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 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: s390-qeth-when-thread-completes-wake-up-all-waiters.patch and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From foo@baz Wed Mar 28 20:16:33 CEST 2018
From: Julian Wiedmann jwi@linux.vnet.ibm.com Date: Tue, 20 Mar 2018 07:59:13 +0100 Subject: s390/qeth: when thread completes, wake up all waiters
From: Julian Wiedmann jwi@linux.vnet.ibm.com
[ 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.
Signed-off-by: Julian Wiedmann jwi@linux.vnet.ibm.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/s390/net/qeth_core_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -957,7 +957,7 @@ 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 jwi@linux.vnet.ibm.com are
queue-4.9/s390-qeth-when-thread-completes-wake-up-all-waiters.patch queue-4.9/s390-qeth-lock-read-device-while-queueing-next-buffer.patch queue-4.9/net-iucv-free-memory-obtained-by-kzalloc.patch queue-4.9/s390-qeth-on-channel-error-reject-further-cmd-requests.patch queue-4.9/s390-qeth-free-netdevice-when-removing-a-card.patch