This is just to make the error value more obvious. Callers don't mind. Signed-off-by: Markus Armbruster <arm...@redhat.com> Reviewed-by: Li Zhijian <lizhij...@fujitsu.com> --- migration/rdma.c | 45 +++++++++++++++++++++++---------------------- 1 file changed, 23 insertions(+), 22 deletions(-)
diff --git a/migration/rdma.c b/migration/rdma.c index 4817f1ea10..fe101236c4 100644 --- a/migration/rdma.c +++ b/migration/rdma.c @@ -1434,7 +1434,7 @@ static int qemu_rdma_unregister_waiting(RDMAContext *rdma) ret = qemu_rdma_exchange_send(rdma, &head, (uint8_t *) ®, &resp, NULL, NULL); if (ret < 0) { - return ret; + return -1; } trace_qemu_rdma_unregister_waiting_complete(chunk); @@ -1475,7 +1475,7 @@ static int qemu_rdma_poll(RDMAContext *rdma, struct ibv_cq *cq, if (ret < 0) { error_report("ibv_poll_cq failed"); - return ret; + return -1; } wr_id = wc.wr_id & RDMA_WRID_TYPE_MASK; @@ -1604,7 +1604,7 @@ static int qemu_rdma_wait_comp_channel(RDMAContext *rdma, if (rdma->received_error) { return -1; } - return rdma->error_state; + return -!!rdma->error_state; } static struct ibv_comp_channel *to_channel(RDMAContext *rdma, uint64_t wrid) @@ -1649,7 +1649,7 @@ static int qemu_rdma_block_for_wrid(RDMAContext *rdma, while (wr_id != wrid_requested) { ret = qemu_rdma_poll(rdma, poll_cq, &wr_id_in, byte_len); if (ret < 0) { - return ret; + return -1; } wr_id = wr_id_in & RDMA_WRID_TYPE_MASK; @@ -1723,7 +1723,7 @@ err_block_for_wrid: } rdma->error_state = ret; - return ret; + return -1; } /* @@ -1778,9 +1778,10 @@ static int qemu_rdma_post_send_control(RDMAContext *rdma, uint8_t *buf, ret = qemu_rdma_block_for_wrid(rdma, RDMA_WRID_SEND_CONTROL, NULL); if (ret < 0) { error_report("rdma migration: send polling control error"); + return -1; } - return ret; + return 0; } /* @@ -1822,7 +1823,7 @@ static int qemu_rdma_exchange_get_response(RDMAContext *rdma, if (ret < 0) { error_report("rdma migration: recv polling control error!"); - return ret; + return -1; } network_to_control((void *) rdma->wr_data[idx].control); @@ -1900,7 +1901,7 @@ static int qemu_rdma_exchange_send(RDMAContext *rdma, RDMAControlHeader *head, ret = qemu_rdma_exchange_get_response(rdma, &resp, RDMA_CONTROL_READY, RDMA_WRID_READY); if (ret < 0) { - return ret; + return -1; } } @@ -1912,7 +1913,7 @@ static int qemu_rdma_exchange_send(RDMAContext *rdma, RDMAControlHeader *head, if (ret) { error_report("rdma migration: error posting" " extra control recv for anticipated result!"); - return ret; + return -1; } } @@ -1922,7 +1923,7 @@ static int qemu_rdma_exchange_send(RDMAContext *rdma, RDMAControlHeader *head, ret = qemu_rdma_post_recv_control(rdma, RDMA_WRID_READY); if (ret) { error_report("rdma migration: error posting first control recv!"); - return ret; + return -1; } /* @@ -1932,7 +1933,7 @@ static int qemu_rdma_exchange_send(RDMAContext *rdma, RDMAControlHeader *head, if (ret < 0) { error_report("Failed to send control buffer!"); - return ret; + return -1; } /* @@ -1943,7 +1944,7 @@ static int qemu_rdma_exchange_send(RDMAContext *rdma, RDMAControlHeader *head, trace_qemu_rdma_exchange_send_issue_callback(); ret = callback(rdma); if (ret < 0) { - return ret; + return -1; } } @@ -1952,7 +1953,7 @@ static int qemu_rdma_exchange_send(RDMAContext *rdma, RDMAControlHeader *head, resp->type, RDMA_WRID_DATA); if (ret < 0) { - return ret; + return -1; } qemu_rdma_move_header(rdma, RDMA_WRID_DATA, resp); @@ -1988,7 +1989,7 @@ static int qemu_rdma_exchange_recv(RDMAContext *rdma, RDMAControlHeader *head, if (ret < 0) { error_report("Failed to send control buffer!"); - return ret; + return -1; } /* @@ -1998,7 +1999,7 @@ static int qemu_rdma_exchange_recv(RDMAContext *rdma, RDMAControlHeader *head, expecting, RDMA_WRID_READY); if (ret < 0) { - return ret; + return -1; } qemu_rdma_move_header(rdma, RDMA_WRID_READY, head); @@ -2009,7 +2010,7 @@ static int qemu_rdma_exchange_recv(RDMAContext *rdma, RDMAControlHeader *head, ret = qemu_rdma_post_recv_control(rdma, RDMA_WRID_READY); if (ret) { error_report("rdma migration: error posting second control recv!"); - return ret; + return -1; } return 0; @@ -2082,7 +2083,7 @@ retry: "block %d chunk %" PRIu64 " current %" PRIu64 " len %" PRIu64 " %d", current_index, chunk, sge.addr, length, rdma->nb_sent); - return ret; + return -1; } } @@ -2140,7 +2141,7 @@ retry: ret = qemu_rdma_exchange_send(rdma, &head, (uint8_t *) ®, &resp, ®_result_idx, NULL); if (ret < 0) { - return ret; + return -1; } /* try to overlap this single registration with the one we sent. */ @@ -2214,7 +2215,7 @@ retry: if (ret < 0) { error_report("rdma migration: failed to make " "room in full send queue!"); - return ret; + return -1; } goto retry; @@ -2256,7 +2257,7 @@ static int qemu_rdma_write_flush(QEMUFile *f, RDMAContext *rdma) rdma->current_index, rdma->current_addr, rdma->current_length); if (ret < 0) { - return ret; + return -1; } if (ret == 0) { @@ -2338,7 +2339,7 @@ static int qemu_rdma_write(QEMUFile *f, RDMAContext *rdma, if (!qemu_rdma_buffer_mergeable(rdma, current_addr, len)) { ret = qemu_rdma_write_flush(f, rdma); if (ret) { - return ret; + return -1; } rdma->current_length = 0; rdma->current_addr = current_addr; @@ -3516,7 +3517,7 @@ err_rdma_dest_wait: rdma->error_state = ret; qemu_rdma_cleanup(rdma); g_free(rdma_return_path); - return ret; + return -1; } static int dest_ram_sort_func(const void *a, const void *b) -- 2.41.0