Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 2337 insertions, 0 deletions

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
new file mode 100644
index 00000000000..79dbd93bd69
--- /dev/null
+++ b/kernel/sysctl.c
@@ -0,0 +1,2337 @@
+/*
+ * 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
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/slab.h>
+#include <linux/sysctl.h>
+#include <linux/proc_fs.h>
+#include <linux/ctype.h>
+#include <linux/utsname.h>
+#include <linux/capability.h>
+#include <linux/smp_lock.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/sysrq.h>
+#include <linux/highuid.h>
+#include <linux/writeback.h>
+#include <linux/hugetlb.h>
+#include <linux/security.h>
+#include <linux/initrd.h>
+#include <linux/times.h>
+#include <linux/limits.h>
+#include <linux/dcache.h>
+#include <linux/syscalls.h>
+
+#include <asm/uaccess.h>
+#include <asm/processor.h>
+
+#ifdef CONFIG_ROOT_NFS
+#include <linux/nfs_fs.h>
+#endif
+
+#if defined(CONFIG_SYSCTL)
+
+/* External variables not in a header file. */
+extern int C_A_D;
+extern int sysctl_overcommit_memory;
+extern int sysctl_overcommit_ratio;
+extern int max_threads;
+extern int sysrq_enabled;
+extern int core_uses_pid;
+extern char core_pattern[];
+extern int cad_pid;
+extern int pid_max;
+extern int min_free_kbytes;
+extern int printk_ratelimit_jiffies;
+extern int printk_ratelimit_burst;
+extern int pid_max_min, pid_max_max;
+
+#if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86)
+int unknown_nmi_panic;
+extern int proc_unknown_nmi_panic(ctl_table *, int, struct file *,
+				  void __user *, size_t *, loff_t *);
+#endif
+
+/* this is needed for the proc_dointvec_minmax for [fs_]overflow UID and GID */
+static int maxolduid = 65535;
+static int minolduid;
+
+static int ngroups_max = NGROUPS_MAX;
+
+#ifdef CONFIG_KMOD
+extern char modprobe_path[];
+#endif
+#ifdef CONFIG_HOTPLUG
+extern char hotplug_path[];
+#endif
+#ifdef CONFIG_CHR_DEV_SG
+extern int sg_big_buff;
+#endif
+#ifdef CONFIG_SYSVIPC
+extern size_t shm_ctlmax;
+extern size_t shm_ctlall;
+extern int shm_ctlmni;
+extern int msg_ctlmax;
+extern int msg_ctlmnb;
+extern int msg_ctlmni;
+extern int sem_ctls[];
+#endif
+
+#ifdef __sparc__
+extern char reboot_command [];
+extern int stop_a_enabled;
+extern int scons_pwroff;
+#endif
+
+#ifdef __hppa__
+extern int pwrsw_enabled;
+extern int unaligned_enabled;
+#endif
+
+#ifdef CONFIG_ARCH_S390
+#ifdef CONFIG_MATHEMU
+extern int sysctl_ieee_emulation_warnings;
+#endif
+extern int sysctl_userprocess_debug;
+#endif
+
+extern int sysctl_hz_timer;
+
+#ifdef CONFIG_BSD_PROCESS_ACCT
+extern int acct_parm[];
+#endif
+
+int randomize_va_space = 1;
+
+static int parse_table(int __user *, int, void __user *, size_t __user *, void __user *, size_t,
+		       ctl_table *, void **);
+static int proc_doutsstring(ctl_table *table, int write, struct file *filp,
+		  void __user *buffer, size_t *lenp, loff_t *ppos);
+
+static ctl_table root_table[];
+static struct ctl_table_header root_table_header =
+	{ root_table, LIST_HEAD_INIT(root_table_header.ctl_entry) };
+
+static ctl_table kern_table[];
+static ctl_table vm_table[];
+#ifdef CONFIG_NET
+extern ctl_table net_table[];
+#endif
+static ctl_table proc_table[];
+static ctl_table fs_table[];
+static ctl_table debug_table[];
+static ctl_table dev_table[];
+extern ctl_table random_table[];
+#ifdef CONFIG_UNIX98_PTYS
+extern ctl_table pty_table[];
+#endif
+
+#ifdef HAVE_ARCH_PICK_MMAP_LAYOUT
+int sysctl_legacy_va_layout;
+#endif
+
+/* /proc declarations: */
+
+#ifdef CONFIG_PROC_FS
+
+static ssize_t proc_readsys(struct file *, char __user *, size_t, loff_t *);
+static ssize_t proc_writesys(struct file *, const char __user *, size_t, loff_t *);
+static int proc_opensys(struct inode *, struct file *);
+
+struct file_operations proc_sys_file_operations = {
+	.open		= proc_opensys,
+	.read		= proc_readsys,
+	.write		= proc_writesys,
+};
+
+extern struct proc_dir_entry *proc_sys_root;
+
+static void register_proc_table(ctl_table *, struct proc_dir_entry *);
+static void unregister_proc_table(ctl_table *, struct proc_dir_entry *);
+#endif
+
+/* The default sysctl tables: */
+
+static ctl_table root_table[] = {
+	{
+		.ctl_name	= CTL_KERN,
+		.procname	= "kernel",
+		.mode		= 0555,
+		.child		= kern_table,
+	},
+	{
+		.ctl_name	= CTL_VM,
+		.procname	= "vm",
+		.mode		= 0555,
+		.child		= vm_table,
+	},
+#ifdef CONFIG_NET
+	{
+		.ctl_name	= CTL_NET,
+		.procname	= "net",
+		.mode		= 0555,
+		.child		= net_table,
+	},
+#endif
+	{
+		.ctl_name	= CTL_PROC,
+		.procname	= "proc",
+		.mode		= 0555,
+		.child		= proc_table,
+	},
+	{
+		.ctl_name	= CTL_FS,
+		.procname	= "fs",
+		.mode		= 0555,
+		.child		= fs_table,
+	},
+	{
+		.ctl_name	= CTL_DEBUG,
+		.procname	= "debug",
+		.mode		= 0555,
+		.child		= debug_table,
+	},
+	{
+		.ctl_name	= CTL_DEV,
+		.procname	= "dev",
+		.mode		= 0555,
+		.child		= dev_table,
+	},
+	{ .ctl_name = 0 }
+};
+
+static ctl_table kern_table[] = {
+	{
+		.ctl_name	= KERN_OSTYPE,
+		.procname	= "ostype",
+		.data		= system_utsname.sysname,
+		.maxlen		= sizeof(system_utsname.sysname),
+		.mode		= 0444,
+		.proc_handler	= &proc_doutsstring,
+		.strategy	= &sysctl_string,
+	},
+	{
+		.ctl_name	= KERN_OSRELEASE,
+		.procname	= "osrelease",
+		.data		= system_utsname.release,
+		.maxlen		= sizeof(system_utsname.release),
+		.mode		= 0444,
+		.proc_handler	= &proc_doutsstring,
+		.strategy	= &sysctl_string,
+	},
+	{
+		.ctl_name	= KERN_VERSION,
+		.procname	= "version",
+		.data		= system_utsname.version,
+		.maxlen		= sizeof(system_utsname.version),
+		.mode		= 0444,
+		.proc_handler	= &proc_doutsstring,
+		.strategy	= &sysctl_string,
+	},
+	{
+		.ctl_name	= KERN_NODENAME,
+		.procname	= "hostname",
+		.data		= system_utsname.nodename,
+		.maxlen		= sizeof(system_utsname.nodename),
+		.mode		= 0644,
+		.proc_handler	= &proc_doutsstring,
+		.strategy	= &sysctl_string,
+	},
+	{
+		.ctl_name	= KERN_DOMAINNAME,
+		.procname	= "domainname",
+		.data		= system_utsname.domainname,
+		.maxlen		= sizeof(system_utsname.domainname),
+		.mode		= 0644,
+		.proc_handler	= &proc_doutsstring,
+		.strategy	= &sysctl_string,
+	},
+	{
+		.ctl_name	= KERN_PANIC,
+		.procname	= "panic",
+		.data		= &panic_timeout,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= KERN_CORE_USES_PID,
