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authorK. Y. Srinivasan <kys@microsoft.com>2016-01-27 22:29:45 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-02-07 21:34:12 -0800
commitfe760e4d64fe5c17c39e86c410d41f6587ee88bc (patch)
treee25710bde0e1e4da9a127a3e6c449c08696c1940 /drivers/hv/hyperv_vmbus.h
parent3eba9a77d5fc2cee486a16fff435686f024f61cf (diff)
downloadop-kernel-dev-fe760e4d64fe5c17c39e86c410d41f6587ee88bc.zip
op-kernel-dev-fe760e4d64fe5c17c39e86c410d41f6587ee88bc.tar.gz
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/hyperv_vmbus.h')
-rw-r--r--drivers/hv/hyperv_vmbus.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index ac7aa30..b9ea7f5 100644
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -529,7 +529,7 @@ void hv_ringbuffer_cleanup(struct hv_ring_buffer_info *ring_info);
int hv_ringbuffer_write(struct hv_ring_buffer_info *ring_info,
struct kvec *kv_list,
- u32 kv_count, bool *signal);
+ u32 kv_count, bool *signal, bool lock);
int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info,
void *buffer, u32 buflen, u32 *buffer_actual_len,
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