Merge to Fedora kernel-2.6.18-1.2224_FC5 patched with stable patch-2.6.18.1-vs2.0...

[linux-2.6.git] / kernel / sysctl.c

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index e357044..95a6d7f 100644 (file)
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -18,7 +18,6 @@
  *  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>
@@ -60,6 +59,7 @@ extern int proc_nr_files(ctl_table *table, int write, struct file *filp,
 extern int C_A_D;
 extern int sysctl_overcommit_memory;
 extern int sysctl_overcommit_ratio;
+extern int sysctl_panic_on_oom;
 extern int max_threads;
 extern int sysrq_enabled;
 extern int core_uses_pid;
@@ -73,6 +73,7 @@ extern int printk_ratelimit_burst;
 extern int pid_max_min, pid_max_max;
 extern int sysctl_drop_caches;
 extern int percpu_pagelist_fraction;
+extern int compat_log;
 
 #if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86)
 int unknown_nmi_panic;
@@ -82,16 +83,15 @@ extern int proc_unknown_nmi_panic(ctl_table *, int, struct file *,
 
 extern unsigned int vdso_enabled, vdso_populate;
 
-int exec_shield = (1<<3) | (1<<0);
+int exec_shield = (1<<0);
 /* exec_shield is a bitmask:
           0: off; vdso at STACK_TOP, 1 page below TASK_SIZE
    (1<<0) 1: on [also on if !=0]
-   (1<<1) 2: noexecstack by default
+   (1<<1) 2: force noexecstack regardless of PT_GNU_STACK
+   The old settings
    (1<<2) 4: vdso just below .text of main (unless too low)
    (1<<3) 8: vdso just below .text of PT_INTERP (unless too low)
-Yes, vdso placement is overloaded here; but exec_shield off
-is a strong incentive to place vdso at STACK_TOP, so the bit
-for vdso just below .text comes along for the ride.
+   are ignored because the vdso is placed completely randomly
 */
 
 static int __init setup_exec_shield(char *str)
@@ -156,6 +156,10 @@ extern int acct_parm[];
 extern int no_unaligned_warning;
 #endif
 
+#ifdef CONFIG_RT_MUTEXES
+extern int max_lock_depth;
+#endif
+
 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,
@@ -167,7 +171,6 @@ static struct ctl_table_header root_table_header =
 
 static ctl_table kern_table[];
 static ctl_table vm_table[];
-static ctl_table proc_table[];
 static ctl_table fs_table[];
 static ctl_table debug_table[];
 static ctl_table dev_table[];
@@ -175,7 +178,7 @@ extern ctl_table random_table[];
 #ifdef CONFIG_UNIX98_PTYS
 extern ctl_table pty_table[];
 #endif
-#ifdef CONFIG_INOTIFY
+#ifdef CONFIG_INOTIFY_USER
 extern ctl_table inotify_table[];
 #endif
 
@@ -226,12 +229,6 @@ static ctl_table root_table[] = {
                .child          = net_table,
        },
 #endif
-       {
-               .ctl_name       = CTL_PROC,
-               .procname       = "proc",
-               .mode           = 0555,
-               .child          = proc_table,
-       },
        {
                .ctl_name       = CTL_FS,
                .procname       = "fs",
@@ -462,7 +459,7 @@ static ctl_table kern_table[] = {
                .strategy       = &sysctl_string,
        },
 #endif
-#ifdef CONFIG_HOTPLUG
+#if defined(CONFIG_HOTPLUG) && defined(CONFIG_NET)
        {
                .ctl_name       = KERN_HOTPLUG,
                .procname       = "hotplug",
@@ -756,6 +753,27 @@ static ctl_table kern_table[] = {
                .proc_handler   = &proc_dointvec,
        },
 #endif
+#ifdef CONFIG_COMPAT
+       {
+               .ctl_name       = KERN_COMPAT_LOG,
+               .procname       = "compat-log",
+               .data           = &compat_log,
+               .maxlen         = sizeof (int),
+               .mode           = 0644,
+               .proc_handler   = &proc_dointvec,
+       },
+#endif
+#ifdef CONFIG_RT_MUTEXES
+       {
+               .ctl_name       = KERN_MAX_LOCK_DEPTH,
+               .procname       = "max_lock_depth",
+               .data           = &max_lock_depth,
+               .maxlen         = sizeof(int),
+               .mode           = 0644,
+               .proc_handler   = &proc_dointvec,
+       },
+#endif
+
        { .ctl_name = 0 }
 };
 
@@ -774,6 +792,14 @@ static ctl_table vm_table[] = {
                .mode           = 0644,
                .proc_handler   = &proc_dointvec,
        },
+       {
+               .ctl_name       = VM_PANIC_ON_OOM,
+               .procname       = "panic_on_oom",
+               .data           = &sysctl_panic_on_oom,
+               .maxlen         = sizeof(sysctl_panic_on_oom),
+               .mode           = 0644,
+               .proc_handler   = &proc_dointvec,
+       },
        {
                .ctl_name       = VM_OVERCOMMIT_RATIO,
                .procname       = "overcommit_ratio",
@@ -979,19 +1005,40 @@ static ctl_table vm_table[] = {
                .extra1         = &zero,
        },
        {
-               .ctl_name       = VM_ZONE_RECLAIM_INTERVAL,
-               .procname       = "zone_reclaim_interval",
-               .data           = &zone_reclaim_interval,
-               .maxlen         = sizeof(zone_reclaim_interval),
+               .ctl_name       = VM_MIN_UNMAPPED,
+               .procname       = "min_unmapped_ratio",
+               .data           = &sysctl_min_unmapped_ratio,
+               .maxlen         = sizeof(sysctl_min_unmapped_ratio),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec_jiffies,
-               .strategy       = &sysctl_jiffies,
+               .proc_handler   = &sysctl_min_unmapped_ratio_sysctl_handler,
+               .strategy       = &sysctl_intvec,
+               .extra1         = &zero,
+               .extra2         = &one_hundred,
+       },
+       {
+               .ctl_name       = VM_MIN_SLAB,
+               .procname       = "min_slab_ratio",
+               .data           = &sysctl_min_slab_ratio,
+               .maxlen         = sizeof(sysctl_min_slab_ratio),
+               .mode           = 0644,
+               .proc_handler   = &sysctl_min_slab_ratio_sysctl_handler,
+               .strategy       = &sysctl_intvec,
+               .extra1         = &zero,
+               .extra2         = &one_hundred,
+       },
+#endif
+#ifdef CONFIG_X86_32
+       {
+               .ctl_name       = VM_VDSO_ENABLED,
+               .procname       = "vdso_enabled",
+               .data           = &vdso_enabled,
+               .maxlen         = sizeof(vdso_enabled),
+               .mode           = 0644,
+               .proc_handler   = &proc_dointvec,
+               .strategy       = &sysctl_intvec,
+               .extra1         = &zero,
        },
 #endif
-       { .ctl_name = 0 }
-};
-
-static ctl_table proc_table[] = {
        { .ctl_name = 0 }
 };
 
@@ -1101,7 +1148,7 @@ static ctl_table fs_table[] = {
                .mode           = 0644,
                .proc_handler   = &proc_doulongvec_minmax,
        },
-#ifdef CONFIG_INOTIFY
+#ifdef CONFIG_INOTIFY_USER
        {
                .ctl_name       = FS_INOTIFY,
                .procname       = "inotify",