[CIFS] DFS support: provide shrinkable mounts

Signed-off-by: Igor Mammedov <niallain@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 7093cb4b0212..aaaf748f6a26 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -102,6 +102,9 @@ extern int mode_to_acl(struct inode *inode, const char *path, __u64);
 extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *,
                         const char *);
 extern int cifs_umount(struct super_block *, struct cifs_sb_info *);
+#ifdef CONFIG_CIFS_DFS_UPCALL
+extern void dfs_shrink_umount_helper(struct vfsmount *vfsmnt);
+#endif
 void cifs_proc_init(void);
 void cifs_proc_clean(void);