diff options
Diffstat (limited to 'kernel/module.c')
| -rw-r--r-- | kernel/module.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/kernel/module.c b/kernel/module.c index b4994adf7187..3e0e19763d24 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -18,7 +18,7 @@ */ #include <linux/export.h> #include <linux/moduleloader.h> -#include <linux/ftrace_event.h> +#include <linux/trace_events.h> #include <linux/init.h> #include <linux/kallsyms.h> #include <linux/file.h> @@ -3258,7 +3258,7 @@ static noinline int do_init_module(struct module *mod) * * http://thread.gmane.org/gmane.linux.kernel/1420814 */ - if (current->flags & PF_USED_ASYNC) + if (!mod->async_probe_requested && (current->flags & PF_USED_ASYNC)) async_synchronize_full(); mutex_lock(&module_mutex); @@ -3391,10 +3391,19 @@ out: return err; } -static int unknown_module_param_cb(char *param, char *val, const char *modname) +static int unknown_module_param_cb(char *param, char *val, const char *modname, + void *arg) { + struct module *mod = arg; + int ret; + + if (strcmp(param, "async_probe") == 0) { + mod->async_probe_requested = true; + return 0; + } + /* Check for magic 'dyndbg' arg */ - int ret = ddebug_dyndbg_module_param_cb(param, val, modname); + ret = ddebug_dyndbg_module_param_cb(param, val, modname); if (ret != 0) pr_warn("%s: unknown parameter '%s' ignored\n", modname, param); return 0; @@ -3498,7 +3507,8 @@ static int load_module(struct load_info *info, const char __user *uargs, /* Module is ready to execute: parsing args may do that. */ after_dashes = parse_args(mod->name, mod->args, mod->kp, mod->num_kp, - -32768, 32767, unknown_module_param_cb); + -32768, 32767, NULL, + unknown_module_param_cb); if (IS_ERR(after_dashes)) { err = PTR_ERR(after_dashes); goto bug_cleanup; @@ -3526,6 +3536,9 @@ static int load_module(struct load_info *info, const char __user *uargs, module_bug_cleanup(mod); mutex_unlock(&module_mutex); + blocking_notifier_call_chain(&module_notify_list, + MODULE_STATE_GOING, mod); + /* we can't deallocate the module until we clear memory protection */ unset_module_init_ro_nx(mod); unset_module_core_ro_nx(mod); |