diff options
Diffstat (limited to 'drivers/infiniband/hw')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/qp.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/drivers/infiniband/hw/hfi1/qp.c b/drivers/infiniband/hw/hfi1/qp.c index d752d6768a49..c2a166d473b2 100644 --- a/drivers/infiniband/hw/hfi1/qp.c +++ b/drivers/infiniband/hw/hfi1/qp.c @@ -961,17 +961,20 @@ int get_pmtu_from_attr(struct rvt_dev_info *rdi, struct rvt_qp *qp, void notify_error_qp(struct rvt_qp *qp) { - struct hfi1_ibdev *dev = to_idev(qp->ibqp.device); struct hfi1_qp_priv *priv = qp->priv; + seqlock_t *lock = priv->s_iowait.lock; - write_seqlock(&dev->iowait_lock); - if (!list_empty(&priv->s_iowait.list) && !(qp->s_flags & RVT_S_BUSY)) { - qp->s_flags &= ~RVT_S_ANY_WAIT_IO; - list_del_init(&priv->s_iowait.list); - priv->s_iowait.lock = NULL; - rvt_put_qp(qp); + if (lock) { + write_seqlock(lock); + if (!list_empty(&priv->s_iowait.list) && + !(qp->s_flags & RVT_S_BUSY)) { + qp->s_flags &= ~RVT_S_ANY_WAIT_IO; + list_del_init(&priv->s_iowait.list); + priv->s_iowait.lock = NULL; + rvt_put_qp(qp); + } + write_sequnlock(lock); } - write_sequnlock(&dev->iowait_lock); if (!(qp->s_flags & RVT_S_BUSY)) { qp->s_hdrwords = 0; |