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authorUrsula Braun <ursula.braun@de.ibm.com>2012-02-08 00:19:50 +0000
committerDavid S. Miller <davem@davemloft.net>2012-02-08 18:50:20 -0500
commit039055b965b9cfbeacb8cdcd1ef57e18b6374e58 (patch)
tree777418f3fb39a5c053016e4c019a12a8f42a097b /drivers/s390
parentc3ab96f36aa308fa5bf432d5a4dafc80b7373805 (diff)
downloadop-kernel-dev-039055b965b9cfbeacb8cdcd1ef57e18b6374e58.zip
op-kernel-dev-039055b965b9cfbeacb8cdcd1ef57e18b6374e58.tar.gz
qeth: add wake_up on write channel
To send commands on the write channel 8 buffers exist. If all 8 buffers are used, a wait is triggered on the write channel. When such buffer are freed, a wake_up is needed. This patch adds the missing wake_up in qeth_release_buffer(). This fix is especially important when running Communications Controller for Linux on System z. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/net/qeth_core_main.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 0565584..cbb1018 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -678,6 +678,7 @@ void qeth_release_buffer(struct qeth_channel *channel,
iob->callback = qeth_send_control_data_cb;
iob->rc = 0;
spin_unlock_irqrestore(&channel->iob_lock, flags);
+ wake_up(&channel->wait_q);
}
EXPORT_SYMBOL_GPL(qeth_release_buffer);
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