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authorAl Viro <viro@zeniv.linux.org.uk>2008-07-14 21:22:20 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2008-07-26 20:53:08 -0400
commit734550921e9b7ab924a43aa3d0bd4239dac4fbf1 (patch)
tree7be4b0808ba9860f1d953b45120262a277866021 /include
parent7ac6cd653d7c31ad6b7bb5b88c549c4ebf628c34 (diff)
[PATCH] beginning of sysctl cleanup - ctl_table_set
New object: set of sysctls [currently - root and per-net-ns]. Contains: pointer to parent set, list of tables and "should I see this set?" method (->is_seen(set)). Current lists of tables are subsumed by that; net-ns contains such a beast. ->lookup() for ctl_table_root returns pointer to ctl_table_set instead of that to ->list of that ctl_table_set. [folded compile fixes by rdd for configs without sysctl] Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include')
-rw-r--r--include/linux/sysctl.h15
-rw-r--r--include/net/net_namespace.h4
2 files changed, 16 insertions, 3 deletions
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 24141b4d1a1..c1e0cf408af 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -947,6 +947,16 @@ struct ctl_table;
struct nsproxy;
struct ctl_table_root;
+struct ctl_table_set {
+ struct list_head list;
+ struct ctl_table_set *parent;
+ int (*is_seen)(struct ctl_table_set *);
+};
+
+extern void setup_sysctl_set(struct ctl_table_set *p,
+ struct ctl_table_set *parent,
+ int (*is_seen)(struct ctl_table_set *));
+
extern struct ctl_table_header *sysctl_head_next(struct ctl_table_header *prev);
extern struct ctl_table_header *__sysctl_head_next(struct nsproxy *namespaces,
struct ctl_table_header *prev);
@@ -1049,8 +1059,8 @@ struct ctl_table
struct ctl_table_root {
struct list_head root_list;
- struct list_head header_list;
- struct list_head *(*lookup)(struct ctl_table_root *root,
+ struct ctl_table_set default_set;
+ struct ctl_table_set *(*lookup)(struct ctl_table_root *root,
struct nsproxy *namespaces);
int (*permissions)(struct ctl_table_root *root,
struct nsproxy *namespaces, struct ctl_table *table);
@@ -1066,6 +1076,7 @@ struct ctl_table_header
struct completion *unregistering;
struct ctl_table *ctl_table_arg;
struct ctl_table_root *root;
+ struct ctl_table_set *set;
};
/* struct ctl_path describes where in the hierarchy a table is added */
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index 3855620b78a..a8eb43cf0c7 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -38,7 +38,9 @@ struct net {
struct proc_dir_entry *proc_net;
struct proc_dir_entry *proc_net_stat;
- struct list_head sysctl_table_headers;
+#ifdef CONFIG_SYSCTL
+ struct ctl_table_set sysctls;
+#endif
struct net_device *loopback_dev; /* The loopback */