Re: [PATCH 4/5] sysctl: avoid forward declarations

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On Fri, Apr 24, 2020 at 08:43:37AM +0200, Christoph Hellwig wrote:
> Move the sysctl tables to the end of the file to avoid lots of pointless
> forward declarations.
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>

Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>

-Kees

> ---
>  kernel/sysctl.c | 3565 +++++++++++++++++++++++------------------------
>  1 file changed, 1764 insertions(+), 1801 deletions(-)
> 
> diff --git a/kernel/sysctl.c b/kernel/sysctl.c
> index 31b934865ebc3..511543d238794 100644
> --- a/kernel/sysctl.c
> +++ b/kernel/sysctl.c
> @@ -176,79 +176,13 @@ enum sysctl_writes_mode {
>  };
>  
>  static enum sysctl_writes_mode sysctl_writes_strict = SYSCTL_WRITES_STRICT;
> -
> -static int proc_do_cad_pid(struct ctl_table *table, int write,
> -		  void __user *buffer, size_t *lenp, loff_t *ppos);
> -static int proc_taint(struct ctl_table *table, int write,
> -			       void __user *buffer, size_t *lenp, loff_t *ppos);
> -#ifdef CONFIG_COMPACTION
> -static int proc_dointvec_minmax_warn_RT_change(struct ctl_table *table,
> -					       int write, void __user *buffer,
> -					       size_t *lenp, loff_t *ppos);
> -#endif
> -#endif
> -
> -#ifdef CONFIG_PRINTK
> -static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
> -				void __user *buffer, size_t *lenp, loff_t *ppos);
> -#endif
> -
> -static int proc_dointvec_minmax_coredump(struct ctl_table *table, int write,
> -		void __user *buffer, size_t *lenp, loff_t *ppos);
> -#ifdef CONFIG_COREDUMP
> -static int proc_dostring_coredump(struct ctl_table *table, int write,
> -		void __user *buffer, size_t *lenp, loff_t *ppos);
> -#endif
> -static int proc_dopipe_max_size(struct ctl_table *table, int write,
> -		void __user *buffer, size_t *lenp, loff_t *ppos);
> -
> -#ifdef CONFIG_MAGIC_SYSRQ
> -static int sysrq_sysctl_handler(struct ctl_table *table, int write,
> -			void __user *buffer, size_t *lenp, loff_t *ppos);
> -#endif
> -
> -static struct ctl_table kern_table[];
> -static struct ctl_table vm_table[];
> -static struct ctl_table fs_table[];
> -static struct ctl_table debug_table[];
> -static struct ctl_table dev_table[];
> +#endif /* CONFIG_PROC_SYSCTL */
>  
>  #if defined(HAVE_ARCH_PICK_MMAP_LAYOUT) || \
>      defined(CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT)
>  int sysctl_legacy_va_layout;
>  #endif
>  
> -/* The default sysctl tables: */
> -
> -static struct ctl_table sysctl_base_table[] = {
> -	{
> -		.procname	= "kernel",
> -		.mode		= 0555,
> -		.child		= kern_table,
> -	},
> -	{
> -		.procname	= "vm",
> -		.mode		= 0555,
> -		.child		= vm_table,
> -	},
> -	{
> -		.procname	= "fs",
> -		.mode		= 0555,
> -		.child		= fs_table,
> -	},
> -	{
> -		.procname	= "debug",
> -		.mode		= 0555,
> -		.child		= debug_table,
> -	},
> -	{
> -		.procname	= "dev",
> -		.mode		= 0555,
> -		.child		= dev_table,
> -	},
> -	{ }
> -};
> -
>  #ifdef CONFIG_SCHED_DEBUG
>  static int min_sched_granularity_ns = 100000;		/* 100 usecs */
>  static int max_sched_granularity_ns = NSEC_PER_SEC;	/* 1 second */
> @@ -265,1676 +199,12 @@ static int min_extfrag_threshold;
>  static int max_extfrag_threshold = 1000;
>  #endif
>  
> -static struct ctl_table kern_table[] = {
> -	{
> -		.procname	= "sched_child_runs_first",
> -		.data		= &sysctl_sched_child_runs_first,
> -		.maxlen		= sizeof(unsigned int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#ifdef CONFIG_SCHED_DEBUG
> -	{
> -		.procname	= "sched_min_granularity_ns",
> -		.data		= &sysctl_sched_min_granularity,
> -		.maxlen		= sizeof(unsigned int),
> -		.mode		= 0644,
> -		.proc_handler	= sched_proc_update_handler,
> -		.extra1		= &min_sched_granularity_ns,
> -		.extra2		= &max_sched_granularity_ns,
> -	},
> -	{
> -		.procname	= "sched_latency_ns",
> -		.data		= &sysctl_sched_latency,
> -		.maxlen		= sizeof(unsigned int),
> -		.mode		= 0644,
> -		.proc_handler	= sched_proc_update_handler,
> -		.extra1		= &min_sched_granularity_ns,
> -		.extra2		= &max_sched_granularity_ns,
> -	},
> -	{
> -		.procname	= "sched_wakeup_granularity_ns",
> -		.data		= &sysctl_sched_wakeup_granularity,
> -		.maxlen		= sizeof(unsigned int),
> -		.mode		= 0644,
> -		.proc_handler	= sched_proc_update_handler,
> -		.extra1		= &min_wakeup_granularity_ns,
> -		.extra2		= &max_wakeup_granularity_ns,
> -	},
> -#ifdef CONFIG_SMP
> -	{
> -		.procname	= "sched_tunable_scaling",
> -		.data		= &sysctl_sched_tunable_scaling,
> -		.maxlen		= sizeof(enum sched_tunable_scaling),
> -		.mode		= 0644,
> -		.proc_handler	= sched_proc_update_handler,
> -		.extra1		= &min_sched_tunable_scaling,
> -		.extra2		= &max_sched_tunable_scaling,
> -	},
> -	{
> -		.procname	= "sched_migration_cost_ns",
> -		.data		= &sysctl_sched_migration_cost,
> -		.maxlen		= sizeof(unsigned int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -	{
> -		.procname	= "sched_nr_migrate",
> -		.data		= &sysctl_sched_nr_migrate,
> -		.maxlen		= sizeof(unsigned int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#ifdef CONFIG_SCHEDSTATS
> -	{
> -		.procname	= "sched_schedstats",
> -		.data		= NULL,
> -		.maxlen		= sizeof(unsigned int),
> -		.mode		= 0644,
> -		.proc_handler	= sysctl_schedstats,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -#endif /* CONFIG_SCHEDSTATS */
> -#endif /* CONFIG_SMP */
> -#ifdef CONFIG_NUMA_BALANCING
> -	{
> -		.procname	= "numa_balancing_scan_delay_ms",
> -		.data		= &sysctl_numa_balancing_scan_delay,
> -		.maxlen		= sizeof(unsigned int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -	{
> -		.procname	= "numa_balancing_scan_period_min_ms",
> -		.data		= &sysctl_numa_balancing_scan_period_min,
> -		.maxlen		= sizeof(unsigned int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -	{
> -		.procname	= "numa_balancing_scan_period_max_ms",
> -		.data		= &sysctl_numa_balancing_scan_period_max,
> -		.maxlen		= sizeof(unsigned int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -	{
> -		.procname	= "numa_balancing_scan_size_mb",
> -		.data		= &sysctl_numa_balancing_scan_size,
> -		.maxlen		= sizeof(unsigned int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ONE,
> -	},
> -	{
> -		.procname	= "numa_balancing",
> -		.data		= NULL, /* filled in by handler */
> -		.maxlen		= sizeof(unsigned int),
> -		.mode		= 0644,
> -		.proc_handler	= sysctl_numa_balancing,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -#endif /* CONFIG_NUMA_BALANCING */
> -#endif /* CONFIG_SCHED_DEBUG */
> -	{
> -		.procname	= "sched_rt_period_us",
> -		.data		= &sysctl_sched_rt_period,
> -		.maxlen		= sizeof(unsigned int),
> -		.mode		= 0644,
> -		.proc_handler	= sched_rt_handler,
> -	},
> -	{
> -		.procname	= "sched_rt_runtime_us",
> -		.data		= &sysctl_sched_rt_runtime,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= sched_rt_handler,
> -	},
> -	{
> -		.procname	= "sched_rr_timeslice_ms",
> -		.data		= &sysctl_sched_rr_timeslice,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= sched_rr_handler,
> -	},
> -#ifdef CONFIG_UCLAMP_TASK
> -	{
> -		.procname	= "sched_util_clamp_min",
> -		.data		= &sysctl_sched_uclamp_util_min,
> -		.maxlen		= sizeof(unsigned int),
> -		.mode		= 0644,
> -		.proc_handler	= sysctl_sched_uclamp_handler,
> -	},
> -	{
> -		.procname	= "sched_util_clamp_max",
> -		.data		= &sysctl_sched_uclamp_util_max,
> -		.maxlen		= sizeof(unsigned int),
> -		.mode		= 0644,
> -		.proc_handler	= sysctl_sched_uclamp_handler,
> -	},
> -#endif
> -#ifdef CONFIG_SCHED_AUTOGROUP
> -	{
> -		.procname	= "sched_autogroup_enabled",
> -		.data		= &sysctl_sched_autogroup_enabled,
> -		.maxlen		= sizeof(unsigned int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -#endif
> -#ifdef CONFIG_CFS_BANDWIDTH
> -	{
> -		.procname	= "sched_cfs_bandwidth_slice_us",
> -		.data		= &sysctl_sched_cfs_bandwidth_slice,
> -		.maxlen		= sizeof(unsigned int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ONE,
> -	},
> -#endif
> -#if defined(CONFIG_ENERGY_MODEL) && defined(CONFIG_CPU_FREQ_GOV_SCHEDUTIL)
> -	{
> -		.procname	= "sched_energy_aware",
> -		.data		= &sysctl_sched_energy_aware,
> -		.maxlen		= sizeof(unsigned int),
> -		.mode		= 0644,
> -		.proc_handler	= sched_energy_aware_handler,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -#endif
> -#ifdef CONFIG_PROVE_LOCKING
> -	{
> -		.procname	= "prove_locking",
> -		.data		= &prove_locking,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#endif
> -#ifdef CONFIG_LOCK_STAT
> -	{
> -		.procname	= "lock_stat",
> -		.data		= &lock_stat,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#endif
> -	{
> -		.procname	= "panic",
> -		.data		= &panic_timeout,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#ifdef CONFIG_COREDUMP
> -	{
> -		.procname	= "core_uses_pid",
> -		.data		= &core_uses_pid,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -	{
> -		.procname	= "core_pattern",
> -		.data		= core_pattern,
> -		.maxlen		= CORENAME_MAX_SIZE,
> -		.mode		= 0644,
> -		.proc_handler	= proc_dostring_coredump,
> -	},
> -	{
> -		.procname	= "core_pipe_limit",
> -		.data		= &core_pipe_limit,
> -		.maxlen		= sizeof(unsigned int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#endif
> -#ifdef CONFIG_PROC_SYSCTL
> -	{
> -		.procname	= "tainted",
> -		.maxlen 	= sizeof(long),
> -		.mode		= 0644,
> -		.proc_handler	= proc_taint,
> -	},
> -	{
> -		.procname	= "sysctl_writes_strict",
> -		.data		= &sysctl_writes_strict,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= &neg_one,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -#endif
> -#ifdef CONFIG_LATENCYTOP
> -	{
> -		.procname	= "latencytop",
> -		.data		= &latencytop_enabled,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= sysctl_latencytop,
> -	},
> -#endif
> -#ifdef CONFIG_BLK_DEV_INITRD
> -	{
> -		.procname	= "real-root-dev",
> -		.data		= &real_root_dev,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#endif
> -	{
> -		.procname	= "print-fatal-signals",
> -		.data		= &print_fatal_signals,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#ifdef CONFIG_SPARC
> -	{
> -		.procname	= "reboot-cmd",
> -		.data		= reboot_command,
> -		.maxlen		= 256,
> -		.mode		= 0644,
> -		.proc_handler	= proc_dostring,
> -	},
> -	{
> -		.procname	= "stop-a",
> -		.data		= &stop_a_enabled,
> -		.maxlen		= sizeof (int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -	{
> -		.procname	= "scons-poweroff",
> -		.data		= &scons_pwroff,
> -		.maxlen		= sizeof (int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#endif
> -#ifdef CONFIG_SPARC64
> -	{
> -		.procname	= "tsb-ratio",
> -		.data		= &sysctl_tsb_ratio,
> -		.maxlen		= sizeof (int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#endif
> -#ifdef CONFIG_PARISC
> -	{
> -		.procname	= "soft-power",
> -		.data		= &pwrsw_enabled,
> -		.maxlen		= sizeof (int),
> -	 	.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#endif
> -#ifdef CONFIG_SYSCTL_ARCH_UNALIGN_ALLOW
> -	{
> -		.procname	= "unaligned-trap",
> -		.data		= &unaligned_enabled,
> -		.maxlen		= sizeof (int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#endif
> -	{
> -		.procname	= "ctrl-alt-del",
> -		.data		= &C_A_D,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#ifdef CONFIG_FUNCTION_TRACER
> -	{
> -		.procname	= "ftrace_enabled",
> -		.data		= &ftrace_enabled,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= ftrace_enable_sysctl,
> -	},
