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nbd: Detect servers that send unexpected error values

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Add some debugging to flag servers that are not compliant to
the NBD protocol.  This would have flagged the server bug
fixed in commit c0301fcc.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Alex Bligh <alex@alex.org.uk>

Message-Id: <1463006384-7734-11-git-send-email-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Eric Blake 2016-05-11 16:39:43 -06:00 committed by Paolo Bonzini
parent f57e2416aa
commit f3c32fce36
1 changed files with 3 additions and 1 deletions
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4
nbd/client.c
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@ -33,8 +33,10 @@ static int nbd_errno_to_system_errno(int err)
return ENOMEM;
case NBD_ENOSPC:
return ENOSPC;
case NBD_EINVAL:
default:
TRACE("Squashing unexpected error %d to EINVAL", err);
/* fallthrough */
case NBD_EINVAL:
return EINVAL;
}
}