---

yaml --- r: 48390 b: refs/heads/master c: d912b0c h: refs/heads/master v: v3
git-mirror · Feb 14, 2007 · a651f49 · a651f49
1 parent 4c1e305
commit a651f49
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Showing 3 changed files with 20 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 77b14db502cb85a031fe8fde6c85d52f3e0acb63
+refs/heads/master: d912b0cc1a617d7c590d57b7ea971d50c7f02503
diff --git a/trunk/include/linux/sysctl.h b/trunk/include/linux/sysctl.h
@@ -1022,6 +1022,7 @@ struct ctl_table
 	int maxlen;
 	mode_t mode;
 	ctl_table *child;
+	ctl_table *parent;		/* Automatically set */
 	proc_handler *proc_handler;	/* Callback for text formatting */
 	ctl_handler *strategy;		/* Callback function for all r/w */
 	struct proc_dir_entry *de;	/* /proc control block */

diff --git a/trunk/kernel/sysctl.c b/trunk/kernel/sysctl.c
@@ -1240,6 +1240,23 @@ 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 +1335,7 @@ 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);