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kernel/sysctl.c
80.5 KB
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// SPDX-License-Identifier: GPL-2.0-only |
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/* * sysctl.c: General linux system control interface * * Begun 24 March 1995, Stephen Tweedie * Added /proc support, Dec 1995 * Added bdflush entry and intvec min/max checking, 2/23/96, Tom Dyas. * Added hooks for /proc/sys/net (minor, minor patch), 96/4/1, Mike Shaver. * Added kernel/java-{interpreter,appletviewer}, 96/5/10, Mike Shaver. * Dynamic registration fixes, Stephen Tweedie. * Added kswapd-interval, ctrl-alt-del, printk stuff, 1/8/97, Chris Horn. * Made sysctl support optional via CONFIG_SYSCTL, 1/10/97, Chris * Horn. * Added proc_doulongvec_ms_jiffies_minmax, 09/08/99, Carlos H. Bauer. * Added proc_doulongvec_minmax, 09/08/99, Carlos H. Bauer. * Changed linked lists to use list.h instead of lists.h, 02/24/00, Bill * Wendling. * The list_for_each() macro wasn't appropriate for the sysctl loop. * Removed it and replaced it with older style, 03/23/00, Bill Wendling */ |
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#include <linux/module.h> |
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#include <linux/aio.h> |
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#include <linux/mm.h> #include <linux/swap.h> #include <linux/slab.h> #include <linux/sysctl.h> |
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#include <linux/bitmap.h> |
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#include <linux/signal.h> |
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#include <linux/printk.h> |
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#include <linux/proc_fs.h> |
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#include <linux/security.h> |
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#include <linux/ctype.h> |
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#include <linux/kmemleak.h> |
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#include <linux/fs.h> |
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#include <linux/init.h> #include <linux/kernel.h> |
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#include <linux/kobject.h> |
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#include <linux/net.h> |
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#include <linux/sysrq.h> #include <linux/highuid.h> #include <linux/writeback.h> |
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#include <linux/ratelimit.h> |
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#include <linux/compaction.h> |
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#include <linux/hugetlb.h> |
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#include <linux/initrd.h> |
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#include <linux/key.h> |
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#include <linux/times.h> #include <linux/limits.h> #include <linux/dcache.h> |
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#include <linux/dnotify.h> |
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#include <linux/syscalls.h> |
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#include <linux/vmstat.h> |
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#include <linux/nfs_fs.h> #include <linux/acpi.h> |
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#include <linux/reboot.h> |
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#include <linux/ftrace.h> |
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#include <linux/perf_event.h> |
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#include <linux/kprobes.h> |
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#include <linux/pipe_fs_i.h> |
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#include <linux/oom.h> |
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#include <linux/kmod.h> |
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#include <linux/capability.h> |
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#include <linux/binfmts.h> |
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#include <linux/sched/sysctl.h> |
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#include <linux/sched/coredump.h> |
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#include <linux/kexec.h> |
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#include <linux/bpf.h> |
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#include <linux/mount.h> |
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#include <linux/userfaultfd_k.h> |
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#include "../lib/kstrtox.h" |
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#include <linux/uaccess.h> |
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#include <asm/processor.h> |
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#ifdef CONFIG_X86 #include <asm/nmi.h> |
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#include <asm/stacktrace.h> |
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#include <asm/io.h> |
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#endif |
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#ifdef CONFIG_SPARC #include <asm/setup.h> #endif |
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#ifdef CONFIG_BSD_PROCESS_ACCT #include <linux/acct.h> #endif |
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#ifdef CONFIG_RT_MUTEXES #include <linux/rtmutex.h> #endif |
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#if defined(CONFIG_PROVE_LOCKING) || defined(CONFIG_LOCK_STAT) #include <linux/lockdep.h> #endif |
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#ifdef CONFIG_CHR_DEV_SG #include <scsi/sg.h> #endif |
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#ifdef CONFIG_STACKLEAK_RUNTIME_DISABLE #include <linux/stackleak.h> #endif |
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#ifdef CONFIG_LOCKUP_DETECTOR |
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#include <linux/nmi.h> #endif |
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#if defined(CONFIG_SYSCTL) /* External variables not in a header file. */ |
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extern int suid_dumpable; |
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#ifdef CONFIG_COREDUMP extern int core_uses_pid; |
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extern char core_pattern[]; |
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extern unsigned int core_pipe_limit; |
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#endif |
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extern int pid_max; |
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extern int pid_max_min, pid_max_max; |
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extern int percpu_pagelist_fraction; |
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extern int latencytop_enabled; |
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extern unsigned int sysctl_nr_open_min, sysctl_nr_open_max; |
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#ifndef CONFIG_MMU extern int sysctl_nr_trim_pages; #endif |
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/* Constants used for minimum and maximum */ |
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#ifdef CONFIG_LOCKUP_DETECTOR |
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static int sixty = 60; #endif |
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static int __maybe_unused neg_one = -1; |
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static int __maybe_unused two = 2; |
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static int __maybe_unused four = 4; |
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static unsigned long zero_ul; |
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static unsigned long one_ul = 1; |
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static unsigned long long_max = LONG_MAX; |
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static int one_hundred = 100; |
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static int one_thousand = 1000; |
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#ifdef CONFIG_PRINTK static int ten_thousand = 10000; #endif |
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#ifdef CONFIG_PERF_EVENTS static int six_hundred_forty_kb = 640 * 1024; #endif |
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/* this is needed for the proc_doulongvec_minmax of vm_dirty_bytes */ static unsigned long dirty_bytes_min = 2 * PAGE_SIZE; |
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/* this is needed for the proc_dointvec_minmax for [fs_]overflow UID and GID */ static int maxolduid = 65535; static int minolduid; static int ngroups_max = NGROUPS_MAX; |
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static const int cap_last_cap = CAP_LAST_CAP; |
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/* * This is needed for proc_doulongvec_minmax of sysctl_hung_task_timeout_secs * and hung_task_check_interval_secs */ |
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#ifdef CONFIG_DETECT_HUNG_TASK static unsigned long hung_task_timeout_max = (LONG_MAX/HZ); #endif |
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#ifdef CONFIG_INOTIFY_USER #include <linux/inotify.h> #endif |
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#ifdef CONFIG_SPARC |
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#endif |
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#ifdef CONFIG_PARISC |
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extern int pwrsw_enabled; |
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#endif #ifdef CONFIG_SYSCTL_ARCH_UNALIGN_ALLOW |
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extern int unaligned_enabled; #endif |
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#ifdef CONFIG_IA64 |
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extern int unaligned_dump_stack; |
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#endif |
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#ifdef CONFIG_SYSCTL_ARCH_UNALIGN_NO_WARN extern int no_unaligned_warning; #endif |
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#ifdef CONFIG_PROC_SYSCTL |
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/** * enum sysctl_writes_mode - supported sysctl write modes * * @SYSCTL_WRITES_LEGACY: each write syscall must fully contain the sysctl value |
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* to be written, and multiple writes on the same sysctl file descriptor * will rewrite the sysctl value, regardless of file position. No warning * is issued when the initial position is not 0. |
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* @SYSCTL_WRITES_WARN: same as above but warn when the initial file position is |
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* not 0. |
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* @SYSCTL_WRITES_STRICT: writes to numeric sysctl entries must always be at |
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* file position 0 and the value must be fully contained in the buffer * sent to the write syscall. If dealing with strings respect the file * position, but restrict this to the max length of the buffer, anything * passed the max length will be ignored. Multiple writes will append * to the buffer. |
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* * These write modes control how current file position affects the behavior of * updating sysctl values through the proc interface on each write. */ enum sysctl_writes_mode { SYSCTL_WRITES_LEGACY = -1, SYSCTL_WRITES_WARN = 0, SYSCTL_WRITES_STRICT = 1, }; |
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static enum sysctl_writes_mode sysctl_writes_strict = SYSCTL_WRITES_STRICT; |
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static int proc_do_cad_pid(struct ctl_table *table, int write, |
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void __user *buffer, size_t *lenp, loff_t *ppos); |
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static int proc_taint(struct ctl_table *table, int write, |
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void __user *buffer, size_t *lenp, loff_t *ppos); |
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#endif |
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#ifdef CONFIG_PRINTK |
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static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write, |
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void __user *buffer, size_t *lenp, loff_t *ppos); #endif |
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static int proc_dointvec_minmax_coredump(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos); |
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#ifdef CONFIG_COREDUMP |
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static int proc_dostring_coredump(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos); |
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#endif |
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static int proc_dopipe_max_size(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos); |
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#ifdef CONFIG_MAGIC_SYSRQ |
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/* Note: sysrq code uses its own private copy */ |
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static int __sysrq_enabled = CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE; |
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static int sysrq_sysctl_handler(struct ctl_table *table, int write, |
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void __user *buffer, size_t *lenp, loff_t *ppos) { int error; error = proc_dointvec(table, write, buffer, lenp, ppos); if (error) return error; if (write) sysrq_toggle_support(__sysrq_enabled); return 0; } #endif |
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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[]; extern struct ctl_table random_table[]; |
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#ifdef CONFIG_EPOLL extern struct ctl_table epoll_table[]; #endif |
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#ifdef CONFIG_FW_LOADER_USER_HELPER extern struct ctl_table firmware_config_table[]; #endif |
