From mboxrd@z Thu Jan 1 00:00:00 1970 From: "K. Y. Srinivasan" Subject: [PATCH 29/49] Staging: hv: vmbus: Change the memory barrier in hv_ringbuffer_write() Date: Mon, 6 Jun 2011 15:49:53 -0700 Message-ID: <1307400613-13234-29-git-send-email-kys@microsoft.com> References: <1307400540-13193-1-git-send-email-kys@microsoft.com> <1307400613-13234-1-git-send-email-kys@microsoft.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1307400613-13234-1-git-send-email-kys@microsoft.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: devel-bounces@linuxdriverproject.org Errors-To: devel-bounces@linuxdriverproject.org To: gregkh@suse.de, linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, virtualization@lists.osdl.org Cc: Haiyang Zhang , Abhishek Kane List-Id: virtualization@lists.linuxfoundation.org Use the correct memory barrier interface in Change the memory barrier in hv_ringbuffer_write(). Signed-off-by: K. Y. Srinivasan Signed-off-by: Haiyang Zhang Signed-off-by: Abhishek Kane --- 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