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kernel/sysctl.c
69.4 KB
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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> #include <linux/mm.h> #include <linux/swap.h> #include <linux/slab.h> #include <linux/sysctl.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/kmemcheck.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 <asm/uaccess.h> #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_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_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 sysctl_overcommit_memory; extern int sysctl_overcommit_ratio; extern int max_threads; |
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extern int core_uses_pid; |
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extern int suid_dumpable; |
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extern char core_pattern[]; |
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extern unsigned int core_pipe_limit; |
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extern int pid_max; extern int min_free_kbytes; |
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extern int pid_max_min, pid_max_max; |
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extern int sysctl_drop_caches; |
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extern int percpu_pagelist_fraction; |
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extern int compat_log; |
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extern int latencytop_enabled; |
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extern 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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#ifdef CONFIG_BLOCK |
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extern int blk_iopoll_enabled; |
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#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; |
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static int neg_one = -1; |
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#endif |
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static int zero; |
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static int __maybe_unused one = 1; static int __maybe_unused two = 2; |
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static int __maybe_unused three = 3; |
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static unsigned long one_ul = 1; |
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static int one_hundred = 100; |
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#ifdef CONFIG_PRINTK static int ten_thousand = 10000; #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; |
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static int min_percpu_pagelist_fract = 8; |
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static int ngroups_max = NGROUPS_MAX; |
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static const int cap_last_cap = CAP_LAST_CAP; |
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#ifdef CONFIG_INOTIFY_USER #include <linux/inotify.h> #endif |
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#ifdef CONFIG_SPARC |
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#include <asm/system.h> |
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#endif |
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#ifdef CONFIG_SPARC64 extern int sysctl_tsb_ratio; #endif |
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#ifdef __hppa__ extern int pwrsw_enabled; extern int unaligned_enabled; #endif |
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|
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#ifdef CONFIG_IA64 extern int no_unaligned_warning; |
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extern int unaligned_dump_stack; |
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#endif |
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#ifdef CONFIG_PROC_SYSCTL |
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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 static int proc_dmesg_restrict(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos); #endif |
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#ifdef CONFIG_MAGIC_SYSRQ |
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/* Note: sysrq code uses it's own private copy */ static int __sysrq_enabled = SYSRQ_DEFAULT_ENABLE; |
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static int sysrq_sysctl_handler(ctl_table *table, int write, 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 root_table[]; |
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static struct ctl_table_root sysctl_table_root; static struct ctl_table_header root_table_header = { |
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{{.count = 1, |
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.ctl_table = root_table, |
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.ctl_entry = LIST_HEAD_INIT(sysctl_table_root.default_set.list),}}, |
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.root = &sysctl_table_root, |
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.set = &sysctl_table_root.default_set, |
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}; static struct ctl_table_root sysctl_table_root = { .root_list = LIST_HEAD_INIT(sysctl_table_root.root_list), |
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.default_set.list = LIST_HEAD_INIT(root_table_header.ctl_entry), |
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}; |
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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 HAVE_ARCH_PICK_MMAP_LAYOUT int sysctl_legacy_va_layout; #endif |
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/* The default sysctl tables: */ |
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static struct ctl_table root_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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static int min_sched_tunable_scaling = SCHED_TUNABLESCALING_NONE; static int max_sched_tunable_scaling = SCHED_TUNABLESCALING_END-1; |
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#endif |
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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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.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", .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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{ |
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.procname = "sched_time_avg", .data = &sysctl_sched_time_avg, .maxlen = sizeof(unsigned int), .mode = 0644, |
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.proc_handler = proc_dointvec, |
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}, { |
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.procname = "sched_shares_window", .data = &sysctl_sched_shares_window, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec, }, { |
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.procname = "timer_migration", .data = &sysctl_timer_migration, .maxlen = sizeof(unsigned int), .mode = 0644, |
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.proc_handler = proc_dointvec_minmax, |
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.extra1 = &zero, .extra2 = &one, |
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}, |
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#endif |
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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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#ifdef CONFIG_SCHED_AUTOGROUP { .procname = "sched_autogroup_enabled", .data = &sysctl_sched_autogroup_enabled, .maxlen = sizeof(unsigned int), .mode = 0644, |
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.proc_handler = proc_dointvec_minmax, |
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.extra1 = &zero, .extra2 = &one, }, #endif |
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#ifdef CONFIG_CFS_BANDWIDTH { .procname = "sched_cfs_bandwidth_slice_us", .data = &sysctl_sched_cfs_bandwidth_slice, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &one, }, #endif |
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#ifdef CONFIG_PROVE_LOCKING { |
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.procname = "prove_locking", .data = &prove_locking, .maxlen = sizeof(int), .mode = 0644, |
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.proc_handler = proc_dointvec, |
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}, #endif #ifdef CONFIG_LOCK_STAT { |
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.procname = "lock_stat", .data = &lock_stat, .maxlen = sizeof(int), .mode = 0644, |
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.proc_handler = proc_dointvec, |
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}, #endif |
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{ |
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.procname = "panic", .data = &panic_timeout, .maxlen = sizeof(int), .mode = 0644, |
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.proc_handler = proc_dointvec, |
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}, { |
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.procname = "core_uses_pid", .data = &core_uses_pid, .maxlen = sizeof(int), .mode = 0644, |
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.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
402 403 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
404 405 |
.procname = "core_pattern", .data = core_pattern, |
71ce92f3f make sysctl/kerne... |
406 |
.maxlen = CORENAME_MAX_SIZE, |
1da177e4c Linux-2.6.12-rc2 |
407 |
.mode = 0644, |
6d4561110 sysctl: Drop & in... |
408 |
.proc_handler = proc_dostring, |
1da177e4c Linux-2.6.12-rc2 |
409 |
}, |
a293980c2 exec: let do_core... |
410 |
{ |
a293980c2 exec: let do_core... |
411 412 413 414 |
.procname = "core_pipe_limit", .data = &core_pipe_limit, .maxlen = sizeof(unsigned int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
415 |
.proc_handler = proc_dointvec, |
a293980c2 exec: let do_core... |
416 |
}, |
34f5a3989 [PATCH] Add TAINT... |
417 |
#ifdef CONFIG_PROC_SYSCTL |
1da177e4c Linux-2.6.12-rc2 |
418 |
{ |
1da177e4c Linux-2.6.12-rc2 |
419 |
.procname = "tainted", |
25ddbb18a Make the taint fl... |
420 |
.maxlen = sizeof(long), |
34f5a3989 [PATCH] Add TAINT... |
421 |
.mode = 0644, |
6d4561110 sysctl: Drop & in... |
422 |
.proc_handler = proc_taint, |
1da177e4c Linux-2.6.12-rc2 |
423 |
}, |
34f5a3989 [PATCH] Add TAINT... |
424 |
#endif |
9745512ce sched: latencytop... |
425 426 427 428 429 430 |
#ifdef CONFIG_LATENCYTOP { .procname = "latencytop", .data = &latencytop_enabled, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
431 |
.proc_handler = proc_dointvec, |
9745512ce sched: latencytop... |
432 433 |
}, #endif |
1da177e4c Linux-2.6.12-rc2 |
434 435 |
#ifdef CONFIG_BLK_DEV_INITRD { |
1da177e4c Linux-2.6.12-rc2 |
436 437 438 439 |
.procname = "real-root-dev", .data = &real_root_dev, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
440 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
441 442 |
}, #endif |
45807a1df vdso: print fatal... |
443 |
{ |
45807a1df vdso: print fatal... |
444 445 446 447 |
.procname = "print-fatal-signals", .data = &print_fatal_signals, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
448 |
.proc_handler = proc_dointvec, |
45807a1df vdso: print fatal... |
449 |
}, |
72c57ed50 sysctl: Use CONFI... |
450 |
#ifdef CONFIG_SPARC |
1da177e4c Linux-2.6.12-rc2 |
451 |
{ |
1da177e4c Linux-2.6.12-rc2 |
452 453 454 455 |
.procname = "reboot-cmd", .data = reboot_command, .maxlen = 256, .mode = 0644, |
6d4561110 sysctl: Drop & in... |
456 |
.proc_handler = proc_dostring, |
1da177e4c Linux-2.6.12-rc2 |
457 458 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
459 460 461 462 |
.procname = "stop-a", .data = &stop_a_enabled, .maxlen = sizeof (int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
463 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
464 465 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
466 467 468 469 |
.procname = "scons-poweroff", .data = &scons_pwroff, .maxlen = sizeof (int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
470 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
471 472 |
}, #endif |
0871420fa sparc64: Add tsb-... |
473 474 |
#ifdef CONFIG_SPARC64 { |
0871420fa sparc64: Add tsb-... |
475 476 477 478 |
.procname = "tsb-ratio", .data = &sysctl_tsb_ratio, .maxlen = sizeof (int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
