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kernel/sysctl.c
68.9 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 <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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|
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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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#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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#ifdef CONFIG_S390 |
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#ifdef CONFIG_MATHEMU extern int sysctl_ieee_emulation_warnings; #endif extern int sysctl_userprocess_debug; |
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extern int spin_retry; |
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#endif |
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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_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, |
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}, { |
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.procname = "core_pattern", .data = core_pattern, |
71ce92f3f make sysctl/kerne... |
399 |
.maxlen = CORENAME_MAX_SIZE, |
1da177e4c Linux-2.6.12-rc2 |
400 |
.mode = 0644, |
6d4561110 sysctl: Drop & in... |
401 |
.proc_handler = proc_dostring, |
1da177e4c Linux-2.6.12-rc2 |
402 |
}, |
a293980c2 exec: let do_core... |
403 |
{ |
a293980c2 exec: let do_core... |
404 405 406 407 |
.procname = "core_pipe_limit", .data = &core_pipe_limit, .maxlen = sizeof(unsigned int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
408 |
.proc_handler = proc_dointvec, |
a293980c2 exec: let do_core... |
409 |
}, |
34f5a3989 [PATCH] Add TAINT... |
410 |
#ifdef CONFIG_PROC_SYSCTL |
1da177e4c Linux-2.6.12-rc2 |
411 |
{ |
1da177e4c Linux-2.6.12-rc2 |
412 |
.procname = "tainted", |
25ddbb18a Make the taint fl... |
413 |
.maxlen = sizeof(long), |
34f5a3989 [PATCH] Add TAINT... |
414 |
.mode = 0644, |
6d4561110 sysctl: Drop & in... |
415 |
.proc_handler = proc_taint, |
1da177e4c Linux-2.6.12-rc2 |
416 |
}, |
34f5a3989 [PATCH] Add TAINT... |
417 |
#endif |
9745512ce sched: latencytop... |
418 419 420 421 422 423 |
#ifdef CONFIG_LATENCYTOP { .procname = "latencytop", .data = &latencytop_enabled, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
424 |
.proc_handler = proc_dointvec, |
9745512ce sched: latencytop... |
425 426 |
}, #endif |
1da177e4c Linux-2.6.12-rc2 |
427 428 |
#ifdef CONFIG_BLK_DEV_INITRD { |
1da177e4c Linux-2.6.12-rc2 |
429 430 431 432 |
.procname = "real-root-dev", .data = &real_root_dev, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
433 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
434 435 |
}, #endif |
45807a1df vdso: print fatal... |
436 |
{ |
45807a1df vdso: print fatal... |
437 438 439 440 |
.procname = "print-fatal-signals", .data = &print_fatal_signals, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
441 |
.proc_handler = proc_dointvec, |
45807a1df vdso: print fatal... |
442 |
}, |
72c57ed50 sysctl: Use CONFI... |
443 |
#ifdef CONFIG_SPARC |
1da177e4c Linux-2.6.12-rc2 |
444 |
{ |
1da177e4c Linux-2.6.12-rc2 |
445 446 447 448 |
.procname = "reboot-cmd", .data = reboot_command, .maxlen = 256, .mode = 0644, |
6d4561110 sysctl: Drop & in... |
449 |
.proc_handler = proc_dostring, |
1da177e4c Linux-2.6.12-rc2 |
450 451 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
452 453 454 455 |
.procname = "stop-a", .data = &stop_a_enabled, .maxlen = sizeof (int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
456 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
457 458 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
459 460 461 462 |
.procname = "scons-poweroff", .data = &scons_pwroff, .maxlen = sizeof (int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
463 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
464 465 |
}, #endif |
0871420fa sparc64: Add tsb-... |
466 467 |
#ifdef CONFIG_SPARC64 { |
0871420fa sparc64: Add tsb-... |
468 469 470 471 |
.procname = "tsb-ratio", .data = &sysctl_tsb_ratio, .maxlen = sizeof (int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
472 |
.proc_handler = proc_dointvec, |
0871420fa sparc64: Add tsb-... |
473 474 |
}, #endif |
1da177e4c Linux-2.6.12-rc2 |
475 476 |
#ifdef __hppa__ { |
1da177e4c Linux-2.6.12-rc2 |
477 478 479 480 |
.procname = "soft-power", .data = &pwrsw_enabled, .maxlen = sizeof (int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
481 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
482 483 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
484 485 486 487 |
.procname = "unaligned-trap", .data = &unaligned_enabled, .maxlen = sizeof (int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
488 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
489 490 491 |
}, #endif { |
1da177e4c Linux-2.6.12-rc2 |
492 493 494 495 |
.procname = "ctrl-alt-del", .data = &C_A_D, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
496 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
497 |
}, |
606576ce8 ftrace: rename FT... |
498 |
#ifdef CONFIG_FUNCTION_TRACER |
b0fc494fa ftrace: add ftrac... |
499 |
{ |
b0fc494fa ftrace: add ftrac... |
500 501 502 503 |
.procname = "ftrace_enabled", .data = &ftrace_enabled, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
504 |
.proc_handler = ftrace_enable_sysctl, |
b0fc494fa ftrace: add ftrac... |
505 506 |
}, #endif |
f38f1d2aa trace: add a way ... |
507 508 |
#ifdef CONFIG_STACK_TRACER { |
f38f1d2aa trace: add a way ... |
509 510 511 512 |
.procname = "stack_tracer_enabled", .data = &stack_tracer_enabled, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
513 |
.proc_handler = stack_trace_sysctl, |
f38f1d2aa trace: add a way ... |
514 515 |
}, #endif |
944ac4259 ftrace: ftrace du... |
516 517 |
#ifdef CONFIG_TRACING { |
3299b4dd1 ftrace: sysctl typo |
518 |
.procname = "ftrace_dump_on_oops", |
944ac4259 ftrace: ftrace du... |
519 520 521 |
.data = &ftrace_dump_on_oops, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
522 |
.proc_handler = proc_dointvec, |
944ac4259 ftrace: ftrace du... |
523 524 |
}, #endif |
a1ef5adb4 remove CONFIG_KMO... |
525 |
#ifdef CONFIG_MODULES |
1da177e4c Linux-2.6.12-rc2 |
526 |
{ |
1da177e4c Linux-2.6.12-rc2 |
527 528 529 530 |
.procname = "modprobe", .data = &modprobe_path, .maxlen = KMOD_PATH_LEN, .mode = 0644, |
6d4561110 sysctl: Drop & in... |
531 |
.proc_handler = proc_dostring, |
1da177e4c Linux-2.6.12-rc2 |
532 |
}, |
3d43321b7 modules: sysctl t... |
533 |
{ |
3d43321b7 modules: sysctl t... |
534 535 536 537 538 |
.procname = "modules_disabled", .data = &modules_disabled, .maxlen = sizeof(int), .mode = 0644, /* only handle a transition from default "0" to "1" */ |
6d4561110 sysctl: Drop & in... |
539 |
.proc_handler = proc_dointvec_minmax, |
3d43321b7 modules: sysctl t... |
540 541 542 |
.extra1 = &one, .extra2 = &one, }, |
1da177e4c Linux-2.6.12-rc2 |
543 |
#endif |
94f17cd78 hotplug: Support ... |
544 |
#ifdef CONFIG_HOTPLUG |
1da177e4c Linux-2.6.12-rc2 |
545 |
{ |
1da177e4c Linux-2.6.12-rc2 |
546 |
.procname = "hotplug", |
312c004d3 [PATCH] driver co... |
547 548 |
.data = &uevent_helper, .maxlen = UEVENT_HELPER_PATH_LEN, |
1da177e4c Linux-2.6.12-rc2 |
549 |
.mode = 0644, |
6d4561110 sysctl: Drop & in... |
550 |
.proc_handler = proc_dostring, |
1da177e4c Linux-2.6.12-rc2 |
551 552 553 554 |
}, #endif #ifdef CONFIG_CHR_DEV_SG { |
1da177e4c Linux-2.6.12-rc2 |
555 556 557 558 |
.procname = "sg-big-buff", .data = &sg_big_buff, .maxlen = sizeof (int), .mode = 0444, |
6d4561110 sysctl: Drop & in... |
559 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
560 561 562 563 |
}, #endif #ifdef CONFIG_BSD_PROCESS_ACCT { |
1da177e4c Linux-2.6.12-rc2 |
564 565 566 567 |
.procname = "acct", .data = &acct_parm, .maxlen = 3*sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
568 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
569 570 |
}, #endif |
1da177e4c Linux-2.6.12-rc2 |
571 572 |
#ifdef CONFIG_MAGIC_SYSRQ { |
1da177e4c Linux-2.6.12-rc2 |
573 |
.procname = "sysrq", |
5d6f647fc [PATCH] debug: ad... |
574 |
.data = &__sysrq_enabled, |
1da177e4c Linux-2.6.12-rc2 |
575 576 |
.maxlen = sizeof (int), .mode = 0644, |
97f5f0cd8 Input: implement ... |
577 |
.proc_handler = sysrq_sysctl_handler, |
1da177e4c Linux-2.6.12-rc2 |
578 579 |
}, #endif |
d6f8ff738 [PATCH] cad_pid s... |
580 |
#ifdef CONFIG_PROC_SYSCTL |
1da177e4c Linux-2.6.12-rc2 |
581 |
{ |
1da177e4c Linux-2.6.12-rc2 |
582 |
.procname = "cad_pid", |
9ec52099e [PATCH] replace c... |
583 |
.data = NULL, |
1da177e4c Linux-2.6.12-rc2 |
584 585 |
.maxlen = sizeof (int), .mode = 0600, |
6d4561110 sysctl: Drop & in... |
586 |
.proc_handler = proc_do_cad_pid, |
1da177e4c Linux-2.6.12-rc2 |
587 |
}, |
d6f8ff738 [PATCH] cad_pid s... |
588 |
#endif |
1da177e4c Linux-2.6.12-rc2 |
589 |
{ |
1da177e4c Linux-2.6.12-rc2 |
590 591 592 593 |
.procname = "threads-max", .data = &max_threads, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
594 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
595 596 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
597 598 599 600 |
.procname = "random", .mode = 0555, .child = random_table, }, |
1da177e4c Linux-2.6.12-rc2 |
601 |
{ |
17f60a7da capabilites: allo... |
602 603 604 605 606 |
.procname = "usermodehelper", .mode = 0555, .child = usermodehelper_table, }, { |
1da177e4c Linux-2.6.12-rc2 |
607 608 609 610 |
.procname = "overflowuid", .data = &overflowuid, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
611 |
.proc_handler = proc_dointvec_minmax, |
1da177e4c Linux-2.6.12-rc2 |
612 613 614 615 |
.extra1 = &minolduid, .extra2 = &maxolduid, }, { |
1da177e4c Linux-2.6.12-rc2 |
616 617 618 619 |
.procname = "overflowgid", .data = &overflowgid, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
620 |
.proc_handler = proc_dointvec_minmax, |
1da177e4c Linux-2.6.12-rc2 |
621 622 623 |
