[PATCH] A basic NFSv4 client for 2.5.x

This patch changes the interface of the ->setattr() nfs_rpc_op
so that its first argument is a dentry instead of an inode.

[Explanation: The dentry is required because in NFSv4, we may
 need to OPEN the file before doing the SETATTR.  (This is
 required if the file size is changed as part of the setattr.)
 Opening the file requires making use of the containing
 directory's inode.]

fs/nfs/inode.c

@@ -781,7 +781,7 @@ printk("nfs_setattr: revalidate failed, error=%d\n", error);
 	if (error)
 		goto out;
 
-	error = NFS_PROTO(inode)->setattr(inode, &fattr, attr);
+	error = NFS_PROTO(inode)->setattr(dentry, &fattr, attr);
 	if (error)
 		goto out;
 	/*

fs/nfs/nfs3proc.c

@@ -86,9 +86,10 @@ nfs3_proc_getattr(struct inode *inode, struct nfs_fattr *fattr)
 }
 
 static int
-nfs3_proc_setattr(struct inode *inode, struct nfs_fattr *fattr,
+nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
 			struct iattr *sattr)
 {
+	struct inode *inode = dentry->d_inode;
 	struct nfs3_sattrargs	arg = {
 		.fh		= NFS_FH(inode),
 		.sattr		= sattr,

fs/nfs/proc.c

@@ -78,9 +78,10 @@ nfs_proc_getattr(struct inode *inode, struct nfs_fattr *fattr)
 }
 
 static int
-nfs_proc_setattr(struct inode *inode, struct nfs_fattr *fattr,
+nfs_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
 		 struct iattr *sattr)
 {
+	struct inode *inode = dentry->d_inode;
 	struct nfs_sattrargs	arg = { 
 		.fh	= NFS_FH(inode),
 		.sattr	= sattr

include/linux/nfs_xdr.h

@@ -307,7 +307,7 @@ struct nfs_rpc_ops {
 	int	(*getroot) (struct nfs_server *, struct nfs_fh *,
 			    struct nfs_fattr *);
 	int	(*getattr) (struct inode *, struct nfs_fattr *);
-	int	(*setattr) (struct inode *, struct nfs_fattr *,
+	int	(*setattr) (struct dentry *, struct nfs_fattr *,
 			    struct iattr *);
 	int	(*lookup)  (struct inode *, struct qstr *,
 			    struct nfs_fh *, struct nfs_fattr *);