479 |
.proc_handler = proc_dointvec, |
0871420fa sparc64: Add tsb-... |
480 481 |
}, #endif |
1da177e4c Linux-2.6.12-rc2 |
482 483 |
#ifdef __hppa__ { |
1da177e4c Linux-2.6.12-rc2 |
484 485 486 487 |
.procname = "soft-power", .data = &pwrsw_enabled, .maxlen = sizeof (int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
488 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
489 490 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
491 492 493 494 |
.procname = "unaligned-trap", .data = &unaligned_enabled, .maxlen = sizeof (int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
495 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
496 497 498 |
}, #endif { |
1da177e4c Linux-2.6.12-rc2 |
499 500 501 502 |
.procname = "ctrl-alt-del", .data = &C_A_D, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
503 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
504 |
}, |
606576ce8 ftrace: rename FT... |
505 |
#ifdef CONFIG_FUNCTION_TRACER |
b0fc494fa ftrace: add ftrac... |
506 |
{ |
b0fc494fa ftrace: add ftrac... |
507 508 509 510 |
.procname = "ftrace_enabled", .data = &ftrace_enabled, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
511 |
.proc_handler = ftrace_enable_sysctl, |
b0fc494fa ftrace: add ftrac... |
512 513 |
}, #endif |
f38f1d2aa trace: add a way ... |
514 515 |
#ifdef CONFIG_STACK_TRACER { |
f38f1d2aa trace: add a way ... |
516 517 518 519 |
.procname = "stack_tracer_enabled", .data = &stack_tracer_enabled, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
520 |
.proc_handler = stack_trace_sysctl, |
f38f1d2aa trace: add a way ... |
521 522 |
}, #endif |
944ac4259 ftrace: ftrace du... |
523 524 |
#ifdef CONFIG_TRACING { |
3299b4dd1 ftrace: sysctl typo |
525 |
.procname = "ftrace_dump_on_oops", |
944ac4259 ftrace: ftrace du... |
526 527 528 |
.data = &ftrace_dump_on_oops, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
529 |
.proc_handler = proc_dointvec, |
944ac4259 ftrace: ftrace du... |
530 531 |
}, #endif |
a1ef5adb4 remove CONFIG_KMO... |
532 |
#ifdef CONFIG_MODULES |
1da177e4c Linux-2.6.12-rc2 |
533 |
{ |
1da177e4c Linux-2.6.12-rc2 |
534 535 536 537 |
.procname = "modprobe", .data = &modprobe_path, .maxlen = KMOD_PATH_LEN, .mode = 0644, |
6d4561110 sysctl: Drop & in... |
538 |
.proc_handler = proc_dostring, |
1da177e4c Linux-2.6.12-rc2 |
539 |
}, |
3d43321b7 modules: sysctl t... |
540 |
{ |
3d43321b7 modules: sysctl t... |
541 542 543 544 545 |
.procname = "modules_disabled", .data = &modules_disabled, .maxlen = sizeof(int), .mode = 0644, /* only handle a transition from default "0" to "1" */ |
6d4561110 sysctl: Drop & in... |
546 |
.proc_handler = proc_dointvec_minmax, |
3d43321b7 modules: sysctl t... |
547 548 549 |
.extra1 = &one, .extra2 = &one, }, |
1da177e4c Linux-2.6.12-rc2 |
550 |
#endif |
94f17cd78 hotplug: Support ... |
551 |
#ifdef CONFIG_HOTPLUG |
1da177e4c Linux-2.6.12-rc2 |
552 |
{ |
1da177e4c Linux-2.6.12-rc2 |
553 |
.procname = "hotplug", |
312c004d3 [PATCH] driver co... |
554 555 |
.data = &uevent_helper, .maxlen = UEVENT_HELPER_PATH_LEN, |
1da177e4c Linux-2.6.12-rc2 |
556 |
.mode = 0644, |
6d4561110 sysctl: Drop & in... |
557 |
.proc_handler = proc_dostring, |
1da177e4c Linux-2.6.12-rc2 |
558 559 560 561 |
}, #endif #ifdef CONFIG_CHR_DEV_SG { |
1da177e4c Linux-2.6.12-rc2 |
562 563 564 565 |
.procname = "sg-big-buff", .data = &sg_big_buff, .maxlen = sizeof (int), .mode = 0444, |
6d4561110 sysctl: Drop & in... |
566 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
567 568 569 570 |
}, #endif #ifdef CONFIG_BSD_PROCESS_ACCT { |
1da177e4c Linux-2.6.12-rc2 |
571 572 573 574 |
.procname = "acct", .data = &acct_parm, .maxlen = 3*sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
575 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
576 577 |
}, #endif |
1da177e4c Linux-2.6.12-rc2 |
578 579 |
#ifdef CONFIG_MAGIC_SYSRQ { |
1da177e4c Linux-2.6.12-rc2 |
580 |
.procname = "sysrq", |
5d6f647fc [PATCH] debug: ad... |
581 |
.data = &__sysrq_enabled, |
1da177e4c Linux-2.6.12-rc2 |
582 583 |
.maxlen = sizeof (int), .mode = 0644, |
97f5f0cd8 Input: implement ... |
584 |
.proc_handler = sysrq_sysctl_handler, |
1da177e4c Linux-2.6.12-rc2 |
585 586 |
}, #endif |
d6f8ff738 [PATCH] cad_pid s... |
587 |
#ifdef CONFIG_PROC_SYSCTL |
1da177e4c Linux-2.6.12-rc2 |
588 |
{ |
1da177e4c Linux-2.6.12-rc2 |
589 |
.procname = "cad_pid", |
9ec52099e [PATCH] replace c... |
590 |
.data = NULL, |
1da177e4c Linux-2.6.12-rc2 |
591 592 |
.maxlen = sizeof (int), .mode = 0600, |
6d4561110 sysctl: Drop & in... |
593 |
.proc_handler = proc_do_cad_pid, |
1da177e4c Linux-2.6.12-rc2 |
594 |
}, |
d6f8ff738 [PATCH] cad_pid s... |
595 |
#endif |
1da177e4c Linux-2.6.12-rc2 |
596 |
{ |
1da177e4c Linux-2.6.12-rc2 |
597 598 599 600 |
.procname = "threads-max", .data = &max_threads, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
601 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
602 603 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
604 605 606 607 |
.procname = "random", .mode = 0555, .child = random_table, }, |
1da177e4c Linux-2.6.12-rc2 |
608 |
{ |
17f60a7da capabilites: allo... |
609 610 611 612 613 |
.procname = "usermodehelper", .mode = 0555, .child = usermodehelper_table, }, { |
1da177e4c Linux-2.6.12-rc2 |
614 615 616 617 |
.procname = "overflowuid", .data = &overflowuid, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
618 |
.proc_handler = proc_dointvec_minmax, |
1da177e4c Linux-2.6.12-rc2 |
619 620 621 622 |
.extra1 = &minolduid, .extra2 = &maxolduid, }, { |
1da177e4c Linux-2.6.12-rc2 |
623 624 625 626 |
.procname = "overflowgid", .data = &overflowgid, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
627 |
.proc_handler = proc_dointvec_minmax, |
1da177e4c Linux-2.6.12-rc2 |
628 629 630 |
.extra1 = &minolduid, .extra2 = &maxolduid, }, |
347a8dc3b [PATCH] s390: cle... |
631 |
#ifdef CONFIG_S390 |
1da177e4c Linux-2.6.12-rc2 |
632 633 |
#ifdef CONFIG_MATHEMU { |
1da177e4c Linux-2.6.12-rc2 |
634 635 636 637 |
.procname = "ieee_emulation_warnings", .data = &sysctl_ieee_emulation_warnings, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
638 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
639 640 |
}, #endif |
1da177e4c Linux-2.6.12-rc2 |
641 |
{ |
1da177e4c Linux-2.6.12-rc2 |
642 |
.procname = "userprocess_debug", |
ab3c68ee5 [S390] debug: ena... |
643 |
.data = &show_unhandled_signals, |
1da177e4c Linux-2.6.12-rc2 |
644 645 |
.maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
646 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
647 648 649 |
}, #endif { |
1da177e4c Linux-2.6.12-rc2 |
650 651 652 653 |
.procname = "pid_max", .data = &pid_max, .maxlen = sizeof (int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
654 |
.proc_handler = proc_dointvec_minmax, |
1da177e4c Linux-2.6.12-rc2 |
655 656 657 658 |
.extra1 = &pid_max_min, .extra2 = &pid_max_max, }, { |
1da177e4c Linux-2.6.12-rc2 |
659 660 661 662 |
.procname = "panic_on_oops", .data = &panic_on_oops, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
663 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
664 |
}, |
7ef3d2fd1 printk_ratelimit(... |
665 666 |
#if defined CONFIG_PRINTK { |
7ef3d2fd1 printk_ratelimit(... |
667 668 669 670 |
.procname = "printk", .data = &console_loglevel, .maxlen = 4*sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
671 |
.proc_handler = proc_dointvec, |
7ef3d2fd1 printk_ratelimit(... |
672 |
}, |
1da177e4c Linux-2.6.12-rc2 |
673 |
{ |
1da177e4c Linux-2.6.12-rc2 |
674 |
.procname = "printk_ratelimit", |
717115e1a printk ratelimiti... |
675 |
.data = &printk_ratelimit_state.interval, |
1da177e4c Linux-2.6.12-rc2 |
676 677 |
.maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
678 |
.proc_handler = proc_dointvec_jiffies, |
1da177e4c Linux-2.6.12-rc2 |
679 680 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
681 |
.procname = "printk_ratelimit_burst", |
717115e1a printk ratelimiti... |
682 |
.data = &printk_ratelimit_state.burst, |
1da177e4c Linux-2.6.12-rc2 |
683 684 |
.maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
685 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
686 |
}, |
af91322ef printk: add print... |
687 |
{ |
af91322ef printk: add print... |
688 689 690 691 |
.procname = "printk_delay", .data = &printk_delay_msec, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
692 |
.proc_handler = proc_dointvec_minmax, |
af91322ef printk: add print... |
693 694 695 |
.extra1 = &zero, .extra2 = &ten_thousand, }, |
1da177e4c Linux-2.6.12-rc2 |
696 |
{ |
eaf06b241 Restrict unprivil... |
697 698 699 700 701 702 703 704 |
.procname = "dmesg_restrict", .data = &dmesg_restrict, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &zero, .extra2 = &one, }, |
455cd5ab3 kptr_restrict for... |
705 706 707 708 709 |
{ .procname = "kptr_restrict", .data = &kptr_restrict, .maxlen = sizeof(int), .mode = 0644, |
bfdc0b497 sysctl: restrict ... |
710 |
.proc_handler = proc_dmesg_restrict, |
455cd5ab3 kptr_restrict for... |
711 712 713 |
.extra1 = &zero, .extra2 = &two, }, |
df6e61d4c kernel/sysctl.c: ... |
714 |
#endif |
eaf06b241 Restrict unprivil... |
715 |
{ |
1da177e4c Linux-2.6.12-rc2 |
716 717 718 719 |
.procname = "ngroups_max", .data = &ngroups_max, .maxlen = sizeof (int), .mode = 0444, |
6d4561110 sysctl: Drop & in... |
720 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
721 |
}, |
73efc0394 kernel/sysctl.c: ... |
722 723 724 725 726 727 728 |
{ .procname = "cap_last_cap", .data = (void *)&cap_last_cap, .maxlen = sizeof(int), .mode = 0444, .proc_handler = proc_dointvec, }, |
58687acba lockup_detector: ... |
729 |
#if defined(CONFIG_LOCKUP_DETECTOR) |
504d7cf10 nmi_watchdog: Com... |
730 |
{ |
58687acba lockup_detector: ... |
731 732 |
.procname = "watchdog", .data = &watchdog_enabled, |
504d7cf10 nmi_watchdog: Com... |
733 734 |
.maxlen = sizeof (int), .mode = 0644, |
586692a5a watchdog: Disable... |
735 736 737 |
.proc_handler = proc_dowatchdog, .extra1 = &zero, .extra2 = &one, |
58687acba lockup_detector: ... |
738 739 740 |
}, { .procname = "watchdog_thresh", |
586692a5a watchdog: Disable... |
741 |
.data = &watchdog_thresh, |
58687acba lockup_detector: ... |
742 743 |
.maxlen = sizeof(int), .mode = 0644, |
586692a5a watchdog: Disable... |
744 |
.proc_handler = proc_dowatchdog, |
58687acba lockup_detector: ... |
745 746 |
.extra1 = &neg_one, .extra2 = &sixty, |
504d7cf10 nmi_watchdog: Com... |
747 |
}, |
2508ce184 lockup_detector: ... |
748 749 750 751 752 753 754 755 756 |
{ .procname = "softlockup_panic", .data = &softlockup_panic, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &zero, .extra2 = &one, }, |
5dc305587 x86, NMI: Add bac... |
757 758 759 760 761 |
{ .procname = "nmi_watchdog", .data = &watchdog_enabled, .maxlen = sizeof (int), .mode = 0644, |
586692a5a watchdog: Disable... |
762 763 764 |
.proc_handler = proc_dowatchdog, .extra1 = &zero, .extra2 = &one, |
5dc305587 x86, NMI: Add bac... |
765 766 767 768 769 770 771 772 773 774 |
}, #endif #if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86) { .procname = "unknown_nmi_panic", .data = &unknown_nmi_panic, .maxlen = sizeof (int), .mode = 0644, .proc_handler = proc_dointvec, }, |
504d7cf10 nmi_watchdog: Com... |
775 |
#endif |
1da177e4c Linux-2.6.12-rc2 |
776 777 |
#if defined(CONFIG_X86) { |
8da5adda9 [PATCH] x86: Allo... |
778 779 780 781 |
.procname = "panic_on_unrecovered_nmi", .data = &panic_on_unrecovered_nmi, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
782 |
.proc_handler = proc_dointvec, |
8da5adda9 [PATCH] x86: Allo... |
783 784 |
}, { |
5211a242d x86: Add sysctl t... |
785 786 787 788 |
.procname = "panic_on_io_nmi", .data = &panic_on_io_nmi, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
789 |
.proc_handler = proc_dointvec, |
5211a242d x86: Add sysctl t... |
790 |
}, |
55af77969 x86: Panic on det... |
791 792 793 794 795 796 797 798 799 |
#ifdef CONFIG_DEBUG_STACKOVERFLOW { .procname = "panic_on_stackoverflow", .data = &sysctl_panic_on_stackoverflow, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec, }, #endif |
5211a242d x86: Add sysctl t... |
800 |
{ |
1da177e4c Linux-2.6.12-rc2 |
801 802 803 804 |
.procname = "bootloader_type", .data = &bootloader_type, .maxlen = sizeof (int), .mode = 0444, |
6d4561110 sysctl: Drop & in... |
805 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
806 |
}, |
0741f4d20 [PATCH] x86: add ... |
807 |
{ |
5031296c5 x86: add extensio... |
808 809 810 811 |
.procname = "bootloader_version", .data = &bootloader_version, .maxlen = sizeof (int), .mode = 0444, |
6d4561110 sysctl: Drop & in... |
812 |
.proc_handler = proc_dointvec, |
5031296c5 x86: add extensio... |
813 814 |