+		.procname	= "core_uses_pid",
+		.data		= &core_uses_pid,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= KERN_CORE_PATTERN,
+		.procname	= "core_pattern",
+		.data		= core_pattern,
+		.maxlen		= 64,
+		.mode		= 0644,
+		.proc_handler	= &proc_dostring,
+		.strategy	= &sysctl_string,
+	},
+	{
+		.ctl_name	= KERN_TAINTED,
+		.procname	= "tainted",
+		.data		= &tainted,
+		.maxlen		= sizeof(int),
+		.mode		= 0444,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= KERN_CAP_BSET,
+		.procname	= "cap-bound",
+		.data		= &cap_bset,
+		.maxlen		= sizeof(kernel_cap_t),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec_bset,
+	},
+#ifdef CONFIG_BLK_DEV_INITRD
+	{
+		.ctl_name	= KERN_REALROOTDEV,
+		.procname	= "real-root-dev",
+		.data		= &real_root_dev,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef __sparc__
+	{
+		.ctl_name	= KERN_SPARC_REBOOT,
+		.procname	= "reboot-cmd",
+		.data		= reboot_command,
+		.maxlen		= 256,
+		.mode		= 0644,
+		.proc_handler	= &proc_dostring,
+		.strategy	= &sysctl_string,
+	},
+	{
+		.ctl_name	= KERN_SPARC_STOP_A,
+		.procname	= "stop-a",
+		.data		= &stop_a_enabled,
+		.maxlen		= sizeof (int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= KERN_SPARC_SCONS_PWROFF,
+		.procname	= "scons-poweroff",
+		.data		= &scons_pwroff,
+		.maxlen		= sizeof (int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef __hppa__
+	{
+		.ctl_name	= KERN_HPPA_PWRSW,
+		.procname	= "soft-power",
+		.data		= &pwrsw_enabled,
+		.maxlen		= sizeof (int),
+	 	.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= KERN_HPPA_UNALIGNED,
+		.procname	= "unaligned-trap",
+		.data		= &unaligned_enabled,
+		.maxlen		= sizeof (int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+	{
+		.ctl_name	= KERN_CTLALTDEL,
+		.procname	= "ctrl-alt-del",
+		.data		= &C_A_D,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= KERN_PRINTK,
+		.procname	= "printk",
+		.data		= &console_loglevel,
+		.maxlen		= 4*sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+#ifdef CONFIG_KMOD
+	{
+		.ctl_name	= KERN_MODPROBE,
+		.procname	= "modprobe",
+		.data		= &modprobe_path,
+		.maxlen		= KMOD_PATH_LEN,
+		.mode		= 0644,
+		.proc_handler	= &proc_dostring,
+		.strategy	= &sysctl_string,
+	},
+#endif
+#ifdef CONFIG_HOTPLUG
+	{
+		.ctl_name	= KERN_HOTPLUG,
+		.procname	= "hotplug",
+		.data		= &hotplug_path,
+		.maxlen		= HOTPLUG_PATH_LEN,
+		.mode		= 0644,
+		.proc_handler	= &proc_dostring,
+		.strategy	= &sysctl_string,
+	},
+#endif
+#ifdef CONFIG_CHR_DEV_SG
+	{
+		.ctl_name	= KERN_SG_BIG_BUFF,
+		.procname	= "sg-big-buff",
+		.data		= &sg_big_buff,
+		.maxlen		= sizeof (int),
+		.mode		= 0444,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_BSD_PROCESS_ACCT
+	{
+		.ctl_name	= KERN_ACCT,
+		.procname	= "acct",
+		.data		= &acct_parm,
+		.maxlen		= 3*sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_SYSVIPC
+	{
+		.ctl_name	= KERN_SHMMAX,
+		.procname	= "shmmax",
+		.data		= &shm_ctlmax,
+		.maxlen		= sizeof (size_t),
+		.mode		= 0644,
+		.proc_handler	= &proc_doulongvec_minmax,
+	},
+	{
+		.ctl_name	= KERN_SHMALL,
+		.procname	= "shmall",
+		.data		= &shm_ctlall,
+		.maxlen		= sizeof (size_t),
+		.mode		= 0644,
+		.proc_handler	= &proc_doulongvec_minmax,
+	},
+	{
+		.ctl_name	= KERN_SHMMNI,
+		.procname	= "shmmni",
+		.data		= &shm_ctlmni,
+		.maxlen		= sizeof (int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= KERN_MSGMAX,
+		.procname	= "msgmax",
+		.data		= &msg_ctlmax,
+		.maxlen		= sizeof (int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= KERN_MSGMNI,
+		.procname	= "msgmni",
+		.data		= &msg_ctlmni,
+		.maxlen		= sizeof (int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= KERN_MSGMNB,
+		.procname	=  "msgmnb",
+		.data		= &msg_ctlmnb,
+		.maxlen		= sizeof (int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= KERN_SEM,
+		.procname	= "sem",
+		.data		= &sem_ctls,
+		.maxlen		= 4*sizeof (int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_MAGIC_SYSRQ
+	{
+		.ctl_name	= KERN_SYSRQ,
+		.procname	= "sysrq",
+		.data		= &sysrq_enabled,
+		.maxlen		= sizeof (int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+	{
+		.ctl_name	= KERN_CADPID,
+		.procname	= "cad_pid",
+		.data		= &cad_pid,
+		.maxlen		= sizeof (int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= KERN_MAX_THREADS,
+		.procname	= "threads-max",
+		.data		= &max_threads,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= KERN_RANDOM,
+		.procname	= "random",
+		.mode		= 0555,
+		.child		= random_table,
+	},
+#ifdef CONFIG_UNIX98_PTYS
+	{
+		.ctl_name	= KERN_PTY,
+		.procname	= "pty",
+		.mode		= 0555,
+		.child		= pty_table,
+	},
+#endif
+	{
+		.ctl_name	= KERN_OVERFLOWUID,
+		.procname	= "overflowuid",
+		.data		= &overflowuid,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec_minmax,
+		.strategy	= &sysctl_intvec,
+		.extra1		= &minolduid,
+		.extra2		= &maxolduid,
+	},
+	{
+		.ctl_name	= KERN_OVERFLOWGID,
+		.procname	= "overflowgid",
+		.data		= &overflowgid,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec_minmax,
+		.strategy	= &sysctl_intvec,
+		.extra1		= &minolduid,
+		.extra2		= &maxolduid,
+	},
+#ifdef CONFIG_ARCH_S390
+#ifdef CONFIG_MATHEMU
+	{
+		.ctl_name	= KERN_IEEE_EMULATION_WARNINGS,
+		.procname	= "ieee_emulation_warnings",
+		.data		= &sysctl_ieee_emulation_warnings,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_NO_IDLE_HZ
+	{
+		.ctl_name       = KERN_HZ_TIMER,
+		.procname       = "hz_timer",
+		.data           = &sysctl_hz_timer,
+		.maxlen         = sizeof(int),
+		.mode           = 0644,
+		.proc_handler   = &proc_dointvec,
+	},
+#endif
+	{
+		.ctl_name	= KERN_S390_USER_DEBUG_LOGGING,
+		.procname	= "userprocess_debug",
+		.data		= &sysctl_userprocess_debug,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+	{
+		.ctl_name	= KERN_PIDMAX,
+		.procname	= "pid_max",
+		.data		= &pid_max,
+		.maxlen		= sizeof (int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec_minmax,
+		.strategy	= sysctl_intvec,
+		.extra1		= &pid_max_min,
+		.extra2		= &pid_max_max,
+	},
+	{
+		.ctl_name	= KERN_PANIC_ON_OOPS,
+		.procname	= "panic_on_oops",
+		.data		= &panic_on_oops,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= KERN_PRINTK_RATELIMIT,
+		.procname	= "printk_ratelimit",
+		.data		= &printk_ratelimit_jiffies,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec_jiffies,