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#if defined(HAVE_ARCH_PICK_MMAP_LAYOUT) || \ defined(CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT) |
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int sysctl_legacy_va_layout; #endif |
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/* The default sysctl tables: */ |
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static struct ctl_table sysctl_base_table[] = { |
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{ |
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.procname = "kernel", .mode = 0555, .child = kern_table, }, { |
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.procname = "vm", .mode = 0555, .child = vm_table, }, |
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{ |
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.procname = "fs", .mode = 0555, .child = fs_table, }, { |
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.procname = "debug", .mode = 0555, .child = debug_table, }, { |
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.procname = "dev", .mode = 0555, .child = dev_table, }, |
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{ } |
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}; |
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#ifdef CONFIG_SCHED_DEBUG |
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static int min_sched_granularity_ns = 100000; /* 100 usecs */ static int max_sched_granularity_ns = NSEC_PER_SEC; /* 1 second */ static int min_wakeup_granularity_ns; /* 0 usecs */ static int max_wakeup_granularity_ns = NSEC_PER_SEC; /* 1 second */ |
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#ifdef CONFIG_SMP |
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static int min_sched_tunable_scaling = SCHED_TUNABLESCALING_NONE; static int max_sched_tunable_scaling = SCHED_TUNABLESCALING_END-1; |
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#endif /* CONFIG_SMP */ #endif /* CONFIG_SCHED_DEBUG */ |
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#ifdef CONFIG_COMPACTION static int min_extfrag_threshold; static int max_extfrag_threshold = 1000; #endif |
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static struct ctl_table kern_table[] = { |
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{ |
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.procname = "sched_child_runs_first", .data = &sysctl_sched_child_runs_first, .maxlen = sizeof(unsigned int), .mode = 0644, |
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.proc_handler = proc_dointvec, |
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}, |
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#ifdef CONFIG_SCHED_DEBUG { |
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.procname = "sched_min_granularity_ns", .data = &sysctl_sched_min_granularity, |
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.maxlen = sizeof(unsigned int), .mode = 0644, |
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.proc_handler = sched_proc_update_handler, |
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.extra1 = &min_sched_granularity_ns, .extra2 = &max_sched_granularity_ns, |
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}, { |
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.procname = "sched_latency_ns", .data = &sysctl_sched_latency, .maxlen = sizeof(unsigned int), .mode = 0644, |
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.proc_handler = sched_proc_update_handler, |
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.extra1 = &min_sched_granularity_ns, .extra2 = &max_sched_granularity_ns, }, { |
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.procname = "sched_wakeup_granularity_ns", .data = &sysctl_sched_wakeup_granularity, .maxlen = sizeof(unsigned int), .mode = 0644, |
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.proc_handler = sched_proc_update_handler, |
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.extra1 = &min_wakeup_granularity_ns, .extra2 = &max_wakeup_granularity_ns, }, |
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#ifdef CONFIG_SMP |
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{ |
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.procname = "sched_tunable_scaling", .data = &sysctl_sched_tunable_scaling, .maxlen = sizeof(enum sched_tunable_scaling), .mode = 0644, |
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.proc_handler = sched_proc_update_handler, |
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.extra1 = &min_sched_tunable_scaling, .extra2 = &max_sched_tunable_scaling, |
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}, { |
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.procname = "sched_migration_cost_ns", |
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.data = &sysctl_sched_migration_cost, .maxlen = sizeof(unsigned int), .mode = 0644, |
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.proc_handler = proc_dointvec, |
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}, |
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{ |
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.procname = "sched_nr_migrate", .data = &sysctl_sched_nr_migrate, .maxlen = sizeof(unsigned int), |
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.mode = 0644, |
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.proc_handler = proc_dointvec, |
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}, |
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#ifdef CONFIG_SCHEDSTATS { .procname = "sched_schedstats", .data = NULL, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = sysctl_schedstats, |
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.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
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}, #endif /* CONFIG_SCHEDSTATS */ |
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#endif /* CONFIG_SMP */ #ifdef CONFIG_NUMA_BALANCING { |
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.procname = "numa_balancing_scan_delay_ms", .data = &sysctl_numa_balancing_scan_delay, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec, }, { |
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.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, }, |
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{ .procname = "numa_balancing_scan_size_mb", .data = &sysctl_numa_balancing_scan_size, .maxlen = sizeof(unsigned int), .mode = 0644, |
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.proc_handler = proc_dointvec_minmax, |
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.extra1 = SYSCTL_ONE, |
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}, |
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{ |
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.procname = "numa_balancing", .data = NULL, /* filled in by handler */ .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = sysctl_numa_balancing, |
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.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
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}, |
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#endif /* CONFIG_NUMA_BALANCING */ #endif /* CONFIG_SCHED_DEBUG */ |
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{ |
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.procname = "sched_rt_period_us", .data = &sysctl_sched_rt_period, .maxlen = sizeof(unsigned int), .mode = 0644, |
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.proc_handler = sched_rt_handler, |
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}, { |
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.procname = "sched_rt_runtime_us", .data = &sysctl_sched_rt_runtime, .maxlen = sizeof(int), .mode = 0644, |
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.proc_handler = sched_rt_handler, |
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}, |
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{ .procname = "sched_rr_timeslice_ms", |
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.data = &sysctl_sched_rr_timeslice, |
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.maxlen = sizeof(int), .mode = 0644, .proc_handler = sched_rr_handler, }, |
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|
436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 |
#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 |
5091faa44
|
452 453 454 455 456 457 |
#ifdef CONFIG_SCHED_AUTOGROUP { .procname = "sched_autogroup_enabled", .data = &sysctl_sched_autogroup_enabled, .maxlen = sizeof(unsigned int), .mode = 0644, |
1747b21fe
|
458 |
.proc_handler = proc_dointvec_minmax, |
eec4844fa
|
459 460 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
5091faa44
|
461 462 |
}, #endif |
ec12cb7f3
|
463 464 465 466 467 468 469 |
#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, |
eec4844fa
|
470 |
.extra1 = SYSCTL_ONE, |
ec12cb7f3
|
471 472 |
}, #endif |
8d5d0cfb6
|
473 474 475 476 477 478 479 |
#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, |
eec4844fa
|
480 481 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
8d5d0cfb6
|
482 483 |
}, #endif |
f20786ff4
|
484 485 |
#ifdef CONFIG_PROVE_LOCKING { |
f20786ff4
|
486 487 488 489 |
.procname = "prove_locking", .data = &prove_locking, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
490 |
.proc_handler = proc_dointvec, |
f20786ff4
|
491 492 493 494 |
}, #endif #ifdef CONFIG_LOCK_STAT { |
f20786ff4
|
495 496 497 498 |
.procname = "lock_stat", .data = &lock_stat, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
499 |
.proc_handler = proc_dointvec, |
f20786ff4
|
500 501 |
}, #endif |
77e54a1f8
|
502 |
{ |
1da177e4c
|
503 504 505 506 |
.procname = "panic", .data = &panic_timeout, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
507 |
.proc_handler = proc_dointvec, |
1da177e4c
|
508 |
}, |
046d662f4
|
509 |
#ifdef CONFIG_COREDUMP |
1da177e4c
|
510 |
{ |
1da177e4c
|
511 512 513 514 |
.procname = "core_uses_pid", .data = &core_uses_pid, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
515 |
.proc_handler = proc_dointvec, |
1da177e4c
|
516 517 |
}, { |
1da177e4c
|
518 519 |
.procname = "core_pattern", .data = core_pattern, |
71ce92f3f
|
520 |
.maxlen = CORENAME_MAX_SIZE, |
1da177e4c
|
521 |
.mode = 0644, |
54b501992
|
522 |
.proc_handler = proc_dostring_coredump, |
1da177e4c
|
523 |
}, |
a293980c2
|
524 |
{ |
a293980c2
|
525 526 527 528 |
.procname = "core_pipe_limit", .data = &core_pipe_limit, .maxlen = sizeof(unsigned int), .mode = 0644, |
6d4561110
|
529 |
.proc_handler = proc_dointvec, |
a293980c2
|
530 |
}, |
046d662f4
|
531 |
#endif |
34f5a3989
|
532 |
#ifdef CONFIG_PROC_SYSCTL |
1da177e4c
|
533 |
{ |
1da177e4c
|
534 |
.procname = "tainted", |
25ddbb18a
|
535 |
.maxlen = sizeof(long), |
34f5a3989
|
536 |
.mode = 0644, |
6d4561110
|
537 |
.proc_handler = proc_taint, |
1da177e4c
|
538 |
}, |
f4aacea2f
|
539 540 541 542 543 544 545 |
{ .procname = "sysctl_writes_strict", .data = &sysctl_writes_strict, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &neg_one, |
eec4844fa
|
546 |
.extra2 = SYSCTL_ONE, |
f4aacea2f
|
547 |
}, |
34f5a3989
|
548 |
#endif |
9745512ce
|
549 550 551 552 553 554 |
#ifdef CONFIG_LATENCYTOP { .procname = "latencytop", .data = &latencytop_enabled, .maxlen = sizeof(int), .mode = 0644, |
cb2517653
|
555 |
.proc_handler = sysctl_latencytop, |
9745512ce
|
556 557 |
}, #endif |
1da177e4c
|
558 559 |
#ifdef CONFIG_BLK_DEV_INITRD { |
1da177e4c
|
560 561 562 563 |
.procname = "real-root-dev", .data = &real_root_dev, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
564 |
.proc_handler = proc_dointvec, |
1da177e4c
|
565 566 |
}, #endif |
45807a1df
|
567 |
{ |
45807a1df
|
568 569 570 571 |
.procname = "print-fatal-signals", .data = &print_fatal_signals, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
572 |
.proc_handler = proc_dointvec, |
45807a1df
|
573 |
}, |
72c57ed50
|
574 |
#ifdef CONFIG_SPARC |
1da177e4c
|
575 |
{ |
1da177e4c
|
576 577 578 579 |
.procname = "reboot-cmd", .data = reboot_command, .maxlen = 256, .mode = 0644, |
6d4561110
|
580 |
.proc_handler = proc_dostring, |
1da177e4c
|
581 582 |
}, { |
1da177e4c
|
583 584 585 586 |
.procname = "stop-a", .data = &stop_a_enabled, .maxlen = sizeof (int), .mode = 0644, |
6d4561110
|
587 |
.proc_handler = proc_dointvec, |
1da177e4c
|
588 589 |
}, { |
1da177e4c
|
590 591 592 593 |
.procname = "scons-poweroff", .data = &scons_pwroff, .maxlen = sizeof (int), .mode = 0644, |
6d4561110
|
594 |
.proc_handler = proc_dointvec, |
1da177e4c
|
595 596 |
}, #endif |
0871420fa
|
597 598 |
#ifdef CONFIG_SPARC64 { |
0871420fa
|
599 600 601 602 |
.procname = "tsb-ratio", .data = &sysctl_tsb_ratio, .maxlen = sizeof (int), .mode = 0644, |
6d4561110
|
603 |
.proc_handler = proc_dointvec, |
0871420fa
|
604 605 |
}, #endif |
b67114db6
|
606 |
#ifdef CONFIG_PARISC |
1da177e4c
|
607 |
{ |
1da177e4c
|
608 609 610 611 |
.procname = "soft-power", .data = &pwrsw_enabled, .maxlen = sizeof (int), .mode = 0644, |
6d4561110
|
612 |
.proc_handler = proc_dointvec, |
1da177e4c
|
613 |
}, |
bf14e3b97
|
614 615 |
#endif #ifdef CONFIG_SYSCTL_ARCH_UNALIGN_ALLOW |
1da177e4c
|
616 |
{ |
1da177e4c
|
617 618 619 620 |
.procname = "unaligned-trap", .data = &unaligned_enabled, .maxlen = sizeof (int), .mode = 0644, |
6d4561110
|
621 |
.proc_handler = proc_dointvec, |
1da177e4c
|
622 623 624 |
}, #endif { |
1da177e4c
|
625 626 627 628 |
.procname = "ctrl-alt-del", .data = &C_A_D, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
629 |
.proc_handler = proc_dointvec, |
1da177e4c
|
630 |
}, |
606576ce8
|
631 |
#ifdef CONFIG_FUNCTION_TRACER |
b0fc494fa
|
632 |
{ |
b0fc494fa
|
633 634 635 636 |
.procname = "ftrace_enabled", .data = &ftrace_enabled, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
637 |
.proc_handler = ftrace_enable_sysctl, |
b0fc494fa
|
638 639 |
}, #endif |
f38f1d2aa
|
640 641 |
#ifdef CONFIG_STACK_TRACER { |
f38f1d2aa
|
642 643 644 645 |
.procname = "stack_tracer_enabled", .data = &stack_tracer_enabled, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
646 |
.proc_handler = stack_trace_sysctl, |
f38f1d2aa
|
647 648 |
}, #endif |
944ac4259
|
649 650 |
#ifdef CONFIG_TRACING { |
3299b4dd1
|
651 |
.procname = "ftrace_dump_on_oops", |
944ac4259
|
652 653 654 |
.data = &ftrace_dump_on_oops, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
655 |
.proc_handler = proc_dointvec, |
944ac4259
|
656 |
}, |
de7edd314
|
657 658 659 660 661 662 663 |
{ .procname = "traceoff_on_warning", .data = &__disable_trace_on_warning, .maxlen = sizeof(__disable_trace_on_warning), .mode = 0644, .proc_handler = proc_dointvec, }, |
0daa23029
|
664 665 666 667 668 |
{ .procname = "tracepoint_printk", .data = &tracepoint_printk, .maxlen = sizeof(tracepoint_printk), .mode = 0644, |
423917457
|
669 |
.proc_handler = tracepoint_printk_sysctl, |
0daa23029
|
670 |
}, |
944ac4259
|
671 |
#endif |
2965faa5e
|
672 |
#ifdef CONFIG_KEXEC_CORE |
7984754b9
|
673 674 675 676 677 678 679 |
{ .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, |
eec4844fa
|
680 681 |
.extra1 = SYSCTL_ONE, .extra2 = SYSCTL_ONE, |
7984754b9
|
682 683 |
}, #endif |
a1ef5adb4
|
684 |
#ifdef CONFIG_MODULES |
1da177e4c
|
685 |
{ |
1da177e4c
|
686 687 688 689 |
.procname = "modprobe", .data = &modprobe_path, .maxlen = KMOD_PATH_LEN, .mode = 0644, |
6d4561110
|
690 |
.proc_handler = proc_dostring, |
1da177e4c
|
691 |
}, |
3d43321b7
|
692 |
{ |
3d43321b7
|
693 694 695 696 697 |
.procname = "modules_disabled", .data = &modules_disabled, .maxlen = sizeof(int), .mode = 0644, /* only handle a transition from default "0" to "1" */ |
6d4561110
|
698 |
.proc_handler = proc_dointvec_minmax, |
eec4844fa
|
699 700 |
.extra1 = SYSCTL_ONE, .extra2 = SYSCTL_ONE, |
3d43321b7
|
701 |
}, |
1da177e4c
|
702 |
#endif |
86d56134f
|
703 |
#ifdef CONFIG_UEVENT_HELPER |
1da177e4c
|
704 |
{ |
1da177e4c
|
705 |
.procname = "hotplug", |
312c004d3
|
706 707 |
.data = &uevent_helper, .maxlen = UEVENT_HELPER_PATH_LEN, |
1da177e4c
|
708 |
.mode = 0644, |
6d4561110
|
709 |
.proc_handler = proc_dostring, |
1da177e4c
|
710 |
}, |
86d56134f
|
711 |
#endif |
1da177e4c
|
712 713 |
#ifdef CONFIG_CHR_DEV_SG { |
1da177e4c
|
714 715 716 717 |
.procname = "sg-big-buff", .data = &sg_big_buff, .maxlen = sizeof (int), .mode = 0444, |
6d4561110
|
718 |
.proc_handler = proc_dointvec, |
1da177e4c
|
719 720 721 722 |
}, #endif #ifdef CONFIG_BSD_PROCESS_ACCT { |
1da177e4c
|
723 724 725 726 |
.procname = "acct", .data = &acct_parm, .maxlen = 3*sizeof(int), .mode = 0644, |
6d4561110
|
727 |
.proc_handler = proc_dointvec, |
1da177e4c
|
728 729 |
}, #endif |
1da177e4c
|
730 731 |
#ifdef CONFIG_MAGIC_SYSRQ { |
1da177e4c
|
732 |
.procname = "sysrq", |
5d6f647fc
|
733 |
.data = &__sysrq_enabled, |
1da177e4c
|
734 735 |
.maxlen = sizeof (int), .mode = 0644, |
97f5f0cd8
|
736 |
.proc_handler = sysrq_sysctl_handler, |
1da177e4c
|
737 738 |
}, #endif |
d6f8ff738
|
739 |
#ifdef CONFIG_PROC_SYSCTL |
1da177e4c
|
740 |
{ |
1da177e4c
|
741 |
.procname = "cad_pid", |
9ec52099e
|
742 |
.data = NULL, |
1da177e4c
|
743 744 |
.maxlen = sizeof (int), .mode = 0600, |
6d4561110
|
745 |
.proc_handler = proc_do_cad_pid, |
1da177e4c
|
746 |
}, |
d6f8ff738
|
747 |
#endif |
1da177e4c
|
748 |
{ |
1da177e4c
|
749 |
.procname = "threads-max", |
16db3d3f1
|
750 |
.data = NULL, |
1da177e4c
|
751 752 |
.maxlen = sizeof(int), .mode = 0644, |
16db3d3f1
|
753 |
.proc_handler = sysctl_max_threads, |
1da177e4c
|
754 755 |
}, { |
1da177e4c
|
756 757 758 759 |
.procname = "random", .mode = 0555, .child = random_table, }, |
1da177e4c
|
760 |
{ |
17f60a7da
|
761 762 763 764 |
.procname = "usermodehelper", .mode = 0555, .child = usermodehelper_table, }, |
ceb181322
|
765 766 767 768 769 770 771 |
#ifdef CONFIG_FW_LOADER_USER_HELPER { .procname = "firmware_config", .mode = 0555, .child = firmware_config_table, }, #endif |
17f60a7da
|
772 |
{ |
1da177e4c
|
773 774 775 776 |
.procname = "overflowuid", .data = &overflowuid, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
777 |
.proc_handler = proc_dointvec_minmax, |
1da177e4c
|
778 779 780 781 |
.extra1 = &minolduid, .extra2 = &maxolduid, }, { |
1da177e4c
|
782 783 784 785 |
.procname = "overflowgid", .data = &overflowgid, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
786 |
.proc_handler = proc_dointvec_minmax, |
1da177e4c
|
787 788 789 |
.extra1 = &minolduid, .extra2 = &maxolduid, }, |
347a8dc3b
|
790 |
#ifdef CONFIG_S390 |
1da177e4c
|
791 792 |
#ifdef CONFIG_MATHEMU { |
1da177e4c
|
793 794 795 796 |
.procname = "ieee_emulation_warnings", .data = &sysctl_ieee_emulation_warnings, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
797 |
.proc_handler = proc_dointvec, |
1da177e4c
|
798 799 |
}, #endif |
1da177e4c
|
800 |
{ |
1da177e4c
|
801 |
.procname = "userprocess_debug", |
ab3c68ee5
|
802 |
.data = &show_unhandled_signals, |
1da177e4c
|
803 804 |
.maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
805 |
.proc_handler = proc_dointvec, |
1da177e4c
|
806 807 808 |
}, #endif { |
1da177e4c
|
809 810 811 812 |
.procname = "pid_max", .data = &pid_max, .maxlen = sizeof (int), .mode = 0644, |
6d4561110
|
813 |
.proc_handler = proc_dointvec_minmax, |
1da177e4c
|
814 815 816 817 |
.extra1 = &pid_max_min, .extra2 = &pid_max_max, }, { |
1da177e4c
|
818 819 820 821 |
.procname = "panic_on_oops", .data = &panic_on_oops, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
822 |
.proc_handler = proc_dointvec, |
1da177e4c
|
823 |
}, |
81c9d43f9
|
824 825 826 827 828 829 830 |
{ .procname = "panic_print", .data = &panic_print, .maxlen = sizeof(unsigned long), .mode = 0644, .proc_handler = proc_doulongvec_minmax, }, |
7ef3d2fd1
|
831 832 |
#if defined CONFIG_PRINTK { |
7ef3d2fd1
|
833 834 835 836 |
.procname = "printk", .data = &console_loglevel, .maxlen = 4*sizeof(int), .mode = 0644, |
6d4561110
|
837 |
.proc_handler = proc_dointvec, |
7ef3d2fd1
|
838 |
}, |
1da177e4c
|
839 |
{ |
1da177e4c
|
840 |
.procname = "printk_ratelimit", |
717115e1a
|
841 |
.data = &printk_ratelimit_state.interval, |
1da177e4c
|
842 843 |
.maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
844 |
.proc_handler = proc_dointvec_jiffies, |
1da177e4c
|
845 846 |
}, { |
1da177e4c
|
847 |
.procname = "printk_ratelimit_burst", |
717115e1a
|
848 |
.data = &printk_ratelimit_state.burst, |
1da177e4c
|
849 850 |
.maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
851 |
.proc_handler = proc_dointvec, |
1da177e4c
|
852 |
}, |
af91322ef
|
853 |
{ |
af91322ef
|
854 855 856 857 |
.procname = "printk_delay", .data = &printk_delay_msec, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
858 |
.proc_handler = proc_dointvec_minmax, |
eec4844fa
|
859 |
.extra1 = SYSCTL_ZERO, |
af91322ef
|
860 861 |
.extra2 = &ten_thousand, }, |
1da177e4c
|
862 |
{ |
750afe7ba
|
863 864 865 866 867 868 869 |
.procname = "printk_devkmsg", .data = devkmsg_log_str, .maxlen = DEVKMSG_STR_MAX_SIZE, .mode = 0644, .proc_handler = devkmsg_sysctl_set_loglvl, }, { |
eaf06b241
|
870 871 872 873 |
.procname = "dmesg_restrict", .data = &dmesg_restrict, .maxlen = sizeof(int), .mode = 0644, |
620f6e8e8
|
874 |
.proc_handler = proc_dointvec_minmax_sysadmin, |
eec4844fa
|
875 876 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
eaf06b241
|
877 |
}, |
455cd5ab3
|
878 879 880 881 882 |
{ .procname = "kptr_restrict", .data = &kptr_restrict, .maxlen = sizeof(int), .mode = 0644, |
620f6e8e8
|
883 |
.proc_handler = proc_dointvec_minmax_sysadmin, |
eec4844fa
|
884 |
.extra1 = SYSCTL_ZERO, |
455cd5ab3
|
885 886 |
.extra2 = &two, }, |
df6e61d4c
|
887 |
#endif |
eaf06b241
|
888 |
{ |
1da177e4c
|
889 890 891 892 |
.procname = "ngroups_max", .data = &ngroups_max, .maxlen = sizeof (int), .mode = 0444, |
6d4561110
|
893 |
.proc_handler = proc_dointvec, |
1da177e4c
|
894 |
}, |
73efc0394
|
895 896 897 898 899 900 901 |
{ .procname = "cap_last_cap", .data = (void *)&cap_last_cap, .maxlen = sizeof(int), .mode = 0444, .proc_handler = proc_dointvec, }, |
58687acba
|
902 |
#if defined(CONFIG_LOCKUP_DETECTOR) |
504d7cf10
|
903 |
{ |
58687acba
|
904 |
.procname = "watchdog", |
7feeb9cd4
|
905 906 907 |
.data = &watchdog_user_enabled, .maxlen = sizeof(int), .mode = 0644, |
195daf665
|
908 |
.proc_handler = proc_watchdog, |
eec4844fa
|
909 910 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
58687acba
|
911 912 913 |
}, { .procname = "watchdog_thresh", |
586692a5a
|
914 |
.data = &watchdog_thresh, |
58687acba
|
915 916 |
.maxlen = sizeof(int), .mode = 0644, |
195daf665
|
917 |
.proc_handler = proc_watchdog_thresh, |
eec4844fa
|
918 |
.extra1 = SYSCTL_ZERO, |
58687acba
|
919 |
.extra2 = &sixty, |
504d7cf10
|
920 |
}, |
2508ce184
|
921 |
{ |
195daf665
|
922 |
.procname = "nmi_watchdog", |
7feeb9cd4
|
923 924 |
.data = &nmi_watchdog_user_enabled, .maxlen = sizeof(int), |
51d4052b0
|
925 |
.mode = NMI_WATCHDOG_SYSCTL_PERM, |
195daf665
|
926 |
.proc_handler = proc_nmi_watchdog, |
eec4844fa
|
927 928 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
195daf665
|
929 930 |
}, { |
05a4a9527
|
931 932 933 934 935 936 937 938 |
.procname = "watchdog_cpumask", .data = &watchdog_cpumask_bits, .maxlen = NR_CPUS, .mode = 0644, .proc_handler = proc_watchdog_cpumask, }, #ifdef CONFIG_SOFTLOCKUP_DETECTOR { |
195daf665
|
939 |
.procname = "soft_watchdog", |
7feeb9cd4
|
940 941 942 |
.data = &soft_watchdog_user_enabled, .maxlen = sizeof(int), .mode = 0644, |
195daf665
|
943 |
.proc_handler = proc_soft_watchdog, |
eec4844fa
|
944 945 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
195daf665
|
946 947 |
}, { |
2508ce184
|
948 949 950 951 952 |
.procname = "softlockup_panic", .data = &softlockup_panic, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, |
eec4844fa
|
953 954 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
2508ce184
|
955 |
}, |
05a4a9527
|
956 |
#ifdef CONFIG_SMP |
ac1f59124
|
957 |
{ |
05a4a9527
|
958 959 |
.procname = "softlockup_all_cpu_backtrace", .data = &sysctl_softlockup_all_cpu_backtrace, |
ac1f59124
|
960 961 962 |
.maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, |
eec4844fa
|
963 964 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
ac1f59124
|
965 |
}, |
05a4a9527
|
966 |
#endif /* CONFIG_SMP */ |
ac1f59124
|
967 |
#endif |
05a4a9527
|
968 |
#ifdef CONFIG_HARDLOCKUP_DETECTOR |
ed235875e
|
969 |
{ |
05a4a9527
|
970 971 |
.procname = "hardlockup_panic", .data = &hardlockup_panic, |
ed235875e
|
972 973 974 |
.maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, |
eec4844fa
|
975 976 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
ed235875e
|
977 |
}, |
05a4a9527
|
978 |
#ifdef CONFIG_SMP |
55537871e
|
979 980 981 982 983 984 |
{ .procname = "hardlockup_all_cpu_backtrace", .data = &sysctl_hardlockup_all_cpu_backtrace, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, |
eec4844fa
|
985 986 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
55537871e
|
987 |
}, |
ed235875e
|
988 |
#endif /* CONFIG_SMP */ |
5dc305587
|
989 |
#endif |
05a4a9527
|
990 |
#endif |
5dc305587
|
991 992 993 994 995 996 997 998 |
#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, }, |
504d7cf10
|
999 |
#endif |
1da177e4c
|
1000 1001 |
#if defined(CONFIG_X86) { |
8da5adda9
|
1002 1003 1004 1005 |
.procname = "panic_on_unrecovered_nmi", .data = &panic_on_unrecovered_nmi, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
1006 |
.proc_handler = proc_dointvec, |
8da5adda9
|
1007 1008 |
}, { |
5211a242d
|
1009 1010 1011 1012 |
.procname = "panic_on_io_nmi", .data = &panic_on_io_nmi, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
1013 |
.proc_handler = proc_dointvec, |
5211a242d
|
1014 |
}, |
55af77969
|
1015 1016 1017 1018 1019 1020 1021 1022 1023 |
#ifdef CONFIG_DEBUG_STACKOVERFLOW { .procname = "panic_on_stackoverflow", .data = &sysctl_panic_on_stackoverflow, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec, }, #endif |
5211a242d
|
1024 |
{ |
1da177e4c
|
1025 1026 1027 1028 |
.procname = "bootloader_type", .data = &bootloader_type, .maxlen = sizeof (int), .mode = 0444, |
6d4561110
|
1029 |
.proc_handler = proc_dointvec, |
1da177e4c
|
1030 |
}, |
0741f4d20
|
1031 |
{ |
5031296c5
|
1032 1033 1034 1035 |
.procname = "bootloader_version", .data = &bootloader_version, .maxlen = sizeof (int), .mode = 0444, |
6d4561110
|
1036 |
.proc_handler = proc_dointvec, |
5031296c5
|
1037 1038 |
}, { |
6e7c40259
|
1039 1040 1041 1042 |
.procname = "io_delay_type", .data = &io_delay_type, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
1043 |
.proc_handler = proc_dointvec, |
6e7c40259
|
1044 |
}, |
1da177e4c
|
1045 |
#endif |
7a9166e3b
|
1046 |
#if defined(CONFIG_MMU) |
1da177e4c
|
1047 |
{ |
1da177e4c
|
1048 1049 1050 1051 |
.procname = "randomize_va_space", .data = &randomize_va_space, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
1052 |
.proc_handler = proc_dointvec, |
1da177e4c
|
1053 |
}, |
7a9166e3b
|
1054 |
#endif |
0152fb376
|
1055 |
#if defined(CONFIG_S390) && defined(CONFIG_SMP) |
951f22d5b
|
1056 |
{ |
951f22d5b
|
1057 1058 1059 1060 |
.procname = "spin_retry", .data = &spin_retry, .maxlen = sizeof (int), .mode = 0644, |
6d4561110
|
1061 |
.proc_handler = proc_dointvec, |
951f22d5b
|
1062 1063 |
}, #endif |
673d5b43d
|
1064 |
#if defined(CONFIG_ACPI_SLEEP) && defined(CONFIG_X86) |
c255d844d
|
1065 |
{ |
c255d844d
|
1066 |
.procname = "acpi_video_flags", |
77afcf78a
|
1067 |
.data = &acpi_realmode_flags, |
c255d844d
|
1068 1069 |
.maxlen = sizeof (unsigned long), .mode = 0644, |
6d4561110
|
1070 |
.proc_handler = proc_doulongvec_minmax, |
c255d844d
|
1071 1072 |
}, #endif |
b6fca7253
|
1073 |
#ifdef CONFIG_SYSCTL_ARCH_UNALIGN_NO_WARN |
d2b176ed8
|
1074 |
{ |
d2b176ed8
|
1075 1076 1077 1078 |
.procname = "ignore-unaligned-usertrap", .data = &no_unaligned_warning, .maxlen = sizeof (int), .mode = 0644, |
6d4561110
|
1079 |
.proc_handler = proc_dointvec, |
d2b176ed8
|
1080 |
}, |
b6fca7253
|
1081 1082 |
#endif #ifdef CONFIG_IA64 |
88fc241f5
|
1083 |
{ |
88fc241f5
|
1084 1085 1086 1087 |
.procname = "unaligned-dump-stack", .data = &unaligned_dump_stack, .maxlen = sizeof (int), .mode = 0644, |
6d4561110
|
1088 |
.proc_handler = proc_dointvec, |
88fc241f5
|
1089 |
}, |
d2b176ed8
|
1090 |
#endif |
e162b39a3
|
1091 1092 |
#ifdef CONFIG_DETECT_HUNG_TASK { |
e162b39a3
|
1093 1094 1095 1096 |
.procname = "hung_task_panic", .data = &sysctl_hung_task_panic, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
1097 |
.proc_handler = proc_dointvec_minmax, |
eec4844fa
|
1098 1099 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
e162b39a3
|
1100 |
}, |
82a1fcb90
|
1101 |
{ |
82a1fcb90
|
1102 1103 |
.procname = "hung_task_check_count", .data = &sysctl_hung_task_check_count, |
cd64647f0
|
1104 |
.maxlen = sizeof(int), |
82a1fcb90
|
1105 |
.mode = 0644, |
cd64647f0
|
1106 |
.proc_handler = proc_dointvec_minmax, |
