nfsd4: rename cr_linkname->cr_data

The name of a link is currently stored in cr_name and cr_namelen, and
the content in cr_linkname and cr_linklen.  That's confusing.
Signed-off-by: NJ. Bruce Fields <bfields@redhat.com>

fs/nfsd/nfs4proc.c

@@ -623,7 +623,7 @@ nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 	case NF4LNK:
 		status = nfsd_symlink(rqstp, &cstate->current_fh,
 				      create->cr_name, create->cr_namelen,
-				      create->cr_linkname,
+				      create->cr_data,
 				      &resfh, &create->cr_iattr);
 		break;
 

fs/nfsd/nfs4xdr.c

@@ -598,20 +598,19 @@ nfsd4_decode_create(struct nfsd4_compoundargs *argp, struct nfsd4_create *create
 	switch (create->cr_type) {
 	case NF4LNK:
 		READ_BUF(4);
-		create->cr_linklen = be32_to_cpup(p++);
-		READ_BUF(create->cr_linklen);
+		create->cr_datalen = be32_to_cpup(p++);
+		READ_BUF(create->cr_datalen);
 		/*
 		 * The VFS will want a null-terminated string, and
 		 * null-terminating in place isn't safe since this might
 		 * end on a page boundary:
 		 */
-		create->cr_linkname =
-				kmalloc(create->cr_linklen + 1, GFP_KERNEL);
-		if (!create->cr_linkname)
+		create->cr_data = kmalloc(create->cr_datalen + 1, GFP_KERNEL);
+		if (!create->cr_data)
 			return nfserr_jukebox;
-		memcpy(create->cr_linkname, p, create->cr_linklen);
-		create->cr_linkname[create->cr_linklen] = '\0';
-		defer_free(argp, kfree, create->cr_linkname);
+		memcpy(create->cr_data, p, create->cr_datalen);
+		create->cr_data[create->cr_datalen] = '\0';
+		defer_free(argp, kfree, create->cr_data);
 		break;
 	case NF4BLK:
 	case NF4CHR:

fs/nfsd/xdr4.h

@@ -107,8 +107,8 @@ struct nfsd4_create {
 	u32		cr_type;            /* request */
 	union {                             /* request */
 		struct {
-			u32 namelen;
-			char *name;
+			u32 datalen;
+			char *data;
 		} link;   /* NF4LNK */
 		struct {
 			u32 specdata1;
@@ -121,8 +121,8 @@ struct nfsd4_create {
 	struct nfs4_acl *cr_acl;
 	struct xdr_netobj cr_label;
 };
-#define cr_linklen	u.link.namelen
-#define cr_linkname	u.link.name
+#define cr_datalen	u.link.datalen
+#define cr_data		u.link.data
 #define cr_specdata1	u.dev.specdata1
 #define cr_specdata2	u.dev.specdata2