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Drivers: hv: get rid of timeout in vmbus_open()
vmbus_teardown_gpadl() can result in infinite wait when it is called on 5 second timeout in vmbus_open(). The issue is caused by the fact that gpadl teardown operation won't ever succeed for an opened channel and the timeout isn't always enough. As a guest, we can always trust the host to respond to our request (and there is nothing we can do if it doesn't). Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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parent
7cc80c9807
commit
396e287fa2
1 changed files with 1 additions and 6 deletions
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@ -73,7 +73,6 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size,
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void *in, *out;
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unsigned long flags;
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int ret, err = 0;
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unsigned long t;
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struct page *page;
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spin_lock_irqsave(&newchannel->lock, flags);
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@ -183,11 +182,7 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size,
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goto error1;
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}
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t = wait_for_completion_timeout(&open_info->waitevent, 5*HZ);
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if (t == 0) {
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err = -ETIMEDOUT;
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goto error1;
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}
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wait_for_completion(&open_info->waitevent);
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spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);
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list_del(&open_info->msglistentry);
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