[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20180502154239.14013-7-christian.brauner@ubuntu.com>
Date: Wed, 2 May 2018 17:42:39 +0200
From: Christian Brauner <christian.brauner@...ntu.com>
To: viro@...iv.linux.org.uk, torvalds@...ux-foundation.org,
linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
hch@...radead.org
Cc: tglx@...utronix.de, kstewart@...uxfoundation.org,
gregkh@...uxfoundation.org, pombredanne@...b.com,
Christian Brauner <christian.brauner@...ntu.com>
Subject: [PATCH 6/6 resend] statfs: add ST_PRIVATE
Signed-off-by: Christian Brauner <christian.brauner@...ntu.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 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 */
--
2.17.0
Powered by blists - more mailing lists