Subject: module: add MODULE_STATE_GOING notifier call Date: Mon, 21 Apr 2008 14:34:31 +0200 From: Peter Oberparleiter Provide module unload callback. Required by the gcov profiling infrastructure to keep track of profiling data structures. Signed-off-by: Peter Oberparleiter Signed-off-by: Rusty Russell --- kernel/module.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) Index: linux-2.6.25/kernel/module.c =================================================================== --- linux-2.6.25.orig/kernel/module.c +++ linux-2.6.25/kernel/module.c @@ -737,12 +737,13 @@ sys_delete_module(const char __user *nam if (!forced && module_refcount(mod) != 0) wait_for_zero_refcount(mod); + mutex_unlock(&module_mutex); /* Final destruction now noone is using it. */ - if (mod->exit != NULL) { - mutex_unlock(&module_mutex); + if (mod->exit != NULL) mod->exit(); - mutex_lock(&module_mutex); - } + blocking_notifier_call_chain(&module_notify_list, + MODULE_STATE_GOING, mod); + mutex_lock(&module_mutex); /* Store the name of the last unloaded module for diagnostic purposes */ strlcpy(last_unloaded_module, mod->name, sizeof(last_unloaded_module)); free_module(mod); @@ -2185,6 +2186,8 @@ sys_init_module(void __user *umod, mod->state = MODULE_STATE_GOING; synchronize_sched(); module_put(mod); + blocking_notifier_call_chain(&module_notify_list, + MODULE_STATE_GOING, mod); mutex_lock(&module_mutex); free_module(mod); mutex_unlock(&module_mutex);