From: Jessica Yu <jeyu@redhat.com>
To: Josh Poimboeuf <jpoimboe@redhat.com>,
Seth Jennings <sjenning@redhat.com>,
Jiri Kosina <jikos@kernel.org>, Vojtech Pavlik <vojtech@suse.com>,
Miroslav Benes <mbenes@suse.cz>, Petr Mladek <pmladek@suse.com>,
Rusty Russell <rusty@rustcorp.com.au>
Cc: Steven Rostedt <rostedt@goodmis.org>,
live-patching@vger.kernel.org, linux-kernel@vger.kernel.org,
Jessica Yu <jeyu@redhat.com>
Subject: [PATCH 2/3] modules: set mod->state to GOING before going notifiers are called
Date: Wed, 9 Mar 2016 17:13:56 -0500 [thread overview]
Message-ID: <1457561637-24770-3-git-send-email-jeyu@redhat.com> (raw)
In-Reply-To: <1457561637-24770-1-git-send-email-jeyu@redhat.com>
In load_module(), the going notifiers are called during error handling
when an error occurs after the coming notifiers have already been called.
However, a module's state is still MODULE_STATE_COMING when the going
notifiers are called in the error path. To be consistent, also set
mod->state to MODULE_STATE_GOING before calling the going notifiers.
Signed-off-by: Jessica Yu <jeyu@redhat.com>
---
kernel/module.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/kernel/module.c b/kernel/module.c
index 1981ae0..9e80576 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -3494,6 +3494,9 @@ static int load_module(struct load_info *info, const char __user *uargs,
return do_init_module(mod);
coming_cleanup:
+ mutex_lock(&module_mutex);
+ mod->state = MODULE_STATE_GOING;
+ mutex_unlock(&module_mutex);
blocking_notifier_call_chain(&module_notify_list,
MODULE_STATE_GOING, mod);
--
2.4.3
next prev parent reply other threads:[~2016-03-09 22:14 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-09 22:13 [PATCH 0/3] Livepatch module notifier cleanup Jessica Yu
2016-03-09 22:13 ` [PATCH 1/3] modules: split part of complete_formation() into prepare_coming_module() Jessica Yu
2016-03-10 22:41 ` Josh Poimboeuf
2016-03-09 22:13 ` Jessica Yu [this message]
2016-03-10 3:27 ` [PATCH 2/3] modules: set mod->state to GOING before going notifiers are called Rusty Russell
2016-03-10 5:08 ` Jessica Yu
2016-03-09 22:13 ` [PATCH 3/3] livepatch/module: remove livepatch module notifier Jessica Yu
2016-03-10 22:45 ` Josh Poimboeuf
2016-03-10 3:27 ` [PATCH 0/3] Livepatch module notifier cleanup Rusty Russell
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