+		.strategy	= &sysctl_jiffies,
+	},
+	{
+		.ctl_name	= KERN_PRINTK_RATELIMIT_BURST,
+		.procname	= "printk_ratelimit_burst",
+		.data		= &printk_ratelimit_burst,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= KERN_NGROUPS_MAX,
+		.procname	= "ngroups_max",
+		.data		= &ngroups_max,
+		.maxlen		= sizeof (int),
+		.mode		= 0444,
+		.proc_handler	= &proc_dointvec,
+	},
+#if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86)
+	{
+		.ctl_name       = KERN_UNKNOWN_NMI_PANIC,
+		.procname       = "unknown_nmi_panic",
+		.data           = &unknown_nmi_panic,
+		.maxlen         = sizeof (int),
+		.mode           = 0644,
+		.proc_handler   = &proc_unknown_nmi_panic,
+	},
+#endif
+#if defined(CONFIG_X86)
+	{
+		.ctl_name	= KERN_BOOTLOADER_TYPE,
+		.procname	= "bootloader_type",
+		.data		= &bootloader_type,
+		.maxlen		= sizeof (int),
+		.mode		= 0444,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+	{
+		.ctl_name	= KERN_RANDOMIZE,
+		.procname	= "randomize_va_space",
+		.data		= &randomize_va_space,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+
+	{ .ctl_name = 0 }
+};
+
+/* Constants for minimum and maximum testing in vm_table.
+   We use these as one-element integer vectors. */
+static int zero;
+static int one_hundred = 100;
+
+
+static ctl_table vm_table[] = {
+	{
+		.ctl_name	= VM_OVERCOMMIT_MEMORY,
+		.procname	= "overcommit_memory",
+		.data		= &sysctl_overcommit_memory,
+		.maxlen		= sizeof(sysctl_overcommit_memory),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= VM_OVERCOMMIT_RATIO,
+		.procname	= "overcommit_ratio",
+		.data		= &sysctl_overcommit_ratio,
+		.maxlen		= sizeof(sysctl_overcommit_ratio),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= VM_PAGE_CLUSTER,
+		.procname	= "page-cluster", 
+		.data		= &page_cluster,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= VM_DIRTY_BACKGROUND,
+		.procname	= "dirty_background_ratio",
+		.data		= &dirty_background_ratio,
+		.maxlen		= sizeof(dirty_background_ratio),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec_minmax,
+		.strategy	= &sysctl_intvec,
+		.extra1		= &zero,
+		.extra2		= &one_hundred,
+	},
+	{
+		.ctl_name	= VM_DIRTY_RATIO,
+		.procname	= "dirty_ratio",
+		.data		= &vm_dirty_ratio,
+		.maxlen		= sizeof(vm_dirty_ratio),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec_minmax,
+		.strategy	= &sysctl_intvec,
+		.extra1		= &zero,
+		.extra2		= &one_hundred,
+	},
+	{
+		.ctl_name	= VM_DIRTY_WB_CS,
+		.procname	= "dirty_writeback_centisecs",
+		.data		= &dirty_writeback_centisecs,
+		.maxlen		= sizeof(dirty_writeback_centisecs),
+		.mode		= 0644,
+		.proc_handler	= &dirty_writeback_centisecs_handler,
+	},
+	{
+		.ctl_name	= VM_DIRTY_EXPIRE_CS,
+		.procname	= "dirty_expire_centisecs",
+		.data		= &dirty_expire_centisecs,
+		.maxlen		= sizeof(dirty_expire_centisecs),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= VM_NR_PDFLUSH_THREADS,
+		.procname	= "nr_pdflush_threads",
+		.data		= &nr_pdflush_threads,
+		.maxlen		= sizeof nr_pdflush_threads,
+		.mode		= 0444 /* read-only*/,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= VM_SWAPPINESS,
+		.procname	= "swappiness",
+		.data		= &vm_swappiness,
+		.maxlen		= sizeof(vm_swappiness),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec_minmax,
+		.strategy	= &sysctl_intvec,
+		.extra1		= &zero,
+		.extra2		= &one_hundred,
+	},
+#ifdef CONFIG_HUGETLB_PAGE
+	 {
+		.ctl_name	= VM_HUGETLB_PAGES,
+		.procname	= "nr_hugepages",
+		.data		= &max_huge_pages,
+		.maxlen		= sizeof(unsigned long),
+		.mode		= 0644,
+		.proc_handler	= &hugetlb_sysctl_handler,
+		.extra1		= (void *)&hugetlb_zero,
+		.extra2		= (void *)&hugetlb_infinity,
+	 },
+	 {
+		.ctl_name	= VM_HUGETLB_GROUP,
+		.procname	= "hugetlb_shm_group",
+		.data		= &sysctl_hugetlb_shm_group,
+		.maxlen		= sizeof(gid_t),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	 },
+#endif
+	{
+		.ctl_name	= VM_LOWMEM_RESERVE_RATIO,
+		.procname	= "lowmem_reserve_ratio",
+		.data		= &sysctl_lowmem_reserve_ratio,
+		.maxlen		= sizeof(sysctl_lowmem_reserve_ratio),
+		.mode		= 0644,
+		.proc_handler	= &lowmem_reserve_ratio_sysctl_handler,
+		.strategy	= &sysctl_intvec,
+	},
+	{
+		.ctl_name	= VM_MIN_FREE_KBYTES,
+		.procname	= "min_free_kbytes",
+		.data		= &min_free_kbytes,
+		.maxlen		= sizeof(min_free_kbytes),
+		.mode		= 0644,
+		.proc_handler	= &min_free_kbytes_sysctl_handler,
+		.strategy	= &sysctl_intvec,
+		.extra1		= &zero,
+	},
+#ifdef CONFIG_MMU
+	{
+		.ctl_name	= VM_MAX_MAP_COUNT,
+		.procname	= "max_map_count",
+		.data		= &sysctl_max_map_count,
+		.maxlen		= sizeof(sysctl_max_map_count),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec
+	},
+#endif
+	{
+		.ctl_name	= VM_LAPTOP_MODE,
+		.procname	= "laptop_mode",
+		.data		= &laptop_mode,
+		.maxlen		= sizeof(laptop_mode),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+		.strategy	= &sysctl_intvec,
+		.extra1		= &zero,
+	},
+	{
+		.ctl_name	= VM_BLOCK_DUMP,
+		.procname	= "block_dump",
+		.data		= &block_dump,
+		.maxlen		= sizeof(block_dump),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+		.strategy	= &sysctl_intvec,
+		.extra1		= &zero,
+	},
+	{
+		.ctl_name	= VM_VFS_CACHE_PRESSURE,
+		.procname	= "vfs_cache_pressure",
+		.data		= &sysctl_vfs_cache_pressure,
+		.maxlen		= sizeof(sysctl_vfs_cache_pressure),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+		.strategy	= &sysctl_intvec,
+		.extra1		= &zero,
+	},
+#ifdef HAVE_ARCH_PICK_MMAP_LAYOUT
+	{
+		.ctl_name	= VM_LEGACY_VA_LAYOUT,
+		.procname	= "legacy_va_layout",
+		.data		= &sysctl_legacy_va_layout,
+		.maxlen		= sizeof(sysctl_legacy_va_layout),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+		.strategy	= &sysctl_intvec,
+		.extra1		= &zero,
+	},
+#endif
+#ifdef CONFIG_SWAP
+	{
+		.ctl_name	= VM_SWAP_TOKEN_TIMEOUT,
+		.procname	= "swap_token_timeout",
+		.data		= &swap_token_default_timeout,
+		.maxlen		= sizeof(swap_token_default_timeout),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec_jiffies,
+		.strategy	= &sysctl_jiffies,
+	},
+#endif
+	{ .ctl_name = 0 }
+};
+
+static ctl_table proc_table[] = {
+	{ .ctl_name = 0 }
+};
+
+static ctl_table fs_table[] = {
+	{
+		.ctl_name	= FS_NRINODE,
+		.procname	= "inode-nr",
+		.data		= &inodes_stat,
+		.maxlen		= 2*sizeof(int),
