[PATCH] sysctl: remove insert_at_head from register_sysctl

The semantic effect of insert_at_head is that it would allow new registered
sysctl entries to override existing sysctl entries of the same name.  Which is
pain for caching and the proc interface never implemented.

I have done an audit and discovered that none of the current users of
register_sysctl care as (excpet for directories) they do not register
duplicate sysctl entries.

So this patch simply removes the support for overriding existing entries in
the sys_sysctl interface since no one uses it or cares and it makes future
enhancments harder.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: David Howells <dhowells@redhat.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Andi Kleen <ak@muc.de>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Corey Minyard <minyard@acm.org>
Cc: Neil Brown <neilb@suse.de>
Cc: "John W. Linville" <linville@tuxdriver.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Jan Kara <jack@ucw.cz>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Mark Fasheh <mark.fasheh@oracle.com>
Cc: David Chinner <dgc@sgi.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Patrick McHardy <kaber@trash.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

68 files changed, 75 insertions, 80 deletions

diff --git a/arch/arm/kernel/isa.c b/arch/arm/kernel/isa.c
index 54bbd9fe255c..50a30bc91872 100644
--- a/arch/arm/kernel/isa.c
+++ b/arch/arm/kernel/isa.c
@@ -70,5 +70,5 @@ register_isa_ports(unsigned int membase, unsigned int portbase, unsigned int por
         isa_membase = membase;
         isa_portbase = portbase;
         isa_portshift = portshift;
-        isa_sysctl_header = register_sysctl_table(ctl_bus, 0);
+        isa_sysctl_header = register_sysctl_table(ctl_bus);
 }
diff --git a/arch/frv/kernel/pm.c b/arch/frv/kernel/pm.c
index aa503338985f..c57ce3f1f2e2 100644
--- a/arch/frv/kernel/pm.c
+++ b/arch/frv/kernel/pm.c
@@ -455,7 +455,7 @@ static struct ctl_table pm_dir_table[] =
  */
 static int __init pm_init(void)
 {
-        register_sysctl_table(pm_dir_table, 0);
+        register_sysctl_table(pm_dir_table);
         return 0;
 }
 
diff --git a/arch/frv/kernel/sysctl.c b/arch/frv/kernel/sysctl.c
index 577ad16cf840..3e9d7e03fb95 100644
--- a/arch/frv/kernel/sysctl.c
+++ b/arch/frv/kernel/sysctl.c
@@ -216,7 +216,7 @@ static struct ctl_table frv_dir_table[] =
  */
 static int __init frv_sysctl_init(void)
 {
-        register_sysctl_table(frv_dir_table, 0);
+        register_sysctl_table(frv_dir_table);
         return 0;
 }
 
diff --git a/arch/ia64/kernel/crash.c b/arch/ia64/kernel/crash.c
index 37bb16f07fc3..5cdd2f5fa064 100644
--- a/arch/ia64/kernel/crash.c
+++ b/arch/ia64/kernel/crash.c
@@ -222,7 +222,7 @@ machine_crash_setup(void)
         if((ret = register_die_notifier(&kdump_init_notifier_nb)) != 0)
                 return ret;
 #ifdef CONFIG_SYSCTL
-        register_sysctl_table(sys_table, 0);
+        register_sysctl_table(sys_table);
 #endif
         return 0;
 }
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index d2f299d98977..2ecb20b551e1 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -6726,7 +6726,7 @@ pfm_init(void)
         /*
          * create /proc/sys/kernel/perfmon (for debugging purposes)
          */
-        pfm_sysctl_header = register_sysctl_table(pfm_sysctl_root, 0);
+        pfm_sysctl_header = register_sysctl_table(pfm_sysctl_root);
 
         /*
          * initialize all our spinlocks
diff --git a/arch/ia64/sn/kernel/xpc_main.c b/arch/ia64/sn/kernel/xpc_main.c
index e04f7b5f2aab..68355ef6f841 100644
--- a/arch/ia64/sn/kernel/xpc_main.c
+++ b/arch/ia64/sn/kernel/xpc_main.c
@@ -1241,7 +1241,7 @@ xpc_init(void)
         snprintf(xpc_part->bus_id, BUS_ID_SIZE, "part");
         snprintf(xpc_chan->bus_id, BUS_ID_SIZE, "chan");
 
-        xpc_sysctl = register_sysctl_table(xpc_sys_dir, 0);
+        xpc_sysctl = register_sysctl_table(xpc_sys_dir);
 
         /*
          * The first few fields of each entry of xpc_partitions[] need to
diff --git a/arch/mips/au1000/common/power.c b/arch/mips/au1000/common/power.c
index 31256b85df6d..3901e8e04755 100644
--- a/arch/mips/au1000/common/power.c
+++ b/arch/mips/au1000/common/power.c
@@ -461,7 +461,7 @@ static struct ctl_table pm_dir_table[] = {
  */
 static int __init pm_init(void)
 {
-        register_sysctl_table(pm_dir_table, 0);
+        register_sysctl_table(pm_dir_table);
         return 0;
 }
 
diff --git a/arch/mips/lasat/sysctl.c b/arch/mips/lasat/sysctl.c
index c04e82fb9d59..699ab1886ceb 100644
--- a/arch/mips/lasat/sysctl.c
+++ b/arch/mips/lasat/sysctl.c
@@ -432,7 +432,7 @@ static int __init lasat_register_sysctl(void)
         struct ctl_table_header *lasat_table_header;
 
         lasat_table_header =
-                register_sysctl_table(lasat_root_table, 0);
+                register_sysctl_table(lasat_root_table);
 