}, { |
0741f4d20 [PATCH] x86: add ... |
815 816 817 818 |
.procname = "kstack_depth_to_print", .data = &kstack_depth_to_print, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
819 |
.proc_handler = proc_dointvec, |
0741f4d20 [PATCH] x86: add ... |
820 |
}, |
6e7c40259 x86: various chan... |
821 |
{ |
6e7c40259 x86: various chan... |
822 823 824 825 |
.procname = "io_delay_type", .data = &io_delay_type, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
826 |
.proc_handler = proc_dointvec, |
6e7c40259 x86: various chan... |
827 |
}, |
1da177e4c Linux-2.6.12-rc2 |
828 |
#endif |
7a9166e3b [PATCH] Fix undef... |
829 |
#if defined(CONFIG_MMU) |
1da177e4c Linux-2.6.12-rc2 |
830 |
{ |
1da177e4c Linux-2.6.12-rc2 |
831 832 833 834 |
.procname = "randomize_va_space", .data = &randomize_va_space, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
835 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
836 |
}, |
7a9166e3b [PATCH] Fix undef... |
837 |
#endif |
0152fb376 [PATCH] s390: spi... |
838 |
#if defined(CONFIG_S390) && defined(CONFIG_SMP) |
951f22d5b [PATCH] s390: spi... |
839 |
{ |
951f22d5b [PATCH] s390: spi... |
840 841 842 843 |
.procname = "spin_retry", .data = &spin_retry, .maxlen = sizeof (int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
844 |
.proc_handler = proc_dointvec, |
951f22d5b [PATCH] s390: spi... |
845 846 |
}, #endif |
673d5b43d ACPI: restore CON... |
847 |
#if defined(CONFIG_ACPI_SLEEP) && defined(CONFIG_X86) |
c255d844d [PATCH] suspend-t... |
848 |
{ |
c255d844d [PATCH] suspend-t... |
849 |
.procname = "acpi_video_flags", |
77afcf78a PM: Integrate bee... |
850 |
.data = &acpi_realmode_flags, |
c255d844d [PATCH] suspend-t... |
851 852 |
.maxlen = sizeof (unsigned long), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
853 |
.proc_handler = proc_doulongvec_minmax, |
c255d844d [PATCH] suspend-t... |
854 855 |
}, #endif |
d2b176ed8 [IA64] sysctl opt... |
856 857 |
#ifdef CONFIG_IA64 { |
d2b176ed8 [IA64] sysctl opt... |
858 859 860 861 |
.procname = "ignore-unaligned-usertrap", .data = &no_unaligned_warning, .maxlen = sizeof (int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
862 |
.proc_handler = proc_dointvec, |
d2b176ed8 [IA64] sysctl opt... |
863 |
}, |
88fc241f5 [IA64] dump stack... |
864 |
{ |
88fc241f5 [IA64] dump stack... |
865 866 867 868 |
.procname = "unaligned-dump-stack", .data = &unaligned_dump_stack, .maxlen = sizeof (int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
869 |
.proc_handler = proc_dointvec, |
88fc241f5 [IA64] dump stack... |
870 |
}, |
d2b176ed8 [IA64] sysctl opt... |
871 |
#endif |
e162b39a3 softlockup: decou... |
872 873 |
#ifdef CONFIG_DETECT_HUNG_TASK { |
e162b39a3 softlockup: decou... |
874 875 876 877 |
.procname = "hung_task_panic", .data = &sysctl_hung_task_panic, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
878 |
.proc_handler = proc_dointvec_minmax, |
e162b39a3 softlockup: decou... |
879 880 881 |
.extra1 = &zero, .extra2 = &one, }, |
82a1fcb90 softlockup: autom... |
882 |
{ |
82a1fcb90 softlockup: autom... |
883 884 |
.procname = "hung_task_check_count", .data = &sysctl_hung_task_check_count, |
90739081e softlockup: fix s... |
885 |
.maxlen = sizeof(unsigned long), |
82a1fcb90 softlockup: autom... |
886 |
.mode = 0644, |
6d4561110 sysctl: Drop & in... |
887 |
.proc_handler = proc_doulongvec_minmax, |
82a1fcb90 softlockup: autom... |
888 889 |
}, { |
82a1fcb90 softlockup: autom... |
890 891 |
.procname = "hung_task_timeout_secs", .data = &sysctl_hung_task_timeout_secs, |
90739081e softlockup: fix s... |
892 |
.maxlen = sizeof(unsigned long), |
82a1fcb90 softlockup: autom... |
893 |
.mode = 0644, |
6d4561110 sysctl: Drop & in... |
894 |
.proc_handler = proc_dohung_task_timeout_secs, |
82a1fcb90 softlockup: autom... |
895 896 |
}, { |
82a1fcb90 softlockup: autom... |
897 898 |
.procname = "hung_task_warnings", .data = &sysctl_hung_task_warnings, |
90739081e softlockup: fix s... |
899 |
.maxlen = sizeof(unsigned long), |
82a1fcb90 softlockup: autom... |
900 |
.mode = 0644, |
6d4561110 sysctl: Drop & in... |
901 |
.proc_handler = proc_doulongvec_minmax, |
82a1fcb90 softlockup: autom... |
902 |
}, |
c4f3b63fe softlockup: add a... |
903 |
#endif |
bebfa1013 [PATCH] x86_64: A... |
904 905 |
#ifdef CONFIG_COMPAT { |
bebfa1013 [PATCH] x86_64: A... |
906 907 908 909 |
.procname = "compat-log", .data = &compat_log, .maxlen = sizeof (int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
910 |
.proc_handler = proc_dointvec, |
bebfa1013 [PATCH] x86_64: A... |
911 912 |
}, #endif |
23f78d4a0 [PATCH] pi-futex:... |
913 914 |
#ifdef CONFIG_RT_MUTEXES { |
23f78d4a0 [PATCH] pi-futex:... |
915 916 917 918 |
.procname = "max_lock_depth", .data = &max_lock_depth, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
919 |
.proc_handler = proc_dointvec, |
23f78d4a0 [PATCH] pi-futex:... |
920 921 |
}, #endif |
10a0a8d4e Add common orderl... |
922 |
{ |
10a0a8d4e Add common orderl... |
923 924 925 926 |
.procname = "poweroff_cmd", .data = &poweroff_cmd, .maxlen = POWEROFF_CMD_PATH_LEN, .mode = 0644, |
6d4561110 sysctl: Drop & in... |
927 |
.proc_handler = proc_dostring, |
10a0a8d4e Add common orderl... |
928 |
}, |
0b77f5bfb keys: make the ke... |
929 930 |
#ifdef CONFIG_KEYS { |
0b77f5bfb keys: make the ke... |
931 932 933 934 935 |
.procname = "keys", .mode = 0555, .child = key_sysctls, }, #endif |
31a72bce0 rcu: make rcutort... |
936 937 |
#ifdef CONFIG_RCU_TORTURE_TEST { |
31a72bce0 rcu: make rcutort... |
938 939 940 941 |
.procname = "rcutorture_runnable", .data = &rcutorture_runnable, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
942 |
.proc_handler = proc_dointvec, |
31a72bce0 rcu: make rcutort... |
943 944 |
}, #endif |
cdd6c482c perf: Do the big ... |
945 |
#ifdef CONFIG_PERF_EVENTS |
aa4a22187 perf: Comment /pr... |
946 947 948 949 950 951 |
/* * 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 perf_counter: sys... |
952 |
{ |
cdd6c482c perf: Do the big ... |
953 954 955 |
.procname = "perf_event_paranoid", .data = &sysctl_perf_event_paranoid, .maxlen = sizeof(sysctl_perf_event_paranoid), |
1ccd15497 perf_counter: sys... |
956 |
.mode = 0644, |
6d4561110 sysctl: Drop & in... |
957 |
.proc_handler = proc_dointvec, |
1ccd15497 perf_counter: sys... |
958 |
}, |
c5078f78b perf_counter: pro... |
959 |
{ |
cdd6c482c perf: Do the big ... |
960 961 962 |
.procname = "perf_event_mlock_kb", .data = &sysctl_perf_event_mlock, .maxlen = sizeof(sysctl_perf_event_mlock), |
c5078f78b perf_counter: pro... |
963 |
.mode = 0644, |
6d4561110 sysctl: Drop & in... |
964 |
.proc_handler = proc_dointvec, |
c5078f78b perf_counter: pro... |
965 |
}, |
a78ac3258 perf_counter: Gen... |
966 |
{ |
cdd6c482c perf: Do the big ... |
967 968 969 |
.procname = "perf_event_max_sample_rate", .data = &sysctl_perf_event_sample_rate, .maxlen = sizeof(sysctl_perf_event_sample_rate), |
a78ac3258 perf_counter: Gen... |
970 |
.mode = 0644, |
163ec4354 perf: Optimize th... |
971 |
.proc_handler = perf_proc_update_handler, |
a78ac3258 perf_counter: Gen... |
972 |
}, |
1ccd15497 perf_counter: sys... |
973 |
#endif |
dfec072ec kmemcheck: add th... |
974 975 |
#ifdef CONFIG_KMEMCHECK { |
dfec072ec kmemcheck: add th... |
976 977 978 979 |
.procname = "kmemcheck", .data = &kmemcheck_enabled, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
980 |
.proc_handler = proc_dointvec, |
dfec072ec kmemcheck: add th... |
981 982 |
}, #endif |
cb684b5bc block: fix linkag... |
983 |
#ifdef CONFIG_BLOCK |
5e605b64a block: add blk-io... |
984 |
{ |
5e605b64a block: add blk-io... |
985 986 987 988 |
.procname = "blk_iopoll", .data = &blk_iopoll_enabled, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
989 |
.proc_handler = proc_dointvec, |
5e605b64a block: add blk-io... |
990 |
}, |
cb684b5bc block: fix linkag... |
991 |
#endif |
6fce56ec9 sysctl: Remove re... |
992 |
{ } |
1da177e4c Linux-2.6.12-rc2 |
993 |
}; |
d8217f076 sysctl core: Stop... |
994 |
static struct ctl_table vm_table[] = { |
1da177e4c Linux-2.6.12-rc2 |
995 |
{ |
1da177e4c Linux-2.6.12-rc2 |
996 997 998 999 |
.procname = "overcommit_memory", .data = &sysctl_overcommit_memory, .maxlen = sizeof(sysctl_overcommit_memory), .mode = 0644, |
cb16e95fa sysctl: add some ... |
1000 1001 1002 |
.proc_handler = proc_dointvec_minmax, .extra1 = &zero, .extra2 = &two, |
1da177e4c Linux-2.6.12-rc2 |
1003 1004 |
}, { |
fadd8fbd1 [PATCH] support f... |
1005 1006 1007 1008 |
.procname = "panic_on_oom", .data = &sysctl_panic_on_oom, .maxlen = sizeof(sysctl_panic_on_oom), .mode = 0644, |
cb16e95fa sysctl: add some ... |
1009 1010 1011 |
.proc_handler = proc_dointvec_minmax, .extra1 = &zero, .extra2 = &two, |
fadd8fbd1 [PATCH] support f... |
1012 1013 |
}, { |
fe071d7e8 oom: add oom_kill... |
1014 1015 1016 1017 |
.procname = "oom_kill_allocating_task", .data = &sysctl_oom_kill_allocating_task, .maxlen = sizeof(sysctl_oom_kill_allocating_task), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1018 |
.proc_handler = proc_dointvec, |
fe071d7e8 oom: add oom_kill... |
1019 1020 |
}, { |
fef1bdd68 oom: add sysctl t... |
1021 1022 1023 1024 |
.procname = "oom_dump_tasks", .data = &sysctl_oom_dump_tasks, .maxlen = sizeof(sysctl_oom_dump_tasks), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1025 |
.proc_handler = proc_dointvec, |
fef1bdd68 oom: add sysctl t... |
1026 1027 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1028 1029 1030 1031 |
.procname = "overcommit_ratio", .data = &sysctl_overcommit_ratio, .maxlen = sizeof(sysctl_overcommit_ratio), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1032 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
1033 1034 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1035 1036 1037 1038 |
.procname = "page-cluster", .data = &page_cluster, .maxlen = sizeof(int), .mode = 0644, |
cb16e95fa sysctl: add some ... |
1039 1040 |
.proc_handler = proc_dointvec_minmax, .extra1 = &zero, |
1da177e4c Linux-2.6.12-rc2 |
1041 1042 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1043 1044 1045 1046 |
.procname = "dirty_background_ratio", .data = &dirty_background_ratio, .maxlen = sizeof(dirty_background_ratio), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1047 |
.proc_handler = dirty_background_ratio_handler, |
1da177e4c Linux-2.6.12-rc2 |
1048 1049 1050 1051 |
.extra1 = &zero, .extra2 = &one_hundred, }, { |
2da02997e mm: add dirty_bac... |
1052 1053 1054 1055 |
.procname = "dirty_background_bytes", .data = &dirty_background_bytes, .maxlen = sizeof(dirty_background_bytes), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1056 |
.proc_handler = dirty_background_bytes_handler, |
fc3501d41 mm: fix dirty_byt... |
1057 |
.extra1 = &one_ul, |
2da02997e mm: add dirty_bac... |
1058 1059 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1060 1061 1062 1063 |
.procname = "dirty_ratio", .data = &vm_dirty_ratio, .maxlen = sizeof(vm_dirty_ratio), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1064 |
.proc_handler = dirty_ratio_handler, |
1da177e4c Linux-2.6.12-rc2 |
1065 1066 1067 1068 |
.extra1 = &zero, .extra2 = &one_hundred, }, { |
2da02997e mm: add dirty_bac... |
1069 1070 1071 1072 |
.procname = "dirty_bytes", .data = &vm_dirty_bytes, .maxlen = sizeof(vm_dirty_bytes), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1073 |
.proc_handler = dirty_bytes_handler, |
9e4a5bda8 mm: prevent divid... |
1074 |
.extra1 = &dirty_bytes_min, |
2da02997e mm: add dirty_bac... |
1075 1076 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1077 |
.procname = "dirty_writeback_centisecs", |
f6ef94381 [PATCH] Represent... |
1078 1079 |
.data = &dirty_writeback_interval, .maxlen = sizeof(dirty_writeback_interval), |
1da177e4c Linux-2.6.12-rc2 |
1080 |
.mode = 0644, |
6d4561110 sysctl: Drop & in... |
1081 |
.proc_handler = dirty_writeback_centisecs_handler, |
1da177e4c Linux-2.6.12-rc2 |
1082 1083 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1084 |
.procname = "dirty_expire_centisecs", |
f6ef94381 [PATCH] Represent... |
1085 1086 |
.data = &dirty_expire_interval, .maxlen = sizeof(dirty_expire_interval), |
1da177e4c Linux-2.6.12-rc2 |
1087 |
.mode = 0644, |
cb16e95fa sysctl: add some ... |
1088 1089 |
.proc_handler = proc_dointvec_minmax, .extra1 = &zero, |
1da177e4c Linux-2.6.12-rc2 |
1090 1091 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1092 1093 1094 1095 |
.procname = "nr_pdflush_threads", .data = &nr_pdflush_threads, .maxlen = sizeof nr_pdflush_threads, .mode = 0444 /* read-only*/, |
6d4561110 sysctl: Drop & in... |
1096 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
1097 1098 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1099 1100 1101 1102 |