+		.mode		= 0444,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= FS_STATINODE,
+		.procname	= "inode-state",
+		.data		= &inodes_stat,
+		.maxlen		= 7*sizeof(int),
+		.mode		= 0444,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= FS_NRFILE,
+		.procname	= "file-nr",
+		.data		= &files_stat,
+		.maxlen		= 3*sizeof(int),
+		.mode		= 0444,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= FS_MAXFILE,
+		.procname	= "file-max",
+		.data		= &files_stat.max_files,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= FS_DENTRY,
+		.procname	= "dentry-state",
+		.data		= &dentry_stat,
+		.maxlen		= 6*sizeof(int),
+		.mode		= 0444,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= FS_OVERFLOWUID,
+		.procname	= "overflowuid",
+		.data		= &fs_overflowuid,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec_minmax,
+		.strategy	= &sysctl_intvec,
+		.extra1		= &minolduid,
+		.extra2		= &maxolduid,
+	},
+	{
+		.ctl_name	= FS_OVERFLOWGID,
+		.procname	= "overflowgid",
+		.data		= &fs_overflowgid,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec_minmax,
+		.strategy	= &sysctl_intvec,
+		.extra1		= &minolduid,
+		.extra2		= &maxolduid,
+	},
+	{
+		.ctl_name	= FS_LEASES,
+		.procname	= "leases-enable",
+		.data		= &leases_enable,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+#ifdef CONFIG_DNOTIFY
+	{
+		.ctl_name	= FS_DIR_NOTIFY,
+		.procname	= "dir-notify-enable",
+		.data		= &dir_notify_enable,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+#ifdef CONFIG_MMU
+	{
+		.ctl_name	= FS_LEASE_TIME,
+		.procname	= "lease-break-time",
+		.data		= &lease_break_time,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= FS_AIO_NR,
+		.procname	= "aio-nr",
+		.data		= &aio_nr,
+		.maxlen		= sizeof(aio_nr),
+		.mode		= 0444,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= FS_AIO_MAX_NR,
+		.procname	= "aio-max-nr",
+		.data		= &aio_max_nr,
+		.maxlen		= sizeof(aio_max_nr),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
+	{ .ctl_name = 0 }
+};
+
+static ctl_table debug_table[] = {
+	{ .ctl_name = 0 }
+};
+
+static ctl_table dev_table[] = {
+	{ .ctl_name = 0 }
+};  
+
+extern void init_irq_proc (void);
+
+void __init sysctl_init(void)
+{
+#ifdef CONFIG_PROC_FS
+	register_proc_table(root_table, proc_sys_root);
+	init_irq_proc();
+#endif
+}
+
+int do_sysctl(int __user *name, int nlen, void __user *oldval, size_t __user *oldlenp,
+	       void __user *newval, size_t newlen)
+{
+	struct list_head *tmp;
+
+	if (nlen <= 0 || nlen >= CTL_MAXNAME)
+		return -ENOTDIR;
+	if (oldval) {
+		int old_len;
+		if (!oldlenp || get_user(old_len, oldlenp))
+			return -EFAULT;
+	}
+	tmp = &root_table_header.ctl_entry;
+	do {
+		struct ctl_table_header *head =
+			list_entry(tmp, struct ctl_table_header, ctl_entry);
+		void *context = NULL;
+		int error = parse_table(name, nlen, oldval, oldlenp, 
+					newval, newlen, head->ctl_table,
+					&context);
+		if (context)
+			kfree(context);
+		if (error != -ENOTDIR)
+			return error;
+		tmp = tmp->next;
+	} while (tmp != &root_table_header.ctl_entry);
+	return -ENOTDIR;
+}
+
+asmlinkage long sys_sysctl(struct __sysctl_args __user *args)
+{
+	struct __sysctl_args tmp;
+	int error;
+
+	if (copy_from_user(&tmp, args, sizeof(tmp)))
+		return -EFAULT;
+
+	lock_kernel();
+	error = do_sysctl(tmp.name, tmp.nlen, tmp.oldval, tmp.oldlenp,
+			  tmp.newval, tmp.newlen);
+	unlock_kernel();
+	return error;
+}
+
+/*
+ * ctl_perm does NOT grant the superuser all rights automatically, because
+ * some sysctl variables are readonly even to root.
+ */
+
+static int test_perm(int mode, int op)
+{
+	if (!current->euid)
+		mode >>= 6;
+	else if (in_egroup_p(0))
+		mode >>= 3;
+	if ((mode & op & 0007) == op)
+		return 0;
+	return -EACCES;
+}
+
+static inline int ctl_perm(ctl_table *table, int op)
+{
+	int error;
+	error = security_sysctl(table, op);
+	if (error)
+		return error;
+	return test_perm(table->mode, op);
+}
+
+static int parse_table(int __user *name, int nlen,
+		       void __user *oldval, size_t __user *oldlenp,
+		       void __user *newval, size_t newlen,
+		       ctl_table *table, void **context)
+{
+	int n;
+repeat:
+	if (!nlen)
+		return -ENOTDIR;
+	if (get_user(n, name))
+		return -EFAULT;
+	for ( ; table->ctl_name; table++) {
+		if (n == table->ctl_name || table->ctl_name == CTL_ANY) {
+			int error;
+			if (table->child) {
+				if (ctl_perm(table, 001))
+					return -EPERM;
+				if (table->strategy) {
+					error = table->strategy(
+						table, name, nlen,
+						oldval, oldlenp,
+						newval, newlen, context);
+					if (error)
+						return error;
+				}
+				name++;
+				nlen--;
+				table = table->child;
+				goto repeat;
+			}
+			error = do_sysctl_strategy(table, name, nlen,
+						   oldval, oldlenp,
+						   newval, newlen, context);
+			return error;
+		}
+	}
+	return -ENOTDIR;
+}
+
+/* Perform the actual read/write of a sysctl table entry. */
+int do_sysctl_strategy (ctl_table *table, 
+			int __user *name, int nlen,
+			void __user *oldval, size_t __user *oldlenp,
+			void __user *newval, size_t newlen, void **context)
+{
+	int op = 0, rc;
+	size_t len;
+
+	if (oldval)
+		op |= 004;
+	if (newval) 
+		op |= 002;
+	if (ctl_perm(table, op))
+		return -EPERM;
+
+	if (table->strategy) {
+		rc = table->strategy(table, name, nlen, oldval, oldlenp,
+				     newval, newlen, context);
+		if (rc < 0)
+			return rc;
+		if (rc > 0)
+			return 0;
+	}
+
+	/* If there is no strategy routine, or if the strategy returns
+	 * zero, proceed with automatic r/w */
+	if (table->data && table->maxlen) {
+		if (oldval && oldlenp) {
+			if (get_user(len, oldlenp))
+				return -EFAULT;
+			if (len) {
+				if (len > table->maxlen)
+					len = table->maxlen;
+				if(copy_to_user(oldval, table->data, len))
+					return -EFAULT;
+				if(put_user(len, oldlenp))
+					return -EFAULT;
+			}
+		}
+		if (newval && newlen) {
+			len = newlen;
+			if (len > table->maxlen)
+				len = table->maxlen;
+			if(copy_from_user(table->data, newval, len))
+				return -EFAULT;
+		}
+	}
+	return 0;
+}
+
+/**
+ * register_sysctl_table - register a sysctl hierarchy
+ * @table: the top-level table structure
+ * @insert_at_head: whether the entry should be inserted in front or at the end
+ *
+ * Register a sysctl table hierarchy. @table should be a filled in ctl_table
+ * array. An entry with a ctl_name of 0 terminates the table. 
