don't bother passing sb to oprofile_create_files()

it's always root->d_sb
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

drivers/oprofile/oprof.h

@@ -33,7 +33,7 @@ extern unsigned long oprofile_backtrace_depth;
 struct super_block;
 struct dentry;
 
-void oprofile_create_files(struct super_block *sb, struct dentry *root);
+void oprofile_create_files(struct dentry *root);
 int oprofile_timer_init(struct oprofile_operations *ops);
 #ifdef CONFIG_OPROFILE_NMI_TIMER
 int op_nmi_timer_init(struct oprofile_operations *ops);

drivers/oprofile/oprofile_files.c

@@ -175,7 +175,7 @@ static const struct file_operations dump_fops = {
 	.llseek		= noop_llseek,
 };
 
-void oprofile_create_files(struct super_block *sb, struct dentry *root)
+void oprofile_create_files(struct dentry *root)
 {
 	/* reinitialize default values */
 	oprofile_buffer_size =		BUFFER_SIZE_DEFAULT;
@@ -183,19 +183,19 @@ void oprofile_create_files(struct super_block *sb, struct dentry *root)
 	oprofile_buffer_watershed =	BUFFER_WATERSHED_DEFAULT;
 	oprofile_time_slice =		msecs_to_jiffies(TIME_SLICE_DEFAULT);
 
-	oprofilefs_create_file(sb, root, "enable", &enable_fops);
-	oprofilefs_create_file_perm(sb, root, "dump", &dump_fops, 0666);
-	oprofilefs_create_file(sb, root, "buffer", &event_buffer_fops);
-	oprofilefs_create_ulong(sb, root, "buffer_size", &oprofile_buffer_size);
-	oprofilefs_create_ulong(sb, root, "buffer_watershed", &oprofile_buffer_watershed);
-	oprofilefs_create_ulong(sb, root, "cpu_buffer_size", &oprofile_cpu_buffer_size);
-	oprofilefs_create_file(sb, root, "cpu_type", &cpu_type_fops);
-	oprofilefs_create_file(sb, root, "backtrace_depth", &depth_fops);
-	oprofilefs_create_file(sb, root, "pointer_size", &pointer_size_fops);
+	oprofilefs_create_file(root->d_sb, root, "enable", &enable_fops);
+	oprofilefs_create_file_perm(root->d_sb, root, "dump", &dump_fops, 0666);
+	oprofilefs_create_file(root->d_sb, root, "buffer", &event_buffer_fops);
+	oprofilefs_create_ulong(root->d_sb, root, "buffer_size", &oprofile_buffer_size);
+	oprofilefs_create_ulong(root->d_sb, root, "buffer_watershed", &oprofile_buffer_watershed);
+	oprofilefs_create_ulong(root->d_sb, root, "cpu_buffer_size", &oprofile_cpu_buffer_size);
+	oprofilefs_create_file(root->d_sb, root, "cpu_type", &cpu_type_fops);
+	oprofilefs_create_file(root->d_sb, root, "backtrace_depth", &depth_fops);
+	oprofilefs_create_file(root->d_sb, root, "pointer_size", &pointer_size_fops);
 #ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
-	oprofilefs_create_file(sb, root, "time_slice", &timeout_fops);
+	oprofilefs_create_file(root->d_sb, root, "time_slice", &timeout_fops);
 #endif
-	oprofile_create_stats_files(sb, root);
+	oprofile_create_stats_files(root->d_sb, root);
 	if (oprofile_ops.create_files)
-		oprofile_ops.create_files(sb, root);
+		oprofile_ops.create_files(root->d_sb, root);
 }

drivers/oprofile/oprofilefs.c

@@ -256,7 +256,7 @@ static int oprofilefs_fill_super(struct super_block *sb, void *data, int silent)
 	if (!sb->s_root)
 		return -ENOMEM;
 
-	oprofile_create_files(sb, sb->s_root);
+	oprofile_create_files(sb->s_root);
 
 	// FIXME: verify kill_litter_super removes our dentries
 	return 0;