.extra1 = &minolduid, .extra2 = &maxolduid, }, |
347a8dc3b [PATCH] s390: cle... |
624 |
#ifdef CONFIG_S390 |
1da177e4c Linux-2.6.12-rc2 |
625 626 |
#ifdef CONFIG_MATHEMU { |
1da177e4c Linux-2.6.12-rc2 |
627 628 629 630 |
.procname = "ieee_emulation_warnings", .data = &sysctl_ieee_emulation_warnings, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
631 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
632 633 |
}, #endif |
1da177e4c Linux-2.6.12-rc2 |
634 |
{ |
1da177e4c Linux-2.6.12-rc2 |
635 |
.procname = "userprocess_debug", |
ab3c68ee5 [S390] debug: ena... |
636 |
.data = &show_unhandled_signals, |
1da177e4c Linux-2.6.12-rc2 |
637 638 |
.maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
639 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
640 641 642 |
}, #endif { |
1da177e4c Linux-2.6.12-rc2 |
643 644 645 646 |
.procname = "pid_max", .data = &pid_max, .maxlen = sizeof (int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
647 |
.proc_handler = proc_dointvec_minmax, |
1da177e4c Linux-2.6.12-rc2 |
648 649 650 651 |
.extra1 = &pid_max_min, .extra2 = &pid_max_max, }, { |
1da177e4c Linux-2.6.12-rc2 |
652 653 654 655 |
.procname = "panic_on_oops", .data = &panic_on_oops, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
656 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
657 |
}, |
7ef3d2fd1 printk_ratelimit(... |
658 659 |
#if defined CONFIG_PRINTK { |
7ef3d2fd1 printk_ratelimit(... |
660 661 662 663 |
.procname = "printk", .data = &console_loglevel, .maxlen = 4*sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
664 |
.proc_handler = proc_dointvec, |
7ef3d2fd1 printk_ratelimit(... |
665 |
}, |
1da177e4c Linux-2.6.12-rc2 |
666 |
{ |
1da177e4c Linux-2.6.12-rc2 |
667 |
.procname = "printk_ratelimit", |
717115e1a printk ratelimiti... |
668 |
.data = &printk_ratelimit_state.interval, |
1da177e4c Linux-2.6.12-rc2 |
669 670 |
.maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
671 |
.proc_handler = proc_dointvec_jiffies, |
1da177e4c Linux-2.6.12-rc2 |
672 673 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
674 |
.procname = "printk_ratelimit_burst", |
717115e1a printk ratelimiti... |
675 |
.data = &printk_ratelimit_state.burst, |
1da177e4c Linux-2.6.12-rc2 |
676 677 |
.maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
678 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
679 |
}, |
af91322ef printk: add print... |
680 |
{ |
af91322ef printk: add print... |
681 682 683 684 |
.procname = "printk_delay", .data = &printk_delay_msec, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
685 |
.proc_handler = proc_dointvec_minmax, |
af91322ef printk: add print... |
686 687 688 |
.extra1 = &zero, .extra2 = &ten_thousand, }, |
1da177e4c Linux-2.6.12-rc2 |
689 |
{ |
eaf06b241 Restrict unprivil... |
690 691 692 693 694 695 696 697 |
.procname = "dmesg_restrict", .data = &dmesg_restrict, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &zero, .extra2 = &one, }, |
455cd5ab3 kptr_restrict for... |
698 699 700 701 702 |
{ .procname = "kptr_restrict", .data = &kptr_restrict, .maxlen = sizeof(int), .mode = 0644, |
bfdc0b497 sysctl: restrict ... |
703 |
.proc_handler = proc_dmesg_restrict, |
455cd5ab3 kptr_restrict for... |
704 705 706 |
.extra1 = &zero, .extra2 = &two, }, |
df6e61d4c kernel/sysctl.c: ... |
707 |
#endif |
eaf06b241 Restrict unprivil... |
708 |
{ |
1da177e4c Linux-2.6.12-rc2 |
709 710 711 712 |
.procname = "ngroups_max", .data = &ngroups_max, .maxlen = sizeof (int), .mode = 0444, |
6d4561110 sysctl: Drop & in... |
713 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
714 |
}, |
58687acba lockup_detector: ... |
715 |
#if defined(CONFIG_LOCKUP_DETECTOR) |
504d7cf10 nmi_watchdog: Com... |
716 |
{ |
58687acba lockup_detector: ... |
717 718 |
.procname = "watchdog", .data = &watchdog_enabled, |
504d7cf10 nmi_watchdog: Com... |
719 720 |
.maxlen = sizeof (int), .mode = 0644, |
586692a5a watchdog: Disable... |
721 722 723 |
.proc_handler = proc_dowatchdog, .extra1 = &zero, .extra2 = &one, |
58687acba lockup_detector: ... |
724 725 726 |
}, { .procname = "watchdog_thresh", |
586692a5a watchdog: Disable... |
727 |
.data = &watchdog_thresh, |
58687acba lockup_detector: ... |
728 729 |
.maxlen = sizeof(int), .mode = 0644, |
586692a5a watchdog: Disable... |
730 |
.proc_handler = proc_dowatchdog, |
58687acba lockup_detector: ... |
731 732 |
.extra1 = &neg_one, .extra2 = &sixty, |
504d7cf10 nmi_watchdog: Com... |
733 |
}, |
2508ce184 lockup_detector: ... |
734 735 736 737 738 739 740 741 742 |
{ .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... |
743 744 745 746 747 |
{ .procname = "nmi_watchdog", .data = &watchdog_enabled, .maxlen = sizeof (int), .mode = 0644, |
586692a5a watchdog: Disable... |
748 749 750 |
.proc_handler = proc_dowatchdog, .extra1 = &zero, .extra2 = &one, |
5dc305587 x86, NMI: Add bac... |
751 752 753 754 755 756 757 758 759 760 |
}, #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... |
761 |
#endif |
1da177e4c Linux-2.6.12-rc2 |
762 763 |
#if defined(CONFIG_X86) { |
8da5adda9 [PATCH] x86: Allo... |
764 765 766 767 |
.procname = "panic_on_unrecovered_nmi", .data = &panic_on_unrecovered_nmi, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
768 |
.proc_handler = proc_dointvec, |
8da5adda9 [PATCH] x86: Allo... |
769 770 |
}, { |
5211a242d x86: Add sysctl t... |
771 772 773 774 |
.procname = "panic_on_io_nmi", .data = &panic_on_io_nmi, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
775 |
.proc_handler = proc_dointvec, |
5211a242d x86: Add sysctl t... |
776 777 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
778 779 780 781 |
.procname = "bootloader_type", .data = &bootloader_type, .maxlen = sizeof (int), .mode = 0444, |
6d4561110 sysctl: Drop & in... |
782 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
783 |
}, |
0741f4d20 [PATCH] x86: add ... |
784 |
{ |
5031296c5 x86: add extensio... |
785 786 787 788 |
.procname = "bootloader_version", .data = &bootloader_version, .maxlen = sizeof (int), .mode = 0444, |
6d4561110 sysctl: Drop & in... |
789 |
.proc_handler = proc_dointvec, |
5031296c5 x86: add extensio... |
790 791 |
}, { |
0741f4d20 [PATCH] x86: add ... |
792 793 794 795 |
.procname = "kstack_depth_to_print", .data = &kstack_depth_to_print, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
796 |
.proc_handler = proc_dointvec, |
0741f4d20 [PATCH] x86: add ... |
797 |
}, |
6e7c40259 x86: various chan... |
798 |
{ |
6e7c40259 x86: various chan... |
799 800 801 802 |
.procname = "io_delay_type", .data = &io_delay_type, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
803 |
.proc_handler = proc_dointvec, |
6e7c40259 x86: various chan... |
804 |
}, |
1da177e4c Linux-2.6.12-rc2 |
805 |
#endif |
7a9166e3b [PATCH] Fix undef... |
806 |
#if defined(CONFIG_MMU) |
1da177e4c Linux-2.6.12-rc2 |
807 |
{ |
1da177e4c Linux-2.6.12-rc2 |
808 809 810 811 |
.procname = "randomize_va_space", .data = &randomize_va_space, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
812 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
813 |
}, |
7a9166e3b [PATCH] Fix undef... |
814 |
#endif |
0152fb376 [PATCH] s390: spi... |
815 |
#if defined(CONFIG_S390) && defined(CONFIG_SMP) |
951f22d5b [PATCH] s390: spi... |
816 |
{ |
951f22d5b [PATCH] s390: spi... |
817 818 819 820 |
.procname = "spin_retry", .data = &spin_retry, .maxlen = sizeof (int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
821 |
.proc_handler = proc_dointvec, |
951f22d5b [PATCH] s390: spi... |
822 823 |
}, #endif |
673d5b43d ACPI: restore CON... |
824 |
#if defined(CONFIG_ACPI_SLEEP) && defined(CONFIG_X86) |
c255d844d [PATCH] suspend-t... |
825 |
{ |
c255d844d [PATCH] suspend-t... |
826 |
.procname = "acpi_video_flags", |
77afcf78a PM: Integrate bee... |
827 |
.data = &acpi_realmode_flags, |
c255d844d [PATCH] suspend-t... |
828 829 |
.maxlen = sizeof (unsigned long), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
830 |
.proc_handler = proc_doulongvec_minmax, |
c255d844d [PATCH] suspend-t... |
831 832 |
}, #endif |
d2b176ed8 [IA64] sysctl opt... |
833 834 |
#ifdef CONFIG_IA64 { |
d2b176ed8 [IA64] sysctl opt... |
835 836 837 838 |
.procname = "ignore-unaligned-usertrap", .data = &no_unaligned_warning, .maxlen = sizeof (int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
839 |
.proc_handler = proc_dointvec, |
d2b176ed8 [IA64] sysctl opt... |
840 |
}, |
88fc241f5 [IA64] dump stack... |
841 |
{ |
88fc241f5 [IA64] dump stack... |
842 843 844 845 |
.procname = "unaligned-dump-stack", .data = &unaligned_dump_stack, .maxlen = sizeof (int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
846 |
.proc_handler = proc_dointvec, |
88fc241f5 [IA64] dump stack... |
847 |
}, |
d2b176ed8 [IA64] sysctl opt... |
848 |
#endif |
e162b39a3 softlockup: decou... |
849 850 |
#ifdef CONFIG_DETECT_HUNG_TASK { |
e162b39a3 softlockup: decou... |
851 852 853 854 |
.procname = "hung_task_panic", .data = &sysctl_hung_task_panic, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
855 |
.proc_handler = proc_dointvec_minmax, |
e162b39a3 softlockup: decou... |
856 857 858 |
.extra1 = &zero, .extra2 = &one, }, |
82a1fcb90 softlockup: autom... |
859 |
{ |
82a1fcb90 softlockup: autom... |
860 861 |
.procname = "hung_task_check_count", .data = &sysctl_hung_task_check_count, |
90739081e softlockup: fix s... |
862 |
.maxlen = sizeof(unsigned long), |
82a1fcb90 softlockup: autom... |
863 |
.mode = 0644, |
6d4561110 sysctl: Drop & in... |
864 |
.proc_handler = proc_doulongvec_minmax, |
82a1fcb90 softlockup: autom... |
865 866 |
}, { |
82a1fcb90 softlockup: autom... |
867 868 |
.procname = "hung_task_timeout_secs", .data = &sysctl_hung_task_timeout_secs, |
90739081e softlockup: fix s... |
869 |
.maxlen = sizeof(unsigned long), |
82a1fcb90 softlockup: autom... |
870 |
.mode = 0644, |
6d4561110 sysctl: Drop & in... |
871 |
.proc_handler = proc_dohung_task_timeout_secs, |
82a1fcb90 softlockup: autom... |
872 873 |
}, { |
82a1fcb90 softlockup: autom... |