> -#endif
> -#ifdef CONFIG_STACK_TRACER
> -	{
> -		.procname	= "stack_tracer_enabled",
> -		.data		= &stack_tracer_enabled,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= stack_trace_sysctl,
> -	},
> -#endif
> -#ifdef CONFIG_TRACING
> -	{
> -		.procname	= "ftrace_dump_on_oops",
> -		.data		= &ftrace_dump_on_oops,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -	{
> -		.procname	= "traceoff_on_warning",
> -		.data		= &__disable_trace_on_warning,
> -		.maxlen		= sizeof(__disable_trace_on_warning),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -	{
> -		.procname	= "tracepoint_printk",
> -		.data		= &tracepoint_printk,
> -		.maxlen		= sizeof(tracepoint_printk),
> -		.mode		= 0644,
> -		.proc_handler	= tracepoint_printk_sysctl,
> -	},
> -#endif
> -#ifdef CONFIG_KEXEC_CORE
> -	{
> -		.procname	= "kexec_load_disabled",
> -		.data		= &kexec_load_disabled,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		/* only handle a transition from default "0" to "1" */
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ONE,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -#endif
> -#ifdef CONFIG_MODULES
> -	{
> -		.procname	= "modprobe",
> -		.data		= &modprobe_path,
> -		.maxlen		= KMOD_PATH_LEN,
> -		.mode		= 0644,
> -		.proc_handler	= proc_dostring,
> -	},
> -	{
> -		.procname	= "modules_disabled",
> -		.data		= &modules_disabled,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		/* only handle a transition from default "0" to "1" */
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ONE,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -#endif
> -#ifdef CONFIG_UEVENT_HELPER
> -	{
> -		.procname	= "hotplug",
> -		.data		= &uevent_helper,
> -		.maxlen		= UEVENT_HELPER_PATH_LEN,
> -		.mode		= 0644,
> -		.proc_handler	= proc_dostring,
> -	},
> -#endif
> -#ifdef CONFIG_CHR_DEV_SG
> -	{
> -		.procname	= "sg-big-buff",
> -		.data		= &sg_big_buff,
> -		.maxlen		= sizeof (int),
> -		.mode		= 0444,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#endif
> -#ifdef CONFIG_BSD_PROCESS_ACCT
> -	{
> -		.procname	= "acct",
> -		.data		= &acct_parm,
> -		.maxlen		= 3*sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#endif
> -#ifdef CONFIG_MAGIC_SYSRQ
> -	{
> -		.procname	= "sysrq",
> -		.data		= NULL,
> -		.maxlen		= sizeof (int),
> -		.mode		= 0644,
> -		.proc_handler	= sysrq_sysctl_handler,
> -	},
> -#endif
> -#ifdef CONFIG_PROC_SYSCTL
> -	{
> -		.procname	= "cad_pid",
> -		.data		= NULL,
> -		.maxlen		= sizeof (int),
> -		.mode		= 0600,
> -		.proc_handler	= proc_do_cad_pid,
> -	},
> -#endif
> -	{
> -		.procname	= "threads-max",
> -		.data		= NULL,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= sysctl_max_threads,
> -	},
> -	{
> -		.procname	= "random",
> -		.mode		= 0555,
> -		.child		= random_table,
> -	},
> -	{
> -		.procname	= "usermodehelper",
> -		.mode		= 0555,
> -		.child		= usermodehelper_table,
> -	},
> -#ifdef CONFIG_FW_LOADER_USER_HELPER
> -	{
> -		.procname	= "firmware_config",
> -		.mode		= 0555,
> -		.child		= firmware_config_table,
> -	},
> -#endif
> -	{
> -		.procname	= "overflowuid",
> -		.data		= &overflowuid,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= &minolduid,
> -		.extra2		= &maxolduid,
> -	},
> -	{
> -		.procname	= "overflowgid",
> -		.data		= &overflowgid,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= &minolduid,
> -		.extra2		= &maxolduid,
> -	},
> -#ifdef CONFIG_S390
> -	{
> -		.procname	= "userprocess_debug",
> -		.data		= &show_unhandled_signals,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#endif
> -	{
> -		.procname	= "pid_max",
> -		.data		= &pid_max,
> -		.maxlen		= sizeof (int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= &pid_max_min,
> -		.extra2		= &pid_max_max,
> -	},
> -	{
> -		.procname	= "panic_on_oops",
> -		.data		= &panic_on_oops,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -	{
> -		.procname	= "panic_print",
> -		.data		= &panic_print,
> -		.maxlen		= sizeof(unsigned long),
> -		.mode		= 0644,
> -		.proc_handler	= proc_doulongvec_minmax,
> -	},
> -#if defined CONFIG_PRINTK
> -	{
> -		.procname	= "printk",
> -		.data		= &console_loglevel,
> -		.maxlen		= 4*sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -	{
> -		.procname	= "printk_ratelimit",
> -		.data		= &printk_ratelimit_state.interval,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_jiffies,
> -	},
> -	{
> -		.procname	= "printk_ratelimit_burst",
> -		.data		= &printk_ratelimit_state.burst,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -	{
> -		.procname	= "printk_delay",
> -		.data		= &printk_delay_msec,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= &ten_thousand,
> -	},
> -	{
> -		.procname	= "printk_devkmsg",
> -		.data		= devkmsg_log_str,
> -		.maxlen		= DEVKMSG_STR_MAX_SIZE,
> -		.mode		= 0644,
> -		.proc_handler	= devkmsg_sysctl_set_loglvl,
> -	},
> -	{
> -		.procname	= "dmesg_restrict",
> -		.data		= &dmesg_restrict,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax_sysadmin,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -	{
> -		.procname	= "kptr_restrict",
> -		.data		= &kptr_restrict,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax_sysadmin,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= &two,
> -	},
> -#endif
> -	{
> -		.procname	= "ngroups_max",
> -		.data		= &ngroups_max,
> -		.maxlen		= sizeof (int),
> -		.mode		= 0444,
> -		.proc_handler	= proc_dointvec,
> -	},
> -	{
> -		.procname	= "cap_last_cap",
> -		.data		= (void *)&cap_last_cap,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0444,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#if defined(CONFIG_LOCKUP_DETECTOR)
> -	{
> -		.procname       = "watchdog",
> -		.data		= &watchdog_user_enabled,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler   = proc_watchdog,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -	{
> -		.procname	= "watchdog_thresh",
> -		.data		= &watchdog_thresh,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_watchdog_thresh,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= &sixty,
> -	},
> -	{
> -		.procname       = "nmi_watchdog",
> -		.data		= &nmi_watchdog_user_enabled,
> -		.maxlen		= sizeof(int),
> -		.mode		= NMI_WATCHDOG_SYSCTL_PERM,
> -		.proc_handler   = proc_nmi_watchdog,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -	{
> -		.procname	= "watchdog_cpumask",
> -		.data		= &watchdog_cpumask_bits,
> -		.maxlen		= NR_CPUS,
> -		.mode		= 0644,
> -		.proc_handler	= proc_watchdog_cpumask,
> -	},
> -#ifdef CONFIG_SOFTLOCKUP_DETECTOR
> -	{
> -		.procname       = "soft_watchdog",
> -		.data		= &soft_watchdog_user_enabled,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler   = proc_soft_watchdog,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -	{
> -		.procname	= "softlockup_panic",
> -		.data		= &softlockup_panic,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -#ifdef CONFIG_SMP
> -	{
> -		.procname	= "softlockup_all_cpu_backtrace",
> -		.data		= &sysctl_softlockup_all_cpu_backtrace,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -#endif /* CONFIG_SMP */
> -#endif
> -#ifdef CONFIG_HARDLOCKUP_DETECTOR
> -	{
> -		.procname	= "hardlockup_panic",
> -		.data		= &hardlockup_panic,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -#ifdef CONFIG_SMP
> -	{
> -		.procname	= "hardlockup_all_cpu_backtrace",
> -		.data		= &sysctl_hardlockup_all_cpu_backtrace,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -#endif /* CONFIG_SMP */
> -#endif
> -#endif
> -
> -#if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86)
> -	{
> -		.procname       = "unknown_nmi_panic",
> -		.data           = &unknown_nmi_panic,
> -		.maxlen         = sizeof (int),
> -		.mode           = 0644,
> -		.proc_handler   = proc_dointvec,
> -	},
> -#endif
> -#if defined(CONFIG_X86)
> -	{
> -		.procname	= "panic_on_unrecovered_nmi",
> -		.data		= &panic_on_unrecovered_nmi,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -	{
> -		.procname	= "panic_on_io_nmi",
> -		.data		= &panic_on_io_nmi,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#ifdef CONFIG_DEBUG_STACKOVERFLOW
> -	{
> -		.procname	= "panic_on_stackoverflow",
> -		.data		= &sysctl_panic_on_stackoverflow,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#endif
> -	{
> -		.procname	= "bootloader_type",
> -		.data		= &bootloader_type,
> -		.maxlen		= sizeof (int),
> -		.mode		= 0444,
> -		.proc_handler	= proc_dointvec,
> -	},
> -	{
> -		.procname	= "bootloader_version",
> -		.data		= &bootloader_version,
> -		.maxlen		= sizeof (int),
> -		.mode		= 0444,
> -		.proc_handler	= proc_dointvec,
> -	},
> -	{
> -		.procname	= "io_delay_type",
> -		.data		= &io_delay_type,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#endif
> -#if defined(CONFIG_MMU)
> -	{
> -		.procname	= "randomize_va_space",
> -		.data		= &randomize_va_space,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#endif
> -#if defined(CONFIG_S390) && defined(CONFIG_SMP)
> -	{
> -		.procname	= "spin_retry",
> -		.data		= &spin_retry,
> -		.maxlen		= sizeof (int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#endif
> -#if	defined(CONFIG_ACPI_SLEEP) && defined(CONFIG_X86)
> -	{
> -		.procname	= "acpi_video_flags",
> -		.data		= &acpi_realmode_flags,
> -		.maxlen		= sizeof (unsigned long),
> -		.mode		= 0644,
> -		.proc_handler	= proc_doulongvec_minmax,
> -	},
> -#endif
> -#ifdef CONFIG_SYSCTL_ARCH_UNALIGN_NO_WARN
> -	{
> -		.procname	= "ignore-unaligned-usertrap",
> -		.data		= &no_unaligned_warning,
> -		.maxlen		= sizeof (int),
> -	 	.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#endif
> -#ifdef CONFIG_IA64
> -	{
> -		.procname	= "unaligned-dump-stack",
> -		.data		= &unaligned_dump_stack,
> -		.maxlen		= sizeof (int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#endif
> -#ifdef CONFIG_DETECT_HUNG_TASK
> -	{
> -		.procname	= "hung_task_panic",
> -		.data		= &sysctl_hung_task_panic,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -	{
> -		.procname	= "hung_task_check_count",
> -		.data		= &sysctl_hung_task_check_count,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -	},
> -	{
> -		.procname	= "hung_task_timeout_secs",
> -		.data		= &sysctl_hung_task_timeout_secs,
> -		.maxlen		= sizeof(unsigned long),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dohung_task_timeout_secs,
> -		.extra2		= &hung_task_timeout_max,
> -	},
> -	{
> -		.procname	= "hung_task_check_interval_secs",
> -		.data		= &sysctl_hung_task_check_interval_secs,
> -		.maxlen		= sizeof(unsigned long),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dohung_task_timeout_secs,
> -		.extra2		= &hung_task_timeout_max,
> -	},
> -	{
> -		.procname	= "hung_task_warnings",
> -		.data		= &sysctl_hung_task_warnings,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= &neg_one,
> -	},
> -#endif
> -#ifdef CONFIG_RT_MUTEXES
> -	{
> -		.procname	= "max_lock_depth",
> -		.data		= &max_lock_depth,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#endif
> -	{
> -		.procname	= "poweroff_cmd",
> -		.data		= &poweroff_cmd,
> -		.maxlen		= POWEROFF_CMD_PATH_LEN,
> -		.mode		= 0644,
> -		.proc_handler	= proc_dostring,
> -	},
> -#ifdef CONFIG_KEYS
> -	{
> -		.procname	= "keys",
> -		.mode		= 0555,
> -		.child		= key_sysctls,
> -	},
> -#endif
> -#ifdef CONFIG_PERF_EVENTS
> -	/*
> -	 * User-space scripts rely on the existence of this file
> -	 * as a feature check for perf_events being enabled.
> -	 *
> -	 * So it's an ABI, do not remove!
