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Subject[PATCH 29/49] Staging: hv: vmbus: Change the memory barrier in hv_ringbuffer_write()
Date
Use the correct memory barrier interface in Change the memory barrier 
in hv_ringbuffer_write().

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
---
drivers/staging/hv/ring_buffer.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/staging/hv/ring_buffer.c b/drivers/staging/hv/ring_buffer.c
index 8b62553..42f7672 100644
--- a/drivers/staging/hv/ring_buffer.c
+++ b/drivers/staging/hv/ring_buffer.c
@@ -413,7 +413,7 @@ int hv_ringbuffer_write(struct hv_ring_buffer_info *outring_info,
sizeof(u64));

/* Make sure we flush all writes before updating the writeIndex */
- mb();
+ smp_wmb();

/* Now, update the write location */
hv_set_next_write_location(outring_info, next_write_location);
--
1.7.4.1


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