eec4844fa
|
1107 |
.extra1 = SYSCTL_ZERO, |
82a1fcb90
|
1108 1109 |
}, { |
82a1fcb90
|
1110 1111 |
.procname = "hung_task_timeout_secs", .data = &sysctl_hung_task_timeout_secs, |
90739081e
|
1112 |
.maxlen = sizeof(unsigned long), |
82a1fcb90
|
1113 |
.mode = 0644, |
6d4561110
|
1114 |
.proc_handler = proc_dohung_task_timeout_secs, |
80df28476
|
1115 |
.extra2 = &hung_task_timeout_max, |
82a1fcb90
|
1116 1117 |
}, { |
a2e514453
|
1118 1119 1120 1121 1122 1123 1124 1125 |
.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, }, { |
82a1fcb90
|
1126 1127 |
.procname = "hung_task_warnings", .data = &sysctl_hung_task_warnings, |
270750dbc
|
1128 |
.maxlen = sizeof(int), |
82a1fcb90
|
1129 |
.mode = 0644, |
270750dbc
|
1130 1131 |
.proc_handler = proc_dointvec_minmax, .extra1 = &neg_one, |
82a1fcb90
|
1132 |
}, |
c4f3b63fe
|
1133 |
#endif |
23f78d4a0
|
1134 1135 |
#ifdef CONFIG_RT_MUTEXES { |
23f78d4a0
|
1136 1137 1138 1139 |
.procname = "max_lock_depth", .data = &max_lock_depth, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
1140 |
.proc_handler = proc_dointvec, |
23f78d4a0
|
1141 1142 |
}, #endif |
10a0a8d4e
|
1143 |
{ |
10a0a8d4e
|
1144 1145 1146 1147 |
.procname = "poweroff_cmd", .data = &poweroff_cmd, .maxlen = POWEROFF_CMD_PATH_LEN, .mode = 0644, |
6d4561110
|
1148 |
.proc_handler = proc_dostring, |
10a0a8d4e
|
1149 |
}, |
0b77f5bfb
|
1150 1151 |
#ifdef CONFIG_KEYS { |
0b77f5bfb
|
1152 1153 1154 1155 1156 |
.procname = "keys", .mode = 0555, .child = key_sysctls, }, #endif |
cdd6c482c
|
1157 |
#ifdef CONFIG_PERF_EVENTS |
aa4a22187
|
1158 1159 1160 1161 1162 1163 |
/* * 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! */ |
1ccd15497
|
1164 |
{ |
cdd6c482c
|
1165 1166 1167 |
.procname = "perf_event_paranoid", .data = &sysctl_perf_event_paranoid, .maxlen = sizeof(sysctl_perf_event_paranoid), |
1ccd15497
|
1168 |
.mode = 0644, |
6d4561110
|
1169 |
.proc_handler = proc_dointvec, |
1ccd15497
|
1170 |
}, |
c5078f78b
|
1171 |
{ |
cdd6c482c
|
1172 1173 1174 |
.procname = "perf_event_mlock_kb", .data = &sysctl_perf_event_mlock, .maxlen = sizeof(sysctl_perf_event_mlock), |
c5078f78b
|
1175 |
.mode = 0644, |
6d4561110
|
1176 |
.proc_handler = proc_dointvec, |
c5078f78b
|
1177 |
}, |
a78ac3258
|
1178 |
{ |
cdd6c482c
|
1179 1180 1181 |
.procname = "perf_event_max_sample_rate", .data = &sysctl_perf_event_sample_rate, .maxlen = sizeof(sysctl_perf_event_sample_rate), |
a78ac3258
|
1182 |
.mode = 0644, |
163ec4354
|
1183 |
.proc_handler = perf_proc_update_handler, |
eec4844fa
|
1184 |
.extra1 = SYSCTL_ONE, |
a78ac3258
|
1185 |
}, |
14c63f17b
|
1186 1187 1188 1189 1190 1191 |
{ .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, |
eec4844fa
|
1192 |
.extra1 = SYSCTL_ZERO, |
14c63f17b
|
1193 1194 |
.extra2 = &one_hundred, }, |
c5dfd78eb
|
1195 1196 |
{ .procname = "perf_event_max_stack", |
a831100ae
|
1197 |
.data = &sysctl_perf_event_max_stack, |
c5dfd78eb
|
1198 1199 1200 |
.maxlen = sizeof(sysctl_perf_event_max_stack), .mode = 0644, .proc_handler = perf_event_max_stack_handler, |
eec4844fa
|
1201 |
.extra1 = SYSCTL_ZERO, |
c5dfd78eb
|
1202 1203 |
.extra2 = &six_hundred_forty_kb, }, |
c85b03349
|
1204 1205 1206 1207 1208 1209 |
{ .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, |
eec4844fa
|
1210 |
.extra1 = SYSCTL_ZERO, |
c85b03349
|
1211 1212 |
.extra2 = &one_thousand, }, |
1ccd15497
|
1213 |
#endif |
9e3961a09
|
1214 1215 1216 1217 1218 1219 |
{ .procname = "panic_on_warn", .data = &panic_on_warn, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, |
eec4844fa
|
1220 1221 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
9e3961a09
|
1222 |
}, |
bc7a34b8b
|
1223 1224 1225 1226 1227 1228 1229 |
#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, |
eec4844fa
|
1230 1231 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
bc7a34b8b
|
1232 1233 |
}, #endif |
1be7f75d1
|
1234 1235 1236 1237 1238 1239 1240 1241 |
#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, |
eec4844fa
|
1242 1243 |
.extra1 = SYSCTL_ONE, .extra2 = SYSCTL_ONE, |
1be7f75d1
|
1244 |
}, |
492ecee89
|
1245 1246 |
{ .procname = "bpf_stats_enabled", |
a8e11e5c5
|
1247 1248 |
.data = &bpf_stats_enabled_key.key, .maxlen = sizeof(bpf_stats_enabled_key), |
492ecee89
|
1249 |
.mode = 0644, |
a8e11e5c5
|
1250 |
.proc_handler = proc_do_static_key, |
492ecee89
|
1251 |
}, |
3fcc5530b
|
1252 |
#endif |
088e9d253
|
1253 1254 1255 1256 1257 1258 1259 |
#if defined(CONFIG_TREE_RCU) || defined(CONFIG_PREEMPT_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, |
eec4844fa
|
1260 1261 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
088e9d253
|
1262 1263 |
}, #endif |
964c9dff0
|
1264 1265 1266 1267 1268 1269 1270 |
#ifdef CONFIG_STACKLEAK_RUNTIME_DISABLE { .procname = "stack_erasing", .data = NULL, .maxlen = sizeof(int), .mode = 0600, .proc_handler = stack_erasing_sysctl, |
eec4844fa
|
1271 1272 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
964c9dff0
|
1273 1274 |
}, #endif |
6fce56ec9
|
1275 |
{ } |
1da177e4c
|
1276 |
}; |
d8217f076
|
1277 |
static struct ctl_table vm_table[] = { |
1da177e4c
|
1278 |
{ |
1da177e4c
|
1279 1280 1281 1282 |
.procname = "overcommit_memory", .data = &sysctl_overcommit_memory, .maxlen = sizeof(sysctl_overcommit_memory), .mode = 0644, |
cb16e95fa
|
1283 |
.proc_handler = proc_dointvec_minmax, |
eec4844fa
|
1284 |
.extra1 = SYSCTL_ZERO, |
cb16e95fa
|
1285 |
.extra2 = &two, |
1da177e4c
|
1286 1287 |
}, { |
fadd8fbd1
|
1288 1289 1290 1291 |
.procname = "panic_on_oom", .data = &sysctl_panic_on_oom, .maxlen = sizeof(sysctl_panic_on_oom), .mode = 0644, |
cb16e95fa
|
1292 |
.proc_handler = proc_dointvec_minmax, |
eec4844fa
|
1293 |
.extra1 = SYSCTL_ZERO, |
cb16e95fa
|
1294 |
.extra2 = &two, |
fadd8fbd1
|
1295 1296 |
}, { |
fe071d7e8
|
1297 1298 1299 1300 |
.procname = "oom_kill_allocating_task", .data = &sysctl_oom_kill_allocating_task, .maxlen = sizeof(sysctl_oom_kill_allocating_task), .mode = 0644, |
6d4561110
|
1301 |
.proc_handler = proc_dointvec, |
fe071d7e8
|
1302 1303 |
}, { |
fef1bdd68
|
1304 1305 1306 1307 |
.procname = "oom_dump_tasks", .data = &sysctl_oom_dump_tasks, .maxlen = sizeof(sysctl_oom_dump_tasks), .mode = 0644, |
6d4561110
|
1308 |
.proc_handler = proc_dointvec, |
fef1bdd68
|
1309 1310 |
}, { |
1da177e4c
|
1311 1312 1313 1314 |
.procname = "overcommit_ratio", .data = &sysctl_overcommit_ratio, .maxlen = sizeof(sysctl_overcommit_ratio), .mode = 0644, |
49f0ce5f9
|
1315 1316 1317 1318 1319 1320 1321 1322 |
.proc_handler = overcommit_ratio_handler, }, { .procname = "overcommit_kbytes", .data = &sysctl_overcommit_kbytes, .maxlen = sizeof(sysctl_overcommit_kbytes), .mode = 0644, .proc_handler = overcommit_kbytes_handler, |
1da177e4c
|
1323 1324 |
}, { |
1da177e4c
|
1325 1326 1327 1328 |
.procname = "page-cluster", .data = &page_cluster, .maxlen = sizeof(int), .mode = 0644, |
cb16e95fa
|
1329 |
.proc_handler = proc_dointvec_minmax, |
eec4844fa
|
1330 |
.extra1 = SYSCTL_ZERO, |
1da177e4c
|
1331 1332 |
}, { |
1da177e4c
|
1333 1334 1335 1336 |
.procname = "dirty_background_ratio", .data = &dirty_background_ratio, .maxlen = sizeof(dirty_background_ratio), .mode = 0644, |
6d4561110
|
1337 |
.proc_handler = dirty_background_ratio_handler, |
eec4844fa
|
1338 |
.extra1 = SYSCTL_ZERO, |
1da177e4c
|
1339 1340 1341 |
.extra2 = &one_hundred, }, { |
2da02997e
|
1342 1343 1344 1345 |
.procname = "dirty_background_bytes", .data = &dirty_background_bytes, .maxlen = sizeof(dirty_background_bytes), .mode = 0644, |
6d4561110
|
1346 |
.proc_handler = dirty_background_bytes_handler, |
fc3501d41
|
1347 |
.extra1 = &one_ul, |
2da02997e
|
1348 1349 |
}, { |
1da177e4c
|
1350 1351 1352 1353 |
.procname = "dirty_ratio", .data = &vm_dirty_ratio, .maxlen = sizeof(vm_dirty_ratio), .mode = 0644, |
6d4561110
|
1354 |
.proc_handler = dirty_ratio_handler, |
eec4844fa
|
1355 |
.extra1 = SYSCTL_ZERO, |
1da177e4c
|
1356 1357 1358 |
.extra2 = &one_hundred, }, { |
2da02997e
|
1359 1360 1361 1362 |
.procname = "dirty_bytes", .data = &vm_dirty_bytes, .maxlen = sizeof(vm_dirty_bytes), .mode = 0644, |
6d4561110
|
1363 |
.proc_handler = dirty_bytes_handler, |
9e4a5bda8
|
1364 |
.extra1 = &dirty_bytes_min, |
2da02997e
|
1365 1366 |
}, { |
1da177e4c
|
1367 |
.procname = "dirty_writeback_centisecs", |
f6ef94381
|
1368 1369 |
.data = &dirty_writeback_interval, .maxlen = sizeof(dirty_writeback_interval), |
1da177e4c
|
1370 |
.mode = 0644, |
6d4561110
|
1371 |
.proc_handler = dirty_writeback_centisecs_handler, |
1da177e4c
|
1372 1373 |
}, { |
1da177e4c
|
1374 |
.procname = "dirty_expire_centisecs", |
f6ef94381
|
1375 1376 |
.data = &dirty_expire_interval, .maxlen = sizeof(dirty_expire_interval), |
1da177e4c
|
1377 |
.mode = 0644, |
cb16e95fa
|
1378 |
.proc_handler = proc_dointvec_minmax, |
eec4844fa
|
1379 |
.extra1 = SYSCTL_ZERO, |
1da177e4c
|
1380 1381 |
}, { |
1efff914a
|
1382 1383 |
.procname = "dirtytime_expire_seconds", .data = &dirtytime_expire_interval, |
2d87b309a
|
1384 |
.maxlen = sizeof(dirtytime_expire_interval), |
1efff914a
|
1385 1386 |
.mode = 0644, .proc_handler = dirtytime_interval_handler, |
eec4844fa
|
1387 |
.extra1 = SYSCTL_ZERO, |
1efff914a
|
1388 1389 |
}, { |
1da177e4c
|
1390 1391 1392 1393 |
.procname = "swappiness", .data = &vm_swappiness, .maxlen = sizeof(vm_swappiness), .mode = 0644, |
6d4561110
|
1394 |
.proc_handler = proc_dointvec_minmax, |
eec4844fa
|
1395 |
.extra1 = SYSCTL_ZERO, |
1da177e4c
|
1396 1397 1398 |
.extra2 = &one_hundred, }, #ifdef CONFIG_HUGETLB_PAGE |
06808b082
|
1399 |
{ |
1da177e4c
|
1400 |
.procname = "nr_hugepages", |
e5ff21594
|
1401 |
.data = NULL, |
1da177e4c
|
1402 1403 |
.maxlen = sizeof(unsigned long), .mode = 0644, |
6d4561110
|
1404 |
.proc_handler = hugetlb_sysctl_handler, |
06808b082
|
1405 1406 1407 1408 1409 1410 1411 1412 |
}, #ifdef CONFIG_NUMA { .procname = "nr_hugepages_mempolicy", .data = NULL, .maxlen = sizeof(unsigned long), .mode = 0644, .proc_handler = &hugetlb_mempolicy_sysctl_handler, |
06808b082
|
1413 |
}, |
4518085e1
|
1414 1415 1416 1417 1418 1419 |
{ .procname = "numa_stat", .data = &sysctl_vm_numa_stat, .maxlen = sizeof(int), .mode = 0644, .proc_handler = sysctl_vm_numa_stat_handler, |
eec4844fa
|
1420 1421 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
4518085e1
|
1422 |
}, |
06808b082
|
1423 |
#endif |
1da177e4c
|
1424 |
{ |
1da177e4c
|
1425 1426 1427 1428 |
.procname = "hugetlb_shm_group", .data = &sysctl_hugetlb_shm_group, .maxlen = sizeof(gid_t), .mode = 0644, |
6d4561110
|
1429 |
.proc_handler = proc_dointvec, |
1da177e4c
|
1430 |
}, |
54f9f80d6
|
1431 |
{ |
d1c3fb1f8
|
1432 |
.procname = "nr_overcommit_hugepages", |
e5ff21594
|
1433 1434 |
.data = NULL, .maxlen = sizeof(unsigned long), |
d1c3fb1f8
|
1435 |
.mode = 0644, |
6d4561110
|
1436 |
.proc_handler = hugetlb_overcommit_handler, |
d1c3fb1f8
|
1437 |
}, |
1da177e4c
|
1438 1439 |
#endif { |
1da177e4c
|
1440 1441 1442 1443 |
.procname = "lowmem_reserve_ratio", .data = &sysctl_lowmem_reserve_ratio, .maxlen = sizeof(sysctl_lowmem_reserve_ratio), .mode = 0644, |
6d4561110
|
1444 |
.proc_handler = lowmem_reserve_ratio_sysctl_handler, |
1da177e4c
|
1445 1446 |
}, { |
9d0243bca
|
1447 1448 1449 |
.procname = "drop_caches", .data = &sysctl_drop_caches, .maxlen = sizeof(int), |
ead87f116
|
1450 |
.mode = 0200, |
9d0243bca
|
1451 |
.proc_handler = drop_caches_sysctl_handler, |
eec4844fa
|
1452 |
.extra1 = SYSCTL_ONE, |
5509a5d27
|
1453 |
.extra2 = &four, |
9d0243bca
|
1454 |
}, |
76ab0f530
|
1455 1456 1457 1458 1459 1460 1461 1462 |
#ifdef CONFIG_COMPACTION { .procname = "compact_memory", .data = &sysctl_compact_memory, .maxlen = sizeof(int), .mode = 0200, .proc_handler = sysctl_compaction_handler, }, |
5e7719058
|
1463 1464 1465 1466 1467 |
{ .procname = "extfrag_threshold", .data = &sysctl_extfrag_threshold, .maxlen = sizeof(int), .mode = 0644, |
6b7e5cad6
|
1468 |
.proc_handler = proc_dointvec_minmax, |
5e7719058
|
1469 1470 1471 |
.extra1 = &min_extfrag_threshold, .extra2 = &max_extfrag_threshold, }, |
5bbe3547a
|
1472 1473 1474 1475 1476 1477 |
{ .procname = "compact_unevictable_allowed", .data = &sysctl_compact_unevictable_allowed, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec, |
eec4844fa
|
1478 1479 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
5bbe3547a
|
1480 |
}, |
5e7719058
|
1481 |
|
76ab0f530
|
1482 |
#endif /* CONFIG_COMPACTION */ |
9d0243bca
|
1483 |
{ |
1da177e4c
|
1484 1485 1486 1487 |
.procname = "min_free_kbytes", .data = &min_free_kbytes, .maxlen = sizeof(min_free_kbytes), .mode = 0644, |
6d4561110
|
1488 |
.proc_handler = min_free_kbytes_sysctl_handler, |
eec4844fa
|
1489 |
.extra1 = SYSCTL_ZERO, |
1da177e4c
|
1490 |
}, |
8ad4b1fb8
|
1491 |
{ |
1c30844d2
|
1492 1493 1494 1495 1496 |
.procname = "watermark_boost_factor", .data = &watermark_boost_factor, .maxlen = sizeof(watermark_boost_factor), .mode = 0644, .proc_handler = watermark_boost_factor_sysctl_handler, |
eec4844fa
|
1497 |
.extra1 = SYSCTL_ZERO, |
1c30844d2
|
1498 1499 |
}, { |
795ae7a0d
|
1500 1501 1502 1503 1504 |
.procname = "watermark_scale_factor", .data = &watermark_scale_factor, .maxlen = sizeof(watermark_scale_factor), .mode = 0644, .proc_handler = watermark_scale_factor_sysctl_handler, |
eec4844fa
|
1505 |
.extra1 = SYSCTL_ONE, |
795ae7a0d
|
1506 1507 1508 |
.extra2 = &one_thousand, }, { |
8ad4b1fb8
|
1509 1510 1511 1512 |
.procname = "percpu_pagelist_fraction", .data = &percpu_pagelist_fraction, .maxlen = sizeof(percpu_pagelist_fraction), .mode = 0644, |
6d4561110
|
1513 |
.proc_handler = percpu_pagelist_fraction_sysctl_handler, |
eec4844fa
|
1514 |
.extra1 = SYSCTL_ZERO, |
8ad4b1fb8
|
1515 |
}, |
1da177e4c
|
1516 1517 |
#ifdef CONFIG_MMU { |
1da177e4c
|
1518 1519 1520 1521 |
.procname = "max_map_count", .data = &sysctl_max_map_count, .maxlen = sizeof(sysctl_max_map_count), .mode = 0644, |
3e26120cc
|
1522 |
.proc_handler = proc_dointvec_minmax, |
eec4844fa
|
1523 |
.extra1 = SYSCTL_ZERO, |
1da177e4c
|
1524 |
}, |
dd8632a12
|
1525 1526 |
#else { |
dd8632a12
|
1527 1528 1529 1530 |
.procname = "nr_trim_pages", .data = &sysctl_nr_trim_pages, .maxlen = sizeof(sysctl_nr_trim_pages), .mode = 0644, |
6d4561110
|
1531 |
.proc_handler = proc_dointvec_minmax, |
eec4844fa
|
1532 |
.extra1 = SYSCTL_ZERO, |
dd8632a12
|
1533 |
}, |
1da177e4c
|
1534 1535 |
#endif { |
1da177e4c
|
1536 1537 1538 1539 |
.procname = "laptop_mode", .data = &laptop_mode, .maxlen = sizeof(laptop_mode), .mode = 0644, |
6d4561110
|
1540 |