874 875 |
.procname = "hung_task_warnings", .data = &sysctl_hung_task_warnings, |
90739081e softlockup: fix s... |
876 |
.maxlen = sizeof(unsigned long), |
82a1fcb90 softlockup: autom... |
877 |
.mode = 0644, |
6d4561110 sysctl: Drop & in... |
878 |
.proc_handler = proc_doulongvec_minmax, |
82a1fcb90 softlockup: autom... |
879 |
}, |
c4f3b63fe softlockup: add a... |
880 |
#endif |
bebfa1013 [PATCH] x86_64: A... |
881 882 |
#ifdef CONFIG_COMPAT { |
bebfa1013 [PATCH] x86_64: A... |
883 884 885 886 |
.procname = "compat-log", .data = &compat_log, .maxlen = sizeof (int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
887 |
.proc_handler = proc_dointvec, |
bebfa1013 [PATCH] x86_64: A... |
888 889 |
}, #endif |
23f78d4a0 [PATCH] pi-futex:... |
890 891 |
#ifdef CONFIG_RT_MUTEXES { |
23f78d4a0 [PATCH] pi-futex:... |
892 893 894 895 |
.procname = "max_lock_depth", .data = &max_lock_depth, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
896 |
.proc_handler = proc_dointvec, |
23f78d4a0 [PATCH] pi-futex:... |
897 898 |
}, #endif |
10a0a8d4e Add common orderl... |
899 |
{ |
10a0a8d4e Add common orderl... |
900 901 902 903 |
.procname = "poweroff_cmd", .data = &poweroff_cmd, .maxlen = POWEROFF_CMD_PATH_LEN, .mode = 0644, |
6d4561110 sysctl: Drop & in... |
904 |
.proc_handler = proc_dostring, |
10a0a8d4e Add common orderl... |
905 |
}, |
0b77f5bfb keys: make the ke... |
906 907 |
#ifdef CONFIG_KEYS { |
0b77f5bfb keys: make the ke... |
908 909 910 911 912 |
.procname = "keys", .mode = 0555, .child = key_sysctls, }, #endif |
31a72bce0 rcu: make rcutort... |
913 914 |
#ifdef CONFIG_RCU_TORTURE_TEST { |
31a72bce0 rcu: make rcutort... |
915 916 917 918 |
.procname = "rcutorture_runnable", .data = &rcutorture_runnable, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
919 |
.proc_handler = proc_dointvec, |
31a72bce0 rcu: make rcutort... |
920 921 |
}, #endif |
cdd6c482c perf: Do the big ... |
922 |
#ifdef CONFIG_PERF_EVENTS |
aa4a22187 perf: Comment /pr... |
923 924 925 926 927 928 |
/* * 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... |
929 |
{ |
cdd6c482c perf: Do the big ... |
930 931 932 |
.procname = "perf_event_paranoid", .data = &sysctl_perf_event_paranoid, .maxlen = sizeof(sysctl_perf_event_paranoid), |
1ccd15497 perf_counter: sys... |
933 |
.mode = 0644, |
6d4561110 sysctl: Drop & in... |
934 |
.proc_handler = proc_dointvec, |
1ccd15497 perf_counter: sys... |
935 |
}, |
c5078f78b perf_counter: pro... |
936 |
{ |
cdd6c482c perf: Do the big ... |
937 938 939 |
.procname = "perf_event_mlock_kb", .data = &sysctl_perf_event_mlock, .maxlen = sizeof(sysctl_perf_event_mlock), |
c5078f78b perf_counter: pro... |
940 |
.mode = 0644, |
6d4561110 sysctl: Drop & in... |
941 |
.proc_handler = proc_dointvec, |
c5078f78b perf_counter: pro... |
942 |
}, |
a78ac3258 perf_counter: Gen... |
943 |
{ |
cdd6c482c perf: Do the big ... |
944 945 946 |
.procname = "perf_event_max_sample_rate", .data = &sysctl_perf_event_sample_rate, .maxlen = sizeof(sysctl_perf_event_sample_rate), |
a78ac3258 perf_counter: Gen... |
947 |
.mode = 0644, |
163ec4354 perf: Optimize th... |
948 |
.proc_handler = perf_proc_update_handler, |
a78ac3258 perf_counter: Gen... |
949 |
}, |
1ccd15497 perf_counter: sys... |
950 |
#endif |
dfec072ec kmemcheck: add th... |
951 952 |
#ifdef CONFIG_KMEMCHECK { |
dfec072ec kmemcheck: add th... |
953 954 955 956 |
.procname = "kmemcheck", .data = &kmemcheck_enabled, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
957 |
.proc_handler = proc_dointvec, |
dfec072ec kmemcheck: add th... |
958 959 |
}, #endif |
cb684b5bc block: fix linkag... |
960 |
#ifdef CONFIG_BLOCK |
5e605b64a block: add blk-io... |
961 |
{ |
5e605b64a block: add blk-io... |
962 963 964 965 |
.procname = "blk_iopoll", .data = &blk_iopoll_enabled, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
966 |
.proc_handler = proc_dointvec, |
5e605b64a block: add blk-io... |
967 |
}, |
cb684b5bc block: fix linkag... |
968 |
#endif |
6fce56ec9 sysctl: Remove re... |
969 |
{ } |
1da177e4c Linux-2.6.12-rc2 |
970 |
}; |
d8217f076 sysctl core: Stop... |
971 |
static struct ctl_table vm_table[] = { |
1da177e4c Linux-2.6.12-rc2 |
972 |
{ |
1da177e4c Linux-2.6.12-rc2 |
973 974 975 976 |
.procname = "overcommit_memory", .data = &sysctl_overcommit_memory, .maxlen = sizeof(sysctl_overcommit_memory), .mode = 0644, |
cb16e95fa sysctl: add some ... |
977 978 979 |
.proc_handler = proc_dointvec_minmax, .extra1 = &zero, .extra2 = &two, |
1da177e4c Linux-2.6.12-rc2 |
980 981 |
}, { |
fadd8fbd1 [PATCH] support f... |
982 983 984 985 |
.procname = "panic_on_oom", .data = &sysctl_panic_on_oom, .maxlen = sizeof(sysctl_panic_on_oom), .mode = 0644, |
cb16e95fa sysctl: add some ... |
986 987 988 |
.proc_handler = proc_dointvec_minmax, .extra1 = &zero, .extra2 = &two, |
fadd8fbd1 [PATCH] support f... |
989 990 |
}, { |
fe071d7e8 oom: add oom_kill... |
991 992 993 994 |
.procname = "oom_kill_allocating_task", .data = &sysctl_oom_kill_allocating_task, .maxlen = sizeof(sysctl_oom_kill_allocating_task), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
995 |
.proc_handler = proc_dointvec, |
fe071d7e8 oom: add oom_kill... |
996 997 |
}, { |
fef1bdd68 oom: add sysctl t... |
998 999 1000 1001 |
.procname = "oom_dump_tasks", .data = &sysctl_oom_dump_tasks, .maxlen = sizeof(sysctl_oom_dump_tasks), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1002 |
.proc_handler = proc_dointvec, |
fef1bdd68 oom: add sysctl t... |
1003 1004 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1005 1006 1007 1008 |
.procname = "overcommit_ratio", .data = &sysctl_overcommit_ratio, .maxlen = sizeof(sysctl_overcommit_ratio), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1009 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
1010 1011 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1012 1013 1014 1015 |
.procname = "page-cluster", .data = &page_cluster, .maxlen = sizeof(int), .mode = 0644, |
cb16e95fa sysctl: add some ... |
1016 1017 |
.proc_handler = proc_dointvec_minmax, .extra1 = &zero, |
1da177e4c Linux-2.6.12-rc2 |
1018 1019 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1020 1021 1022 1023 |
.procname = "dirty_background_ratio", .data = &dirty_background_ratio, .maxlen = sizeof(dirty_background_ratio), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1024 |
.proc_handler = dirty_background_ratio_handler, |
1da177e4c Linux-2.6.12-rc2 |
1025 1026 1027 1028 |
.extra1 = &zero, .extra2 = &one_hundred, }, { |
2da02997e mm: add dirty_bac... |
1029 1030 1031 1032 |
.procname = "dirty_background_bytes", .data = &dirty_background_bytes, .maxlen = sizeof(dirty_background_bytes), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1033 |
.proc_handler = dirty_background_bytes_handler, |
fc3501d41 mm: fix dirty_byt... |
1034 |
.extra1 = &one_ul, |
2da02997e mm: add dirty_bac... |
1035 1036 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1037 1038 1039 1040 |
.procname = "dirty_ratio", .data = &vm_dirty_ratio, .maxlen = sizeof(vm_dirty_ratio), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1041 |
.proc_handler = dirty_ratio_handler, |
1da177e4c Linux-2.6.12-rc2 |
1042 1043 1044 1045 |
.extra1 = &zero, .extra2 = &one_hundred, }, { |
2da02997e mm: add dirty_bac... |
1046 1047 1048 1049 |
.procname = "dirty_bytes", .data = &vm_dirty_bytes, .maxlen = sizeof(vm_dirty_bytes), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1050 |
.proc_handler = dirty_bytes_handler, |
9e4a5bda8 mm: prevent divid... |
1051 |
.extra1 = &dirty_bytes_min, |
2da02997e mm: add dirty_bac... |
1052 1053 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1054 |
.procname = "dirty_writeback_centisecs", |
f6ef94381 [PATCH] Represent... |
1055 1056 |
.data = &dirty_writeback_interval, .maxlen = sizeof(dirty_writeback_interval), |
1da177e4c Linux-2.6.12-rc2 |
1057 |
.mode = 0644, |
6d4561110 sysctl: Drop & in... |
1058 |
.proc_handler = dirty_writeback_centisecs_handler, |
1da177e4c Linux-2.6.12-rc2 |
1059 1060 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1061 |
.procname = "dirty_expire_centisecs", |
f6ef94381 [PATCH] Represent... |
1062 1063 |
.data = &dirty_expire_interval, .maxlen = sizeof(dirty_expire_interval), |
1da177e4c Linux-2.6.12-rc2 |
1064 |
.mode = 0644, |
cb16e95fa sysctl: add some ... |
1065 1066 |
.proc_handler = proc_dointvec_minmax, .extra1 = &zero, |
1da177e4c Linux-2.6.12-rc2 |
1067 1068 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1069 1070 1071 1072 |
.procname = "nr_pdflush_threads", .data = &nr_pdflush_threads, .maxlen = sizeof nr_pdflush_threads, .mode = 0444 /* read-only*/, |
6d4561110 sysctl: Drop & in... |
1073 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
1074 1075 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1076 1077 1078 1079 |
.procname = "swappiness", .data = &vm_swappiness, .maxlen = sizeof(vm_swappiness), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1080 |
.proc_handler = proc_dointvec_minmax, |
1da177e4c Linux-2.6.12-rc2 |
1081 1082 1083 1084 |
.extra1 = &zero, .extra2 = &one_hundred, }, #ifdef CONFIG_HUGETLB_PAGE |
06808b082 hugetlb: derive h... |
1085 |
{ |
1da177e4c Linux-2.6.12-rc2 |
1086 |
.procname = "nr_hugepages", |
e5ff21594 hugetlb: multiple... |
1087 |
.data = NULL, |
1da177e4c Linux-2.6.12-rc2 |
1088 1089 |
.maxlen = sizeof(unsigned long), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1090 |
.proc_handler = hugetlb_sysctl_handler, |
1da177e4c Linux-2.6.12-rc2 |
1091 1092 |
.extra1 = (void *)&hugetlb_zero, .extra2 = (void *)&hugetlb_infinity, |
06808b082 hugetlb: derive h... |
1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 |
}, #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 |
1105 |
{ |
1da177e4c Linux-2.6.12-rc2 |
1106 1107 1108 1109 |
.procname = "hugetlb_shm_group", .data = &sysctl_hugetlb_shm_group, .maxlen = sizeof(gid_t), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1110 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