+ *
+ * The members of the &ctl_table structure are used as follows:
+ *
+ * ctl_name - This is the numeric sysctl value used by sysctl(2). The number
+ *            must be unique within that level of sysctl
+ *
+ * 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)
+ *
+ * strategy - the strategy routine (described below)
+ *
+ * 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.
+ *
+ * More sophisticated management can be enabled by the provision of a
+ * strategy routine with the table entry.  This will be called before
+ * any automatic read or write of the data is performed.
+ *
+ * The strategy routine may return
+ *
+ * < 0 - Error occurred (error is passed to user process)
+ *
+ * 0   - OK - proceed with automatic read or write.
+ *
+ * > 0 - OK - read or write has been done by the strategy routine, so
+ *       return immediately.
+ *
+ * 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.
+ */
+struct ctl_table_header *register_sysctl_table(ctl_table * table, 
+					       int insert_at_head)
+{
+	struct ctl_table_header *tmp;
+	tmp = kmalloc(sizeof(struct ctl_table_header), GFP_KERNEL);
+	if (!tmp)
+		return NULL;
+	tmp->ctl_table = table;
+	INIT_LIST_HEAD(&tmp->ctl_entry);
+	if (insert_at_head)
+		list_add(&tmp->ctl_entry, &root_table_header.ctl_entry);
+	else
+		list_add_tail(&tmp->ctl_entry, &root_table_header.ctl_entry);
+#ifdef CONFIG_PROC_FS
+	register_proc_table(table, proc_sys_root);
+#endif
+	return tmp;
+}
+
+/**
+ * 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)
+{
+	list_del(&header->ctl_entry);
+#ifdef CONFIG_PROC_FS
+	unregister_proc_table(header->ctl_table, proc_sys_root);
+#endif
+	kfree(header);
+}
+
+/*
+ * /proc/sys support
+ */
+
+#ifdef CONFIG_PROC_FS
+
+/* Scan the sysctl entries in table and add them all into /proc */
+static void register_proc_table(ctl_table * table, struct proc_dir_entry *root)
+{
+	struct proc_dir_entry *de;
+	int len;
+	mode_t mode;
+	
+	for (; table->ctl_name; table++) {
+		/* Can't do anything without a proc name. */
+		if (!table->procname)
+			continue;
+		/* Maybe we can't do anything with it... */
+		if (!table->proc_handler && !table->child) {
+			printk(KERN_WARNING "SYSCTL: Can't register %s\n",
+				table->procname);
+			continue;
+		}
+
+		len = strlen(table->procname);
+		mode = table->mode;
+
+		de = NULL;
+		if (table->proc_handler)
+			mode |= S_IFREG;
+		else {
+			mode |= S_IFDIR;
+			for (de = root->subdir; de; de = de->next) {
+				if (proc_match(len, table->procname, de))
+					break;
+			}
+			/* If the subdir exists already, de is non-NULL */
+		}
+
+		if (!de) {
+			de = create_proc_entry(table->procname, mode, root);
+			if (!de)
+				continue;
+			de->data = (void *) table;
+			if (table->proc_handler)
+				de->proc_fops = &proc_sys_file_operations;
+		}
+		table->de = de;
+		if (de->mode & S_IFDIR)
+			register_proc_table(table->child, de);
+	}
+}
+
+/*
+ * Unregister a /proc sysctl table and any subdirectories.
+ */
+static void unregister_proc_table(ctl_table * table, struct proc_dir_entry *root)
+{
+	struct proc_dir_entry *de;
+	for (; table->ctl_name; table++) {
+		if (!(de = table->de))
+			continue;
+		if (de->mode & S_IFDIR) {
+			if (!table->child) {
+				printk (KERN_ALERT "Help - malformed sysctl tree on free\n");
+				continue;
+			}
+			unregister_proc_table(table->child, de);
+
+			/* Don't unregister directories which still have entries.. */
+			if (de->subdir)
+				continue;
+		}
+
+		/* Don't unregister proc entries that are still being used.. */
+		if (atomic_read(&de->count))
+			continue;
+
+		table->de = NULL;
+		remove_proc_entry(table->procname, root);
+	}
+}
+
+static ssize_t do_rw_proc(int write, struct file * file, char __user * buf,
+			  size_t count, loff_t *ppos)
+{
+	int op;
+	struct proc_dir_entry *de;
+	struct ctl_table *table;
+	size_t res;
+	ssize_t error;
+	
+	de = PDE(file->f_dentry->d_inode);
+	if (!de || !de->data)
+		return -ENOTDIR;
+	table = (struct ctl_table *) de->data;
+	if (!table || !table->proc_handler)
+		return -ENOTDIR;
+	op = (write ? 002 : 004);
+	if (ctl_perm(table, op))
+		return -EPERM;
+	
+	res = count;
+
+	error = (*table->proc_handler) (table, write, file, buf, &res, ppos);
+	if (error)
+		return error;
+	return res;
+}
+
+static int proc_opensys(struct inode *inode, struct file *file)
+{
+	if (file->f_mode & FMODE_WRITE) {
+		/*
+		 * sysctl entries that are not writable,
+		 * are _NOT_ writable, capabilities or not.
+		 */
+		if (!(inode->i_mode & S_IWUSR))
+			return -EPERM;
+	}
+
+	return 0;
+}
+
+static ssize_t proc_readsys(struct file * file, char __user * buf,
+			    size_t count, loff_t *ppos)
+{
+	return do_rw_proc(0, file, buf, count, ppos);
+}
+
+static ssize_t proc_writesys(struct file * file, const char __user * buf,
+			     size_t count, loff_t *ppos)
+{
+	return do_rw_proc(1, file, (char __user *) buf, count, ppos);
+}
+
+/**
+ * proc_dostring - read a string sysctl
+ * @table: the sysctl table
+ * @write: %TRUE if this is a write to the sysctl file
+ * @filp: the file structure
+ * @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 '\n' is added. It is truncated if the buffer is
+ * not large enough.
+ *
+ * Returns 0 on success.