.procname = "swappiness", .data = &vm_swappiness, .maxlen = sizeof(vm_swappiness), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1103 |
.proc_handler = proc_dointvec_minmax, |
1da177e4c Linux-2.6.12-rc2 |
1104 1105 1106 1107 |
.extra1 = &zero, .extra2 = &one_hundred, }, #ifdef CONFIG_HUGETLB_PAGE |
06808b082 hugetlb: derive h... |
1108 |
{ |
1da177e4c Linux-2.6.12-rc2 |
1109 |
.procname = "nr_hugepages", |
e5ff21594 hugetlb: multiple... |
1110 |
.data = NULL, |
1da177e4c Linux-2.6.12-rc2 |
1111 1112 |
.maxlen = sizeof(unsigned long), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1113 |
.proc_handler = hugetlb_sysctl_handler, |
1da177e4c Linux-2.6.12-rc2 |
1114 1115 |
.extra1 = (void *)&hugetlb_zero, .extra2 = (void *)&hugetlb_infinity, |
06808b082 hugetlb: derive h... |
1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 |
}, #ifdef CONFIG_NUMA { .procname = "nr_hugepages_mempolicy", .data = NULL, .maxlen = sizeof(unsigned long), .mode = 0644, .proc_handler = &hugetlb_mempolicy_sysctl_handler, .extra1 = (void *)&hugetlb_zero, .extra2 = (void *)&hugetlb_infinity, }, #endif |
1da177e4c Linux-2.6.12-rc2 |
1128 |
{ |
1da177e4c Linux-2.6.12-rc2 |
1129 1130 1131 1132 |
.procname = "hugetlb_shm_group", .data = &sysctl_hugetlb_shm_group, .maxlen = sizeof(gid_t), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1133 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
1134 |
}, |
396faf030 Allow huge page a... |
1135 |
{ |
396faf030 Allow huge page a... |
1136 1137 1138 1139 |
.procname = "hugepages_treat_as_movable", .data = &hugepages_treat_as_movable, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1140 |
.proc_handler = hugetlb_treat_movable_handler, |
396faf030 Allow huge page a... |
1141 |
}, |
54f9f80d6 hugetlb: Add huge... |
1142 |
{ |
d1c3fb1f8 hugetlb: introduc... |
1143 |
.procname = "nr_overcommit_hugepages", |
e5ff21594 hugetlb: multiple... |
1144 1145 |
.data = NULL, .maxlen = sizeof(unsigned long), |
d1c3fb1f8 hugetlb: introduc... |
1146 |
.mode = 0644, |
6d4561110 sysctl: Drop & in... |
1147 |
.proc_handler = hugetlb_overcommit_handler, |
e5ff21594 hugetlb: multiple... |
1148 1149 |
.extra1 = (void *)&hugetlb_zero, .extra2 = (void *)&hugetlb_infinity, |
d1c3fb1f8 hugetlb: introduc... |
1150 |
}, |
1da177e4c Linux-2.6.12-rc2 |
1151 1152 |
#endif { |
1da177e4c Linux-2.6.12-rc2 |
1153 1154 1155 1156 |
.procname = "lowmem_reserve_ratio", .data = &sysctl_lowmem_reserve_ratio, .maxlen = sizeof(sysctl_lowmem_reserve_ratio), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1157 |
.proc_handler = lowmem_reserve_ratio_sysctl_handler, |
1da177e4c Linux-2.6.12-rc2 |
1158 1159 |
}, { |
9d0243bca [PATCH] drop-page... |
1160 1161 1162 1163 1164 |
.procname = "drop_caches", .data = &sysctl_drop_caches, .maxlen = sizeof(int), .mode = 0644, .proc_handler = drop_caches_sysctl_handler, |
cb16e95fa sysctl: add some ... |
1165 1166 |
.extra1 = &one, .extra2 = &three, |
9d0243bca [PATCH] drop-page... |
1167 |
}, |
76ab0f530 mm: compaction: a... |
1168 1169 1170 1171 1172 1173 1174 1175 |
#ifdef CONFIG_COMPACTION { .procname = "compact_memory", .data = &sysctl_compact_memory, .maxlen = sizeof(int), .mode = 0200, .proc_handler = sysctl_compaction_handler, }, |
5e7719058 mm: compaction: a... |
1176 1177 1178 1179 1180 1181 1182 1183 1184 |
{ .procname = "extfrag_threshold", .data = &sysctl_extfrag_threshold, .maxlen = sizeof(int), .mode = 0644, .proc_handler = sysctl_extfrag_handler, .extra1 = &min_extfrag_threshold, .extra2 = &max_extfrag_threshold, }, |
76ab0f530 mm: compaction: a... |
1185 |
#endif /* CONFIG_COMPACTION */ |
9d0243bca [PATCH] drop-page... |
1186 |
{ |
1da177e4c Linux-2.6.12-rc2 |
1187 1188 1189 1190 |
.procname = "min_free_kbytes", .data = &min_free_kbytes, .maxlen = sizeof(min_free_kbytes), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1191 |
.proc_handler = min_free_kbytes_sysctl_handler, |
1da177e4c Linux-2.6.12-rc2 |
1192 1193 |
.extra1 = &zero, }, |
8ad4b1fb8 [PATCH] Make high... |
1194 |
{ |
8ad4b1fb8 [PATCH] Make high... |
1195 1196 1197 1198 |
.procname = "percpu_pagelist_fraction", .data = &percpu_pagelist_fraction, .maxlen = sizeof(percpu_pagelist_fraction), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1199 |
.proc_handler = percpu_pagelist_fraction_sysctl_handler, |
8ad4b1fb8 [PATCH] Make high... |
1200 1201 |
.extra1 = &min_percpu_pagelist_fract, }, |
1da177e4c Linux-2.6.12-rc2 |
1202 1203 |
#ifdef CONFIG_MMU { |
1da177e4c Linux-2.6.12-rc2 |
1204 1205 1206 1207 |
.procname = "max_map_count", .data = &sysctl_max_map_count, .maxlen = sizeof(sysctl_max_map_count), .mode = 0644, |
3e26120cc kernel/sysctl.c: ... |
1208 |
.proc_handler = proc_dointvec_minmax, |
70da2340f 'sysctl_max_map_c... |
1209 |
.extra1 = &zero, |
1da177e4c Linux-2.6.12-rc2 |
1210 |
}, |
dd8632a12 NOMMU: Make mmap ... |
1211 1212 |
#else { |
dd8632a12 NOMMU: Make mmap ... |
1213 1214 1215 1216 |
.procname = "nr_trim_pages", .data = &sysctl_nr_trim_pages, .maxlen = sizeof(sysctl_nr_trim_pages), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1217 |
.proc_handler = proc_dointvec_minmax, |
dd8632a12 NOMMU: Make mmap ... |
1218 1219 |
.extra1 = &zero, }, |
1da177e4c Linux-2.6.12-rc2 |
1220 1221 |
#endif { |
1da177e4c Linux-2.6.12-rc2 |
1222 1223 1224 1225 |
.procname = "laptop_mode", .data = &laptop_mode, .maxlen = sizeof(laptop_mode), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1226 |
.proc_handler = proc_dointvec_jiffies, |
1da177e4c Linux-2.6.12-rc2 |
1227 1228 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1229 1230 1231 1232 |
.procname = "block_dump", .data = &block_dump, .maxlen = sizeof(block_dump), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1233 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
1234 1235 1236 |
.extra1 = &zero, }, { |
1da177e4c Linux-2.6.12-rc2 |
1237 1238 1239 1240 |
.procname = "vfs_cache_pressure", .data = &sysctl_vfs_cache_pressure, .maxlen = sizeof(sysctl_vfs_cache_pressure), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1241 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
1242 1243 1244 1245 |
.extra1 = &zero, }, #ifdef HAVE_ARCH_PICK_MMAP_LAYOUT { |
1da177e4c Linux-2.6.12-rc2 |
1246 1247 1248 1249 |
.procname = "legacy_va_layout", .data = &sysctl_legacy_va_layout, .maxlen = sizeof(sysctl_legacy_va_layout), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1250 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
1251 1252 1253 |
.extra1 = &zero, }, #endif |
1743660b9 [PATCH] Zone recl... |
1254 1255 |
#ifdef CONFIG_NUMA { |
1743660b9 [PATCH] Zone recl... |
1256 1257 1258 1259 |
.procname = "zone_reclaim_mode", .data = &zone_reclaim_mode, .maxlen = sizeof(zone_reclaim_mode), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1260 |
.proc_handler = proc_dointvec, |
c84db23c6 [PATCH] zone_recl... |
1261 |
.extra1 = &zero, |
1743660b9 [PATCH] Zone recl... |
1262 |
}, |
9614634fe [PATCH] ZVC/zone_... |
1263 |
{ |
9614634fe [PATCH] ZVC/zone_... |
1264 1265 1266 1267 |
.procname = "min_unmapped_ratio", .data = &sysctl_min_unmapped_ratio, .maxlen = sizeof(sysctl_min_unmapped_ratio), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1268 |
.proc_handler = sysctl_min_unmapped_ratio_sysctl_handler, |
9614634fe [PATCH] ZVC/zone_... |
1269 1270 1271 |
.extra1 = &zero, .extra2 = &one_hundred, }, |
0ff38490c [PATCH] zone_recl... |
1272 |
{ |
0ff38490c [PATCH] zone_recl... |
1273 1274 1275 1276 |
.procname = "min_slab_ratio", .data = &sysctl_min_slab_ratio, .maxlen = sizeof(sysctl_min_slab_ratio), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1277 |
.proc_handler = sysctl_min_slab_ratio_sysctl_handler, |
0ff38490c [PATCH] zone_recl... |
1278 1279 1280 |
.extra1 = &zero, .extra2 = &one_hundred, }, |
1743660b9 [PATCH] Zone recl... |
1281 |
#endif |
77461ab33 Make vm statistic... |
1282 1283 |
#ifdef CONFIG_SMP { |
77461ab33 Make vm statistic... |
1284 1285 1286 1287 |
.procname = "stat_interval", .data = &sysctl_stat_interval, .maxlen = sizeof(sysctl_stat_interval), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1288 |
.proc_handler = proc_dointvec_jiffies, |
77461ab33 Make vm statistic... |
1289 1290 |
}, #endif |
6e1415467 NOMMU: Optimise a... |
1291 |
#ifdef CONFIG_MMU |
ed0321895 security: Protect... |
1292 |
{ |
ed0321895 security: Protect... |
1293 |
.procname = "mmap_min_addr", |
788084aba Security/SELinux:... |
1294 1295 |
.data = &dac_mmap_min_addr, .maxlen = sizeof(unsigned long), |
ed0321895 security: Protect... |
1296 |
.mode = 0644, |
6d4561110 sysctl: Drop & in... |
1297 |
.proc_handler = mmap_min_addr_handler, |
ed0321895 security: Protect... |
1298 |
}, |
6e1415467 NOMMU: Optimise a... |
1299 |
#endif |
f0c0b2b80 change zonelist o... |
1300 1301 |
#ifdef CONFIG_NUMA { |
f0c0b2b80 change zonelist o... |
1302 1303 1304 1305 |
.procname = "numa_zonelist_order", .data = &numa_zonelist_order, .maxlen = NUMA_ZONELIST_ORDER_LEN, .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1306 |
.proc_handler = numa_zonelist_order_handler, |
f0c0b2b80 change zonelist o... |
1307 1308 |
}, #endif |
2b8232ce5 minimal build fix... |
1309 |
#if (defined(CONFIG_X86_32) && !defined(CONFIG_UML))|| \ |
5c36e6578 sysctl: Support v... |
1310 |
(defined(CONFIG_SUPERH) && defined(CONFIG_VSYSCALL)) |
e6e5494cb [PATCH] vdso: ran... |
1311 |
{ |
e6e5494cb [PATCH] vdso: ran... |
1312 1313 1314 1315 |
.procname = "vdso_enabled", .data = &vdso_enabled, .maxlen = sizeof(vdso_enabled), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1316 |
.proc_handler = proc_dointvec, |
e6e5494cb [PATCH] vdso: ran... |
1317 1318 1319 |
.extra1 = &zero, }, #endif |
195cf453d mm/page-writeback... |
1320 1321 |
#ifdef CONFIG_HIGHMEM { |
195cf453d mm/page-writeback... |
1322 1323 1324 1325 |
.procname = "highmem_is_dirtyable", .data = &vm_highmem_is_dirtyable, .maxlen = sizeof(vm_highmem_is_dirtyable), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1326 |
.proc_handler = proc_dointvec_minmax, |
195cf453d mm/page-writeback... |
1327 1328 1329 1330 |
.extra1 = &zero, .extra2 = &one, }, #endif |
4be6f6bb6 mm: move the scan... |
1331 |
{ |
4be6f6bb6 mm: move the scan... |
1332 1333 1334 1335 |
.procname = "scan_unevictable_pages", .data = &scan_unevictable_pages, .maxlen = sizeof(scan_unevictable_pages), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1336 |
.proc_handler = scan_unevictable_handler, |
4be6f6bb6 mm: move the scan... |
1337 |
}, |
6a46079cf HWPOISON: The hig... |
1338 1339 |
#ifdef CONFIG_MEMORY_FAILURE { |
6a46079cf HWPOISON: The hig... |
1340 1341 1342 1343 |
.procname = "memory_failure_early_kill", .data = &sysctl_memory_failure_early_kill, .maxlen = sizeof(sysctl_memory_failure_early_kill), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1344 |
.proc_handler = proc_dointvec_minmax, |
6a46079cf HWPOISON: The hig... |
1345 1346 1347 1348 |
.extra1 = &zero, .extra2 = &one, }, { |
6a46079cf HWPOISON: The hig... |
1349 1350 1351 1352 |
.procname = "memory_failure_recovery", .data = &sysctl_memory_failure_recovery, .maxlen = sizeof(sysctl_memory_failure_recovery), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1353 |
.proc_handler = proc_dointvec_minmax, |
6a46079cf HWPOISON: The hig... |
1354 1355 1356 1357 |
.extra1 = &zero, .extra2 = &one, }, #endif |
6fce56ec9 sysctl: Remove re... |
1358 |
{ } |
1da177e4c Linux-2.6.12-rc2 |
1359 |
}; |
2abc26fc6 [PATCH] sysctl: c... |
1360 |
#if defined(CONFIG_BINFMT_MISC) || defined(CONFIG_BINFMT_MISC_MODULE) |
d8217f076 sysctl core: Stop... |
1361 |
static struct ctl_table binfmt_misc_table[] = { |
6fce56ec9 sysctl: Remove re... |
1362 |
{ } |
2abc26fc6 [PATCH] sysctl: c... |
1363 1364 |
}; #endif |
d8217f076 sysctl core: Stop... |
1365 |
static struct ctl_table fs_table[] = { |
1da177e4c Linux-2.6.12-rc2 |
1366 |
{ |
1da177e4c Linux-2.6.12-rc2 |
1367 1368 1369 1370 |
.procname = "inode-nr", .data = &inodes_stat, .maxlen = 2*sizeof(int), .mode = 0444, |
cffbc8aa3 fs: Convert nr_in... |
1371 |
.proc_handler = proc_nr_inodes, |
1da177e4c Linux-2.6.12-rc2 |
1372 1373 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1374 1375 1376 1377 |
.procname = "inode-state", .data = &inodes_stat, .maxlen = 7*sizeof(int), .mode = 0444, |
cffbc8aa3 fs: Convert nr_in... |
1378 |
.proc_handler = proc_nr_inodes, |
1da177e4c Linux-2.6.12-rc2 |
1379 1380 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1381 1382 |
.procname = "file-nr", .data = &files_stat, |
518de9b39 fs: allow for mor... |
1383 |
.maxlen = sizeof(files_stat), |
1da177e4c Linux-2.6.12-rc2 |
1384 |
.mode = 0444, |
6d4561110 sysctl: Drop & in... |
1385 |
.proc_handler = proc_nr_files, |
1da177e4c Linux-2.6.12-rc2 |