1111 |
}, |
396faf030 Allow huge page a... |
1112 |
{ |
396faf030 Allow huge page a... |
1113 1114 1115 1116 |
.procname = "hugepages_treat_as_movable", .data = &hugepages_treat_as_movable, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1117 |
.proc_handler = hugetlb_treat_movable_handler, |
396faf030 Allow huge page a... |
1118 |
}, |
54f9f80d6 hugetlb: Add huge... |
1119 |
{ |
d1c3fb1f8 hugetlb: introduc... |
1120 |
.procname = "nr_overcommit_hugepages", |
e5ff21594 hugetlb: multiple... |
1121 1122 |
.data = NULL, .maxlen = sizeof(unsigned long), |
d1c3fb1f8 hugetlb: introduc... |
1123 |
.mode = 0644, |
6d4561110 sysctl: Drop & in... |
1124 |
.proc_handler = hugetlb_overcommit_handler, |
e5ff21594 hugetlb: multiple... |
1125 1126 |
.extra1 = (void *)&hugetlb_zero, .extra2 = (void *)&hugetlb_infinity, |
d1c3fb1f8 hugetlb: introduc... |
1127 |
}, |
1da177e4c Linux-2.6.12-rc2 |
1128 1129 |
#endif { |
1da177e4c Linux-2.6.12-rc2 |
1130 1131 1132 1133 |
.procname = "lowmem_reserve_ratio", .data = &sysctl_lowmem_reserve_ratio, .maxlen = sizeof(sysctl_lowmem_reserve_ratio), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1134 |
.proc_handler = lowmem_reserve_ratio_sysctl_handler, |
1da177e4c Linux-2.6.12-rc2 |
1135 1136 |
}, { |
9d0243bca [PATCH] drop-page... |
1137 1138 1139 1140 1141 |
.procname = "drop_caches", .data = &sysctl_drop_caches, .maxlen = sizeof(int), .mode = 0644, .proc_handler = drop_caches_sysctl_handler, |
cb16e95fa sysctl: add some ... |
1142 1143 |
.extra1 = &one, .extra2 = &three, |
9d0243bca [PATCH] drop-page... |
1144 |
}, |
76ab0f530 mm: compaction: a... |
1145 1146 1147 1148 1149 1150 1151 1152 |
#ifdef CONFIG_COMPACTION { .procname = "compact_memory", .data = &sysctl_compact_memory, .maxlen = sizeof(int), .mode = 0200, .proc_handler = sysctl_compaction_handler, }, |
5e7719058 mm: compaction: a... |
1153 1154 1155 1156 1157 1158 1159 1160 1161 |
{ .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... |
1162 |
#endif /* CONFIG_COMPACTION */ |
9d0243bca [PATCH] drop-page... |
1163 |
{ |
1da177e4c Linux-2.6.12-rc2 |
1164 1165 1166 1167 |
.procname = "min_free_kbytes", .data = &min_free_kbytes, .maxlen = sizeof(min_free_kbytes), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1168 |
.proc_handler = min_free_kbytes_sysctl_handler, |
1da177e4c Linux-2.6.12-rc2 |
1169 1170 |
.extra1 = &zero, }, |
8ad4b1fb8 [PATCH] Make high... |
1171 |
{ |
8ad4b1fb8 [PATCH] Make high... |
1172 1173 1174 1175 |
.procname = "percpu_pagelist_fraction", .data = &percpu_pagelist_fraction, .maxlen = sizeof(percpu_pagelist_fraction), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1176 |
.proc_handler = percpu_pagelist_fraction_sysctl_handler, |
8ad4b1fb8 [PATCH] Make high... |
1177 1178 |
.extra1 = &min_percpu_pagelist_fract, }, |
1da177e4c Linux-2.6.12-rc2 |
1179 1180 |
#ifdef CONFIG_MMU { |
1da177e4c Linux-2.6.12-rc2 |
1181 1182 1183 1184 |
.procname = "max_map_count", .data = &sysctl_max_map_count, .maxlen = sizeof(sysctl_max_map_count), .mode = 0644, |
3e26120cc kernel/sysctl.c: ... |
1185 |
.proc_handler = proc_dointvec_minmax, |
70da2340f 'sysctl_max_map_c... |
1186 |
.extra1 = &zero, |
1da177e4c Linux-2.6.12-rc2 |
1187 |
}, |
dd8632a12 NOMMU: Make mmap ... |
1188 1189 |
#else { |
dd8632a12 NOMMU: Make mmap ... |
1190 1191 1192 1193 |
.procname = "nr_trim_pages", .data = &sysctl_nr_trim_pages, .maxlen = sizeof(sysctl_nr_trim_pages), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1194 |
.proc_handler = proc_dointvec_minmax, |
dd8632a12 NOMMU: Make mmap ... |
1195 1196 |
.extra1 = &zero, }, |
1da177e4c Linux-2.6.12-rc2 |
1197 1198 |
#endif { |
1da177e4c Linux-2.6.12-rc2 |
1199 1200 1201 1202 |
.procname = "laptop_mode", .data = &laptop_mode, .maxlen = sizeof(laptop_mode), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1203 |
.proc_handler = proc_dointvec_jiffies, |
1da177e4c Linux-2.6.12-rc2 |
1204 1205 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1206 1207 1208 1209 |
.procname = "block_dump", .data = &block_dump, .maxlen = sizeof(block_dump), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1210 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
1211 1212 1213 |
.extra1 = &zero, }, { |
1da177e4c Linux-2.6.12-rc2 |
1214 1215 1216 1217 |
.procname = "vfs_cache_pressure", .data = &sysctl_vfs_cache_pressure, .maxlen = sizeof(sysctl_vfs_cache_pressure), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1218 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
1219 1220 1221 1222 |
.extra1 = &zero, }, #ifdef HAVE_ARCH_PICK_MMAP_LAYOUT { |
1da177e4c Linux-2.6.12-rc2 |
1223 1224 1225 1226 |
.procname = "legacy_va_layout", .data = &sysctl_legacy_va_layout, .maxlen = sizeof(sysctl_legacy_va_layout), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1227 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
1228 1229 1230 |
.extra1 = &zero, }, #endif |
1743660b9 [PATCH] Zone recl... |
1231 1232 |
#ifdef CONFIG_NUMA { |
1743660b9 [PATCH] Zone recl... |
1233 1234 1235 1236 |
.procname = "zone_reclaim_mode", .data = &zone_reclaim_mode, .maxlen = sizeof(zone_reclaim_mode), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1237 |
.proc_handler = proc_dointvec, |
c84db23c6 [PATCH] zone_recl... |
1238 |
.extra1 = &zero, |
1743660b9 [PATCH] Zone recl... |
1239 |
}, |
9614634fe [PATCH] ZVC/zone_... |
1240 |
{ |
9614634fe [PATCH] ZVC/zone_... |
1241 1242 1243 1244 |
.procname = "min_unmapped_ratio", .data = &sysctl_min_unmapped_ratio, .maxlen = sizeof(sysctl_min_unmapped_ratio), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1245 |
.proc_handler = sysctl_min_unmapped_ratio_sysctl_handler, |
9614634fe [PATCH] ZVC/zone_... |
1246 1247 1248 |
.extra1 = &zero, .extra2 = &one_hundred, }, |
0ff38490c [PATCH] zone_recl... |
1249 |
{ |
0ff38490c [PATCH] zone_recl... |
1250 1251 1252 1253 |
.procname = "min_slab_ratio", .data = &sysctl_min_slab_ratio, .maxlen = sizeof(sysctl_min_slab_ratio), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1254 |
.proc_handler = sysctl_min_slab_ratio_sysctl_handler, |
0ff38490c [PATCH] zone_recl... |
1255 1256 1257 |
.extra1 = &zero, .extra2 = &one_hundred, }, |
1743660b9 [PATCH] Zone recl... |
1258 |
#endif |
77461ab33 Make vm statistic... |
1259 1260 |
#ifdef CONFIG_SMP { |
77461ab33 Make vm statistic... |
1261 1262 1263 1264 |
.procname = "stat_interval", .data = &sysctl_stat_interval, .maxlen = sizeof(sysctl_stat_interval), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1265 |
.proc_handler = proc_dointvec_jiffies, |
77461ab33 Make vm statistic... |
1266 1267 |
}, #endif |
6e1415467 NOMMU: Optimise a... |
1268 |
#ifdef CONFIG_MMU |
ed0321895 security: Protect... |
1269 |
{ |
ed0321895 security: Protect... |
1270 |
.procname = "mmap_min_addr", |
788084aba Security/SELinux:... |
1271 1272 |
.data = &dac_mmap_min_addr, .maxlen = sizeof(unsigned long), |
ed0321895 security: Protect... |
1273 |
.mode = 0644, |
6d4561110 sysctl: Drop & in... |
1274 |
.proc_handler = mmap_min_addr_handler, |
ed0321895 security: Protect... |
1275 |
}, |
6e1415467 NOMMU: Optimise a... |
1276 |
#endif |
f0c0b2b80 change zonelist o... |
1277 1278 |
#ifdef CONFIG_NUMA { |
f0c0b2b80 change zonelist o... |
1279 1280 1281 1282 |
.procname = "numa_zonelist_order", .data = &numa_zonelist_order, .maxlen = NUMA_ZONELIST_ORDER_LEN, .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1283 |
.proc_handler = numa_zonelist_order_handler, |
f0c0b2b80 change zonelist o... |
1284 1285 |
}, #endif |
2b8232ce5 minimal build fix... |
1286 |
#if (defined(CONFIG_X86_32) && !defined(CONFIG_UML))|| \ |
5c36e6578 sysctl: Support v... |
1287 |
(defined(CONFIG_SUPERH) && defined(CONFIG_VSYSCALL)) |
e6e5494cb [PATCH] vdso: ran... |
1288 |
{ |
e6e5494cb [PATCH] vdso: ran... |
1289 1290 1291 1292 |
.procname = "vdso_enabled", .data = &vdso_enabled, .maxlen = sizeof(vdso_enabled), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1293 |
.proc_handler = proc_dointvec, |
e6e5494cb [PATCH] vdso: ran... |
1294 1295 1296 |
.extra1 = &zero, }, #endif |
195cf453d mm/page-writeback... |
1297 1298 |
#ifdef CONFIG_HIGHMEM { |
195cf453d mm/page-writeback... |
1299 1300 1301 1302 |
.procname = "highmem_is_dirtyable", .data = &vm_highmem_is_dirtyable, .maxlen = sizeof(vm_highmem_is_dirtyable), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1303 |
.proc_handler = proc_dointvec_minmax, |
195cf453d mm/page-writeback... |
1304 1305 1306 1307 |
.extra1 = &zero, .extra2 = &one, }, #endif |
4be6f6bb6 mm: move the scan... |
1308 |
{ |
4be6f6bb6 mm: move the scan... |
1309 1310 1311 1312 |
.procname = "scan_unevictable_pages", .data = &scan_unevictable_pages, .maxlen = sizeof(scan_unevictable_pages), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1313 |
.proc_handler = scan_unevictable_handler, |
4be6f6bb6 mm: move the scan... |
1314 |
}, |
6a46079cf HWPOISON: The hig... |
1315 1316 |
#ifdef CONFIG_MEMORY_FAILURE { |
6a46079cf HWPOISON: The hig... |
1317 1318 1319 1320 |
.procname = "memory_failure_early_kill", .data = &sysctl_memory_failure_early_kill, .maxlen = sizeof(sysctl_memory_failure_early_kill), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1321 |
.proc_handler = proc_dointvec_minmax, |
6a46079cf HWPOISON: The hig... |
1322 1323 1324 1325 |
.extra1 = &zero, .extra2 = &one, }, { |
6a46079cf HWPOISON: The hig... |
1326 1327 1328 1329 |
.procname = "memory_failure_recovery", .data = &sysctl_memory_failure_recovery, .maxlen = sizeof(sysctl_memory_failure_recovery), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1330 |
.proc_handler = proc_dointvec_minmax, |
6a46079cf HWPOISON: The hig... |
1331 1332 1333 1334 |
.extra1 = &zero, .extra2 = &one, }, #endif |
6fce56ec9 sysctl: Remove re... |
1335 |
{ } |
1da177e4c Linux-2.6.12-rc2 |
1336 |
}; |
2abc26fc6 [PATCH] sysctl: c... |
1337 |
#if defined(CONFIG_BINFMT_MISC) || defined(CONFIG_BINFMT_MISC_MODULE) |
d8217f076 sysctl core: Stop... |
1338 |