.proc_handler = proc_dointvec_jiffies, |
1da177e4c
|
1541 1542 |
}, { |
1da177e4c
|
1543 1544 1545 1546 |
.procname = "block_dump", .data = &block_dump, .maxlen = sizeof(block_dump), .mode = 0644, |
6d4561110
|
1547 |
.proc_handler = proc_dointvec, |
eec4844fa
|
1548 |
.extra1 = SYSCTL_ZERO, |
1da177e4c
|
1549 1550 |
}, { |
1da177e4c
|
1551 1552 1553 1554 |
.procname = "vfs_cache_pressure", .data = &sysctl_vfs_cache_pressure, .maxlen = sizeof(sysctl_vfs_cache_pressure), .mode = 0644, |
6d4561110
|
1555 |
.proc_handler = proc_dointvec, |
eec4844fa
|
1556 |
.extra1 = SYSCTL_ZERO, |
1da177e4c
|
1557 |
}, |
67f3977f8
|
1558 1559 |
#if defined(HAVE_ARCH_PICK_MMAP_LAYOUT) || \ defined(CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT) |
1da177e4c
|
1560 |
{ |
1da177e4c
|
1561 1562 1563 1564 |
.procname = "legacy_va_layout", .data = &sysctl_legacy_va_layout, .maxlen = sizeof(sysctl_legacy_va_layout), .mode = 0644, |
6d4561110
|
1565 |
.proc_handler = proc_dointvec, |
eec4844fa
|
1566 |
.extra1 = SYSCTL_ZERO, |
1da177e4c
|
1567 1568 |
}, #endif |
1743660b9
|
1569 1570 |
#ifdef CONFIG_NUMA { |
1743660b9
|
1571 |
.procname = "zone_reclaim_mode", |
a5f5f91da
|
1572 1573 |
.data = &node_reclaim_mode, .maxlen = sizeof(node_reclaim_mode), |
1743660b9
|
1574 |
.mode = 0644, |
6d4561110
|
1575 |
.proc_handler = proc_dointvec, |
eec4844fa
|
1576 |
.extra1 = SYSCTL_ZERO, |
1743660b9
|
1577 |
}, |
9614634fe
|
1578 |
{ |
9614634fe
|
1579 1580 1581 1582 |
.procname = "min_unmapped_ratio", .data = &sysctl_min_unmapped_ratio, .maxlen = sizeof(sysctl_min_unmapped_ratio), .mode = 0644, |
6d4561110
|
1583 |
.proc_handler = sysctl_min_unmapped_ratio_sysctl_handler, |
eec4844fa
|
1584 |
.extra1 = SYSCTL_ZERO, |
9614634fe
|
1585 1586 |
.extra2 = &one_hundred, }, |
0ff38490c
|
1587 |
{ |
0ff38490c
|
1588 1589 1590 1591 |
.procname = "min_slab_ratio", .data = &sysctl_min_slab_ratio, .maxlen = sizeof(sysctl_min_slab_ratio), .mode = 0644, |
6d4561110
|
1592 |
.proc_handler = sysctl_min_slab_ratio_sysctl_handler, |
eec4844fa
|
1593 |
.extra1 = SYSCTL_ZERO, |
0ff38490c
|
1594 1595 |
.extra2 = &one_hundred, }, |
1743660b9
|
1596 |
#endif |
77461ab33
|
1597 1598 |
#ifdef CONFIG_SMP { |
77461ab33
|
1599 1600 1601 1602 |
.procname = "stat_interval", .data = &sysctl_stat_interval, .maxlen = sizeof(sysctl_stat_interval), .mode = 0644, |
6d4561110
|
1603 |
.proc_handler = proc_dointvec_jiffies, |
77461ab33
|
1604 |
}, |
52b6f46bc
|
1605 1606 1607 1608 1609 1610 1611 |
{ .procname = "stat_refresh", .data = NULL, .maxlen = 0, .mode = 0600, .proc_handler = vmstat_refresh, }, |
77461ab33
|
1612 |
#endif |
6e1415467
|
1613 |
#ifdef CONFIG_MMU |
ed0321895
|
1614 |
{ |
ed0321895
|
1615 |
.procname = "mmap_min_addr", |
788084aba
|
1616 1617 |
.data = &dac_mmap_min_addr, .maxlen = sizeof(unsigned long), |
ed0321895
|
1618 |
.mode = 0644, |
6d4561110
|
1619 |
.proc_handler = mmap_min_addr_handler, |
ed0321895
|
1620 |
}, |
6e1415467
|
1621 |
#endif |
f0c0b2b80
|
1622 1623 |
#ifdef CONFIG_NUMA { |
f0c0b2b80
|
1624 1625 1626 1627 |
.procname = "numa_zonelist_order", .data = &numa_zonelist_order, .maxlen = NUMA_ZONELIST_ORDER_LEN, .mode = 0644, |
6d4561110
|
1628 |
.proc_handler = numa_zonelist_order_handler, |
f0c0b2b80
|
1629 1630 |
}, #endif |
2b8232ce5
|
1631 |
#if (defined(CONFIG_X86_32) && !defined(CONFIG_UML))|| \ |
5c36e6578
|
1632 |
(defined(CONFIG_SUPERH) && defined(CONFIG_VSYSCALL)) |
e6e5494cb
|
1633 |
{ |
e6e5494cb
|
1634 |
.procname = "vdso_enabled", |
3d7ee969b
|
1635 1636 1637 1638 |
#ifdef CONFIG_X86_32 .data = &vdso32_enabled, .maxlen = sizeof(vdso32_enabled), #else |
e6e5494cb
|
1639 1640 |
.data = &vdso_enabled, .maxlen = sizeof(vdso_enabled), |
3d7ee969b
|
1641 |
#endif |
e6e5494cb
|
1642 |
.mode = 0644, |
6d4561110
|
1643 |
.proc_handler = proc_dointvec, |
eec4844fa
|
1644 |
.extra1 = SYSCTL_ZERO, |
e6e5494cb
|
1645 1646 |
}, #endif |
195cf453d
|
1647 1648 |
#ifdef CONFIG_HIGHMEM { |
195cf453d
|
1649 1650 1651 1652 |
.procname = "highmem_is_dirtyable", .data = &vm_highmem_is_dirtyable, .maxlen = sizeof(vm_highmem_is_dirtyable), .mode = 0644, |
6d4561110
|
1653 |
.proc_handler = proc_dointvec_minmax, |
eec4844fa
|
1654 1655 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
195cf453d
|
1656 1657 |
}, #endif |
6a46079cf
|
1658 1659 |
#ifdef CONFIG_MEMORY_FAILURE { |
6a46079cf
|
1660 1661 1662 1663 |
.procname = "memory_failure_early_kill", .data = &sysctl_memory_failure_early_kill, .maxlen = sizeof(sysctl_memory_failure_early_kill), .mode = 0644, |
6d4561110
|
1664 |
.proc_handler = proc_dointvec_minmax, |
eec4844fa
|
1665 1666 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
6a46079cf
|
1667 1668 |
}, { |
6a46079cf
|
1669 1670 1671 1672 |
.procname = "memory_failure_recovery", .data = &sysctl_memory_failure_recovery, .maxlen = sizeof(sysctl_memory_failure_recovery), .mode = 0644, |
6d4561110
|
1673 |
.proc_handler = proc_dointvec_minmax, |
eec4844fa
|
1674 1675 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
6a46079cf
|
1676 1677 |
}, #endif |
c9b1d0981
|
1678 1679 1680 1681 1682 1683 1684 |
{ .procname = "user_reserve_kbytes", .data = &sysctl_user_reserve_kbytes, .maxlen = sizeof(sysctl_user_reserve_kbytes), .mode = 0644, .proc_handler = proc_doulongvec_minmax, }, |
4eeab4f55
|
1685 1686 1687 1688 1689 1690 1691 |
{ .procname = "admin_reserve_kbytes", .data = &sysctl_admin_reserve_kbytes, .maxlen = sizeof(sysctl_admin_reserve_kbytes), .mode = 0644, .proc_handler = proc_doulongvec_minmax, }, |
d07e22597
|
1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 |
#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 |
cefdca0a8
|
1714 1715 1716 1717 1718 1719 1720 |
#ifdef CONFIG_USERFAULTFD { .procname = "unprivileged_userfaultfd", .data = &sysctl_unprivileged_userfaultfd, .maxlen = sizeof(sysctl_unprivileged_userfaultfd), .mode = 0644, .proc_handler = proc_dointvec_minmax, |
eec4844fa
|
1721 1722 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
cefdca0a8
|
1723 1724 |
}, #endif |
6fce56ec9
|
1725 |
{ } |
1da177e4c
|
1726 |
}; |
d8217f076
|
1727 |
static struct ctl_table fs_table[] = { |
1da177e4c
|
1728 |
{ |
1da177e4c
|
1729 1730 |
.procname = "inode-nr", .data = &inodes_stat, |
3942c07cc
|
1731 |
.maxlen = 2*sizeof(long), |
1da177e4c
|
1732 |
.mode = 0444, |
cffbc8aa3
|
1733 |
.proc_handler = proc_nr_inodes, |
1da177e4c
|
1734 1735 |
}, { |
1da177e4c
|
1736 1737 |
.procname = "inode-state", .data = &inodes_stat, |
3942c07cc
|
1738 |
.maxlen = 7*sizeof(long), |
1da177e4c
|
1739 |
.mode = 0444, |
cffbc8aa3
|
1740 |
.proc_handler = proc_nr_inodes, |
1da177e4c
|
1741 1742 |
}, { |
1da177e4c
|
1743 1744 |
.procname = "file-nr", .data = &files_stat, |
518de9b39
|
1745 |
.maxlen = sizeof(files_stat), |
1da177e4c
|
1746 |
.mode = 0444, |
6d4561110
|
1747 |
.proc_handler = proc_nr_files, |
1da177e4c
|
1748 1749 |
}, { |
1da177e4c
|
1750 1751 |
.procname = "file-max", .data = &files_stat.max_files, |
518de9b39
|
1752 |
.maxlen = sizeof(files_stat.max_files), |
1da177e4c
|
1753 |
.mode = 0644, |
518de9b39
|
1754 |
.proc_handler = proc_doulongvec_minmax, |
9002b2146
|
1755 |
.extra1 = &zero_ul, |
32a5ad9c2
|
1756 |
.extra2 = &long_max, |
1da177e4c
|
1757 1758 |
}, { |
9cfe015aa
|
1759 1760 |
.procname = "nr_open", .data = &sysctl_nr_open, |
9b80a184e
|
1761 |
.maxlen = sizeof(unsigned int), |
9cfe015aa
|
1762 |
.mode = 0644, |
6d4561110
|
1763 |
.proc_handler = proc_dointvec_minmax, |
eceea0b3d
|
1764 1765 |
.extra1 = &sysctl_nr_open_min, .extra2 = &sysctl_nr_open_max, |
9cfe015aa
|
1766 1767 |
}, { |
1da177e4c
|
1768 1769 |
.procname = "dentry-state", .data = &dentry_stat, |
3942c07cc
|
1770 |
.maxlen = 6*sizeof(long), |
1da177e4c
|
1771 |
.mode = 0444, |
312d3ca85
|
1772 |
.proc_handler = proc_nr_dentry, |
1da177e4c
|
1773 1774 |
}, { |
1da177e4c
|
1775 1776 1777 1778 |
.procname = "overflowuid", .data = &fs_overflowuid, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
1779 |
.proc_handler = proc_dointvec_minmax, |
1da177e4c
|
1780 1781 1782 1783 |
.extra1 = &minolduid, .extra2 = &maxolduid, }, { |
1da177e4c
|
1784 1785 1786 1787 |
.procname = "overflowgid", .data = &fs_overflowgid, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
1788 |
.proc_handler = proc_dointvec_minmax, |
1da177e4c
|
1789 1790 1791 |
.extra1 = &minolduid, .extra2 = &maxolduid, }, |
bfcd17a6c
|
1792 |
#ifdef CONFIG_FILE_LOCKING |
1da177e4c
|
1793 |
{ |
1da177e4c
|
1794 1795 1796 1797 |
.procname = "leases-enable", .data = &leases_enable, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
1798 |
.proc_handler = proc_dointvec, |
1da177e4c
|
1799 |
}, |
bfcd17a6c
|
1800 |
#endif |
1da177e4c
|
1801 1802 |
#ifdef CONFIG_DNOTIFY { |
1da177e4c
|
1803 1804 1805 1806 |
.procname = "dir-notify-enable", .data = &dir_notify_enable, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
1807 |
.proc_handler = proc_dointvec, |
1da177e4c
|
1808 1809 1810 |
}, #endif #ifdef CONFIG_MMU |
bfcd17a6c
|
1811 |
#ifdef CONFIG_FILE_LOCKING |
1da177e4c
|
1812 |
{ |
1da177e4c
|
1813 1814 1815 1816 |
.procname = "lease-break-time", .data = &lease_break_time, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
1817 |
.proc_handler = proc_dointvec, |
1da177e4c
|
1818 |
}, |
bfcd17a6c
|
1819 |
#endif |
ebf3f09c6
|
1820 |
#ifdef CONFIG_AIO |
1da177e4c
|
1821 |
{ |
1da177e4c
|
1822 1823 1824 1825 |
.procname = "aio-nr", .data = &aio_nr, .maxlen = sizeof(aio_nr), .mode = 0444, |
6d4561110
|
1826 |
.proc_handler = proc_doulongvec_minmax, |
1da177e4c
|
1827 1828 |
}, { |
1da177e4c
|
1829 1830 1831 1832 |
.procname = "aio-max-nr", .data = &aio_max_nr, .maxlen = sizeof(aio_max_nr), .mode = 0644, |
6d4561110
|
1833 |
.proc_handler = proc_doulongvec_minmax, |
1da177e4c
|
1834 |
}, |
ebf3f09c6
|
1835 |
#endif /* CONFIG_AIO */ |
2d9048e20
|
1836 |
#ifdef CONFIG_INOTIFY_USER |
0399cb08c
|
1837 |
{ |
0399cb08c
|
1838 1839 1840 1841 1842 |
.procname = "inotify", .mode = 0555, .child = inotify_table, }, #endif |
7ef9964e6
|
1843 1844 1845 1846 1847 1848 1849 |
#ifdef CONFIG_EPOLL { .procname = "epoll", .mode = 0555, .child = epoll_table, }, #endif |
1da177e4c
|
1850 |
#endif |
d6e711448
|
1851 |
{ |
800179c9b
|
1852 1853 1854 1855 1856 |
.procname = "protected_symlinks", .data = &sysctl_protected_symlinks, .maxlen = sizeof(int), .mode = 0600, .proc_handler = proc_dointvec_minmax, |
eec4844fa
|
1857 1858 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
800179c9b
|
1859 1860 1861 1862 1863 1864 1865 |
}, { .procname = "protected_hardlinks", .data = &sysctl_protected_hardlinks, .maxlen = sizeof(int), .mode = 0600, .proc_handler = proc_dointvec_minmax, |
eec4844fa
|
1866 1867 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
800179c9b
|
1868 1869 |
}, { |
30aba6656
|
1870 1871 1872 1873 1874 |
.procname = "protected_fifos", .data = &sysctl_protected_fifos, .maxlen = sizeof(int), .mode = 0600, .proc_handler = proc_dointvec_minmax, |
eec4844fa
|
1875 |
.extra1 = SYSCTL_ZERO, |
30aba6656
|
1876 1877 1878 1879 1880 1881 1882 1883 |
.extra2 = &two, }, { .procname = "protected_regular", .data = &sysctl_protected_regular, .maxlen = sizeof(int), .mode = 0600, .proc_handler = proc_dointvec_minmax, |
eec4844fa
|
1884 |
.extra1 = SYSCTL_ZERO, |
30aba6656
|
1885 1886 1887 |
.extra2 = &two, }, { |
d6e711448
|
1888 1889 1890 1891 |
.procname = "suid_dumpable", .data = &suid_dumpable, .maxlen = sizeof(int), .mode = 0644, |
54b501992
|
1892 |
.proc_handler = proc_dointvec_minmax_coredump, |
eec4844fa
|
1893 |
.extra1 = SYSCTL_ZERO, |
8e654fba4
|
1894 |
.extra2 = &two, |
d6e711448
|
1895 |
}, |
2abc26fc6
|
1896 1897 |
#if defined(CONFIG_BINFMT_MISC) || defined(CONFIG_BINFMT_MISC_MODULE) { |
2abc26fc6
|
1898 1899 |
.procname = "binfmt_misc", .mode = 0555, |
f9bd6733d
|
1900 |
.child = sysctl_mount_point, |
2abc26fc6
|
1901 1902 |
}, #endif |
b492e95be
|
1903 |
{ |
ff9da691c
|
1904 1905 |
.procname = "pipe-max-size", .data = &pipe_max_size, |
98159d977
|
1906 |
.maxlen = sizeof(pipe_max_size), |
b492e95be
|
1907 |
.mode = 0644, |
319e0a21b
|
1908 |
.proc_handler = proc_dopipe_max_size, |
b492e95be
|
1909 |
}, |
759c01142
|
1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 |
{ .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, }, |
d29216842
|
1924 1925 1926 1927 1928 1929 |
{ .procname = "mount-max", .data = &sysctl_mount_max, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_minmax, |
eec4844fa
|
1930 |
.extra1 = SYSCTL_ONE, |
d29216842
|
1931 |
}, |
6fce56ec9
|
1932 |
{ } |
1da177e4c
|
1933 |
}; |
d8217f076
|
1934 |
static struct ctl_table debug_table[] = { |
7ac57a89d
|
1935 |
#ifdef CONFIG_SYSCTL_EXCEPTION_TRACE |
abd4f7505
|
1936 |
{ |
abd4f7505
|
1937 1938 1939 1940 1941 1942 1943 |
.procname = "exception-trace", .data = &show_unhandled_signals, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec }, #endif |
b2be84df9
|
1944 1945 1946 1947 1948 1949 1950 |
#if defined(CONFIG_OPTPROBES) { .procname = "kprobes-optimization", .data = &sysctl_kprobes_optimization, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_kprobes_optimization_handler, |
eec4844fa
|
1951 1952 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
b2be84df9
|
1953 1954 |
}, #endif |
6fce56ec9
|
1955 |
{ } |
1da177e4c
|
1956 |
}; |
d8217f076
|
1957 |
static struct ctl_table dev_table[] = { |
6fce56ec9
|
1958 |
{ } |
0eeca2830
|
1959 |
}; |
1da177e4c
|
1960 |
|
de4e83bd6
|
1961 |
int __init sysctl_init(void) |
d912b0cc1
|
1962 |
{ |
fd4b616b0
|
1963 1964 1965 1966 |
struct ctl_table_header *hdr; hdr = register_sysctl_table(sysctl_base_table); kmemleak_not_leak(hdr); |
d912b0cc1
|
1967 1968 |
return 0; } |
b89a81712
|
1969 |
#endif /* CONFIG_SYSCTL */ |
1da177e4c
|
1970 1971 1972 |
/* * /proc/sys support */ |
b89a81712
|
1973 |
#ifdef CONFIG_PROC_SYSCTL |
1da177e4c
|
1974 |
|
f88083005
|
1975 1976 |
static int _proc_do_string(char *data, int maxlen, int write, char __user *buffer, |
b1ba4ddde
|
1977 |
size_t *lenp, loff_t *ppos) |
1da177e4c
|
1978 1979 1980 1981 |
{ size_t len; char __user *p; char c; |
8d0608771
|
1982 1983 |
if (!data || !maxlen || !*lenp) { |
1da177e4c
|
1984 1985 1986 |
*lenp = 0; return 0; } |
8d0608771
|
1987 |
|
1da177e4c
|
1988 |
if (write) { |
f4aacea2f
|
1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 |
if (sysctl_writes_strict == SYSCTL_WRITES_STRICT) { /* Only continue writes not past the end of buffer. */ len = strlen(data); if (len > maxlen - 1) len = maxlen - 1; if (*ppos > len) return 0; len = *ppos; } else { /* Start writing from beginning of buffer. */ len = 0; } |