1386 1387 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1388 1389 |
.procname = "file-max", .data = &files_stat.max_files, |
518de9b39 fs: allow for mor... |
1390 |
.maxlen = sizeof(files_stat.max_files), |
1da177e4c Linux-2.6.12-rc2 |
1391 |
.mode = 0644, |
518de9b39 fs: allow for mor... |
1392 |
.proc_handler = proc_doulongvec_minmax, |
1da177e4c Linux-2.6.12-rc2 |
1393 1394 |
}, { |
9cfe015aa get rid of NR_OPE... |
1395 1396 1397 1398 |
.procname = "nr_open", .data = &sysctl_nr_open, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1399 |
.proc_handler = proc_dointvec_minmax, |
eceea0b3d [PATCH] avoid mul... |
1400 1401 |
.extra1 = &sysctl_nr_open_min, .extra2 = &sysctl_nr_open_max, |
9cfe015aa get rid of NR_OPE... |
1402 1403 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1404 1405 1406 1407 |
.procname = "dentry-state", .data = &dentry_stat, .maxlen = 6*sizeof(int), .mode = 0444, |
312d3ca85 fs: use percpu co... |
1408 |
.proc_handler = proc_nr_dentry, |
1da177e4c Linux-2.6.12-rc2 |
1409 1410 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1411 1412 1413 1414 |
.procname = "overflowuid", .data = &fs_overflowuid, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1415 |
.proc_handler = proc_dointvec_minmax, |
1da177e4c Linux-2.6.12-rc2 |
1416 1417 1418 1419 |
.extra1 = &minolduid, .extra2 = &maxolduid, }, { |
1da177e4c Linux-2.6.12-rc2 |
1420 1421 1422 1423 |
.procname = "overflowgid", .data = &fs_overflowgid, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1424 |
.proc_handler = proc_dointvec_minmax, |
1da177e4c Linux-2.6.12-rc2 |
1425 1426 1427 |
.extra1 = &minolduid, .extra2 = &maxolduid, }, |
bfcd17a6c Configure out fil... |
1428 |
#ifdef CONFIG_FILE_LOCKING |
1da177e4c Linux-2.6.12-rc2 |
1429 |
{ |
1da177e4c Linux-2.6.12-rc2 |
1430 1431 1432 1433 |
.procname = "leases-enable", .data = &leases_enable, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1434 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
1435 |
}, |
bfcd17a6c Configure out fil... |
1436 |
#endif |
1da177e4c Linux-2.6.12-rc2 |
1437 1438 |
#ifdef CONFIG_DNOTIFY { |
1da177e4c Linux-2.6.12-rc2 |
1439 1440 1441 1442 |
.procname = "dir-notify-enable", .data = &dir_notify_enable, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1443 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
1444 1445 1446 |
}, #endif #ifdef CONFIG_MMU |
bfcd17a6c Configure out fil... |
1447 |
#ifdef CONFIG_FILE_LOCKING |
1da177e4c Linux-2.6.12-rc2 |
1448 |
{ |
1da177e4c Linux-2.6.12-rc2 |
1449 1450 1451 1452 |
.procname = "lease-break-time", .data = &lease_break_time, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1453 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
1454 |
}, |
bfcd17a6c Configure out fil... |
1455 |
#endif |
ebf3f09c6 Configure out AIO... |
1456 |
#ifdef CONFIG_AIO |
1da177e4c Linux-2.6.12-rc2 |
1457 |
{ |
1da177e4c Linux-2.6.12-rc2 |
1458 1459 1460 1461 |
.procname = "aio-nr", .data = &aio_nr, .maxlen = sizeof(aio_nr), .mode = 0444, |
6d4561110 sysctl: Drop & in... |
1462 |
.proc_handler = proc_doulongvec_minmax, |
1da177e4c Linux-2.6.12-rc2 |
1463 1464 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1465 1466 1467 1468 |
.procname = "aio-max-nr", .data = &aio_max_nr, .maxlen = sizeof(aio_max_nr), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1469 |
.proc_handler = proc_doulongvec_minmax, |
1da177e4c Linux-2.6.12-rc2 |
1470 |
}, |
ebf3f09c6 Configure out AIO... |
1471 |
#endif /* CONFIG_AIO */ |
2d9048e20 [PATCH] inotify (... |
1472 |
#ifdef CONFIG_INOTIFY_USER |
0399cb08c [PATCH] inotify: ... |
1473 |
{ |
0399cb08c [PATCH] inotify: ... |
1474 1475 1476 1477 1478 |
.procname = "inotify", .mode = 0555, .child = inotify_table, }, #endif |
7ef9964e6 epoll: introduce ... |
1479 1480 1481 1482 1483 1484 1485 |
#ifdef CONFIG_EPOLL { .procname = "epoll", .mode = 0555, .child = epoll_table, }, #endif |
1da177e4c Linux-2.6.12-rc2 |
1486 |
#endif |
d6e711448 [PATCH] setuid co... |
1487 |
{ |
d6e711448 [PATCH] setuid co... |
1488 1489 1490 1491 |
.procname = "suid_dumpable", .data = &suid_dumpable, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1492 |
.proc_handler = proc_dointvec_minmax, |
8e654fba4 sysctl: fix suid_... |
1493 1494 |
.extra1 = &zero, .extra2 = &two, |
d6e711448 [PATCH] setuid co... |
1495 |
}, |
2abc26fc6 [PATCH] sysctl: c... |
1496 1497 |
#if defined(CONFIG_BINFMT_MISC) || defined(CONFIG_BINFMT_MISC_MODULE) { |
2abc26fc6 [PATCH] sysctl: c... |
1498 1499 1500 1501 1502 |
.procname = "binfmt_misc", .mode = 0555, .child = binfmt_misc_table, }, #endif |
b492e95be pipe: set lower a... |
1503 |
{ |
ff9da691c pipe: change /pro... |
1504 1505 |
.procname = "pipe-max-size", .data = &pipe_max_size, |
b492e95be pipe: set lower a... |
1506 1507 |
.maxlen = sizeof(int), .mode = 0644, |
ff9da691c pipe: change /pro... |
1508 1509 |
.proc_handler = &pipe_proc_fn, .extra1 = &pipe_min_size, |
b492e95be pipe: set lower a... |
1510 |
}, |
6fce56ec9 sysctl: Remove re... |
1511 |
{ } |
1da177e4c Linux-2.6.12-rc2 |
1512 |
}; |
d8217f076 sysctl core: Stop... |
1513 |
static struct ctl_table debug_table[] = { |
ab3c68ee5 [S390] debug: ena... |
1514 |
#if defined(CONFIG_X86) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) || \ |
571d76acd arch/tile: suppor... |
1515 |
defined(CONFIG_S390) || defined(CONFIG_TILE) |
abd4f7505 x86: i386-show-un... |
1516 |
{ |
abd4f7505 x86: i386-show-un... |
1517 1518 1519 1520 1521 1522 1523 |
.procname = "exception-trace", .data = &show_unhandled_signals, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec }, #endif |
b2be84df9 kprobes: Jump opt... |
1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 |
#if defined(CONFIG_OPTPROBES) { .procname = "kprobes-optimization", .data = &sysctl_kprobes_optimization, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_kprobes_optimization_handler, .extra1 = &zero, .extra2 = &one, }, #endif |
6fce56ec9 sysctl: Remove re... |
1535 |
{ } |
1da177e4c Linux-2.6.12-rc2 |
1536 |
}; |
d8217f076 sysctl core: Stop... |
1537 |
static struct ctl_table dev_table[] = { |
6fce56ec9 sysctl: Remove re... |
1538 |
{ } |
0eeca2830 [PATCH] inotify |
1539 |
}; |
1da177e4c Linux-2.6.12-rc2 |
1540 |
|
330d57fb9 [PATCH] Fix sysct... |
1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 |
static DEFINE_SPINLOCK(sysctl_lock); /* called under sysctl_lock */ static int use_table(struct ctl_table_header *p) { if (unlikely(p->unregistering)) return 0; p->used++; return 1; } /* called under sysctl_lock */ static void unuse_table(struct ctl_table_header *p) { if (!--p->used) if (unlikely(p->unregistering)) complete(p->unregistering); } /* called under sysctl_lock, will reacquire if has to wait */ static void start_unregistering(struct ctl_table_header *p) { /* * if p->used is 0, nobody will ever touch that entry again; * we'll eliminate all paths to it before dropping sysctl_lock */ if (unlikely(p->used)) { struct completion wait; init_completion(&wait); p->unregistering = &wait; spin_unlock(&sysctl_lock); wait_for_completion(&wait); spin_lock(&sysctl_lock); |
f7e6ced40 [PATCH] allow del... |
1574 1575 1576 |
} else { /* anything non-NULL; we'll never dereference it */ p->unregistering = ERR_PTR(-EINVAL); |
330d57fb9 [PATCH] Fix sysct... |
1577 1578 1579 1580 1581 1582 1583 |
} /* * do not remove from the list until nobody holds it; walking the * list in do_sysctl() relies on that. */ list_del_init(&p->ctl_entry); } |
f7e6ced40 [PATCH] allow del... |
1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 |
void sysctl_head_get(struct ctl_table_header *head) { spin_lock(&sysctl_lock); head->count++; spin_unlock(&sysctl_lock); } void sysctl_head_put(struct ctl_table_header *head) { spin_lock(&sysctl_lock); if (!--head->count) |
a95cded32 sysctl,rcu: Conve... |
1595 |
kfree_rcu(head, rcu); |
f7e6ced40 [PATCH] allow del... |
1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 |
spin_unlock(&sysctl_lock); } struct ctl_table_header *sysctl_head_grab(struct ctl_table_header *head) { if (!head) BUG(); spin_lock(&sysctl_lock); if (!use_table(head)) head = ERR_PTR(-ENOENT); spin_unlock(&sysctl_lock); return head; } |
805b5d5e0 [PATCH] sysctl: f... |
1609 1610 1611 1612 1613 1614 1615 1616 |
void sysctl_head_finish(struct ctl_table_header *head) { if (!head) return; spin_lock(&sysctl_lock); unuse_table(head); spin_unlock(&sysctl_lock); } |
734550921 [PATCH] beginning... |
1617 1618 1619 1620 1621 1622 1623 1624 |
static struct ctl_table_set * lookup_header_set(struct ctl_table_root *root, struct nsproxy *namespaces) { struct ctl_table_set *set = &root->default_set; if (root->lookup) set = root->lookup(root, namespaces); return set; } |
e51b6ba07 sysctl: Infrastru... |
1625 1626 |
static struct list_head * lookup_header_list(struct ctl_table_root *root, struct nsproxy *namespaces) |
805b5d5e0 [PATCH] sysctl: f... |
1627 |
{ |
734550921 [PATCH] beginning... |
1628 1629 |
struct ctl_table_set *set = lookup_header_set(root, namespaces); return &set->list; |
e51b6ba07 sysctl: Infrastru... |
1630 1631 1632 1633 1634 1635 1636 |
} struct ctl_table_header *__sysctl_head_next(struct nsproxy *namespaces, struct ctl_table_header *prev) { struct ctl_table_root *root; struct list_head *header_list; |
805b5d5e0 [PATCH] sysctl: f... |
1637 1638 |
struct ctl_table_header *head; struct list_head *tmp; |
e51b6ba07 sysctl: Infrastru... |
1639 |
|
805b5d5e0 [PATCH] sysctl: f... |
1640 1641 |
spin_lock(&sysctl_lock); if (prev) { |
e51b6ba07 sysctl: Infrastru... |
1642 |
head = prev; |
805b5d5e0 [PATCH] sysctl: f... |
1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 |
tmp = &prev->ctl_entry; unuse_table(prev); goto next; } tmp = &root_table_header.ctl_entry; for (;;) { head = list_entry(tmp, struct ctl_table_header, ctl_entry); if (!use_table(head)) goto next; spin_unlock(&sysctl_lock); return head; next: |
e51b6ba07 sysctl: Infrastru... |
1656 |
root = head->root; |
805b5d5e0 [PATCH] sysctl: f... |
1657 |
tmp = tmp->next; |
e51b6ba07 sysctl: Infrastru... |
1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 |
header_list = lookup_header_list(root, namespaces); if (tmp != header_list) continue; do { root = list_entry(root->root_list.next, struct ctl_table_root, root_list); if (root == &sysctl_table_root) goto out; header_list = lookup_header_list(root, namespaces); } while (list_empty(header_list)); tmp = header_list->next; |
805b5d5e0 [PATCH] sysctl: f... |
1670 |
} |
e51b6ba07 sysctl: Infrastru... |
1671 |
out: |
805b5d5e0 [PATCH] sysctl: f... |
1672 1673 1674 |
spin_unlock(&sysctl_lock); return NULL; } |
e51b6ba07 sysctl: Infrastru... |
1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 |
struct ctl_table_header *sysctl_head_next(struct ctl_table_header *prev) { return __sysctl_head_next(current->nsproxy, prev); } void register_sysctl_root(struct ctl_table_root *root) { spin_lock(&sysctl_lock); list_add_tail(&root->root_list, &sysctl_table_root.root_list); spin_unlock(&sysctl_lock); } |
1da177e4c Linux-2.6.12-rc2 |
1686 |
/* |
1ff007eb8 [PATCH] sysctl: a... |
1687 |
* sysctl_perm does NOT grant the superuser all rights automatically, because |
1da177e4c Linux-2.6.12-rc2 |
1688 1689 1690 1691 1692 |
* some sysctl variables are readonly even to root. */ static int test_perm(int mode, int op) { |
76aac0e9a CRED: Wrap task c... |
1693 |
if (!current_euid()) |
1da177e4c Linux-2.6.12-rc2 |
1694 1695 1696 |
mode >>= 6; else if (in_egroup_p(0)) mode >>= 3; |
e6305c43e [PATCH] sanitize ... |
1697 |
if ((op & ~mode & (MAY_READ|MAY_WRITE|MAY_EXEC)) == 0) |
1da177e4c Linux-2.6.12-rc2 |
1698 1699 1700 |
return 0; return -EACCES; } |
d7321cd62 sysctl: add the -... |
1701 |
int sysctl_perm(struct ctl_table_root *root, struct ctl_table *table, int op) |
1da177e4c Linux-2.6.12-rc2 |
1702 |
{ |
d7321cd62 sysctl: add the -... |
1703 |
int mode; |
d7321cd62 sysctl: add the -... |
1704 1705 1706 1707 1708 1709 |
if (root->permissions) mode = root->permissions(root, current->nsproxy, table); else mode = table->mode; return test_perm(mode, op); |
1da177e4c Linux-2.6.12-rc2 |
1710 |
} |
d912b0cc1 [PATCH] sysctl: a... |
1711 1712 |
static void sysctl_set_parent(struct ctl_table *parent, struct ctl_table *table) { |
2315ffa0a sysctl: Don't loo... |
1713 |
for (; table->procname; table++) { |
d912b0cc1 [PATCH] sysctl: a... |
1714 1715 1716 1717 1718 1719 1720 1721 1722 |
table->parent = parent; if (table->child) sysctl_set_parent(table, table->child); } } static __init int sysctl_init(void) { sysctl_set_parent(NULL, root_table); |
88f458e4b sysctl: allow emb... |
1723 |
#ifdef CONFIG_SYSCTL_SYSCALL_CHECK |
b3bd3de66 gcc-4.6: kernel/*... |
1724 |