static struct ctl_table binfmt_misc_table[] = { |
6fce56ec9 sysctl: Remove re... |
1339 |
{ } |
2abc26fc6 [PATCH] sysctl: c... |
1340 1341 |
}; #endif |
d8217f076 sysctl core: Stop... |
1342 |
static struct ctl_table fs_table[] = { |
1da177e4c Linux-2.6.12-rc2 |
1343 |
{ |
1da177e4c Linux-2.6.12-rc2 |
1344 1345 1346 1347 |
.procname = "inode-nr", .data = &inodes_stat, .maxlen = 2*sizeof(int), .mode = 0444, |
cffbc8aa3 fs: Convert nr_in... |
1348 |
.proc_handler = proc_nr_inodes, |
1da177e4c Linux-2.6.12-rc2 |
1349 1350 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1351 1352 1353 1354 |
.procname = "inode-state", .data = &inodes_stat, .maxlen = 7*sizeof(int), .mode = 0444, |
cffbc8aa3 fs: Convert nr_in... |
1355 |
.proc_handler = proc_nr_inodes, |
1da177e4c Linux-2.6.12-rc2 |
1356 1357 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1358 1359 |
.procname = "file-nr", .data = &files_stat, |
518de9b39 fs: allow for mor... |
1360 |
.maxlen = sizeof(files_stat), |
1da177e4c Linux-2.6.12-rc2 |
1361 |
.mode = 0444, |
6d4561110 sysctl: Drop & in... |
1362 |
.proc_handler = proc_nr_files, |
1da177e4c Linux-2.6.12-rc2 |
1363 1364 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1365 1366 |
.procname = "file-max", .data = &files_stat.max_files, |
518de9b39 fs: allow for mor... |
1367 |
.maxlen = sizeof(files_stat.max_files), |
1da177e4c Linux-2.6.12-rc2 |
1368 |
.mode = 0644, |
518de9b39 fs: allow for mor... |
1369 |
.proc_handler = proc_doulongvec_minmax, |
1da177e4c Linux-2.6.12-rc2 |
1370 1371 |
}, { |
9cfe015aa get rid of NR_OPE... |
1372 1373 1374 1375 |
.procname = "nr_open", .data = &sysctl_nr_open, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1376 |
.proc_handler = proc_dointvec_minmax, |
eceea0b3d [PATCH] avoid mul... |
1377 1378 |
.extra1 = &sysctl_nr_open_min, .extra2 = &sysctl_nr_open_max, |
9cfe015aa get rid of NR_OPE... |
1379 1380 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1381 1382 1383 1384 |
.procname = "dentry-state", .data = &dentry_stat, .maxlen = 6*sizeof(int), .mode = 0444, |
312d3ca85 fs: use percpu co... |
1385 |
.proc_handler = proc_nr_dentry, |
1da177e4c Linux-2.6.12-rc2 |
1386 1387 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1388 1389 1390 1391 |
.procname = "overflowuid", .data = &fs_overflowuid, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1392 |
.proc_handler = proc_dointvec_minmax, |
1da177e4c Linux-2.6.12-rc2 |
1393 1394 1395 1396 |
.extra1 = &minolduid, .extra2 = &maxolduid, }, { |
1da177e4c Linux-2.6.12-rc2 |
1397 1398 1399 1400 |
.procname = "overflowgid", .data = &fs_overflowgid, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1401 |
.proc_handler = proc_dointvec_minmax, |
1da177e4c Linux-2.6.12-rc2 |
1402 1403 1404 |
.extra1 = &minolduid, .extra2 = &maxolduid, }, |
bfcd17a6c Configure out fil... |
1405 |
#ifdef CONFIG_FILE_LOCKING |
1da177e4c Linux-2.6.12-rc2 |
1406 |
{ |
1da177e4c Linux-2.6.12-rc2 |
1407 1408 1409 1410 |
.procname = "leases-enable", .data = &leases_enable, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1411 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
1412 |
}, |
bfcd17a6c Configure out fil... |
1413 |
#endif |
1da177e4c Linux-2.6.12-rc2 |
1414 1415 |
#ifdef CONFIG_DNOTIFY { |
1da177e4c Linux-2.6.12-rc2 |
1416 1417 1418 1419 |
.procname = "dir-notify-enable", .data = &dir_notify_enable, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1420 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
1421 1422 1423 |
}, #endif #ifdef CONFIG_MMU |
bfcd17a6c Configure out fil... |
1424 |
#ifdef CONFIG_FILE_LOCKING |
1da177e4c Linux-2.6.12-rc2 |
1425 |
{ |
1da177e4c Linux-2.6.12-rc2 |
1426 1427 1428 1429 |
.procname = "lease-break-time", .data = &lease_break_time, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1430 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
1431 |
}, |
bfcd17a6c Configure out fil... |
1432 |
#endif |
ebf3f09c6 Configure out AIO... |
1433 |
#ifdef CONFIG_AIO |
1da177e4c Linux-2.6.12-rc2 |
1434 |
{ |
1da177e4c Linux-2.6.12-rc2 |
1435 1436 1437 1438 |
.procname = "aio-nr", .data = &aio_nr, .maxlen = sizeof(aio_nr), .mode = 0444, |
6d4561110 sysctl: Drop & in... |
1439 |
.proc_handler = proc_doulongvec_minmax, |
1da177e4c Linux-2.6.12-rc2 |
1440 1441 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
1442 1443 1444 1445 |
.procname = "aio-max-nr", .data = &aio_max_nr, .maxlen = sizeof(aio_max_nr), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1446 |
.proc_handler = proc_doulongvec_minmax, |
1da177e4c Linux-2.6.12-rc2 |
1447 |
}, |
ebf3f09c6 Configure out AIO... |
1448 |
#endif /* CONFIG_AIO */ |
2d9048e20 [PATCH] inotify (... |
1449 |
#ifdef CONFIG_INOTIFY_USER |
0399cb08c [PATCH] inotify: ... |
1450 |
{ |
0399cb08c [PATCH] inotify: ... |
1451 1452 1453 1454 1455 |
.procname = "inotify", .mode = 0555, .child = inotify_table, }, #endif |
7ef9964e6 epoll: introduce ... |
1456 1457 1458 1459 1460 1461 1462 |
#ifdef CONFIG_EPOLL { .procname = "epoll", .mode = 0555, .child = epoll_table, }, #endif |
1da177e4c Linux-2.6.12-rc2 |
1463 |
#endif |
d6e711448 [PATCH] setuid co... |
1464 |
{ |
d6e711448 [PATCH] setuid co... |
1465 1466 1467 1468 |
.procname = "suid_dumpable", .data = &suid_dumpable, .maxlen = sizeof(int), .mode = 0644, |
6d4561110 sysctl: Drop & in... |
1469 |
.proc_handler = proc_dointvec_minmax, |
8e654fba4 sysctl: fix suid_... |
1470 1471 |
.extra1 = &zero, .extra2 = &two, |
d6e711448 [PATCH] setuid co... |
1472 |
}, |
2abc26fc6 [PATCH] sysctl: c... |
1473 1474 |
#if defined(CONFIG_BINFMT_MISC) || defined(CONFIG_BINFMT_MISC_MODULE) { |
2abc26fc6 [PATCH] sysctl: c... |
1475 1476 1477 1478 1479 |
.procname = "binfmt_misc", .mode = 0555, .child = binfmt_misc_table, }, #endif |
b492e95be pipe: set lower a... |
1480 |
{ |
ff9da691c pipe: change /pro... |
1481 1482 |
.procname = "pipe-max-size", .data = &pipe_max_size, |
b492e95be pipe: set lower a... |
1483 1484 |
.maxlen = sizeof(int), .mode = 0644, |
ff9da691c pipe: change /pro... |
1485 1486 |
.proc_handler = &pipe_proc_fn, .extra1 = &pipe_min_size, |
b492e95be pipe: set lower a... |
1487 |
}, |
6fce56ec9 sysctl: Remove re... |
1488 |
{ } |
1da177e4c Linux-2.6.12-rc2 |
1489 |
}; |
d8217f076 sysctl core: Stop... |
1490 |
static struct ctl_table debug_table[] = { |
ab3c68ee5 [S390] debug: ena... |
1491 |
#if defined(CONFIG_X86) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) || \ |
571d76acd arch/tile: suppor... |
1492 |
defined(CONFIG_S390) || defined(CONFIG_TILE) |
abd4f7505 x86: i386-show-un... |
1493 |
{ |
abd4f7505 x86: i386-show-un... |
1494 1495 1496 1497 1498 1499 1500 |
.procname = "exception-trace", .data = &show_unhandled_signals, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec }, #endif |
b2be84df9 kprobes: Jump opt... |
1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 |
#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... |
1512 |
{ } |
1da177e4c Linux-2.6.12-rc2 |
1513 |
}; |
d8217f076 sysctl core: Stop... |
1514 |
static struct ctl_table dev_table[] = { |
6fce56ec9 sysctl: Remove re... |
1515 |
{ } |
0eeca2830 [PATCH] inotify |
1516 |
}; |
1da177e4c Linux-2.6.12-rc2 |
1517 |
|
330d57fb9 [PATCH] Fix sysct... |
1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 |
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... |
1551 1552 1553 |
} else { /* anything non-NULL; we'll never dereference it */ p->unregistering = ERR_PTR(-EINVAL); |
330d57fb9 [PATCH] Fix sysct... |
1554 1555 1556 1557 1558 1559 1560 |
} /* * 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... |
1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 |
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... |
1572 |
kfree_rcu(head, rcu); |
f7e6ced40 [PATCH] allow del... |
1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 |
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... |
1586 1587 1588 1589 1590 1591 1592 1593 |
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... |
1594 1595 1596 1597 1598 1599 1600 1601 |
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... |
1602 1603 |
static struct list_head * lookup_header_list(struct ctl_table_root *root, struct nsproxy *namespaces) |
805b5d5e0 [PATCH] sysctl: f... |
1604 |
{ |
734550921 [PATCH] beginning... |
1605 1606 |
struct ctl_table_set *set = lookup_header_set(root, namespaces); return &set->list; |
e51b6ba07 sysctl: Infrastru... |
1607 1608 1609 1610 1611 1612 1613 |
} 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... |
1614 1615 |
struct ctl_table_header *head; struct list_head *tmp; |
e51b6ba07 sysctl: Infrastru... |
1616 |
|
805b5d5e0 [PATCH] sysctl: f... |
1617 1618 |
spin_lock(&sysctl_lock); if (prev) { |
e51b6ba07 sysctl: Infrastru... |
1619 |
head = prev; |
805b5d5e0 [PATCH] sysctl: f... |
1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 |
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... |
1633 |
root = head->root; |
805b5d5e0 [PATCH] sysctl: f... |
1634 |
tmp = tmp->next; |
e51b6ba07 sysctl: Infrastru... |
1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 |
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... |
1647 |
} |
e51b6ba07 sysctl: Infrastru... |
1648 |
out: |
805b5d5e0 [PATCH] sysctl: f... |
1649 1650 1651 |
spin_unlock(&sysctl_lock); return NULL; } |
e51b6ba07 sysctl: Infrastru... |
1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 |
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 |
1663 |
/* |
1ff007eb8 [PATCH] sysctl: a... |
1664 |
* sysctl_perm does NOT grant the superuser all rights automatically, because |
1da177e4c Linux-2.6.12-rc2 |
1665 1666 1667 1668 1669 |
* some sysctl variables are readonly even to root. */ static int test_perm(int mode, int op) { |
76aac0e9a CRED: Wrap task c... |
1670 |
if (!current_euid()) |
1da177e4c Linux-2.6.12-rc2 |
1671 1672 1673 |
mode >>= 6; else if (in_egroup_p(0)) mode >>= 3; |
e6305c43e [PATCH] sanitize ... |
1674 |
if ((op & ~mode & (MAY_READ|MAY_WRITE|MAY_EXEC)) == 0) |
1da177e4c Linux-2.6.12-rc2 |
1675 1676 1677 |
return 0; return -EACCES; } |
d7321cd62 sysctl: add the -... |
1678 |
int sysctl_perm(struct ctl_table_root *root, struct ctl_table *table, int op) |
1da177e4c Linux-2.6.12-rc2 |
1679 |
{ |
d7321cd62 sysctl: add the -... |
1680 |
int mode; |
d7321cd62 sysctl: add the -... |
1681 1682 1683 1684 1685 1686 |
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 |
1687 |
} |
d912b0cc1 [PATCH] sysctl: a... |
1688 1689 |
static void sysctl_set_parent(struct ctl_table *parent, struct ctl_table *table) { |
2315ffa0a sysctl: Don't loo... |
1690 |
for (; table->procname; table++) { |
d912b0cc1 [PATCH] sysctl: a... |
1691 1692 1693 1694 1695 1696 1697 1698 1699 |
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... |
1700 |
#ifdef CONFIG_SYSCTL_SYSCALL_CHECK |
b3bd3de66 gcc-4.6: kernel/*... |
1701 |
sysctl_check_table(current->nsproxy, root_table); |
88f458e4b sysctl: allow emb... |
1702 |
#endif |
d912b0cc1 [PATCH] sysctl: a... |
1703 1704 1705 1706 |
return 0; } core_initcall(sysctl_init); |
bfbcf0347 lost sysctl fix |
1707 1708 |
static struct ctl_table *is_branch_in(struct ctl_table *branch, struct ctl_table *table) |
ae7edecc9 [PATCH] sysctl: k... |
1709 1710 1711 1712 1713 1714 |
{ 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 |
1715 |
return NULL; |
ae7edecc9 [PATCH] sysctl: k... |
1716 1717 |
/* ... and nothing else */ |
2315ffa0a sysctl: Don't loo... |
1718 |
if (branch[1].procname) |
bfbcf0347 lost sysctl fix |
1719 |
return NULL; |
ae7edecc9 [PATCH] sysctl: k... |
1720 1721 |
/* table should contain subdirectory with the same name */ |
2315ffa0a sysctl: Don't loo... |
1722 |
for (p = table; p->procname; p++) { |
ae7edecc9 [PATCH] sysctl: k... |
1723 1724 1725 |
if (!p->child) continue; if (p->procname && strcmp(p->procname, s) == 0) |
bfbcf0347 lost sysctl fix |
1726 |
return p; |
ae7edecc9 [PATCH] sysctl: k... |
1727 |
} |
bfbcf0347 lost sysctl fix |
1728 |
return NULL; |
ae7edecc9 [PATCH] sysctl: k... |
1729 1730 1731 1732 1733 1734 |
} /* 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 |
1735 |
struct ctl_table *next; |
ae7edecc9 [PATCH] sysctl: k... |
1736 1737 |
int is_better = 0; int not_in_parent = !p->attached_by; |
bfbcf0347 lost sysctl fix |
1738 |
while ((next = is_branch_in(by, to)) != NULL) { |
ae7edecc9 [PATCH] sysctl: k... |
1739 1740 1741 1742 1743 |
if (by == q->attached_by) is_better = 1; if (to == p->attached_by) not_in_parent = 1; by = by->child; |
bfbcf0347 lost sysctl fix |
1744 |
to = next->child; |
ae7edecc9 [PATCH] sysctl: k... |
1745 1746 1747 1748 1749 1750 1751 1752 |
} if (is_better && not_in_parent) { q->attached_by = by; q->attached_to = to; q->parent = p; } } |
1da177e4c Linux-2.6.12-rc2 |
1753 |
/** |
e51b6ba07 sysctl: Infrastru... |
1754 1755 1756 |
* __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... |
1757 |
* @path: The path to the directory the sysctl table is in. |
1da177e4c Linux-2.6.12-rc2 |
1758 |
* @table: the top-level table structure |
1da177e4c Linux-2.6.12-rc2 |
1759 1760 |
* * Register a sysctl table hierarchy. @table should be a filled in ctl_table |
29e796fd4 sysctl: Add regis... |
1761 |
* array. A completely 0 filled entry terminates the table. |
1da177e4c Linux-2.6.12-rc2 |
1762 |
* |
d8217f076 sysctl core: Stop... |
1763 |
* The members of the &struct ctl_table structure are used as follows: |
1da177e4c Linux-2.6.12-rc2 |
1764 |
* |
1da177e4c Linux-2.6.12-rc2 |
1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 |
* 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 |
1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 |
* 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 |
1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 |
* 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... |
1806 1807 1808 1809 |
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 |
1810 |
{ |
29e796fd4 sysctl: Add regis... |
1811 1812 1813 |
struct ctl_table_header *header; struct ctl_table *new, **prevp; unsigned int n, npath; |
ae7edecc9 [PATCH] sysctl: k... |
1814 |
struct ctl_table_set *set; |
29e796fd4 sysctl: Add regis... |
1815 1816 |
/* Count the path components */ |
2315ffa0a sysctl: Don't loo... |
1817 |
for (npath = 0; path[npath].procname; ++npath) |
29e796fd4 sysctl: Add regis... |
1818 1819 1820 1821 1822 |
; /* * 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... |
1823 |
* for this, the second will be the sentinel (procname == 0). |
29e796fd4 sysctl: Add regis... |
1824 1825 1826 1827 1828 1829 1830 |
* * 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 |
1831 |
return NULL; |
29e796fd4 sysctl: Add regis... |
1832 1833 1834 1835 1836 1837 1838 1839 |
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... |
1840 1841 1842 1843 1844 1845 1846 1847 |
new->mode = 0555; *prevp = new; prevp = &new->child; new += 2; } *prevp = table; |
23eb06de7 sysctl: Remember ... |
1848 |
header->ctl_table_arg = table; |
29e796fd4 sysctl: Add regis... |
1849 1850 1851 1852 |
INIT_LIST_HEAD(&header->ctl_entry); header->used = 0; header->unregistering = NULL; |
e51b6ba07 sysctl: Infrastru... |
1853 |
header->root = root; |
29e796fd4 sysctl: Add regis... |
1854 |
sysctl_set_parent(NULL, header->ctl_table); |
f7e6ced40 [PATCH] allow del... |
1855 |
header->count = 1; |
88f458e4b sysctl: allow emb... |
1856 |
#ifdef CONFIG_SYSCTL_SYSCALL_CHECK |
e51b6ba07 sysctl: Infrastru... |
1857 |
if (sysctl_check_table(namespaces, header->ctl_table)) { |
29e796fd4 sysctl: Add regis... |
1858 |
kfree(header); |
fc6cd25b7 sysctl: Error on ... |
1859 1860 |
return NULL; } |
88f458e4b sysctl: allow emb... |
1861 |
#endif |
330d57fb9 [PATCH] Fix sysct... |
1862 |
spin_lock(&sysctl_lock); |
734550921 [PATCH] beginning... |
1863 |
header->set = lookup_header_set(root, namespaces); |
ae7edecc9 [PATCH] sysctl: k... |
1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 |
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... |
1876 |
list_add_tail(&header->ctl_entry, &header->set->list); |
330d57fb9 [PATCH] Fix sysct... |
1877 |
spin_unlock(&sysctl_lock); |
29e796fd4 sysctl: Add regis... |
1878 1879 1880 1881 1882 |
return header; } /** |
e51b6ba07 sysctl: Infrastru... |
1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 |
* 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... |
1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 |
* 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 |
1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 |
} /** * 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... |
1924 |
might_sleep(); |
f1dad166e Avoid potential N... |
1925 1926 1927 |
if (header == NULL) return; |
330d57fb9 [PATCH] Fix sysct... |
1928 1929 |
spin_lock(&sysctl_lock); start_unregistering(header); |
ae7edecc9 [PATCH] sysctl: k... |
1930 1931 |
if (!--header->parent->count) { WARN_ON(1); |
a95cded32 sysctl,rcu: Conve... |
1932 |
kfree_rcu(header->parent, rcu); |
ae7edecc9 [PATCH] sysctl: k... |
1933 |
} |
f7e6ced40 [PATCH] allow del... |
1934 |
if (!--header->count) |
a95cded32 sysctl,rcu: Conve... |
1935 |
kfree_rcu(header, rcu); |
330d57fb9 [PATCH] Fix sysct... |
1936 |
spin_unlock(&sysctl_lock); |
1da177e4c Linux-2.6.12-rc2 |
1937 |
} |
9043476f7 [PATCH] sanitize ... |
1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 |
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... |
1952 1953 1954 1955 1956 1957 1958 1959 |
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... |
1960 |
#else /* !CONFIG_SYSCTL */ |
d8217f076 sysctl core: Stop... |
1961 |
struct ctl_table_header *register_sysctl_table(struct ctl_table * table) |
b89a81712 [PATCH] sysctl: A... |
1962 1963 1964 |
{ return NULL; } |
29e796fd4 sysctl: Add regis... |
1965 1966 1967 1968 1969 |
struct ctl_table_header *register_sysctl_paths(const struct ctl_path *path, struct ctl_table *table) { return NULL; } |
b89a81712 [PATCH] sysctl: A... |
1970 1971 1972 |
void unregister_sysctl_table(struct ctl_table_header * table) { } |
734550921 [PATCH] beginning... |
1973 1974 1975 1976 1977 |
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... |
1978 1979 1980 |
void sysctl_head_put(struct ctl_table_header *head) { } |
b89a81712 [PATCH] sysctl: A... |
1981 |
#endif /* CONFIG_SYSCTL */ |
1da177e4c Linux-2.6.12-rc2 |
1982 1983 1984 |
/* * /proc/sys support */ |
b89a81712 [PATCH] sysctl: A... |
1985 |
#ifdef CONFIG_PROC_SYSCTL |
1da177e4c Linux-2.6.12-rc2 |
1986 |
|
b1ba4ddde [PATCH] make kern... |
1987 |
static int _proc_do_string(void* data, int maxlen, int write, |
8d65af789 sysctl: remove "s... |
1988 |
void __user *buffer, |
b1ba4ddde [PATCH] make kern... |
1989 |
size_t *lenp, loff_t *ppos) |
1da177e4c Linux-2.6.12-rc2 |
1990 1991 1992 1993 |
{ size_t len; char __user *p; char c; |
8d0608771 [PATCH] _proc_do_... |
1994 1995 |
if (!data || !maxlen || !*lenp) { |
1da177e4c Linux-2.6.12-rc2 |
1996 1997 1998 |
*lenp = 0; return 0; } |
8d0608771 [PATCH] _proc_do_... |
1999 |
|
1da177e4c Linux-2.6.12-rc2 |
2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 |
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... |
2011 2012 2013 |
if (len >= maxlen) len = maxlen-1; if(copy_from_user(data, buffer, len)) |
1da177e4c Linux-2.6.12-rc2 |
2014 |
return -EFAULT; |
f5dd3d6fa [PATCH] proc: sys... |
2015 |
((char *) data)[len] = 0; |
1da177e4c Linux-2.6.12-rc2 |
2016 2017 |
*ppos += *lenp; } else { |
f5dd3d6fa [PATCH] proc: sys... |
2018 2019 2020 |
len = strlen(data); if (len > maxlen) len = maxlen; |
8d0608771 [PATCH] _proc_do_... |
2021 2022 2023 2024 2025 2026 2027 2028 |
if (*ppos > len) { *lenp = 0; return 0; } data += *ppos; len -= *ppos; |
1da177e4c Linux-2.6.12-rc2 |
2029 2030 2031 |
if (len > *lenp) len = *lenp; if (len) |
f5dd3d6fa [PATCH] proc: sys... |
2032 |
if(copy_to_user(buffer, data, len)) |
1da177e4c Linux-2.6.12-rc2 |
2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 |
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... |
