1 files changed, 8 insertions, 0 deletions

diff --git a/include/linux/mount.h b/include/linux/mount.h
index 60718f12caa9..403d1a97c512 100644
--- a/include/linux/mount.h
+++ b/include/linux/mount.h
@@ -28,6 +28,8 @@ struct namespace;
 #define MNT_NOATIME     0x08
 #define MNT_NODIRATIME  0x10
 
+#define MNT_SHRINKABLE  0x100
+
 #define MNT_SHARED      0x1000  /* if the vfsmount is a shared mount */
 #define MNT_UNBINDABLE  0x2000  /* if the vfsmount is a unbindable mount */
 #define MNT_PNODE_MASK  0x3000  /* propogation flag mask */
@@ -78,12 +80,18 @@ extern struct vfsmount *alloc_vfsmnt(const char *name);
 extern struct vfsmount *do_kern_mount(const char *fstype, int flags,
                                       const char *name, void *data);
 
+struct file_system_type;
+extern struct vfsmount *vfs_kern_mount(struct file_system_type *type,
+                                      int flags, const char *name,
+                                      void *data);
+
 struct nameidata;
 
 extern int do_add_mount(struct vfsmount *newmnt, struct nameidata *nd,
                         int mnt_flags, struct list_head *fslist);
 
 extern void mark_mounts_for_expiry(struct list_head *mounts);
+extern void shrink_submounts(struct vfsmount *mountpoint, struct list_head *mounts);
 
 extern spinlock_t vfsmount_lock;
 extern dev_t name_to_dev_t(char *name);