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RDMA/rxe: Make tasks schedule each other

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Replace rxe_run_task() by rxe_sched_task() when tasks call each other.
These are not performance critical and mainly involve error paths but they
run the risk of causing deadlocks.

Link: https://lore.kernel.org/r/20230304174533.11296-8-rpearsonhpe@gmail.com
Signed-off-by: Ian Ziemba <ian.ziemba@hpe.com>
Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Bob Pearson 2023-03-04 11:45:33 -06:00 committed by Jason Gunthorpe
parent 960ebe97e5
commit f455a1bc97
2 changed files with 6 additions and 6 deletions
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8
drivers/infiniband/sw/rxe/rxe_comp.c
View file

@ -322,7 +322,7 @@ static inline enum comp_state check_ack(struct rxe_qp *qp,
qp->comp.psn = pkt->psn;
if (qp->req.wait_psn) {
qp->req.wait_psn = 0;
rxe_run_task(&qp->req.task);
rxe_sched_task(&qp->req.task);
}
}
return COMPST_ERROR_RETRY;
@ -473,7 +473,7 @@ static void do_complete(struct rxe_qp *qp, struct rxe_send_wqe *wqe)
*/
if (qp->req.wait_fence) {
qp->req.wait_fence = 0;
rxe_run_task(&qp->req.task);
rxe_sched_task(&qp->req.task);
}
}
@ -487,7 +487,7 @@ static inline enum comp_state complete_ack(struct rxe_qp *qp,
if (qp->req.need_rd_atomic) {
qp->comp.timeout_retry = 0;
qp->req.need_rd_atomic = 0;
rxe_run_task(&qp->req.task);
rxe_sched_task(&qp->req.task);
}
}
@ -767,7 +767,7 @@ int rxe_completer(struct rxe_qp *qp)
RXE_CNT_COMP_RETRY);
qp->req.need_retry = 1;
qp->comp.started_retry = 1;
rxe_run_task(&qp->req.task);
rxe_sched_task(&qp->req.task);
}
goto done;

4
drivers/infiniband/sw/rxe/rxe_req.c
View file

@ -753,7 +753,7 @@ int rxe_requester(struct rxe_qp *qp)
qp->req.wqe_index);
wqe->state = wqe_state_done;
wqe->status = IB_WC_SUCCESS;
rxe_run_task(&qp->comp.task);
rxe_sched_task(&qp->comp.task);
goto done;
}
payload = mtu;
@ -837,7 +837,7 @@ int rxe_requester(struct rxe_qp *qp)
qp->req.wqe_index = queue_next_index(qp->sq.queue, qp->req.wqe_index);
wqe->state = wqe_state_error;
qp->req.state = QP_STATE_ERROR;
rxe_run_task(&qp->comp.task);
rxe_sched_task(&qp->comp.task);
exit:
ret = -EAGAIN;
out: