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-rw-r--r--kernel/module.c12
1 files changed, 3 insertions, 9 deletions
diff --git a/kernel/module.c b/kernel/module.c
index e8cf636e614b..1a9a3986b136 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1912,12 +1912,6 @@ static noinline struct module *load_module(void __user *umod,
if (len > 64 * 1024 * 1024 || (hdr = vmalloc(len)) == NULL)
return ERR_PTR(-ENOMEM);
- /* Create stop_machine threads since the error path relies on
- * a non-failing stop_machine call. */
- err = stop_machine_create();
- if (err)
- goto free_hdr;
-
if (copy_from_user(hdr, umod, len) != 0) {
err = -EFAULT;
goto free_hdr;
@@ -2303,12 +2297,13 @@ static noinline struct module *load_module(void __user *umod,
/* Get rid of temporary copy */
vfree(hdr);
- stop_machine_destroy();
/* Done! */
return mod;
unlink:
- stop_machine(__unlink_module, mod, NULL);
+ /* Unlink carefully: kallsyms could be walking list. */
+ list_del_rcu(&mod->list);
+ synchronize_sched();
module_arch_cleanup(mod);
cleanup:
kobject_del(&mod->mkobj.kobj);
@@ -2331,7 +2326,6 @@ static noinline struct module *load_module(void __user *umod,
kfree(args);
free_hdr:
vfree(hdr);
- stop_machine_destroy();
return ERR_PTR(err);
truncated: