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| author | K. Y. Srinivasan <kys@microsoft.com> | 2016-01-27 22:29:45 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-07 21:34:12 -0800 |
| commit | fe760e4d64fe5c17c39e86c410d41f6587ee88bc (patch) | |
| tree | e25710bde0e1e4da9a127a3e6c449c08696c1940 /drivers/hv/channel_mgmt.c | |
| parent | 3eba9a77d5fc2cee486a16fff435686f024f61cf (diff) | |
| download | blackbird-obmc-linux-fe760e4d64fe5c17c39e86c410d41f6587ee88bc.tar.gz blackbird-obmc-linux-fe760e4d64fe5c17c39e86c410d41f6587ee88bc.zip | |
Drivers: hv: vmbus: Give control over how the ring access is serialized
On the channel send side, many of the VMBUS
device drivers explicity serialize access to the
outgoing ring buffer. Give more control to the
VMBUS device drivers in terms how to serialize
accesss to the outgoing ring buffer.
The default behavior will be to aquire the
ring lock to preserve the current behavior.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hv/channel_mgmt.c')
| -rw-r--r-- | drivers/hv/channel_mgmt.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index cf311be88cb4..b40f429aaa13 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -259,6 +259,7 @@ static struct vmbus_channel *alloc_channel(void) return NULL; channel->id = atomic_inc_return(&chan_num); + channel->acquire_ring_lock = true; spin_lock_init(&channel->inbound_lock); spin_lock_init(&channel->lock); |