2ca9bb456
|
2002 |
*ppos += *lenp; |
1da177e4c
|
2003 |
p = buffer; |
2ca9bb456
|
2004 |
while ((p - buffer) < *lenp && len < maxlen - 1) { |
1da177e4c
|
2005 2006 2007 2008 2009 |
if (get_user(c, p++)) return -EFAULT; if (c == 0 || c == ' ') break; |
2ca9bb456
|
2010 |
data[len++] = c; |
1da177e4c
|
2011 |
} |
f88083005
|
2012 |
data[len] = 0; |
1da177e4c
|
2013 |
} else { |
f5dd3d6fa
|
2014 2015 2016 |
len = strlen(data); if (len > maxlen) len = maxlen; |
8d0608771
|
2017 2018 2019 2020 2021 2022 2023 2024 |
if (*ppos > len) { *lenp = 0; return 0; } data += *ppos; len -= *ppos; |
1da177e4c
|
2025 2026 2027 |
if (len > *lenp) len = *lenp; if (len) |
f88083005
|
2028 |
if (copy_to_user(buffer, data, len)) |
1da177e4c
|
2029 2030 |
return -EFAULT; if (len < *lenp) { |
f88083005
|
2031 2032 |
if (put_user(' ', buffer + len)) |
1da177e4c
|
2033 2034 2035 2036 2037 2038 2039 2040 |
return -EFAULT; len++; } *lenp = len; *ppos += len; } return 0; } |
f4aacea2f
|
2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 |
static void warn_sysctl_write(struct ctl_table *table) { pr_warn_once("%s wrote to %s when file position was not 0! " "This will not be supported in the future. To silence this " "warning, set kernel.sysctl_writes_strict = -1 ", current->comm, table->procname); } |
f5dd3d6fa
|
2051 |
/** |
5f733e8a2
|
2052 |
* proc_first_pos_non_zero_ignore - check if first position is allowed |
d383d4847
|
2053 2054 2055 2056 2057 |
* @ppos: file position * @table: the sysctl table * * Returns true if the first position is non-zero and the sysctl_writes_strict * mode indicates this is not allowed for numeric input types. String proc |
5f733e8a2
|
2058 |
* handlers can ignore the return value. |
d383d4847
|
2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 |
*/ static bool proc_first_pos_non_zero_ignore(loff_t *ppos, struct ctl_table *table) { if (!*ppos) return false; switch (sysctl_writes_strict) { case SYSCTL_WRITES_STRICT: return true; case SYSCTL_WRITES_WARN: warn_sysctl_write(table); return false; default: return false; } } /** |
f5dd3d6fa
|
2078 2079 2080 |
* proc_dostring - read a string sysctl * @table: the sysctl table * @write: %TRUE if this is a write to the sysctl file |
f5dd3d6fa
|
2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 |
* @buffer: the user buffer * @lenp: the size of the user buffer * @ppos: file position * * Reads/writes a string from/to the user buffer. If the kernel * buffer provided is not large enough to hold the string, the * string is truncated. The copied string is %NULL-terminated. * If the string is being read by the user process, it is copied * and a newline ' ' is added. It is truncated if the buffer is * not large enough. * * Returns 0 on success. */ |
8d65af789
|
2095 |
int proc_dostring(struct ctl_table *table, int write, |
f5dd3d6fa
|
2096 2097 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
d383d4847
|
2098 2099 |
if (write) proc_first_pos_non_zero_ignore(ppos, table); |
f4aacea2f
|
2100 |
|
f88083005
|
2101 2102 |
return _proc_do_string((char *)(table->data), table->maxlen, write, (char __user *)buffer, lenp, ppos); |
f5dd3d6fa
|
2103 |
} |
00b7c3395
|
2104 2105 2106 2107 2108 2109 2110 2111 |
static size_t proc_skip_spaces(char **buf) { size_t ret; char *tmp = skip_spaces(*buf); ret = tmp - *buf; *buf = tmp; return ret; } |
9f977fb7a
|
2112 2113 2114 2115 2116 2117 2118 2119 2120 |
static void proc_skip_char(char **buf, size_t *size, const char v) { while (*size) { if (**buf != v) break; (*size)--; (*buf)++; } } |
7f2923c4f
|
2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 |
/** * strtoul_lenient - parse an ASCII formatted integer from a buffer and only * fail on overflow * * @cp: kernel buffer containing the string to parse * @endp: pointer to store the trailing characters * @base: the base to use * @res: where the parsed integer will be stored * * In case of success 0 is returned and @res will contain the parsed integer, * @endp will hold any trailing characters. * This function will fail the parse on overflow. If there wasn't an overflow * the function will defer the decision what characters count as invalid to the * caller. */ static int strtoul_lenient(const char *cp, char **endp, unsigned int base, unsigned long *res) { unsigned long long result; unsigned int rv; cp = _parse_integer_fixup_radix(cp, &base); rv = _parse_integer(cp, base, &result); if ((rv & KSTRTOX_OVERFLOW) || (result != (unsigned long)result)) return -ERANGE; cp += rv; if (endp) *endp = (char *)cp; *res = (unsigned long)result; return 0; } |
00b7c3395
|
2155 2156 |
#define TMPBUFLEN 22 /** |
0fc377bd6
|
2157 |
* proc_get_long - reads an ASCII formatted integer from a user buffer |
00b7c3395
|
2158 |
* |
0fc377bd6
|
2159 2160 2161 2162 2163 2164 2165 |
* @buf: a kernel buffer * @size: size of the kernel buffer * @val: this is where the number will be stored * @neg: set to %TRUE if number is negative * @perm_tr: a vector which contains the allowed trailers * @perm_tr_len: size of the perm_tr vector * @tr: pointer to store the trailer character |
00b7c3395
|
2166 |
* |
0fc377bd6
|
2167 2168 2169 2170 |
* In case of success %0 is returned and @buf and @size are updated with * the amount of bytes read. If @tr is non-NULL and a trailing * character exists (size is non-zero after returning from this * function), @tr is updated with the trailing character. |
00b7c3395
|
2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 |
*/ static int proc_get_long(char **buf, size_t *size, unsigned long *val, bool *neg, const char *perm_tr, unsigned perm_tr_len, char *tr) { int len; char *p, tmp[TMPBUFLEN]; if (!*size) return -EINVAL; len = *size; if (len > TMPBUFLEN - 1) len = TMPBUFLEN - 1; memcpy(tmp, *buf, len); tmp[len] = 0; p = tmp; if (*p == '-' && *size > 1) { *neg = true; p++; } else *neg = false; if (!isdigit(*p)) return -EINVAL; |
7f2923c4f
|
2197 2198 |
if (strtoul_lenient(p, &p, 0, val)) return -EINVAL; |
00b7c3395
|
2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 |
len = p - tmp; /* We don't know if the next char is whitespace thus we may accept * invalid integers (e.g. 1234...a) or two integers instead of one * (e.g. 123...1). So lets not allow such large numbers. */ if (len == TMPBUFLEN - 1) return -EINVAL; if (len < *size && perm_tr_len && !memchr(perm_tr, *p, perm_tr_len)) return -EINVAL; |
1da177e4c
|
2210 |
|
00b7c3395
|
2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 |
if (tr && (len < *size)) *tr = *p; *buf += len; *size -= len; return 0; } /** |
0fc377bd6
|
2221 |
* proc_put_long - converts an integer to a decimal ASCII formatted string |
00b7c3395
|
2222 |
* |
0fc377bd6
|
2223 2224 2225 2226 |
* @buf: the user buffer * @size: the size of the user buffer * @val: the integer to be converted * @neg: sign of the number, %TRUE for negative |
00b7c3395
|
2227 |
* |
0fc377bd6
|
2228 2229 |
* In case of success %0 is returned and @buf and @size are updated with * the amount of bytes written. |
00b7c3395
|
2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 |
*/ static int proc_put_long(void __user **buf, size_t *size, unsigned long val, bool neg) { int len; char tmp[TMPBUFLEN], *p = tmp; sprintf(p, "%s%lu", neg ? "-" : "", val); len = strlen(tmp); if (len > *size) len = *size; if (copy_to_user(*buf, tmp, len)) return -EFAULT; *size -= len; *buf += len; return 0; } #undef TMPBUFLEN static int proc_put_char(void __user **buf, size_t *size, char c) { if (*size) { char __user **buffer = (char __user **)buf; if (put_user(c, *buffer)) return -EFAULT; (*size)--, (*buffer)++; *buf = *buffer; } return 0; } |
1da177e4c
|
2260 |
|
00b7c3395
|
2261 |
static int do_proc_dointvec_conv(bool *negp, unsigned long *lvalp, |
1da177e4c
|
2262 2263 2264 2265 |
int *valp, int write, void *data) { if (write) { |
230633d10
|
2266 2267 2268 2269 2270 2271 2272 2273 2274 |
if (*negp) { if (*lvalp > (unsigned long) INT_MAX + 1) return -EINVAL; *valp = -*lvalp; } else { if (*lvalp > (unsigned long) INT_MAX) return -EINVAL; *valp = *lvalp; } |
1da177e4c
|
2275 2276 2277 |
} else { int val = *valp; if (val < 0) { |
00b7c3395
|
2278 |
*negp = true; |
9a5bc726d
|
2279 |
*lvalp = -(unsigned long)val; |
1da177e4c
|
2280 |
} else { |
00b7c3395
|
2281 |
*negp = false; |
1da177e4c
|
2282 2283 2284 2285 2286 |
*lvalp = (unsigned long)val; } } return 0; } |
4f2fec00a
|
2287 2288 2289 |
static int do_proc_douintvec_conv(unsigned long *lvalp, unsigned int *valp, int write, void *data) |
e7d316a02
|
2290 2291 |
{ if (write) { |
4f2fec00a
|
2292 |
if (*lvalp > UINT_MAX) |
e7d316a02
|
2293 2294 2295 2296 2297 2298 2299 2300 |
return -EINVAL; *valp = *lvalp; } else { unsigned int val = *valp; *lvalp = (unsigned long)val; } return 0; } |
00b7c3395
|
2301 2302 |
static const char proc_wspace_sep[] = { ' ', '\t', ' ' }; |
d8217f076
|
2303 |
static int __do_proc_dointvec(void *tbl_data, struct ctl_table *table, |
8d65af789
|
2304 |
int write, void __user *buffer, |
fcfbd547b
|
2305 |
size_t *lenp, loff_t *ppos, |
00b7c3395
|
2306 |
int (*conv)(bool *negp, unsigned long *lvalp, int *valp, |
1da177e4c
|
2307 2308 2309 |
int write, void *data), void *data) { |
00b7c3395
|
2310 |
int *i, vleft, first = 1, err = 0; |
00b7c3395
|
2311 |
size_t left; |
70f6cbb6f
|
2312 |
char *kbuf = NULL, *p; |
1da177e4c
|
2313 |
|
00b7c3395
|
2314 |
if (!tbl_data || !table->maxlen || !*lenp || (*ppos && !write)) { |
1da177e4c
|
2315 2316 2317 2318 |
*lenp = 0; return 0; } |
fcfbd547b
|
2319 |
i = (int *) tbl_data; |
1da177e4c
|
2320 2321 2322 2323 2324 |
vleft = table->maxlen / sizeof(*i); left = *lenp; if (!conv) conv = do_proc_dointvec_conv; |
00b7c3395
|
2325 |
if (write) { |
d383d4847
|
2326 2327 |
if (proc_first_pos_non_zero_ignore(ppos, table)) goto out; |
f4aacea2f
|
2328 |
|
00b7c3395
|
2329 2330 |
if (left > PAGE_SIZE - 1) left = PAGE_SIZE - 1; |
70f6cbb6f
|
2331 2332 2333 |
p = kbuf = memdup_user_nul(buffer, left); if (IS_ERR(kbuf)) return PTR_ERR(kbuf); |
00b7c3395
|
2334 |
} |
1da177e4c
|
2335 |
for (; left && vleft--; i++, first=0) { |
00b7c3395
|
2336 2337 |
unsigned long lval; bool neg; |
1da177e4c
|
2338 |
|
00b7c3395
|
2339 |
if (write) { |
70f6cbb6f
|
2340 |
left -= proc_skip_spaces(&p); |
1da177e4c
|
2341 |
|
563b04671
|
2342 2343 |
if (!left) break; |
70f6cbb6f
|
2344 |
err = proc_get_long(&p, &left, &lval, &neg, |
00b7c3395
|
2345 2346 2347 |
proc_wspace_sep, sizeof(proc_wspace_sep), NULL); if (err) |
1da177e4c
|
2348 |
break; |
00b7c3395
|
2349 2350 |
if (conv(&neg, &lval, i, 1, data)) { err = -EINVAL; |
1da177e4c
|
2351 |
break; |
00b7c3395
|
2352 |
} |
1da177e4c
|
2353 |
} else { |
00b7c3395
|
2354 2355 2356 2357 |
if (conv(&neg, &lval, i, 0, data)) { err = -EINVAL; break; } |
1da177e4c
|
2358 |
if (!first) |
00b7c3395
|
2359 2360 2361 2362 2363 |
err = proc_put_char(&buffer, &left, '\t'); if (err) break; err = proc_put_long(&buffer, &left, lval, neg); if (err) |
1da177e4c
|
2364 |
break; |
1da177e4c
|
2365 2366 |
} } |
00b7c3395
|
2367 2368 2369 |
if (!write && !first && left && !err) err = proc_put_char(&buffer, &left, ' '); |
563b04671
|
2370 |
if (write && !err && left) |
70f6cbb6f
|
2371 |
left -= proc_skip_spaces(&p); |
1da177e4c
|
2372 |
if (write) { |
70f6cbb6f
|
2373 |
kfree(kbuf); |
00b7c3395
|
2374 2375 |
if (first) return err ? : -EINVAL; |
1da177e4c
|
2376 |
} |
1da177e4c
|
2377 |
*lenp -= left; |
f4aacea2f
|
2378 |
out: |
1da177e4c
|
2379 |
*ppos += *lenp; |
00b7c3395
|
2380 |
return err; |
1da177e4c
|
2381 |
} |
8d65af789
|
2382 |
static int do_proc_dointvec(struct ctl_table *table, int write, |
fcfbd547b
|
2383 |
void __user *buffer, size_t *lenp, loff_t *ppos, |
00b7c3395
|
2384 |
int (*conv)(bool *negp, unsigned long *lvalp, int *valp, |
fcfbd547b
|
2385 2386 2387 |
int write, void *data), void *data) { |
8d65af789
|
2388 |
return __do_proc_dointvec(table->data, table, write, |
fcfbd547b
|
2389 2390 |
buffer, lenp, ppos, conv, data); } |
4f2fec00a
|
2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 |
static int do_proc_douintvec_w(unsigned int *tbl_data, struct ctl_table *table, void __user *buffer, size_t *lenp, loff_t *ppos, int (*conv)(unsigned long *lvalp, unsigned int *valp, int write, void *data), void *data) { unsigned long lval; int err = 0; size_t left; bool neg; char *kbuf = NULL, *p; left = *lenp; if (proc_first_pos_non_zero_ignore(ppos, table)) goto bail_early; if (left > PAGE_SIZE - 1) left = PAGE_SIZE - 1; p = kbuf = memdup_user_nul(buffer, left); if (IS_ERR(kbuf)) return -EINVAL; left -= proc_skip_spaces(&p); if (!left) { err = -EINVAL; goto out_free; } err = proc_get_long(&p, &left, &lval, &neg, proc_wspace_sep, sizeof(proc_wspace_sep), NULL); if (err || neg) { err = -EINVAL; goto out_free; } if (conv(&lval, tbl_data, 1, data)) { err = -EINVAL; goto out_free; } if (!err && left) left -= proc_skip_spaces(&p); out_free: kfree(kbuf); if (err) return -EINVAL; return 0; /* This is in keeping with old __do_proc_dointvec() */ bail_early: *ppos += *lenp; return err; } static int do_proc_douintvec_r(unsigned int *tbl_data, void __user *buffer, size_t *lenp, loff_t *ppos, int (*conv)(unsigned long *lvalp, unsigned int *valp, int write, void *data), void *data) { unsigned long lval; int err = 0; size_t left; left = *lenp; if (conv(&lval, tbl_data, 0, data)) { err = -EINVAL; goto out; } err = proc_put_long(&buffer, &left, lval, false); if (err || !left) goto out; err = proc_put_char(&buffer, &left, ' '); out: *lenp -= left; *ppos += *lenp; return err; } static int __do_proc_douintvec(void *tbl_data, struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos, int (*conv)(unsigned long *lvalp, unsigned int *valp, int write, void *data), void *data) { unsigned int *i, vleft; if (!tbl_data || !table->maxlen || !*lenp || (*ppos && !write)) { *lenp = 0; return 0; } i = (unsigned int *) tbl_data; vleft = table->maxlen / sizeof(*i); /* * Arrays are not supported, keep this simple. *Do not* add * support for them. */ if (vleft != 1) { *lenp = 0; return -EINVAL; } if (!conv) conv = do_proc_douintvec_conv; if (write) return do_proc_douintvec_w(i, table, buffer, lenp, ppos, conv, data); return do_proc_douintvec_r(i, buffer, lenp, ppos, conv, data); } static int do_proc_douintvec(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos, int (*conv)(unsigned long *lvalp, unsigned int *valp, int write, void *data), void *data) { return __do_proc_douintvec(table->data, table, write, buffer, lenp, ppos, conv, data); } |