2045 2046 2047 2048 |
/** * 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... |
2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 |
* @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... |
2063 |
int proc_dostring(struct ctl_table *table, int write, |
f5dd3d6fa [PATCH] proc: sys... |
2064 2065 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
8d65af789 sysctl: remove "s... |
2066 |
return _proc_do_string(table->data, table->maxlen, write, |
f5dd3d6fa [PATCH] proc: sys... |
2067 2068 |
buffer, lenp, ppos); } |
00b7c3395 sysctl: refactor ... |
2069 2070 2071 2072 2073 2074 2075 2076 |
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_... |
2077 2078 2079 2080 2081 2082 2083 2084 2085 |
static void proc_skip_char(char **buf, size_t *size, const char v) { while (*size) { if (**buf != v) break; (*size)--; (*buf)++; } } |
00b7c3395 sysctl: refactor ... |
2086 2087 |
#define TMPBUFLEN 22 /** |
0fc377bd6 sysctl: fix kerne... |
2088 |
* proc_get_long - reads an ASCII formatted integer from a user buffer |
00b7c3395 sysctl: refactor ... |
2089 |
* |
0fc377bd6 sysctl: fix kerne... |
2090 2091 2092 2093 2094 2095 2096 |
* @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 ... |
2097 |
* |
0fc377bd6 sysctl: fix kerne... |
2098 2099 2100 2101 |
* 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 ... |
2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 |
*/ 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 |
2141 |
|
00b7c3395 sysctl: refactor ... |
2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 |
if (tr && (len < *size)) *tr = *p; *buf += len; *size -= len; return 0; } /** |
0fc377bd6 sysctl: fix kerne... |
2152 |
* proc_put_long - converts an integer to a decimal ASCII formatted string |
00b7c3395 sysctl: refactor ... |
2153 |
* |
0fc377bd6 sysctl: fix kerne... |
2154 2155 2156 2157 |
* @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 ... |
2158 |
* |
0fc377bd6 sysctl: fix kerne... |
2159 2160 |
* In case of success %0 is returned and @buf and @size are updated with * the amount of bytes written. |
00b7c3395 sysctl: refactor ... |
2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 |
*/ 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 |
2191 |
|
00b7c3395 sysctl: refactor ... |
2192 |
static int do_proc_dointvec_conv(bool *negp, unsigned long *lvalp, |
1da177e4c Linux-2.6.12-rc2 |
2193 2194 2195 2196 2197 2198 2199 2200 |
int *valp, int write, void *data) { if (write) { *valp = *negp ? -*lvalp : *lvalp; } else { int val = *valp; if (val < 0) { |
00b7c3395 sysctl: refactor ... |
2201 |
*negp = true; |
1da177e4c Linux-2.6.12-rc2 |
2202 2203 |
*lvalp = (unsigned long)-val; } else { |
00b7c3395 sysctl: refactor ... |
2204 |
*negp = false; |
1da177e4c Linux-2.6.12-rc2 |
2205 2206 2207 2208 2209 |
*lvalp = (unsigned long)val; } } return 0; } |
00b7c3395 sysctl: refactor ... |
2210 2211 |
static const char proc_wspace_sep[] = { ' ', '\t', ' ' }; |
d8217f076 sysctl core: Stop... |
2212 |
static int __do_proc_dointvec(void *tbl_data, struct ctl_table *table, |
8d65af789 sysctl: remove "s... |
2213 |
int write, void __user *buffer, |
fcfbd547b [PATCH] IPC names... |
2214 |
size_t *lenp, loff_t *ppos, |
00b7c3395 sysctl: refactor ... |
2215 |
int (*conv)(bool *negp, unsigned long *lvalp, int *valp, |
1da177e4c Linux-2.6.12-rc2 |
2216 2217 2218 |
int write, void *data), void *data) { |
00b7c3395 sysctl: refactor ... |
2219 2220 2221 2222 |
int *i, vleft, first = 1, err = 0; unsigned long page = 0; size_t left; char *kbuf; |
1da177e4c Linux-2.6.12-rc2 |
2223 |
|
00b7c3395 sysctl: refactor ... |
2224 |
if (!tbl_data || !table->maxlen || !*lenp || (*ppos && !write)) { |
1da177e4c Linux-2.6.12-rc2 |
2225 2226 2227 2228 |
*lenp = 0; return 0; } |
fcfbd547b [PATCH] IPC names... |
2229 |
i = (int *) tbl_data; |
1da177e4c Linux-2.6.12-rc2 |
2230 2231 2232 2233 2234 |
vleft = table->maxlen / sizeof(*i); left = *lenp; if (!conv) conv = do_proc_dointvec_conv; |
00b7c3395 sysctl: refactor ... |
2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 |
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 |
2248 |
for (; left && vleft--; i++, first=0) { |
00b7c3395 sysctl: refactor ... |
2249 2250 |
unsigned long lval; bool neg; |
1da177e4c Linux-2.6.12-rc2 |
2251 |
|
00b7c3395 sysctl: refactor ... |
2252 2253 |
if (write) { left -= proc_skip_spaces(&kbuf); |
1da177e4c Linux-2.6.12-rc2 |
2254 |
|
563b04671 proc_dointvec: wr... |
2255 2256 |
if (!left) break; |
00b7c3395 sysctl: refactor ... |
2257 2258 2259 2260 |
err = proc_get_long(&kbuf, &left, &lval, &neg, proc_wspace_sep, sizeof(proc_wspace_sep), NULL); if (err) |
1da177e4c Linux-2.6.12-rc2 |
2261 |
break; |
00b7c3395 sysctl: refactor ... |
2262 2263 |
if (conv(&neg, &lval, i, 1, data)) { err = -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
2264 |
break; |
00b7c3395 sysctl: refactor ... |
2265 |
} |
1da177e4c Linux-2.6.12-rc2 |
2266 |
} else { |
00b7c3395 sysctl: refactor ... |
2267 2268 2269 2270 |
if (conv(&neg, &lval, i, 0, data)) { err = -EINVAL; break; } |
1da177e4c Linux-2.6.12-rc2 |
2271 |
if (!first) |
00b7c3395 sysctl: refactor ... |
2272 2273 2274 2275 2276 |
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 |
2277 |
break; |
1da177e4c Linux-2.6.12-rc2 |
2278 2279 |
} } |
00b7c3395 sysctl: refactor ... |
2280 2281 2282 |
if (!write && !first && left && !err) err = proc_put_char(&buffer, &left, ' '); |
563b04671 proc_dointvec: wr... |
2283 |
if (write && !err && left) |
00b7c3395 sysctl: refactor ... |
2284 2285 |
left -= proc_skip_spaces(&kbuf); free: |
1da177e4c Linux-2.6.12-rc2 |
2286 |
if (write) { |
00b7c3395 sysctl: refactor ... |
2287 2288 2289 |
free_page(page); if (first) return err ? : -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
2290 |
} |
1da177e4c Linux-2.6.12-rc2 |
2291 2292 |
*lenp -= left; *ppos += *lenp; |
00b7c3395 sysctl: refactor ... |
2293 |
return err; |
1da177e4c Linux-2.6.12-rc2 |
2294 |
} |
8d65af789 sysctl: remove "s... |
2295 |
static int do_proc_dointvec(struct ctl_table *table, int write, |
fcfbd547b [PATCH] IPC names... |
2296 |
void __user *buffer, size_t *lenp, loff_t *ppos, |
00b7c3395 sysctl: refactor ... |
2297 |
int (*conv)(bool *negp, unsigned long *lvalp, int *valp, |
fcfbd547b [PATCH] IPC names... |
2298 2299 2300 |
int write, void *data), void *data) { |
8d65af789 sysctl: remove "s... |
2301 |
return __do_proc_dointvec(table->data, table, write, |
fcfbd547b [PATCH] IPC names... |
2302 2303 |
buffer, lenp, ppos, conv, data); } |
1da177e4c Linux-2.6.12-rc2 |
2304 2305 2306 2307 |
/** * 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 |
2308 2309 2310 2311 2312 2313 2314 2315 2316 |
* @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... |
2317 |
int proc_dointvec(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2318 2319 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
8d65af789 sysctl: remove "s... |
2320 |
return do_proc_dointvec(table,write,buffer,lenp,ppos, |
1da177e4c Linux-2.6.12-rc2 |
2321 2322 |
NULL,NULL); } |
34f5a3989 [PATCH] Add TAINT... |
2323 |
/* |
25ddbb18a Make the taint fl... |
2324 2325 |
* Taint values can only be increased * This means we can safely use a temporary. |
34f5a3989 [PATCH] Add TAINT... |
2326 |
*/ |
8d65af789 sysctl: remove "s... |
2327 |
static int proc_taint(struct ctl_table *table, int write, |
34f5a3989 [PATCH] Add TAINT... |
2328 2329 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
25ddbb18a Make the taint fl... |
2330 2331 2332 |
struct ctl_table t; unsigned long tmptaint = get_taint(); int err; |
34f5a3989 [PATCH] Add TAINT... |
2333 |
|
91fcd412e Allow reading tai... |
2334 |
if (write && !capable(CAP_SYS_ADMIN)) |
34f5a3989 [PATCH] Add TAINT... |
2335 |
return -EPERM; |
25ddbb18a Make the taint fl... |
2336 2337 |
t = *table; t.data = &tmptaint; |
8d65af789 sysctl: remove "s... |
2338 |
err = proc_doulongvec_minmax(&t, write, buffer, lenp, ppos); |
25ddbb18a Make the taint fl... |
2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 |
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... |
2355 |
} |
bfdc0b497 sysctl: restrict ... |
2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 |
#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 |
2366 2367 2368 2369 |
struct do_proc_dointvec_minmax_conv_param { int *min; int *max; }; |
00b7c3395 sysctl: refactor ... |
2370 2371 |
static int do_proc_dointvec_minmax_conv(bool *negp, unsigned long *lvalp, int *valp, |
1da177e4c Linux-2.6.12-rc2 |
2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 |
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 ... |
2384 |
*negp = true; |
1da177e4c Linux-2.6.12-rc2 |
2385 2386 |
*lvalp = (unsigned long)-val; } else { |
00b7c3395 sysctl: refactor ... |
2387 |
*negp = false; |
1da177e4c Linux-2.6.12-rc2 |
2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 |
*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 |
2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 |
* @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... |
2410 |
int proc_dointvec_minmax(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2411 2412 2413 2414 2415 2416 |
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... |
2417 |
return do_proc_dointvec(table, write, buffer, lenp, ppos, |
1da177e4c Linux-2.6.12-rc2 |
2418 2419 |
do_proc_dointvec_minmax_conv, ¶m); } |
d8217f076 sysctl core: Stop... |
2420 |
static int __do_proc_doulongvec_minmax(void *data, struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2421 2422 2423 2424 2425 |
void __user *buffer, size_t *lenp, loff_t *ppos, unsigned long convmul, unsigned long convdiv) { |
00b7c3395 sysctl: refactor ... |
2426 2427 2428 2429 2430 2431 2432 |
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 |
2433 2434 2435 |
*lenp = 0; return 0; } |
00b7c3395 sysctl: refactor ... |
2436 |
|
fcfbd547b [PATCH] IPC names... |
2437 |
i = (unsigned long *) data; |
1da177e4c Linux-2.6.12-rc2 |
2438 2439 2440 2441 |
