NFS: Drop inode after rename

 When doing a rename on top of an existing file that is not in use,
 the inode of the overwritten file will remain in the icache.

 The fix is to decrement i_nlink of the overwritten inode, like we
 do for unlink, rmdir etc already.

 Problem diagnosed by Olaf Kirch. This patch is a slight variation
 on his fix.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

---
 dir.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletion(-)

Index: linux-2.6.13-rc6/fs/nfs/dir.c
===================================================================
--- linux-2.6.13-rc6.orig/fs/nfs/dir.c
+++ linux-2.6.13-rc6/fs/nfs/dir.c
@@ -1534,7 +1534,8 @@ static int nfs_rename(struct inode *old_
 #endif
 			goto out;
 		}
-	}
+	} else
+		new_inode->i_nlink--;
 
 go_ahead:
 	/*