> -	 */
> -	{
> -		.procname	= "perf_event_paranoid",
> -		.data		= &sysctl_perf_event_paranoid,
> -		.maxlen		= sizeof(sysctl_perf_event_paranoid),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -	{
> -		.procname	= "perf_event_mlock_kb",
> -		.data		= &sysctl_perf_event_mlock,
> -		.maxlen		= sizeof(sysctl_perf_event_mlock),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -	{
> -		.procname	= "perf_event_max_sample_rate",
> -		.data		= &sysctl_perf_event_sample_rate,
> -		.maxlen		= sizeof(sysctl_perf_event_sample_rate),
> -		.mode		= 0644,
> -		.proc_handler	= perf_proc_update_handler,
> -		.extra1		= SYSCTL_ONE,
> -	},
> -	{
> -		.procname	= "perf_cpu_time_max_percent",
> -		.data		= &sysctl_perf_cpu_time_max_percent,
> -		.maxlen		= sizeof(sysctl_perf_cpu_time_max_percent),
> -		.mode		= 0644,
> -		.proc_handler	= perf_cpu_time_max_percent_handler,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= &one_hundred,
> -	},
> -	{
> -		.procname	= "perf_event_max_stack",
> -		.data		= &sysctl_perf_event_max_stack,
> -		.maxlen		= sizeof(sysctl_perf_event_max_stack),
> -		.mode		= 0644,
> -		.proc_handler	= perf_event_max_stack_handler,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= &six_hundred_forty_kb,
> -	},
> -	{
> -		.procname	= "perf_event_max_contexts_per_stack",
> -		.data		= &sysctl_perf_event_max_contexts_per_stack,
> -		.maxlen		= sizeof(sysctl_perf_event_max_contexts_per_stack),
> -		.mode		= 0644,
> -		.proc_handler	= perf_event_max_stack_handler,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= &one_thousand,
> -	},
> -#endif
> -	{
> -		.procname	= "panic_on_warn",
> -		.data		= &panic_on_warn,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -#if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON)
> -	{
> -		.procname	= "timer_migration",
> -		.data		= &sysctl_timer_migration,
> -		.maxlen		= sizeof(unsigned int),
> -		.mode		= 0644,
> -		.proc_handler	= timer_migration_handler,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -#endif
> -#ifdef CONFIG_BPF_SYSCALL
> -	{
> -		.procname	= "unprivileged_bpf_disabled",
> -		.data		= &sysctl_unprivileged_bpf_disabled,
> -		.maxlen		= sizeof(sysctl_unprivileged_bpf_disabled),
> -		.mode		= 0644,
> -		/* only handle a transition from default "0" to "1" */
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ONE,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -	{
> -		.procname	= "bpf_stats_enabled",
> -		.data		= &bpf_stats_enabled_key.key,
> -		.maxlen		= sizeof(bpf_stats_enabled_key),
> -		.mode		= 0644,
> -		.proc_handler	= proc_do_static_key,
> -	},
> -#endif
> -#if defined(CONFIG_TREE_RCU)
> -	{
> -		.procname	= "panic_on_rcu_stall",
> -		.data		= &sysctl_panic_on_rcu_stall,
> -		.maxlen		= sizeof(sysctl_panic_on_rcu_stall),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -#endif
> -#ifdef CONFIG_STACKLEAK_RUNTIME_DISABLE
> -	{
> -		.procname	= "stack_erasing",
> -		.data		= NULL,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0600,
> -		.proc_handler	= stack_erasing_sysctl,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -#endif
> -	{ }
> -};
> -
> -static struct ctl_table vm_table[] = {
> -	{
> -		.procname	= "overcommit_memory",
> -		.data		= &sysctl_overcommit_memory,
> -		.maxlen		= sizeof(sysctl_overcommit_memory),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= &two,
> -	},
> -	{
> -		.procname	= "panic_on_oom",
> -		.data		= &sysctl_panic_on_oom,
> -		.maxlen		= sizeof(sysctl_panic_on_oom),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= &two,
> -	},
> -	{
> -		.procname	= "oom_kill_allocating_task",
> -		.data		= &sysctl_oom_kill_allocating_task,
> -		.maxlen		= sizeof(sysctl_oom_kill_allocating_task),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -	{
> -		.procname	= "oom_dump_tasks",
> -		.data		= &sysctl_oom_dump_tasks,
> -		.maxlen		= sizeof(sysctl_oom_dump_tasks),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -	{
> -		.procname	= "overcommit_ratio",
> -		.data		= &sysctl_overcommit_ratio,
> -		.maxlen		= sizeof(sysctl_overcommit_ratio),
> -		.mode		= 0644,
> -		.proc_handler	= overcommit_ratio_handler,
> -	},
> -	{
> -		.procname	= "overcommit_kbytes",
> -		.data		= &sysctl_overcommit_kbytes,
> -		.maxlen		= sizeof(sysctl_overcommit_kbytes),
> -		.mode		= 0644,
> -		.proc_handler	= overcommit_kbytes_handler,
> -	},
> -	{
> -		.procname	= "page-cluster", 
> -		.data		= &page_cluster,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -	},
> -	{
> -		.procname	= "dirty_background_ratio",
> -		.data		= &dirty_background_ratio,
> -		.maxlen		= sizeof(dirty_background_ratio),
> -		.mode		= 0644,
> -		.proc_handler	= dirty_background_ratio_handler,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= &one_hundred,
> -	},
> -	{
> -		.procname	= "dirty_background_bytes",
> -		.data		= &dirty_background_bytes,
> -		.maxlen		= sizeof(dirty_background_bytes),
> -		.mode		= 0644,
> -		.proc_handler	= dirty_background_bytes_handler,
> -		.extra1		= &one_ul,
> -	},
> -	{
> -		.procname	= "dirty_ratio",
> -		.data		= &vm_dirty_ratio,
> -		.maxlen		= sizeof(vm_dirty_ratio),
> -		.mode		= 0644,
> -		.proc_handler	= dirty_ratio_handler,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= &one_hundred,
> -	},
> -	{
> -		.procname	= "dirty_bytes",
> -		.data		= &vm_dirty_bytes,
> -		.maxlen		= sizeof(vm_dirty_bytes),
> -		.mode		= 0644,
> -		.proc_handler	= dirty_bytes_handler,
> -		.extra1		= &dirty_bytes_min,
> -	},
> -	{
> -		.procname	= "dirty_writeback_centisecs",
> -		.data		= &dirty_writeback_interval,
> -		.maxlen		= sizeof(dirty_writeback_interval),
> -		.mode		= 0644,
> -		.proc_handler	= dirty_writeback_centisecs_handler,
> -	},
> -	{
> -		.procname	= "dirty_expire_centisecs",
> -		.data		= &dirty_expire_interval,
> -		.maxlen		= sizeof(dirty_expire_interval),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -	},
> -	{
> -		.procname	= "dirtytime_expire_seconds",
> -		.data		= &dirtytime_expire_interval,
> -		.maxlen		= sizeof(dirtytime_expire_interval),
> -		.mode		= 0644,
> -		.proc_handler	= dirtytime_interval_handler,
> -		.extra1		= SYSCTL_ZERO,
> -	},
> -	{
> -		.procname	= "swappiness",
> -		.data		= &vm_swappiness,
> -		.maxlen		= sizeof(vm_swappiness),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= &one_hundred,
> -	},
> -#ifdef CONFIG_HUGETLB_PAGE
> -	{
> -		.procname	= "nr_hugepages",
> -		.data		= NULL,
> -		.maxlen		= sizeof(unsigned long),
> -		.mode		= 0644,
> -		.proc_handler	= hugetlb_sysctl_handler,
> -	},
> -#ifdef CONFIG_NUMA
> -	{
> -		.procname       = "nr_hugepages_mempolicy",
> -		.data           = NULL,
> -		.maxlen         = sizeof(unsigned long),
> -		.mode           = 0644,
> -		.proc_handler   = &hugetlb_mempolicy_sysctl_handler,
> -	},
> -	{
> -		.procname		= "numa_stat",
> -		.data			= &sysctl_vm_numa_stat,
> -		.maxlen			= sizeof(int),
> -		.mode			= 0644,
> -		.proc_handler	= sysctl_vm_numa_stat_handler,
> -		.extra1			= SYSCTL_ZERO,
> -		.extra2			= SYSCTL_ONE,
> -	},
> -#endif
> -	 {
> -		.procname	= "hugetlb_shm_group",
> -		.data		= &sysctl_hugetlb_shm_group,
> -		.maxlen		= sizeof(gid_t),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	 },
> -	{
> -		.procname	= "nr_overcommit_hugepages",
> -		.data		= NULL,
> -		.maxlen		= sizeof(unsigned long),
> -		.mode		= 0644,
> -		.proc_handler	= hugetlb_overcommit_handler,
> -	},
> -#endif
> -	{
> -		.procname	= "lowmem_reserve_ratio",
> -		.data		= &sysctl_lowmem_reserve_ratio,
> -		.maxlen		= sizeof(sysctl_lowmem_reserve_ratio),
> -		.mode		= 0644,
> -		.proc_handler	= lowmem_reserve_ratio_sysctl_handler,
> -	},
> -	{
> -		.procname	= "drop_caches",
> -		.data		= &sysctl_drop_caches,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0200,
> -		.proc_handler	= drop_caches_sysctl_handler,
> -		.extra1		= SYSCTL_ONE,
> -		.extra2		= &four,
> -	},
> -#ifdef CONFIG_COMPACTION
> -	{
> -		.procname	= "compact_memory",
> -		.data		= &sysctl_compact_memory,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0200,
> -		.proc_handler	= sysctl_compaction_handler,
> -	},
> -	{
> -		.procname	= "extfrag_threshold",
> -		.data		= &sysctl_extfrag_threshold,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= &min_extfrag_threshold,
> -		.extra2		= &max_extfrag_threshold,
> -	},
> -	{
> -		.procname	= "compact_unevictable_allowed",
> -		.data		= &sysctl_compact_unevictable_allowed,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax_warn_RT_change,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -
> -#endif /* CONFIG_COMPACTION */
> -	{
> -		.procname	= "min_free_kbytes",
> -		.data		= &min_free_kbytes,
> -		.maxlen		= sizeof(min_free_kbytes),
> -		.mode		= 0644,
> -		.proc_handler	= min_free_kbytes_sysctl_handler,
> -		.extra1		= SYSCTL_ZERO,
> -	},
> -	{
> -		.procname	= "watermark_boost_factor",
> -		.data		= &watermark_boost_factor,
> -		.maxlen		= sizeof(watermark_boost_factor),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -	},
> -	{
> -		.procname	= "watermark_scale_factor",
> -		.data		= &watermark_scale_factor,
> -		.maxlen		= sizeof(watermark_scale_factor),
> -		.mode		= 0644,
> -		.proc_handler	= watermark_scale_factor_sysctl_handler,
> -		.extra1		= SYSCTL_ONE,
> -		.extra2		= &one_thousand,
> -	},
> -	{
> -		.procname	= "percpu_pagelist_fraction",
> -		.data		= &percpu_pagelist_fraction,
> -		.maxlen		= sizeof(percpu_pagelist_fraction),
> -		.mode		= 0644,
> -		.proc_handler	= percpu_pagelist_fraction_sysctl_handler,
> -		.extra1		= SYSCTL_ZERO,
> -	},
> -#ifdef CONFIG_MMU
> -	{
> -		.procname	= "max_map_count",
> -		.data		= &sysctl_max_map_count,
> -		.maxlen		= sizeof(sysctl_max_map_count),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -	},
> -#else
> -	{
> -		.procname	= "nr_trim_pages",
> -		.data		= &sysctl_nr_trim_pages,
> -		.maxlen		= sizeof(sysctl_nr_trim_pages),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -	},
> -#endif
> -	{
> -		.procname	= "laptop_mode",
> -		.data		= &laptop_mode,
> -		.maxlen		= sizeof(laptop_mode),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_jiffies,
> -	},
> -	{
> -		.procname	= "block_dump",
> -		.data		= &block_dump,
> -		.maxlen		= sizeof(block_dump),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -		.extra1		= SYSCTL_ZERO,
> -	},
> -	{
> -		.procname	= "vfs_cache_pressure",
> -		.data		= &sysctl_vfs_cache_pressure,
> -		.maxlen		= sizeof(sysctl_vfs_cache_pressure),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -		.extra1		= SYSCTL_ZERO,
> -	},
> -#if defined(HAVE_ARCH_PICK_MMAP_LAYOUT) || \
> -    defined(CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT)
> -	{
> -		.procname	= "legacy_va_layout",
> -		.data		= &sysctl_legacy_va_layout,
> -		.maxlen		= sizeof(sysctl_legacy_va_layout),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -		.extra1		= SYSCTL_ZERO,
