diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2016-06-09 17:08:56 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-08-31 13:05:41 +0200 |
| commit | 396e287fa2ff46e83ae016cdcb300c3faa3b02f6 (patch) | |
| tree | d5e1bff898f6c530d03786cd25c7c55d169acbff | |
| parent | 7cc80c98070ccc7940fc28811c92cca0a681015d (diff) | |
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>
| -rw-r--r-- | drivers/hv/channel.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c index a68830c848e4..9a88c63f6e0d 100644 --- a/drivers/hv/channel.c +++ b/drivers/hv/channel.c @@ -73,7 +73,6 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size, void *in, *out; unsigned long flags; int ret, err = 0; - unsigned long t; struct page *page; spin_lock_irqsave(&newchannel->lock, flags); @@ -183,11 +182,7 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size, goto error1; } - t = wait_for_completion_timeout(&open_info->waitevent, 5*HZ); - if (t == 0) { - err = -ETIMEDOUT; - goto error1; - } + wait_for_completion(&open_info->waitevent); spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags); list_del(&open_info->msglistentry); |