From 909a3f0e9d8b0d8001cf6e99808f88eca8e44328 Mon Sep 17 00:00:00 2001
From: Cheng Lingfei <chenglingfei@foxmail.com>
Date: Mon, 24 Aug 2026 20:45:46 +0800
Subject: docs: cgroup-v2: fix misc.events key format description
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In misc cgroup, misc.events does not output a simple "max" key. Instead,
each registered misc resource outputs a separate key suffixed with ".max"
(i.e., "<res>.max").
Update the documentation to clarify that the entry key is "<res>.max".

Suggested-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Cheng Lingfei <chenglingfei@foxmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 fs/ntfs/sysctl.c | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 fs/ntfs/sysctl.c

(limited to 'fs/ntfs/sysctl.c')

diff --git a/fs/ntfs/sysctl.c b/fs/ntfs/sysctl.c
new file mode 100644
index 000000000..8c5c1b7cd
--- /dev/null
+++ b/fs/ntfs/sysctl.c
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Code for sysctl handling in NTFS Linux kernel driver.
+ *
+ * Copyright (C) 1997 Martin von Löwis, Régis Duchesne
+ * Copyright (c) 2002-2005 Anton Altaparmakov
+ */
+
+#ifdef DEBUG
+
+#include <linux/module.h>
+
+#ifdef CONFIG_SYSCTL
+
+#include <linux/proc_fs.h>
+#include <linux/sysctl.h>
+
+#include "sysctl.h"
+#include "debug.h"
+
+/* Definition of the ntfs sysctl. */
+static const struct ctl_table ntfs_sysctls[] = {
+	{
+		.procname	= "ntfs-debug",
+		.data		= &debug_msgs,		/* Data pointer and size. */
+		.maxlen		= sizeof(debug_msgs),
+		.mode		= 0644,			/* Mode, proc handler. */
+		.proc_handler	= proc_dointvec
+	},
+};
+
+/* Storage for the sysctls header. */
+static struct ctl_table_header *sysctls_root_table;
+
+/*
+ * ntfs_sysctl - add or remove the debug sysctl
+ * @add:	add (1) or remove (0) the sysctl
+ *
+ * Add or remove the debug sysctl. Return 0 on success or -errno on error.
+ */
+int ntfs_sysctl(int add)
+{
+	if (add) {
+		sysctls_root_table = register_sysctl("fs/ntfs", ntfs_sysctls);
+		if (!sysctls_root_table)
+			return -ENOMEM;
+	} else {
+		unregister_sysctl_table(sysctls_root_table);
+		sysctls_root_table = NULL;
+	}
+	return 0;
+}
+#endif /* CONFIG_SYSCTL */
+#endif /* DEBUG */
-- 
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