         return 0;
 }
diff --git a/arch/powerpc/kernel/idle.c b/arch/powerpc/kernel/idle.c
index 8b27bb1a5b31..6e7f50967bab 100644
--- a/arch/powerpc/kernel/idle.c
+++ b/arch/powerpc/kernel/idle.c
@@ -125,7 +125,7 @@ static ctl_table powersave_nap_sysctl_root[] = {
 static int __init
 register_powersave_nap_sysctl(void)
 {
-        register_sysctl_table(powersave_nap_sysctl_root, 0);
+        register_sysctl_table(powersave_nap_sysctl_root);
 
         return 0;
 }
diff --git a/arch/ppc/kernel/ppc_htab.c b/arch/ppc/kernel/ppc_htab.c
index 77b20ff672b8..0a7e42d54eaf 100644
--- a/arch/ppc/kernel/ppc_htab.c
+++ b/arch/ppc/kernel/ppc_htab.c
@@ -457,7 +457,7 @@ static ctl_table htab_sysctl_root[] = {
 static int __init
 register_ppc_htab_sysctl(void)
 {
-        register_sysctl_table(htab_sysctl_root, 0);
+        register_sysctl_table(htab_sysctl_root);
 
         return 0;
 }
diff --git a/arch/s390/appldata/appldata_base.c b/arch/s390/appldata/appldata_base.c
index 58cefcf2d2cc..0c3cf4b16ae4 100644
--- a/arch/s390/appldata/appldata_base.c
+++ b/arch/s390/appldata/appldata_base.c
@@ -506,7 +506,7 @@ int appldata_register_ops(struct appldata_ops *ops)
 
         ops->ctl_table[3].ctl_name = 0;
 
-        ops->sysctl_header = register_sysctl_table(ops->ctl_table,0);
+        ops->sysctl_header = register_sysctl_table(ops->ctl_table);
 
         P_INFO("%s-ops registered!\n", ops->name);
         return 0;
@@ -606,7 +606,7 @@ static int __init appldata_init(void)
         /* Register cpu hotplug notifier */
         register_hotcpu_notifier(&appldata_nb);
 
-        appldata_sysctl_header = register_sysctl_table(appldata_dir_table, 0);
+        appldata_sysctl_header = register_sysctl_table(appldata_dir_table);
 #ifdef MODULE
         appldata_dir_table[0].de->owner = THIS_MODULE;
         appldata_table[0].de->owner = THIS_MODULE;
diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index 1b95148dc73b..eca3fe595ff4 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -1053,7 +1053,7 @@ __init debug_init(void)
 {
         int rc = 0;
 
-        s390dbf_sysctl_header = register_sysctl_table(s390dbf_dir_table, 0);
+        s390dbf_sysctl_header = register_sysctl_table(s390dbf_dir_table);
         down(&debug_lock);
         debug_debugfs_root_entry = debugfs_create_dir(DEBUG_DIR_ROOT,NULL);
         printk(KERN_INFO "debug: Initialization complete\n");
diff --git a/arch/s390/mm/cmm.c b/arch/s390/mm/cmm.c
index c6d6ddeb5e33..c5b2f4f078bc 100644
--- a/arch/s390/mm/cmm.c
+++ b/arch/s390/mm/cmm.c
@@ -418,7 +418,7 @@ cmm_init (void)
         int rc = -ENOMEM;
 
 #ifdef CONFIG_CMM_PROC
-        cmm_sysctl_header = register_sysctl_table(cmm_dir_table, 0);
+        cmm_sysctl_header = register_sysctl_table(cmm_dir_table);
         if (!cmm_sysctl_header)
                 goto out;
 #endif
diff --git a/arch/sh64/kernel/traps.c b/arch/sh64/kernel/traps.c
index 02cca742cf03..c346d7ef9280 100644
--- a/arch/sh64/kernel/traps.c
+++ b/arch/sh64/kernel/traps.c
@@ -960,7 +960,7 @@ static ctl_table sh64_root[] = {
 static struct ctl_table_header *sysctl_header;
 static int __init init_sysctl(void)
 {
-        sysctl_header = register_sysctl_table(sh64_root, 0);
+        sysctl_header = register_sysctl_table(sh64_root);
         return 0;
 }
 
diff --git a/arch/x86_64/ia32/ia32_binfmt.c b/arch/x86_64/ia32/ia32_binfmt.c
index 354a0a01ec2d..071100ea1251 100644
--- a/arch/x86_64/ia32/ia32_binfmt.c
+++ b/arch/x86_64/ia32/ia32_binfmt.c
@@ -367,7 +367,7 @@ static ctl_table abi_root_table2[] = {
 
 static __init int ia32_binfmt_init(void)
 { 
-        register_sysctl_table(abi_root_table2, 0);
+        register_sysctl_table(abi_root_table2);
         return 0;
 }
 __initcall(ia32_binfmt_init);
diff --git a/arch/x86_64/kernel/vsyscall.c b/arch/x86_64/kernel/vsyscall.c
index c0e2b48be308..313dc6ad780b 100644
--- a/arch/x86_64/kernel/vsyscall.c
+++ b/arch/x86_64/kernel/vsyscall.c
@@ -301,7 +301,7 @@ static int __init vsyscall_init(void)
         BUG_ON((unsigned long) &vgetcpu != VSYSCALL_ADDR(__NR_vgetcpu));
         map_vsyscall();
 #ifdef CONFIG_SYSCTL
-        register_sysctl_table(kernel_root_table2, 0);
+        register_sysctl_table(kernel_root_table2);
 #endif
         on_each_cpu(cpu_vsyscall_init, NULL, 0, 1);
         hotcpu_notifier(cpu_vsyscall_notifier, 0);
diff --git a/arch/x86_64/mm/init.c b/arch/x86_64/mm/init.c
index a5c12ea57683..ec31534eb104 100644
--- a/arch/x86_64/mm/init.c
+++ b/arch/x86_64/mm/init.c
@@ -734,7 +734,7 @@ static ctl_table debug_root_table2[] = {
 
 static __init int x8664_sysctl_init(void)
 { 
-        register_sysctl_table(debug_root_table2, 0);
+        register_sysctl_table(debug_root_table2);
         return 0;
 }
 __initcall(x8664_sysctl_init);
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index 14f72c477acc..b36f44d4d1bf 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -3553,7 +3553,7 @@ static void cdrom_sysctl_register(void)
         if (initialized == 1)
                 return;
 