min = (unsigned long *) table->extra1; max = (unsigned long *) table->extra2; vleft = table->maxlen / sizeof(unsigned long); left = *lenp; |
00b7c3395 sysctl: refactor ... |
2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 |
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... |
2456 |
for (; left && vleft--; i++, first = 0) { |
00b7c3395 sysctl: refactor ... |
2457 |
unsigned long val; |
1da177e4c Linux-2.6.12-rc2 |
2458 |
if (write) { |
00b7c3395 sysctl: refactor ... |
2459 2460 2461 2462 2463 2464 2465 2466 |
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 |
2467 2468 |
break; if (neg) |
1da177e4c Linux-2.6.12-rc2 |
2469 2470 2471 2472 2473 |
continue; if ((min && val < *min) || (max && val > *max)) continue; *i = val; } else { |
00b7c3395 sysctl: refactor ... |
2474 |
val = convdiv * (*i) / convmul; |
1da177e4c Linux-2.6.12-rc2 |
2475 |
if (!first) |
00b7c3395 sysctl: refactor ... |
2476 2477 2478 2479 |
err = proc_put_char(&buffer, &left, '\t'); err = proc_put_long(&buffer, &left, val, false); if (err) break; |
1da177e4c Linux-2.6.12-rc2 |
2480 2481 |
} } |
00b7c3395 sysctl: refactor ... |
2482 2483 2484 2485 2486 2487 |
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 |
2488 |
if (write) { |
00b7c3395 sysctl: refactor ... |
2489 2490 2491 |
free_page(page); if (first) return err ? : -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
2492 |
} |
1da177e4c Linux-2.6.12-rc2 |
2493 2494 |
*lenp -= left; *ppos += *lenp; |
00b7c3395 sysctl: refactor ... |
2495 |
return err; |
1da177e4c Linux-2.6.12-rc2 |
2496 |
} |
d8217f076 sysctl core: Stop... |
2497 |
static int do_proc_doulongvec_minmax(struct ctl_table *table, int write, |
fcfbd547b [PATCH] IPC names... |
2498 2499 2500 2501 2502 2503 |
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... |
2504 |
buffer, lenp, ppos, convmul, convdiv); |
fcfbd547b [PATCH] IPC names... |
2505 |
} |
1da177e4c Linux-2.6.12-rc2 |
2506 2507 2508 2509 |
/** * 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 |
2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 |
* @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... |
2522 |
int proc_doulongvec_minmax(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2523 2524 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
8d65af789 sysctl: remove "s... |
2525 |
return do_proc_doulongvec_minmax(table, write, buffer, lenp, ppos, 1l, 1l); |
1da177e4c Linux-2.6.12-rc2 |
2526 2527 2528 2529 2530 2531 |
} /** * 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 |
2532 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. 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... |
2545 |
int proc_doulongvec_ms_jiffies_minmax(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2546 2547 2548 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
8d65af789 sysctl: remove "s... |
2549 |
return do_proc_doulongvec_minmax(table, write, buffer, |
1da177e4c Linux-2.6.12-rc2 |
2550 2551 |
lenp, ppos, HZ, 1000l); } |
00b7c3395 sysctl: refactor ... |
2552 |
static int do_proc_dointvec_jiffies_conv(bool *negp, unsigned long *lvalp, |
1da177e4c Linux-2.6.12-rc2 |
2553 2554 2555 2556 |
int *valp, int write, void *data) { if (write) { |
cba9f33d1 [PATCH] Range che... |
2557 2558 |
if (*lvalp > LONG_MAX / HZ) return 1; |
1da177e4c Linux-2.6.12-rc2 |
2559 2560 2561 2562 2563 |
*valp = *negp ? -(*lvalp*HZ) : (*lvalp*HZ); } else { int val = *valp; unsigned long lval; if (val < 0) { |
00b7c3395 sysctl: refactor ... |
2564 |
*negp = true; |
1da177e4c Linux-2.6.12-rc2 |
2565 2566 |
lval = (unsigned long)-val; } else { |
00b7c3395 sysctl: refactor ... |
2567 |
*negp = false; |
1da177e4c Linux-2.6.12-rc2 |
2568 2569 2570 2571 2572 2573 |
lval = (unsigned long)val; } *lvalp = lval / HZ; } return 0; } |
00b7c3395 sysctl: refactor ... |
2574 |
static int do_proc_dointvec_userhz_jiffies_conv(bool *negp, unsigned long *lvalp, |
1da177e4c Linux-2.6.12-rc2 |
2575 2576 2577 2578 |
int *valp, int write, void *data) { if (write) { |
cba9f33d1 [PATCH] Range che... |
2579 2580 |
if (USER_HZ < HZ && *lvalp > (LONG_MAX / HZ) * USER_HZ) return 1; |
1da177e4c Linux-2.6.12-rc2 |
2581 2582 2583 2584 2585 |
*valp = clock_t_to_jiffies(*negp ? -*lvalp : *lvalp); } else { int val = *valp; unsigned long lval; if (val < 0) { |
00b7c3395 sysctl: refactor ... |
2586 |
*negp = true; |
1da177e4c Linux-2.6.12-rc2 |
2587 2588 |
lval = (unsigned long)-val; } else { |
00b7c3395 sysctl: refactor ... |
2589 |
*negp = false; |
1da177e4c Linux-2.6.12-rc2 |
2590 2591 2592 2593 2594 2595 |
lval = (unsigned long)val; } *lvalp = jiffies_to_clock_t(lval); } return 0; } |
00b7c3395 sysctl: refactor ... |
2596 |
static int do_proc_dointvec_ms_jiffies_conv(bool *negp, unsigned long *lvalp, |
1da177e4c Linux-2.6.12-rc2 |
2597 2598 2599 2600 2601 2602 2603 2604 2605 |
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 ... |
2606 |
*negp = true; |
1da177e4c Linux-2.6.12-rc2 |
2607 2608 |
lval = (unsigned long)-val; } else { |
00b7c3395 sysctl: refactor ... |
2609 |
*negp = false; |
1da177e4c Linux-2.6.12-rc2 |
2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 |
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 |
2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 |
* @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... |
2632 |
int proc_dointvec_jiffies(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2633 2634 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
8d65af789 sysctl: remove "s... |
2635 |
return do_proc_dointvec(table,write,buffer,lenp,ppos, |
1da177e4c Linux-2.6.12-rc2 |
2636 2637 2638 2639 2640 2641 2642 |
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 |
2643 2644 |
* @buffer: the user buffer * @lenp: the size of the user buffer |
1e5d53314 [PATCH] more kern... |
2645 |
* @ppos: pointer to the file position |
1da177e4c Linux-2.6.12-rc2 |
2646 2647 2648 2649 2650 2651 2652 2653 |
* * 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... |
2654 |
int proc_dointvec_userhz_jiffies(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2655 2656 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
8d65af789 sysctl: remove "s... |
2657 |
return do_proc_dointvec(table,write,buffer,lenp,ppos, |
1da177e4c Linux-2.6.12-rc2 |
2658 2659 2660 2661 2662 2663 2664 |
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 |
2665 2666 |
* @buffer: the user buffer * @lenp: the size of the user buffer |
67be2dd1b [PATCH] DocBook: ... |
2667 2668 |
* @ppos: file position * @ppos: the current position in the file |
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 1/1000 seconds, and * are converted into jiffies. * * Returns 0 on success. */ |
8d65af789 sysctl: remove "s... |
2677 |
int proc_dointvec_ms_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 |
do_proc_dointvec_ms_jiffies_conv, NULL); } |
8d65af789 sysctl: remove "s... |
2683 |
static int proc_do_cad_pid(struct ctl_table *table, int write, |
9ec52099e [PATCH] replace c... |
2684 2685 2686 2687 2688 |
void __user *buffer, size_t *lenp, loff_t *ppos) { struct pid *new_pid; pid_t tmp; int r; |
6c5f3e7b4 Pidns: make full ... |
2689 |
tmp = pid_vnr(cad_pid); |
9ec52099e [PATCH] replace c... |
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|
8d65af789 sysctl: remove "s... |
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r = __do_proc_dointvec(&tmp, table, write, buffer, |
9ec52099e [PATCH] replace c... |
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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_... |
2703 2704 2705 2706 2707 2708 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 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 |
/** * 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... |
2858 |
#else /* CONFIG_PROC_SYSCTL */ |
1da177e4c Linux-2.6.12-rc2 |
2859 |
|
8d65af789 sysctl: remove "s... |
2860 |
int proc_dostring(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2861 2862 2863 2864 |
void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
8d65af789 sysctl: remove "s... |
2865 |
int proc_dointvec(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2866 |
void __user *buffer, size_t *lenp, loff_t *ppos) |
1da177e4c Linux-2.6.12-rc2 |
2867 2868 2869 |
{ return -ENOSYS; } |
8d65af789 sysctl: remove "s... |
2870 |
int proc_dointvec_minmax(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2871 2872 2873 2874 |
void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
8d65af789 sysctl: remove "s... |
2875 |
int proc_dointvec_jiffies(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2876 2877 2878 2879 |
void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
8d65af789 sysctl: remove "s... |
2880 |
int proc_dointvec_userhz_jiffies(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2881 2882 2883 2884 |
void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
8d65af789 sysctl: remove "s... |
2885 |
int proc_dointvec_ms_jiffies(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2886 2887 2888 2889 |
void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
8d65af789 sysctl: remove "s... |
2890 |
int proc_doulongvec_minmax(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
2891 2892 2893 2894 |
void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
d8217f076 sysctl core: Stop... |
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int proc_doulongvec_ms_jiffies_minmax(struct ctl_table *table, int write, |
1da177e4c Linux-2.6.12-rc2 |
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void __user *buffer, size_t *lenp, loff_t *ppos) { return -ENOSYS; } |
556105000 sysctl: fix #ifde... |
2901 |
#endif /* CONFIG_PROC_SYSCTL */ |
1da177e4c Linux-2.6.12-rc2 |
2902 |
|
1da177e4c Linux-2.6.12-rc2 |
2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 |
/* * 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... |
2916 |
EXPORT_SYMBOL(register_sysctl_paths); |
1da177e4c Linux-2.6.12-rc2 |
2917 |
EXPORT_SYMBOL(unregister_sysctl_table); |