> -	},
> -#endif
> -#ifdef CONFIG_NUMA
> -	{
> -		.procname	= "zone_reclaim_mode",
> -		.data		= &node_reclaim_mode,
> -		.maxlen		= sizeof(node_reclaim_mode),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -		.extra1		= SYSCTL_ZERO,
> -	},
> -	{
> -		.procname	= "min_unmapped_ratio",
> -		.data		= &sysctl_min_unmapped_ratio,
> -		.maxlen		= sizeof(sysctl_min_unmapped_ratio),
> -		.mode		= 0644,
> -		.proc_handler	= sysctl_min_unmapped_ratio_sysctl_handler,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= &one_hundred,
> -	},
> -	{
> -		.procname	= "min_slab_ratio",
> -		.data		= &sysctl_min_slab_ratio,
> -		.maxlen		= sizeof(sysctl_min_slab_ratio),
> -		.mode		= 0644,
> -		.proc_handler	= sysctl_min_slab_ratio_sysctl_handler,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= &one_hundred,
> -	},
> -#endif
> -#ifdef CONFIG_SMP
> -	{
> -		.procname	= "stat_interval",
> -		.data		= &sysctl_stat_interval,
> -		.maxlen		= sizeof(sysctl_stat_interval),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_jiffies,
> -	},
> -	{
> -		.procname	= "stat_refresh",
> -		.data		= NULL,
> -		.maxlen		= 0,
> -		.mode		= 0600,
> -		.proc_handler	= vmstat_refresh,
> -	},
> -#endif
> -#ifdef CONFIG_MMU
> -	{
> -		.procname	= "mmap_min_addr",
> -		.data		= &dac_mmap_min_addr,
> -		.maxlen		= sizeof(unsigned long),
> -		.mode		= 0644,
> -		.proc_handler	= mmap_min_addr_handler,
> -	},
> -#endif
> -#ifdef CONFIG_NUMA
> -	{
> -		.procname	= "numa_zonelist_order",
> -		.data		= &numa_zonelist_order,
> -		.maxlen		= NUMA_ZONELIST_ORDER_LEN,
> -		.mode		= 0644,
> -		.proc_handler	= numa_zonelist_order_handler,
> -	},
> -#endif
> -#if (defined(CONFIG_X86_32) && !defined(CONFIG_UML))|| \
> -   (defined(CONFIG_SUPERH) && defined(CONFIG_VSYSCALL))
> -	{
> -		.procname	= "vdso_enabled",
> -#ifdef CONFIG_X86_32
> -		.data		= &vdso32_enabled,
> -		.maxlen		= sizeof(vdso32_enabled),
> -#else
> -		.data		= &vdso_enabled,
> -		.maxlen		= sizeof(vdso_enabled),
> -#endif
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -		.extra1		= SYSCTL_ZERO,
> -	},
> -#endif
> -#ifdef CONFIG_HIGHMEM
> -	{
> -		.procname	= "highmem_is_dirtyable",
> -		.data		= &vm_highmem_is_dirtyable,
> -		.maxlen		= sizeof(vm_highmem_is_dirtyable),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -#endif
> -#ifdef CONFIG_MEMORY_FAILURE
> -	{
> -		.procname	= "memory_failure_early_kill",
> -		.data		= &sysctl_memory_failure_early_kill,
> -		.maxlen		= sizeof(sysctl_memory_failure_early_kill),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -	{
> -		.procname	= "memory_failure_recovery",
> -		.data		= &sysctl_memory_failure_recovery,
> -		.maxlen		= sizeof(sysctl_memory_failure_recovery),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -#endif
> -	{
> -		.procname	= "user_reserve_kbytes",
> -		.data		= &sysctl_user_reserve_kbytes,
> -		.maxlen		= sizeof(sysctl_user_reserve_kbytes),
> -		.mode		= 0644,
> -		.proc_handler	= proc_doulongvec_minmax,
> -	},
> -	{
> -		.procname	= "admin_reserve_kbytes",
> -		.data		= &sysctl_admin_reserve_kbytes,
> -		.maxlen		= sizeof(sysctl_admin_reserve_kbytes),
> -		.mode		= 0644,
> -		.proc_handler	= proc_doulongvec_minmax,
> -	},
> -#ifdef CONFIG_HAVE_ARCH_MMAP_RND_BITS
> -	{
> -		.procname	= "mmap_rnd_bits",
> -		.data		= &mmap_rnd_bits,
> -		.maxlen		= sizeof(mmap_rnd_bits),
> -		.mode		= 0600,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= (void *)&mmap_rnd_bits_min,
> -		.extra2		= (void *)&mmap_rnd_bits_max,
> -	},
> -#endif
> -#ifdef CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS
> -	{
> -		.procname	= "mmap_rnd_compat_bits",
> -		.data		= &mmap_rnd_compat_bits,
> -		.maxlen		= sizeof(mmap_rnd_compat_bits),
> -		.mode		= 0600,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= (void *)&mmap_rnd_compat_bits_min,
> -		.extra2		= (void *)&mmap_rnd_compat_bits_max,
> -	},
> -#endif
> -#ifdef CONFIG_USERFAULTFD
> -	{
> -		.procname	= "unprivileged_userfaultfd",
> -		.data		= &sysctl_unprivileged_userfaultfd,
> -		.maxlen		= sizeof(sysctl_unprivileged_userfaultfd),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -#endif
> -	{ }
> -};
> -
> -static struct ctl_table fs_table[] = {
> -	{
> -		.procname	= "inode-nr",
> -		.data		= &inodes_stat,
> -		.maxlen		= 2*sizeof(long),
> -		.mode		= 0444,
> -		.proc_handler	= proc_nr_inodes,
> -	},
> -	{
> -		.procname	= "inode-state",
> -		.data		= &inodes_stat,
> -		.maxlen		= 7*sizeof(long),
> -		.mode		= 0444,
> -		.proc_handler	= proc_nr_inodes,
> -	},
> -	{
> -		.procname	= "file-nr",
> -		.data		= &files_stat,
> -		.maxlen		= sizeof(files_stat),
> -		.mode		= 0444,
> -		.proc_handler	= proc_nr_files,
> -	},
> -	{
> -		.procname	= "file-max",
> -		.data		= &files_stat.max_files,
> -		.maxlen		= sizeof(files_stat.max_files),
> -		.mode		= 0644,
> -		.proc_handler	= proc_doulongvec_minmax,
> -		.extra1		= &zero_ul,
> -		.extra2		= &long_max,
> -	},
> -	{
> -		.procname	= "nr_open",
> -		.data		= &sysctl_nr_open,
> -		.maxlen		= sizeof(unsigned int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= &sysctl_nr_open_min,
> -		.extra2		= &sysctl_nr_open_max,
> -	},
> -	{
> -		.procname	= "dentry-state",
> -		.data		= &dentry_stat,
> -		.maxlen		= 6*sizeof(long),
> -		.mode		= 0444,
> -		.proc_handler	= proc_nr_dentry,
> -	},
> -	{
> -		.procname	= "overflowuid",
> -		.data		= &fs_overflowuid,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= &minolduid,
> -		.extra2		= &maxolduid,
> -	},
> -	{
> -		.procname	= "overflowgid",
> -		.data		= &fs_overflowgid,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= &minolduid,
> -		.extra2		= &maxolduid,
> -	},
> -#ifdef CONFIG_FILE_LOCKING
> -	{
> -		.procname	= "leases-enable",
> -		.data		= &leases_enable,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#endif
> -#ifdef CONFIG_DNOTIFY
> -	{
> -		.procname	= "dir-notify-enable",
> -		.data		= &dir_notify_enable,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#endif
> -#ifdef CONFIG_MMU
> -#ifdef CONFIG_FILE_LOCKING
> -	{
> -		.procname	= "lease-break-time",
> -		.data		= &lease_break_time,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec,
> -	},
> -#endif
> -#ifdef CONFIG_AIO
> -	{
> -		.procname	= "aio-nr",
> -		.data		= &aio_nr,
> -		.maxlen		= sizeof(aio_nr),
> -		.mode		= 0444,
> -		.proc_handler	= proc_doulongvec_minmax,
> -	},
> -	{
> -		.procname	= "aio-max-nr",
> -		.data		= &aio_max_nr,
> -		.maxlen		= sizeof(aio_max_nr),
> -		.mode		= 0644,
> -		.proc_handler	= proc_doulongvec_minmax,
> -	},
> -#endif /* CONFIG_AIO */
> -#ifdef CONFIG_INOTIFY_USER
> -	{
> -		.procname	= "inotify",
> -		.mode		= 0555,
> -		.child		= inotify_table,
> -	},
> -#endif	
> -#ifdef CONFIG_EPOLL
> -	{
> -		.procname	= "epoll",
> -		.mode		= 0555,
> -		.child		= epoll_table,
> -	},
> -#endif
> -#endif
> -	{
> -		.procname	= "protected_symlinks",
> -		.data		= &sysctl_protected_symlinks,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0600,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -	{
> -		.procname	= "protected_hardlinks",
> -		.data		= &sysctl_protected_hardlinks,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0600,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -	{
> -		.procname	= "protected_fifos",
> -		.data		= &sysctl_protected_fifos,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0600,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= &two,
> -	},
> -	{
> -		.procname	= "protected_regular",
> -		.data		= &sysctl_protected_regular,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0600,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= &two,
> -	},
> -	{
> -		.procname	= "suid_dumpable",
> -		.data		= &suid_dumpable,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax_coredump,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= &two,
> -	},
> -#if defined(CONFIG_BINFMT_MISC) || defined(CONFIG_BINFMT_MISC_MODULE)
> -	{
> -		.procname	= "binfmt_misc",
> -		.mode		= 0555,
> -		.child		= sysctl_mount_point,
> -	},
> -#endif
> -	{
> -		.procname	= "pipe-max-size",
> -		.data		= &pipe_max_size,
> -		.maxlen		= sizeof(pipe_max_size),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dopipe_max_size,
> -	},
> -	{
> -		.procname	= "pipe-user-pages-hard",
> -		.data		= &pipe_user_pages_hard,
> -		.maxlen		= sizeof(pipe_user_pages_hard),
> -		.mode		= 0644,
> -		.proc_handler	= proc_doulongvec_minmax,
> -	},
> -	{
> -		.procname	= "pipe-user-pages-soft",
> -		.data		= &pipe_user_pages_soft,
> -		.maxlen		= sizeof(pipe_user_pages_soft),
> -		.mode		= 0644,
> -		.proc_handler	= proc_doulongvec_minmax,
> -	},
> -	{
> -		.procname	= "mount-max",
> -		.data		= &sysctl_mount_max,
> -		.maxlen		= sizeof(unsigned int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec_minmax,
> -		.extra1		= SYSCTL_ONE,
> -	},
> -	{ }
> -};
> -
> -static struct ctl_table debug_table[] = {
> -#ifdef CONFIG_SYSCTL_EXCEPTION_TRACE
> -	{
> -		.procname	= "exception-trace",
> -		.data		= &show_unhandled_signals,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_dointvec
> -	},
> -#endif
> -#if defined(CONFIG_OPTPROBES)
> -	{
> -		.procname	= "kprobes-optimization",
> -		.data		= &sysctl_kprobes_optimization,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0644,
> -		.proc_handler	= proc_kprobes_optimization_handler,
> -		.extra1		= SYSCTL_ZERO,
> -		.extra2		= SYSCTL_ONE,
> -	},
> -#endif
> -	{ }
> -};
> -
> -static struct ctl_table dev_table[] = {
> -	{ }
> -};
> -
> -int __init sysctl_init(void)
> -{
> -	struct ctl_table_header *hdr;
> -
> -	hdr = register_sysctl_table(sysctl_base_table);
> -	kmemleak_not_leak(hdr);
> -	return 0;
> -}
> -
> -#endif /* CONFIG_SYSCTL */
> -
> -/*
> - * /proc/sys support
> - */
> -
> +#endif /* CONFIG_SYSCTL */
> +
> +/*
> + * /proc/sys support
> + */
> +
>  #ifdef CONFIG_PROC_SYSCTL
>  
>  static int _proc_do_string(char *data, int maxlen, int write,
> @@ -3307,95 +1577,1788 @@ int proc_dointvec(struct ctl_table *table, int write,
>  	return -ENOSYS;
>  }
>  
> -int proc_douintvec(struct ctl_table *table, int write,
> -		  void __user *buffer, size_t *lenp, loff_t *ppos)
> +int proc_douintvec(struct ctl_table *table, int write,
> +		  void __user *buffer, size_t *lenp, loff_t *ppos)
> +{
> +	return -ENOSYS;
> +}
> +
> +int proc_dointvec_minmax(struct ctl_table *table, int write,
> +		    void __user *buffer, size_t *lenp, loff_t *ppos)
> +{
> +	return -ENOSYS;
> +}
> +
> +int proc_douintvec_minmax(struct ctl_table *table, int write,
> +			  void __user *buffer, size_t *lenp, loff_t *ppos)
> +{
> +	return -ENOSYS;
> +}
> +
> +int proc_dointvec_jiffies(struct ctl_table *table, int write,
> +		    void __user *buffer, size_t *lenp, loff_t *ppos)
> +{
> +	return -ENOSYS;
> +}
> +
> +int proc_dointvec_userhz_jiffies(struct ctl_table *table, int write,
> +		    void __user *buffer, size_t *lenp, loff_t *ppos)