sysctl_check_table(current->nsproxy, root_table); |
88f458e4b sysctl: allow emb... |
1725 |
#endif |
d912b0cc1 [PATCH] sysctl: a... |
1726 1727 1728 1729 |
return 0; } core_initcall(sysctl_init); |
bfbcf0347 lost sysctl fix |
1730 1731 |
static struct ctl_table *is_branch_in(struct ctl_table *branch, struct ctl_table *table) |
ae7edecc9 [PATCH] sysctl: k... |
1732 1733 1734 1735 1736 1737 |
{ struct ctl_table *p; const char *s = branch->procname; /* branch should have named subdirectory as its first element */ if (!s || !branch->child) |
bfbcf0347 lost sysctl fix |
1738 |
return NULL; |
ae7edecc9 [PATCH] sysctl: k... |
1739 1740 |
/* ... and nothing else */ |
2315ffa0a sysctl: Don't loo... |
1741 |
if (branch[1].procname) |
bfbcf0347 lost sysctl fix |
1742 |
return NULL; |
ae7edecc9 [PATCH] sysctl: k... |
1743 1744 |
/* table should contain subdirectory with the same name */ |
2315ffa0a sysctl: Don't loo... |
1745 |
for (p = table; p->procname; p++) { |
ae7edecc9 [PATCH] sysctl: k... |
1746 1747 1748 |
if (!p->child) continue; if (p->procname && strcmp(p->procname, s) == 0) |
bfbcf0347 lost sysctl fix |
1749 |
return p; |
ae7edecc9 [PATCH] sysctl: k... |
1750 |
} |
bfbcf0347 lost sysctl fix |
1751 |
return NULL; |
ae7edecc9 [PATCH] sysctl: k... |
1752 1753 1754 1755 1756 1757 |
} /* see if attaching q to p would be an improvement */ static void try_attach(struct ctl_table_header *p, struct ctl_table_header *q) { struct ctl_table *to = p->ctl_table, *by = q->ctl_table; |
bfbcf0347 lost sysctl fix |
1758 |
struct ctl_table *next; |
ae7edecc9 [PATCH] sysctl: k... |
1759 1760 |
int is_better = 0; int not_in_parent = !p->attached_by; |
bfbcf0347 lost sysctl fix |
1761 |
while ((next = is_branch_in(by, to)) != NULL) { |
ae7edecc9 [PATCH] sysctl: k... |
1762 1763 1764 1765 1766 |
if (by == q->attached_by) is_better = 1; if (to == p->attached_by) not_in_parent = 1; by = by->child; |
bfbcf0347 lost sysctl fix |
1767 |
to = next->child; |
ae7edecc9 [PATCH] sysctl: k... |
1768 1769 1770 1771 1772 1773 1774 1775 |
} if (is_better && not_in_parent) { q->attached_by = by; q->attached_to = to; q->parent = p; } } |
1da177e4c Linux-2.6.12-rc2 |
1776 |
/** |
e51b6ba07 sysctl: Infrastru... |
1777 1778 1779 |
* __register_sysctl_paths - register a sysctl hierarchy * @root: List of sysctl headers to register on * @namespaces: Data to compute which lists of sysctl entries are visible |
29e796fd4 sysctl: Add regis... |
1780 |
* @path: The path to the directory the sysctl table is in. |
1da177e4c Linux-2.6.12-rc2 |
1781 |
* @table: the top-level table structure |
1da177e4c Linux-2.6.12-rc2 |
1782 1783 |
* * Register a sysctl table hierarchy. @table should be a filled in ctl_table |
29e796fd4 sysctl: Add regis... |
1784 |
* array. A completely 0 filled entry terminates the table. |
1da177e4c Linux-2.6.12-rc2 |
1785 |
* |
d8217f076 sysctl core: Stop... |
1786 |
* The members of the &struct ctl_table structure are used as follows: |
1da177e4c Linux-2.6.12-rc2 |
1787 |
* |
1da177e4c Linux-2.6.12-rc2 |
1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 |
* procname - the name of the sysctl file under /proc/sys. Set to %NULL to not * enter a sysctl file * * data - a pointer to data for use by proc_handler * * maxlen - the maximum size in bytes of the data * * mode - the file permissions for the /proc/sys file, and for sysctl(2) * * child - a pointer to the child sysctl table if this entry is a directory, or * %NULL. * * proc_handler - the text handler routine (described below) * |
1da177e4c Linux-2.6.12-rc2 |
1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 |
* de - for internal use by the sysctl routines * * extra1, extra2 - extra pointers usable by the proc handler routines * * Leaf nodes in the sysctl tree will be represented by a single file * under /proc; non-leaf nodes will be represented by directories. * * sysctl(2) can automatically manage read and write requests through * the sysctl table. The data and maxlen fields of the ctl_table * struct enable minimal validation of the values being written to be * performed, and the mode field allows minimal authentication. * |
1da177e4c Linux-2.6.12-rc2 |
1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 |
* There must be a proc_handler routine for any terminal nodes * mirrored under /proc/sys (non-terminals are handled by a built-in * directory handler). Several default handlers are available to * cover common cases - * * proc_dostring(), proc_dointvec(), proc_dointvec_jiffies(), * proc_dointvec_userhz_jiffies(), proc_dointvec_minmax(), * proc_doulongvec_ms_jiffies_minmax(), proc_doulongvec_minmax() * * It is the handler's job to read the input buffer from user memory * and process it. The handler should return 0 on success. * * This routine returns %NULL on a failure to register, and a pointer * to the table header on success. */ |
e51b6ba07 sysctl: Infrastru... |
1829 1830 1831 1832 |
struct ctl_table_header *__register_sysctl_paths( struct ctl_table_root *root, struct nsproxy *namespaces, const struct ctl_path *path, struct ctl_table *table) |
1da177e4c Linux-2.6.12-rc2 |
1833 |
{ |
29e796fd4 sysctl: Add regis... |
1834 1835 1836 |
struct ctl_table_header *header; struct ctl_table *new, **prevp; unsigned int n, npath; |
ae7edecc9 [PATCH] sysctl: k... |
1837 |
struct ctl_table_set *set; |
29e796fd4 sysctl: Add regis... |
1838 1839 |
/* Count the path components */ |
2315ffa0a sysctl: Don't loo... |
1840 |
for (npath = 0; path[npath].procname; ++npath) |
29e796fd4 sysctl: Add regis... |
1841 1842 1843 1844 1845 |
; /* * For each path component, allocate a 2-element ctl_table array. * The first array element will be filled with the sysctl entry |
2315ffa0a sysctl: Don't loo... |
1846 |
* for this, the second will be the sentinel (procname == 0). |
29e796fd4 sysctl: Add regis... |
1847 1848 1849 1850 1851 1852 1853 |
* * We allocate everything in one go so that we don't have to * worry about freeing additional memory in unregister_sysctl_table. */ header = kzalloc(sizeof(struct ctl_table_header) + (2 * npath * sizeof(struct ctl_table)), GFP_KERNEL); if (!header) |
1da177e4c Linux-2.6.12-rc2 |
1854 |
return NULL; |
29e796fd4 sysctl: Add regis... |
1855 1856 1857 1858 1859 1860 1861 1862 |
new = (struct ctl_table *) (header + 1); /* Now connect the dots */ prevp = &header->ctl_table; for (n = 0; n < npath; ++n, ++path) { /* Copy the procname */ new->procname = path->procname; |
29e796fd4 sysctl: Add regis... |
1863 1864 1865 1866 1867 1868 1869 1870 |
new->mode = 0555; *prevp = new; prevp = &new->child; new += 2; } *prevp = table; |
23eb06de7 sysctl: Remember ... |
1871 |
header->ctl_table_arg = table; |
29e796fd4 sysctl: Add regis... |
1872 1873 1874 1875 |
INIT_LIST_HEAD(&header->ctl_entry); header->used = 0; header->unregistering = NULL; |
e51b6ba07 sysctl: Infrastru... |
1876 |
header->root = root; |
29e796fd4 sysctl: Add regis... |
1877 |
sysctl_set_parent(NULL, header->ctl_table); |
f7e6ced40 [PATCH] allow del... |
1878 |
header->count = 1; |
88f458e4b sysctl: allow emb... |
1879 |
#ifdef CONFIG_SYSCTL_SYSCALL_CHECK |
e51b6ba07 sysctl: Infrastru... |
1880 |
if (sysctl_check_table(namespaces, header->ctl_table)) { |
29e796fd4 sysctl: Add regis... |
1881 |
kfree(header); |
fc6cd25b7 sysctl: Error on ... |
1882 1883 |
return NULL; } |
88f458e4b sysctl: allow emb... |
1884 |
#endif |
330d57fb9 [PATCH] Fix sysct... |
1885 |
spin_lock(&sysctl_lock); |
734550921 [PATCH] beginning... |
1886 |
header->set = lookup_header_set(root, namespaces); |
ae7edecc9 [PATCH] sysctl: k... |
1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 |
header->attached_by = header->ctl_table; header->attached_to = root_table; header->parent = &root_table_header; for (set = header->set; set; set = set->parent) { struct ctl_table_header *p; list_for_each_entry(p, &set->list, ctl_entry) { if (p->unregistering) continue; try_attach(p, header); } } header->parent->count++; |
734550921 [PATCH] beginning... |
1899 |
list_add_tail(&header->ctl_entry, &header->set->list); |
330d57fb9 [PATCH] Fix sysct... |
1900 |
spin_unlock(&sysctl_lock); |
29e796fd4 sysctl: Add regis... |
1901 1902 1903 1904 1905 |
return header; } /** |
e51b6ba07 sysctl: Infrastru... |
1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 |
* register_sysctl_table_path - register a sysctl table hierarchy * @path: The path to the directory the sysctl table is in. * @table: the top-level table structure * * Register a sysctl table hierarchy. @table should be a filled in ctl_table * array. A completely 0 filled entry terminates the table. * * See __register_sysctl_paths for more details. */ struct ctl_table_header *register_sysctl_paths(const struct ctl_path *path, struct ctl_table *table) { return __register_sysctl_paths(&sysctl_table_root, current->nsproxy, path, table); } /** |
29e796fd4 sysctl: Add regis... |
1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 |
* register_sysctl_table - register a sysctl table hierarchy * @table: the top-level table structure * * Register a sysctl table hierarchy. @table should be a filled in ctl_table * array. A completely 0 filled entry terminates the table. * * See register_sysctl_paths for more details. */ struct ctl_table_header *register_sysctl_table(struct ctl_table *table) { static const struct ctl_path null_path[] = { {} }; return register_sysctl_paths(null_path, table); |
1da177e4c Linux-2.6.12-rc2 |
1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 |
} /** * unregister_sysctl_table - unregister a sysctl table hierarchy * @header: the header returned from register_sysctl_table * * Unregisters the sysctl table and all children. proc entries may not * actually be removed until they are no longer used by anyone. */ void unregister_sysctl_table(struct ctl_table_header * header) { |
330d57fb9 [PATCH] Fix sysct... |
1947 |
might_sleep(); |
f1dad166e Avoid potential N... |
1948 1949 1950 |
if (header == NULL) return; |
330d57fb9 [PATCH] Fix sysct... |
1951 1952 |
spin_lock(&sysctl_lock); start_unregistering(header); |
ae7edecc9 [PATCH] sysctl: k... |
1953 1954 |
if (!--header->parent->count) { WARN_ON(1); |
a95cded32 sysctl,rcu: Conve... |
1955 |
kfree_rcu(header->parent, rcu); |
ae7edecc9 [PATCH] sysctl: k... |
1956 |
} |
f7e6ced40 [PATCH] allow del... |
1957 |
if (!--header->count) |
a95cded32 sysctl,rcu: Conve... |
1958 |
kfree_rcu(header, rcu); |
330d57fb9 [PATCH] Fix sysct... |
1959 |
spin_unlock(&sysctl_lock); |
1da177e4c Linux-2.6.12-rc2 |
1960 |
} |
9043476f7 [PATCH] sanitize ... |
1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 |
int sysctl_is_seen(struct ctl_table_header *p) { struct ctl_table_set *set = p->set; int res; spin_lock(&sysctl_lock); if (p->unregistering) res = 0; else if (!set->is_seen) res = 1; else res = set->is_seen(set); spin_unlock(&sysctl_lock); return res; } |
734550921 [PATCH] beginning... |
1975 1976 1977 1978 1979 1980 1981 1982 |
void setup_sysctl_set(struct ctl_table_set *p, struct ctl_table_set *parent, int (*is_seen)(struct ctl_table_set *)) { INIT_LIST_HEAD(&p->list); p->parent = parent ? parent : &sysctl_table_root.default_set; p->is_seen = is_seen; } |
b89a81712 [PATCH] sysctl: A... |
1983 |
#else /* !CONFIG_SYSCTL */ |
d8217f076 sysctl core: Stop... |
1984 |
struct ctl_table_header *register_sysctl_table(struct ctl_table * table) |
b89a81712 [PATCH] sysctl: A... |
1985 1986 1987 |
{ return NULL; } |
29e796fd4 sysctl: Add regis... |
1988 1989 1990 1991 1992 |
struct ctl_table_header *register_sysctl_paths(const struct ctl_path *path, struct ctl_table *table) { return NULL; } |
b89a81712 [PATCH] sysctl: A... |
1993 1994 1995 |
void unregister_sysctl_table(struct ctl_table_header * table) { } |
734550921 [PATCH] beginning... |
1996 1997 1998 1999 2000 |
void setup_sysctl_set(struct ctl_table_set *p, struct ctl_table_set *parent, int (*is_seen)(struct ctl_table_set *)) { } |
f7e6ced40 [PATCH] allow del... |
2001 2002 2003 |
void sysctl_head_put(struct ctl_table_header *head) { } |
b89a81712 [PATCH] sysctl: A... |
2004 |
#endif /* CONFIG_SYSCTL */ |
1da177e4c Linux-2.6.12-rc2 |
2005 2006 2007 |
/* * /proc/sys support */ |
b89a81712 [PATCH] sysctl: A... |
2008 |
#ifdef CONFIG_PROC_SYSCTL |
1da177e4c Linux-2.6.12-rc2 |
2009 |
|
b1ba4ddde [PATCH] make kern... |
2010 |
static int _proc_do_string(void* data, int maxlen, int write, |
8d65af789 sysctl: remove "s... |
2011 |
void __user *buffer, |
b1ba4ddde [PATCH] make kern... |
2012 |
size_t *lenp, loff_t *ppos) |
1da177e4c Linux-2.6.12-rc2 |
2013 2014 2015 2016 |
{ size_t len; char __user *p; char c; |
8d0608771 [PATCH] _proc_do_... |
2017 2018 |
if (!data || !maxlen || !*lenp) { |
1da177e4c Linux-2.6.12-rc2 |
