iw_cxgb4: Wake up waiters after flushing the qp

When transitioning into ERROR state, the QP was getting flushed after waking up any waiters. This can cause applications to miss flushed work requests which can stall an NFS mount.

---

 drivers/infiniband/hw/cxgb4/qp.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

index 41cd688..fad4851 100644
@@ -1538,9 +1538,9 @@ err:
 	set_state(qhp, C4IW_QP_STATE_ERROR);
 	free = 1;
 	abort = 1;
-	wake_up(&qhp->wait);
 	BUG_ON(!ep);
 	flush_qp(qhp);
+	wake_up(&qhp->wait);
 out:
 	mutex_unlock(&qhp->mutex);
 

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Hey Roland,

Hope you can get this bug fix into 3.18. Plus these others that have been submitted a while ago. Here is the entire list:

https://patchwork.kernel.org/patch/5106541/
https://patchwork.kernel.org/patch/5249511/
https://patchwork.kernel.org/patch/5249501/
https://patchwork.kernel.org/patch/5089511/
https://patchwork.kernel.org/patch/5089501/

Thanks,

Steve.
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I've pushed these to:

git://git.openfabrics.org/~swise/linux.git for_roland

Steve

Hariprasad Shenai (2):
iw_cxgb4: Fixes locking issue in process_mpa_request
iw_cxgb4: limit MRs to < 8GB for T4/T5 devices

Pramod Kumar (2):
cxgb4/rdma:Increase epd buff size for debug interface cxgb4/rdma: configure 0B MRs to match HW implementation

Steve Wise (1):
iw_cxgb4: Wake up waiters after flushing the qp

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Hey Roland, please reply and let me know if you will push these to 3.18 (would have to happen now) or if they are destined for 3.19.

Thanks,

Steve.

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