> +{
> +	return -ENOSYS;
> +}
> +
> +int proc_dointvec_ms_jiffies(struct ctl_table *table, int write,
> +			     void __user *buffer, size_t *lenp, loff_t *ppos)
>  {
>  	return -ENOSYS;
>  }
>  
> -int proc_dointvec_minmax(struct ctl_table *table, int write,
> +int proc_doulongvec_minmax(struct ctl_table *table, int write,
>  		    void __user *buffer, size_t *lenp, loff_t *ppos)
>  {
>  	return -ENOSYS;
>  }
>  
> -int proc_douintvec_minmax(struct ctl_table *table, int write,
> -			  void __user *buffer, size_t *lenp, loff_t *ppos)
> +int proc_doulongvec_ms_jiffies_minmax(struct ctl_table *table, int write,
> +				      void __user *buffer,
> +				      size_t *lenp, loff_t *ppos)
>  {
> -	return -ENOSYS;
> +    return -ENOSYS;
>  }
>  
> -int proc_dointvec_jiffies(struct ctl_table *table, int write,
> -		    void __user *buffer, size_t *lenp, loff_t *ppos)
> +int proc_do_large_bitmap(struct ctl_table *table, int write,
> +			 void __user *buffer, size_t *lenp, loff_t *ppos)
>  {
>  	return -ENOSYS;
>  }
>  
> -int proc_dointvec_userhz_jiffies(struct ctl_table *table, int write,
> -		    void __user *buffer, size_t *lenp, loff_t *ppos)
> -{
> -	return -ENOSYS;
> -}
> +#endif /* CONFIG_PROC_SYSCTL */
> +
> +#if defined(CONFIG_SYSCTL)
> +int proc_do_static_key(struct ctl_table *table, int write,
> +		       void __user *buffer, size_t *lenp,
> +		       loff_t *ppos)
> +{
> +	struct static_key *key = (struct static_key *)table->data;
> +	static DEFINE_MUTEX(static_key_mutex);
> +	int val, ret;
> +	struct ctl_table tmp = {
> +		.data   = &val,
> +		.maxlen = sizeof(val),
> +		.mode   = table->mode,
> +		.extra1 = SYSCTL_ZERO,
> +		.extra2 = SYSCTL_ONE,
> +	};
> +
> +	if (write && !capable(CAP_SYS_ADMIN))
> +		return -EPERM;
> +
> +	mutex_lock(&static_key_mutex);
> +	val = static_key_enabled(key);
> +	ret = proc_dointvec_minmax(&tmp, write, buffer, lenp, ppos);
> +	if (write && !ret) {
> +		if (val)
> +			static_key_enable(key);
> +		else
> +			static_key_disable(key);
> +	}
> +	mutex_unlock(&static_key_mutex);
> +	return ret;
> +}
> +
> +static struct ctl_table kern_table[] = {
> +	{
> +		.procname	= "sched_child_runs_first",
> +		.data		= &sysctl_sched_child_runs_first,
> +		.maxlen		= sizeof(unsigned int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#ifdef CONFIG_SCHED_DEBUG
> +	{
> +		.procname	= "sched_min_granularity_ns",
> +		.data		= &sysctl_sched_min_granularity,
> +		.maxlen		= sizeof(unsigned int),
> +		.mode		= 0644,
> +		.proc_handler	= sched_proc_update_handler,
> +		.extra1		= &min_sched_granularity_ns,
> +		.extra2		= &max_sched_granularity_ns,
> +	},
> +	{
> +		.procname	= "sched_latency_ns",
> +		.data		= &sysctl_sched_latency,
> +		.maxlen		= sizeof(unsigned int),
> +		.mode		= 0644,
> +		.proc_handler	= sched_proc_update_handler,
> +		.extra1		= &min_sched_granularity_ns,
> +		.extra2		= &max_sched_granularity_ns,
> +	},
> +	{
> +		.procname	= "sched_wakeup_granularity_ns",
> +		.data		= &sysctl_sched_wakeup_granularity,
> +		.maxlen		= sizeof(unsigned int),
> +		.mode		= 0644,
> +		.proc_handler	= sched_proc_update_handler,
> +		.extra1		= &min_wakeup_granularity_ns,
> +		.extra2		= &max_wakeup_granularity_ns,
> +	},
> +#ifdef CONFIG_SMP
> +	{
> +		.procname	= "sched_tunable_scaling",
> +		.data		= &sysctl_sched_tunable_scaling,
> +		.maxlen		= sizeof(enum sched_tunable_scaling),
> +		.mode		= 0644,
> +		.proc_handler	= sched_proc_update_handler,
> +		.extra1		= &min_sched_tunable_scaling,
> +		.extra2		= &max_sched_tunable_scaling,
> +	},
> +	{
> +		.procname	= "sched_migration_cost_ns",
> +		.data		= &sysctl_sched_migration_cost,
> +		.maxlen		= sizeof(unsigned int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +	{
> +		.procname	= "sched_nr_migrate",
> +		.data		= &sysctl_sched_nr_migrate,
> +		.maxlen		= sizeof(unsigned int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#ifdef CONFIG_SCHEDSTATS
> +	{
> +		.procname	= "sched_schedstats",
> +		.data		= NULL,
> +		.maxlen		= sizeof(unsigned int),
> +		.mode		= 0644,
> +		.proc_handler	= sysctl_schedstats,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +#endif /* CONFIG_SCHEDSTATS */
> +#endif /* CONFIG_SMP */
> +#ifdef CONFIG_NUMA_BALANCING
> +	{
> +		.procname	= "numa_balancing_scan_delay_ms",
> +		.data		= &sysctl_numa_balancing_scan_delay,
> +		.maxlen		= sizeof(unsigned int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +	{
> +		.procname	= "numa_balancing_scan_period_min_ms",
> +		.data		= &sysctl_numa_balancing_scan_period_min,
> +		.maxlen		= sizeof(unsigned int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +	{
> +		.procname	= "numa_balancing_scan_period_max_ms",
> +		.data		= &sysctl_numa_balancing_scan_period_max,
> +		.maxlen		= sizeof(unsigned int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +	{
> +		.procname	= "numa_balancing_scan_size_mb",
> +		.data		= &sysctl_numa_balancing_scan_size,
> +		.maxlen		= sizeof(unsigned int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ONE,
> +	},
> +	{
> +		.procname	= "numa_balancing",
> +		.data		= NULL, /* filled in by handler */
> +		.maxlen		= sizeof(unsigned int),
> +		.mode		= 0644,
> +		.proc_handler	= sysctl_numa_balancing,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +#endif /* CONFIG_NUMA_BALANCING */
> +#endif /* CONFIG_SCHED_DEBUG */
> +	{
> +		.procname	= "sched_rt_period_us",
> +		.data		= &sysctl_sched_rt_period,
> +		.maxlen		= sizeof(unsigned int),
> +		.mode		= 0644,
> +		.proc_handler	= sched_rt_handler,
> +	},
> +	{
> +		.procname	= "sched_rt_runtime_us",
> +		.data		= &sysctl_sched_rt_runtime,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= sched_rt_handler,
> +	},
> +	{
> +		.procname	= "sched_rr_timeslice_ms",
> +		.data		= &sysctl_sched_rr_timeslice,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= sched_rr_handler,
> +	},
> +#ifdef CONFIG_UCLAMP_TASK
> +	{
> +		.procname	= "sched_util_clamp_min",
> +		.data		= &sysctl_sched_uclamp_util_min,
> +		.maxlen		= sizeof(unsigned int),
> +		.mode		= 0644,
> +		.proc_handler	= sysctl_sched_uclamp_handler,
> +	},
> +	{
> +		.procname	= "sched_util_clamp_max",
> +		.data		= &sysctl_sched_uclamp_util_max,
> +		.maxlen		= sizeof(unsigned int),
> +		.mode		= 0644,
> +		.proc_handler	= sysctl_sched_uclamp_handler,
> +	},
> +#endif
> +#ifdef CONFIG_SCHED_AUTOGROUP
> +	{
> +		.procname	= "sched_autogroup_enabled",
> +		.data		= &sysctl_sched_autogroup_enabled,
> +		.maxlen		= sizeof(unsigned int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +#endif
> +#ifdef CONFIG_CFS_BANDWIDTH
> +	{
> +		.procname	= "sched_cfs_bandwidth_slice_us",
> +		.data		= &sysctl_sched_cfs_bandwidth_slice,
> +		.maxlen		= sizeof(unsigned int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ONE,
> +	},
> +#endif
> +#if defined(CONFIG_ENERGY_MODEL) && defined(CONFIG_CPU_FREQ_GOV_SCHEDUTIL)
> +	{
> +		.procname	= "sched_energy_aware",
> +		.data		= &sysctl_sched_energy_aware,
> +		.maxlen		= sizeof(unsigned int),
> +		.mode		= 0644,
> +		.proc_handler	= sched_energy_aware_handler,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +#endif
> +#ifdef CONFIG_PROVE_LOCKING
> +	{
> +		.procname	= "prove_locking",
> +		.data		= &prove_locking,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#endif
> +#ifdef CONFIG_LOCK_STAT
> +	{
> +		.procname	= "lock_stat",
> +		.data		= &lock_stat,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#endif
> +	{
> +		.procname	= "panic",
> +		.data		= &panic_timeout,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#ifdef CONFIG_COREDUMP
> +	{
> +		.procname	= "core_uses_pid",
> +		.data		= &core_uses_pid,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +	{
> +		.procname	= "core_pattern",
> +		.data		= core_pattern,
> +		.maxlen		= CORENAME_MAX_SIZE,
> +		.mode		= 0644,
> +		.proc_handler	= proc_dostring_coredump,
> +	},
> +	{
> +		.procname	= "core_pipe_limit",
> +		.data		= &core_pipe_limit,
> +		.maxlen		= sizeof(unsigned int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#endif
> +#ifdef CONFIG_PROC_SYSCTL
> +	{
> +		.procname	= "tainted",
> +		.maxlen 	= sizeof(long),
> +		.mode		= 0644,
> +		.proc_handler	= proc_taint,
> +	},
> +	{
> +		.procname	= "sysctl_writes_strict",
> +		.data		= &sysctl_writes_strict,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= &neg_one,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +#endif
> +#ifdef CONFIG_LATENCYTOP
> +	{
> +		.procname	= "latencytop",
> +		.data		= &latencytop_enabled,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= sysctl_latencytop,
> +	},
> +#endif
> +#ifdef CONFIG_BLK_DEV_INITRD
> +	{
> +		.procname	= "real-root-dev",
> +		.data		= &real_root_dev,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#endif
> +	{
> +		.procname	= "print-fatal-signals",
> +		.data		= &print_fatal_signals,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#ifdef CONFIG_SPARC
> +	{
> +		.procname	= "reboot-cmd",
> +		.data		= reboot_command,
> +		.maxlen		= 256,
> +		.mode		= 0644,
> +		.proc_handler	= proc_dostring,
> +	},
> +	{
> +		.procname	= "stop-a",
> +		.data		= &stop_a_enabled,
> +		.maxlen		= sizeof (int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +	{
> +		.procname	= "scons-poweroff",
> +		.data		= &scons_pwroff,
> +		.maxlen		= sizeof (int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#endif
> +#ifdef CONFIG_SPARC64
> +	{
> +		.procname	= "tsb-ratio",
> +		.data		= &sysctl_tsb_ratio,
> +		.maxlen		= sizeof (int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#endif
> +#ifdef CONFIG_PARISC
> +	{
> +		.procname	= "soft-power",
> +		.data		= &pwrsw_enabled,
> +		.maxlen		= sizeof (int),
> +	 	.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#endif
> +#ifdef CONFIG_SYSCTL_ARCH_UNALIGN_ALLOW
> +	{
> +		.procname	= "unaligned-trap",
> +		.data		= &unaligned_enabled,
> +		.maxlen		= sizeof (int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#endif
> +	{
> +		.procname	= "ctrl-alt-del",
> +		.data		= &C_A_D,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#ifdef CONFIG_FUNCTION_TRACER
> +	{
> +		.procname	= "ftrace_enabled",
> +		.data		= &ftrace_enabled,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= ftrace_enable_sysctl,
> +	},
> +#endif
> +#ifdef CONFIG_STACK_TRACER
> +	{
> +		.procname	= "stack_tracer_enabled",
> +		.data		= &stack_tracer_enabled,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= stack_trace_sysctl,
> +	},
> +#endif
> +#ifdef CONFIG_TRACING
> +	{
> +		.procname	= "ftrace_dump_on_oops",
> +		.data		= &ftrace_dump_on_oops,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +	{
> +		.procname	= "traceoff_on_warning",
> +		.data		= &__disable_trace_on_warning,
> +		.maxlen		= sizeof(__disable_trace_on_warning),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +	{