1da177e4c
|
2531 2532 2533 2534 |
/** * proc_dointvec - read a vector of integers * @table: the sysctl table * @write: %TRUE if this is a write to the sysctl file |
1da177e4c
|
2535 2536 2537 2538 2539 2540 2541 2542 2543 |
* @buffer: the user buffer * @lenp: the size of the user buffer * @ppos: file position * * Reads/writes up to table->maxlen/sizeof(unsigned int) integer * values from/to the user buffer, treated as an ASCII string. * * Returns 0 on success. */ |
8d65af789
|
2544 |
int proc_dointvec(struct ctl_table *table, int write, |
1da177e4c
|
2545 2546 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
e7d316a02
|
2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 |
return do_proc_dointvec(table, write, buffer, lenp, ppos, NULL, NULL); } /** * proc_douintvec - read a vector of unsigned integers * @table: the sysctl table * @write: %TRUE if this is a write to the sysctl file * @buffer: the user buffer * @lenp: the size of the user buffer * @ppos: file position * * Reads/writes up to table->maxlen/sizeof(unsigned int) unsigned integer * values from/to the user buffer, treated as an ASCII string. * * Returns 0 on success. */ int proc_douintvec(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos) { |
4f2fec00a
|
2566 2567 |
return do_proc_douintvec(table, write, buffer, lenp, ppos, do_proc_douintvec_conv, NULL); |
1da177e4c
|
2568 |
} |
34f5a3989
|
2569 |
/* |
25ddbb18a
|
2570 2571 |
* Taint values can only be increased * This means we can safely use a temporary. |
34f5a3989
|
2572 |
*/ |
8d65af789
|
2573 |
static int proc_taint(struct ctl_table *table, int write, |
34f5a3989
|
2574 2575 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
25ddbb18a
|
2576 2577 2578 |
struct ctl_table t; unsigned long tmptaint = get_taint(); int err; |
34f5a3989
|
2579 |
|
91fcd412e
|
2580 |
if (write && !capable(CAP_SYS_ADMIN)) |
34f5a3989
|
2581 |
return -EPERM; |
25ddbb18a
|
2582 2583 |
t = *table; t.data = &tmptaint; |
8d65af789
|
2584 |
err = proc_doulongvec_minmax(&t, write, buffer, lenp, ppos); |
25ddbb18a
|
2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 |
if (err < 0) return err; if (write) { /* * Poor man's atomic or. Not worth adding a primitive * to everyone's atomic.h for this */ int i; for (i = 0; i < BITS_PER_LONG && tmptaint >> i; i++) { if ((tmptaint >> i) & 1) |
373d4d099
|
2596 |
add_taint(i, LOCKDEP_STILL_OK); |
25ddbb18a
|
2597 2598 2599 2600 |
} } return err; |
34f5a3989
|
2601 |
} |
bfdc0b497
|
2602 |
#ifdef CONFIG_PRINTK |
620f6e8e8
|
2603 |
static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write, |
bfdc0b497
|
2604 2605 2606 2607 2608 2609 2610 2611 |
void __user *buffer, size_t *lenp, loff_t *ppos) { if (write && !capable(CAP_SYS_ADMIN)) return -EPERM; return proc_dointvec_minmax(table, write, buffer, lenp, ppos); } #endif |
24704f361
|
2612 2613 2614 2615 2616 2617 2618 2619 2620 |
/** * struct do_proc_dointvec_minmax_conv_param - proc_dointvec_minmax() range checking structure * @min: pointer to minimum allowable value * @max: pointer to maximum allowable value * * The do_proc_dointvec_minmax_conv_param structure provides the * minimum and maximum values for doing range checking for those sysctl * parameters that use the proc_dointvec_minmax() handler. */ |
1da177e4c
|
2621 2622 2623 2624 |
struct do_proc_dointvec_minmax_conv_param { int *min; int *max; }; |
00b7c3395
|
2625 2626 |
static int do_proc_dointvec_minmax_conv(bool *negp, unsigned long *lvalp, int *valp, |
1da177e4c
|
2627 2628 |
int write, void *data) { |
2bc4fc60f
|
2629 |
int tmp, ret; |
1da177e4c
|
2630 |
struct do_proc_dointvec_minmax_conv_param *param = data; |
2bc4fc60f
|
2631 2632 2633 2634 2635 2636 2637 2638 2639 |
/* * If writing, first do so via a temporary local int so we can * bounds-check it before touching *valp. */ int *ip = write ? &tmp : valp; ret = do_proc_dointvec_conv(negp, lvalp, ip, write, data); if (ret) return ret; |
1da177e4c
|
2640 |
if (write) { |
2bc4fc60f
|
2641 2642 |
if ((param->min && *param->min > tmp) || (param->max && *param->max < tmp)) |
1da177e4c
|
2643 |
return -EINVAL; |
2bc4fc60f
|
2644 |
*valp = tmp; |
1da177e4c
|
2645 |
} |
2bc4fc60f
|
2646 |
|
1da177e4c
|
2647 2648 2649 2650 2651 2652 2653 |
return 0; } /** * proc_dointvec_minmax - read a vector of integers with min/max values * @table: the sysctl table * @write: %TRUE if this is a write to the sysctl file |
1da177e4c
|
2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 |
* @buffer: the user buffer * @lenp: the size of the user buffer * @ppos: file position * * Reads/writes up to table->maxlen/sizeof(unsigned int) integer * values from/to the user buffer, treated as an ASCII string. * * This routine will ensure the values are within the range specified by * table->extra1 (min) and table->extra2 (max). * |
24704f361
|
2664 |
* Returns 0 on success or -EINVAL on write when the range check fails. |
1da177e4c
|
2665 |
*/ |
8d65af789
|
2666 |
int proc_dointvec_minmax(struct ctl_table *table, int write, |
1da177e4c
|
2667 2668 2669 2670 2671 2672 |
void __user *buffer, size_t *lenp, loff_t *ppos) { struct do_proc_dointvec_minmax_conv_param param = { .min = (int *) table->extra1, .max = (int *) table->extra2, }; |
8d65af789
|
2673 |
return do_proc_dointvec(table, write, buffer, lenp, ppos, |
1da177e4c
|
2674 2675 |
do_proc_dointvec_minmax_conv, ¶m); } |
24704f361
|
2676 2677 2678 2679 2680 2681 2682 2683 2684 |
/** * struct do_proc_douintvec_minmax_conv_param - proc_douintvec_minmax() range checking structure * @min: pointer to minimum allowable value * @max: pointer to maximum allowable value * * The do_proc_douintvec_minmax_conv_param structure provides the * minimum and maximum values for doing range checking for those sysctl * parameters that use the proc_douintvec_minmax() handler. */ |
61d9b56a8
|
2685 2686 2687 2688 2689 2690 2691 2692 2693 |
struct do_proc_douintvec_minmax_conv_param { unsigned int *min; unsigned int *max; }; static int do_proc_douintvec_minmax_conv(unsigned long *lvalp, unsigned int *valp, int write, void *data) { |
2bc4fc60f
|
2694 2695 |
int ret; unsigned int tmp; |
61d9b56a8
|
2696 |
struct do_proc_douintvec_minmax_conv_param *param = data; |
2bc4fc60f
|
2697 2698 |
/* write via temporary local uint for bounds-checking */ unsigned int *up = write ? &tmp : valp; |
61d9b56a8
|
2699 |
|
2bc4fc60f
|
2700 2701 2702 |
ret = do_proc_douintvec_conv(lvalp, up, write, data); if (ret) return ret; |
fb910c42c
|
2703 |
|
2bc4fc60f
|
2704 2705 2706 |
if (write) { if ((param->min && *param->min > tmp) || (param->max && *param->max < tmp)) |
61d9b56a8
|
2707 |
return -ERANGE; |
2bc4fc60f
|
2708 |
*valp = tmp; |
61d9b56a8
|
2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 |
} return 0; } /** * proc_douintvec_minmax - read a vector of unsigned ints with min/max values * @table: the sysctl table * @write: %TRUE if this is a write to the sysctl file * @buffer: the user buffer * @lenp: the size of the user buffer * @ppos: file position * * Reads/writes up to table->maxlen/sizeof(unsigned int) unsigned integer * values from/to the user buffer, treated as an ASCII string. Negative * strings are not allowed. * * This routine will ensure the values are within the range specified by * table->extra1 (min) and table->extra2 (max). There is a final sanity * check for UINT_MAX to avoid having to support wrap around uses from * userspace. * |
24704f361
|
2731 |
* Returns 0 on success or -ERANGE on write when the range check fails. |
61d9b56a8
|
2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 |
*/ int proc_douintvec_minmax(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos) { struct do_proc_douintvec_minmax_conv_param param = { .min = (unsigned int *) table->extra1, .max = (unsigned int *) table->extra2, }; return do_proc_douintvec(table, write, buffer, lenp, ppos, do_proc_douintvec_minmax_conv, ¶m); } |
7a8d18194
|
2743 2744 2745 2746 |
static int do_proc_dopipe_max_size_conv(unsigned long *lvalp, unsigned int *valp, int write, void *data) { |
7a8d18194
|
2747 |
if (write) { |
fb910c42c
|
2748 |
unsigned int val; |
7a8d18194
|
2749 |
|
fb910c42c
|
2750 |
val = round_pipe_size(*lvalp); |
7a8d18194
|
2751 2752 |
if (val == 0) return -EINVAL; |
7a8d18194
|
2753 2754 2755 2756 2757 2758 2759 2760 |
*valp = val; } else { unsigned int val = *valp; *lvalp = (unsigned long) val; } return 0; } |
319e0a21b
|
2761 2762 |
static int proc_dopipe_max_size(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos) |
7a8d18194
|
2763 |
{ |
7a8d18194
|
2764 |
return do_proc_douintvec(table, write, buffer, lenp, ppos, |
4c2e4befb
|
2765 |
do_proc_dopipe_max_size_conv, NULL); |
7a8d18194
|
2766 |
} |
54b501992
|
2767 2768 |
static void validate_coredump_safety(void) { |
046d662f4
|
2769 |
#ifdef CONFIG_COREDUMP |
e579d2c25
|
2770 |
if (suid_dumpable == SUID_DUMP_ROOT && |
54b501992
|
2771 |
core_pattern[0] != '/' && core_pattern[0] != '|') { |
760c6a913
|
2772 2773 2774 2775 2776 2777 2778 2779 |
printk(KERN_WARNING "Unsafe core_pattern used with fs.suid_dumpable=2. " "Pipe handler or fully qualified core dump path required. " "Set kernel.core_pattern before fs.suid_dumpable. " ); |
54b501992
|
2780 |
} |
046d662f4
|
2781 |
#endif |
54b501992
|
2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 |
} static int proc_dointvec_minmax_coredump(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos) { int error = proc_dointvec_minmax(table, write, buffer, lenp, ppos); if (!error) validate_coredump_safety(); return error; } |
046d662f4
|
2792 |
#ifdef CONFIG_COREDUMP |
54b501992
|
2793 2794 2795 2796 2797 2798 2799 2800 |
static int proc_dostring_coredump(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos) { int error = proc_dostring(table, write, buffer, lenp, ppos); if (!error) validate_coredump_safety(); return error; } |
046d662f4
|
2801 |
#endif |
54b501992
|
2802 |
|
d8217f076
|
2803 |
static int __do_proc_doulongvec_minmax(void *data, struct ctl_table *table, int write, |
1da177e4c
|
2804 2805 2806 2807 2808 |
void __user *buffer, size_t *lenp, loff_t *ppos, unsigned long convmul, unsigned long convdiv) { |
00b7c3395
|
2809 2810 |
unsigned long *i, *min, *max; int vleft, first = 1, err = 0; |
00b7c3395
|
2811 |
size_t left; |
70f6cbb6f
|
2812 |
char *kbuf = NULL, *p; |
00b7c3395
|
2813 2814 |
if (!data || !table->maxlen || !*lenp || (*ppos && !write)) { |
1da177e4c
|
2815 2816 2817 |
*lenp = 0; return 0; } |
00b7c3395
|
2818 |
|
fcfbd547b
|
2819 |
i = (unsigned long *) data; |
1da177e4c
|
2820 2821 2822 2823 |
min = (unsigned long *) table->extra1; max = (unsigned long *) table->extra2; vleft = table->maxlen / sizeof(unsigned long); left = *lenp; |
00b7c3395
|
2824 2825 |
if (write) { |
d383d4847
|
2826 2827 |
if (proc_first_pos_non_zero_ignore(ppos, table)) goto out; |
f4aacea2f
|
2828 |
|
00b7c3395
|
2829 2830 |
if (left > PAGE_SIZE - 1) left = PAGE_SIZE - 1; |
70f6cbb6f
|
2831 2832 2833 |
p = kbuf = memdup_user_nul(buffer, left); if (IS_ERR(kbuf)) return PTR_ERR(kbuf); |
00b7c3395
|
2834 |
} |
27b3d80a7
|
2835 |
for (; left && vleft--; i++, first = 0) { |
00b7c3395
|
2836 |
unsigned long val; |
1da177e4c
|
2837 |
if (write) { |
00b7c3395
|
2838 |
bool neg; |
70f6cbb6f
|
2839 |
left -= proc_skip_spaces(&p); |
09be17840
|
2840 2841 |
if (!left) break; |
00b7c3395
|
2842 |
|
70f6cbb6f
|
2843 |
err = proc_get_long(&p, &left, &val, &neg, |
00b7c3395
|
2844 2845 2846 |
proc_wspace_sep, sizeof(proc_wspace_sep), NULL); if (err) |
1da177e4c
|
2847 2848 |
break; if (neg) |
1da177e4c
|
2849 |
continue; |
ff9f8a7cf
|
2850 |
val = convmul * val / convdiv; |
e260ad01f
|
2851 2852 2853 2854 |
if ((min && val < *min) || (max && val > *max)) { err = -EINVAL; break; } |
1da177e4c
|
2855 2856 |
*i = val; } else { |
00b7c3395
|
2857 |
val = convdiv * (*i) / convmul; |
7833819d2
|
2858 |
if (!first) { |
00b7c3395
|
2859 |
err = proc_put_char(&buffer, &left, '\t'); |
7833819d2
|
2860 2861 2862 |
if (err) break; } |
00b7c3395
|
2863 2864 2865 |
err = proc_put_long(&buffer, &left, val, false); if (err) break; |
1da177e4c
|
2866 2867 |
} } |
00b7c3395
|
2868 2869 2870 2871 |
if (!write && !first && left && !err) err = proc_put_char(&buffer, &left, ' '); if (write && !err) |
70f6cbb6f
|
2872 |
left -= proc_skip_spaces(&p); |
1da177e4c
|
2873 |
if (write) { |
70f6cbb6f
|
2874 |
kfree(kbuf); |
00b7c3395
|
2875 2876 |
if (first) return err ? : -EINVAL; |
1da177e4c
|
2877 |
} |
1da177e4c
|
2878 |
*lenp -= left; |
f4aacea2f
|
2879 |
out: |
1da177e4c
|
2880 |
*ppos += *lenp; |
00b7c3395
|
2881 |
return err; |
1da177e4c
|
2882 |
} |
d8217f076
|
2883 |
static int do_proc_doulongvec_minmax(struct ctl_table *table, int write, |
fcfbd547b
|
2884 2885 2886 2887 2888 2889 |
void __user *buffer, size_t *lenp, loff_t *ppos, unsigned long convmul, unsigned long convdiv) { return __do_proc_doulongvec_minmax(table->data, table, write, |
8d65af789
|
2890 |
buffer, lenp, ppos, convmul, convdiv); |
fcfbd547b
|
2891 |
} |
1da177e4c
|
2892 2893 2894 2895 |
/** * proc_doulongvec_minmax - read a vector of long integers with min/max values * @table: the sysctl table * @write: %TRUE if this is a write to the sysctl file |
1da177e4c
|
2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 |
* @buffer: the user buffer * @lenp: the size of the user buffer * @ppos: file position * * Reads/writes up to table->maxlen/sizeof(unsigned long) unsigned long * values from/to the user buffer, treated as an ASCII string. * * This routine will ensure the values are within the range specified by * table->extra1 (min) and table->extra2 (max). * * Returns 0 on success. */ |
8d65af789
|
2908 |
int proc_doulongvec_minmax(struct ctl_table *table, int write, |
1da177e4c
|
2909 2910 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
8d65af789
|
2911 |
return do_proc_doulongvec_minmax(table, write, buffer, lenp, ppos, 1l, 1l); |
1da177e4c
|
2912 2913 2914 2915 2916 2917 |
} /** * proc_doulongvec_ms_jiffies_minmax - read a vector of millisecond values with min/max values * @table: the sysctl table * @write: %TRUE if this is a write to the sysctl file |
1da177e4c
|
2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 |
