From 68e78b3d78ac69412c468460606cc767a743acab Mon Sep 17 00:00:00 2001 From: Mike Marciniszyn Date: Tue, 6 Sep 2016 04:37:41 -0700 Subject: IB/rdmavt, IB/hfi1: Add lockdep asserts for lock debug This patch adds lockdep asserts in key code paths for insuring lock correctness. Reviewed-by: Ira Weiny Reviewed-by: Dennis Dalessandro Signed-off-by: Mike Marciniszyn Signed-off-by: Dennis Dalessandro Signed-off-by: Doug Ledford --- drivers/infiniband/sw/rdmavt/qp.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/infiniband/sw') diff --git a/drivers/infiniband/sw/rdmavt/qp.c b/drivers/infiniband/sw/rdmavt/qp.c index 673e2f674215..7fe0d7e3ba46 100644 --- a/drivers/infiniband/sw/rdmavt/qp.c +++ b/drivers/infiniband/sw/rdmavt/qp.c @@ -562,6 +562,9 @@ static void rvt_reset_qp(struct rvt_dev_info *rdi, struct rvt_qp *qp, __must_hold(&qp->s_hlock) __must_hold(&qp->r_lock) { + lockdep_assert_held(&qp->r_lock); + lockdep_assert_held(&qp->s_hlock); + lockdep_assert_held(&qp->s_lock); if (qp->state != IB_QPS_RESET) { qp->state = IB_QPS_RESET; @@ -595,6 +598,9 @@ static void rvt_reset_qp(struct rvt_dev_info *rdi, struct rvt_qp *qp, rdi->driver_f.notify_qp_reset(qp); } rvt_init_qp(rdi, qp, type); + lockdep_assert_held(&qp->r_lock); + lockdep_assert_held(&qp->s_hlock); + lockdep_assert_held(&qp->s_lock); } /** @@ -917,6 +923,8 @@ int rvt_error_qp(struct rvt_qp *qp, enum ib_wc_status err) int ret = 0; struct rvt_dev_info *rdi = ib_to_rvt(qp->ibqp.device); + lockdep_assert_held(&qp->r_lock); + lockdep_assert_held(&qp->s_lock); if (qp->state == IB_QPS_ERR || qp->state == IB_QPS_RESET) goto bail; -- cgit v1.2.1