netdev - [PATCH v2 2/2] tun: update file current position

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Message-Id: <1386320930-11285-2-git-send-email-zwu.kernel@gmail.com>
Date:	Fri,  6 Dec 2013 17:08:50 +0800
From:	Zhi Yong Wu <zwu.kernel@...il.com>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	Zhi Yong Wu <wuzhy@...ux.vnet.ibm.com>
Subject: [PATCH v2 2/2] tun: update file current position

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

Signed-off-by: Zhi Yong Wu <wuzhy@...ux.vnet.ibm.com>
---
 drivers/net/tun.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 782e38b..c8ddbd0 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1356,6 +1356,8 @@ static ssize_t tun_chr_aio_read(struct kiocb *iocb, const struct iovec *iv,
 	ret = tun_do_read(tun, tfile, iocb, iv, len,
 			  file->f_flags & O_NONBLOCK);
 	ret = min_t(ssize_t, ret, len);
+	if (ret > 0)
+		iocb->ki_pos += ret;
 out:
 	tun_put(tun);
 	return ret;
-- 
1.7.6.5

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