* @buffer: the user buffer * @lenp: the size of the user buffer * @ppos: file position * * Reads/writes up to table->maxlen/sizeof(unsigned long) unsigned long * values from/to the user buffer, treated as an ASCII string. The values * are treated as milliseconds, and converted to jiffies when they are stored. * * This routine will ensure the values are within the range specified by * table->extra1 (min) and table->extra2 (max). * * Returns 0 on success. */ |
d8217f076
|
2931 |
int proc_doulongvec_ms_jiffies_minmax(struct ctl_table *table, int write, |
1da177e4c
|
2932 2933 2934 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
8d65af789
|
2935 |
return do_proc_doulongvec_minmax(table, write, buffer, |
1da177e4c
|
2936 2937 |
lenp, ppos, HZ, 1000l); } |
00b7c3395
|
2938 |
static int do_proc_dointvec_jiffies_conv(bool *negp, unsigned long *lvalp, |
1da177e4c
|
2939 2940 2941 2942 |
int *valp, int write, void *data) { if (write) { |
63259457a
|
2943 |
if (*lvalp > INT_MAX / HZ) |
cba9f33d1
|
2944 |
return 1; |
1da177e4c
|
2945 2946 2947 2948 2949 |
*valp = *negp ? -(*lvalp*HZ) : (*lvalp*HZ); } else { int val = *valp; unsigned long lval; if (val < 0) { |
00b7c3395
|
2950 |
*negp = true; |
9a5bc726d
|
2951 |
lval = -(unsigned long)val; |
1da177e4c
|
2952 |
} else { |
00b7c3395
|
2953 |
*negp = false; |
1da177e4c
|
2954 2955 2956 2957 2958 2959 |
lval = (unsigned long)val; } *lvalp = lval / HZ; } return 0; } |
00b7c3395
|
2960 |
static int do_proc_dointvec_userhz_jiffies_conv(bool *negp, unsigned long *lvalp, |
1da177e4c
|
2961 2962 2963 2964 |
int *valp, int write, void *data) { if (write) { |
cba9f33d1
|
2965 2966 |
if (USER_HZ < HZ && *lvalp > (LONG_MAX / HZ) * USER_HZ) return 1; |
1da177e4c
|
2967 2968 2969 2970 2971 |
*valp = clock_t_to_jiffies(*negp ? -*lvalp : *lvalp); } else { int val = *valp; unsigned long lval; if (val < 0) { |
00b7c3395
|
2972 |
*negp = true; |
9a5bc726d
|
2973 |
lval = -(unsigned long)val; |
1da177e4c
|
2974 |
} else { |
00b7c3395
|
2975 |
*negp = false; |
1da177e4c
|
2976 2977 2978 2979 2980 2981 |
lval = (unsigned long)val; } *lvalp = jiffies_to_clock_t(lval); } return 0; } |
00b7c3395
|
2982 |
static int do_proc_dointvec_ms_jiffies_conv(bool *negp, unsigned long *lvalp, |
1da177e4c
|
2983 2984 2985 2986 |
int *valp, int write, void *data) { if (write) { |
d738ce8fd
|
2987 2988 2989 2990 2991 |
unsigned long jif = msecs_to_jiffies(*negp ? -*lvalp : *lvalp); if (jif > INT_MAX) return 1; *valp = (int)jif; |
1da177e4c
|
2992 2993 2994 2995 |
} else { int val = *valp; unsigned long lval; if (val < 0) { |
00b7c3395
|
2996 |
*negp = true; |
9a5bc726d
|
2997 |
lval = -(unsigned long)val; |
1da177e4c
|
2998 |
} else { |
00b7c3395
|
2999 |
*negp = false; |
1da177e4c
|
3000 3001 3002 3003 3004 3005 3006 3007 3008 3009 3010 |
lval = (unsigned long)val; } *lvalp = jiffies_to_msecs(lval); } return 0; } /** * proc_dointvec_jiffies - read a vector of integers as seconds * @table: the sysctl table * @write: %TRUE if this is a write to the sysctl file |
1da177e4c
|
3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 |
* @buffer: the user buffer * @lenp: the size of the user buffer * @ppos: file position * * Reads/writes up to table->maxlen/sizeof(unsigned int) integer * values from/to the user buffer, treated as an ASCII string. * The values read are assumed to be in seconds, and are converted into * jiffies. * * Returns 0 on success. */ |
8d65af789
|
3022 |
int proc_dointvec_jiffies(struct ctl_table *table, int write, |
1da177e4c
|
3023 3024 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
8d65af789
|
3025 |
return do_proc_dointvec(table,write,buffer,lenp,ppos, |
1da177e4c
|
3026 3027 3028 3029 3030 3031 3032 |
do_proc_dointvec_jiffies_conv,NULL); } /** * proc_dointvec_userhz_jiffies - read a vector of integers as 1/USER_HZ seconds * @table: the sysctl table * @write: %TRUE if this is a write to the sysctl file |
1da177e4c
|
3033 3034 |
* @buffer: the user buffer * @lenp: the size of the user buffer |
1e5d53314
|
3035 |
* @ppos: pointer to the file position |
1da177e4c
|
3036 3037 3038 3039 3040 3041 3042 3043 |
* * Reads/writes up to table->maxlen/sizeof(unsigned int) integer * values from/to the user buffer, treated as an ASCII string. * The values read are assumed to be in 1/USER_HZ seconds, and * are converted into jiffies. * * Returns 0 on success. */ |
8d65af789
|
3044 |
int proc_dointvec_userhz_jiffies(struct ctl_table *table, int write, |
1da177e4c
|
3045 3046 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
8d65af789
|
3047 |
return do_proc_dointvec(table,write,buffer,lenp,ppos, |
1da177e4c
|
3048 3049 3050 3051 3052 3053 3054 |
do_proc_dointvec_userhz_jiffies_conv,NULL); } /** * proc_dointvec_ms_jiffies - read a vector of integers as 1 milliseconds * @table: the sysctl table * @write: %TRUE if this is a write to the sysctl file |
1da177e4c
|
3055 3056 |
* @buffer: the user buffer * @lenp: the size of the user buffer |
67be2dd1b
|
3057 3058 |
* @ppos: file position * @ppos: the current position in the file |
1da177e4c
|
3059 3060 3061 3062 3063 3064 3065 3066 |
* * Reads/writes up to table->maxlen/sizeof(unsigned int) integer * values from/to the user buffer, treated as an ASCII string. * The values read are assumed to be in 1/1000 seconds, and * are converted into jiffies. * * Returns 0 on success. */ |
8d65af789
|
3067 |
int proc_dointvec_ms_jiffies(struct ctl_table *table, int write, |
1da177e4c
|
3068 3069 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
8d65af789
|
3070 |
return do_proc_dointvec(table, write, buffer, lenp, ppos, |
1da177e4c
|
3071 3072 |
do_proc_dointvec_ms_jiffies_conv, NULL); } |
8d65af789
|
3073 |
static int proc_do_cad_pid(struct ctl_table *table, int write, |
9ec52099e
|
3074 3075 3076 3077 3078 |
void __user *buffer, size_t *lenp, loff_t *ppos) { struct pid *new_pid; pid_t tmp; int r; |
6c5f3e7b4
|
3079 |
tmp = pid_vnr(cad_pid); |
9ec52099e
|
3080 |
|
8d65af789
|
3081 |
r = __do_proc_dointvec(&tmp, table, write, buffer, |
9ec52099e
|
3082 3083 3084 3085 3086 3087 3088 3089 3090 3091 3092 |
lenp, ppos, NULL, NULL); if (r || !write) return r; new_pid = find_get_pid(tmp); if (!new_pid) return -ESRCH; put_pid(xchg(&cad_pid, new_pid)); return 0; } |
9f977fb7a
|
3093 3094 3095 3096 3097 3098 3099 3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 |
/** * proc_do_large_bitmap - read/write from/to a large bitmap * @table: the sysctl table * @write: %TRUE if this is a write to the sysctl file * @buffer: the user buffer * @lenp: the size of the user buffer * @ppos: file position * * The bitmap is stored at table->data and the bitmap length (in bits) * in table->maxlen. * * We use a range comma separated format (e.g. 1,3-4,10-10) so that * large bitmaps may be represented in a compact manner. Writing into * the file will clear the bitmap then update it with the given input. * * Returns 0 on success. */ int proc_do_large_bitmap(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos) { int err = 0; bool first = 1; size_t left = *lenp; unsigned long bitmap_len = table->maxlen; |
122ff243f
|
3117 |
unsigned long *bitmap = *(unsigned long **) table->data; |
9f977fb7a
|
3118 3119 3120 3121 |
unsigned long *tmp_bitmap = NULL; char tr_a[] = { '-', ',', ' ' }, tr_b[] = { ',', ' ', 0 }, c; |
122ff243f
|
3122 |
if (!bitmap || !bitmap_len || !left || (*ppos && !write)) { |
9f977fb7a
|
3123 3124 3125 3126 3127 |
*lenp = 0; return 0; } if (write) { |
70f6cbb6f
|
3128 |
char *kbuf, *p; |
3116ad38f
|
3129 |
size_t skipped = 0; |
9f977fb7a
|
3130 |
|
3116ad38f
|
3131 |
if (left > PAGE_SIZE - 1) { |
9f977fb7a
|
3132 |
left = PAGE_SIZE - 1; |
3116ad38f
|
3133 3134 3135 |
/* How much of the buffer we'll skip this pass */ skipped = *lenp - left; } |
9f977fb7a
|
3136 |
|
70f6cbb6f
|
3137 3138 3139 |
p = kbuf = memdup_user_nul(buffer, left); if (IS_ERR(kbuf)) return PTR_ERR(kbuf); |
9f977fb7a
|
3140 |
|
475dae385
|
3141 |
tmp_bitmap = bitmap_zalloc(bitmap_len, GFP_KERNEL); |
9f977fb7a
|
3142 |
if (!tmp_bitmap) { |
70f6cbb6f
|
3143 |
kfree(kbuf); |
9f977fb7a
|
3144 3145 |
return -ENOMEM; } |
70f6cbb6f
|
3146 3147 |
proc_skip_char(&p, &left, ' '); |
9f977fb7a
|
3148 3149 3150 |
while (!err && left) { unsigned long val_a, val_b; bool neg; |
3116ad38f
|
3151 |
size_t saved_left; |
9f977fb7a
|
3152 |
|
3116ad38f
|
3153 3154 |
/* In case we stop parsing mid-number, we can reset */ saved_left = left; |
70f6cbb6f
|
3155 |
err = proc_get_long(&p, &left, &val_a, &neg, tr_a, |
9f977fb7a
|
3156 |
sizeof(tr_a), &c); |
3116ad38f
|
3157 3158 3159 3160 3161 3162 3163 3164 3165 |
/* * If we consumed the entirety of a truncated buffer or * only one char is left (may be a "-"), then stop here, * reset, & come back for more. */ if ((left <= 1) && skipped) { left = saved_left; break; } |
9f977fb7a
|
3166 3167 3168 3169 3170 3171 3172 3173 3174 |
if (err) break; if (val_a >= bitmap_len || neg) { err = -EINVAL; break; } val_b = val_a; if (left) { |
70f6cbb6f
|
3175 |
p++; |
9f977fb7a
|
3176 3177 3178 3179 |
left--; } if (c == '-') { |
70f6cbb6f
|
3180 |
err = proc_get_long(&p, &left, &val_b, |
9f977fb7a
|
3181 3182 |
&neg, tr_b, sizeof(tr_b), &c); |
3116ad38f
|
3183 3184 3185 3186 3187 3188 3189 3190 |
/* * If we consumed all of a truncated buffer or * then stop here, reset, & come back for more. */ if (!left && skipped) { left = saved_left; break; } |
9f977fb7a
|
3191 3192 3193 3194 3195 3196 3197 3198 |
if (err) break; if (val_b >= bitmap_len || neg || val_a > val_b) { err = -EINVAL; break; } if (left) { |
70f6cbb6f
|
3199 |
p++; |
9f977fb7a
|
3200 3201 3202 |
left--; } } |
5a04cca6c
|
3203 |
bitmap_set(tmp_bitmap, val_a, val_b - val_a + 1); |
9f977fb7a
|
3204 |
first = 0; |
70f6cbb6f
|
3205 3206 |
proc_skip_char(&p, &left, ' '); |
9f977fb7a
|
3207 |
} |
70f6cbb6f
|
3208 |
kfree(kbuf); |
3116ad38f
|
3209 |
left += skipped; |
9f977fb7a
|
3210 3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223 3224 3225 3226 3227 3228 3229 3230 3231 3232 3233 3234 3235 3236 3237 3238 3239 3240 3241 3242 3243 3244 3245 3246 3247 3248 |
} else { unsigned long bit_a, bit_b = 0; while (left) { bit_a = find_next_bit(bitmap, bitmap_len, bit_b); if (bit_a >= bitmap_len) break; bit_b = find_next_zero_bit(bitmap, bitmap_len, bit_a + 1) - 1; if (!first) { err = proc_put_char(&buffer, &left, ','); if (err) break; } err = proc_put_long(&buffer, &left, bit_a, false); if (err) break; if (bit_a != bit_b) { err = proc_put_char(&buffer, &left, '-'); if (err) break; err = proc_put_long(&buffer, &left, bit_b, false); if (err) break; } first = 0; bit_b++; } if (!err) err = proc_put_char(&buffer, &left, ' '); } if (!err) { if (write) { if (*ppos) bitmap_or(bitmap, bitmap, tmp_bitmap, bitmap_len); else |
5a04cca6c
|
3249 |
bitmap_copy(bitmap, tmp_bitmap, bitmap_len); |
9f977fb7a
|
3250 |
} |
9f977fb7a
|
3251 3252 |
*lenp -= left; *ppos += *lenp; |
9f977fb7a
|
3253 |
} |
f9eb2fdd0
|
3254 |
|
475dae385
|
3255 |
bitmap_free(tmp_bitmap); |
f9eb2fdd0
|
3256 |
return err; |
9f977fb7a
|
3257 |
} |
556105000
|
3258 |
#else /* CONFIG_PROC_SYSCTL */ |
1da177e4c
|
3259 |
|
8d65af789
|
3260 |
int proc_dostring(struct ctl_table *table, int write, |
1da177e4c
|
3261 3262 3263 3264 |
void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
8d65af789
|
3265 |
int proc_dointvec(struct ctl_table *table, int write, |
1da177e4c
|
3266 |
void __user *buffer, size_t *lenp, loff_t *ppos) |
1da177e4c
|
3267 3268 3269 |
{ return -ENOSYS; } |
e7d316a02
|
3270 3271 3272 3273 3274 |
int proc_douintvec(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
8d65af789
|
3275 |
int proc_dointvec_minmax(struct ctl_table *table, int write, |
1da177e4c
|
3276 3277 3278 3279 |
void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
61d9b56a8
|
3280 3281 3282 3283 3284 |
int proc_douintvec_minmax(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
8d65af789
|
3285 |
int proc_dointvec_jiffies(struct ctl_table *table, int write, |
1da177e4c
|
3286 3287 3288 3289 |
void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
8d65af789
|
3290 |
int proc_dointvec_userhz_jiffies(struct ctl_table *table, int write, |
1da177e4c
|
3291 3292 3293 3294 |
void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
8d65af789
|
3295 |
int proc_dointvec_ms_jiffies(struct ctl_table *table, int write, |
1da177e4c
|
3296 3297 3298 3299 |
void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
8d65af789
|
3300 |
int proc_doulongvec_minmax(struct ctl_table *table, int write, |
1da177e4c
|
3301 3302 3303 3304 |
void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
d8217f076
|
3305 |
int proc_doulongvec_ms_jiffies_minmax(struct ctl_table *table, int write, |
1da177e4c
|
3306 3307 3308 3309 3310 |
void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
0bc199854
|
3311 3312 3313 3314 3315 |
int proc_do_large_bitmap(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
1da177e4c
|
3316 |
|
556105000
|
3317 |
#endif /* CONFIG_PROC_SYSCTL */ |
1da177e4c
|
3318 |
|
a8e11e5c5
|
3319 3320 3321 3322 |
#if defined(CONFIG_SYSCTL) int proc_do_static_key(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos) |
492ecee89
|
3323 |
{ |
a8e11e5c5
|
3324 3325 3326 3327 3328 3329 3330 |
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, |
eec4844fa
|
3331 3332 |
.extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, |
a8e11e5c5
|
3333 |
}; |
492ecee89
|
3334 3335 3336 |
if (write && !capable(CAP_SYS_ADMIN)) return -EPERM; |
a8e11e5c5
|
3337 3338 |
mutex_lock(&static_key_mutex); val = static_key_enabled(key); |
492ecee89
|
3339 3340 |
ret = proc_dointvec_minmax(&tmp, write, buffer, lenp, ppos); if (write && !ret) { |
a8e11e5c5
|
3341 3342 |
if (val) static_key_enable(key); |
492ecee89
|
3343 |
else |
a8e11e5c5
|
3344 |
static_key_disable(key); |
492ecee89
|
3345 |
} |
a8e11e5c5
|
3346 |
mutex_unlock(&static_key_mutex); |
492ecee89
|
3347 3348 |
return ret; } |
3fcc5530b
|
3349 |
#endif |
1da177e4c
|
3350 3351 3352 3353 3354 |
/* * No sense putting this after each symbol definition, twice, * exception granted :-) */ EXPORT_SYMBOL(proc_dointvec); |
e7d316a02
|
3355 |
EXPORT_SYMBOL(proc_douintvec); |
1da177e4c
|
3356 3357 |
EXPORT_SYMBOL(proc_dointvec_jiffies); EXPORT_SYMBOL(proc_dointvec_minmax); |
61d9b56a8
|
3358 |
EXPORT_SYMBOL_GPL(proc_douintvec_minmax); |
1da177e4c
|
3359 3360 3361 3362 3363 |
EXPORT_SYMBOL(proc_dointvec_userhz_jiffies); EXPORT_SYMBOL(proc_dointvec_ms_jiffies); EXPORT_SYMBOL(proc_dostring); EXPORT_SYMBOL(proc_doulongvec_minmax); EXPORT_SYMBOL(proc_doulongvec_ms_jiffies_minmax); |
0bc199854
|
3364 |
EXPORT_SYMBOL(proc_do_large_bitmap); |