nfs: remove the second argument of k[un]map_atomic()

Signed-off-by: NCong Wang <amwang@redhat.com>

fs/nfs/dir.c

@@ -260,10 +260,10 @@ void nfs_readdir_clear_array(struct page *page)
 	struct nfs_cache_array *array;
 	int i;
 
-	array = kmap_atomic(page, KM_USER0);
+	array = kmap_atomic(page);
 	for (i = 0; i < array->size; i++)
 		kfree(array->array[i].string.name);
-	kunmap_atomic(array, KM_USER0);
+	kunmap_atomic(array);
 }
 
 /*
@@ -1870,11 +1870,11 @@ static int nfs_symlink(struct inode *dir, struct dentry *dentry, const char *sym
 	if (!page)
 		return -ENOMEM;
 
-	kaddr = kmap_atomic(page, KM_USER0);
+	kaddr = kmap_atomic(page);
 	memcpy(kaddr, symname, pathlen);
 	if (pathlen < PAGE_SIZE)
 		memset(kaddr + pathlen, 0, PAGE_SIZE - pathlen);
-	kunmap_atomic(kaddr, KM_USER0);
+	kunmap_atomic(kaddr);
 
 	error = NFS_PROTO(dir)->symlink(dir, dentry, page, pathlen, &attr);
 	if (error != 0) {

fs/nfs/nfs4proc.c

@@ -193,7 +193,7 @@ static void nfs4_setup_readdir(u64 cookie, __be32 *verifier, struct dentry *dent
 	 * when talking to the server, we always send cookie 0
 	 * instead of 1 or 2.
 	 */
-	start = p = kmap_atomic(*readdir->pages, KM_USER0);
+	start = p = kmap_atomic(*readdir->pages);
 	
 	if (cookie == 0) {
 		*p++ = xdr_one;                                  /* next */
@@ -221,7 +221,7 @@ static void nfs4_setup_readdir(u64 cookie, __be32 *verifier, struct dentry *dent
 
 	readdir->pgbase = (char *)p - (char *)start;
 	readdir->count -= readdir->pgbase;
-	kunmap_atomic(start, KM_USER0);
+	kunmap_atomic(start);
 }
 
 static int nfs4_wait_clnt_recover(struct nfs_client *clp)