[PATCH] sched: improve migration accuracy

[linux-2.6-omap-h63xx.git] / kernel / module.c

diff --git a/kernel/module.c b/kernel/module.c
index 45e01cb60101128c26737907c6c23d2a8acb58ab..d9eae45d0145a077d6b32d2b29156f9d3b18bfdd 100644 (file)
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -34,10 +34,10 @@
 #include <linux/err.h>
 #include <linux/vermagic.h>
 #include <linux/notifier.h>
+#include <linux/sched.h>
 #include <linux/stop_machine.h>
 #include <linux/device.h>
 #include <linux/string.h>
-#include <linux/sched.h>
 #include <linux/mutex.h>
 #include <linux/unwind.h>
 #include <asm/uaccess.h>
@@ -790,6 +790,19 @@ static struct module_attribute refcnt = {
        .show = show_refcnt,
 };
 
+void module_put(struct module *module)
+{
+       if (module) {
+               unsigned int cpu = get_cpu();
+               local_dec(&module->ref[cpu].count);
+               /* Maybe they're waiting for us to drop reference? */
+               if (unlikely(!module_is_live(module)))
+                       wake_up_process(module->waiter);
+               put_cpu();
+       }
+}
+EXPORT_SYMBOL(module_put);
+
 #else /* !CONFIG_MODULE_UNLOAD */
 static void print_unload_info(struct seq_file *m, struct module *mod)
 {
@@ -2196,7 +2209,7 @@ static int m_show(struct seq_file *m, void *p)
    Where refcount is a number or -, and deps is a comma-separated list
    of depends or -.
 */
-struct seq_operations modules_op = {
+const struct seq_operations modules_op = {
        .start  = m_start,
        .next   = m_next,
        .stop   = m_stop,