-        cdrom_sysctl_header = register_sysctl_table(cdrom_root_table, 0);
+        cdrom_sysctl_header = register_sysctl_table(cdrom_root_table);
 
         /* set the defaults */
         cdrom_sysctl_settings.autoclose = autoclose;
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index 81be1db18c4b..0be700f4e8fd 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -1018,7 +1018,7 @@ static int __init hpet_init(void)
         if (result < 0)
                 return -ENODEV;
 
-        sysctl_header = register_sysctl_table(dev_root, 0);
+        sysctl_header = register_sysctl_table(dev_root);
 
         result = acpi_bus_register_driver(&hpet_acpi_driver);
         if (result < 0) {
diff --git a/drivers/char/ipmi/ipmi_poweroff.c b/drivers/char/ipmi/ipmi_poweroff.c
index b3ae65e2ba0c..e02893b7b300 100644
--- a/drivers/char/ipmi/ipmi_poweroff.c
+++ b/drivers/char/ipmi/ipmi_poweroff.c
@@ -686,7 +686,7 @@ static int ipmi_poweroff_init (void)
                 printk(KERN_INFO PFX "Power cycle is enabled.\n");
 
 #ifdef CONFIG_PROC_FS
-        ipmi_table_header = register_sysctl_table(ipmi_root_table, 0);
+        ipmi_table_header = register_sysctl_table(ipmi_root_table);
         if (!ipmi_table_header) {
                 printk(KERN_ERR PFX "Unable to register powercycle sysctl\n");
                 rv = -ENOMEM;
diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c
index 9620abb2a6dc..c7dac9b13351 100644
--- a/drivers/char/rtc.c
+++ b/drivers/char/rtc.c
@@ -316,7 +316,7 @@ static struct ctl_table_header *sysctl_header;
 
 static int __init init_sysctl(void)
 {
-    sysctl_header = register_sysctl_table(dev_root, 0);
+    sysctl_header = register_sysctl_table(dev_root);
     return 0;
 }
 
diff --git a/drivers/macintosh/mac_hid.c b/drivers/macintosh/mac_hid.c
index 038a9102a8be..c1fd816e9f09 100644
--- a/drivers/macintosh/mac_hid.c
+++ b/drivers/macintosh/mac_hid.c
@@ -138,7 +138,7 @@ int __init mac_hid_init(void)
                 return err;
 
 #if defined(CONFIG_SYSCTL)
-        mac_hid_sysctl_header = register_sysctl_table(mac_hid_root_dir, 0);
+        mac_hid_sysctl_header = register_sysctl_table(mac_hid_root_dir);
 #endif /* CONFIG_SYSCTL */
 
         return 0;
diff --git a/drivers/md/md.c b/drivers/md/md.c
index ee86df8092a1..05febfd9f071 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -5581,7 +5581,7 @@ static int __init md_init(void)
                             md_probe, NULL, NULL);
 
         register_reboot_notifier(&md_notifier);
-        raid_table_header = register_sysctl_table(raid_root_table, 0);
+        raid_table_header = register_sysctl_table(raid_root_table);
 
         md_geninit();
         return (0);
diff --git a/drivers/net/wireless/arlan-proc.c b/drivers/net/wireless/arlan-proc.c
index 20499a6215cc..015abd928ab0 100644
--- a/drivers/net/wireless/arlan-proc.c
+++ b/drivers/net/wireless/arlan-proc.c
@@ -1244,7 +1244,7 @@ int __init init_arlan_proc(void)
                 return 0;
         for (i = 0; i < MAX_ARLANS && arlan_device[i]; i++)
                 arlan_table[i].ctl_name = i + 1;
-        arlan_device_sysctl_header = register_sysctl_table(arlan_root_table, 0);
+        arlan_device_sysctl_header = register_sysctl_table(arlan_root_table);
         if (!arlan_device_sysctl_header)
                 return -1;
 
diff --git a/drivers/parport/procfs.c b/drivers/parport/procfs.c
index 9a7f1d49dec1..bdbdab9285ca 100644
--- a/drivers/parport/procfs.c
+++ b/drivers/parport/procfs.c
@@ -518,7 +518,7 @@ int parport_proc_register(struct parport *port)
         t->parport_dir[0].child = t->port_dir;
         t->dev_dir[0].child = t->parport_dir;
 
-        t->sysctl_header = register_sysctl_table(t->dev_dir, 0);
+        t->sysctl_header = register_sysctl_table(t->dev_dir);
         if (t->sysctl_header == NULL) {
                 kfree(t);
                 t = NULL;
@@ -574,7 +574,7 @@ int parport_device_proc_register(struct pardevice *device)
         t->device_dir[0].child = t->vars;
         t->vars[0].data = &device->timeslice;
 