> +		.procname	= "tracepoint_printk",
> +		.data		= &tracepoint_printk,
> +		.maxlen		= sizeof(tracepoint_printk),
> +		.mode		= 0644,
> +		.proc_handler	= tracepoint_printk_sysctl,
> +	},
> +#endif
> +#ifdef CONFIG_KEXEC_CORE
> +	{
> +		.procname	= "kexec_load_disabled",
> +		.data		= &kexec_load_disabled,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		/* only handle a transition from default "0" to "1" */
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ONE,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +#endif
> +#ifdef CONFIG_MODULES
> +	{
> +		.procname	= "modprobe",
> +		.data		= &modprobe_path,
> +		.maxlen		= KMOD_PATH_LEN,
> +		.mode		= 0644,
> +		.proc_handler	= proc_dostring,
> +	},
> +	{
> +		.procname	= "modules_disabled",
> +		.data		= &modules_disabled,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		/* only handle a transition from default "0" to "1" */
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ONE,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +#endif
> +#ifdef CONFIG_UEVENT_HELPER
> +	{
> +		.procname	= "hotplug",
> +		.data		= &uevent_helper,
> +		.maxlen		= UEVENT_HELPER_PATH_LEN,
> +		.mode		= 0644,
> +		.proc_handler	= proc_dostring,
> +	},
> +#endif
> +#ifdef CONFIG_CHR_DEV_SG
> +	{
> +		.procname	= "sg-big-buff",
> +		.data		= &sg_big_buff,
> +		.maxlen		= sizeof (int),
> +		.mode		= 0444,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#endif
> +#ifdef CONFIG_BSD_PROCESS_ACCT
> +	{
> +		.procname	= "acct",
> +		.data		= &acct_parm,
> +		.maxlen		= 3*sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#endif
> +#ifdef CONFIG_MAGIC_SYSRQ
> +	{
> +		.procname	= "sysrq",
> +		.data		= NULL,
> +		.maxlen		= sizeof (int),
> +		.mode		= 0644,
> +		.proc_handler	= sysrq_sysctl_handler,
> +	},
> +#endif
> +#ifdef CONFIG_PROC_SYSCTL
> +	{
> +		.procname	= "cad_pid",
> +		.data		= NULL,
> +		.maxlen		= sizeof (int),
> +		.mode		= 0600,
> +		.proc_handler	= proc_do_cad_pid,
> +	},
> +#endif
> +	{
> +		.procname	= "threads-max",
> +		.data		= NULL,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= sysctl_max_threads,
> +	},
> +	{
> +		.procname	= "random",
> +		.mode		= 0555,
> +		.child		= random_table,
> +	},
> +	{
> +		.procname	= "usermodehelper",
> +		.mode		= 0555,
> +		.child		= usermodehelper_table,
> +	},
> +#ifdef CONFIG_FW_LOADER_USER_HELPER
> +	{
> +		.procname	= "firmware_config",
> +		.mode		= 0555,
> +		.child		= firmware_config_table,
> +	},
> +#endif
> +	{
> +		.procname	= "overflowuid",
> +		.data		= &overflowuid,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= &minolduid,
> +		.extra2		= &maxolduid,
> +	},
> +	{
> +		.procname	= "overflowgid",
> +		.data		= &overflowgid,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= &minolduid,
> +		.extra2		= &maxolduid,
> +	},
> +#ifdef CONFIG_S390
> +	{
> +		.procname	= "userprocess_debug",
> +		.data		= &show_unhandled_signals,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#endif
> +	{
> +		.procname	= "pid_max",
> +		.data		= &pid_max,
> +		.maxlen		= sizeof (int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= &pid_max_min,
> +		.extra2		= &pid_max_max,
> +	},
> +	{
> +		.procname	= "panic_on_oops",
> +		.data		= &panic_on_oops,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +	{
> +		.procname	= "panic_print",
> +		.data		= &panic_print,
> +		.maxlen		= sizeof(unsigned long),
> +		.mode		= 0644,
> +		.proc_handler	= proc_doulongvec_minmax,
> +	},
> +#if defined CONFIG_PRINTK
> +	{
> +		.procname	= "printk",
> +		.data		= &console_loglevel,
> +		.maxlen		= 4*sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +	{
> +		.procname	= "printk_ratelimit",
> +		.data		= &printk_ratelimit_state.interval,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_jiffies,
> +	},
> +	{
> +		.procname	= "printk_ratelimit_burst",
> +		.data		= &printk_ratelimit_state.burst,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +	{
> +		.procname	= "printk_delay",
> +		.data		= &printk_delay_msec,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= &ten_thousand,
> +	},
> +	{
> +		.procname	= "printk_devkmsg",
> +		.data		= devkmsg_log_str,
> +		.maxlen		= DEVKMSG_STR_MAX_SIZE,
> +		.mode		= 0644,
> +		.proc_handler	= devkmsg_sysctl_set_loglvl,
> +	},
> +	{
> +		.procname	= "dmesg_restrict",
> +		.data		= &dmesg_restrict,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax_sysadmin,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +	{
> +		.procname	= "kptr_restrict",
> +		.data		= &kptr_restrict,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax_sysadmin,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= &two,
> +	},
> +#endif
> +	{
> +		.procname	= "ngroups_max",
> +		.data		= &ngroups_max,
> +		.maxlen		= sizeof (int),
> +		.mode		= 0444,
> +		.proc_handler	= proc_dointvec,
> +	},
> +	{
> +		.procname	= "cap_last_cap",
> +		.data		= (void *)&cap_last_cap,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0444,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#if defined(CONFIG_LOCKUP_DETECTOR)
> +	{
> +		.procname       = "watchdog",
> +		.data		= &watchdog_user_enabled,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler   = proc_watchdog,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +	{
> +		.procname	= "watchdog_thresh",
> +		.data		= &watchdog_thresh,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_watchdog_thresh,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= &sixty,
> +	},
> +	{
> +		.procname       = "nmi_watchdog",
> +		.data		= &nmi_watchdog_user_enabled,
> +		.maxlen		= sizeof(int),
> +		.mode		= NMI_WATCHDOG_SYSCTL_PERM,
> +		.proc_handler   = proc_nmi_watchdog,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +	{
> +		.procname	= "watchdog_cpumask",
> +		.data		= &watchdog_cpumask_bits,
> +		.maxlen		= NR_CPUS,
> +		.mode		= 0644,
> +		.proc_handler	= proc_watchdog_cpumask,
> +	},
> +#ifdef CONFIG_SOFTLOCKUP_DETECTOR
> +	{
> +		.procname       = "soft_watchdog",
> +		.data		= &soft_watchdog_user_enabled,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler   = proc_soft_watchdog,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +	{
> +		.procname	= "softlockup_panic",
> +		.data		= &softlockup_panic,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +#ifdef CONFIG_SMP
> +	{
> +		.procname	= "softlockup_all_cpu_backtrace",
> +		.data		= &sysctl_softlockup_all_cpu_backtrace,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +#endif /* CONFIG_SMP */
> +#endif
> +#ifdef CONFIG_HARDLOCKUP_DETECTOR
> +	{
> +		.procname	= "hardlockup_panic",
> +		.data		= &hardlockup_panic,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +#ifdef CONFIG_SMP
> +	{
> +		.procname	= "hardlockup_all_cpu_backtrace",
> +		.data		= &sysctl_hardlockup_all_cpu_backtrace,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +#endif /* CONFIG_SMP */
> +#endif
> +#endif
> +
> +#if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86)
> +	{
> +		.procname       = "unknown_nmi_panic",
> +		.data           = &unknown_nmi_panic,
> +		.maxlen         = sizeof (int),
> +		.mode           = 0644,
> +		.proc_handler   = proc_dointvec,
> +	},
> +#endif
> +#if defined(CONFIG_X86)
> +	{
> +		.procname	= "panic_on_unrecovered_nmi",
> +		.data		= &panic_on_unrecovered_nmi,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +	{
> +		.procname	= "panic_on_io_nmi",
> +		.data		= &panic_on_io_nmi,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#ifdef CONFIG_DEBUG_STACKOVERFLOW
> +	{
> +		.procname	= "panic_on_stackoverflow",
> +		.data		= &sysctl_panic_on_stackoverflow,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#endif
> +	{
> +		.procname	= "bootloader_type",
> +		.data		= &bootloader_type,
> +		.maxlen		= sizeof (int),
> +		.mode		= 0444,
> +		.proc_handler	= proc_dointvec,
> +	},
> +	{
> +		.procname	= "bootloader_version",
> +		.data		= &bootloader_version,
> +		.maxlen		= sizeof (int),
> +		.mode		= 0444,
> +		.proc_handler	= proc_dointvec,
> +	},
> +	{
> +		.procname	= "io_delay_type",
> +		.data		= &io_delay_type,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#endif
> +#if defined(CONFIG_MMU)
> +	{
> +		.procname	= "randomize_va_space",
> +		.data		= &randomize_va_space,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#endif
> +#if defined(CONFIG_S390) && defined(CONFIG_SMP)
> +	{
> +		.procname	= "spin_retry",
> +		.data		= &spin_retry,
> +		.maxlen		= sizeof (int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#endif
> +#if	defined(CONFIG_ACPI_SLEEP) && defined(CONFIG_X86)
> +	{
> +		.procname	= "acpi_video_flags",
> +		.data		= &acpi_realmode_flags,
> +		.maxlen		= sizeof (unsigned long),
> +		.mode		= 0644,
> +		.proc_handler	= proc_doulongvec_minmax,
> +	},
> +#endif
> +#ifdef CONFIG_SYSCTL_ARCH_UNALIGN_NO_WARN
> +	{
> +		.procname	= "ignore-unaligned-usertrap",
> +		.data		= &no_unaligned_warning,
> +		.maxlen		= sizeof (int),
> +	 	.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#endif
> +#ifdef CONFIG_IA64
> +	{
> +		.procname	= "unaligned-dump-stack",
> +		.data		= &unaligned_dump_stack,
> +		.maxlen		= sizeof (int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#endif
> +#ifdef CONFIG_DETECT_HUNG_TASK
> +	{
> +		.procname	= "hung_task_panic",
> +		.data		= &sysctl_hung_task_panic,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +	{
> +		.procname	= "hung_task_check_count",
> +		.data		= &sysctl_hung_task_check_count,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +	},
> +	{
> +		.procname	= "hung_task_timeout_secs",
> +		.data		= &sysctl_hung_task_timeout_secs,
> +		.maxlen		= sizeof(unsigned long),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dohung_task_timeout_secs,
> +		.extra2		= &hung_task_timeout_max,
> +	},
> +	{
> +		.procname	= "hung_task_check_interval_secs",
> +		.data		= &sysctl_hung_task_check_interval_secs,
> +		.maxlen		= sizeof(unsigned long),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dohung_task_timeout_secs,
> +		.extra2		= &hung_task_timeout_max,
> +	},
> +	{
> +		.procname	= "hung_task_warnings",
> +		.data		= &sysctl_hung_task_warnings,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= &neg_one,
> +	},
> +#endif
> +#ifdef CONFIG_RT_MUTEXES
> +	{
> +		.procname	= "max_lock_depth",
> +		.data		= &max_lock_depth,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#endif
> +	{
> +		.procname	= "poweroff_cmd",
> +		.data		= &poweroff_cmd,
> +		.maxlen		= POWEROFF_CMD_PATH_LEN,
> +		.mode		= 0644,
> +		.proc_handler	= proc_dostring,
> +	},
> +#ifdef CONFIG_KEYS
> +	{
> +		.procname	= "keys",
> +		.mode		= 0555,
> +		.child		= key_sysctls,
> +	},
> +#endif
> +#ifdef CONFIG_PERF_EVENTS
> +	/*
> +	 * User-space scripts rely on the existence of this file
> +	 * as a feature check for perf_events being enabled.
> +	 *
> +	 * So it's an ABI, do not remove!
