oprofile: don't bother with passing superblock to ->create_files()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/drivers/oprofile/oprofile_perf.c b/drivers/oprofile/oprofile_perf.c
index f3cfa0b..52ad942 100644
--- a/drivers/oprofile/oprofile_perf.c
+++ b/drivers/oprofile/oprofile_perf.c
@@ -138,7 +138,7 @@
 			op_destroy_counter(cpu, event);
 }
 
-static int oprofile_perf_create_files(struct super_block *sb, struct dentry *root)
+static int oprofile_perf_create_files(struct dentry *root)
 {
 	unsigned int i;
 
@@ -147,13 +147,13 @@
 		char buf[4];
 
 		snprintf(buf, sizeof buf, "%d", i);
-		dir = oprofilefs_mkdir(sb, root, buf);
-		oprofilefs_create_ulong(sb, dir, "enabled", &counter_config[i].enabled);
-		oprofilefs_create_ulong(sb, dir, "event", &counter_config[i].event);
-		oprofilefs_create_ulong(sb, dir, "count", &counter_config[i].count);
-		oprofilefs_create_ulong(sb, dir, "unit_mask", &counter_config[i].unit_mask);
-		oprofilefs_create_ulong(sb, dir, "kernel", &counter_config[i].kernel);
-		oprofilefs_create_ulong(sb, dir, "user", &counter_config[i].user);
+		dir = oprofilefs_mkdir(root->d_sb, root, buf);
+		oprofilefs_create_ulong(root->d_sb, dir, "enabled", &counter_config[i].enabled);
+		oprofilefs_create_ulong(root->d_sb, dir, "event", &counter_config[i].event);
+		oprofilefs_create_ulong(root->d_sb, dir, "count", &counter_config[i].count);
+		oprofilefs_create_ulong(root->d_sb, dir, "unit_mask", &counter_config[i].unit_mask);
+		oprofilefs_create_ulong(root->d_sb, dir, "kernel", &counter_config[i].kernel);
+		oprofilefs_create_ulong(root->d_sb, dir, "user", &counter_config[i].user);
 	}
 
 	return 0;