From bb3b2cfeb206f5b10b859e134651b54120e3f530 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 30 Jun 2026 18:05:56 +0100 Subject: ARM: 9480/1: entry: expand comment in __switch_to As per discussion between the developers in the mail thread linked, expand the comment in __switch_to so that readers of the code understand what is going on. Suggested-by: Mark Rutland Acked-by: Mark Rutland Signed-off-by: Linus Walleij > Signed-off-by: Russell King --- 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 + +#ifdef CONFIG_SYSCTL + +#include +#include + +#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 */ -- cgit v1.3.1