NFSv4: Cleanups for fs_locations code.

Start long arduous project...  What the hell is

	struct dentry = {};

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

fs/nfs/internal.h

@@ -107,10 +107,6 @@ extern __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus);
 /* nfs4proc.c */
 #ifdef CONFIG_NFS_V4
 extern struct rpc_procinfo nfs4_procedures[];
-
-extern int nfs4_proc_fs_locations(struct inode *dir, struct dentry *dentry,
-				  struct nfs4_fs_locations *fs_locations,
-				  struct page *page);
 #endif
 
 /* dir.c */

fs/nfs/nfs4_fs.h

@@ -169,7 +169,7 @@ extern int nfs4_do_close(struct inode *inode, struct nfs4_state *state);
 extern struct dentry *nfs4_atomic_open(struct inode *, struct dentry *, struct nameidata *);
 extern int nfs4_open_revalidate(struct inode *, struct dentry *, int, struct nameidata *);
 extern int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle);
-extern int nfs4_proc_fs_locations(struct inode *dir, struct dentry *dentry,
+extern int nfs4_proc_fs_locations(struct inode *dir, struct qstr *name,
 		struct nfs4_fs_locations *fs_locations, struct page *page);
 
 extern struct nfs4_state_recovery_ops nfs4_reboot_recovery_ops;

fs/nfs/nfs4namespace.c

@@ -16,6 +16,7 @@
 #include <linux/vfs.h>
 #include <linux/inet.h>
 #include "internal.h"
+#include "nfs4_fs.h"
 
 #define NFSDBG_FACILITY		NFSDBG_VFS
 
@@ -242,7 +243,7 @@ struct vfsmount *nfs_do_refmount(const struct vfsmount *mnt_parent, struct dentr
 	dprintk("%s: getting locations for %s/%s\n",
 		__FUNCTION__, parent->d_name.name, dentry->d_name.name);
 
-	err = nfs4_proc_fs_locations(parent->d_inode, dentry, fs_locations, page);
+	err = nfs4_proc_fs_locations(parent->d_inode, &dentry->d_name, fs_locations, page);
 	dput(parent);
 	if (err != 0 ||
 	    fs_locations->nlocations <= 0 ||

fs/nfs/nfs4proc.c

@@ -1424,7 +1424,6 @@ static int nfs4_get_referral(struct inode *dir, struct qstr *name, struct nfs_fa
 	int status = -ENOMEM;
 	struct page *page = NULL;
 	struct nfs4_fs_locations *locations = NULL;
-	struct dentry dentry = {};
 
 	page = alloc_page(GFP_KERNEL);
 	if (page == NULL)
@@ -1433,9 +1432,7 @@ static int nfs4_get_referral(struct inode *dir, struct qstr *name, struct nfs_fa
 	if (locations == NULL)
 		goto out;
 
-	dentry.d_name.name = name->name;
-	dentry.d_name.len = name->len;
-	status = nfs4_proc_fs_locations(dir, &dentry, locations, page);
+	status = nfs4_proc_fs_locations(dir, name, locations, page);
 	if (status != 0)
 		goto out;
 	/* Make sure server returned a different fsid for the referral */
@@ -3585,7 +3582,7 @@ ssize_t nfs4_listxattr(struct dentry *dentry, char *buf, size_t buflen)
 	return len;
 }
 
-int nfs4_proc_fs_locations(struct inode *dir, struct dentry *dentry,
+int nfs4_proc_fs_locations(struct inode *dir, struct qstr *name,
 		struct nfs4_fs_locations *fs_locations, struct page *page)
 {
 	struct nfs_server *server = NFS_SERVER(dir);
@@ -3595,7 +3592,7 @@ int nfs4_proc_fs_locations(struct inode *dir, struct dentry *dentry,
 	};
 	struct nfs4_fs_locations_arg args = {
 		.dir_fh = NFS_FH(dir),
-		.name = &dentry->d_name,
+		.name = name,
 		.page = page,
 		.bitmask = bitmask,
 	};
@@ -3607,7 +3604,7 @@ int nfs4_proc_fs_locations(struct inode *dir, struct dentry *dentry,
 	int status;
 
 	dprintk("%s: start\n", __FUNCTION__);
-	fs_locations->fattr.valid = 0;
+	nfs_fattr_init(&fs_locations->fattr);
 	fs_locations->server = server;
 	fs_locations->nlocations = 0;
 	status = rpc_call_sync(server->client, &msg, 0);