vt8623fb: new framebuffer driver for VIA VT8623

[powerpc.git] / kernel / sysctl.c

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index b3ee791..4073353 100644 (file)
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -76,6 +76,8 @@ extern int pid_max_min, pid_max_max;
 extern int sysctl_drop_caches;
 extern int percpu_pagelist_fraction;
 extern int compat_log;
+extern int maps_protect;
+extern int sysctl_stat_interval;
 
 /* this is needed for the proc_dointvec_minmax for [fs_]overflow UID and GID */
 static int maxolduid = 65535;
@@ -603,6 +605,16 @@ static ctl_table kern_table[] = {
                .proc_handler   = &proc_dointvec,
        },
 #endif
+#ifdef CONFIG_PROC_FS
+       {
+               .ctl_name       = CTL_UNNUMBERED,
+               .procname       = "maps_protect",
+               .data           = &maps_protect,
+               .maxlen         = sizeof(int),
+               .mode           = 0644,
+               .proc_handler   = &proc_dointvec,
+       },
+#endif
 
        { .ctl_name = 0 }
 };
@@ -846,7 +858,19 @@ static ctl_table vm_table[] = {
                .extra2         = &one_hundred,
        },
 #endif
-#ifdef CONFIG_X86_32
+#ifdef CONFIG_SMP
+       {
+               .ctl_name       = CTL_UNNUMBERED,
+               .procname       = "stat_interval",
+               .data           = &sysctl_stat_interval,
+               .maxlen         = sizeof(sysctl_stat_interval),
+               .mode           = 0644,
+               .proc_handler   = &proc_dointvec_jiffies,
+               .strategy       = &sysctl_jiffies,
+       },
+#endif
+#if defined(CONFIG_X86_32) || \
+   (defined(CONFIG_SUPERH) && defined(CONFIG_VSYSCALL))
        {
                .ctl_name       = VM_VDSO_ENABLED,
                .procname       = "vdso_enabled",
@@ -1240,6 +1264,23 @@ int do_sysctl_strategy (ctl_table *table,
 }
 #endif /* CONFIG_SYSCTL_SYSCALL */
 
+static void sysctl_set_parent(struct ctl_table *parent, struct ctl_table *table)
+{
+       for (; table->ctl_name || table->procname; table++) {
+               table->parent = parent;
+               if (table->child)
+                       sysctl_set_parent(table, table->child);
+       }
+}
+
+static __init int sysctl_init(void)
+{
+       sysctl_set_parent(NULL, root_table);
+       return 0;
+}
+
+core_initcall(sysctl_init);
+
 /**
  * register_sysctl_table - register a sysctl hierarchy
  * @table: the top-level table structure
@@ -1318,6 +1359,7 @@ struct ctl_table_header *register_sysctl_table(ctl_table * table)
        INIT_LIST_HEAD(&tmp->ctl_entry);
        tmp->used = 0;
        tmp->unregistering = NULL;
+       sysctl_set_parent(NULL, table);
        spin_lock(&sysctl_lock);
        list_add_tail(&tmp->ctl_entry, &root_table_header.ctl_entry);
        spin_unlock(&sysctl_lock);
@@ -1341,8 +1383,7 @@ void unregister_sysctl_table(struct ctl_table_header * header)
 }
 
 #else /* !CONFIG_SYSCTL */
-struct ctl_table_header * register_sysctl_table(ctl_table * table,
-                                               int insert_at_head)
+struct ctl_table_header *register_sysctl_table(ctl_table * table)
 {
        return NULL;
 }
@@ -1658,7 +1699,7 @@ static int proc_dointvec_taint(ctl_table *table, int write, struct file *filp,
 {
        int op;
 
-       if (!capable(CAP_SYS_ADMIN))
+       if (write && !capable(CAP_SYS_ADMIN))
                return -EPERM;
 
        op = OP_OR;