2019 2020 2021 |
*lenp = 0; return 0; } |
8d0608771 [PATCH] _proc_do_... |
2022 |
|
1da177e4c Linux-2.6.12-rc2 |
2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 |
if (write) { len = 0; p = buffer; while (len < *lenp) { if (get_user(c, p++)) return -EFAULT; if (c == 0 || c == ' ') break; len++; } |
f5dd3d6fa [PATCH] proc: sys... |
2034 2035 2036 |
if (len >= maxlen) len = maxlen-1; if(copy_from_user(data, buffer, len)) |
1da177e4c Linux-2.6.12-rc2 |
2037 |
return -EFAULT; |
f5dd3d6fa [PATCH] proc: sys... |
2038 |
((char *) data)[len] = 0; |
1da177e4c Linux-2.6.12-rc2 |
2039 2040 |
*ppos += *lenp; } else { |
f5dd3d6fa [PATCH] proc: sys... |
2041 2042 2043 |
len = strlen(data); if (len > maxlen) len = maxlen; |
8d0608771 [PATCH] _proc_do_... |
2044 2045 2046 2047 2048 2049 2050 2051 |
if (*ppos > len) { *lenp = 0; return 0; } data += *ppos; len -= *ppos; |
1da177e4c Linux-2.6.12-rc2 |
2052 2053 2054 |
if (len > *lenp) len = *lenp; if (len) |
f5dd3d6fa [PATCH] proc: sys... |
2055 |
if(copy_to_user(buffer, data, len)) |
1da177e4c Linux-2.6.12-rc2 |
2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 |
return -EFAULT; if (len < *lenp) { if(put_user(' ', ((char __user *) buffer) + len)) return -EFAULT; len++; } *lenp = len; *ppos += len; } return 0; } |
f5dd3d6fa [PATCH] proc: sys... |
2068 2069 2070 2071 |
/** * proc_dostring - read a string sysctl * @table: the sysctl table * @write: %TRUE if this is a write to the sysctl file |
f5dd3d6fa [PATCH] proc: sys... |
2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 |
* @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 sysctl: remove "s... |
2086 |
int proc_dostring(struct ctl_table *table, int write, |
f5dd3d6fa [PATCH] proc: sys... |
2087 2088 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
8d65af789 sysctl: remove "s... |
2089 |
return _proc_do_string(table->data, table->maxlen, write, |
f5dd3d6fa [PATCH] proc: sys... |
2090 2091 |
buffer, lenp, ppos); } |
00b7c3395 sysctl: refactor ... |
2092 2093 2094 2095 2096 2097 2098 2099 |
static size_t proc_skip_spaces(char **buf) { size_t ret; char *tmp = skip_spaces(*buf); ret = tmp - *buf; *buf = tmp; return ret; } |
9f977fb7a sysctl: add proc_... |
2100 2101 2102 2103 2104 2105 2106 2107 2108 |
static void proc_skip_char(char **buf, size_t *size, const char v) { while (*size) { if (**buf != v) break; (*size)--; (*buf)++; } } |
00b7c3395 sysctl: refactor ... |
2109 2110 |
#define TMPBUFLEN 22 /** |
0fc377bd6 sysctl: fix kerne... |
2111 |
* proc_get_long - reads an ASCII formatted integer from a user buffer |
00b7c3395 sysctl: refactor ... |
2112 |
* |
0fc377bd6 sysctl: fix kerne... |
2113 2114 2115 2116 2117 2118 2119 |
* @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 sysctl: refactor ... |
2120 |
* |
0fc377bd6 sysctl: fix kerne... |
2121 2122 2123 2124 |
* 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 sysctl: refactor ... |
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 2155 2156 2157 2158 2159 2160 2161 2162 2163 |
*/ 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; *val = simple_strtoul(p, &p, 0); 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 Linux-2.6.12-rc2 |
2164 |
|
00b7c3395 sysctl: refactor ... |
2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 |
if (tr && (len < *size)) *tr = *p; *buf += len; *size -= len; return 0; } /** |
0fc377bd6 sysctl: fix kerne... |
2175 |
* proc_put_long - converts an integer to a decimal ASCII formatted string |
00b7c3395 sysctl: refactor ... |
2176 |
* |
0fc377bd6 sysctl: fix kerne... |
2177 2178 2179 2180 |
* @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 sysctl: refactor ... |
2181 |
* |
0fc377bd6 sysctl: fix kerne... |
2182 2183 |
* In case of success %0 is returned and @buf and @size are updated with * the amount of bytes written. |
00b7c3395 sysctl: refactor ... |
2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 |
*/ 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 Linux-2.6.12-rc2 |
2214 |
|
00b7c3395 sysctl: refactor ... |
2215 |
static int do_proc_dointvec_conv(bool *negp, unsigned long *lvalp, |
1da177e4c Linux-2.6.12-rc2 |
2216 2217 2218 2219 2220 2221 2222 2223 |
int *valp, int write, void *data) { if (write) { *valp = *negp ? -*lvalp : *lvalp; } else { int val = *valp; if (val < 0) { |
00b7c3395 sysctl: refactor ... |
2224 |
*negp = true; |
1da177e4c Linux-2.6.12-rc2 |
2225 2226 |
*lvalp = (unsigned long)-val; } else { |
00b7c3395 sysctl: refactor ... |
2227 |
*negp = false; |
1da177e4c Linux-2.6.12-rc2 |
2228 2229 2230 2231 2232 |
*lvalp = (unsigned long)val; } } return 0; } |
00b7c3395 sysctl: refactor ... |
2233 2234 |
static const char proc_wspace_sep[] = { ' ', '\t', ' ' }; |
d8217f076 sysctl core: Stop... |
2235 |
static int __do_proc_dointvec(void *tbl_data, struct ctl_table *table, |
8d65af789 sysctl: remove "s... |
2236 |
int write, void __user *buffer, |
fcfbd547b [PATCH] IPC names... |
2237 |
size_t *lenp, loff_t *ppos, |
00b7c3395 sysctl: refactor ... |
2238 |
int (*conv)(bool *negp, unsigned long *lvalp, int *valp, |
1da177e4c Linux-2.6.12-rc2 |
2239 2240 2241 |
int write, void *data), void *data) { |
00b7c3395 sysctl: refactor ... |
2242 2243 2244 2245 |
int *i, vleft, first = 1, err = 0; unsigned long page = 0; size_t left; char *kbuf; |
1da177e4c Linux-2.6.12-rc2 |
2246 |
|
00b7c3395 sysctl: refactor ... |
2247 |
if (!tbl_data || !table->maxlen || !*lenp || (*ppos && !write)) { |
1da177e4c Linux-2.6.12-rc2 |
2248 2249 2250 2251 |
*lenp = 0; return 0; } |
fcfbd547b [PATCH] IPC names... |
2252 |
i = (int *) tbl_data; |
1da177e4c Linux-2.6.12-rc2 |
2253 2254 2255 2256 2257 |
vleft = table->maxlen / sizeof(*i); left = *lenp; if (!conv) conv = do_proc_dointvec_conv; |
00b7c3395 sysctl: refactor ... |
2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 |
if (write) { if (left > PAGE_SIZE - 1) left = PAGE_SIZE - 1; page = __get_free_page(GFP_TEMPORARY); kbuf = (char *) page; if (!kbuf) return -ENOMEM; if (copy_from_user(kbuf, buffer, left)) { err = -EFAULT; goto free; } kbuf[left] = 0; } |
1da177e4c Linux-2.6.12-rc2 |
2271 |
for (; left && vleft--; i++, first=0) { |
00b7c3395 sysctl: refactor ... |
2272 2273 |
unsigned long lval; bool neg; |
1da177e4c Linux-2.6.12-rc2 |
2274 |
|
00b7c3395 sysctl: refactor ... |
2275 2276 |
if (write) { left -= proc_skip_spaces(&kbuf); |
1da177e4c Linux-2.6.12-rc2 |
2277 |
|
563b04671 proc_dointvec: wr... |
2278 2279 |
if (!left) break; |
00b7c3395 sysctl: refactor ... |
2280 2281 2282 2283 |
err = proc_get_long(&kbuf, &left, &lval, &neg, proc_wspace_sep, sizeof(proc_wspace_sep), NULL); if (err) |
1da177e4c Linux-2.6.12-rc2 |
2284 |
break; |
00b7c3395 sysctl: refactor ... |
2285 2286 |
if (conv(&neg, &lval, i, 1, data)) { err = -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
2287 |
break; |
00b7c3395 sysctl: refactor ... |
2288 |
} |
1da177e4c Linux-2.6.12-rc2 |
2289 |
} else { |
00b7c3395 sysctl: refactor ... |
2290 2291 2292 2293 |
if (conv(&neg, &lval, i, 0, data)) { err = -EINVAL; break; } |
1da177e4c Linux-2.6.12-rc2 |
2294 |
if (!first) |
00b7c3395 sysctl: refactor ... |
2295 2296 2297 2298 2299 |
err = proc_put_char(&buffer, &left, '\t'); if (err) break; err = proc_put_long(&buffer, &left, lval, neg); if (err) |
1da177e4c Linux-2.6.12-rc2 |
2300 |
break; |
1da177e4c Linux-2.6.12-rc2 |
2301 2302 |
} } |
00b7c3395 sysctl: refactor ... |
2303 2304 2305 |
if (!write && !first && left && !err) err = proc_put_char(&buffer, &left, ' '); |
563b04671 proc_dointvec: wr... |
2306 |
if (write && !err && left) |
00b7c3395 sysctl: refactor ... |
2307 2308 |
left -= proc_skip_spaces(&kbuf); free: |
1da177e4c Linux-2.6.12-rc2 |
2309 |
if (write) { |
00b7c3395 sysctl: refactor ... |
2310 2311 2312 |
free_page(page); if (first) return err ? : -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
2313 |
} |
1da177e4c Linux-2.6.12-rc2 |
2314 2315 |
*lenp -= left; *ppos += *lenp; |
00b7c3395 sysctl: refactor ... |
2316 |
return err; |
1da177e4c Linux-2.6.12-rc2 |
2317 |
} |
8d65af789 sysctl: remove "s... |
2318 |
static int do_proc_dointvec(struct ctl_table *table, int write, |
fcfbd547b [PATCH] IPC names... |
2319 |
void __user *buffer, size_t *lenp, loff_t *ppos, |
00b7c3395 sysctl: refactor ... |
2320 |
int (*conv)(bool *negp, unsigned long *lvalp, int *valp, |
fcfbd547b [PATCH] IPC names... |
2321 2322 2323 |
int write, void *data), void *data) { |
8d65af789 sysctl: remove "s... |
2324 |
return __do_proc_dointvec(table->data, table, write, |
fcfbd547b [PATCH] IPC names... |
2325 2326 |
buffer, lenp, ppos, conv, data); } |
1da177e4c Linux-2.6.12-rc2 |
2327 2328 2329 2330 |
/** * proc_dointvec - read a vector of integers * @table: the sysctl table * @write: %TRUE if this is a write to the sysctl file |
1da177e4c Linux-2.6.12-rc2 |
2331 2332 2333 2334 2335 2336 2337 2338 2339 |
* @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 sysctl: remove "s... |
2340 |
int proc_dointvec(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2341 2342 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
8d65af789 sysctl: remove "s... |
2343 |
return do_proc_dointvec(table,write,buffer,lenp,ppos, |
1da177e4c Linux-2.6.12-rc2 |
2344 2345 |
NULL,NULL); } |
34f5a3989 [PATCH] Add TAINT... |
2346 |
/* |
25ddbb18a Make the taint fl... |
2347 2348 |
* Taint values can only be increased * This means we can safely use a temporary. |
34f5a3989 [PATCH] Add TAINT... |
2349 |
*/ |
8d65af789 sysctl: remove "s... |
2350 |
static int proc_taint(struct ctl_table *table, int write, |
34f5a3989 [PATCH] Add TAINT... |
2351 2352 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
25ddbb18a Make the taint fl... |
2353 2354 2355 |
struct ctl_table t; unsigned long tmptaint = get_taint(); int err; |
34f5a3989 [PATCH] Add TAINT... |
2356 |
|
91fcd412e Allow reading tai... |
2357 |
if (write && !capable(CAP_SYS_ADMIN)) |
34f5a3989 [PATCH] Add TAINT... |
2358 |
return -EPERM; |
25ddbb18a Make the taint fl... |
2359 2360 |
t = *table; t.data = &tmptaint; |
8d65af789 sysctl: remove "s... |
2361 |
err = proc_doulongvec_minmax(&t, write, buffer, lenp, ppos); |
25ddbb18a Make the taint fl... |
2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 |
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) add_taint(i); } } return err; |
34f5a3989 [PATCH] Add TAINT... |
2378 |
} |
bfdc0b497 sysctl: restrict ... |
2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 |
#ifdef CONFIG_PRINTK static int proc_dmesg_restrict(struct ctl_table *table, int write, 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 |
1da177e4c Linux-2.6.12-rc2 |
2389 2390 2391 2392 |
struct do_proc_dointvec_minmax_conv_param { int *min; int *max; }; |
00b7c3395 sysctl: refactor ... |
2393 2394 |
static int do_proc_dointvec_minmax_conv(bool *negp, unsigned long *lvalp, int *valp, |
1da177e4c Linux-2.6.12-rc2 |
2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 |
int write, void *data) { struct do_proc_dointvec_minmax_conv_param *param = data; if (write) { int val = *negp ? -*lvalp : *lvalp; if ((param->min && *param->min > val) || (param->max && *param->max < val)) return -EINVAL; *valp = val; } else { int val = *valp; if (val < 0) { |
00b7c3395 sysctl: refactor ... |
2407 |
*negp = true; |
1da177e4c Linux-2.6.12-rc2 |
2408 2409 |
*lvalp = (unsigned long)-val; } else { |
00b7c3395 sysctl: refactor ... |
2410 |
*negp = false; |
1da177e4c Linux-2.6.12-rc2 |
2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 |
*lvalp = (unsigned long)val; } } 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 Linux-2.6.12-rc2 |
2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 |
* @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). * * Returns 0 on success. */ |
8d65af789 sysctl: remove "s... |
2433 |
int proc_dointvec_minmax(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2434 2435 2436 2437 2438 2439 |
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 sysctl: remove "s... |
2440 |
return do_proc_dointvec(table, write, buffer, lenp, ppos, |
1da177e4c Linux-2.6.12-rc2 |
2441 2442 |
do_proc_dointvec_minmax_conv, ¶m); } |
d8217f076 sysctl core: Stop... |
2443 |
static int __do_proc_doulongvec_minmax(void *data, struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2444 2445 2446 2447 2448 |
void __user *buffer, size_t *lenp, loff_t *ppos, unsigned long convmul, unsigned long convdiv) { |
00b7c3395 sysctl: refactor ... |
2449 2450 2451 2452 2453 2454 2455 |
unsigned long *i, *min, *max; int vleft, first = 1, err = 0; unsigned long page = 0; size_t left; char *kbuf; if (!data || !table->maxlen || !*lenp || (*ppos && !write)) { |
1da177e4c Linux-2.6.12-rc2 |
2456 2457 2458 |
