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-rw-r--r--fs/proc/proc_sysctl.c9
-rw-r--r--include/linux/sysctl.h24
-rw-r--r--kernel/sysctl.c41
3 files changed, 43 insertions, 31 deletions
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index b9d53b53d769..95dfd195e04e 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -1646,6 +1646,15 @@ struct ctl_table_header *register_sysctl_table(struct ctl_table *table)
}
EXPORT_SYMBOL(register_sysctl_table);
+int __register_sysctl_base(struct ctl_table *base_table)
+{
+ struct ctl_table_header *hdr;
+
+ hdr = register_sysctl_table(base_table);
+ kmemleak_not_leak(hdr);
+ return 0;
+}
+
static void put_links(struct ctl_table_header *header)
{
struct ctl_table_set *root_set = &sysctl_table_root.default_set;
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 4294e9668bd5..02134a8abad7 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -194,6 +194,20 @@ struct ctl_path {
#ifdef CONFIG_SYSCTL
+#define DECLARE_SYSCTL_BASE(_name, _table) \
+static struct ctl_table _name##_base_table[] = { \
+ { \
+ .procname = #_name, \
+ .mode = 0555, \
+ .child = _table, \
+ }, \
+ { }, \
+}
+
+extern int __register_sysctl_base(struct ctl_table *base_table);
+
+#define register_sysctl_base(_name) __register_sysctl_base(_name##_base_table)
+
void proc_sys_poll_notify(struct ctl_table_poll *poll);
extern void setup_sysctl_set(struct ctl_table_set *p,
@@ -236,6 +250,16 @@ extern int no_unaligned_warning;
extern struct ctl_table sysctl_mount_point[];
#else /* CONFIG_SYSCTL */
+
+#define DECLARE_SYSCTL_BASE(_name, _table)
+
+static inline int __register_sysctl_base(struct ctl_table *base_table)
+{
+ return 0;
+}
+
+#define register_sysctl_base(table) __register_sysctl_base(table)
+
static inline struct ctl_table_header *register_sysctl_table(struct ctl_table * table)
{
return NULL;
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index f79ec2cf8721..12456a535059 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -2851,41 +2851,20 @@ static struct ctl_table dev_table[] = {
{ }
};
-static struct ctl_table sysctl_base_table[] = {
- {
- .procname = "kernel",
- .mode = 0555,
- .child = kern_table,
- },
- {
- .procname = "vm",
- .mode = 0555,
- .child = vm_table,
- },
- {
- .procname = "fs",
- .mode = 0555,
- .child = fs_table,
- },
- {
- .procname = "debug",
- .mode = 0555,
- .child = debug_table,
- },
- {
- .procname = "dev",
- .mode = 0555,
- .child = dev_table,
- },
- { }
-};
+DECLARE_SYSCTL_BASE(kernel, kern_table);
+DECLARE_SYSCTL_BASE(vm, vm_table);
+DECLARE_SYSCTL_BASE(fs, fs_table);
+DECLARE_SYSCTL_BASE(debug, debug_table);
+DECLARE_SYSCTL_BASE(dev, dev_table);
int __init sysctl_init(void)
{
- struct ctl_table_header *hdr;
+ register_sysctl_base(kernel);
+ register_sysctl_base(vm);
+ register_sysctl_base(fs);
+ register_sysctl_base(debug);
+ register_sysctl_base(dev);
- hdr = register_sysctl_table(sysctl_base_table);
- kmemleak_not_leak(hdr);
return 0;
}
#endif /* CONFIG_SYSCTL */