Subject: linux-next: manual merge of the akpm-current tree with the bpf-next tree

From: Stephen Rothwell <[email-masked]>
Date: Wed, 29 Apr 2020 16:45:07 +1000

Hi all,

Today's linux-next merge of the akpm-current tree got a conflict in:

  kernel/sysctl.c

between commit:

  f461d2dcd511 ("sysctl: avoid forward declarations")

from the bpf-next tree and commits:

  0fe73f87ba37 ("parisc: add sysctl file interface panic_on_stackoverflow")
  631b6d13906c ("kernel/hung_task.c: introduce sysctl to print all traces when a hung task is detected")
  0defdd249368 ("panic: add sysctl to dump all CPUs backtraces on oops event")

from the akpm-current tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

-- 
Cheers,
Stephen Rothwell

diff --cc kernel/sysctl.c
index e961286d0e14,d6e728e3e99f..000000000000
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@@ -1576,1732 -3376,89 +1576,1756 @@@ int proc_do_large_bitmap(struct ctl_tab
  	return -ENOSYS;
  }
  
 -int proc_dointvec_minmax(struct ctl_table *table, int write,
 -		    void __user *buffer, size_t *lenp, loff_t *ppos)
 +#endif /* CONFIG_PROC_SYSCTL */
 +
 +#if defined(CONFIG_SYSCTL)
 +int proc_do_static_key(struct ctl_table *table, int write,
 +		       void *buffer, size_t *lenp, loff_t *ppos)
  {
 -	return -ENOSYS;
 +	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;
  }
  
 -int proc_douintvec_minmax(struct ctl_table *table, int write,
 -			  void __user *buffer, size_t *lenp, loff_t *ppos)
 -{
 -	return -ENOSYS;
 -}
 +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
++#ifdef CONFIG_SMP
++	{
++		.procname	= "oops_all_cpu_backtrace",
++		.data		= &sysctl_oops_all_cpu_backtrace,
++		.maxlen		= sizeof(int),
++		.mode		= 0644,
++		.proc_handler	= proc_dointvec_minmax,
++		.extra1		= SYSCTL_ZERO,
++		.extra2		= SYSCTL_ONE,
++	},
++#endif /* CONFIG_SMP */
 +	{
 +		.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)
+ 
 -int proc_dointvec_jiffies(struct ctl_table *table, int write,
 -		    void __user *buffer, size_t *lenp, loff_t *ppos)
 -{
 -	return -ENOSYS;
 -}
++#if (defined(CONFIG_X86_32) || defined(CONFIG_PARISC)) && \
++	defined(CONFIG_DEBUG_STACKOVERFLOW)
 +	{
- 		.procname	= "panic_on_unrecovered_nmi",
- 		.data		= &panic_on_unrecovered_nmi,
++		.procname	= "panic_on_stackoverflow",
++		.data		= &sysctl_panic_on_stackoverflow,
 +		.maxlen		= sizeof(int),
 +		.mode		= 0644,
 +		.proc_handler	= proc_dointvec,
 +	},
++#endif
++#if defined(CONFIG_X86)
 +	{
- 		.procname	= "panic_on_io_nmi",
- 		.data		= &panic_on_io_nmi,
++		.procname	= "panic_on_unrecovered_nmi",
++		.data		= &panic_on_unrecovered_nmi,
 +		.maxlen		= sizeof(int),
 +		.mode		= 0644,
 +		.proc_handler	= proc_dointvec,
 +	},
- #ifdef CONFIG_DEBUG_STACKOVERFLOW
 +	{
- 		.procname	= "panic_on_stackoverflow",
- 		.data		= &sysctl_panic_on_stackoverflow,
++		.procname	= "panic_on_io_nmi",
++		.data		= &panic_on_io_nmi,
 +		.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
++#ifdef CONFIG_SMP
++	{
++		.procname	= "hung_task_all_cpu_backtrace",
++		.data		= &sysctl_hung_task_all_cpu_backtrace,
++		.maxlen		= sizeof(int),
++		.mode		= 0644,
++		.proc_handler	= proc_dointvec_minmax,
++		.extra1		= SYSCTL_ZERO,
++		.extra2		= SYSCTL_ONE,
++	},
++#endif /* CONFIG_SMP */
 +	{
 +		.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_userhz_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,
 +	},
  
 -int proc_dointvec_ms_jiffies(struct ctl_table *table, int write,
 -			     void __user *buffer, size_t *lenp, loff_t *ppos)
 -{
 -	return -ENOSYS;
 -}
 +#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 :-)