Patch "s390/qeth: when thread completes, wake up all waiters" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

s390/qeth: when thread completes, wake up all waiters

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
s390-qeth-when-thread-completes-wake-up-all-waiters.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Julian Wiedmann <[email protected]>
Date: Tue, 20 Mar 2018 07:59:13 +0100
Subject: s390/qeth: when thread completes, wake up all waiters

From: Julian Wiedmann <[email protected]>

[ Upstream commit 1063e432bb45be209427ed3f1ca3908e4aa3c7d7 ]

qeth_wait_for_threads() is potentially called by multiple users, make sure to notify all of them after qeth_clear_thread_running_bit() adjusted the thread_running_mask. With no timeout, callers would otherwise stall.

---
 drivers/s390/net/qeth_core_main.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

@@ -952,7 +952,7 @@ void qeth_clear_thread_running_bit(struc
 	spin_lock_irqsave(&card->thread_mask_lock, flags);
 	card->thread_running_mask &= ~thread;
 	spin_unlock_irqrestore(&card->thread_mask_lock, flags);
-	wake_up(&card->wait_q);
+	wake_up_all(&card->wait_q);
 }
 EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit);
 

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/s390-qeth-when-thread-completes-wake-up-all-waiters.patch queue-4.4/s390-qeth-lock-read-device-while-queueing-next-buffer.patch queue-4.4/net-iucv-free-memory-obtained-by-kzalloc.patch queue-4.4/s390-qeth-on-channel-error-reject-further-cmd-requests.patch queue-4.4/s390-qeth-free-netdevice-when-removing-a-card.patch