.14013-1-christian.brauner@ubuntu.com>
References: <20180502154239.14013-1-christian.brauner@ubuntu.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
---
 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 5b2a24f0f263..61b3063d3921 100644
--- a/fs/statfs.c
+++ b/fs/statfs.c
@@ -29,6 +29,8 @@ static int flags_by_mnt(int mnt_flags)
 		flags |= ST_NODIRATIME;
 	if (mnt_flags & MNT_RELATIME)
 		flags |= ST_RELATIME;
+	if (mnt_flags & MNT_UNBINDABLE)
+		flags |= ST_UNBINDABLE;
 	return flags;
 }
 
diff --git a/include/linux/statfs.h b/include/linux/statfs.h
index b336c04e793c..e1b84d0388c1 100644
--- a/include/linux/statfs.h
+++ b/include/linux/statfs.h
@@ -40,5 +40,6 @@ struct kstatfs {
 #define ST_NOATIME	(1<<10) /* do not update access times */
 #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 */
 
 #endif
-- 
2.17.0