-        t->sysctl_header = register_sysctl_table(t->dev_dir, 0);
+        t->sysctl_header = register_sysctl_table(t->dev_dir);
         if (t->sysctl_header == NULL) {
                 kfree(t);
                 t = NULL;
@@ -597,7 +597,7 @@ int parport_device_proc_unregister(struct pardevice *device)
 static int __init parport_default_proc_register(void)
 {
         parport_default_sysctl_table.sysctl_header =
-                register_sysctl_table(parport_default_sysctl_table.dev_dir, 0);
+                register_sysctl_table(parport_default_sysctl_table.dev_dir);
         return 0;
 }
 
diff --git a/drivers/scsi/scsi_sysctl.c b/drivers/scsi/scsi_sysctl.c
index b16b775da7cc..6cfaaa2d0c81 100644
--- a/drivers/scsi/scsi_sysctl.c
+++ b/drivers/scsi/scsi_sysctl.c
@@ -41,7 +41,7 @@ static struct ctl_table_header *scsi_table_header;
 
 int __init scsi_init_sysctl(void)
 {
-        scsi_table_header = register_sysctl_table(scsi_root_table, 0);
+        scsi_table_header = register_sysctl_table(scsi_root_table);
         if (!scsi_table_header)
                 return -ENOMEM;
         return 0;
diff --git a/fs/coda/sysctl.c b/fs/coda/sysctl.c
index 8e50642f57e8..c57a1fa7cf23 100644
--- a/fs/coda/sysctl.c
+++ b/fs/coda/sysctl.c
@@ -271,7 +271,7 @@ void coda_sysctl_init(void)
 
 #ifdef CONFIG_SYSCTL
         if ( !fs_table_header )
-                fs_table_header = register_sysctl_table(fs_table, 0);
+                fs_table_header = register_sysctl_table(fs_table);
 #endif 
 }
 
diff --git a/fs/dquot.c b/fs/dquot.c
index 9eb166f91489..b16f991662c1 100644
--- a/fs/dquot.c
+++ b/fs/dquot.c
@@ -1841,7 +1841,7 @@ static int __init dquot_init(void)
 
         printk(KERN_NOTICE "VFS: Disk quotas %s\n", __DQUOT_VERSION__);
 
-        register_sysctl_table(sys_table, 0);
+        register_sysctl_table(sys_table);
 
         dquot_cachep = kmem_cache_create("dquot", 
                         sizeof(struct dquot), sizeof(unsigned long) * 4,
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 80fcacc1acf9..50cb8daba4e5 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -512,7 +512,7 @@ module_param(nsm_use_hostnames, bool, 0644);
 
 static int __init init_nlm(void)
 {
-        nlm_sysctl_table = register_sysctl_table(nlm_sysctl_root, 0);
+        nlm_sysctl_table = register_sysctl_table(nlm_sysctl_root);
         return nlm_sysctl_table ? 0 : -ENOMEM;
 }
 
diff --git a/fs/nfs/sysctl.c b/fs/nfs/sysctl.c
index 3ea50ac64820..fcdcafbb3293 100644
--- a/fs/nfs/sysctl.c
+++ b/fs/nfs/sysctl.c
@@ -75,7 +75,7 @@ static ctl_table nfs_cb_sysctl_root[] = {
 
 int nfs_register_sysctl(void)
 {
-        nfs_callback_sysctl_table = register_sysctl_table(nfs_cb_sysctl_root, 0);
+        nfs_callback_sysctl_table = register_sysctl_table(nfs_cb_sysctl_root);
         if (nfs_callback_sysctl_table == NULL)
                 return -ENOMEM;
         return 0;
diff --git a/fs/ntfs/sysctl.c b/fs/ntfs/sysctl.c
index 4757f6b7a28c..1f1ee4c9eacc 100644
--- a/fs/ntfs/sysctl.c
+++ b/fs/ntfs/sysctl.c
@@ -70,7 +70,7 @@ int ntfs_sysctl(int add)
 {
         if (add) {
                 BUG_ON(sysctls_root_table);
-                sysctls_root_table = register_sysctl_table(sysctls_root, 0);
+                sysctls_root_table = register_sysctl_table(sysctls_root);
                 if (!sysctls_root_table)
                         return -ENOMEM;
 #ifdef CONFIG_PROC_FS
diff --git a/fs/ocfs2/cluster/nodemanager.c b/fs/ocfs2/cluster/nodemanager.c
index df763c7fd083..9f5ad0f01ce0 100644
--- a/fs/ocfs2/cluster/nodemanager.c
+++ b/fs/ocfs2/cluster/nodemanager.c
@@ -922,7 +922,7 @@ static int __init init_o2nm(void)
         o2hb_init();
         o2net_init();
 
-        ocfs2_table_header = register_sysctl_table(ocfs2_root_table, 0);
+        ocfs2_table_header = register_sysctl_table(ocfs2_root_table);
         if (!ocfs2_table_header) {
                 printk(KERN_ERR "nodemanager: unable to register sysctl\n");
                 ret = -ENOMEM; /* or something. */
diff --git a/fs/xfs/linux-2.6/xfs_sysctl.c b/fs/xfs/linux-2.6/xfs_sysctl.c
index 5c46c35a97a5..cd6eaa44aa2b 100644
--- a/fs/xfs/linux-2.6/xfs_sysctl.c
+++ b/fs/xfs/linux-2.6/xfs_sysctl.c
@@ -251,7 +251,7 @@ static ctl_table xfs_root_table[] = {
 void
 xfs_sysctl_register(void)
 {
-        xfs_table_header = register_sysctl_table(xfs_root_table, 0);
+        xfs_table_header = register_sysctl_table(xfs_root_table);
 }
 
 void
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 51acdec88a61..396b8d984c5d 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -1035,8 +1035,8 @@ struct ctl_table_header
         struct completion *unregistering;
 };
 
-struct ctl_table_header * register_sysctl_table(ctl_table * table, 
-                                                int insert_at_head);
+struct ctl_table_header * register_sysctl_table(ctl_table * table);
+
 void unregister_sysctl_table(struct ctl_table_header * table);
 
