NFS: Fix the ftruncate() credential problem

ftruncate() access checking is supposed to be performed at open() time,
just like reads and writes.

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

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index 5c35b02857f3..c7605587d0eb 100644
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -129,6 +129,8 @@ nfs_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
         sattr->ia_mode &= S_IALLUGO;
 
         dprintk("NFS call  setattr\n");
+        if (sattr->ia_valid & ATTR_FILE)
+                msg.rpc_cred = nfs_file_cred(sattr->ia_file);
         nfs_fattr_init(fattr);
         status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
         if (status == 0)