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

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

kernel/module.c

+7 −4
Original line number Diff line number Diff line
@@ -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);



	/* Final destruction now noone is using it. */

	if (mod->exit != NULL) {

	mutex_unlock(&module_mutex);

	/* Final destruction now noone is using it. */

	if (mod->exit != NULL)

		mod->exit();

	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);