 #else /* __KERNEL__ */
diff --git a/ipc/ipc_sysctl.c b/ipc/ipc_sysctl.c
index 2c17d83b9093..a88934a1b769 100644
--- a/ipc/ipc_sysctl.c
+++ b/ipc/ipc_sysctl.c
@@ -176,7 +176,7 @@ static struct ctl_table ipc_root_table[] = {
 
 static int __init ipc_sysctl_init(void)
 {
-        register_sysctl_table(ipc_root_table, 0);
+        register_sysctl_table(ipc_root_table);
         return 0;
 }
 
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 7a8ce610fda2..0b5ecbe5f045 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -1255,7 +1255,7 @@ static int __init init_mqueue_fs(void)
                 return -ENOMEM;
 
         /* ignore failues - they are not fatal */
-        mq_sysctl_table = register_sysctl_table(mq_sysctl_root, 0);
+        mq_sysctl_table = register_sysctl_table(mq_sysctl_root);
 
         error = register_filesystem(&mqueue_fs_type);
         if (error)
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index cb46d0156840..6ccb6cc19e28 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1244,7 +1244,6 @@ int do_sysctl_strategy (ctl_table *table,
 /**
  * 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. 
@@ -1310,8 +1309,7 @@ int do_sysctl_strategy (ctl_table *table,
  * 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 *register_sysctl_table(ctl_table * table)
 {
         struct ctl_table_header *tmp;
         tmp = kmalloc(sizeof(struct ctl_table_header), GFP_KERNEL);
@@ -1322,10 +1320,7 @@ struct ctl_table_header *register_sysctl_table(ctl_table * table,
         tmp->used = 0;
         tmp->unregistering = NULL;
         spin_lock(&sysctl_lock);
-        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);
+        list_add_tail(&tmp->ctl_entry, &root_table_header.ctl_entry);
         spin_unlock(&sysctl_lock);
 #ifdef CONFIG_PROC_SYSCTL
         register_proc_table(table, proc_sys_root, tmp);
diff --git a/kernel/utsname_sysctl.c b/kernel/utsname_sysctl.c
index 324aa1341b5f..f22b9dbd2a9c 100644
--- a/kernel/utsname_sysctl.c
+++ b/kernel/utsname_sysctl.c
@@ -139,7 +139,7 @@ static struct ctl_table uts_root_table[] = {
 
 static int __init utsname_sysctl_init(void)
 {
-        register_sysctl_table(uts_root_table, 0);
+        register_sysctl_table(uts_root_table);
         return 0;
 }
 
diff --git a/net/appletalk/sysctl_net_atalk.c b/net/appletalk/sysctl_net_atalk.c
index 4f806b6dd227..7df1778e221a 100644
--- a/net/appletalk/sysctl_net_atalk.c
+++ b/net/appletalk/sysctl_net_atalk.c
@@ -73,7 +73,7 @@ static struct ctl_table_header *atalk_table_header;
 
 void atalk_register_sysctl(void)
 {
-        atalk_table_header = register_sysctl_table(atalk_root_table, 0);
+        atalk_table_header = register_sysctl_table(atalk_root_table);
 }
 
 void atalk_unregister_sysctl(void)
diff --git a/net/ax25/sysctl_net_ax25.c b/net/ax25/sysctl_net_ax25.c
index afdba0466f14..443a83676638 100644
--- a/net/ax25/sysctl_net_ax25.c
+++ b/net/ax25/sysctl_net_ax25.c
@@ -245,7 +245,7 @@ void ax25_register_sysctl(void)
 
         ax25_dir_table[0].child = ax25_table;
 
-        ax25_table_header = register_sysctl_table(ax25_root_table, 0);
+        ax25_table_header = register_sysctl_table(ax25_root_table);
 }
 
 void ax25_unregister_sysctl(void)
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index a0744e653f09..7712d76f06ba 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -957,7 +957,7 @@ int __init br_netfilter_init(void)
         if (ret < 0)
                 return ret;
 #ifdef CONFIG_SYSCTL
-        brnf_sysctl_header = register_sysctl_table(brnf_net_table, 0);
+        brnf_sysctl_header = register_sysctl_table(brnf_net_table);
         if (brnf_sysctl_header == NULL) {
                 printk(KERN_WARNING
                        "br_netfilter: can't register to sysctl.\n");
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index a1525fb7a81e..3183142c6044 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -2707,7 +2707,7 @@ int neigh_sysctl_register(struct net_device *dev, struct neigh_parms *p,
         t->neigh_proto_dir[0].child    = t->neigh_neigh_dir;
         t->neigh_root_dir[0].child     = t->neigh_proto_dir;
 
-        t->sysctl_header = register_sysctl_table(t->neigh_root_dir, 0);
+        t->sysctl_header = register_sysctl_table(t->neigh_root_dir);
         if (!t->sysctl_header) {
                 err = -ENOBUFS;
                 goto free_procname;
diff --git a/net/dccp/sysctl.c b/net/dccp/sysctl.c
index 33916318ed6d..1260aabac5e1 100644
--- a/net/dccp/sysctl.c
+++ b/net/dccp/sysctl.c
@@ -127,7 +127,7 @@ static struct ctl_table_header *dccp_table_header;
 
 int __init dccp_sysctl_init(void)
 {
-        dccp_table_header = register_sysctl_table(dccp_root_table, 0);
+        dccp_table_header = register_sysctl_table(dccp_root_table);
 
         return dccp_table_header != NULL ? 0 : -ENOMEM;
 }
diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
index 2b2c7fe45a71..0977df42c205 100644
--- a/net/decnet/dn_dev.c
+++ b/net/decnet/dn_dev.c
@@ -282,7 +282,7 @@ static void dn_dev_sysctl_register(struct net_device *dev, struct dn_dev_parms *
         t->dn_dev_root_dir[0].de = NULL;
         t->dn_dev_vars[0].extra1 = (void *)dev;
 
