linux-kernel - [PATCH 3.4 04/27] macvtap: update file current position

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Message-Id: <20140114002623.484039019@linuxfoundation.org>
Date:	Mon, 13 Jan 2014 16:26:18 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Zhi Yong Wu <wuzhy@...ux.vnet.ibm.com>,
	"David S. Miller" <davem@...emloft.net>
Subject: [PATCH 3.4 04/27] macvtap: update file current position

3.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Zhi Yong Wu <wuzhy@...ux.vnet.ibm.com>

[ Upstream commit e6ebc7f16ca1434a334647aa56399c546be4e64b ]

Signed-off-by: Zhi Yong Wu <wuzhy@...ux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/macvtap.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -905,6 +905,8 @@ static ssize_t macvtap_aio_read(struct k
 
 	ret = macvtap_do_read(q, iocb, iv, len, file->f_flags & O_NONBLOCK);
 	ret = min_t(ssize_t, ret, len); /* XXX copied from tun.c. Why? */
+	if (ret > 0)
+		iocb->ki_pos = ret;
 out:
 	return ret;
 }


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