+ */
+int proc_dostring(ctl_table *table, int write, struct file *filp,
+		  void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	size_t len;
+	char __user *p;
+	char c;
+	
+	if (!table->data || !table->maxlen || !*lenp ||
+	    (*ppos && !write)) {
+		*lenp = 0;
+		return 0;
+	}
+	
+	if (write) {
+		len = 0;
+		p = buffer;
+		while (len < *lenp) {
+			if (get_user(c, p++))
+				return -EFAULT;
+			if (c == 0 || c == '\n')
+				break;
+			len++;
+		}
+		if (len >= table->maxlen)
+			len = table->maxlen-1;
+		if(copy_from_user(table->data, buffer, len))
+			return -EFAULT;
+		((char *) table->data)[len] = 0;
+		*ppos += *lenp;
+	} else {
+		len = strlen(table->data);
+		if (len > table->maxlen)
+			len = table->maxlen;
+		if (len > *lenp)
+			len = *lenp;
+		if (len)
+			if(copy_to_user(buffer, table->data, len))
+				return -EFAULT;
+		if (len < *lenp) {
+			if(put_user('\n', ((char __user *) buffer) + len))
+				return -EFAULT;
+			len++;
+		}
+		*lenp = len;
+		*ppos += len;
+	}
+	return 0;
+}
+
+/*
+ *	Special case of dostring for the UTS structure. This has locks
+ *	to observe. Should this be in kernel/sys.c ????
+ */
+ 
+static int proc_doutsstring(ctl_table *table, int write, struct file *filp,
+		  void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	int r;
+
+	if (!write) {
+		down_read(&uts_sem);
+		r=proc_dostring(table,0,filp,buffer,lenp, ppos);
+		up_read(&uts_sem);
+	} else {
+		down_write(&uts_sem);
+		r=proc_dostring(table,1,filp,buffer,lenp, ppos);
+		up_write(&uts_sem);
+	}
+	return r;
+}
+
+static int do_proc_dointvec_conv(int *negp, unsigned long *lvalp,
+				 int *valp,
+				 int write, void *data)
+{
+	if (write) {
+		*valp = *negp ? -*lvalp : *lvalp;
+	} else {
+		int val = *valp;
+		if (val < 0) {
+			*negp = -1;
+			*lvalp = (unsigned long)-val;
+		} else {
+			*negp = 0;
+			*lvalp = (unsigned long)val;
+		}
+	}
+	return 0;
+}
+
+static int do_proc_dointvec(ctl_table *table, int write, struct file *filp,
+		  void __user *buffer, size_t *lenp, loff_t *ppos,
+		  int (*conv)(int *negp, unsigned long *lvalp, int *valp,
+			      int write, void *data),
+		  void *data)
+{
+#define TMPBUFLEN 21
+	int *i, vleft, first=1, neg, val;
+	unsigned long lval;
+	size_t left, len;
+	
+	char buf[TMPBUFLEN], *p;
+	char __user *s = buffer;
+	
+	if (!table->data || !table->maxlen || !*lenp ||
+	    (*ppos && !write)) {
+		*lenp = 0;
+		return 0;
+	}
+	
+	i = (int *) table->data;
+	vleft = table->maxlen / sizeof(*i);
+	left = *lenp;
+
+	if (!conv)
+		conv = do_proc_dointvec_conv;
+
+	for (; left && vleft--; i++, first=0) {
+		if (write) {
+			while (left) {
+				char c;
+				if (get_user(c, s))
+					return -EFAULT;
+				if (!isspace(c))
+					break;
+				left--;
+				s++;
+			}
+			if (!left)
+				break;
+			neg = 0;
+			len = left;
+			if (len > sizeof(buf) - 1)
+				len = sizeof(buf) - 1;
+			if (copy_from_user(buf, s, len))
+				return -EFAULT;
+			buf[len] = 0;
+			p = buf;
+			if (*p == '-' && left > 1) {
+				neg = 1;
+				left--, p++;
+			}
+			if (*p < '0' || *p > '9')
+				break;
+
+			lval = simple_strtoul(p, &p, 0);
+
+			len = p-buf;
+			if ((len < left) && *p && !isspace(*p))
+				break;
+			if (neg)
+				val = -val;
+			s += len;
+			left -= len;
+
+			if (conv(&neg, &lval, i, 1, data))
+				break;
+		} else {
+			p = buf;
+			if (!first)
+				*p++ = '\t';
+	
+			if (conv(&neg, &lval, i, 0, data))
+				break;
+
+			sprintf(p, "%s%lu", neg ? "-" : "", lval);
+			len = strlen(buf);
+			if (len > left)
+				len = left;
+			if(copy_to_user(s, buf, len))
+				return -EFAULT;
+			left -= len;
+			s += len;
+		}
+	}
+
+	if (!write && !first && left) {
+		if(put_user('\n', s))
+			return -EFAULT;
+		left--, s++;
+	}
+	if (write) {
+		while (left) {
+			char c;
+			if (get_user(c, s++))
+				return -EFAULT;
+			if (!isspace(c))
+				break;
+			left--;
+		}
+	}
+	if (write && first)
+		return -EINVAL;
+	*lenp -= left;
+	*ppos += *lenp;
+	return 0;
+#undef TMPBUFLEN
+}
+
+/**
+ * proc_dointvec - read a vector of integers
+ * @table: the sysctl table
+ * @write: %TRUE if this is a write to the sysctl file
+ * @filp: the file structure
+ * @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.
+ */
+int proc_dointvec(ctl_table *table, int write, struct file *filp,
+		     void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+    return do_proc_dointvec(table,write,filp,buffer,lenp,ppos,
+		    	    NULL,NULL);
+}
+
+#define OP_SET	0
+#define OP_AND	1
+#define OP_OR	2
+#define OP_MAX	3
+#define OP_MIN	4
+
+static int do_proc_dointvec_bset_conv(int *negp, unsigned long *lvalp,
+				      int *valp,
+				      int write, void *data)
+{
+	int op = *(int *)data;
+	if (write) {
+		int val = *negp ? -*lvalp : *lvalp;
+		switch(op) {
+		case OP_SET:	*valp = val; break;
+		case OP_AND:	*valp &= val; break;
+		case OP_OR:	*valp |= val; break;
+		case OP_MAX:	if(*valp < val)
+					*valp = val;
+				break;
+		case OP_MIN:	if(*valp > val)
+				*valp = val;
+				break;
+		}
+	} else {
+		int val = *valp;
+		if (val < 0) {
+			*negp = -1;
+			*lvalp = (unsigned long)-val;
+		} else {
+			*negp = 0;
+			*lvalp = (unsigned long)val;
+		}
+	}
+	return 0;
+}
+
+/*
+ *	init may raise the set.
+ */
+ 
+int proc_dointvec_bset(ctl_table *table, int write, struct file *filp,
+			void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	int op;
+
+	if (!capable(CAP_SYS_MODULE)) {
+		return -EPERM;
+	}
+
+	op = (current->pid == 1) ? OP_SET : OP_AND;
+	return do_proc_dointvec(table,write,filp,buffer,lenp,ppos,
+				do_proc_dointvec_bset_conv,&op);
+}
+
+struct do_proc_dointvec_minmax_conv_param {
+	int *min;
+	int *max;
+};
+
+static int do_proc_dointvec_minmax_conv(int *negp, unsigned long *lvalp, 
+					int *valp, 
+					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) {
+			*negp = -1;
+			*lvalp = (unsigned long)-val;
+		} else {
+			*negp = 0;
+			*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
+ * @filp: the file structure
+ * @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.