-        t->sysctl_header = register_sysctl_table(t->dn_dev_root_dir, 0);
+        t->sysctl_header = register_sysctl_table(t->dn_dev_root_dir);
         if (t->sysctl_header == NULL)
                 kfree(t);
         else
diff --git a/net/decnet/sysctl_net_decnet.c b/net/decnet/sysctl_net_decnet.c
index 70a8cf2775df..52e40d7eb22d 100644
--- a/net/decnet/sysctl_net_decnet.c
+++ b/net/decnet/sysctl_net_decnet.c
@@ -491,7 +491,7 @@ static ctl_table dn_root_table[] = {
 
 void dn_register_sysctl(void)
 {
-        dn_table_header = register_sysctl_table(dn_root_table, 0);
+        dn_table_header = register_sysctl_table(dn_root_table);
 }
 
 void dn_unregister_sysctl(void)
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 52db485a88f3..bf3eb2dc7662 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1606,7 +1606,7 @@ static void devinet_sysctl_register(struct in_device *in_dev,
         t->devinet_root_dir[0].child  = t->devinet_proto_dir;
         t->devinet_root_dir[0].de     = NULL;
 
-        t->sysctl_header = register_sysctl_table(t->devinet_root_dir, 0);
+        t->sysctl_header = register_sysctl_table(t->devinet_root_dir);
         if (!t->sysctl_header)
             goto free_procname;
 
@@ -1640,7 +1640,7 @@ void __init devinet_init(void)
         rtnetlink_links[PF_INET] = inet_rtnetlink_table;
 #ifdef CONFIG_SYSCTL
         devinet_sysctl.sysctl_header =
-                register_sysctl_table(devinet_sysctl.devinet_root_dir, 0);
+                register_sysctl_table(devinet_sysctl.devinet_root_dir);
         devinet_sysctl_register(NULL, &ipv4_devconf_dflt);
 #endif
 }
diff --git a/net/ipv4/ipvs/ip_vs_ctl.c b/net/ipv4/ipvs/ip_vs_ctl.c
index 8b08d9cdcbc8..b3050a6817e7 100644
--- a/net/ipv4/ipvs/ip_vs_ctl.c
+++ b/net/ipv4/ipvs/ip_vs_ctl.c
@@ -2359,7 +2359,7 @@ int ip_vs_control_init(void)
         proc_net_fops_create("ip_vs", 0, &ip_vs_info_fops);
         proc_net_fops_create("ip_vs_stats",0, &ip_vs_stats_fops);
 
-        sysctl_header = register_sysctl_table(vs_root_table, 0);
+        sysctl_header = register_sysctl_table(vs_root_table);
 
         /* Initialize ip_vs_svc_table, ip_vs_svc_fwm_table, ip_vs_rtable */
         for(idx = 0; idx < IP_VS_SVC_TAB_SIZE; idx++)  {
diff --git a/net/ipv4/ipvs/ip_vs_lblc.c b/net/ipv4/ipvs/ip_vs_lblc.c
index 76fd1fb91878..c801273cb881 100644
--- a/net/ipv4/ipvs/ip_vs_lblc.c
+++ b/net/ipv4/ipvs/ip_vs_lblc.c
@@ -583,7 +583,7 @@ static struct ip_vs_scheduler ip_vs_lblc_scheduler =
 static int __init ip_vs_lblc_init(void)
 {
         INIT_LIST_HEAD(&ip_vs_lblc_scheduler.n_list);
-        sysctl_header = register_sysctl_table(lblc_root_table, 0);
+        sysctl_header = register_sysctl_table(lblc_root_table);
         return register_ip_vs_scheduler(&ip_vs_lblc_scheduler);
 }
 
diff --git a/net/ipv4/ipvs/ip_vs_lblcr.c b/net/ipv4/ipvs/ip_vs_lblcr.c
index bf1e7f272b84..23f9b9e73c85 100644
--- a/net/ipv4/ipvs/ip_vs_lblcr.c
+++ b/net/ipv4/ipvs/ip_vs_lblcr.c
@@ -841,7 +841,7 @@ static struct ip_vs_scheduler ip_vs_lblcr_scheduler =
 static int __init ip_vs_lblcr_init(void)
 {
         INIT_LIST_HEAD(&ip_vs_lblcr_scheduler.n_list);
-        sysctl_header = register_sysctl_table(lblcr_root_table, 0);
+        sysctl_header = register_sysctl_table(lblcr_root_table);
 #ifdef CONFIG_IP_VS_LBLCR_DEBUG
         proc_net_create("ip_vs_lblcr", 0, ip_vs_lblcr_getinfo);
 #endif
diff --git a/net/ipv4/netfilter/ip_conntrack_proto_sctp.c b/net/ipv4/netfilter/ip_conntrack_proto_sctp.c
index 2c02ff03bc4c..e6942992b2f6 100644
--- a/net/ipv4/netfilter/ip_conntrack_proto_sctp.c
+++ b/net/ipv4/netfilter/ip_conntrack_proto_sctp.c
@@ -622,7 +622,7 @@ static int __init ip_conntrack_proto_sctp_init(void)
         }
 
