oprofilefs_create_...() do not need superblock argument

same story as with oprofilefs_mkdir()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c
index 755caf0..5e54247 100644
--- a/arch/mips/oprofile/common.c
+++ b/arch/mips/oprofile/common.c
@@ -44,14 +44,14 @@
 		snprintf(buf, sizeof buf, "%d", i);
 		dir = oprofilefs_mkdir(root, buf);
 
-		oprofilefs_create_ulong(root->d_sb, dir, "enabled", &ctr[i].enabled);
-		oprofilefs_create_ulong(root->d_sb, dir, "event", &ctr[i].event);
-		oprofilefs_create_ulong(root->d_sb, dir, "count", &ctr[i].count);
-		oprofilefs_create_ulong(root->d_sb, dir, "kernel", &ctr[i].kernel);
-		oprofilefs_create_ulong(root->d_sb, dir, "user", &ctr[i].user);
-		oprofilefs_create_ulong(root->d_sb, dir, "exl", &ctr[i].exl);
+		oprofilefs_create_ulong(dir, "enabled", &ctr[i].enabled);
+		oprofilefs_create_ulong(dir, "event", &ctr[i].event);
+		oprofilefs_create_ulong(dir, "count", &ctr[i].count);
+		oprofilefs_create_ulong(dir, "kernel", &ctr[i].kernel);
+		oprofilefs_create_ulong(dir, "user", &ctr[i].user);
+		oprofilefs_create_ulong(dir, "exl", &ctr[i].exl);
 		/* Dummy.  */
-		oprofilefs_create_ulong(root->d_sb, dir, "unit_mask", &ctr[i].unit_mask);
+		oprofilefs_create_ulong(dir, "unit_mask", &ctr[i].unit_mask);
 	}
 
 	return 0;