+ */
+int proc_dointvec_minmax(ctl_table *table, int write, struct file *filp,
+		  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,
+	};
+	return do_proc_dointvec(table, write, filp, buffer, lenp, ppos,
+				do_proc_dointvec_minmax_conv, &param);
+}
+
+static int do_proc_doulongvec_minmax(ctl_table *table, int write,
+				     struct file *filp,
+				     void __user *buffer,
+				     size_t *lenp, loff_t *ppos,
+				     unsigned long convmul,
+				     unsigned long convdiv)
+{
+#define TMPBUFLEN 21
+	unsigned long *i, *min, *max, val;
+	int vleft, first=1, neg;
+	size_t len, left;
+	char buf[TMPBUFLEN], *p;
+	char __user *s = buffer;
+	
+	if (!table->data || !table->maxlen || !*lenp ||
+	    (*ppos && !write)) {
+		*lenp = 0;
+		return 0;
+	}
+	
+	i = (unsigned long *) table->data;
+	min = (unsigned long *) table->extra1;
+	max = (unsigned long *) table->extra2;
+	vleft = table->maxlen / sizeof(unsigned long);
+	left = *lenp;
+	
+	for (; left && vleft--; i++, min++, max++, first=0) {
+		if (write) {
+			while (left) {
+				char c;
+				if (get_user(c, s))
+					return -EFAULT;
+				if (!isspace(c))
+					break;
+				left--;
+				s++;
+			}
+			if (!left)
+				break;
+			neg = 0;
+			len = left;
+			if (len > TMPBUFLEN-1)
+				len = TMPBUFLEN-1;
+			if (copy_from_user(buf, s, len))
+				return -EFAULT;
+			buf[len] = 0;
+			p = buf;
+			if (*p == '-' && left > 1) {
+				neg = 1;
+				left--, p++;
+			}
+			if (*p < '0' || *p > '9')
+				break;
+			val = simple_strtoul(p, &p, 0) * convmul / convdiv ;
+			len = p-buf;
+			if ((len < left) && *p && !isspace(*p))
+				break;
+			if (neg)
+				val = -val;
+			s += len;
+			left -= len;
+
+			if(neg)
+				continue;
+			if ((min && val < *min) || (max && val > *max))
+				continue;
+			*i = val;
+		} else {
+			p = buf;
+			if (!first)
+				*p++ = '\t';
+			sprintf(p, "%lu", convdiv * (*i) / convmul);
+			len = strlen(buf);
+			if (len > left)
+				len = left;
+			if(copy_to_user(s, buf, len))
+				return -EFAULT;
+			left -= len;
+			s += len;
+		}
+	}
+
+	if (!write && !first && left) {
+		if(put_user('\n', s))
+			return -EFAULT;
+		left--, s++;
+	}
+	if (write) {
+		while (left) {
+			char c;
+			if (get_user(c, s++))
+				return -EFAULT;
+			if (!isspace(c))
+				break;
+			left--;
+		}
+	}
+	if (write && first)
+		return -EINVAL;
+	*lenp -= left;
+	*ppos += *lenp;
+	return 0;
+#undef TMPBUFLEN
+}
+
+/**
+ * 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
+ * @filp: the file structure
+ * @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.
+ */
+int proc_doulongvec_minmax(ctl_table *table, int write, struct file *filp,
+			   void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+    return do_proc_doulongvec_minmax(table, write, filp, buffer, lenp, ppos, 1l, 1l);
+}
+
+/**
+ * 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
+ * @filp: the file structure
+ * @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.
+ */
+int proc_doulongvec_ms_jiffies_minmax(ctl_table *table, int write,
+				      struct file *filp,
+				      void __user *buffer,
+				      size_t *lenp, loff_t *ppos)
+{
+    return do_proc_doulongvec_minmax(table, write, filp, buffer,
+				     lenp, ppos, HZ, 1000l);
+}
+
+
+static int do_proc_dointvec_jiffies_conv(int *negp, unsigned long *lvalp,
+					 int *valp,
+					 int write, void *data)
+{
+	if (write) {
+		*valp = *negp ? -(*lvalp*HZ) : (*lvalp*HZ);
+	} else {
+		int val = *valp;
+		unsigned long lval;
+		if (val < 0) {
+			*negp = -1;
+			lval = (unsigned long)-val;
+		} else {
+			*negp = 0;
+			lval = (unsigned long)val;
+		}
+		*lvalp = lval / HZ;
+	}
+	return 0;
+}
+
+static int do_proc_dointvec_userhz_jiffies_conv(int *negp, unsigned long *lvalp,
+						int *valp,
+						int write, void *data)
+{
+	if (write) {
+		*valp = clock_t_to_jiffies(*negp ? -*lvalp : *lvalp);
+	} else {
+		int val = *valp;
+		unsigned long lval;
+		if (val < 0) {
+			*negp = -1;
+			lval = (unsigned long)-val;
+		} else {
+			*negp = 0;
+			lval = (unsigned long)val;
+		}
+		*lvalp = jiffies_to_clock_t(lval);
+	}
+	return 0;
+}
+
+static int do_proc_dointvec_ms_jiffies_conv(int *negp, unsigned long *lvalp,
+					    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) {
+			*negp = -1;
+			lval = (unsigned long)-val;
+		} else {
+			*negp = 0;
+			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
+ * @filp: the file structure
+ * @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.
+ */
+int proc_dointvec_jiffies(ctl_table *table, int write, struct file *filp,
+			  void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+    return do_proc_dointvec(table,write,filp,buffer,lenp,ppos,
+		    	    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
+ * @filp: the file structure
+ * @buffer: the user buffer
+ * @lenp: the size of the user buffer
+ *
+ * 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.
+ */
+int proc_dointvec_userhz_jiffies(ctl_table *table, int write, struct file *filp,
+				 void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+    return do_proc_dointvec(table,write,filp,buffer,lenp,ppos,
+		    	    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
+ * @filp: the file structure
+ * @buffer: the user buffer
+ * @lenp: the size of the user buffer
+ *
+ * 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.
+ */
+int proc_dointvec_ms_jiffies(ctl_table *table, int write, struct file *filp,
+			     void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return do_proc_dointvec(table, write, filp, buffer, lenp, ppos,
+				do_proc_dointvec_ms_jiffies_conv, NULL);
+}
+
+#else /* CONFIG_PROC_FS */
+
+int proc_dostring(ctl_table *table, int write, struct file *filp,
+		  void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return -ENOSYS;
+}
+
+static int proc_doutsstring(ctl_table *table, int write, struct file *filp,
+			    void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return -ENOSYS;
+}
+
+int proc_dointvec(ctl_table *table, int write, struct file *filp,
+		  void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return -ENOSYS;
+}
+
+int proc_dointvec_bset(ctl_table *table, int write, struct file *filp,
+			void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return -ENOSYS;
+}
+
+int proc_dointvec_minmax(ctl_table *table, int write, struct file *filp,
+		    void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return -ENOSYS;
+}
+
+int proc_dointvec_jiffies(ctl_table *table, int write, struct file *filp,
+		    void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return -ENOSYS;
+}
+
+int proc_dointvec_userhz_jiffies(ctl_table *table, int write, struct file *filp,
+		    void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return -ENOSYS;
+}
+
+int proc_dointvec_ms_jiffies(ctl_table *table, int write, struct file *filp,
+			     void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return -ENOSYS;
+}
+
+int proc_doulongvec_minmax(ctl_table *table, int write, struct file *filp,
+		    void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return -ENOSYS;
+}
+
+int proc_doulongvec_ms_jiffies_minmax(ctl_table *table, int write,
+				      struct file *filp,
+				      void __user *buffer,
+				      size_t *lenp, loff_t *ppos)
+{
+    return -ENOSYS;
+}
+
+
+#endif /* CONFIG_PROC_FS */
+
+
+/*
+ * General sysctl support routines 
+ */
+
+/* The generic string strategy routine: */
+int sysctl_string(ctl_table *table, int __user *name, int nlen,
+		  void __user *oldval, size_t __user *oldlenp,
+		  void __user *newval, size_t newlen, void **context)
+{
+	size_t l, len;
+	
+	if (!table->data || !table->maxlen) 
+		return -ENOTDIR;
+	
+	if (oldval && oldlenp) {
+		if (get_user(len, oldlenp))
+			return -EFAULT;
+		if (len) {
+			l = strlen(table->data);
+			if (len > l) len = l;
+			if (len >= table->maxlen)
+				len = table->maxlen;
+			if(copy_to_user(oldval, table->data, len))
+				return -EFAULT;
+			if(put_user(0, ((char __user *) oldval) + len))
+				return -EFAULT;
+			if(put_user(len, oldlenp))
+				return -EFAULT;
+		}
+	}
+	if (newval && newlen) {
+		len = newlen;
+		if (len > table->maxlen)
+			len = table->maxlen;
+		if(copy_from_user(table->data, newval, len))
+			return -EFAULT;
+		if (len == table->maxlen)
+			len--;
+		((char *) table->data)[len] = 0;
+	}
+	return 0;
+}
+
+/*
+ * This function makes sure that all of the integers in the vector
+ * are between the minimum and maximum values given in the arrays
+ * table->extra1 and table->extra2, respectively.
