[PATCH] small kernel/sched.c cleanup

[powerpc.git] / kernel / module.c

diff --git a/kernel/module.c b/kernel/module.c
index 281172f..35e1b1f 100644 (file)
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1121,6 +1121,9 @@ static void free_module(struct module *mod)
        if (mod->percpu)
                percpu_modfree(mod->percpu);
 
+       /* Free lock-classes: */
+       lockdep_free_key_range(mod->module_core, mod->core_size);
+
        /* Finally, free the core (containing the module structure) */
        module_free(mod, mod->module_core);
 }
@@ -2159,6 +2162,29 @@ const struct exception_table_entry *search_module_extables(unsigned long addr)
        return e;
 }
 
+/*
+ * Is this a valid module address?
+ */
+int is_module_address(unsigned long addr)
+{
+       unsigned long flags;
+       struct module *mod;
+
+       spin_lock_irqsave(&modlist_lock, flags);
+
+       list_for_each_entry(mod, &modules, list) {
+               if (within(addr, mod->module_core, mod->core_size)) {
+                       spin_unlock_irqrestore(&modlist_lock, flags);
+                       return 1;
+               }
+       }
+
+       spin_unlock_irqrestore(&modlist_lock, flags);
+
+       return 0;
+}
+
+
 /* Is this a valid kernel address?  We don't grab the lock: we are oopsing. */
 struct module *__module_text_address(unsigned long addr)
 {