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Date:   Mon, 11 May 2020 11:11:23 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Al Viro <viro@...IV.linux.org.uk>, Helge Deller <deller@....de>,
        Parisc List <linux-parisc@...r.kernel.org>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Xiaoming Ni <nixiaoming@...wei.com>,
        Christoph Hellwig <hch@....de>
Subject: linux-next: manual merge of the vfs tree with the parisc-hd tree

Hi all,

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

  kernel/sysctl.c

between commit:

  b6522fa409cf ("parisc: add sysctl file interface panic_on_stackoverflow")

from the parisc-hd tree and commit:

  f461d2dcd511 ("sysctl: avoid forward declarations")

from the vfs 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 b9ff323e1d26,e961286d0e14..000000000000
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@@ -3372,71 -1576,1732 +1576,1734 @@@ int proc_do_large_bitmap(struct ctl_tab
  	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 *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)
++
++#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
+ 	{
+ 		.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,
+ 	},
  
- 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 :-)

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