pid namespaces: introduce MS_KERNMOUNT flag

[safe/jmp/linux-2.6] / include / linux / fs.h

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 3efff12..1657e99 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -123,6 +123,7 @@ extern int dir_notify_enable;
 #define MS_SLAVE       (1<<19) /* change to slave */
 #define MS_SHARED      (1<<20) /* change to shared */
 #define MS_RELATIME    (1<<21) /* Update atime relative to mtime/ctime. */
+#define MS_KERNMOUNT   (1<<22) /* this is a kern_mount call */
 #define MS_ACTIVE      (1<<30)
 #define MS_NOUSER      (1<<31)
 
@@ -1459,7 +1460,8 @@ void unnamed_dev_init(void);
 
 extern int register_filesystem(struct file_system_type *);
 extern int unregister_filesystem(struct file_system_type *);
-extern struct vfsmount *kern_mount(struct file_system_type *);
+extern struct vfsmount *kern_mount_data(struct file_system_type *, void *data);
+#define kern_mount(type) kern_mount_data(type, NULL)
 extern int may_umount_tree(struct vfsmount *);
 extern int may_umount(struct vfsmount *);
 extern void umount_tree(struct vfsmount *, int, struct list_head *);