*lenp = 0; return 0; } |
00b7c3395 sysctl: refactor ... |
2459 |
|
fcfbd547b [PATCH] IPC names... |
2460 |
i = (unsigned long *) data; |
1da177e4c Linux-2.6.12-rc2 |
2461 2462 2463 2464 |
min = (unsigned long *) table->extra1; max = (unsigned long *) table->extra2; vleft = table->maxlen / sizeof(unsigned long); left = *lenp; |
00b7c3395 sysctl: refactor ... |
2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 |
if (write) { if (left > PAGE_SIZE - 1) left = PAGE_SIZE - 1; page = __get_free_page(GFP_TEMPORARY); kbuf = (char *) page; if (!kbuf) return -ENOMEM; if (copy_from_user(kbuf, buffer, left)) { err = -EFAULT; goto free; } kbuf[left] = 0; } |
27b3d80a7 sysctl: fix min/m... |
2479 |
for (; left && vleft--; i++, first = 0) { |
00b7c3395 sysctl: refactor ... |
2480 |
unsigned long val; |
1da177e4c Linux-2.6.12-rc2 |
2481 |
if (write) { |
00b7c3395 sysctl: refactor ... |
2482 2483 2484 2485 2486 2487 2488 2489 |
bool neg; left -= proc_skip_spaces(&kbuf); err = proc_get_long(&kbuf, &left, &val, &neg, proc_wspace_sep, sizeof(proc_wspace_sep), NULL); if (err) |
1da177e4c Linux-2.6.12-rc2 |
2490 2491 |
break; if (neg) |
1da177e4c Linux-2.6.12-rc2 |
2492 2493 2494 2495 2496 |
continue; if ((min && val < *min) || (max && val > *max)) continue; *i = val; } else { |
00b7c3395 sysctl: refactor ... |
2497 |
val = convdiv * (*i) / convmul; |
1da177e4c Linux-2.6.12-rc2 |
2498 |
if (!first) |
00b7c3395 sysctl: refactor ... |
2499 2500 2501 2502 |
err = proc_put_char(&buffer, &left, '\t'); err = proc_put_long(&buffer, &left, val, false); if (err) break; |
1da177e4c Linux-2.6.12-rc2 |
2503 2504 |
} } |
00b7c3395 sysctl: refactor ... |
2505 2506 2507 2508 2509 2510 |
if (!write && !first && left && !err) err = proc_put_char(&buffer, &left, ' '); if (write && !err) left -= proc_skip_spaces(&kbuf); free: |
1da177e4c Linux-2.6.12-rc2 |
2511 |
if (write) { |
00b7c3395 sysctl: refactor ... |
2512 2513 2514 |
free_page(page); if (first) return err ? : -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
2515 |
} |
1da177e4c Linux-2.6.12-rc2 |
2516 2517 |
*lenp -= left; *ppos += *lenp; |
00b7c3395 sysctl: refactor ... |
2518 |
return err; |
1da177e4c Linux-2.6.12-rc2 |
2519 |
} |
d8217f076 sysctl core: Stop... |
2520 |
static int do_proc_doulongvec_minmax(struct ctl_table *table, int write, |
fcfbd547b [PATCH] IPC names... |
2521 2522 2523 2524 2525 2526 |
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 sysctl: remove "s... |
2527 |
buffer, lenp, ppos, convmul, convdiv); |
fcfbd547b [PATCH] IPC names... |
2528 |
} |
1da177e4c Linux-2.6.12-rc2 |
2529 2530 2531 2532 |
/** * 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 Linux-2.6.12-rc2 |
2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 |
* @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 sysctl: remove "s... |
2545 |
int proc_doulongvec_minmax(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2546 2547 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
8d65af789 sysctl: remove "s... |
2548 |
return do_proc_doulongvec_minmax(table, write, buffer, lenp, ppos, 1l, 1l); |
1da177e4c Linux-2.6.12-rc2 |
2549 2550 2551 2552 2553 2554 |
} /** * 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 Linux-2.6.12-rc2 |
2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 |
* @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 sysctl core: Stop... |
2568 |
int proc_doulongvec_ms_jiffies_minmax(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2569 2570 2571 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
8d65af789 sysctl: remove "s... |
2572 |
return do_proc_doulongvec_minmax(table, write, buffer, |
1da177e4c Linux-2.6.12-rc2 |
2573 2574 |
lenp, ppos, HZ, 1000l); } |
00b7c3395 sysctl: refactor ... |
2575 |
static int do_proc_dointvec_jiffies_conv(bool *negp, unsigned long *lvalp, |
1da177e4c Linux-2.6.12-rc2 |
2576 2577 2578 2579 |
int *valp, int write, void *data) { if (write) { |
cba9f33d1 [PATCH] Range che... |
2580 2581 |
if (*lvalp > LONG_MAX / HZ) return 1; |
1da177e4c Linux-2.6.12-rc2 |
2582 2583 2584 2585 2586 |
*valp = *negp ? -(*lvalp*HZ) : (*lvalp*HZ); } else { int val = *valp; unsigned long lval; if (val < 0) { |
00b7c3395 sysctl: refactor ... |
2587 |
*negp = true; |
1da177e4c Linux-2.6.12-rc2 |
2588 2589 |
lval = (unsigned long)-val; } else { |
00b7c3395 sysctl: refactor ... |
2590 |
*negp = false; |
1da177e4c Linux-2.6.12-rc2 |
2591 2592 2593 2594 2595 2596 |
lval = (unsigned long)val; } *lvalp = lval / HZ; } return 0; } |
00b7c3395 sysctl: refactor ... |
2597 |
static int do_proc_dointvec_userhz_jiffies_conv(bool *negp, unsigned long *lvalp, |
1da177e4c Linux-2.6.12-rc2 |
2598 2599 2600 2601 |
int *valp, int write, void *data) { if (write) { |
cba9f33d1 [PATCH] Range che... |
2602 2603 |
if (USER_HZ < HZ && *lvalp > (LONG_MAX / HZ) * USER_HZ) return 1; |
1da177e4c Linux-2.6.12-rc2 |
2604 2605 2606 2607 2608 |
*valp = clock_t_to_jiffies(*negp ? -*lvalp : *lvalp); } else { int val = *valp; unsigned long lval; if (val < 0) { |
00b7c3395 sysctl: refactor ... |
2609 |
*negp = true; |
1da177e4c Linux-2.6.12-rc2 |
2610 2611 |
lval = (unsigned long)-val; } else { |
00b7c3395 sysctl: refactor ... |
2612 |
*negp = false; |
1da177e4c Linux-2.6.12-rc2 |
2613 2614 2615 2616 2617 2618 |
lval = (unsigned long)val; } *lvalp = jiffies_to_clock_t(lval); } return 0; } |
00b7c3395 sysctl: refactor ... |
2619 |
static int do_proc_dointvec_ms_jiffies_conv(bool *negp, unsigned long *lvalp, |
1da177e4c Linux-2.6.12-rc2 |
2620 2621 2622 2623 2624 2625 2626 2627 2628 |
int *valp, int write, void *data) { if (write) { *valp = msecs_to_jiffies(*negp ? -*lvalp : *lvalp); } else { int val = *valp; unsigned long lval; if (val < 0) { |
00b7c3395 sysctl: refactor ... |
2629 |
*negp = true; |
1da177e4c Linux-2.6.12-rc2 |
2630 2631 |
lval = (unsigned long)-val; } else { |
00b7c3395 sysctl: refactor ... |
2632 |
*negp = false; |
1da177e4c Linux-2.6.12-rc2 |
2633 2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 |
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 Linux-2.6.12-rc2 |
2644 2645 2646 2647 2648 2649 2650 2651 2652 2653 2654 |
* @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 sysctl: remove "s... |
2655 |
int proc_dointvec_jiffies(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2656 2657 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
8d65af789 sysctl: remove "s... |
2658 |
return do_proc_dointvec(table,write,buffer,lenp,ppos, |
1da177e4c Linux-2.6.12-rc2 |
2659 2660 2661 2662 2663 2664 2665 |
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 Linux-2.6.12-rc2 |
2666 2667 |
* @buffer: the user buffer * @lenp: the size of the user buffer |
1e5d53314 [PATCH] more kern... |
2668 |
* @ppos: pointer to the file position |
1da177e4c Linux-2.6.12-rc2 |
2669 2670 2671 2672 2673 2674 2675 2676 |
* * 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 sysctl: remove "s... |
2677 |
int proc_dointvec_userhz_jiffies(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2678 2679 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
8d65af789 sysctl: remove "s... |
2680 |
return do_proc_dointvec(table,write,buffer,lenp,ppos, |
1da177e4c Linux-2.6.12-rc2 |
2681 2682 2683 2684 2685 2686 2687 |
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 Linux-2.6.12-rc2 |
2688 2689 |
* @buffer: the user buffer * @lenp: the size of the user buffer |
67be2dd1b [PATCH] DocBook: ... |
2690 2691 |
* @ppos: file position * @ppos: the current position in the file |
1da177e4c Linux-2.6.12-rc2 |
2692 2693 2694 2695 2696 2697 2698 2699 |
* * 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 sysctl: remove "s... |
2700 |
int proc_dointvec_ms_jiffies(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2701 2702 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
8d65af789 sysctl: remove "s... |
2703 |
return do_proc_dointvec(table, write, buffer, lenp, ppos, |
1da177e4c Linux-2.6.12-rc2 |
2704 2705 |
do_proc_dointvec_ms_jiffies_conv, NULL); } |
8d65af789 sysctl: remove "s... |
2706 |
static int proc_do_cad_pid(struct ctl_table *table, int write, |
9ec52099e [PATCH] replace c... |
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void __user *buffer, size_t *lenp, loff_t *ppos) { struct pid *new_pid; pid_t tmp; int r; |
6c5f3e7b4 Pidns: make full ... |
2712 |
tmp = pid_vnr(cad_pid); |
9ec52099e [PATCH] replace c... |
2713 |
|
8d65af789 sysctl: remove "s... |
2714 |
r = __do_proc_dointvec(&tmp, table, write, buffer, |
9ec52099e [PATCH] replace c... |
2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 |
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 sysctl: add proc_... |
2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 |
/** * 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; unsigned long *bitmap = (unsigned long *) table->data; unsigned long *tmp_bitmap = NULL; char tr_a[] = { '-', ',', ' ' }, tr_b[] = { ',', ' ', 0 }, c; if (!bitmap_len || !left || (*ppos && !write)) { *lenp = 0; return 0; } if (write) { unsigned long page = 0; char *kbuf; if (left > PAGE_SIZE - 1) left = PAGE_SIZE - 1; page = __get_free_page(GFP_TEMPORARY); kbuf = (char *) page; if (!kbuf) return -ENOMEM; if (copy_from_user(kbuf, buffer, left)) { free_page(page); return -EFAULT; } kbuf[left] = 0; tmp_bitmap = kzalloc(BITS_TO_LONGS(bitmap_len) * sizeof(unsigned long), GFP_KERNEL); if (!tmp_bitmap) { free_page(page); return -ENOMEM; } proc_skip_char(&kbuf, &left, ' '); while (!err && left) { unsigned long val_a, val_b; bool neg; err = proc_get_long(&kbuf, &left, &val_a, &neg, tr_a, sizeof(tr_a), &c); if (err) break; if (val_a >= bitmap_len || neg) { err = -EINVAL; break; } val_b = val_a; if (left) { kbuf++; left--; } if (c == '-') { err = proc_get_long(&kbuf, &left, &val_b, &neg, tr_b, sizeof(tr_b), &c); if (err) break; if (val_b >= bitmap_len || neg || val_a > val_b) { err = -EINVAL; break; } if (left) { kbuf++; left--; } } while (val_a <= val_b) set_bit(val_a++, tmp_bitmap); first = 0; proc_skip_char(&kbuf, &left, ' '); } free_page(page); } 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 memcpy(bitmap, tmp_bitmap, BITS_TO_LONGS(bitmap_len) * sizeof(unsigned long)); } kfree(tmp_bitmap); *lenp -= left; *ppos += *lenp; return 0; } else { kfree(tmp_bitmap); return err; } } |
556105000 sysctl: fix #ifde... |
2881 |
#else /* CONFIG_PROC_SYSCTL */ |
1da177e4c Linux-2.6.12-rc2 |
2882 |
|
8d65af789 sysctl: remove "s... |
2883 |
int proc_dostring(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2884 2885 2886 2887 |
void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
8d65af789 sysctl: remove "s... |
2888 |
int proc_dointvec(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2889 |
void __user *buffer, size_t *lenp, loff_t *ppos) |
1da177e4c Linux-2.6.12-rc2 |
2890 2891 2892 |
{ return -ENOSYS; } |
8d65af789 sysctl: remove "s... |
2893 |
int proc_dointvec_minmax(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2894 2895 2896 2897 |
void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
8d65af789 sysctl: remove "s... |
2898 |
int proc_dointvec_jiffies(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2899 2900 2901 2902 |
void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
8d65af789 sysctl: remove "s... |
2903 |
int proc_dointvec_userhz_jiffies(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2904 2905 2906 2907 |
void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
8d65af789 sysctl: remove "s... |
2908 |
int proc_dointvec_ms_jiffies(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2909 2910 2911 2912 |
void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
8d65af789 sysctl: remove "s... |
2913 |
int proc_doulongvec_minmax(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2914 2915 2916 2917 |
void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
d8217f076 sysctl core: Stop... |
2918 |
int proc_doulongvec_ms_jiffies_minmax(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2919 2920 2921 2922 2923 |
void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
556105000 sysctl: fix #ifde... |
2924 |
#endif /* CONFIG_PROC_SYSCTL */ |
1da177e4c Linux-2.6.12-rc2 |
2925 |
|
1da177e4c Linux-2.6.12-rc2 |
2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 |
/* * No sense putting this after each symbol definition, twice, * exception granted :-) */ EXPORT_SYMBOL(proc_dointvec); EXPORT_SYMBOL(proc_dointvec_jiffies); EXPORT_SYMBOL(proc_dointvec_minmax); 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); EXPORT_SYMBOL(register_sysctl_table); |
29e796fd4 sysctl: Add regis... |
2939 |
EXPORT_SYMBOL(register_sysctl_paths); |
1da177e4c Linux-2.6.12-rc2 |
2940 |
EXPORT_SYMBOL(unregister_sysctl_table); |