+ */
+int sysctl_intvec(ctl_table *table, int __user *name, int nlen,
+		void __user *oldval, size_t __user *oldlenp,
+		void __user *newval, size_t newlen, void **context)
+{
+
+	if (newval && newlen) {
+		int __user *vec = (int __user *) newval;
+		int *min = (int *) table->extra1;
+		int *max = (int *) table->extra2;
+		size_t length;
+		int i;
+
+		if (newlen % sizeof(int) != 0)
+			return -EINVAL;
+
+		if (!table->extra1 && !table->extra2)
+			return 0;
+
+		if (newlen > table->maxlen)
+			newlen = table->maxlen;
+		length = newlen / sizeof(int);
+
+		for (i = 0; i < length; i++) {
+			int value;
+			if (get_user(value, vec + i))
+				return -EFAULT;
+			if (min && value < min[i])
+				return -EINVAL;
+			if (max && value > max[i])
+				return -EINVAL;
+		}
+	}
+	return 0;
+}
+
+/* Strategy function to convert jiffies to seconds */ 
+int sysctl_jiffies(ctl_table *table, int __user *name, int nlen,
+		void __user *oldval, size_t __user *oldlenp,
+		void __user *newval, size_t newlen, void **context)
+{
+	if (oldval) {
+		size_t olen;
+		if (oldlenp) { 
+			if (get_user(olen, oldlenp))
+				return -EFAULT;
+			if (olen!=sizeof(int))
+				return -EINVAL; 
+		}
+		if (put_user(*(int *)(table->data)/HZ, (int __user *)oldval) ||
+		    (oldlenp && put_user(sizeof(int),oldlenp)))
+			return -EFAULT;
+	}
+	if (newval && newlen) { 
+		int new;
+		if (newlen != sizeof(int))
+			return -EINVAL; 
+		if (get_user(new, (int __user *)newval))
+			return -EFAULT;
+		*(int *)(table->data) = new*HZ; 
+	}
+	return 1;
+}
+
+/* Strategy function to convert jiffies to seconds */ 
+int sysctl_ms_jiffies(ctl_table *table, int __user *name, int nlen,
+		void __user *oldval, size_t __user *oldlenp,
+		void __user *newval, size_t newlen, void **context)
+{
+	if (oldval) {
+		size_t olen;
+		if (oldlenp) { 
+			if (get_user(olen, oldlenp))
+				return -EFAULT;
+			if (olen!=sizeof(int))
+				return -EINVAL; 
+		}
+		if (put_user(jiffies_to_msecs(*(int *)(table->data)), (int __user *)oldval) ||
+		    (oldlenp && put_user(sizeof(int),oldlenp)))
+			return -EFAULT;
+	}
+	if (newval && newlen) { 
+		int new;
+		if (newlen != sizeof(int))
+			return -EINVAL; 
+		if (get_user(new, (int __user *)newval))
+			return -EFAULT;
+		*(int *)(table->data) = msecs_to_jiffies(new);
+	}
+	return 1;
+}
+
+#else /* CONFIG_SYSCTL */
+
+
+asmlinkage long sys_sysctl(struct __sysctl_args __user *args)
+{
+	return -ENOSYS;
+}
+
+int sysctl_string(ctl_table *table, int __user *name, int nlen,
+		  void __user *oldval, size_t __user *oldlenp,
+		  void __user *newval, size_t newlen, void **context)
+{
+	return -ENOSYS;
+}
+
+int sysctl_intvec(ctl_table *table, int __user *name, int nlen,
+		void __user *oldval, size_t __user *oldlenp,
+		void __user *newval, size_t newlen, void **context)
+{
+	return -ENOSYS;
+}
+
+int sysctl_jiffies(ctl_table *table, int __user *name, int nlen,
+		void __user *oldval, size_t __user *oldlenp,
+		void __user *newval, size_t newlen, void **context)
+{
+	return -ENOSYS;
+}
+
+int sysctl_ms_jiffies(ctl_table *table, int __user *name, int nlen,
+		void __user *oldval, size_t __user *oldlenp,
+		void __user *newval, size_t newlen, void **context)
+{
+	return -ENOSYS;
+}
+
+int proc_dostring(ctl_table *table, int write, struct file *filp,
+		  void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return -ENOSYS;
+}
+
+int proc_dointvec(ctl_table *table, int write, struct file *filp,
+		  void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return -ENOSYS;
+}
+
+int proc_dointvec_bset(ctl_table *table, int write, struct file *filp,
+			void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return -ENOSYS;
+}
+
+int proc_dointvec_minmax(ctl_table *table, int write, struct file *filp,
+		    void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return -ENOSYS;
+}
+
+int proc_dointvec_jiffies(ctl_table *table, int write, struct file *filp,
+			  void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return -ENOSYS;
+}
+
+int proc_dointvec_userhz_jiffies(ctl_table *table, int write, struct file *filp,
+			  void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return -ENOSYS;
+}
+
+int proc_dointvec_ms_jiffies(ctl_table *table, int write, struct file *filp,
+			     void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return -ENOSYS;
+}
+
+int proc_doulongvec_minmax(ctl_table *table, int write, struct file *filp,
+		    void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return -ENOSYS;
+}
+
+int proc_doulongvec_ms_jiffies_minmax(ctl_table *table, int write,
+				      struct file *filp,
+				      void __user *buffer,
+				      size_t *lenp, loff_t *ppos)
+{
+    return -ENOSYS;
+}
+
+struct ctl_table_header * register_sysctl_table(ctl_table * table, 
+						int insert_at_head)
+{
+	return NULL;
+}
+
+void unregister_sysctl_table(struct ctl_table_header * table)
+{
+}
+
+#endif /* CONFIG_SYSCTL */
+
+/*
+ * 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);
+EXPORT_SYMBOL(sysctl_intvec);
+EXPORT_SYMBOL(sysctl_jiffies);
+EXPORT_SYMBOL(sysctl_ms_jiffies);
+EXPORT_SYMBOL(sysctl_string);
+EXPORT_SYMBOL(unregister_sysctl_table);