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vsock/vmci: log once the failed queue pair allocation

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VMCI feature is not supported in conjunction with the vSphere Fault
Tolerance (FT) feature.

VMware Tools can repeatedly try to create a vsock connection. If FT is
enabled the kernel logs is flooded with the following messages:

    qp_alloc_hypercall result = -20
    Could not attach to queue pair with -20

"qp_alloc_hypercall result = -20" was hidden by commit e8266c4c33
("VMCI: Stop log spew when qp allocation isn't possible"), but "Could
not attach to queue pair with -20" is still there flooding the log.

Since the error message can be useful in some cases, print it only once.

Fixes: d021c34405 ("VSOCK: Introduce VM Sockets")
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Jorgen Hansen <jhansen@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stefano Garzarella 2021-04-16 12:44:16 +02:00 committed by David S. Miller
parent 88a5af9439
commit e16edc99d6
1 changed files with 1 additions and 2 deletions
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3
net/vmw_vsock/vmci_transport.c
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@ -568,8 +568,7 @@ vmci_transport_queue_pair_alloc(struct vmci_qp **qpair,
peer, flags, VMCI_NO_PRIVILEGE_FLAGS);
out:
if (err < 0) {
pr_err("Could not attach to queue pair with %d\n",
err);
pr_err_once("Could not attach to queue pair with %d\n", err);
err = vmci_transport_error_to_vsock_error(err);
}