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| author | Ursula Braun <ursula.braun@de.ibm.com> | 2012-02-08 00:19:50 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-02-08 18:50:20 -0500 |
| commit | 039055b965b9cfbeacb8cdcd1ef57e18b6374e58 (patch) | |
| tree | 777418f3fb39a5c053016e4c019a12a8f42a097b /drivers/s390 | |
| parent | c3ab96f36aa308fa5bf432d5a4dafc80b7373805 (diff) | |
| download | linux-3.10-039055b965b9cfbeacb8cdcd1ef57e18b6374e58.tar.gz linux-3.10-039055b965b9cfbeacb8cdcd1ef57e18b6374e58.tar.bz2 linux-3.10-039055b965b9cfbeacb8cdcd1ef57e18b6374e58.zip | |
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.c | 1 |
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 0565584b52c..cbb101828dc 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); |