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

From: Kees Cook
Date: Mon May 04 2020 - 14:45:07 EST

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

Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>

-Kees

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

--
Kees Cook

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