Sun Feb 10 01:12:35 PST 2013

1 files changed, 0 insertions, 66 deletions

diff --git a/kernels/linux-libre-lts-rt/module-symbol-waiting-3.0.patch b/kernels/linux-libre-lts-rt/module-symbol-waiting-3.0.patch
deleted file mode 100644
index b87a38ff5..000000000
--- a/kernels/linux-libre-lts-rt/module-symbol-waiting-3.0.patch
+++ /dev/null
@@ -1,66 +0,0 @@
-From: Rusty Russell <rusty@rustcorp.com.au>
-Date: Fri, 28 Sep 2012 05:01:03 +0000 (+0930)
-Subject: module: fix symbol waiting when module fails before init
-X-Git-Tag: v3.7-rc1~2^2~33
-X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=6f13909f4fe9652f1
-
-module: fix symbol waiting when module fails before init
-
-We use resolve_symbol_wait(), which blocks if the module containing
-the symbol is still loading.  However:
-
-1) The module_wq we use is only woken after calling the modules' init
-   function, but there are other failure paths after the module is
-   placed in the linked list where we need to do the same thing.
-
-2) wake_up() only wakes one waiter, and our waitqueue is shared by all
-   modules, so we need to wake them all.
-
-3) wake_up_all() doesn't imply a memory barrier: I feel happier calling
-   it after we've grabbed and dropped the module_mutex, not just after
-   the state assignment.
-
-Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
----
-
-diff --git a/kernel/module.c b/kernel/module.c
-index 7f2ee45f..63cf6e7 100644
---- a/kernel/module.c
-+++ b/kernel/module.c
-@@ -2959,7 +2959,7 @@ static struct module *load_module(void __user *umod,
- 	/* Unlink carefully: kallsyms could be walking list. */
- 	list_del_rcu(&mod->list);
- 	module_bug_cleanup(mod);
--
-+	wake_up_all(&module_wq);
-  ddebug:
- 	dynamic_debug_remove(info.debug);
-  unlock:
-@@ -3034,7 +3034,7 @@ SYSCALL_DEFINE3(init_module, void __user *, umod,
- 		blocking_notifier_call_chain(&module_notify_list,
- 					     MODULE_STATE_GOING, mod);
- 		free_module(mod);
--		wake_up(&module_wq);
-+		wake_up_all(&module_wq);
- 		return ret;
- 	}
- 	if (ret > 0) {
-@@ -3046,9 +3046,8 @@ SYSCALL_DEFINE3(init_module, void __user *, umod,
- 		dump_stack();
- 	}
- 
--	/* Now it's a first class citizen!  Wake up anyone waiting for it. */
-+	/* Now it's a first class citizen! */
- 	mod->state = MODULE_STATE_LIVE;
--	wake_up(&module_wq);
- 	blocking_notifier_call_chain(&module_notify_list,
- 				     MODULE_STATE_LIVE, mod);
- 
-@@ -3071,6 +3070,7 @@ SYSCALL_DEFINE3(init_module, void __user *, umod,
- 	mod->init_ro_size = 0;
- 	mod->init_text_size = 0;
- 	mutex_unlock(&module_mutex);
-+	wake_up_all(&module_wq);
- 
- 	return 0;
- }