 #ifdef CONFIG_SYSCTL
-        ip_ct_sysctl_header = register_sysctl_table(ip_ct_net_table, 0);
+        ip_ct_sysctl_header = register_sysctl_table(ip_ct_net_table);
         if (ip_ct_sysctl_header == NULL) {
                 ret = -ENOMEM;
                 printk("ip_conntrack_proto_sctp: can't register to sysctl.\n");
diff --git a/net/ipv4/netfilter/ip_conntrack_standalone.c b/net/ipv4/netfilter/ip_conntrack_standalone.c
index c7c1ec61b0f5..56b2f7546d1e 100644
--- a/net/ipv4/netfilter/ip_conntrack_standalone.c
+++ b/net/ipv4/netfilter/ip_conntrack_standalone.c
@@ -848,7 +848,7 @@ static int __init ip_conntrack_standalone_init(void)
                 goto cleanup_proc_stat;
         }
 #ifdef CONFIG_SYSCTL
-        ip_ct_sysctl_header = register_sysctl_table(ip_ct_net_table, 0);
+        ip_ct_sysctl_header = register_sysctl_table(ip_ct_net_table);
         if (ip_ct_sysctl_header == NULL) {
                 printk("ip_conntrack: can't register to sysctl.\n");
                 ret = -ENOMEM;
diff --git a/net/ipv4/netfilter/ip_queue.c b/net/ipv4/netfilter/ip_queue.c
index 68bf19f3b01c..a14798a850d7 100644
--- a/net/ipv4/netfilter/ip_queue.c
+++ b/net/ipv4/netfilter/ip_queue.c
@@ -693,7 +693,7 @@ static int __init ip_queue_init(void)
         }
 
         register_netdevice_notifier(&ipq_dev_notifier);
-        ipq_sysctl_header = register_sysctl_table(ipq_root_table, 0);
+        ipq_sysctl_header = register_sysctl_table(ipq_root_table);
 
         status = nf_register_queue_handler(PF_INET, &nfqh);
         if (status < 0) {
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 4702954bf0ac..34d80b4aaa04 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4029,7 +4029,7 @@ static void addrconf_sysctl_register(struct inet6_dev *idev, struct ipv6_devconf
         t->addrconf_root_dir[0].child = t->addrconf_proto_dir;
         t->addrconf_root_dir[0].de = NULL;
 
-        t->sysctl_header = register_sysctl_table(t->addrconf_root_dir, 0);
+        t->sysctl_header = register_sysctl_table(t->addrconf_root_dir);
         if (t->sysctl_header == NULL)
                 goto free_procname;
         else
@@ -4114,7 +4114,7 @@ int __init addrconf_init(void)
         rtnetlink_links[PF_INET6] = inet6_rtnetlink_table;
 #ifdef CONFIG_SYSCTL
         addrconf_sysctl.sysctl_header =
-                register_sysctl_table(addrconf_sysctl.addrconf_root_dir, 0);
+                register_sysctl_table(addrconf_sysctl.addrconf_root_dir);
         addrconf_sysctl_register(NULL, &ipv6_devconf_dflt);
 #endif
 
diff --git a/net/ipv6/netfilter/ip6_queue.c b/net/ipv6/netfilter/ip6_queue.c
index 58847d3b61e5..fdb30a5916e5 100644
--- a/net/ipv6/netfilter/ip6_queue.c
+++ b/net/ipv6/netfilter/ip6_queue.c
@@ -683,7 +683,7 @@ static int __init ip6_queue_init(void)
         }
 
         register_netdevice_notifier(&ipq_dev_notifier);
-        ipq_sysctl_header = register_sysctl_table(ipq_root_table, 0);
+        ipq_sysctl_header = register_sysctl_table(ipq_root_table);
 
         status = nf_register_queue_handler(PF_INET6, &nfqh);
         if (status < 0) {
diff --git a/net/ipv6/sysctl_net_ipv6.c b/net/ipv6/sysctl_net_ipv6.c
index 25e8e7783fee..3fb44277207b 100644
--- a/net/ipv6/sysctl_net_ipv6.c
+++ b/net/ipv6/sysctl_net_ipv6.c
@@ -107,7 +107,7 @@ static ctl_table ipv6_root_table[] = {
 
 void ipv6_sysctl_register(void)
 {
-        ipv6_sysctl_header = register_sysctl_table(ipv6_root_table, 0);
+        ipv6_sysctl_header = register_sysctl_table(ipv6_root_table);
 }
 
 void ipv6_sysctl_unregister(void)
diff --git a/net/ipx/sysctl_net_ipx.c b/net/ipx/sysctl_net_ipx.c
index 0397b0985b79..0cf526450536 100644
--- a/net/ipx/sysctl_net_ipx.c
+++ b/net/ipx/sysctl_net_ipx.c
@@ -52,7 +52,7 @@ static struct ctl_table_header *ipx_table_header;
 
 void ipx_register_sysctl(void)
 {
-        ipx_table_header = register_sysctl_table(ipx_root_table, 0);
+        ipx_table_header = register_sysctl_table(ipx_root_table);
 }
 
 void ipx_unregister_sysctl(void)
diff --git a/net/irda/irsysctl.c b/net/irda/irsysctl.c
index bb53ba0be585..2e968e7d8fea 100644
--- a/net/irda/irsysctl.c
+++ b/net/irda/irsysctl.c
@@ -274,7 +274,7 @@ static struct ctl_table_header *irda_table_header;
  */
 int __init irda_sysctl_register(void)
 {
-        irda_table_header = register_sysctl_table(irda_root_table, 0);
+        irda_table_header = register_sysctl_table(irda_root_table);
         if (!irda_table_header)
                 return -ENOMEM;
 
diff --git a/net/llc/sysctl_net_llc.c b/net/llc/sysctl_net_llc.c
index bcec7e1eda95..46992d036017 100644
--- a/net/llc/sysctl_net_llc.c
+++ b/net/llc/sysctl_net_llc.c
@@ -116,7 +116,7 @@ static struct ctl_table_header *llc_table_header;
 
 int __init llc_sysctl_init(void)
 {
-        llc_table_header = register_sysctl_table(llc_root_table, 0);
+        llc_table_header = register_sysctl_table(llc_root_table);
 
         return llc_table_header ? 0 : -ENOMEM;
 }
diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c
index a0bba481d70d..b8586360e519 100644
--- a/net/netfilter/nf_conntrack_standalone.c
+++ b/net/netfilter/nf_conntrack_standalone.c
@@ -445,7 +445,7 @@ static int __init nf_conntrack_standalone_init(void)
         proc_stat->owner = THIS_MODULE;
 #endif
 #ifdef CONFIG_SYSCTL
-        nf_ct_sysctl_header = register_sysctl_table(nf_ct_net_table, 0);
+        nf_ct_sysctl_header = register_sysctl_table(nf_ct_net_table);
         if (nf_ct_sysctl_header == NULL) {
                 printk("nf_conntrack: can't register to sysctl.\n");
                 ret = -ENOMEM;
diff --git a/net/netfilter/nf_sysctl.c b/net/netfilter/nf_sysctl.c
index 06ddddb2911f..ee34589e48a4 100644
--- a/net/netfilter/nf_sysctl.c
+++ b/net/netfilter/nf_sysctl.c
@@ -56,7 +56,7 @@ nf_register_sysctl_table(struct ctl_table *path, struct ctl_table *table)
         path = path_dup(path, table);
         if (path == NULL)
                 return NULL;
-        header = register_sysctl_table(path, 0);
+        header = register_sysctl_table(path);
         if (header == NULL)
                 path_free(path, table);
         return header;
diff --git a/net/netrom/sysctl_net_netrom.c b/net/netrom/sysctl_net_netrom.c
index 6ca96a56663c..2ea68da01fb8 100644
--- a/net/netrom/sysctl_net_netrom.c
+++ b/net/netrom/sysctl_net_netrom.c
@@ -192,7 +192,7 @@ static ctl_table nr_root_table[] = {
 
 void __init nr_register_sysctl(void)
 {
-        nr_table_header = register_sysctl_table(nr_root_table, 0);
+        nr_table_header = register_sysctl_table(nr_root_table);
 }
 
 void nr_unregister_sysctl(void)
diff --git a/net/rose/sysctl_net_rose.c b/net/rose/sysctl_net_rose.c
index b9210461a8b4..455b0555a669 100644
--- a/net/rose/sysctl_net_rose.c
+++ b/net/rose/sysctl_net_rose.c
@@ -160,7 +160,7 @@ static ctl_table rose_root_table[] = {
 
 void __init rose_register_sysctl(void)
 {
-        rose_table_header = register_sysctl_table(rose_root_table, 0);
+        rose_table_header = register_sysctl_table(rose_root_table);
 }
 
 void rose_unregister_sysctl(void)
diff --git a/net/rxrpc/sysctl.c b/net/rxrpc/sysctl.c
index 0755ae028e43..884290754af7 100644
--- a/net/rxrpc/sysctl.c
+++ b/net/rxrpc/sysctl.c
@@ -97,7 +97,7 @@ static ctl_table rxrpc_dir_sysctl_table[] = {
 int rxrpc_sysctl_init(void)
 {
 #ifdef CONFIG_SYSCTL
-        rxrpc_sysctl = register_sysctl_table(rxrpc_dir_sysctl_table, 0);
+        rxrpc_sysctl = register_sysctl_table(rxrpc_dir_sysctl_table);
         if (!rxrpc_sysctl)
                 return -ENOMEM;
 #endif /* CONFIG_SYSCTL */
diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
index 633cd178654b..e2c679baf912 100644
--- a/net/sctp/sysctl.c
+++ b/net/sctp/sysctl.c
@@ -254,7 +254,7 @@ static struct ctl_table_header * sctp_sysctl_header;
 /* Sysctl registration.  */
 void sctp_sysctl_register(void)
 {
-        sctp_sysctl_header = register_sysctl_table(sctp_root_table, 0);
+        sctp_sysctl_header = register_sysctl_table(sctp_root_table);
 }
 
 /* Sysctl deregistration.  */
diff --git a/net/sunrpc/sysctl.c b/net/sunrpc/sysctl.c
index 1169798bf271..738db32a287d 100644
--- a/net/sunrpc/sysctl.c
+++ b/net/sunrpc/sysctl.c
@@ -36,7 +36,7 @@ void
 rpc_register_sysctl(void)
 {
         if (!sunrpc_table_header)
-                sunrpc_table_header = register_sysctl_table(sunrpc_table, 0);
+                sunrpc_table_header = register_sysctl_table(sunrpc_table);
 }
 
 void
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 5a9f6d840e82..a5a32029e728 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -1636,7 +1636,7 @@ int init_socket_xprt(void)
 {
 #ifdef RPC_DEBUG
         if (!sunrpc_table_header)
-                sunrpc_table_header = register_sysctl_table(sunrpc_table, 0);
+                sunrpc_table_header = register_sysctl_table(sunrpc_table);
 #endif
 
         return 0;
diff --git a/net/unix/sysctl_net_unix.c b/net/unix/sysctl_net_unix.c
index 690ffa5d5bfb..eb0bd57ebada 100644
--- a/net/unix/sysctl_net_unix.c
+++ b/net/unix/sysctl_net_unix.c
@@ -50,7 +50,7 @@ static struct ctl_table_header * unix_sysctl_header;
 
 void unix_sysctl_register(void)
 {
-        unix_sysctl_header = register_sysctl_table(unix_root_table, 0);
+        unix_sysctl_header = register_sysctl_table(unix_root_table);
 }
 
 void unix_sysctl_unregister(void)
diff --git a/net/x25/sysctl_net_x25.c b/net/x25/sysctl_net_x25.c
index 68300d4c19cc..a59b77f18234 100644
--- a/net/x25/sysctl_net_x25.c
+++ b/net/x25/sysctl_net_x25.c
@@ -106,7 +106,7 @@ static struct ctl_table x25_root_table[] = {
 
 void __init x25_register_sysctl(void)
 {
-        x25_table_header = register_sysctl_table(x25_root_table, 0);
+        x25_table_header = register_sysctl_table(x25_root_table);
 }
 
 void x25_unregister_sysctl(void)