IB/iser: set intuitive values for mr_valid

This parameter is described as "is mr valid indicator".
In other words, it indicates whether memory registration
is valid or not. So intuitive values would be:
mr_valid=True, when memory registration is valid and
mr_valid=False otherwise.
Signed-off-by: Jenny Derzhavetz <jennyf@mellanox.com>
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>

drivers/infiniband/ulp/iser/iser_memory.c

@@ -399,7 +399,7 @@ iser_reg_sig_mr(struct iscsi_iser_task *iser_task,
 
 	iser_set_prot_checks(iser_task->sc, &sig_attrs->check_mask);
 
-	if (!pi_ctx->sig_mr_valid)
+	if (pi_ctx->sig_mr_valid)
 		iser_inv_rkey(iser_tx_next_wr(tx_desc), pi_ctx->sig_mr, cqe);
 
 	wr = sig_handover_wr(iser_tx_next_wr(tx_desc));
@@ -417,7 +417,7 @@ iser_reg_sig_mr(struct iscsi_iser_task *iser_task,
 	wr->access_flags = IB_ACCESS_LOCAL_WRITE |
 			   IB_ACCESS_REMOTE_READ |
 			   IB_ACCESS_REMOTE_WRITE;
-	pi_ctx->sig_mr_valid = 0;
+	pi_ctx->sig_mr_valid = 1;
 
 	sig_reg->sge.lkey = pi_ctx->sig_mr->lkey;
 	sig_reg->rkey = pi_ctx->sig_mr->rkey;
@@ -442,7 +442,7 @@ static int iser_fast_reg_mr(struct iscsi_iser_task *iser_task,
 	struct ib_reg_wr *wr;
 	int n;
 
-	if (!rsc->mr_valid)
+	if (rsc->mr_valid)
 		iser_inv_rkey(iser_tx_next_wr(tx_desc), mr, cqe);
 
 	n = ib_map_mr_sg(mr, mem->sg, mem->size, SIZE_4K);
@@ -463,7 +463,7 @@ static int iser_fast_reg_mr(struct iscsi_iser_task *iser_task,
 		     IB_ACCESS_REMOTE_WRITE |
 		     IB_ACCESS_REMOTE_READ;
 
-	rsc->mr_valid = 0;
+	rsc->mr_valid = 1;
 
 	reg->sge.lkey = mr->lkey;
 	reg->rkey = mr->rkey;

drivers/infiniband/ulp/iser/iser_verbs.c

@@ -265,7 +265,7 @@ iser_alloc_reg_res(struct ib_device *ib_device,
 		iser_err("Failed to allocate ib_fast_reg_mr err=%d\n", ret);
 		return ret;
 	}
-	res->mr_valid = 1;
+	res->mr_valid = 0;
 
 	return 0;
 }
@@ -302,7 +302,7 @@ iser_alloc_pi_ctx(struct ib_device *ib_device,
 		ret = PTR_ERR(pi_ctx->sig_mr);
 		goto sig_mr_failure;
 	}
-	pi_ctx->sig_mr_valid = 1;
+	pi_ctx->sig_mr_valid = 0;
 	desc->pi_ctx->sig_protected = 0;
 
 	return 0;