> +	 */
> +	{
> +		.procname	= "perf_event_paranoid",
> +		.data		= &sysctl_perf_event_paranoid,
> +		.maxlen		= sizeof(sysctl_perf_event_paranoid),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +	{
> +		.procname	= "perf_event_mlock_kb",
> +		.data		= &sysctl_perf_event_mlock,
> +		.maxlen		= sizeof(sysctl_perf_event_mlock),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +	{
> +		.procname	= "perf_event_max_sample_rate",
> +		.data		= &sysctl_perf_event_sample_rate,
> +		.maxlen		= sizeof(sysctl_perf_event_sample_rate),
> +		.mode		= 0644,
> +		.proc_handler	= perf_proc_update_handler,
> +		.extra1		= SYSCTL_ONE,
> +	},
> +	{
> +		.procname	= "perf_cpu_time_max_percent",
> +		.data		= &sysctl_perf_cpu_time_max_percent,
> +		.maxlen		= sizeof(sysctl_perf_cpu_time_max_percent),
> +		.mode		= 0644,
> +		.proc_handler	= perf_cpu_time_max_percent_handler,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= &one_hundred,
> +	},
> +	{
> +		.procname	= "perf_event_max_stack",
> +		.data		= &sysctl_perf_event_max_stack,
> +		.maxlen		= sizeof(sysctl_perf_event_max_stack),
> +		.mode		= 0644,
> +		.proc_handler	= perf_event_max_stack_handler,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= &six_hundred_forty_kb,
> +	},
> +	{
> +		.procname	= "perf_event_max_contexts_per_stack",
> +		.data		= &sysctl_perf_event_max_contexts_per_stack,
> +		.maxlen		= sizeof(sysctl_perf_event_max_contexts_per_stack),
> +		.mode		= 0644,
> +		.proc_handler	= perf_event_max_stack_handler,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= &one_thousand,
> +	},
> +#endif
> +	{
> +		.procname	= "panic_on_warn",
> +		.data		= &panic_on_warn,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +#if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON)
> +	{
> +		.procname	= "timer_migration",
> +		.data		= &sysctl_timer_migration,
> +		.maxlen		= sizeof(unsigned int),
> +		.mode		= 0644,
> +		.proc_handler	= timer_migration_handler,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +#endif
> +#ifdef CONFIG_BPF_SYSCALL
> +	{
> +		.procname	= "unprivileged_bpf_disabled",
> +		.data		= &sysctl_unprivileged_bpf_disabled,
> +		.maxlen		= sizeof(sysctl_unprivileged_bpf_disabled),
> +		.mode		= 0644,
> +		/* only handle a transition from default "0" to "1" */
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ONE,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +	{
> +		.procname	= "bpf_stats_enabled",
> +		.data		= &bpf_stats_enabled_key.key,
> +		.maxlen		= sizeof(bpf_stats_enabled_key),
> +		.mode		= 0644,
> +		.proc_handler	= proc_do_static_key,
> +	},
> +#endif
> +#if defined(CONFIG_TREE_RCU)
> +	{
> +		.procname	= "panic_on_rcu_stall",
> +		.data		= &sysctl_panic_on_rcu_stall,
> +		.maxlen		= sizeof(sysctl_panic_on_rcu_stall),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +#endif
> +#ifdef CONFIG_STACKLEAK_RUNTIME_DISABLE
> +	{
> +		.procname	= "stack_erasing",
> +		.data		= NULL,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0600,
> +		.proc_handler	= stack_erasing_sysctl,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +#endif
> +	{ }
> +};
>  
> -int proc_dointvec_ms_jiffies(struct ctl_table *table, int write,
> -			     void __user *buffer, size_t *lenp, loff_t *ppos)
> -{
> -	return -ENOSYS;
> -}
> +static struct ctl_table vm_table[] = {
> +	{
> +		.procname	= "overcommit_memory",
> +		.data		= &sysctl_overcommit_memory,
> +		.maxlen		= sizeof(sysctl_overcommit_memory),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= &two,
> +	},
> +	{
> +		.procname	= "panic_on_oom",
> +		.data		= &sysctl_panic_on_oom,
> +		.maxlen		= sizeof(sysctl_panic_on_oom),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= &two,
> +	},
> +	{
> +		.procname	= "oom_kill_allocating_task",
> +		.data		= &sysctl_oom_kill_allocating_task,
> +		.maxlen		= sizeof(sysctl_oom_kill_allocating_task),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +	{
> +		.procname	= "oom_dump_tasks",
> +		.data		= &sysctl_oom_dump_tasks,
> +		.maxlen		= sizeof(sysctl_oom_dump_tasks),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +	{
> +		.procname	= "overcommit_ratio",
> +		.data		= &sysctl_overcommit_ratio,
> +		.maxlen		= sizeof(sysctl_overcommit_ratio),
> +		.mode		= 0644,
> +		.proc_handler	= overcommit_ratio_handler,
> +	},
> +	{
> +		.procname	= "overcommit_kbytes",
> +		.data		= &sysctl_overcommit_kbytes,
> +		.maxlen		= sizeof(sysctl_overcommit_kbytes),
> +		.mode		= 0644,
> +		.proc_handler	= overcommit_kbytes_handler,
> +	},
> +	{
> +		.procname	= "page-cluster", 
> +		.data		= &page_cluster,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +	},
> +	{
> +		.procname	= "dirty_background_ratio",
> +		.data		= &dirty_background_ratio,
> +		.maxlen		= sizeof(dirty_background_ratio),
> +		.mode		= 0644,
> +		.proc_handler	= dirty_background_ratio_handler,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= &one_hundred,
> +	},
> +	{
> +		.procname	= "dirty_background_bytes",
> +		.data		= &dirty_background_bytes,
> +		.maxlen		= sizeof(dirty_background_bytes),
> +		.mode		= 0644,
> +		.proc_handler	= dirty_background_bytes_handler,
> +		.extra1		= &one_ul,
> +	},
> +	{
> +		.procname	= "dirty_ratio",
> +		.data		= &vm_dirty_ratio,
> +		.maxlen		= sizeof(vm_dirty_ratio),
> +		.mode		= 0644,
> +		.proc_handler	= dirty_ratio_handler,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= &one_hundred,
> +	},
> +	{
> +		.procname	= "dirty_bytes",
> +		.data		= &vm_dirty_bytes,
> +		.maxlen		= sizeof(vm_dirty_bytes),
> +		.mode		= 0644,
> +		.proc_handler	= dirty_bytes_handler,
> +		.extra1		= &dirty_bytes_min,
> +	},
> +	{
> +		.procname	= "dirty_writeback_centisecs",
> +		.data		= &dirty_writeback_interval,
> +		.maxlen		= sizeof(dirty_writeback_interval),
> +		.mode		= 0644,
> +		.proc_handler	= dirty_writeback_centisecs_handler,
> +	},
> +	{
> +		.procname	= "dirty_expire_centisecs",
> +		.data		= &dirty_expire_interval,
> +		.maxlen		= sizeof(dirty_expire_interval),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +	},
> +	{
> +		.procname	= "dirtytime_expire_seconds",
> +		.data		= &dirtytime_expire_interval,
> +		.maxlen		= sizeof(dirtytime_expire_interval),
> +		.mode		= 0644,
> +		.proc_handler	= dirtytime_interval_handler,
> +		.extra1		= SYSCTL_ZERO,
> +	},
> +	{
> +		.procname	= "swappiness",
> +		.data		= &vm_swappiness,
> +		.maxlen		= sizeof(vm_swappiness),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= &one_hundred,
> +	},
> +#ifdef CONFIG_HUGETLB_PAGE
> +	{
> +		.procname	= "nr_hugepages",
> +		.data		= NULL,
> +		.maxlen		= sizeof(unsigned long),
> +		.mode		= 0644,
> +		.proc_handler	= hugetlb_sysctl_handler,
> +	},
> +#ifdef CONFIG_NUMA
> +	{
> +		.procname       = "nr_hugepages_mempolicy",
> +		.data           = NULL,
> +		.maxlen         = sizeof(unsigned long),
> +		.mode           = 0644,
> +		.proc_handler   = &hugetlb_mempolicy_sysctl_handler,
> +	},
> +	{
> +		.procname		= "numa_stat",
> +		.data			= &sysctl_vm_numa_stat,
> +		.maxlen			= sizeof(int),
> +		.mode			= 0644,
> +		.proc_handler	= sysctl_vm_numa_stat_handler,
> +		.extra1			= SYSCTL_ZERO,
> +		.extra2			= SYSCTL_ONE,
> +	},
> +#endif
> +	 {
> +		.procname	= "hugetlb_shm_group",
> +		.data		= &sysctl_hugetlb_shm_group,
> +		.maxlen		= sizeof(gid_t),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	 },
> +	{
> +		.procname	= "nr_overcommit_hugepages",
> +		.data		= NULL,
> +		.maxlen		= sizeof(unsigned long),
> +		.mode		= 0644,
> +		.proc_handler	= hugetlb_overcommit_handler,
> +	},
> +#endif
> +	{
> +		.procname	= "lowmem_reserve_ratio",
> +		.data		= &sysctl_lowmem_reserve_ratio,
> +		.maxlen		= sizeof(sysctl_lowmem_reserve_ratio),
> +		.mode		= 0644,
> +		.proc_handler	= lowmem_reserve_ratio_sysctl_handler,
> +	},
> +	{
> +		.procname	= "drop_caches",
> +		.data		= &sysctl_drop_caches,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0200,
> +		.proc_handler	= drop_caches_sysctl_handler,
> +		.extra1		= SYSCTL_ONE,
> +		.extra2		= &four,
> +	},
> +#ifdef CONFIG_COMPACTION
> +	{
> +		.procname	= "compact_memory",
> +		.data		= &sysctl_compact_memory,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0200,
> +		.proc_handler	= sysctl_compaction_handler,
> +	},
> +	{
> +		.procname	= "extfrag_threshold",
> +		.data		= &sysctl_extfrag_threshold,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= &min_extfrag_threshold,
> +		.extra2		= &max_extfrag_threshold,
> +	},
> +	{
> +		.procname	= "compact_unevictable_allowed",
> +		.data		= &sysctl_compact_unevictable_allowed,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax_warn_RT_change,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +
> +#endif /* CONFIG_COMPACTION */
> +	{
> +		.procname	= "min_free_kbytes",
> +		.data		= &min_free_kbytes,
> +		.maxlen		= sizeof(min_free_kbytes),
> +		.mode		= 0644,
> +		.proc_handler	= min_free_kbytes_sysctl_handler,
> +		.extra1		= SYSCTL_ZERO,
> +	},
> +	{
> +		.procname	= "watermark_boost_factor",
> +		.data		= &watermark_boost_factor,
> +		.maxlen		= sizeof(watermark_boost_factor),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +	},
> +	{
> +		.procname	= "watermark_scale_factor",
> +		.data		= &watermark_scale_factor,
> +		.maxlen		= sizeof(watermark_scale_factor),
> +		.mode		= 0644,
> +		.proc_handler	= watermark_scale_factor_sysctl_handler,
> +		.extra1		= SYSCTL_ONE,
> +		.extra2		= &one_thousand,
> +	},
> +	{
> +		.procname	= "percpu_pagelist_fraction",
> +		.data		= &percpu_pagelist_fraction,
> +		.maxlen		= sizeof(percpu_pagelist_fraction),
> +		.mode		= 0644,
> +		.proc_handler	= percpu_pagelist_fraction_sysctl_handler,
> +		.extra1		= SYSCTL_ZERO,
> +	},
> +#ifdef CONFIG_MMU
> +	{
> +		.procname	= "max_map_count",
> +		.data		= &sysctl_max_map_count,
> +		.maxlen		= sizeof(sysctl_max_map_count),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +	},
> +#else
> +	{
> +		.procname	= "nr_trim_pages",
> +		.data		= &sysctl_nr_trim_pages,
> +		.maxlen		= sizeof(sysctl_nr_trim_pages),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +	},
> +#endif
> +	{
> +		.procname	= "laptop_mode",
> +		.data		= &laptop_mode,
> +		.maxlen		= sizeof(laptop_mode),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_jiffies,
> +	},
> +	{
> +		.procname	= "block_dump",
> +		.data		= &block_dump,
> +		.maxlen		= sizeof(block_dump),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +		.extra1		= SYSCTL_ZERO,
> +	},
> +	{
> +		.procname	= "vfs_cache_pressure",
> +		.data		= &sysctl_vfs_cache_pressure,
> +		.maxlen		= sizeof(sysctl_vfs_cache_pressure),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +		.extra1		= SYSCTL_ZERO,
> +	},
> +#if defined(HAVE_ARCH_PICK_MMAP_LAYOUT) || \
> +    defined(CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT)
> +	{
> +		.procname	= "legacy_va_layout",
> +		.data		= &sysctl_legacy_va_layout,
> +		.maxlen		= sizeof(sysctl_legacy_va_layout),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +		.extra1		= SYSCTL_ZERO,
> +	},
> +#endif
> +#ifdef CONFIG_NUMA
> +	{
> +		.procname	= "zone_reclaim_mode",
> +		.data		= &node_reclaim_mode,
> +		.maxlen		= sizeof(node_reclaim_mode),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +		.extra1		= SYSCTL_ZERO,
> +	},
> +	{
> +		.procname	= "min_unmapped_ratio",
> +		.data		= &sysctl_min_unmapped_ratio,
> +		.maxlen		= sizeof(sysctl_min_unmapped_ratio),
> +		.mode		= 0644,
> +		.proc_handler	= sysctl_min_unmapped_ratio_sysctl_handler,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= &one_hundred,
> +	},
> +	{
> +		.procname	= "min_slab_ratio",
> +		.data		= &sysctl_min_slab_ratio,
> +		.maxlen		= sizeof(sysctl_min_slab_ratio),
> +		.mode		= 0644,
> +		.proc_handler	= sysctl_min_slab_ratio_sysctl_handler,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= &one_hundred,
> +	},
> +#endif
> +#ifdef CONFIG_SMP
> +	{
> +		.procname	= "stat_interval",
> +		.data		= &sysctl_stat_interval,
> +		.maxlen		= sizeof(sysctl_stat_interval),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_jiffies,
> +	},
> +	{
> +		.procname	= "stat_refresh",
> +		.data		= NULL,
> +		.maxlen		= 0,
> +		.mode		= 0600,
> +		.proc_handler	= vmstat_refresh,
> +	},
> +#endif
> +#ifdef CONFIG_MMU
> +	{
> +		.procname	= "mmap_min_addr",
> +		.data		= &dac_mmap_min_addr,
> +		.maxlen		= sizeof(unsigned long),
> +		.mode		= 0644,
> +		.proc_handler	= mmap_min_addr_handler,
> +	},
> +#endif
> +#ifdef CONFIG_NUMA
> +	{
> +		.procname	= "numa_zonelist_order",
> +		.data		= &numa_zonelist_order,
> +		.maxlen		= NUMA_ZONELIST_ORDER_LEN,
> +		.mode		= 0644,
> +		.proc_handler	= numa_zonelist_order_handler,
> +	},
> +#endif
> +#if (defined(CONFIG_X86_32) && !defined(CONFIG_UML))|| \
> +   (defined(CONFIG_SUPERH) && defined(CONFIG_VSYSCALL))
> +	{
> +		.procname	= "vdso_enabled",
> +#ifdef CONFIG_X86_32
> +		.data		= &vdso32_enabled,
> +		.maxlen		= sizeof(vdso32_enabled),
> +#else
> +		.data		= &vdso_enabled,
> +		.maxlen		= sizeof(vdso_enabled),
> +#endif
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +		.extra1		= SYSCTL_ZERO,
> +	},
> +#endif
> +#ifdef CONFIG_HIGHMEM
> +	{
> +		.procname	= "highmem_is_dirtyable",
> +		.data		= &vm_highmem_is_dirtyable,
> +		.maxlen		= sizeof(vm_highmem_is_dirtyable),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +#endif
> +#ifdef CONFIG_MEMORY_FAILURE
> +	{
> +		.procname	= "memory_failure_early_kill",
> +		.data		= &sysctl_memory_failure_early_kill,
> +		.maxlen		= sizeof(sysctl_memory_failure_early_kill),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +	{
> +		.procname	= "memory_failure_recovery",
> +		.data		= &sysctl_memory_failure_recovery,
> +		.maxlen		= sizeof(sysctl_memory_failure_recovery),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +#endif
> +	{
> +		.procname	= "user_reserve_kbytes",
> +		.data		= &sysctl_user_reserve_kbytes,
> +		.maxlen		= sizeof(sysctl_user_reserve_kbytes),
> +		.mode		= 0644,
> +		.proc_handler	= proc_doulongvec_minmax,
> +	},
> +	{
> +		.procname	= "admin_reserve_kbytes",
> +		.data		= &sysctl_admin_reserve_kbytes,
> +		.maxlen		= sizeof(sysctl_admin_reserve_kbytes),
> +		.mode		= 0644,
> +		.proc_handler	= proc_doulongvec_minmax,
> +	},
> +#ifdef CONFIG_HAVE_ARCH_MMAP_RND_BITS
> +	{
> +		.procname	= "mmap_rnd_bits",
> +		.data		= &mmap_rnd_bits,
> +		.maxlen		= sizeof(mmap_rnd_bits),
> +		.mode		= 0600,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= (void *)&mmap_rnd_bits_min,
> +		.extra2		= (void *)&mmap_rnd_bits_max,
> +	},
> +#endif
> +#ifdef CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS
> +	{
> +		.procname	= "mmap_rnd_compat_bits",
> +		.data		= &mmap_rnd_compat_bits,
> +		.maxlen		= sizeof(mmap_rnd_compat_bits),
> +		.mode		= 0600,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= (void *)&mmap_rnd_compat_bits_min,
> +		.extra2		= (void *)&mmap_rnd_compat_bits_max,
> +	},
> +#endif
> +#ifdef CONFIG_USERFAULTFD
> +	{
> +		.procname	= "unprivileged_userfaultfd",
> +		.data		= &sysctl_unprivileged_userfaultfd,
> +		.maxlen		= sizeof(sysctl_unprivileged_userfaultfd),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +#endif
> +	{ }
> +};
>  
> -int proc_doulongvec_minmax(struct ctl_table *table, int write,
> -		    void __user *buffer, size_t *lenp, loff_t *ppos)
> -{
> -	return -ENOSYS;
> -}
> +static struct ctl_table fs_table[] = {
> +	{
> +		.procname	= "inode-nr",
> +		.data		= &inodes_stat,
> +		.maxlen		= 2*sizeof(long),
> +		.mode		= 0444,
> +		.proc_handler	= proc_nr_inodes,
> +	},
> +	{
> +		.procname	= "inode-state",
> +		.data		= &inodes_stat,
> +		.maxlen		= 7*sizeof(long),
> +		.mode		= 0444,
> +		.proc_handler	= proc_nr_inodes,
> +	},
> +	{
> +		.procname	= "file-nr",
> +		.data		= &files_stat,
> +		.maxlen		= sizeof(files_stat),
> +		.mode		= 0444,
> +		.proc_handler	= proc_nr_files,
> +	},
> +	{
> +		.procname	= "file-max",
> +		.data		= &files_stat.max_files,
> +		.maxlen		= sizeof(files_stat.max_files),
> +		.mode		= 0644,
> +		.proc_handler	= proc_doulongvec_minmax,
> +		.extra1		= &zero_ul,
> +		.extra2		= &long_max,
> +	},
> +	{
> +		.procname	= "nr_open",
> +		.data		= &sysctl_nr_open,
> +		.maxlen		= sizeof(unsigned int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= &sysctl_nr_open_min,
> +		.extra2		= &sysctl_nr_open_max,
> +	},
> +	{
> +		.procname	= "dentry-state",
> +		.data		= &dentry_stat,
> +		.maxlen		= 6*sizeof(long),
> +		.mode		= 0444,
> +		.proc_handler	= proc_nr_dentry,
> +	},
> +	{
> +		.procname	= "overflowuid",
> +		.data		= &fs_overflowuid,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= &minolduid,
> +		.extra2		= &maxolduid,
> +	},
> +	{
> +		.procname	= "overflowgid",
> +		.data		= &fs_overflowgid,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= &minolduid,
> +		.extra2		= &maxolduid,
> +	},
> +#ifdef CONFIG_FILE_LOCKING
> +	{
> +		.procname	= "leases-enable",
> +		.data		= &leases_enable,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#endif
> +#ifdef CONFIG_DNOTIFY
> +	{
> +		.procname	= "dir-notify-enable",
> +		.data		= &dir_notify_enable,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#endif
> +#ifdef CONFIG_MMU
> +#ifdef CONFIG_FILE_LOCKING
> +	{
> +		.procname	= "lease-break-time",
> +		.data		= &lease_break_time,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec,
> +	},
> +#endif
> +#ifdef CONFIG_AIO
> +	{
> +		.procname	= "aio-nr",
> +		.data		= &aio_nr,
> +		.maxlen		= sizeof(aio_nr),
> +		.mode		= 0444,
> +		.proc_handler	= proc_doulongvec_minmax,
> +	},
> +	{
> +		.procname	= "aio-max-nr",
> +		.data		= &aio_max_nr,
> +		.maxlen		= sizeof(aio_max_nr),
> +		.mode		= 0644,
> +		.proc_handler	= proc_doulongvec_minmax,
> +	},
> +#endif /* CONFIG_AIO */
> +#ifdef CONFIG_INOTIFY_USER
> +	{
> +		.procname	= "inotify",
> +		.mode		= 0555,
> +		.child		= inotify_table,
> +	},
> +#endif	
> +#ifdef CONFIG_EPOLL
> +	{
> +		.procname	= "epoll",
> +		.mode		= 0555,
> +		.child		= epoll_table,
> +	},
> +#endif
> +#endif
> +	{
> +		.procname	= "protected_symlinks",
> +		.data		= &sysctl_protected_symlinks,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0600,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +	{
> +		.procname	= "protected_hardlinks",
> +		.data		= &sysctl_protected_hardlinks,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0600,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +	{
> +		.procname	= "protected_fifos",
> +		.data		= &sysctl_protected_fifos,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0600,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= &two,
> +	},
> +	{
> +		.procname	= "protected_regular",
> +		.data		= &sysctl_protected_regular,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0600,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= &two,
> +	},
> +	{
> +		.procname	= "suid_dumpable",
> +		.data		= &suid_dumpable,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax_coredump,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= &two,
> +	},
> +#if defined(CONFIG_BINFMT_MISC) || defined(CONFIG_BINFMT_MISC_MODULE)
> +	{
> +		.procname	= "binfmt_misc",
> +		.mode		= 0555,
> +		.child		= sysctl_mount_point,
> +	},
> +#endif
> +	{
> +		.procname	= "pipe-max-size",
> +		.data		= &pipe_max_size,
> +		.maxlen		= sizeof(pipe_max_size),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dopipe_max_size,
> +	},
> +	{
> +		.procname	= "pipe-user-pages-hard",
> +		.data		= &pipe_user_pages_hard,
> +		.maxlen		= sizeof(pipe_user_pages_hard),
> +		.mode		= 0644,
> +		.proc_handler	= proc_doulongvec_minmax,
> +	},
> +	{
> +		.procname	= "pipe-user-pages-soft",
> +		.data		= &pipe_user_pages_soft,
> +		.maxlen		= sizeof(pipe_user_pages_soft),
> +		.mode		= 0644,
> +		.proc_handler	= proc_doulongvec_minmax,
> +	},
> +	{
> +		.procname	= "mount-max",
> +		.data		= &sysctl_mount_max,
> +		.maxlen		= sizeof(unsigned int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= SYSCTL_ONE,
> +	},
> +	{ }
> +};
>  
> -int proc_doulongvec_ms_jiffies_minmax(struct ctl_table *table, int write,
> -				      void __user *buffer,
> -				      size_t *lenp, loff_t *ppos)
> -{
> -    return -ENOSYS;
> -}
> +static struct ctl_table debug_table[] = {
> +#ifdef CONFIG_SYSCTL_EXCEPTION_TRACE
> +	{
> +		.procname	= "exception-trace",
> +		.data		= &show_unhandled_signals,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec
> +	},
> +#endif
> +#if defined(CONFIG_OPTPROBES)
> +	{
> +		.procname	= "kprobes-optimization",
> +		.data		= &sysctl_kprobes_optimization,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_kprobes_optimization_handler,
> +		.extra1		= SYSCTL_ZERO,
> +		.extra2		= SYSCTL_ONE,
> +	},
> +#endif
> +	{ }
> +};
>  
> -int proc_do_large_bitmap(struct ctl_table *table, int write,
> -			 void __user *buffer, size_t *lenp, loff_t *ppos)
> -{
> -	return -ENOSYS;
> -}
> +static struct ctl_table dev_table[] = {
> +	{ }
> +};
>  
> -#endif /* CONFIG_PROC_SYSCTL */
> +static struct ctl_table sysctl_base_table[] = {
> +	{
> +		.procname	= "kernel",
> +		.mode		= 0555,
> +		.child		= kern_table,
> +	},
> +	{
> +		.procname	= "vm",
> +		.mode		= 0555,
> +		.child		= vm_table,
> +	},
> +	{
> +		.procname	= "fs",
> +		.mode		= 0555,
> +		.child		= fs_table,
> +	},
> +	{
> +		.procname	= "debug",
> +		.mode		= 0555,
> +		.child		= debug_table,
> +	},
> +	{
> +		.procname	= "dev",
> +		.mode		= 0555,
> +		.child		= dev_table,
> +	},
> +	{ }
> +};
>  
> -#if defined(CONFIG_SYSCTL)
> -int proc_do_static_key(struct ctl_table *table, int write,
> -		       void __user *buffer, size_t *lenp,
> -		       loff_t *ppos)
> +int __init sysctl_init(void)
>  {
> -	struct static_key *key = (struct static_key *)table->data;
> -	static DEFINE_MUTEX(static_key_mutex);
> -	int val, ret;
> -	struct ctl_table tmp = {
> -		.data   = &val,
> -		.maxlen = sizeof(val),
> -		.mode   = table->mode,
> -		.extra1 = SYSCTL_ZERO,
> -		.extra2 = SYSCTL_ONE,
> -	};
> -
> -	if (write && !capable(CAP_SYS_ADMIN))
> -		return -EPERM;
> +	struct ctl_table_header *hdr;
>  
> -	mutex_lock(&static_key_mutex);
> -	val = static_key_enabled(key);
> -	ret = proc_dointvec_minmax(&tmp, write, buffer, lenp, ppos);
> -	if (write && !ret) {
> -		if (val)
> -			static_key_enable(key);
> -		else
> -			static_key_disable(key);
> -	}
> -	mutex_unlock(&static_key_mutex);
> -	return ret;
> +	hdr = register_sysctl_table(sysctl_base_table);
> +	kmemleak_not_leak(hdr);
> +	return 0;
>  }
> -#endif
> +#endif /* CONFIG_SYSCTL */
>  /*
>   * No sense putting this after each symbol definition, twice,
>   * exception granted :-)
> -- 
> 2.26.1
> 

-- 
Kees Cook




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