From 5c714b234ad1d1f43e9ca196a0495678e3aa8093 Mon Sep 17 00:00:00 2001
From: "K. Y. Srinivasan" <kys@microsoft.com>
Date: Mon, 6 Jun 2011 15:49:52 -0700
Subject: [PATCH] --- yaml --- r: 259460 b: refs/heads/master c:
 df2a4a711478f5fc28b3ac85f07e191591e31eb0 h: refs/heads/master v: v3

---
 [refs]                                 | 2 +-
 trunk/drivers/staging/hv/ring_buffer.c | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index dbd1872f3dea..0d621db9d86b 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ef0d5b23022e207e9f367de52f4172daab3ac690
+refs/heads/master: df2a4a711478f5fc28b3ac85f07e191591e31eb0
diff --git a/trunk/drivers/staging/hv/ring_buffer.c b/trunk/drivers/staging/hv/ring_buffer.c
index 932af1a01a1e..8b625533fe43 100644
--- a/trunk/drivers/staging/hv/ring_buffer.c
+++ b/trunk/drivers/staging/hv/ring_buffer.c
@@ -50,6 +50,8 @@ hv_get_ringbuffer_availbytes(struct hv_ring_buffer_info *rbi,
 {
 	u32 read_loc, write_loc;
 
+	smp_read_barrier_depends();
+
 	/* Capture the read/write indices before they changed */
 	read_loc = rbi->ring_buffer->read_index;
 	write_loc = rbi->ring_buffer->write_index;