Commit df4b565e authored by Peter Oberparleiter's avatar Peter Oberparleiter Committed by Rusty Russell

module: add MODULE_STATE_GOING notifier call

Provide module unload callback. Required by the gcov profiling
infrastructure to keep track of profiling data structures.
Signed-off-by: default avatarPeter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
parent b211104d
......@@ -745,12 +745,13 @@ sys_delete_module(const char __user *name_user, unsigned int flags)
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);
......@@ -2191,6 +2192,8 @@ 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);
......
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