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List:       linux-rdma
Subject:    [PATCH 1/2] iw_cxgb4: always wake up waiters in c4iw_peer_abort_intr().
From:       Steve Wise <swise () opengridcomputing ! com>
Date:       2012-04-27 14:59:16
Message-ID: 20120427145915.27184.35216.stgit () build ! ogc ! int
[Download RAW message or body]

This fixes a race where an ingress abort fails to wake up the
thread blocked in rdma_init() causing the app to hang.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Cc: stable@vger.kernel.org
---

 drivers/infiniband/hw/cxgb4/cm.c |    5 +----
 1 files changed, 1 insertions(+), 4 deletions(-)

diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index 92b4c2b..8f43143 100644
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -2667,11 +2667,8 @@ static int peer_abort_intr(struct c4iw_dev *dev, struct sk_buff *skb)
 
 	/*
 	 * Wake up any threads in rdma_init() or rdma_fini().
-	 * However, this is not needed if com state is just
-	 * MPA_REQ_SENT
 	 */
-	if (ep->com.state != MPA_REQ_SENT)
-		c4iw_wake_up(&ep->com.wr_wait, -ECONNRESET);
+	c4iw_wake_up(&ep->com.wr_wait, -ECONNRESET);
 	sched(dev, skb);
 	return 0;
 }

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