Use GFP_ATOMIC in _insert_handle() if ints are disabled. Don't panic if we get an abort with no endpoint found. Just log a warning.
Signed-off-by: Vipul Pandya <[email protected]> Signed-off-by: Steve Wise <[email protected]> --- drivers/infiniband/hw/cxgb4/cm.c | 5 ++++- drivers/infiniband/hw/cxgb4/ev.c | 8 ++++---- drivers/infiniband/hw/cxgb4/iw_cxgb4.h | 2 +- 3 files changed, 9 insertions(+), 6 deletions(-) diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c index 4c7c62f..6ce401a 100644 --- a/drivers/infiniband/hw/cxgb4/cm.c +++ b/drivers/infiniband/hw/cxgb4/cm.c @@ -1362,7 +1362,10 @@ static int abort_rpl(struct c4iw_dev *dev, struct sk_buff *skb) ep = lookup_tid(t, tid); PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid); - BUG_ON(!ep); + if (!ep) { + printk(KERN_WARNING MOD "Abort rpl to freed endpoint\n"); + return 0; + } mutex_lock(&ep->com.mutex); switch (ep->com.state) { case ABORTING: diff --git a/drivers/infiniband/hw/cxgb4/ev.c b/drivers/infiniband/hw/cxgb4/ev.c index 397cb36..cf2f6b4 100644 --- a/drivers/infiniband/hw/cxgb4/ev.c +++ b/drivers/infiniband/hw/cxgb4/ev.c @@ -84,7 +84,7 @@ void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe) struct c4iw_qp *qhp; u32 cqid; - spin_lock(&dev->lock); + spin_lock_irq(&dev->lock); qhp = get_qhp(dev, CQE_QPID(err_cqe)); if (!qhp) { printk(KERN_ERR MOD "BAD AE qpid 0x%x opcode %d " @@ -93,7 +93,7 @@ void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe) CQE_OPCODE(err_cqe), CQE_STATUS(err_cqe), CQE_TYPE(err_cqe), CQE_WRID_HI(err_cqe), CQE_WRID_LOW(err_cqe)); - spin_unlock(&dev->lock); + spin_unlock_irq(&dev->lock); goto out; } @@ -109,13 +109,13 @@ void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe) CQE_OPCODE(err_cqe), CQE_STATUS(err_cqe), CQE_TYPE(err_cqe), CQE_WRID_HI(err_cqe), CQE_WRID_LOW(err_cqe)); - spin_unlock(&dev->lock); + spin_unlock_irq(&dev->lock); goto out; } c4iw_qp_add_ref(&qhp->ibqp); atomic_inc(&chp->refcnt); - spin_unlock(&dev->lock); + spin_unlock_irq(&dev->lock); /* Bad incoming write */ if (RQ_TYPE(err_cqe) && diff --git a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h index a11ed5c..e8b88a0 100644 --- a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h +++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h @@ -246,7 +246,7 @@ static inline int _insert_handle(struct c4iw_dev *rhp, struct idr *idr, int newid; do { - if (!idr_pre_get(idr, GFP_KERNEL)) + if (!idr_pre_get(idr, lock ? GFP_KERNEL : GFP_ATOMIC)) return -ENOMEM; if (lock) spin_lock_irq(&rhp->lock); -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
